PRODUCT DOCUMENTATION

Transcription

1 Precision Cooling for usiness-critical Continuity Liebert PDX 0-0 kw Indoor Room Cooling Units with Modulating Capacity /W/F/D/H Versions Liebert PDX - PD PRODUC DOCUMENION

2 Introduction Liebert PDX Liebert PDX direct expansion cooling unit is equipped with the most advanced industry technology, guaranteeing precise cooling of data centers and server rooms. It comes filled with R0 refrigerant which allows the unit to reach significant levels of efficiency. his series offers units with gross rated cooling capacity from 0 to 0 kw. Liebert PDX range comes equipped with latest EC Fans technology thus ensuring top energy efficiency. he complete unit design has furthermore been optimized with enhanced heat exchangers, delivering a high level of overall efficiency and cooling capacity. In addition, Liebert PDX also includes as option unique Digital Scroll technology, making it the ideal, scalable cooling system able to expand with evolving business needs. he Digital Scroll modulating capability greatly contributes to the efficiency levels reached by Liebert PDX with a 0 kw unit (inclusive of Digital Scroll) consuming as little as a 0 kw unit, thus delivering advantageous energy savings. ll Liebert PDX's components have been optimized to provide an extremely efficient solution both for conventional computer rooms and for infrastructures facing the challenges of modern I applications. wo type of units are available: Liebert PDX Standard Height (height 90), and Liebert PDX Extended Height (total height 0) that it will be supplied in two modules connectable on the field. o allow maximum versatility and high efficiency both type of Liebert PDX are available in four air discharge versions: Upflow, Frontal and Up with fans module installed above the raised floor, and version Down with fans module installed in the raised floor. he new Liebert PDX range is available across a full range of cooling modes: direct expansion, Indirect water Freecooling, Direct ir Freecooling and dual fluid redundancy cooling. Liebert PDX Standard Height Liebert PDX Extended Height Liebert PDX - PD

3 Contents Contents Liebert PDX op Efficiency Model Configuration Operating Range echnical Data Heat Rejection (through condenser) ir Flow Characteristics Sound Pressure Level echnical Specifications 9 Filter Section 0 Microprocessor Controls Humidification he Quality Management System of Emerson Network Power S.r.l. High Performance ir Conditioning has been approved by Lloyd s Register Quality ssurance to the standard ISO 900:00 Dimensional Data / Connections Refrigerant and Hydraulic Circuits ccessories he product conforms to European Union directives 00//EC; 00/0/EC; 00/9/EC; 9//EC. Units are supplied complete with a est Certificate Conformity Declaration and Component List. Liebert PDX units are CE marked as they comply with the European directives concerning mechanical, electrical, electromagnetic and pressure equipment safety. Liebert PDX --- PD

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5 Liebert PDX op Efficiency Liebert PDX op Efficiency he new Liebert PDX Liebert PDX is Emerson Network Power answer to the latest and the future Data Center needs. Data Center environment is growing constantly in terms of cooling needs. It is asking and will continue to increase its demand for cooling solutions that provide exactly what the servers need without wasting energy overcooling as well as avoiding hot spots, Liebert PDX thanks to usage of Stage Coils is designed to maximize the efficiency at part loads. In fact as the outside conditions change all year long, as well as considering coon cooling redundancy the units work most of the time in part load. Liebert PDX provides a top efficient solution at full load, and maximizes its benefit at part load conditions. he presence of Digital Scroll is then an additional step to further improve the part load efficiency. Liebert PDX has been designed to set new efficiency targets on Direct Expansion Data Center need applications. herefore all parts of coon CRC unit have been studied and optimized to provide a top efficient solution. Smart isle M Solution When Smart Means Efficient Liebert PDX as part of Smart isle M cooling solution is the best answer to ensure the right cooling minimizing the cooling operating costs. Emerson Network Power's cold aisle containment solution, can achieve an energy saving of up to % higher than other manufacturers' cooling units with standard technology. he intelligent control of the Digital Scroll compressor's capacity together with accurate fan speed management, driven by cold aisle conditions, guarantees increased savings. Smart mode is a control algorithm developed for Smart isle M applications (Cold isle containment) meeting the cooling and airflow needs of the servers without wasting a single Watt on unnecessary cooling or air movement. Liebert PDX with Digital Scroll delivers the exact level of required air temperature while the EC Fans manages the desired airflow. his ensures that only the necessary kilowatts of input power are used to cool the I load. Units which include the lco Electronic Expansion Valve are able to further increase overall system efficiency by reducing the condensing temperature during cooler seasons and at the same time preserving the Sensible Heat Ratio. Enhanced Freecooling Liebert PDX offers a full range of Freecooling solution that answers to all the different needs of the different sites application. Indirect Water based Freecooling he right cooling with the minimum consumption Whenever the Critical application needs a complete separation between indoor and outdoor or the Humidity control band requirements are tight Liebert PDX offers the possibility to exploit water based indirect freecooling. hanks to the double coil (Freecooling water and Direct Expansion) the unit provides the highest saving match with full availability of the DX solution. he usage of Stage Coil and Digital Scroll then allows maximizing the saving in mixed mode operation, so whenever the freecooling is not able to fully take the load the compressors can work just to complete the missing cooling needs. herefore Liebert PDX Freecooling can provide extremely high energy saving granting the highest availability of the application. Liebert Economizer Direct Freecooling for Data Centers When the site allows for Direct freecooling application, and the Humidity control (still required as for most of Data Centers applications) band requirements can be enlarged to the limits of the SHRE (SHRE: 0 hermal Guidelines for Data Processing Environments) recoended zone, the Liebert PDX offers the right solution for Data Centers. Liebert Economizer allows checking not only if the external air has the right temperature to start giving some partial freecooling benefits, but also to check if the humidity is on the right conditions. Liebert PDX - PD

6 Liebert PDX op Efficiency In fact humidity control requires a relevant part of energy, therefore having an intelligent control, which allows using the external air only when it makes sense from all energy aspects, it is a key element for a Direct Freecooling for Data Center. Liebert PDX with Economizer solution allows maximizing direct freecooling benefits coupling the needed control of temperature and humidity, providing the full back up availability of the direct expansion solution. Premium Fan Module echnology for efficiency he Premium Fan Module are the evolution of the EC fans technology. hey are made of composite material. his new technology allows keeping the current high-strength of aluminum alloy adding the benefits of light weight and full flexibility on blade design of the new material. Liebert PDX has been designed around these new fans in order to have the highest benefits from the new technology, translating the new Premium Fan Module into reduced noise levels as well as increased energy efficiency. he high-level supervision of multiple units allows them to work together as a single system to optimize room temperature and humidity. his is of particular importance when the EC Fan is considered. EC fan power consumption functions according to the square-cube law, so that having five units running at 0% instead of four at 00%, means the energy used from the fans of the entire group is reduced by %. icom manages the reduction of fan speed whenever operation at full capacity is not required. Unit eraulic Design new way to look at aerodynamics erodynamics is coonly associated with cars and motorbike racing or with flying aspects. With Liebert PDX aerodynamics will be applied also high precision cooling design. In fact, the internal design of Liebert PDX has been deeply studied in order to optimize the aerodynamic impact of all the internal parts: coil shape, coil size, coil angle, electrical panel design, etc his means a dramatically reduced internal air pressure drop that iediately becomes a benefit in terms of reduced unit power consumption. Heat Exchanger Section: Stage Coil Net Sensible Capacity matters Efficiency is a fundamental requirement in all applications today. Even more for technological applications where the operational costs are by far the most significant consideration. Sensible Heat Ratio (SHR) values of greater than 0.90 are required to reduce to a minimum the energy spent controlling humidity during normal operating conditions. Heat exchanger design and a correct air distribution within the unit are two of the most important factors required to achieve optimum performance. Efficiency is a fundamental requirement in all applications today. Even more for technological applications where the operational costs are by far the most significant consideration. Sensible Heat Ratio (SHR) values of greater than 0.90 are required to reduce to a minimum the energy spent controlling humidity during normal operating conditions. Heat exchanger design and a correct air distribution within the unit are two of the most important factors required to achieve optimum performance. Liebert PDX units feature a very high coil heat exchanger surface respect to the exchanged power. Using the index [frontal Surface x Rows / refrigeration Power] values of over 00 /W are obtained. In dual circuit units, the dual stage coil increases the evaporator temperature maximizing the SHR and increasing the unit efficiency. CONOURS OF SIC EMPERURE t partial load, the efficiency is strongly increased, due to the use of the total amount of airflow and frontal coil surface: with non-staged coil system, only half heat exchanger frontal surface was interested by the thermal exchange. - Liebert PDX - PD

7 Liebert PDX op Efficiency Sophisticated design and development tools, such as Particle Image Velocimetry and Computational Fluid Dynamics are used by Emerson Network Power to identify the best components layout in order to achieve an even and pressure-equalized airflow distribution within the unit which optimizes the entire coil surface area in the heat exchanging process.liebert PDX units feature a very high coil heat exchanger surface respect to the exchanged power. Using the index [frontal Surface x Rows / refrigeration Power] values of over 00 /W are obtained. In dual circuit units, the dual stage coil increases the evaporator temperature maximizing the SHR and increasing the unit efficiency. t partial load, the efficiency is strongly increased, due to the use of the total amount of airflow and frontal coil surface: with non-staged coil system, only half heat exchanger frontal surface was interested by the thermal exchange. Sophisticated design and development tools, such as Particle Image Velocimetry and Computational Fluid Dynamics are used by Emerson Network Power to identify the best components layout in order to achieve an even and pressure-equalized airflow distribution within the unit which optimizes the entire coil surface area in the heat exchanging process. Digital Scroll Compressor Digital Scroll provides the necessary level of cooling by adjusting its delivery according to the heat load, thus ensuring constant, precise temperature levels. he Digital Scroll operates in two stages - the "loaded state", when the solenoid valve is normally closed and "unloaded state", when the solenoid valve is open. During the loaded state the compressor operates like a Standard scroll and delivers full capacity and mass flow. However, during the unloaded state, there is no capacity and no mass flow through the compressor. his allows having a number of benefits in terms of Efficiency: Perfect match between Cooling Capacity and Heat Load. Lower power input at partial load. Possibility to size cooling system to overcome future heat load growth. Improved SHR once the compressor is modulating (due to better evaporating temperature) leed Hole Modulation Chamber Solenoid Valve Spring Lift Piston ssembly Electronic Expansion Valve (EEV) he valve is designed for modulating control of refrigerant circuits with highspeed and high precision. he EEV provides superior performance compared to a hermostatic Expansion Valve (XV), due to: Precise flow control Positioning time EEV ensures a better control on super heating at the end of the evaporator, ensuring at the same time that compressor will never be filled by liquid from the 0% to 0% of its nominal capacity, instead a mechanical one cannot ensure it. It has to be calibrated and then it will work properly but only around the calibration point. his means that a XV works better (i.e. better control, longer life) with a condensing pressure as much as possible constant. For such reason with XV the condensing temperature is kept around C as set point. ut during the coldest period the condensing temperature can be lowered and the electronic expansion valve adapts to this new situation. his permits an increase of the cooling capacity of the unit, a decrease of the unit power input and so increase the energy efficiency of the entire Liebert PDX unit. Liebert PDX allows having an option the EEV both on Standard Scroll and on Digital Scroll. he choice is driven by the application: Liebert PDX - PD

8 Liebert PDX op Efficiency Only temperature control - or wide range or Humidity band In this case the EEV gives a great efficiency effects both with Standard and Digital Scroll technology. o get the biggest advantage, a different pressure set point can be used for the fan speed controller of the Liebert remote condenser. Close Humidity control Often, even the XV valve allows to get good results, mainly thanks to the Digital Scroll modulation. Liebert PDX serviceability ttention to design detail means low operational costs including product maintenance through high levels of reliability and a service friendly design. s an example, all the crucial parts of the refrigeration circuit (i.e.: thermostatic valves, sight glasses and liquid line driers) are grouped together and accessible simply by opening the front door. Easy maintenance ll components are easily accessible from the front of the room unit. he service compartment facilitates checking and setting of refrigeration circuit, without changing aeraulic conditions. he access to the compressor is possible even when the unit is operating by removing the front panel. he access to the fan is executed with the greatest care for easier interventions (maintenance and/or fan replacement). One very important feature, for example, is the possibility to check the total pressure drop of the high pressure piping using the schrader connections available in the front part of the machine. - Liebert PDX - PD

9 Model Configuration Model Configuration Digit Nomenclature he unit is fully defined by twenty two digits Digit and PX Liebert PDX Digit, and Unit Model P X Digit ir Discharge U Upflow H Frontal D Up E Down Digit System ype ir Cooled W Water Cooled F Freecooling (mixed mode) D Dualfluid chilled water + air cooled H Dualfluid chilled water + water cooled P ir Cooled + predisposition for pumped refrigerant economizer E Dualfluid chilled water + air cooled + predisposition for pumped refrigerant economizer Digit - irflow L Premium Fan Module asic Fan Module (Fix Speed) Digit 9 - Main Power Supply Single 00V / ph / 0 Hz + N Single 0V / ph / 0Hz + N Single 0V / ph / 0Hz Digit 0 -Cooling System Single Circuit Scroll R0 with XV Single Circuit Digital Scroll R0 with XV S Single Circuit Scroll R0 with EEV U Single Circuit Digital Scroll R0 with EEV Dual Circuit Scroll R0 with XV Dual Circuit Digital Scroll R0 with XV W Dual Circuit Scroll R0 with EEV X Dual Circuit Digital Scroll R0 with EEV Digit -Humidification 0 None H Infrared Humidifier U Ultra Sonic Humidifier S Electrode Humidifier Digit -Microprocessor Control Inner Display only sensor Inner Display H sensor U Small Cold fire display sensor Small Cold fire display H sensor C Large Cold fire display sensor D Large Cold fire display H sensor W Small Cold fire display sensor (for extended UP units) X Small Cold fire display H sensor (for extended UP units) Y Large Cold fire display sensor (for extended UP units) Z Large Cold fire display H sensor (for extended UP units) Digit -Heating & Re-Heating 0 None Electric heating Std Capacity Electric heating High Capacity Hot Water Heating Hot Gas Reheat El. heating Std Capacity + Hot Water Heating El. heating Std Capacity + Hot Gas Reheat Digit -ir Filter Efficiency F (EU) dust spot F (EU) dust spot + Clogged Filter Digit -Condensing Control ir Cooled or Water Cooled with Standard Pressure, way MV Water Cooled with Standard Pressure, way MV Digit -Colour lack Emerson RL 0 Digit -High Voltage Option D Standard Power Supply F Dual Power Supply Parallel + Magnetic circuit breaker for 0 single phase 0Hz Magnetic circuit breaker for 0 single phase 0Hz Q Magnetic circuit breaker for 0 three phases 0Hz Condensate Pump Magnetic circuit breaker for 0 single phase, 0Hz, with Condensate Pump R Magnetic circuit breaker for 0 three phases, 0Hz, with Condensate Pump G Dual Power Supply lternate with S + Magnetic circuit breaker for 0 single phase S Dual Power Supply lternate with S and UPS for icom + Magnetic circuit breaker for 0 single phase breaker for 0 single phase Dual Power Supply parallel + Magnetic circuit breaker for 0 three phases U Dual Power Supply lternate with S + Magnetic circuit breaker for 0 three phases V Dual Power Supply lternate with S and UPS for icom + Magnetic circuit breaker for 0 three phases Digit - Package Option 0 None S Predisposition for Smart isle (Predisposition for damper, Sensors, position switch) F Predisposition for Economizer (sensors, predisposition for dampers) G Predisposition for Smart isle + Economizer H Predisposition for damper L Predisposition for plenum installation Liebert PDX - PD

10 Model Configuration Digit 9-Monitoring N No IS Housing 0 No Card IS Web only wo IS Web IS only wo IS IS Web & IS C SiteLink - E card D SiteLink - E plus IS Web card E SiteLink - E plus IS card F IS-IPML card G x IS-IPML card H IS-IPML plus x IS Web card J IS-IPML plus x IS card K IS-IPML plus SiteLink E card Digit 0- Sensors 0 None Digit -Packaging P PLP and Pallet C PLP and Wooden Crate S Seaworthy Digit -Special Requirements Standard Emerson Network Power X Special Emerson Network Power Digit Nomenclature (Fan Module) Only for Extended Height Unit he base unit is fully defined by thirteen digits 9 0 M x x x Digit and - Fan Module M Fan ase Module F Fan ase Frame P Fan op Plenum Digit, and - Size: Nominal Length Digit - ir delivery (only for M) S Standard ack (fans removal from the front) F Front Digit - Fans L Premium Fan Module asic Fan Module (Fix Speed) Digit - Heaters 0 No heaters Std Capacity High Capacity Digit 9 - Packaging P PLP and Pallet C PLP and Wooden Crate S Seaworthy Digit 0 -Free Digit -Free Digit -Free Digit -Special Requirements Standard Emerson Network Power X Special Emerson Network Power - Liebert PDX - PD

11 Model Configuration ir discharge version (digit ) U- Upflow H- frontal (Standard unit only) D- Up E- Down Option for Extended Height unit Up Front ir Delivery (Option F in Digit Fan Module) ack ir Delivery* (Option in Digit Fan Module) * he unit has to be installed with the air delivery ducted or with the air flow channelled below the raised floor. Liebert PDX - PD

12 Model Configuration Cooling Versions (Digit ) Version Direct expansion units with air-cooled condenser ir cooled direct expansion units optimize condensing temperature in the simplest installation configurations and with minimized site impact. he compressor () pumps the hot gaseous refrigerant into an outdoor air-cooled condenser (). he liquefied refrigerant arrives to a liquid receiver () that ensures a constant and even refrigerant flow to the expansion valve () and then arrives to the evaporator (). Here the refrigerant, 9 thanks to the heat - exchanged with the room air moved by the fan () - evaporates and returns to the compressor (); from this point, the refrigerant begins a new refrigeration cycle. o maintain the correct refrigerant discharge pressure, the speed of the motor fan () is controlled (proportional mode). Shut-off valves are provided as standard to assist with routine maintenance. he compressor () has a built-in non-return valve to avoid return of liquid refrigerant from the condenser in suertime, thus protecting the compressor from undesired refrigerant slugging during the start up. second non-return valve () is necessary to avoid - in wintertime - refrigerant migration from the liquid pipes and the receiver () to the condenser (), that should be responsible of low pressure intervention at the start-up of compressor. For safety reason, a relief valve (9) is installed on the liquid receiver (); this valve is equipped with flanged connections so that the refrigerant may be discharged to the outside. External air-cooled condenser () he units may be connected with a wide range of our condensers in standard or low noise version. For technical data and performance, refer to the relevant technical documentation. Chap. gives the recoended matching condenser for Liebert PDX units as a function of outdoor air temperature. o ensure correct operation, best performance, and longest life the units must be connected to remote condensers approved by Emerson Network Power. Note : Units and external condensers are supplied separately. Note : he room unit refrigeration circuit is pressurized with helium at bar and the condenser refrigeration circuit at bar with dry air. Note : he customer is responsible for making connections between the Unit and the external condenser and for charging with refrigerant (standard R0) and oil, when request. Full instructions for these operations are given in the User Manual. Version W Direct expansion units with water -cooled condenser Liebert PDX Water Cooled is the ideal configuration for leveraging all its efficiency benefits on applications with significant distances between internal and external units, or those with strong variations in geodetic height. he compressor () pumps the hot gaseous refrigerant into a water-cooled condenser (). he liquefied refrigerant arrives to a liquid receiver () that ensures a constant and even refrigerant flow to the expansion valve () and then arrives to the evaporator (). Here the refrigerant, thanks to the heat - exchanged with the room air moved by the fan () - evaporates and returns to the compressor (); from this point, the refrigerant begins a new refrigeration cycle. he compressor () has a built-in non-return valve to avoid return of liquid refrigerant from the condenser, thus protecting the compressor from undesirable refrigerant slugging during the start up. second non-return valve () is installed to avoid refrigerant migration from the liquid pipes and the receiver () to the condenser (), that should be responsible of high Cooling Water - Liebert PDX - PD

13 Model Configuration pressure intervention at the start-up of compressor. For safety reason, a relief valve (9) is installed on the liquid receiver (); this valve is equipped with flanged connections so that the refrigerant may be discharged to the outside. Water-cooled condenser hese units are provided with one very efficient stainless steel brazed-plate water-cooled condenser (). he condenser is fitted with a modulating valve () for the automatic control of condensing pressure. he units operate with mains water or closed circuit with an external Dry Cooler. When operating in a closed circuit, to avoid undesired ice formation in wintertime, it is advisable to use water/glycol mixture: refer to Chap. for the percentages to be used at minimum ambient temperatures. Dry Coolers are available as an option; water-glycol mixture and circulation pump(s) are normally supplied by others. If mains water is used, a mechanical filter must be fitted in the water circuit to protect the plate condenser () (for other information see the User Manual). Note. he water-cooled Liebert PDX versions are filled with the complete charge of the requested refrigerant (standard R0). Version F Freecooler units s seen in the previous chapter for all applications where efficiency is a prime objective, the Liebert PDX offers the possibility of leveraging the Freecooling effect for the longest period of time, as a result of its enhanced coil distribution. he flexibility of the Liebert PDX Freecooling configuration ensures the highest energy savings and efficiency in variable working conditions including DX mode. Freecooling mode he Freecooler unit cools the air flow by means of the air refrigerant coil () in direct expansion rows [direct expansion mode] or, as an alternative, the air/water coil () in freecooling rows [freecooling mode]. Whenever the outdoor temperature is at least degrees below the indoor return temperature, the water flow is Cooling Water cooled by an external Dry Cooler (0) and passes through the coil (). When the external temperature is higher than ZE (Zero Energy emperature), the water exchanges heat with the refrigerant in the water-cooled plate condenser (). When the external temperature is below ZE, the water is cooled as much as to cool the room air directly in the air/water coil (, freecooling rows). Refrigeration circuit he compressor pumps the hot gaseous refrigerant into a water-cooled condenser (). he liquefied refrigerant arrives to a liquid receiver () that ensures a constant and even refrigerant flow to the expansion valve () and then arrives to the direct expansion rows of the evaporator (). Here the refrigerant, thanks to the heat - exchanged with the room air moved by the fan () - evaporates and returns to the compressor (); from this point, the refrigerant begins a new refrigeration cycle. he compressor () has a built-in non-return valve to avoid return of liquid refrigerant from the condenser, thus protecting the compressor from undesired refrigerant slugging during the start up. second non-return valve () is installed to avoid refrigerant migration from the liquid pipes and the receiver () to the condenser (), that should be responsible of high pressure intervention at the start-up of compressor. For safety reason, a relief valve (9) is installed on the liquid receiver (); this valve is equipped with flanged connections so that the refrigerant may be discharged to the outside. Note. he Liebert PDX Freecoolers are filled with the complete charge of the requested refrigerant (standard R0). Water-cooled condenser hese units are provided with one very efficient stainless steel brazed-plate water-cooled condenser (). he condenser is fitted with a modulating valve () for the automatic control of condensing pressure. o reduce water and energy consumption (pump), it's advisable to adopt a cooling water control valve (by the user), able to stop water feeding when unit is off. Liebert PDX - PD

14 Model Configuration Water/glycol circuit he units operate with water in closed circuit with an external Dry Cooler (0), cooled by the outside ambient air. o avoid undesired ice formation in wintertime, it is advisable to use water/glycol mixture: refer to the User Manual for the percentages to be used at minimum ambient temperatures. he circulation of the water-glycol mixture is forced (the pump () and the water-glycol mixture are not supplied). he unit is provided with -way modulating valve () to control the glycoled-water flow passing through the water/glycol coil. he opening or closing signals, generated by the electronic controller, manage the valve actuator movement in order to maintain the desiderd conditions in the conditioned room. Version D ir -cooled condenser dualfluid units Dual Fluid can be translated as cooling redundancy. In fact the unit provides the Direct Expansion full back up cooling to a Chilled Water coon working circuit. Ideal for chilled water based applications with transition between ir Conditioning and Precision Cooling, the Liebert PDX Dual Fluid ir Cooled configuration, offers efficient direct expansion cooling that works as redundant cooling for chilled water coils. he Dualfluid unit cools the air flow by means of the air refrigerant coil () in direct expansion rows [direct expansion mode: see refrigeration circuit] or, as an alternative, the air/water coil () in the chilled water rows [chilled water mode]. Refrigeration circuit he compressor () pumps the hot gaseous refrigerant into an outdoor air-cooled condenser (). he liquefied refrigerant arrives to a liquid receiver () that ensures a constant and even refrigerant flow to the expansion valve () and Cooling Water then arrives to the evaporator (). Here the refrigerant, thanks to the heat - exchanged with the room air moved by the fan () - evaporates and returns to the compressor (); from this point, the refrigerant begins a new refrigeration cycle. o maintain the correct refrigerant discharge pressure, the speed of the motor fan () is controlled (proportional mode). Shut-off valves are provided as standard to assist with routine maintenance. he compressor () has a built-in non-return valve to avoid return of liquid refrigerant from the condenser in suertime, thus protecting the compressor from undesired refrigerant slugging during the start up. second non-return valve () is necessary to avoid - in wintertime - refrigerant migration from the liquid pipes and the receiver () to the condenser (), that should be responsible of low pressure intervention at the start-up of compressor. For safety reason, a relief valve (9) is installed on the liquid receiver (); this valve is equipped with flanged connections so that the refrigerant may be discharged to the outside. External air-cooled condenser he units may be connected with a wide range of our condensers in standard or low noise version. For technical data and performance, refer to the relevant technical documentation. Chap. gives the recoended matching condenser for Liebert PDX units as a function of outdoor air temperature. o ensure correct operation, best performance, and longest life the units must be connected to remote condensers approved by Emerson Network Power. Note. Units and external condensers are supplied separately. Note. he room unit refrigeration circuit is pressurised with helium at bar and the condenser refrigeration circuit at bar with dry air. Note. he customer is responsible for making connections between the Unit and the external condenser and for charging with refrigerant (standard R0). Full instructions for these operations are given in the User Manual. - Liebert PDX - PD

15 Model Configuration Version H Water-cooled condenser dualfluid units Dual Fluid can be translated as cooling redundancy. In fact the unit provides the Direct Expansion full back up cooling to a Chilled Water coon working circuit. his cooling configuration perfectly adapts to any installation layout, therefore chillers and dry coolers can be placed wherever necessary on the site. Dualfluid mode he Dualfluid unit cools the air flow by means of the air-refrigerant coil () in direct expansion rows [direct expansion mode: see refrigeration circuit] or, as an alternative, the air/water coil () in the chilled water rows [chilled water mode]. Refrigeration circuit he compressor () pumps the hot gaseous refrigerant into a water-cooled condenser (). he liquefied refrigerant arrives to a liquid receiver () that ensures a constant and even refrigerant flow to the expansion valve () and then arrives to the evaporator (). Here the refrigerant, thanks to the heat - exchanged with the room air moved by the fan () - evaporates and returns to the compressor (); from this point, the refrigerant begins a new refrigeration cycle. he compressor () has a built-in non-return valve to avoid return of liquid refrigerant from the condenser, thus protecting the compressor from undesirable refrigerant slugging during the start up. he second non-return valve () avoids refrigerant migration from the liquid pipes and the receiver () to the condenser (), that should be responsible of high pressure intervention at the start-up of compressor. For safety reason, a relief valve (9) is installed on the liquid receiver (); this valve is equipped with flanged connections so that the refrigerant may be discharged to the outside. Water-cooled condenser hese units are provided with one very efficient stainless steel brazed-plate water-cooled condenser (). he condenser is fitted with a modulating valve () for the automatic control of condensing pressure. he units operate with mains water or open cooling tower water. If mains water or open tower water are used, a mechanical filter must be fitted in the water circuit to protect the condenser (for other information see the User Manual). Note. he water-cooled Dualfluid versions are filled with the complete charge of the requested refrigerant (standard R0). Note. o complete the Dualfluid system it is necessary to connect the chilled water coming from the external source to the air/water coil connections (). irflow (digit ) L -Premium Fan Module he improvements of the EC Fan are connected with the benefits from a continuous speed control by icom. In fact with premium solution we can have a modulating fan speed based upon the load required, saving the power input of the fans. EC fan power consumption functions according to the square-cube law, so that having ten the fan running at 0% instead of seven at 00%, means the energy used from the fans of the unit is reduced by more than 0%. So as at any time the unit will run in partial load Liebert PDX with premium fan module can allow to increase the saving of the stage coil thanks to saving on the fans side. - asic Fan Module (EC Fan Fix Speed) he latest technology available: Plastic EC Fans. hey are made of composite material. his new technology allows keeping the current high-strength of aluminum alloy adding the benefits of light weight and full flexibility on blade design of the new material. With a simple control logic that allows setting the unit for the specific site need and then have the unit running in that way. he EC Fan Fix speed can be set very easily at fixed fan speed, directly acting on the icom control without any need of cabling autotransformers voltages. Liebert PDX - PD

16 Operating Range Operating Range Liebert PDX units are provided for operating within the following working ranges (the limits concern new units on which correct installation have already been made): ll versions Room air conditions Room air conditions (units for Smart isle application) Hot water circuit Storage conditions emperature: from 0 C to C Humidity ratio From. g/kg to g/kg Relative humidity From 0% to 0% emperature: from C to C Humidity ratio From. g/kg to g/kg Relative humidity From 0% to 0% inlet water temperature max. C water pressure max.. bar from: - 0 C to: 0 C Power supply tolerances V 0%, Hz For and D units Outdoor temperature: lower limit Exceeding the winter low temperature limits could stop the compressor(s) by Low Pressure transducer. Reset to normal operation can only be carried out manually through the unit control. down to -0 C between -0 C and -0 C Remote condenser fan speed control (VRIEX) + Remote condenser fan speed control (VRIEX) Head pressure control valve (LOWEX) + increased required liquid receiver required. Hot Gas Reheat not allowed Outdoor temperature: higher limit his limit is determined by coupled condenser model. Exceeding of this limit (or a lack of maintenance), will caused a compressor stop by HP safety thermostat. Reset to normal operation can only be carried out manually. pproved Remote ir Condenser o ensure correct operation, best performance, and longest life the units must be connected to remote condensers approved by Emerson Network Power. he warranty clauses are no longer valid if the unit is connected to an unapproved remote condenser. From unit to condenser max distance From unit to condenser max geodetic height () () Relative position room unit vs. remote condenser up to 0 m equivalent length up to 00 m equivalent length up to 0 m equivalent length from 0 m to - m from 0 m to - m from - m to - m Requirements Pipe diameter see ab c see ab c see ab c Oil traps on vertical line of gas refrigerant every m, max every m, max every m, max Extra oil charge see User Manual see User Manual see User Manual Remote condenser fan speed control (VRIEX) installation mandatory mandatory mandatory Condenser design oversized +0% oversized +0% Hot gas reheat allowed NO allowed NO allowed dditional non return valve on delivery line, at m from compressor recoended mandatory mandatory - Liebert PDX - PD

17 Operating Range For W, F and H units Water or mixture temperature to condenser, lower limit (other information User Manual) min. C For F, D and H units Water condenser circuit and chilled water circuit inlet water temperature min. C water pressure Max. differential pressures on the modulating valve ( or ways) max. bar - Max. differential pressure through the closed valve: p cv - Max. differential pressure across the valve for modulating service: p ms Models p cv (kpa) p ms (kpa) PX...W/H (water condenser circuit) PX...F PX0 D/H (chilled water circuit) PX0 D/H PX0 D/H PX0 D/H PX0 D/H PX0 D/H PX0 D/H 0 00 PX0 D/H 0 00 PX09 D/H 0 00 PX0 D/H 0 00 () Positive difference in height: condenser above conditioner () Negative difference in height: condenser below conditioner Other information in User Manual. Liebert PDX - PD

18 echnical Data echnicaldata Liebert PDX performances are linked to room conditions, cooling system, airflow. he unit fitted with Digital Scroll Cooling System and Premium Fan Module can also modulate cooling capacity and airflow depending on the cooling needs. herefore each single model can provide a wide range of capacity depending on the environment it is applied in. elow is a description of the most coon conditions currently used in Data Center applications. his can help giving a picture on unit performances. Liebert PDX is an extremely flexible unit able to adapt to different sites needs. Emerson Network Power sales force has a selection tool able to provide the unit performances at the different conditions required. LEGCY his kind of system works with room air condition C, R.H. 0%. his system is often applied when the same direct expansion/chilled water system is used both for cooling the data centers as well as for air conditioning for people. In fact low air temperature allows a higher dehumidification required for air conditioning. In data centers dehumidification is not an advantage. he only heat load provided by the server is sensible heat load. herefore Liebert PDX is optimized to provide the highest net sensible capacity even at low air temperatures. You can find a reference of Liebert PDX performances published in Liebert PDX rochure. nyhow being currently this kind of working range mostly used in existing applications, and therefore, being required in different unit modulations to compare with the existing solutions, we suggest to contact our Sales representative that can offer you a detailed performance data sheet matching exactly your needs. SMR his kind of system works with room air condition C, R.H. 0%, convenient for cold aisle containment. Emerson Network Power can offer a full solution: Smart isle. Smart isle means a solution that goes from the rack to the power distribution, from the cooling to the C power. It is a system optimized to offer the highest energy efficiency. Here is a description of the cooling part of this system. Due to the closure of the cold aisle the back air of the CRC units can be relatively high. his maximizes the Freecooling period and makes this system suitable for all different climates; it offers the benefit to use the Freecooling even in hot countries. Liebert PDX optimizes its cooling capacity and its airflow following the server requirements. On the following pages you can find tables with references for the unit performances with these working conditions. Due to the Smart isle pplication system Optimization, the units can work with the precise airflow required by the servers, not being present in the data center airflow recirculation or bypass. Should you need more information on how the unit can run with different airflow, working temperatures, etc. our sales force can provide a full detailed data sheet that can match your requirements. - Liebert PDX - PD

19 echnical Data ab. a - Scroll Cooling System direct expansion 00% cooling capacity, Premium Fan Module PXxxx /W series MODELS PX0 PX0 PX0 PX0 PX0 Power supply voltage V/Ph/Hz 00V ±0% / Ph / 0Hz Refrigerant circuit single single single single single PERFORMNCE LEGCY ()() ir Condition: C, R.H. 0% air flow m /h Refrigerant R0 total gross cooling capacity kw sensible gross cooling capacity kw SHR (sensible/total ratio) compressor power input kw compressor O..... Net Sensible cooling capacity kw Upflow fan power input kw..9 x. x. x. unit power input kw Net Sensible cooling capacity kw Up fan power input kw.9.9 x. x. x. unit power input kw Net Sensible cooling capacity kw fan power input kw.. x.0 x.9 x.9 Down unit power input kw Configuration Frontal Net Sensible cooling capacity kw fan power input kw.. x.9 x.9 x. unit power input kw Condensing section (W models only) water inlet temp: 0 C-condensation temp: C water flow l/s water side pressure drop kpa 0 FN Quantity (Premium Fan Module) no. FL LR Quantity (asic Fan Module, Fix speed) no. FL LR COMPRESSOR Quantity (Scroll Cooling System) no. FL x LR 0 0 x EVPORING COIL quantity / configuration no. pipes/fins Copper/treated aluminum pitch fins..... rows no. front surface m..... REFRIGERN CONNECIONS ( models only) Refrigerant connecting pipe diameter: see ab. f, Chap. gas line outlet (pipe to be welded, o.d.) liquid line inlet (pipe to be welded, o.d.) WER CIRCUI (W models only) condenser type (W models only) razed plate water connections ISO / (W models only) inch Rp / Rp ¼ Rp ¼ Rp ¼ Rp ¼ otal water internal volume l..... DIMENSIONS width depth height footprint m Data refers to Standard Units without options, Premium Fan Module with clean F filters. Standard ESP: Upflow 0Pa; Up 0Pa; Down 0 Pa Frontal 0Pa For Up and Down versions the data refers to the height of the raised floor 00 Performance data refers to Units, if not specified otherwise. () IN HE FOLLOWING SNDRD CONDIIONS: Room conditions C bs; 0% R.H. ( C wb) - Condensing temperature: C - ir flow of the units refers to the standard configuration with F class filter. () Liebert PDX is able to adapt to the different site needs and working conditions. Performances in different working conditions, different airflows can be provided by Emerson Network Power representatives. echnical data can be subject to change without notice. Liebert PDX - PD

20 echnical Data MODELS PX0 PX0 PX0 PX0 PX0 PX0 Power supply voltage V/Ph/Hz 00V ±0% / Ph / 0Hz Refrigerant circuit double double double double double double PERFORMNCE LEGCY ()() ir Condition: C, R.H. 0% air flow m /h Refrigerant R0 total gross cooling capacity kw sensible gross cooling capacity kw SHR (sensible/total ratio) compressor power input kw compressor O Configuration Upflow Up Down Frontal Net Sensible cooling capacity kw fan power input kw x.0 x. x.99 x. x0.9 x. unit power input kw Net Sensible cooling capacity kw fan power input kw x0.99 x.0 x.9 x. x0. x. unit power input kw Net Sensible cooling capacity kw fan power input kw x0. x.9 x. x.0 x0. x. unit power input kw Net Sensible cooling capacity kw fan power input kw x0.9 x. x. x. - - unit power input kw Condensing section (W models only) water inlet temp: 0 C-condensation temp: C water flow l/s water side pressure drop kpa FN Quantity (Premium Fan Module) no. FL LR Quantity (asic Fan Module, Fix speed) no. FL LR COMPRESSOR Quantity (Scroll Cooling System) no. FL x x. x x x x LR x x0 x x x x EVPORING COIL quantity / configuration no. pipes/fins Copper/treated aluminum pitch fins rows no front surface m REFRIGERN CONNECIONS ( models only) Refrigerant connecting pipe diameter: see ab. f, Chap. gas line outlet (pipe to be welded, o.d.) / / / / / / liquid line inlet (pipe to be welded, o.d.) / / / / / / WER CIRCUI (W models only) condenser type (W models only) razed plate water connections ISO / (W models only) inch Rp ¼ Rp ¼ Rp ¼ Rp ¼ Rp ¼ Rp ¼ otal water internal volume l DIMENSIONS width depth height footprint m Data refers to Standard Units without options, Premium Fan Module with clean F filters. Standard ESP: Upflow 0Pa; Up 0Pa; Down 0 Pa Frontal 0Pa For Up and Down versions the data refers to the height of the raised floor 00 Performance data refers to Units, if not specified otherwise. () IN HE FOLLOWING SNDRD CONDIIONS: Room conditions C bs; 0% R.H. ( C wb) - Condensing temperature: C - ir flow of the units refers to the standard configuration with F class filter. () Liebert PDX is able to adapt to the different site needs and working conditions. Performances in different working conditions, different airflows can be provided by Emerson Network Power representatives. echnical data can be subject to change without notice. - Liebert PDX - PD

21 echnical Data MODELS PX09 PX0 PX0 PX09 EX PX09 EX Power supply voltage V/Ph/Hz 00V ±0% / Ph / 0Hz Refrigerant circuit double double double double double PERFORMNCE LEGCY ()() ir Condition: C, R.H. 0% air flow m /h Refrigerant R0 total gross cooling capacity kw sensible gross cooling capacity kw SHR (sensible/total ratio) compressor power input kw compressor O Net Sensible cooling capacity kw Upflow fan power input kw x. x.9 x.9.9 x. unit power input kw Net Sensible cooling capacity kw Up fan power input kw x. x. x.. x.0 unit power input kw Configuration Down Frontal Net Sensible cooling capacity kw fan power input kw x.9 x.0 x.0. x.9 unit power input kw..... Net Sensible cooling capacity kw fan power input kw unit power input kw Condensing section (W models only) water inlet temp: 0 C-condensation temp: C water flow l/s water side pressure drop kpa FN Quantity (Premium Fan Module) no. FL 0 LR Quantity (asic Fan Module, Fix speed) no. - FL LR COMPRESSOR Quantity (Scroll Cooling System) no. FL x x x x + LR x0 x x x 0 + EVPORING COIL quantity / configuration no. pipes/fins Copper/treated aluminum pitch fins..... rows no front surface m..... REFRIGERN CONNECIONS ( models only) Refrigerant connecting pipe diameter: see ab. f, Chap. gas line outlet (pipe to be welded, o.d.) / / / / / liquid line inlet (pipe to be welded, o.d.) / / / / WER CIRCUI (W models only) condenser type (W models only) razed plate water connections ISO / (W models only) inch Rp ¼ Rp ¼ Rp ¼ Rp ¼ Rp ¼ otal water internal volume l DIMENSIONS width depth height footprint m Data refers to Standard Units without options, Premium Fan Module with clean F filters. Standard ESP: Upflow 0Pa; Up 0Pa; Down 0 Pa Frontal 0Pa For Up and Down versions the data refers to the height of the raised floor 00 Performance data refers to Units, if not specified otherwise. () IN HE FOLLOWING SNDRD CONDIIONS: Room conditions C bs; 0% R.H. ( C wb) - Condensing temperature: C - ir flow of the units refers to the standard configuration with F class filter. () Liebert PDX is able to adapt to the different site needs and working conditions. Performances in different working conditions, different airflows can be provided by Emerson Network Power representatives. echnical data can be subject to change without notice. Liebert PDX - PD

22 echnical Data ab. b - Digital Scroll Cooling System direct expansion 00% cooling capacity, Premium Fan Module PXxxx /W series MODELS PX0 PX0 PX0 PX0 PX0 Power supply voltage V/Ph/Hz 00V ±0% / Ph / 0Hz Refrigerant circuit single single single single single PERFORMNCE LEGCY ()() ir Condition: C, R.H. 0% air flow m /h Refrigerant R0 total gross cooling capacity kw sensible gross cooling capacity kw SHR (sensible/total ratio) compressor power input kw compressor O Net Sensible cooling capacity kw Upflow fan power input kw.9.9 x. x. x. unit power input kw Net Sensible cooling capacity kw..... Up fan power input kw.9. x. x. x. unit power input kw Configuration Down Frontal Net Sensible cooling capacity kw fan power input kw.. x.0 x.9 x.9 unit power input kw Net Sensible cooling capacity kw..... fan power input kw.. x.9 x.9 x. unit power input kw Condensing section (W models only) water inlet temp: 0 C-condensation temp: C water flow l/s water side pressure drop kpa 9 PERFORMNCE SMR ()() ir Condition: C, R.H. 0% air flow () m /h Refrigerant R0 total gross cooling capacity kw sensible gross cooling capacity kw SHR (sensible/total ratio) - compressor power input kw compressor O Net Sensible cooling capacity kw..9.. Upflow fan power input kw.9.9 x. x. x. unit power input kw Net Sensible cooling capacity kw Up fan power input kw.9.9 x. x. x. unit power input kw Configuration Down Frontal Net Sensible cooling capacity kw fan power input kw.. x.0 x.9 x.9 unit power input kw Net Sensible cooling capacity kw fan power input kw.. x.9 x.9 x. unit power input kw Condensing section (W models only) water inlet temp: 0 C-condensation temp: C water flow l/s water side pressure drop kpa 9 FN Quantity (Premium Fan Module) no. FL LR Quantity (asic Fan Module, Fix speed) no. FL 0 LR COMPRESSOR Quantity (Digital Scroll Cooling System) no. FL x. x. x LR 0 x0 x0 x EVPORING COIL quantity / configuration no. pipes/fins Copper/treated aluminum pitch fins..... rows no. front surface m Liebert PDX - PD

23 echnical Data MODELS PX0 PX0 PX0 PX0 PX0 REFRIGERN CONNECIONS ( models only) Refrigerant connecting pipe diameter: see ab. f, Chap. gas line outlet (pipe to be welded, o.d.) liquid line inlet (pipe to be welded, o.d.) WER CIRCUI (W models only) condenser type (W models only) razed plate water connections ISO / (W models only) inch Rp ¼ Rp ¼ Rp ¼ Rp ¼ Rp ¼ otal water internal volume l..... DIMENSIONS width depth height footprint m Data refers to Standard Units without options, Premium Fan Module with clean F filters. Standard ESP: Upflow 0Pa; Up 0Pa; Down 0 Pa Frontal 0Pa For Up and Down versions the data refers to the height of the raised floor 00 Performance data refers to Units, if not specified otherwise. () IN HE FOLLOWING SNDRD CONDIIONS: Room conditions C bs; 0% R.H. ( C wb) - Condensing temperature: C - ir flow of the units refers to the standard configuration with F class filter. () IN HE FOLLOWING SNDRD CONDIIONS: Room conditions C bs; 0% R.H. (. C wb) - Condensing temperature: C - ir flow of the units refers to the standard configuration with F class filter. () Liebert PDX is able to adapt to the different site needs and working conditions. Performances in different working conditions, different airflows can be provided by Emerson Network Power representatives. () he irflow indicated in the Smart Performance is the unit nominal airflow. echnical data can be subject to change without notice. Liebert PDX - PD

24 echnical Data MODELS PX0 PX0 PX0 PX0 PX0 PX0 Power supply voltage V/Ph/Hz 00V ±0% / Ph / 0Hz Refrigerant circuit double double double double double double PERFORMNCE LEGCY ()() ir Condition: C, R.H. 0% air flow m /h Refrigerant R0 total gross cooling capacity kw..... sensible gross cooling capacity kw SHR (sensible/total ratio) compressor power input kw compressor O Net Sensible cooling capacity kw Upflow fan power input kw x.0 x. x.99 x. x0.9 x. unit power input kw Configuration Up Down Frontal Net Sensible cooling capacity kw fan power input kw x0.99 x. x.9 x. x0. x. unit power input kw Net Sensible cooling capacity kw fan power input kw x0. x.9 x. x.0 x0. x. unit power input kw Net Sensible cooling capacity kw fan power input kw x0.9 x. x. x. - - unit power input kw Condensing section (W models only) water inlet temp: 0 C-condensation temp: C water flow l/s water side pressure drop kpa PERFORMNCE SMR ()() ir Condition: C, R.H. 0% air flow () m /h Refrigerant R0 total gross cooling capacity kw sensible gross cooling capacity kw SHR (sensible/total ratio) - compressor power input kw compressor O Net Sensible cooling capacity kw Upflow fan power input kw x.0 x. x.99 x. x0.9 x. unit power input kw Configuration Up Down Frontal Net Sensible cooling capacity kw fan power input kw x0.99 x.0 x.9 x. x0. x. unit power input kw Net Sensible cooling capacity kw fan power input kw x0. x.9 x. x.0 x0. x. unit power input kw Net Sensible cooling capacity kw fan power input kw x0.9 x. x. x. - - unit power input kw Condensing section (W models only) water inlet temp: 0 C-condensation temp: C water flow l/s water side pressure drop kpa FN Quantity (Premium Fan Module) no. FL LR Quantity (asic Fan Module, Fix speed) no. FL LR COMPRESSOR Quantity (Digital Scroll Cooling System) no. FL x x. x x x x LR x x0 x x x x EVPORING COIL quantity / configuration no. pipes/fins Copper/treated aluminum pitch fins rows no front surface m Liebert PDX - PD

25 echnical Data MODELS PX0 PX0 PX0 PX0 PX0 PX0 REFRIGERN CONNECIONS ( models only) Refrigerant connecting pipe diameter: see ab. f, Chap. gas line outlet (pipe to be welded, o.d.) / / / / / / liquid line inlet (pipe to be welded, o.d.) / / / / / / WER CIRCUI (W models only) condenser type (W models only) razed plate water connections ISO / (W models only) inch Rp ¼ Rp ¼ Rp ¼ Rp ¼ Rp ¼ Rp ¼ otal water internal volume l DIMENSIONS width depth height footprint m Data refers to Standard Units without options, Premium Fan Module with clean F filters. Standard ESP: Upflow 0Pa; Up 0Pa; Down 0 Pa Frontal 0Pa For Up and Down versions the data refers to the height of the raised floor 00 Performance data refers to Units, if not specified otherwise. () IN HE FOLLOWING SNDRD CONDIIONS: Room conditions C bs; 0% R.H. ( C wb) - Condensing temperature: C - ir flow of the units refers to the standard configuration with F class filter. () IN HE FOLLOWING SNDRD CONDIIONS: Room conditions C bs; 0% R.H. (. C wb) - Condensing temperature: C - ir flow of the units refers to the standard configuration with F class filter. () Liebert PDX is able to adapt to the different site needs and working conditions. Performances in different working conditions, different airflows can be provided by Emerson Network Power representatives. () he irflow indicated in the Smart Performance is the unit nominal airflow. echnical data can be subject to change without notice. Liebert PDX - PD

26 echnical Data MODELS PX09 PX0 PX0 PX09 EX PX09 EX Power supply voltage V/Ph/Hz 00V ±0% / Ph / 0Hz Refrigerant circuit double double double single double PERFORMNCE LEGCY ()() ir Condition: C, R.H. 0% air flow m /h Refrigerant R0 total gross cooling capacity kw sensible gross cooling capacity kw SHR (sensible/total ratio) compressor power input kw compressor O Net Sensible cooling capacity kw Upflow fan power input kw x. x.9 x.9.9 x. unit power input kw Net Sensible cooling capacity kw Up fan power input kw x. x. x.. x.0 unit power input kw Configuration Down Frontal Net Sensible cooling capacity kw fan power input kw x.9 x.0 x.0. x. unit power input kw Net Sensible cooling capacity kw fan power input kw unit power input kw Condensing section (W models only) water inlet temp: 0 C-condensation temp: C water flow l/s water side pressure drop kpa PERFORMNCE SMR ()() ir Condition: C, R.H. 0% air flow () m /h Refrigerant R0 total gross cooling capacity kw... sensible gross cooling capacity kw SHR (sensible/total ratio) - compressor power input kw compressor O Net Sensible cooling capacity kw Upflow fan power input kw x. x.9 x.9.9 x. unit power input kw Net Sensible cooling capacity kw. 0. Up fan power input kw x. x. x.. x.09 unit power input kw Configuration Down Frontal Net Sensible cooling capacity kw fan power input kw x.9 x.0 x.0. x. unit power input kw Net Sensible cooling capacity kw fan power input kw unit power input kw Condensing section (W models only) water inlet temp: 0 C-condensation temp: C water flow l/s water side pressure drop kpa FN Quantity (Premium Fan Module) no. FL 0 LR Quantity (asic Fan Module, Fix speed) no. - FL LR COMPRESSOR Quantity (Digital Scroll Cooling System) no. FL x. x. x x x LR x0 x0 x x x EVPORING COIL quantity / configuration no. pipes/fins Copper/treated aluminum pitch fins..... rows no front surface m Liebert PDX - PD

27 echnical Data MODELS PX09 PX0 PX0 PX09 EX PX09 EX REFRIGERN CONNECIONS ( models only) Refrigerant connecting pipe diameter: see ab. f, Chap. gas line outlet (pipe to be welded, o.d.) / / / / / liquid line inlet (pipe to be welded, o.d.) / / / / WER CIRCUI (W models only) condenser type (W models only) razed plate water connections ISO / (W models only) inch Rp ¼ Rp ¼ Rp ¼ Rp ¼ Rp ¼ otal water internal volume l DIMENSIONS width depth height footprint m Data refers to Standard Units without options, Premium Fan Module with clean F filters. Standard ESP: Upflow 0Pa; Up 0Pa; Down 0 Pa Frontal 0Pa For Up and Down versions the data refers to the height of the raised floor 00 Performance data refers to Units, if not specified otherwise. () IN HE FOLLOWING SNDRD CONDIIONS: Room conditions C bs; 0% R.H. ( C wb) - Condensing temperature: C - ir flow of the units refers to the standard configuration with F class filter. () IN HE FOLLOWING SNDRD CONDIIONS: Room conditions C bs; 0% R.H. (. C wb) - Condensing temperature: C - ir flow of the units refers to the standard configuration with F class filter. () Liebert PDX is able to adapt to the different site needs and working conditions. Performances in different working conditions, different airflows can be provided by Emerson Network Power representatives. () he irflow indicated in the Smart Performance is the unit nominal airflow. echnical data can be subject to change without notice. Liebert PDX - PD

28 echnical Data ab. c - Scroll Cooling System freecooling direct expansion 00% cooling capacity, Premium Fan Module PXxxx F series MODELS PX0 PX0 PX0 PX0 PX0 Power supply voltage V/Ph/Hz 00V ±0% / Ph / 0Hz Refrigerant circuit single single single double double PERFORMNCE LEGCY ()() ir Condition: C, R.H. 0% air flow m /h ethylene glycol % proposed Dry Cooler ES00 ES00 ES00 ES00 ES00 MECHNICL COOLING PERFORMNCE (@.0 C outdoor air temperature) Refrigerant R0 total gross cooling capacity kw sensible gross cooling capacity kw 9... SHR (sensible/total ratio) compressor power input kw compressor O Net Sensible cooling capacity kw... Upflow fan power input kw. x. x.9 x. x.9 unit power input kw Net Sensible cooling capacity kw Up fan power input kw. x. x. x. x. unit power input kw Configuration Down Frontal Net Sensible cooling capacity kw fan power input kw. x. x.9 x. x. unit power input kw Net Sensible cooling capacity kw fan power input kw unit power input kw mixture flow l/s mixture condenser pressure drop kpa unit total pressure drop kpa FREECOOLING PERFORMNCE (@.0 C outdoor air temperature) total gross cooling capacity kw sensible gross cooling capacity kw SHR (sensible/total ratio) - Net Sensible cooling capacity kw..9. Upflow fan power input kw. x. x.9 x. x.9 unit power input kw Net Sensible cooling capacity kw Up fan power input kw. x. x. x. x. unit power input kw Configuration Down Frontal Net Sensible cooling capacity kw fan power input kw. x. x.9 x. x. unit power input kw Net Sensible cooling capacity kw..... fan power input kw unit power input kw mixture flow l/s unit total pressure drop kpa dry-cooler pressure drop kpa 9 9 FN Quantity (Premium Fan Module) no. FL 0 0 LR Quantity (asic Fan Module, Fix speed) no. FL LR COMPRESSOR Quantity (Scroll Cooling System) no. FL x x. LR 0 x x0 EVPORING COIL quantity / configuration no. pipes/fins Copper/treated aluminum pitch fins..... rows no. + + front surface m Liebert PDX - PD

29 echnical Data MODELS PX0 PX0 PX0 PX0 PX0 CHILLED WER COIL quantity / configuration no. pipes/fins Copper/treated aluminum pitch fins..... rows no. front surface m WER CIRCUI condenser type razed plate water connections ISO / inch Rp ¼ Rp ½ Rp ½ Rp ½ Rp ½ otal water internal volume l DIMENSIONS width depth height footprint m Data refers to Standard Units without options, Premium Fan Module with clean F filters. Standard ESP: Upflow 0Pa; Up 0Pa; Down 0 Pa Frontal 0Pa For Up and Down versions the data refers to the height of the raised floor 00 Performance data refers to Units, if not specified otherwise. () IN HE FOLLOWING SNDRD CONDIIONS: Room conditions C bs; 0% R.H. ( C wb) - Condensing temperature: C - ir flow of the units refers to the standard configuration with F class filter. () Liebert PDX is able to adapt to the different site needs and working conditions. Performances in different working conditions, different airflows can be provided by Emerson Network Power representatives. echnical data can be subject to change without notice. * VICULIC Connection. ** Optional. hreaded union on request Liebert PDX - PD

30 echnical Data MODELS PX0 PX0 PX0 PX09 PX0 Power supply voltage V/Ph/Hz 00V ±0% / Ph / 0Hz Refrigerant circuit double double double double double PERFORMNCE LEGCY ()() ir Condition: C, R.H. 0% air flow m /h ethylene glycol % proposed Dry Cooler ES00 ES00 ES00 ES00 ES00 MECHNICL COOLING PERFORMNCE (@.0 C outdoor air temperature) Refrigerant R0 total gross cooling capacity kw sensible gross cooling capacity kw SHR (sensible/total ratio) compressor power input kw compressor O Net Sensible cooling capacity kw Upflow fan power input kw x.9 x. x. x. x. unit power input kw Net Sensible cooling capacity kw Up fan power input kw x. x. x. x. x. unit power input kw Configuration Down Frontal Net Sensible cooling capacity kw fan power input kw x.0 x.0 x.9 x. x. unit power input kw Net Sensible cooling capacity kw fan power input kw unit power input kw mixture flow l/s mixture condenser pressure drop kpa unit total pressure drop kpa FREECOOLING PERFORMNCE (@.0 C outdoor air temperature) total gross cooling capacity kw..... sensible gross cooling capacity kw..... SHR (sensible/total ratio) - Net Sensible cooling capacity kw Upflow fan power input kw x.9 x. x. x. x. unit power input kw Net Sensible cooling capacity kw Up fan power input kw x. x. x. x. x. unit power input kw Configuration Down Frontal Net Sensible cooling capacity kw fan power input kw x.0 x.0 x.9 x. x. unit power input kw Net Sensible cooling capacity kw fan power input kw unit power input kw mixture flow l/s..... unit total pressure drop kpa dry-cooler pressure drop kpa 0 FN Quantity (Premium Fan Module) no. FL 0 LR Quantity (asic Fan Module, Fix speed) no. FL LR COMPRESSOR Quantity (Scroll Cooling System) no. FL x x x x x LR x x x x0 x EVPORING COIL quantity / configuration no. pipes/fins Copper/treated aluminum pitch fins..... rows no front surface m..... CHILLED WER COIL quantity / configuration no. pipes/fins Copper/treated aluminum pitch fins..... rows no. front surface m Liebert PDX - PD

31 echnical Data MODELS PX0 PX0 PX0 PX09 PX0 WER CIRCUI condenser type razed plate water connections ISO / inch Rp ½ O. D. * R ** otal water internal volume l DIMENSIONS width depth height footprint m Data refers to Standard Units without options, Premium Fan Module with clean F filters. Standard ESP: Upflow 0Pa; Up 0Pa; Down 0 Pa Frontal 0Pa For Up and Down versions the data refers to the height of the raised floor 00 Performance data refers to Units, if not specified otherwise. () IN HE FOLLOWING SNDRD CONDIIONS: Room conditions C bs; 0% R.H. ( C wb) - Condensing temperature: C - ir flow of the units refers to the standard configuration with F class filter. () Liebert PDX is able to adapt to the different site needs and working conditions. Performances in different working conditions, different airflows can be provided by Emerson Network Power representatives. echnical data can be subject to change without notice. * VICULIC Connection. ** Optional. hreaded union on request Liebert PDX - PD

32 echnical Data ab. d - Digital Scroll Cooling System freecooling direct expansion 00% cooling capacity, Premium Fan Module PXxxx F series MODELS PX0 PX0 PX0 PX0 PX0 Power supply voltage V/Ph/Hz 00V ±0% / Ph / 0Hz Refrigerant circuit single single single double double PERFORMNCE LEGCY ()() ir Condition: C, R.H. 0% air flow m /h ethylene glycol % proposed Dry Cooler ES00 ES00 ES00 ES00 ES00 MECHNICL COOLING PERFORMNCE (@.0 C outdoor air temperature) Refrigerant R0 total gross cooling capacity kw sensible gross cooling capacity kw..... SHR (sensible/total ratio) - compressor power input kw compressor O Net Sensible cooling capacity kw Upflow fan power input. X. X.9 X. X.9 unit power input kw Net Sensible cooling capacity kw... Up fan power input. X. X. X.. unit power input kw Configuration Down Frontal Net Sensible cooling capacity kw....9 fan power input. X. X.9 X. X. unit power input kw Net Sensible cooling capacity kw fan power input. X. X. X. X.0 unit power input kw mixture flow l/s mixture condenser pressure drop kpa unit total pressure drop kpa FREECOOLING PERFORMNCE (@.0 C outdoor air temperature) total gross cooling capacity kw sensible gross cooling capacity kw SHR (sensible/total ratio) - Net Sensible cooling capacity kw Upflow fan power input. X. X.9 X. X.9 unit power input kw Net Sensible cooling capacity kw Up fan power input. X. X. X. X. unit power input kw Configuration Down Frontal Net Sensible cooling capacity kw fan power input. X. X.9 X. X. unit power input kw Net Sensible cooling capacity kw fan power input. X. X. X. X.0 unit power input kw mixture flow l/s unit total pressure drop kpa dry-cooler pressure drop kpa 9 9 PERFORMNCE SMR ()() ir Condition: C, R.H. 0% air flow() m /h ethylene glycol % proposed Dry Cooler ES00 ES00 ES00 ES00 ES00 MECHNICL COOLING PERFORMNCE (@.0 C outdoor air temperature) Refrigerant R0 total gross cooling capacity kw sensible gross cooling capacity kw SHR (sensible/total ratio) - compressor power input kw compressor O Net Sensible cooling capacity kw Upflow fan power input. x. x.9 x. x.9 unit power input kw Net Sensible cooling capacity kw Up fan power input. x. x. x. x. unit power input kw Configuration Down Frontal Net Sensible cooling capacity kw fan power input. x. x.9 x. x. unit power input kw..... Net Sensible cooling capacity kw fan power input. x. x. x.0 x.0 unit power input kw Liebert PDX - PD

33 echnical Data MODELS mixture flow l/s mixture condenser pressure drop kpa unit total pressure drop kpa FREECOOLING PERFORMNCE (@.0 C outdoor air temperature) total gross cooling capacity kw sensible gross cooling capacity kw SHR (sensible/total ratio) - Net Sensible cooling capacity kw..... Upflow fan power input. x. x.9 x. x.9 unit power input kw..... Net Sensible cooling capacity kw.... Up fan power input. x. x. x. x. unit power input kw Configuration Down Frontal PX0 PX0 PX0 PX0 PX0 Net Sensible cooling capacity kw fan power input. x. x.9 x. x. unit power input kw Net Sensible cooling capacity kw..... fan power input. x. x. x.0 x.0 unit power input kw mixture flow l/s unit total pressure drop kpa 9 dry-cooler pressure drop kpa FN Quantity (Premium Fan Module) no. FL LR Quantity (asic Fan Module, Fix speed) no. FL LR COMPRESSOR Quantity (Digital Scroll Cooling System) no. FL x. x. x x. LR x0 x0 x x0 EVPORING COIL quantity / configuration no. pipes/fins Copper/treated aluminum pitch fins..... rows no. + + front surface m CHILLED WER COIL quantity / configuration no. pipes/fins Copper/treated aluminum pitch fins..... rows no. front surface m WER CIRCUI condenser type razed plate water connections ISO / inch Rp ¼ Rp ½ Rp ½ Rp ½ Rp ½ otal water internal volume l DIMENSIONS width depth height footprint m Data refers to Standard Units without options, Premium Fan Module with clean F filters. Standard ESP: Upflow 0Pa; Up 0Pa; Down 0 Pa Frontal 0Pa For Up and Down versions the data refers to the height of the raised floor 00 Performance data refers to Units, if not specified otherwise. () IN HE FOLLOWING SNDRD CONDIIONS: Room conditions C bs; 0% R.H. ( C wb) - Condensing temperature: C - ir flow of the units refers to the standard configuration with F class filter. () IN HE FOLLOWING SNDRD CONDIIONS: Room conditions C bs; 0% R.H. (. C wb) - Condensing temperature: C - ir flow of the units refers to the standard configuration with F class filter. () Liebert PDX is able to adapt to the different site needs and working conditions. Performances in different working conditions, different airflows can be provided by Emerson Network Power representatives. () he irflow indicated in the Smart Performance is the unit nominal airflow. echnical data can be subject to change without notice. * VICULIC Connection. ** Optional. hreaded union on request Liebert PDX - PD

34 echnical Data MODELS PX0 PX0 PX0 PX09 PX0 Power supply voltage V/Ph/Hz 00V ±0% / Ph / 0Hz Refrigerant circuit double double double double double PERFORMNCE LEGCY ()() ir Condition: C, R.H. 0% air flow m /h ethylene glycol % proposed Dry Cooler ES00 ES00 ES00 ES00 ES00 MECHNICL COOLING PERFORMNCE (@.0 C outdoor air temperature) Refrigerant R0 total gross cooling capacity kw sensible gross cooling capacity kw SHR (sensible/total ratio) compressor power input kw compressor O Net Sensible cooling capacity kw Upflow fan power input x.9 x. x. x. x. unit power input kw Net Sensible cooling capacity kw Up fan power input X. x. x. x. x. unit power input kw Configuration Down Frontal Net Sensible cooling capacity kw fan power input x.0 x.0 x.9 x. x. unit power input kw Net Sensible cooling capacity kw fan power input x unit power input kw mixture flow l/s mixture condenser pressure drop kpa unit total pressure drop kpa FREECOOLING PERFORMNCE (@.0 C outdoor air temperature) total gross cooling capacity kw sensible gross cooling capacity kw SHR (sensible/total ratio) - Net Sensible cooling capacity kw.... Upflow fan power input x.9 x. x. x. x. unit power input kw..... Net Sensible cooling capacity kw Up fan power input X. x. x. x. x. unit power input kw Configuration Down Frontal Net Sensible cooling capacity kw... fan power input x.0 x.0 x.9 x. x. unit power input kw Net Sensible cooling capacity kw fan power input x unit power input kw mixture flow l/s..... unit total pressure drop kpa dry-cooler pressure drop kpa 9 9 PERFORMNCE SMR ()() ir Condition: C, R.H. 0% air flow() m /h ethylene glycol % proposed Dry Cooler ES00 ES00 ES00 ES00 ES00 MECHNICL COOLING PERFORMNCE (@.0 C outdoor air temperature) Refrigerant R0 total gross cooling capacity kw sensible gross cooling capacity kw SHR (sensible/total ratio) - compressor power input kw compressor O Net Sensible cooling capacity kw Upflow fan power input x.9 x.9 x. x. x. unit power input kw Net Sensible cooling capacity kw Up fan power input x. x. x. x. x. unit power input kw Configuration Down Frontal Net Sensible cooling capacity kw fan power input x.0 x.0 x.9 x. x. unit power input kw Net Sensible cooling capacity kw fan power input x unit power input kw mixture flow l/s mixture condenser pressure drop kpa unit total pressure drop kpa Liebert PDX - PD

35 echnical Data MODELS PX0 PX0 PX0 PX09 PX0 FREECOOLING PERFORMNCE C outdoor air temperature) total gross cooling capacity kw sensible gross cooling capacity kw SHR (sensible/total ratio) - Net Sensible cooling capacity kw Upflow fan power input x.9 x.9 x. x. x. unit power input kw..... Net Sensible cooling capacity kw Up fan power input x. x. x. x. x. unit power input kw Net Sensible cooling capacity kw fan power input x.0 x.0 x.9 x. x. Down unit power input kw Configuration Frontal Net Sensible cooling capacity kw fan power input x unit power input kw mixture flow l/s..... unit total pressure drop kpa dry-cooler pressure drop kpa FN Quantity (Premium Fan Module) no. FL 0 LR Quantity (asic Fan Module, Fix speed) no. FL LR COMPRESSOR Quantity (Digital Scroll Cooling System) no. FL x x x x. x. LR x x x x0 x0 EVPORING COIL quantity / configuration no. pipes/fins Copper/treated aluminum pitch fins..... rows no front surface m..... CHILLED WER COIL quantity / configuration no. pipes/fins Copper/treated aluminum pitch fins..... rows no. front surface m..... WER CIRCUI condenser type razed plate water connections ISO / inch Rp ½ O. D. * R ** otal water internal volume l DIMENSIONS width depth height footprint m Data refers to Standard Units without options, Premium Fan Module with clean F filters. Standard ESP: Upflow 0Pa; Up 0Pa; Down 0 Pa Frontal 0Pa For Up and Down versions the data refers to the height of the raised floor 00 Performance data refers to Units, if not specified otherwise. () IN HE FOLLOWING SNDRD CONDIIONS: Room conditions C bs; 0% R.H. ( C wb) - Condensing temperature: C - ir flow of the units refers to the standard configuration with F class filter. () IN HE FOLLOWING SNDRD CONDIIONS: Room conditions C bs; 0% R.H. (. C wb) - Condensing temperature: C - ir flow of the units refers to the standard configuration with F class filter. () Liebert PDX is able to adapt to the different site needs and working conditions. Performances in different working conditions, different airflows can be provided by Emerson Network Power representatives. () he irflow indicated in the Smart Performance is the unit nominal airflow. echnical data can be subject to change without notice. * VICULIC Connection. ** Optional. hreaded union on request Liebert PDX - PD

36 echnical Data ab. e - Scroll Cooling System dualfluid direct expansion 00% cooling capacity, Premium Fan Module PXxxx D/H series MODELS PX0 PX0 PX0 PX0 PX0 Power supply voltage V/Ph/Hz 00V ±0% / Ph / 0Hz Refrigerant circuit single single single double double PERFORMNCE LEGCY ()() ir Condition: C, R.H. 0% air flow m /h ethylene glycol % MECHNICL COOLING PERFORMNCE () Refrigerant R0 total gross cooling capacity kw.... sensible gross cooling capacity kw.... SHR (sensible/total ratio) compressor power input kw compressor O Net Sensible cooling capacity kw Upflow fan power input. x. x.9 x. x. unit power input kw Net Sensible cooling capacity kw Up fan power input. x. x. x. x.9 unit power input kw Net Sensible cooling capacity kw... fan power input. x. x. x. x.9 Down unit power input kw Configuration Frontal Net Sensible cooling capacity kw fan power input. x. x. x. x.0 unit power input kw Condensing section (H models only) water inlet temp: 0 C-condensation temp: C water flow l/s water side pressure drop kpa CHILLED WER PERFORMNCE () total gross cooling capacity kw sensible gross cooling capacity kw SHR (sensible/total ratio) Net Sensible cooling capacity kw Upflow fan power input. x. x.9 x. x. unit power input kw..... Net Sensible cooling capacity kw Up fan power input. x. x. x. x.9 unit power input kw Configuration Down Frontal Net Sensible cooling capacity kw fan power input. x. x. x. x.9 unit power input kw Net Sensible cooling capacity kw fan power input. x. x. x. x.0 unit power input kw mixture flow l/s unit total pressure drop kpa 00 0 FN Quantity (Premium Fan Module) no. FL 0 0 LR Quantity (asic Fan Module, Fix speed) no. FL LR COMPRESSOR Quantity (Scroll Cooling System) no. FL x x. LR 0 x x0 EVPORING COIL quantity / configuration no. pipes/fins Copper/treated aluminum pitch fins..... rows no. + + front surface m CHILLED WER COIL quantity / configuration no. pipes/fins Copper/treated aluminum pitch fins..... rows no. front surface m Liebert PDX - PD

37 echnical Data MODELS PX0 PX0 PX0 PX0 PX0 REFRIGERN CONNECIONS (D models only) Refrigerant connecting pipe diameter: see ab. f, Chap. gas line outlet (pipe to be welded, o.d.) / / liquid line inlet (pipe to be welded, o.d.) / / WER CIRCUI CONDENSER (H models only) condenser type razed plate water connections ISO / inch Rp ¼ Rp ¼ Rp ¼ Rp ¼ Rp ¼ otal water internal volume l..... CHILLED WER CONEN ISO / inch Rp ¼ Rp ½ Rp ½ Rp ½ Rp ½ otal water internal volume l DIMENSIONS width depth height footprint m Data refers to Standard Units without options, Premium Fan Module with clean F filters. Standard ESP: Upflow 0Pa; Up 0Pa; Down 0 Pa Frontal 0Pa For Up and Down versions the data refers to the height of the raised floor 00 Performance data refers to Units, if not specified otherwise. () IN HE FOLLOWING SNDRD CONDIIONS: Room conditions C bs; 0% R.H. ( C wb) - Condensing temperature: C - CW mode water temperature inlet/outlet / C - ir flow of the units refers to the standard configuration with F class filter. () Liebert PDX is able to adapt to the different site needs and working conditions. Performances in different working conditions, different airflows can be provided by Emerson Network Power representatives. echnical data can be subject to change without notice. * VICULIC Connection. ** Optional. hreaded union on request - 0 Liebert PDX - PD

38 echnical Data MODELS PX0 PX0 PX0 PX09 PX0 Power supply voltage V/Ph/Hz 00V ±0% / Ph / 0Hz Refrigerant circuit double double double double double PERFORMNCE LEGCY ()() ir Condition: C, R.H. 0% air flow m /h ethylene glycol % MECHNICL COOLING PERFORMNCE () Refrigerant R0 total gross cooling capacity kw sensible gross cooling capacity kw SHR (sensible/total ratio) compressor power input kw compressor O Net Sensible cooling capacity kw Upflow fan power input x. x.9 x. x. x. unit power input kw Net Sensible cooling capacity kw Up fan power input x.9 x. x. x. x. unit power input kw Configuration Down Frontal Net Sensible cooling capacity kw fan power input x. x.0 x.99 x. x. unit power input kw Net Sensible cooling capacity kw fan power input x unit power input kw Condensing section (H models only) water inlet temp: 0 C-condensation temp: C water flow l/s water side pressure drop kpa CHILLED WER PERFORMNCE () total gross cooling capacity kw sensible gross cooling capacity kw SHR (sensible/total ratio) Net Sensible cooling capacity kw Upflow fan power input x. x.9 x. x. x. unit power input kw Net Sensible cooling capacity kw Up fan power input x.9 x. x. x. x. unit power input kw Configuration Down Frontal Net Sensible cooling capacity kw fan power input x. x.0 x.99 x. x. unit power input kw.... Net Sensible cooling capacity kw fan power input x unit power input kw mixture flow l/s unit total pressure drop kpa 9 9 FN Quantity (Premium Fan Module) no. FL 0 LR Quantity (asic Fan Module, Fix speed) no. FL LR COMPRESSOR Quantity (Scroll Cooling System) no. FL x x x x x LR x x x x0 x EVPORING COIL quantity / configuration no. pipes/fins Copper/treated aluminum pitch fins..... rows no front surface m..... CHILLED WER COIL quantity / configuration no. pipes/fins Copper/treated aluminum pitch fins..... rows no. front surface m..... REFRIGERN CONNECIONS (D models only) Refrigerant connecting pipe diameter: see ab. f, Chap. gas line outlet (pipe to be welded, o.d.) / / / / / liquid line inlet (pipe to be welded, o.d.) / / / / / Liebert PDX - PD

39 echnical Data MODELS PX0 PX0 PX0 PX09 PX0 WER CIRCUI CONDENSER (H models only) condenser type razed plate water connections ISO / inch Rp ¼ Rp ¼ Rp ¼ Rp ¼ Rp ¼ otal water internal volume l..... CHILLED WER CONEN ISO / inch Rp ½ O. D. * R ** otal water internal volume l DIMENSIONS width depth height footprint m Data refers to Standard Units without options, Premium Fan Module with clean F filters. Standard ESP: Upflow 0Pa; Up 0Pa; Down 0 Pa Frontal 0Pa For Up and Down versions the data refers to the height of the raised floor 00 Performance data refers to Units, if not specified otherwise. () IN HE FOLLOWING SNDRD CONDIIONS: Room conditions C bs; 0% R.H. ( C wb) - Condensing temperature: C - CW mode water temperature inlet/outlet / C - ir flow of the units refers to the standard configuration with F class filter. () Liebert PDX is able to adapt to the different site needs and working conditions. Performances in different working conditions, different airflows can be provided by Emerson Network Power representatives. echnical data can be subject to change without notice. * VICULIC Connection. ** Optional. hreaded union on request Liebert PDX - PD

40 echnical Data ab. f - Digital Scroll Cooling System dualfluid direct expansion 00% cooling capacity, Premium Fan Module PXxxx D/H series MODELS PX0 PX0 PX0 PX0 PX0 Power supply voltage V/Ph/Hz 00V ±0% / Ph / 0Hz Refrigerant circuit single single single double double PERFORMNCE LEGCY ()() ir Condition: C, R.H. 0% air flow m /h ethylene glycol % MECHNICL COOLING PERFORMNCE () Refrigerant R0 total gross cooling capacity kw sensible gross cooling capacity kw SHR (sensible/total ratio) compressor power input kw compressor O Net Sensible cooling capacity kw Upflow fan power input. x. x.9 x. x. unit power input kw Net Sensible cooling capacity kw Up fan power input. x. x. x. x.9 unit power input kw Configuration Down Frontal Net Sensible cooling capacity kw fan power input. x. x. x. x.9 unit power input kw Net Sensible cooling capacity kw fan power input. x. x. x. x.0 unit power input kw Condensing section water inlet temp: 0 C-condensation temp: C water flow l/s water side pressure drop kpa CHILLED WER PERFORMNCE () total gross cooling capacity kw sensible gross cooling capacity kw SHR (sensible/total ratio) Net Sensible cooling capacity kw Upflow fan power input. x. x.9 x. x. unit power input kw..... Net Sensible cooling capacity kw Up fan power input. x. x. x. x.9 unit power input kw Configuration Configuration Down Frontal Net Sensible cooling capacity kw fan power input. x. x. x. x.9 unit power input kw Net Sensible cooling capacity kw fan power input. x. x. x. x.0 unit power input kw mixture flow l/s unit total pressure drop kpa 00 0 PERFORMNCE SMR ()() ir Condition: C, R.H. 0% air flow() m /h ethylene glycol % MECHNICL COOLING PERFORMNCE () Refrigerant R0 total gross cooling capacity kw..... sensible gross cooling capacity kw..... SHR (sensible/total ratio) - compressor power input kw compressor O Net Sensible cooling capacity kw Upflow fan power input. x. x.9 x. x. unit power input kw Net Sensible cooling capacity kw Up fan power input. x. x. x. x.9 unit power input kw Down Frontal Net Sensible cooling capacity kw fan power input. x. x. x. x.9 unit power input kw Net Sensible cooling capacity kw fan power input. x. x. x. x.0 unit power input kw Liebert PDX - PD

41 echnical Data MODELS PX0 PX0 PX0 PX0 PX0 Condensing section water inlet temp: 0 C-condensation temp: C water flow l/s water side pressure drop kpa + + CHILLED WER PERFORMNCE () total gross cooling capacity kw sensible gross cooling capacity kw SHR (sensible/total ratio) - Net Sensible cooling capacity kw..9.. Upflow fan power input. x. x.9 x. x. unit power input kw..... Net Sensible cooling capacity kw... Up fan power input. x. x. x. x.9 unit power input kw Net Sensible cooling capacity kw fan power input. x. x. x. x.9 Down unit power input kw Configuration Frontal Net Sensible cooling capacity kw.. 9. fan power input. x. x. x. x.0 unit power input kw mixture flow l/s unit total pressure drop kpa 0 FN Quantity (Premium Fan Module) no. FL LR Quantity (asic Fan Module, Fix speed) no. FL LR COMPRESSOR Quantity (Digital Scroll Cooling System) no. FL.+ x. x x. LR x0 x0 x x0 EVPORING COIL quantity / configuration no. pipes/fins Copper/treated aluminum pitch fins..... rows no. + + front surface m CHILLED WER COIL quantity / configuration no. pipes/fins Copper/treated aluminum pitch fins..... rows no. front surface m REFRIGERN CONNECIONS (D models only) Refrigerant connecting pipe diameter: see ab. f, Chap. gas line outlet (pipe to be welded, o.d.) / / liquid line inlet (pipe to be welded, o.d.) / / WER CIRCUI CONDENSER (H models only) condenser type razed plate water connections ISO / inch Rp ¼ Rp ¼ Rp ¼ Rp ¼ Rp ¼ otal water internal volume l..... CHILLED WER CONEN ISO / inch Rp ¼ Rp ½ Rp ½ Rp ½ Rp ½ otal water internal volume l DIMENSIONS width depth height footprint m Data refers to Standard Units without options, Premium Fan Module with clean F filters. Standard ESP: Upflow 0Pa; Up 0Pa; Down 0 Pa Frontal 0Pa For Up and Down versions the data refers to the height of the raised floor 00 Performance data refers to Units, if not specified otherwise. () IN HE FOLLOWING SNDRD CONDIIONS: Room conditions C bs; 0% R.H. ( C wb) - Condensing temperature: C - CW mode water temperature inlet/outlet / C - ir flow of the units refers to the standard configuration with F class filter. () IN HE FOLLOWING SNDRD CONDIIONS: Room conditions C bs; 0% R.H. (. C wb) - Condensing temperature: C - CW mode water temperature inlet/outlet / C - ir flow of the units refers to the standard configuration with F class filter. () Liebert PDX is able to adapt to the different site needs and working conditions. Performances in different working conditions, different airflows can be provided by Emerson Network Power representatives. () he irflow indicated in the Smart Performance is the unit nominal airflow. echnical data can be subject to change without notice. * VICULIC Connection. ** Optional. hreaded union on request Liebert PDX - PD

42 echnical Data MODELS PX0 PX0 PX0 PX09 PX0 Power supply voltage V/Ph/Hz 00V ±0% / Ph / 0Hz Refrigerant circuit double double double double double PERFORMNCE LEGCY ()() ir Condition: C, R.H. 0% air flow m /h ethylene glycol % MECHNICL COOLING PERFORMNCE () Refrigerant R0 total gross cooling capacity kw sensible gross cooling capacity kw SHR (sensible/total ratio) compressor power input kw compressor O Net Sensible cooling capacity kw. 0.. Upflow fan power input x. x.9 x. x. x. unit power input kw Net Sensible cooling capacity kw Up fan power input x.9 x. x. x. x. unit power input kw Configuration Down Frontal Net Sensible cooling capacity kw fan power input x.0 x.0 x.99 x. x. unit power input kw Net Sensible cooling capacity kw fan power input x unit power input kw Condensing section water inlet temp: 0 C-condensation temp: C water flow l/s water side pressure drop kpa CHILLED WER PERFORMNCE () total gross cooling capacity kw sensible gross cooling capacity kw SHR (sensible/total ratio) Net Sensible cooling capacity kw Upflow fan power input x. x.9 x. x. x. unit power input kw Net Sensible cooling capacity kw Up fan power input x.9 x. x. x. x. unit power input kw Configuration Down Frontal Net Sensible cooling capacity kw fan power input x.0 x.0 x.99 x. x. unit power input kw.... Net Sensible cooling capacity kw fan power input x unit power input kw mixture flow l/s unit total pressure drop kpa 9 9 PERFORMNCE SMR ()() ir Condition: C, R.H. 0% air flow() m /h ethylene glycol % MECHNICL COOLING PERFORMNCE () Refrigerant R0 total gross cooling capacity kw sensible gross cooling capacity kw SHR (sensible/total ratio) - compressor power input kw compressor O Net Sensible cooling capacity kw Upflow fan power input x. x.9 x. x. x. unit power input kw Net Sensible cooling capacity kw Up fan power input x.9 x. x. x. x. unit power input kw Net Sensible cooling capacity kw Down fan power input x.0 x.0 x.99 x. x. unit power input kw Net Sensible cooling Configuration Frontal kw capacity fan power input x unit power input kw Condensing section (H models only) water inlet temp: 0 C-condensation temp: C water flow l/s water side pressure drop kpa Liebert PDX - PD

43 echnical Data MODELS PX0 PX0 PX0 PX09 PX0 CHILLED WER PERFORMNCE () total gross cooling capacity kw sensible gross cooling capacity kw SHR (sensible/total ratio) - Net Sensible cooling capacity kw Upflow fan power input x. x.9 x. x.. unit power input kw Net Sensible cooling capacity kw Up fan power input x.9 x. x. x. x. unit power input kw..... Net Sensible cooling capacity kw fan power input x.0 x.0 x.99 x. x. Down unit power input kw.... Configuration Frontal Net Sensible cooling capacity kw fan power input x unit power input kw mixture flow l/s unit total pressure drop kpa FN Quantity (Premium Fan Module) no. FL 0 LR Quantity (asic Fan Module, Fix speed) no. FL LR COMPRESSOR Quantity (Digital Scroll Cooling System) no. FL x x x x(.+) x. LR x x x x0 x0 EVPORING COIL quantity / configuration no. pipes/fins Copper/treated aluminum pitch fins..... rows no front surface m..... CHILLED WER COIL quantity / configuration no. pipes/fins Copper/treated aluminum pitch fins..... rows no. front surface m..... REFRIGERN CONNECIONS (D models only) Refrigerant connecting pipe diameter: see ab. f, Chap. gas line outlet (pipe to be welded, o.d.) / / / / / liquid line inlet (pipe to be welded, o.d.) / / / / / WER CIRCUI CONDENSER (H models only) condenser type razed plate water connections ISO / inch Rp ¼ Rp ¼ Rp ¼ Rp ¼ Rp ¼ otal water internal volume l..... CHILLED WER CONEN ISO / inch Rp ½ O. D. * R ** otal water internal volume l DIMENSIONS width depth height footprint m Data refers to Standard Units without options, Premium Fan Module with clean F filters. Standard ESP: Upflow 0Pa; Up 0Pa; Down 0 Pa Frontal 0Pa For Up and Down versions the data refers to the height of the raised floor 00 Performance data refers to Units, if not specified otherwise. () IN HE FOLLOWING SNDRD CONDIIONS: Room conditions C bs; 0% R.H. ( C wb) - Condensing temperature: C - CW mode water temperature inlet/outlet / C - ir flow of the units refers to the standard configuration with F class filter. () IN HE FOLLOWING SNDRD CONDIIONS: Room conditions C bs; 0% R.H. (. C wb) - Condensing temperature: C - CW mode water temperature inlet/outlet / C - ir flow of the units refers to the standard configuration with F class filter. () Liebert PDX is able to adapt to the different site needs and working conditions. Performances in different working conditions, different airflows can be provided by Emerson Network Power representatives. () he irflow indicated in the Smart Performance is the unit nominal airflow. echnical data can be subject to change without notice. * VICULIC Connection. ** Optional. hreaded union on request Liebert PDX - PD

44 Heat Rejections ( - D versions) Heat Rejections ( - D versions) Coupling of room units with remote air-cooled condensers he units should be connected to Liebert HCR or Liebert Microchannel Coil Condenser. he following paragraphs describe the suggested coupling of Liebert PDX units. he data given below are approximate and must always be verified on the basis of the other specific operating H conditions. Liebert PDX units, Dual Circuit Scroll Cooling System, can be W connected to Liebert HCR (single circuit), Liebert HR (dual L circuit) or Liebert Microchannel Coil Condenser single or dual circuit. Liebert PDX units, Dual Circuit Digital Scroll Cooling System, can be connected to Liebert HCR (single circuit) or Liebert Microchannel Coil Condenser single or dual circuit. o ensure correct operation, best performance, and longest life the units must be connected to remote condensers approved by Emerson Network Power. he warranty clauses are no longer valid if the unit is connected to an unapproved remote condenser. Connecting a too large capacity condenser (0% higher than the nominal capacity indicated in ab..a) to the PDX unit can cause malfunctioning and incorrect condenser regulation at low ambient temperature (e.g. in cold season). ll HCR condensers (refrigerant R0) with Variex have the possibility to change the condenser set point from default set point (condensing temperature 9 C) to set point (condensing temperature C). his set point increases the system efficiency despite of a little increase of the external unit noise. For more details see the HCR manuals. Note: his option is possible only when indoor units have the EEV (electronic expansion valve). ab. a - Coupling of Liebert HCR Condensers with Liebert PDX -D MODEL External temperature up to C External temperature up to 0 C External temperature up to C External temperature up to C PX0x/D x HCR x HCR9 x HCR x HCR PX0x x HCR9 x HCR9 x HCR x HCR PX0x/D x HCR9 x HCR9 x HCR x HCR PX0x/D x HCR9 x HCR x HCR x HCR99 PX0x x HCR x HCR x HCR x HCR99 PX0x/D x HCR x HCR x HCR x HCR PX0x/D x HCR x HCR x HCR x HCR9 PX0x/D x HCR x HCR x HCR9 x HCR PX0x x HCR x HCR9 x HCR x HCR PX0x/D x HCR x HCR x HCR9 x HCR PX0x/D x HCR x HCR9 x HCR x HCR PX09x/D x HCR9 x HCR x HCR x HCR99 PX0x/D x HCR9 x HCR x HCR x HCR99 PX0x x HCR x HCR x HCR99 x HCR99 PX09x x HCR x HCR x HCR x HCR99 PX09x x HCR9 x HCR x HCR x HCR99 ab. b - Coupling of Liebert Condensers with Liebert PDX -D MODEL External temperature up to C External temperature up to 0 C External temperature up to C PX0x/D x L0 x L0 x M00 PX0x x L0 x M00 x M00 PX0x/D x L0 x M00 x M00 PX0x/D x M00 x M00 x L0 PX0x x M00 x M00 x L0 PX0x/D x S0 x M00 x M00 PX0x/D x M00 x M00 x L0 PX0x/D x M00 x L0 x L0 PX0x x L0 x L0 x M00 PX0x/D x M00 x L0 x L0 PX0x/D x L0 x L0 x M00 PX09x/D x L0 x M00 x M00 PX0x/D x M00 x M00 x L0 PX0x x M00 x L0 x L0 PX09x x M00 x M00 x L0 PX09x x L0 x M00 x M00 - Liebert PDX - PD

45 Heat Rejections ( - D versions) ab. c - echnical data and performance of Liebert HCR condenser Model Power supply [V/Ph/Hz] otal Heat Rejection (HR)* R0 [kw] ir Volume [m /h] Noise Level ** m Input Power [kw] Current bsorption [] FL [] Refrigerant connections [] Gas line [] Liquid line [] HCR 0//0,0.00,0 0,,, HCR 0//0,.00,0 0,,, HCR 0//0,0.000,0,0,0,0 HCR 0//0,0.000,0,0,0,0 HCR 9 0//0,0.00,0,0,0,0 HCR 0//0,0.00,0,,, HCR 0//0 9,0.00,0,,, HCR 99 0//0 0,0.000,0,0 0,0 0,0 ab. d - echnical data and performance of Liebert Condenser Model Power supply [V/Ph/Hz] otal Heat Rejection (HR)* R0 [kw] ir Volume [m /h] Noise Level ** m Input Power [kw] Current bsorption [] FL [] Refrigerant connections [] Gas line [] Liquid line [] S0 0// M00 00// L0 00// M00 00//0.9.. L0 00// Unit with packing Dimensions [] L W 0 H 90 L W 0 H 90 L W 0 H 90 L W 0 H 90 L W 0 H 90 L W 0 H 90 L W 0 H 90 L W H 90 Weight [kg] Unit with packing Dimensions [] L 00 W 00 H 000 L W H 00 L 0 W 0 H 00 L W H 00 L 0 W 0 H 00 Weight [kg] (*) he nominal capacities refer to the following operative conditions: refrigerant as indicated (R0). temperature differences: K ( condensation outdoor). height of the installation = 0 m, above the sea level. For different altitudes, see Hirating program. clean exchange surfaces. (**) he levels of sound pressure here included are measured in the same operative conditions, and are referred to m far from the unit, at. m in height in free field conditions. Liebert PDX - PD

46 Heat Rejections (W - F - H versions) Heat Rejections (W - F - H versions) Coupling of water cooled units with remote Dry Coolers he water-condensed units are provided with a water/refrigerant exchanger with braze-welded plates made of stainless steel; this advanced exchanger type gives the highest efficiency in heat exchange. In addition, a certain oversizing of the exchanger has been provided so as to reduce pressure drops (and energy consumption of the water pump) as much as possible and thus to allow the unit to operate with the external chiller in closed circuit, even at high outdoor temperatures. he units type W/H are designed for operating with mains water or water in closed circuit with an external chiller. he units type F are designed for operating with water in closed circuit with a remote Dry Cooler (or other suitable external device). When operating in a closed circuit, the water is cooled by the outdoor air in a heat exchanger; in this case, to avoid unwanted ice formation during winter, it is advisable to use a water/glycol mixture. he circulation of the water-glycol mixture is forced (the pump is not supplied). If mains water or tower water is used, when installing the unit fit a mechanical filter on the water line to protect the condenser against possible impurities contained in the water (for condenser cleaning see the User Manual). Dry Coolers Our Dry Coolers are built with a copper/aluminium cooling coil and axial fan(s). he main data on Dry Coolers is shown in the following table: Percentage of ethylene glycol mixed with water 0% % 0% % 0% % 0% % 0% Freezing temperature C Note: In the closed circuits to avoid water freezing in the cold seasons, it is strictly recoended to mix water with ethylene glycol. he suggested percentage is given in the Diagram. For safety reason, calculate the percentage at least at C below the minimum ambient temperature. It is also recoended to check periodically the mixture: in case of leackage of the circuit, the sanitary water, used at compensation, reduces progressively the glycol percentage and increases the freezing point of the mixture! % in weight % in volume Features and benefits Liebert HPD Dry Coolers are the new range of liquid coolers, able to cover rated heat exchange capacities from to 00 kw. hey excel above all for their efficiency, versatility and reliability, thanks to the following features: possibility of installation with horizontal or vertical air flow with simple operations on site, with the same model of Dry Cooler, without needing any wiring or re-wiring inside the unit. modulating fan speed regulator with phase (optional), for a continuous modulation of the fan speed, installed on the machine, wired and factory-set, thus making the connection steps on site and the unit start-up extremely easy; the fan speed regulator with phase cutoff can be selected to control up to two set-point values for the water delivery temperature of the Dry Cooler. Do not use fan speed regulator other than the approved one supplied by the manufacturer. When the Dry Cooler is ordered without temperature control, an outer on/off type control (to be arranged by the customer) is anyway allowed and must be connected on site with the suitable terminals available in the electric board Q of the unit (see wiring diagram enclosed to the unit). - Liebert PDX - PD

47 Heat Rejections (W - F - H versions) he axial fans are equipped with protection grid and are statically and dynamically balanced; they can guarantee high efficiency and a low emitted noise level (above all in the low noise version); further, they are equipped with motors able to operate within a wide range of outdoor working temperatures. Protection degree IP. Single-phase fans feature an electric condenser incorporated in the terminal board. Heat exchanger with oval-geometry tubes ensuring the best air flow and thus an increase in the efficiency of the heat exchange, for a lower emitted noise level. ubes are in copper and fins in aluminum, with wide heat exchange surface. Upon request (optional), the unit can be ordered with fins in epoxy-coated aluminum, with a better protection. he coil manifolds are in copper, with flanged connections in ISI 0 stainless steel for the models with three-phase power supply and male gas threaded connections for the single-phase models. the power supply is: 0 V single phase 0 Hz in the ESM models (standard noise level) and ELM models (low noise level). 00 V three-phase 0 Hz in the ES models (standard noise level) and EL models (low noise level). Electrical boxes and accessories are water proof IP. he frame is made up of a sturdy structure in galvanized steel, totally painted. he units are equipped with protection electric board Q, with main disconnector and safety device for fan motors. he most important technical data are gathered in ab. f. ests on thermal performance have been carried out at IMQ laboratories, according to the norm UNI EN 0:000, at the following special operating conditions: ir inlet = C Water inlet = C Water outlet = 0 C Sound pressure levels have been evaluated according to the norm EN, at a 0-m distance, with free field. he working pressure depends on the circuit where the Dry Cooler is connected. Dry Cooler max working pressure = bar. ll Dry Coolers are CE marking. Dry Cooler units are conform to the following directives: 00//EC; 00/0/EC; 00/9/EC; 9//EC. ab. e - Coupling of Dry Coolers Model External temperature up to 0 o C External temperature up to o C External temperature up to 0 o C Standard Low noise Standard Low noise Standard Low noise PX0xW/F/H x ES0 x ELM0 x ES00 x EL00 x ES00 x EL0 PX0xW x ES0 x ELM0 x ES00 x EL00 x ES00 x EL0 PX0xW/F/H x ES0 x ELM0 x ES00 x EL0 x ES00 x EL0 PX0xW/F/H x ES00 x EL00 x ES00 x EL0 x ES00 x EL0 PX0xW x ES00 x EL00 x ES00 x EL0 x ES00 x EL0 PX0xW/F/H x ES0 x ELM0 x ES00 x EL00 x ES00 x EL0 PX0xW/F/H x ES00 x EL00 x ES00 x EL0 x ES00 x EL0 PX0xW/F/H x ES00 x EL0 x ES00 x EL0 x ES00 x EL0 PX0xW x ES00 x EL0 x ES00 x EL0 x ES x EL0 PX0xW/F/H x ES00 x EL0 x ES00 x EL0 x ES00 x EL00 PX0xW/F/H x ES00 x EL0 x ES00 x EL0 x ES x EL0 PX09xW/F/H x ES00 x EL0 x ES00 x EL0 x ES x EL0 PX0xW/F/H x ES00 x EL0 x ES00 x EL00 x ES x EL0 PX0xW x ES00 x EL0 x ES x EL00 x ES0 x EL0 PX09xW x ES00 x EL00 x ES00 x EL0 x ES00 x EL0 PX09xW x ES00 x EL0 x ES00 x EL0 x ES x EL0 he table shows the recoended combinations of the Dry Coolers Liebert HPD with the air conditioners Liebert PDX, according to the external air temperature. he combinations have been evaluated considering a mixture of water and ethylene glycol up to 0% as thermal exchange fluid. he above indications are approximate and must be checked on the basis of other specific operating conditions. For operating conditions other than those indicated in the table, refer to the New Hirating calculation software and to the Dry Coolers User Manual. Liebert PDX - PD

48 Heat Rejections (W - F - H versions) ab. f - echnical data and performance of Dry Coolers Standard Model Duty (a) Performances Electric data Overall dimensions ir flow Noise level (c) Supply Number of fans otal absorbed power kw m /h db() V/ph/Hz nº kw ESM // ESM // ESM // ESM // ES // ES // ES // ES // ES // ES // ES // ES // ES // ES // ES // ES // Width Depth Height (b) Low Noise Model Duty (a) Performances Electric data Overall dimensions ir flow Noise level (c) Supply Number of fans otal absorbed power Width Depth Height (b) kw m /h db() V/ph/Hz nº kw ELM // ELM // ELM // ELM // ELM // EL // EL // EL // EL // EL // EL // EL // EL // EL // EL // EL // (a): at the following operative conditions: outdoor temperature = C, inlet/outlet water temperature = C/0 C, fluid is pure water, slm zero meters. For different conditions refer to NewHirating program and to the Dry Coolers User Manual. (b): vertical flow installation. (c): sound pressure level, free field, at 0 m distance, according to EN. - Liebert PDX - PD

49 irflow characteristics irflow characteristics Useful available heads ab. a - PXxxx /W series, basic fan module Upflow Up Down he tables give the available and allowed external static pressure against airflow at different EC Fan modulation. ll units are considered in standard configuration with clean F air filters. he Liebert PDX units are supplied with electric fans sized for 0 Pa vailable External Static Pressure (ESP) for the models Up and Down, 0 Pa for the models Upflow and 0 Pa for Frontal. he nominal airflow of all units can be changed via icom control. Note: he EC Fan modulation could slightly differ from the EC Fan voltage signal. MODELS PX0 PX0 PX0 PX0 PX0 PX0 PX0 PX0 Power supply voltage V/Ph/Hz 00 ±0% / / 0 Nominal air flow m /h nominal airflow Pa EC fan modulation % Max ESP available@ nominal airflow Pa 9 EC fan modulation % Max. airflow (@ 00%, nominal ESP) m /h 0 0 Nominal air flow m /h nominal airflow Pa EC fan modulation % Max ESP available@ nominal airflow Pa EC fan modulation % Max. airflow (@ 00%, nominal ESP) m /h Nominal air flow m /h nominal airflow Pa EC fan modulation % 90 9 Max ESP available@ nominal airflow Pa EC fan modulation % Max. airflow (@ 00%, nominal ESP) m /h Frontal/ Up Front ir Delivery Nominal air flow m /h nominal airflow Pa EC fan modulation % Max ESP available@ nominalairflow Pa EC fan modulation % Max. airflow (@ 00%, nominal ESP) m /h MODELS PX0 PX0 PX0 PX09 PX0 PX0 Power supply voltage V/Ph/Hz 00 ±0% / / 0 Nominal air flow m /h nominal airflow Pa EC fan modulation % Max ESP available@ nominal airflow Pa EC fan modulation % Max. airflow (@ 00%, nominal ESP) m /h - 09 Nominal air flow m /h nominal airflow Pa EC fan modulation % Max ESP available@ nominal airflow Pa EC fan modulation % Max. airflow (@ 00%, nominal ESP) m /h Nominal air flow m /h nominal airflow Pa EC fan modulation % Max ESP available@ nominal airflow Pa EC fan modulation % Max. airflow (@ 00%, nominal ESP) m /h Upflow Up Down Frontal/ Up Front ir Delivery Nominal air flow m /h nominal airflow Pa EC fan modulation % Max ESP available@ nominal airflow Pa EC fan modulation % Max. airflow (@ 00%, nominal ESP) m /h 90 9 PX09 EX PX09 EX Liebert PDX - PD

50 irflow characteristics ab. b - PXxxx /W series, premium fan module MODELS PX0 PX0 PX0 PX0 PX0 PX0 PX0 PX0 Power supply voltage V/Ph/Hz 00 ±0% / / 0 Nominal air flow m /h nominal airflow Pa EC fan modulation % 9 Max ESP available@ nominal airflow Pa EC fan modulation % Max. airflow (@ 00%, nominal ESP) m /h Nominal air flow m /h nominal airflow Pa EC fan modulation % Max ESP available@ nominal airflow Pa EC fan modulation % Max. airflow (@ 00%, nominal ESP) m /h Upflow Up Down Frontal/ Up Front ir Delivery Nominal air flow m /h nominal airflow Pa EC fan modulation % Max ESP available@ nominal airflow Pa 0 EC fan modulation % Max. airflow (@ 00%, nominal ESP) m /h Nominal air flow m /h nominal airflow Pa EC fan modulation % 9 9 Max ESP available@ nominal airflow Pa EC fan modulation % Max. airflow (@ 00%, nominal ESP) m /h MODELS PX0 PX0 PX0 PX09 PX0 PX0 Power supply voltage V/Ph/Hz 00 ±0% / / 0 Nominal air flow m /h nominal airflow Pa EC fan modulation % Max ESP available@ nominal airflow Pa 9 9 EC fan modulation % Max. airflow (@ 00%, nominal ESP) m /h Nominal air flow m /h nominal airflow Pa EC fan modulation % Max ESP available@ nominal airflow Pa EC fan modulation % Max. airflow (@ 00%, nominal ESP) m /h 0 0 Upflow Up Down Frontal/ Up Front ir Delivery Nominal air flow m /h nominal airflow Pa EC fan modulation % Max ESP available@ nominal airflow Pa 9 99 EC fan modulation % Max. airflow (@ 00%, nominal ESP) m /h Nominal air flow m /h nominal airflow Pa EC fan modulation % 9 9 Max ESP available@ nominal airflow PX09 EX PX09 EX Pa 00 9 EC fan modulation % Max. airflow (@ 00%, nominal ESP) m /h 0 - Liebert PDX - PD

51 irflow characteristics ab. c - PXxxx F/D/H series, basic fan module MODELS PX0 PX0 PX0 PX0 PX0 PX0 PX0 PX0 PX09 PX0 Power supply voltage V/Ph/Hz 00 ±0% / / 0 Nominal air flow m /h nominal airflow Pa EC fan modulation % Max ESP available@ nominal airflow Pa EC fan modulation % Max. airflow (@ 00%, nominal ESP) m /h 0 09 Nominal air flow m /h nominal airflow Pa EC fan modulation % Max ESP available@ nominal airflow Pa EC fan modulation % Max. airflow (@ 00%, nominal ESP) m /h Nominal air flow m /h nominal airflow Pa EC fan modulation % Upflow Up Down Max ESP available@ nominal airflow Pa EC fan modulation % Max. airflow (@ 00%, nominal ESP) m /h Nominal air flow m /h Frontal nominal airflow Pa EC fan modulation % Max ESP available@ nominal airflow Pa EC fan modulation % Max. airflow (@ 00%, nominal ESP) m /h ab. d - PXxxx F/D/H series, premium fan module MODELS PX0 PX0 PX0 PX0 PX0 PX0 PX0 PX0 PX09 PX0 Power supply voltage V/Ph/Hz 00 ±0% / / 0 Nominal air flow m /h nominal airflow Pa EC fan modulation % Max ESP available@ nominal airflow Pa EC fan modulation % Max. airflow (@ 00%, nominal ESP) m /h Nominal air flow m /h nominal airflow Pa EC fan modulation % Max ESP available@ nominal airflow Pa EC fan modulation % Max. airflow (@ 00%, nominal ESP) m /h Upflow Up Down Nominal air flow m /h nominal airflow Pa EC fan modulation % Max ESP available@ nominal airflow Pa EC fan modulation % Max. airflow (@ 00%, nominal ESP) m /h Nominal air flow m /h Frontal nominal airflow Pa EC fan modulation % Max ESP available@ nominal airflow Pa EC fan modulation % Max. airflow (@ 00%, nominal ESP) m /h Liebert PDX - PD

52 Sound Pressure Level Sound Pressure Level Liebert PDX units have been designed with particular care for sound and vibration problems. he complete mechanical insulation of the ventilating section, combined with the special study of the aeraulic circuit as a consequence of accurate researches made in our thermodynamic laboratories and the oversizing of the components crossed by air offer the highest ventilation efficiency with the lowest sound emission. Sound emission spectra ll tests are performed in our laboratories under the described conditions. he instrument is placed in (F) point, at. m from the ground in front of the machine at m distance. est conditions: unit with underflow air discharge and 0 Pa available external static pressure; Upflow unit with ducted air discharge and 0 Pa available external static pressure. Nominal air flow with clean F filters. Premium Fan Module, Digital Scroll Cooling cooling capacity. mbient temperature C and relative humidity 0%. Condensing temperature C. he noise levels refer to free field conditions. he following tables show sound levels for every octave band frequency. he data are referred to the main used configurations; for different configurations consult Hirating software m. m F - Liebert PDX - PD

53 Sound Pressure Level Sound emission spectra he following tables show sound levels for every octave band frequency. ab. a - /W versions and Upflow configuration, Standard Height, Digital Scroll Cooling 00% cooling capacity, Premium Fan Module, nominal airflow MODEL Mode Level PX0x/W PX0x/W PX0x/W PX0x/W PX0x/W PX0x/W PX0x/W PX0x/W PX0x/W PX0x/W PX0x/W PX09x/W PX0x/W PX0x/W Octave band frequency (Hz) Sound Level [d()] () SPL () SPL () PWL () SPL () SPL () PWL () SPL () SPL () PWL () SPL () SPL () PWL () SPL () SPL () PWL () SPL () SPL () PWL () SPL () SPL () PWL () SPL () SPL () PWL () SPL () SPL () PWL () SPL () SPL () PWL () SPL () SPL () PWL () SPL () SPL () PWL () SPL () SPL () PWL () SPL () SPL () PWL LEGEND he sound levels global and for each octave band are expressed in d with a tolerance of (-0/+) d. () Only ventilation (0 Pa available external static pressure), m in front of the unit and. m height, in free field conditions. () Working compressor (0 Pa available external static pressure), m in front of the unit and. m height, in free field conditions. () Working compressor, on discharge side. Level SPL sound pressure level PWL sound power level Liebert PDX - PD

54 Sound Pressure Level ab. b - /W versions and Upflow configuration, Extended Height, Digital Scroll Cooling 00% cooling capacity, Premium Fan Module, nominal airflow MODEL Mode Level PX09x/W PX09x/W Octave band frequency (Hz) Sound Level [d()] () SPL () SPL () PWL () SPL () SPL () PWL LEGEND he sound levels global and for each octave band are expressed in d with a tolerance of (-0/+) d. () Only ventilation (0 Pa available external static pressure), m in front of the unit and. m height, in free field conditions. () Working compressor (0 Pa available external static pressure), m in front of the unit and. m height, in free field conditions. () Working compressor, on discharge side. Level SPL sound pressure level PWL sound power level ab. c - F/D/H versions and Uplow configuration, Standard Height, Digital Scroll Cooling 00% cooling capacity, Premium Fan Module, nominal airflow MODEL Mode Level Octave band frequency (Hz) Sound Level [d()] () SPL PX0xF/D/H () SPL () PWL () SPL PX0xF/D/H () SPL () PWL () SPL PX0xF/D/H () SPL () PWL () SPL PX0xF/D/H () SPL () PWL () SPL PX0xF/D/H () SPL () PWL () SPL PX0xF/D/H () SPL () PWL () SPL PX0xF/D/H () SPL () PWL () SPL PX0xF/D/H () SPL () PWL () SPL PX09xF/D/H () SPL () PWL () SPL PX0xF/D/H () SPL () PWL LEGEND he sound levels global and for each octave band are expressed in d with a tolerance of (-0/+) d. () Only ventilation (0 Pa available external static pressure), m in front of the unit and. m height, in free field conditions. () Working compressor (0 Pa available external static pressure), m in front of the unit and. m height, in free field conditions. () Working compressor, on discharge side. Level SPL sound pressure level PWL sound power level - Liebert PDX - PD

55 Sound Pressure Level ab. d - /W versions and Up configuration, Standard Height, Digital Scroll Cooling 00% cooling capacity, Premium Fan Module, nominal airflow MODEL Mode Level PX0x/W PX0x/W PX0x/W PX0x/W PX0x/W PX0x/W PX0x/W PX0x/W PX0x/W PX0x/W PX0x/W PX09x/W PX0x/W PX0x/W Octave band frequency (Hz) Sound Level [d()] () SPL () SPL () PWL () SPL () SPL () PWL () SPL () SPL () PWL () SPL () SPL () PWL () SPL () SPL () PWL () SPL () SPL () PWL () SPL () SPL () PWL () SPL () SPL () PWL () SPL () SPL () PWL () SPL () SPL () PWL () SPL () SPL () PWL () SPL () SPL () PWL () SPL () SPL () PWL () SPL () SPL () PWL LEGEND he sound levels global and for each octave band are expressed in d with a tolerance of (-0/+) d. () Only ventilation (0 Pa available external static pressure), m in front of the unit and. m height, in free field conditions. () Working compressor (0 Pa available external static pressure), m in front of the unit and. m height, in free field conditions. () Working compressor, on discharge side. Level SPL sound pressure level PWL sound power level Liebert PDX - PD

56 Sound Pressure Level ab. e - /W versions and Down configuration, Extended Height, Digital Scroll Cooling 00% cooling capacity, Premium Fan Module, nominal airflow MODEL Mode Level PX09x/W PX09x/W Octave band frequency (Hz) Sound Level [d()] () SPL () SPL () PWL () SPL () SPL () PWL LEGEND he sound levels global and for each octave band are expressed in d with a tolerance of (-0/+) d. () Only ventilation (0 Pa available external static pressure), m in front of the unit and. m height, in free field conditions. () Working compressor (0 Pa available external static pressure), m in front of the unit and. m height, in free field conditions. () Working compressor, on discharge side. Level SPL sound pressure level PWL sound power level ab. f - F/D/H versions and Up configuration, Standard Height, Digital Scroll Cooling 00% cooling capacity, Premium Fan Module, nominal airflow MODEL Mode Level Octave band frequency (Hz) Sound Level [d()] () SPL PX0xF/D/H () SPL () PWL () SPL PX0xF/D/H () SPL () PWL () SPL PX0xF/D/H () SPL () PWL () SPL PX0xF/D/H () SPL () PWL () SPL PX0xF/D/H () SPL () PWL () SPL PX0xF/D/H () SPL () PWL () SPL PX0xF/D/H () SPL () PWL () SPL PX0xF/D/H () SPL () PWL () SPL PX09xF/D/H () SPL () PWL () SPL PX0xF/D/H () SPL () PWL LEGEND he sound levels global and for each octave band are expressed in d with a tolerance of (-0/+) d. () Only ventilation (0 Pa available external static pressure), m in front of the unit and. m height, in free field conditions. () Working compressor (0 Pa available external static pressure), m in front of the unit and. m height, in free field conditions. () Working compressor, on discharge side. Level SPL sound pressure level PWL sound power level - Liebert PDX - PD

57 Sound Pressure Level Plenum with silencing cartridges (accessory) hese are special cartridges made of self-extinguishing material with a high noise attenuation capacity. hey are guaranteed against disintegration and release of particles do to friction of the air. It is possible to install the supplied plenum 00 height with one row of cartridges over the unit. Despite a small additional pressure drop, these cartridges provide a remarkable sound power level reduction. ab. g - Features of silencing cartridges Models Dimensions Free Section Cartridge Number [] [] PX0-PX0-PX09 00 x 9 x x 00 PX0-PX0-PX0-PX0 PX0-PX0-PX0-PX09 00 x 9 x x 00 PX0-PX0-PX09 PX0-PX0 00 x 9 x x 00 ab. h - ttenuation in d silencing cartridges ttenuation in d at different frequency values (Hz) row no ab. i - Pressure drops silencing cartridges Pressure drops (Pa) for each module at different air flows (m /s) row no ab. j - pproximate variations of Sound Pressure Level Variations compared to values measured without noise reduction duct: free discharge (for Upflow units) or free suction ( units). Position F: meters from the front,. meter from the ground Position D: meter from the front, from the top m D m F. m Unit Configuration Plenum Height Cartridge Rows Position Number F D Up d -.0 d Upflow d -.0 d Liebert PDX - PD

58 echnical Specifications echnicalspecifications Fans (CRC unit) he units install innovating EC fans incorporating an impeller with curved blades corrosion resistant made of fibreglass plastic. his new technology allows keeping the current high-strength of aluminium alloy adding the benefits of light weight and full flexibility on blade design of the new material. he good dampening behaviour of the plastic also helps to reduce noise emissions. he optimised aerodynamic design permits achieving high energy efficiency and a reduced noise level. Other benefits came form the EC motors, it is comparable to the DC brush-less motor, except that the magnetic field is produced by permanent magnets in the rotor; the coutation is done electronically and therefore without wear. he EC Fans are controlled via a linear interface, 0-0Vdc, through icom. he motor is three-phase with IP protection; provided with internal thermal protection. he fan wheel is statically and dynamically balanced; the bearings are self-lubricating. Compressor Scroll compressors. he scroll is a simple compression concept first patented in 90. scroll is an involute spiral which, when matched with a mating scroll form, generates a series of crescent shaped gas pockets between the two members. During compression, one scroll remains stationary (fixed scroll) while the other form (orbiting scroll) is allowed to orbit (but not rotate) around the first form. s this motion occurs, the pockets between the two forms are slowly pushed to the center of the two scrolls while simultaneously being reduced in volume. When the pocket reaches the center of the scroll form, the gas, which is now at a high pressure, is discharged out of a port located at the center. During compression, several pockets are being compressed simultaneously, resulting in a very smooth process. oth the suction process (outer portion of the scroll members) and the discharge process (inner portion) are continuous. High COP (Coefficient Of Performance) High MF (Mean ime etween Failure) Low sound level Vibration-damped Provided with internal thermal protection Low pickup current (equalization of the internal pressures). Digital Scroll compressor (Digit ) When it is mandatory to have a precise and continuous equivalence between the load and the cooling capacity. We get this through the innovative compressor: the Copeland Digital Scroll. It uses a simple and effective method to modulate the capacity, giving unparalleled performance in the modulation field. he controlled separation of the scrolls is achieved using a solenoid valve and a bypass connection between the discharge chamber and the gas intake (See Fig..a). he scrolls are designed so that the upper scroll can separate from the bottom scroll by vertically. piston is attached on top of the upper scroll and will lift up the upper scroll when it moves up. When the solenoid valve is closed, the Digital Scroll operates as a normal scroll compressor and the compressed gas is discharged at high pressure through the normal piping. When the solenoid valve is opened, the discharge chamber and intake gas pressure becomes connected, thereby releasing some of the discharge pressure. his leads to less pressure holding the piston down thereby causing the piston to shift upwards, which in turn lifts the upper scroll. Once the scrolls separate, any gas passing through is no longer compressed. he Digital Scroll operates in two stages - the "Loaded state", when the solenoid valve is normally closed and "Unloaded state", when the solenoid valve is open. During the loaded state the compressor operates like a standard scroll and delivers full capacity and mass flow. However, during the unloaded state, there is no capacity and no mass flow through the compressor. - Liebert PDX - PD

59 echnical Specifications Fig..a t this stage, let us introduce the concept of a cycle time. cycle time consists of a "Loaded State" time and "Unloaded State" time. he duration of these -time segments determine the capacity modulation of the compressor. Example: In a 0 seconds cycle time, if the loaded state time is 0 seconds and the unloaded state time is 0 seconds, the compressor modulation is 0%. If for the same cycle time, the loaded state time is seconds and the unloaded state time is seconds, the compressor modulation is %. he capacity is a time averaged suation of the loaded state and unloaded state. y varying the loaded state time and unloaded state time, any capacity between 0% and 00% can be delivered by the compressor. Hence, the Copeland Digital Scroll can achieve a continuous modulation of C capacity to suit the system's needs precisely. We could vary the cycle time and still achieve the same effective capacity, but Copeland and Liebert have done extensive testing to optimize the cycle time in this application. Electronic Expansion Valve (Digit ) he valve is designed for modulating control of refrigerant circuits with highspeed and high precision. he EEV provides superior performance compared to a hermostatic Expansion Valve (XV), due to: Precise flow control Positioning time EEV ensures a better control on super heating at the end of the evaporator, ensuring at the same time that compressor will never be filled by liquid from the 0% to 0% of its nominal capacity, instead a mechanical one cannot ensure it. It has to be calibrated and then it will work properly but only around the calibration point. his means that a XV works better (i.e. better control, longer life) with a condensing pressure as much as possible constant. For such reason with XV the condensing temperature is kept around C as set point. ut during the coldest period the condensing temperature can be lowered and the electronic expansion valve adapts to this new situation. his permits an increase of the cooling capacity of the unit, a decrease of the unit power input and so increase the energy efficiency of the entire Liebert PDX unit. Liebert PDX allows having an option the EEV both on Standard Scroll and on Digital Scroll. he choice is driven by the application: Only temperature control - or wide range or Humidity band In this case the EEV gives a great efficiency effects both with Standard and Digital Scroll technology. o get the biggest advantage, a different pressure set point can be used for the fan speed controller of the Liebert remote condenser. Close Humidity control Often, even the XV valve allows to get good results, mainly thanks to the Digital Scroll modulation. Digital range - Major enefits Emerson Network Power is proud to offer a new possibility to have the best technologic evolutions in your cooling unit, adding to an already optimum product a wide range of benefits: Modulation (as explained in Digital Scroll Chapter): Perfect match between Cooling Capacity and Heat Load. Lower power input at partial load. Quick adaptation to changing heat load. Possibility to size cooling system to overcome future heat load growth Liebert PDX - PD

60 echnical Specifications Precision Control: More precise room temperature control. Once you make a direct comparisons between standard units using standard scroll compressors and Liebert PDX, is necessary to notice that Liebert PDX has a very high precision in control room temperature; so all the advantages exponentially increase comparing Liebert PDX to a standard unit with the same tolerances on controlling the temperature. Fig..b In fact to guarantee the same precision, standard scroll technology has to use additional technologies, like hot gas by pass or hot gas injection, and others, to avoid the compressor shut off and to avoid loosing temperature control. ll these techniques are very energy expensive and for this reason we can say that Liebert PDX offers more requiring less. vailability & Reliability: Less number of start/stop cycling means longer unit life. s described previously, at partial load, a Digital Scroll does not work with ON OFF configuration. his avoids peaks in adsorbed power and reduces stress on components. his increases the life of the unit, greatly reducing failure due to fatigue. Wide operational limits for higher availability. o maximise the possible advantages coming from the thermodynamic functioning of Liebert PDX, Emerson Network Power has developed a special software; with an additional pressure transducer the control, when external air temperature increases over standard functioning limits, coands the compressor to modulate his capacity. Forcing the condensing temperature to decrease under the limit, even when at partial load, the unit guarantees refrigeration; standard units in the same condition would fail. So when you size your requested unit you consider the worst external conditions; it can happen that occasionally during the year it will be hotter than your design ambient temperature. In this case a standard unit will shut down due to high condensing temperatures, leaving your Data Center without cooling when the requirement is at its highest, however your Liebert PDX will guarantee a partial cooling capacity. So System availability is guaranteed even during extreme operating conditions. Increased Efficiency due to: COP and SHR Effect. t partial load alternation between loaded and unloaded states involves a reduction on nominal mass flow both on the evaporator and on the condenser. his gives digital technology two important thermodynamic advantages: higher evaporating temperatures and lower condensing temperatures. hese are both important characteristics, the evaporating temperature is directly related to cooling capacity, and a higher evaporating temperature means a higher cooling capacity. Condensing temperature is directly related to power input, and lower it is the lower the power consumption of the compressor. Consequently the Digital scroll increases its COP at partial load (higher then %) in fact the higher evaporating temperature and lower condensing temperature gives higher cooling capacity and lower power input. EEV Effect (as explained in the relevant chapter). EC Fan Effect (as explained in the relevant chapter). hanks to all these effects we can have a reduction up to 0% on the yearly energy consumption and a return of investment lower then half a year (considering a comparison versus a standard Room Cooling Unit with standard Scroll, standard C Fan and standard hermostatic Expansion Valve, placed in a city in the Central Europe). - Liebert PDX - PD

61 echnical Specifications Refrigerant he units are designed for being used with refrigerant R0. Coils DX refrigerant / Chilled water/room air High frontal surface. Made of copper pipes and aluminium fins. Fins treated with hydrofile styrol acrylic paints to withstand corrosive atmospheres. Low pressure drop. High SHR (Sensible Heat Ratio). In dual circuit units, the dual stage coil increases the SHR, at partial load the efficiency is strongly increased due to the use of the total amount of airflow and frontal coil surface. Frame and panels he sheet steel structure, painted with epoxy-polyester powders, is assembled by stainless steel rivets; the paneling system ensures higher stiffness; there will also be some pluggings for guaranteeing both safety and high acoustic absorption. he frontal panel is assembled on hinges to make the access easier; this can be opened by the fast closing lock. he rear and side panels are screwed to the supports. he rear panel is screwed directly to the frame. he panels are lined with thermoacoustic insulating material - class 0 (ISO.) with thermal conductivity 0.0 W/mK and density from 0 to 0 kg/m. he internal sheet metal parts are made of hot-dip galvanized steel in order to provide corrosion protection and avoid zinc whiskers growing. Electric panel he electric panel is housed in the frontal part of the unit, behind the right door. It is insulated against the air flow and protected by a cover, so as to avoid tampering by non-authorized personnel and to protect the electric panel parts supplied with a voltage higher than V. Once open the electrical panel could be rotate on the right to make the installation procedure and maintenance easier. he electric panel complies with the norm 0- IEC. he air conditioners have been provided for operating at 00 V //0 Hz+N+G (as alternative execution, the version with 0 V//0Hz + G can be supplied in the majority of cases). Magnetothermal switches are supplied as protection of every electric component. single-phase transformer has been provided for supplying power to the secondary circuit at V. here will be an automatic start-up after a possible stop due to power supply lack. dditional terminals for remote start-up and carry of some operating conditions (fans and compressors) or connection of additional devices (Liquistat, Firestat, Smokestat, clogged filters) are set in series on the terminal panel of the electric panel. On the terminal panel there is also a clean contact for the remote signalling of the general alarm. he panels are lined with thermoacoustic insulating material - class 0 (ISO.). Humidification (Digit ) Liebert PDX offers the possibility to choose between Electrode, Ultrasonic and Infrared Humidifiers. Depending on which is the priority between the water characteristics and the efficiency Liebert PDX is able to give the right solution: Ultrasonic Humidifier: op Efficient solution to manage the humidification process. he Ultrasonic Humidifier needs a correct water treatment to allow the system work properly. Infrared Humidifier: this is the perfect solution whenever there is not the possibility to have a high quality of water. In fact Infrared Humidifier does not suffer any performance decade based on Liebert PDX - PD

62 echnical Specifications water conductivity (as happens for coon electrode solution); additionally it does not require a specific water treatment. Electrode Humidifier: this is the most coon solution in European Data Center, providing efficiency level once it works with the correct water conductivity. For complete details about humidifiers solution see Chapter. Electrical Heaters (Digit ) for Heating Mode and reheating in dehumidification mode. stage of electrical heater is available for each Liebert PDX. If necessary for units with or fans it is possible install as well a second stage of electrical heater to increase significantly the heating power. Each stage of heaters are made of finned armored stainless steel ISI 0. to maintain a low surfaces power density. Ionization effects are eliminated owing to the low heater surface temperature. here an ON-OFF type electronic temperature controller, a safety thermostat with manual reset, a circuit breaker for short-circuit protection and harness protection from possible accidental contact. he electrical heating can work as well the dehumidification system is activated; in this way humidity sensor and indicator are necessary and provided on request. Electrical heating can be installed combined with hot gas or hot water heating. ab. a - Features of Electrical heating system at nominal airflow ELECRICL HEING Model Std. Capacity Opt. High Capacity FL [] nominal power [kw] FL [] (00V / Ph / 0Hz) PX0 PX0 - - PX09 nominal power [kw] PX0. * * PX0. * * PX0. PX0. * * PX0. * * PX0. PX PX09.. ** ** PX0. ***. ***. ** ** PX0. ***. ***. ** ** PX09. ***. ***. ** ** PX0. ***. *** PX0.. * Not available with asic Fan Module. ** With asic Fan Module. *** With Premium Fan Module. - Liebert PDX - PD

63 echnical Specifications Hot Water Coil (Digit ) for heating and reheating mode and dehumidification system he hot water heating is a copper pipes and aluminium fins coil, with one row, test pressure 0 bar and includes an exhaust valve. three-way on-off valve directly driven by the microprocessor controller is supplied as standard. hot water thermostat (provided by the customer) is installed to indicate the presence of hot water at the correct temperature. he heating system can work even if the dehumidification system is activated; in this case humidity sensor and an indicator are necessary and are provided on request. Note: Hot water power in F, D, H units could slightly differ from hot water power in, W units. ab. b - Features of hot water reheat system at nominal airflow, Premium Fan Module MODELS PX0 PX0 PX0 PX0 PX0 PX0 PX0 PX0 rows no. surface m indoor temp. C, 0% R.H.; water inlet/outlet temperature 0/ C Power (re-heating) kw water flow l/s coil side pressure drops kpa total pressure drops kpa MODELS PX0 PX0 PX0 PX09 PX0 PX0 rows no. surface m indoor temp. C, 0% R.H.; water inlet/outlet temperature 0/ C Power (re-heating) kw water flow l/s coil side pressure drops kpa total pressure drops kpa PX09 EX PX09 EX Hot Gas Coil (Digit ) DX units for Reheating Mode only Liebert PDX can be supplied with a reheating system that uses the heat which is normally transferred to the condenser, thus saving energy. his system is activated during the dehumidification phase, when the temperature is below its setpoint. control valve prevents the refrigerant from flowing into the reheat coil when not required. Hot gas reheat is available as an alternative to hot water reheat. Note: Reheating capacity in F, D, H units could slightly differ from reheating capacity in, W units. ab. c - Features of hot gas reheat system at nominal airflow, Premium Fan Module MODELS U/O /W/F/D/H PX0 PX0 PX0 PX0 PX0 PX0 PX0 PX0 rows no. surface m Reheating capacity (Scroll Cooling System) (at C, 0%, kw condensing temperature C) Reheating capacity (Digital Scroll Cooling System) (at C, 0%, condensing temperature C) kw Liebert PDX - PD

64 echnical Specifications MODELS PX09 PX09 U/O /W/F/D/H PX0 PX0 PX0 PX09 PX0 EX EX rows no. surface m Reheating capacity (Scroll Cooling System) (at C, 0%, condensing temperature kw C) Reheating capacity (Digital Scroll Cooling System) (at C, 0%, condensing temperature C) kw ab. d - Reheating mode during the dehumidification First step Second step hird step Hot gas reheat Hot gas reheat + Heaters first step Hot gas reheat + Heaters total ir filters Removable filters are installed inside the unit before heat exchanger and fans. he F standard filters made by paper material and are completely recyclable. dditional high efficiency filters F, F are available as optional. For complete details about filter sections see chapter 9. Dual Power Supply (Digit ) Liebert PDX offers as option the possibility to have dual power supplies in order to have the units up and running once the main power supply fails. Liebert PDX allows choosing between different solutions: Dual Power Supply Parallel separate power supplies: during normal working mode both are present, during emergency situation only the main one. his means that during emergency mode ventilation redundancy is granted disabling heating, humidifying and compressor power input. his last option allows during emergency mode to reduce unit power absorption and therefore Genset or UPS sizes. Dual Power Supply lternate separate power supplies: each power supply is able to completely feed the unit. (S) lternate ransfer Switch makes the switch in case of main line failure. In case of failure of the main supply the unit automatically switches to the second power supply. his allows to have a complete power supply redundancy or in case needed to have during emergency mode full cooling redundancy disabling heating and humidifying. his last option allows during emergency mode to reduce unit power absorption and therefore Genset or UPS sizes. he solution allows having the following benefits: possibility to have together utomatic or Manual changeover. transfer switching time between power and power,,sec. Dual Power Supply lternate Premium Version with UPS for icom board he switch between one power supply and the other makes the units restarting as it pass through the off position. he solution with icom Control kept alive under UPS allows the control of the unit to stay powered. his means that the unit is not rebooting and so iediately ready again to cool the room. he solution with integrated UPS for the icom Control keeps icom alive for xx minutes, so even if both power supplies are missing this allow a unit to be ready to continue working once one of the two will come back. - Liebert PDX - PD

65 echnical Specifications Smart isle M Solution (Digit ) o drastically reduce the energy consumption and thus truly optimize the investment in the installation, Emerson Network Power offers the solution that will exactly adjust the cooling capacity to the needs of the servers. his solution includes the separation of the cold and hot zone through a cold aisle, or hot aisle, containment. his allows the cooling units to operate with higher air temperature therefore increasing both capacity and efficiency. he solution is designed to have the latest cooling unit (compressor modulating technology with digital scroll, EC fan, Electronic Expansion Valve) with the best control for the Data Center application and well optimized distribution of the air and of the temperatures. he proposal consists of precision control of temperature, humidity and air flow rate at the server level to ensure exactly the airflow required by the server at the conditions they need to produce maximum life and highest reliability. he solution is Smart isle M control for the cold aisle containment, Digital ir cooled modulating compressor in a unit with EC Fan to have all the best technologies in the market controlled in the most efficient way. Liebert PDX as part of Smart isle M cooling solution is the best answer to ensure the right cooling minimizing the cooling operating costs. he Liebert PDX Smart isle M comes with return and supply sensors, remote sensors as well as ready to drive a damper to aeraulically insulate the units not working and a button to force the unit on full cooling for emergency situations. Emerson Network Power's cold aisle containment solution can achieve an energy saving of up to % higher than other manufacturers' cooling units with standard technology. he unit will drive the compressor(s) based on the supply temperature, while the airflow will be driven based upon the patented control method on the remote temperature and humidity sensors installed on the calibrated holes of the Smart isle M. his allows equalizing the pressures within inside and outside the closed aisle and therefore matching exactly the airflow required by the servers. his means higher availability for the servers' equipment that will be working with the right airflow and the right temperature and minimum power consumption as the unit will not waste any single watt on not needed cooling. Fig..c Remote temperature and humidity sensor) Liebert ECONOMIZER Solution (Digit ) he usage of direct freecooling is more and more coon on Data Center applications. Compared to other applications the Data Center application still marks a difference on the usage of the Direct Freecooling. he discriminating factor is the humidity control. In fact, the solution with the direct Freecooling can be limited not only by the temperatures outside but in particular by the humidity levels. Dry ir can absorb different quantities of vapor depending Liebert PDX - PD

66 echnical Specifications on its temperature. t a given temperature there is a maximum quantity of grams of vapour by each kilogram that can be taken by the air. More vapour would become solid as liquid water. Given a specific condition the air will have a temperature and a quantity of humidity (this is defined as absolute humidity). If we compare this level of humidity with the maximum level that the air at that temperature can absorb we have the relative humidity. (his from a logic point of view on the physics: Relative humidity is the ratio of the partial pressure of water vapor in an air-water mixture to the saturated vapor pressure of water at a prescribed temperature wikipedia). s example: at C the maximum level of humidity is,9 g/kg. In case of C 0% the absolute humidity is. g/kg. he hotter is the air the more humidity it can absorb. hese rules are clearly represented on the physics using the psychrometric chart that is presenting the different conditions of temperature and humidity at the pressure of sea level. he behaviour of fresh air freecooling is strongly linked to these physic rules. In fact during winter time the air is cold and when is cold it can have a maximum humidity which is extremely low. (s example at C the maximum level of humidity is already below the SHRE recoended limit and as matter of comparison it corresponds to same absolute humidity that you have at C %). herefore in such times you enter in the Data Center very dry air thus requiring the use of the humidifier (element with high energy consumption) in compensation. Similarly, in wet periods in the spring / autumn, the risk is opposite, that you enter in the data center air that requires dehumidification. (s example air condition of C 00% typical foggy condition corresponds to the absolute humidity level that you have at C 0%). n efficient control for data centers is then what gives you the possibility to set limits that allow you to choose whether or not to use the outside air to avoid using it when energy is not convenient. his is Liebert Economizer. It allows setting limits in terms of both temperature and humidity and use the air only when it makes sense from all energy points of view. Fig..d Sample of settable Economizer working range So Emerson Network Power proposes a complete solution of direct freecooling specifically thought and developed to address data center needs. he solution includes in the unit Return and Supply temperature sensors, an external temperature and humidity sensor to check external absolute humidity and solution to correctly drive the dampers installed in a plenum above the unit for the mixing of the external and return air. icom control therefore if external temperature and humidity are within the correct range allows the direct freecooling and complete the required acting the compressors. For digital scroll there is the great opportunity to exploit the modulation capacity to always provide exactly what is needed in terms of modulation. Whenever the cooling from outside is enough to fully cool the room, the unit will work on pure freecooling mode. he solution is therefore optimizing to provide the highest saving and the biggest availability thanks to the full Direct Expansion back up provided by the compressor(s). - 9 Liebert PDX - PD

67 9 Filter section Filter section Standard filters Removable filters are installed inside the unit before fan and heat exchanger. he standard filtration grade is F (CEN EN9 --- respectively corresponding to EU according to Eurovent EU/). he filter pleated structure gives high filtration efficiency, low pressure drop and permit to use the filter without metallic or cardboard frame. he filter media is composed by fibre and latex. High efficiency filters (accessory) n optional extension hood with high efficiency filters is available, filtration class F, F and F9 in accordance with the CEN EN 9 standard, are made of fibreglass filter media. he filters are placed in V sections with a solid external frame in polypropylene, and can withstand remarkable pressure and flow variations. hese filters will be installed within an additional duct on the unit top. he additional pressure drop in comparison with F sdt filters are indicated in the following graphs (ab c---h). For dimensions see Fig..a. Clogged filter alarm (Digit ) differential static pressure gauge after and before the filter gives a signal when the filter is dirty. Fresh air kit (accessory) he fresh air kit, optional, has a G class filter installed on the intake side of the fan and is connected to the unit with a 00 diameter plastic duct. s the fresh air intake is positioned close to the fan suction, it will easily mix the fresh air with the recirculation air. ir Filters general information Recently new test methods and configuration systems have been developed for all type of filters. In Europe, CEN is working to establish coon standards, in the United States SHRE Standards has been in use since 9 and replaced by NSI/SHRE So, in order to have a reference about different standards, see ab. 9a and ab 9b. here is no perfect correspondence between different standards, due to the different test methods, but the tables can be used as general guide. Liebert PDX --- PD

68 Filter section ab. 9a --- Comparison between air filter tests Eurovent /9 EN 9 EN verage rrestance * [SHRE Standard.---99] veragedustspotefficiency** [SHRE Standard.---99] Minimum Efficiency Reporting Value [SHRE ] [greater then or equal to] [less than] [greater than or equal to] [less than] EU G 0% % 0% --- EU G % 0% 0% EU G 0% 90% 0% EU G 90% 9% 0% 0% EU F 9% 9% 0% 0% EU F 99% 0% 0% EU F 99% 0% 90% --- EU F 99% 90% 9% --- EU9 F9 99% 9% * chieved filtering performance in accordance to gravimetric test method on a specific sample of dust. ** chieved filtering performance in accordance to a light transmission test methods, with natural atmospheric dust. ab. 9b --- pproximate efficiency versus particle size for typical air filters EFFICIENCY % Curves are approximation for general guidance only. Efficiency and arrestance per SHRE Std. test method [From SHRE Handbook, HVC Systems and Equipment]. PRICLE SIZE. MICROMERES Liebert PDX --- PD

69 Filter section High efficiency filters additional pressure drop ab. 9c --- Units PX : additional pressure drop high efficiency filter. additional pressure drop [Pa] PX ,0 0,0 00,0 0,0 F F F F9 00,0 0,0 0, air flow [m /h] ab. 9d --- Units PX : additional pressure drop high efficiency filter. additional pressure drop [Pa] PX ,0 0,0 00,0 0,0 F F F F9 00,0 0,0 0, air flow [m/h] ab. 9e --- Units PX : additional pressure drop high efficiency filter. additional pressure drop [Pa] PX ,0 0,0 00,0 0,0 F F F F9 00,0 0,0 0, air flow [m/h] Liebert PDX --- PD

70 0 Microprocessor Controls MicroprocessorControls icom Control Liebert PDX models are controlled by icom Large board. Fig. 0.a he control handles the operation of the Liebert PDX units with a special control algorithm, ensuring top reliability and maximum efficiency. he icom Large board (main board) is housed in the electrical panel and it could be connected to a remote display (supplied on request), to be installed in the container/room. he digit user interface is an inner display that permits an easy access to the unit parameters. Writing access is protected by a password. It features navigation push buttons and status leds. s optional is possible to have a large display that allows more functions and a more accurate monitoring (see paragraph CDL Graphic Display). Warnings and alarms activate a visual indicator and buzzer. ll settings are protected through a Level password system. Input for Remote unit On-Off and free contacts for simple remote monitoring of warnings and alarms are available. LN management: functions provided as standard include stand-by (in case of failure or overload of the unit in operation, the second one starts automatically), automatic rotation, and cascade (division of the load among several units, through split of the proportional band). utomatic restart is provided after a power failure. ab. 0a - echnical Data icom echnical Data icom Large Eprom Mbit + kbit Flash memory Mbit RM memory Mbit Microcontroller Coldfire Mbit nalogue Input x 0-0V,0-V,..0m (selectable) + PC/NC + NC Digital Input x opto-coupled nalogue Output x 0-0V Digital Output triacs output and relay output ime and date uffered by an LI battery Hirobus Lan connectors RJ sockets (for unit in LN, remote display) Ethernet network connectors RJ socket CN bus connectors RJ sockets Hironet connectors RJ9 socket for RS (direct connection to proprietary supervision) RS service port db9 socket 0 - Liebert PDX - PD

71 Microprocessor Controls CDL Graphic Display (option) Featuring up to days record of controlled parameters as well as the last 00 events occurred. Large graphic display (0 x 0 pixel). System Window: system operation status at a glance. Self-explanatory Icons: they are used for the Menu-Layout of the CDL icom. here are icom menus: user, service and advanced. Online Help: Every single parameter has its own multi-page explanation. Status Report of the latest 00 event-messages of the unit/system. Four different Graphic Data Records. Semi or Full Manual Mode software management including all safety devices. -Level Passwords system to protect all the settings. Ergonomic design for use also as portable device (start-up and "flying connections" by service personnel). Multi-language menu with on-the-fly language selection. echnical Data CDL Graphic Display - Microcontroller:... Coldfire bit - ime and date function buffered by LI-battery - Ethernet network connectors... RJ sockets (for unit in LN, remote display) - CN bus connectors... RJ sockets - Power supply:... via CN bus or external Vdc supply Liebert PDX - PD

72 Microprocessor Controls Return air temperature. If on the top-right SYSEM is indicated, it is the average of all units with system on. If UNI x is indicated, it is the return air temperature of the specific unit. his is valid for all indications in the display. he small number represents the actual set point. If the Cold isle function is enabled the remote H sensor temperature value is shown in place of the standard share return temperature. Specific Cold isle icons are shown. Return air humidity of the system / the unit and the set point. If the Cold isle function is enabled the remote H sensor humidity value is shown in place of the standard share return humidity. Specific Cold isle icons are shown. Supply air temperature of the system / the unit and the supply limit set point. SE means set point C means actual reading his bargraph gives information about the actual Fan speed. In units w/o Fan speed control the graph will show 00% if the fan is on, and 0% if the fan is off. his bargraph gives information about the actual used cooling resources in operation, either for the system or for a specific unit. his bargraph gives information about the actual used Freecooling resources in operation, either for the system or for a specific unit. his bargraph gives information about the actual used heating resources (Hot Water) in operation, either for the system or for a specific unit. his bargraph gives information about the actual used heating resources (Electrical Heaters) in operation, either for the system or for a specific unit. his bargraph gives information about the actual used dehumidification resources in operation, either for the system or for a specific unit. his bargraph gives information about the actual used humidification resources in operation, either for the system or for a specific unit. his bargraph gives information about the next maintenance time ( yyyy). his field of the window informs about time, date, the status of the system / unit. It also contains an event log holding the latest events occurred to the system / unit. (Large CF Display only). Liebert IntelliSlot Web,, SiteLink-E, IPML cards (Digit 9) Liebert IntelliSlot Web,, SiteLink-E, IPML cards enable monitoring through Liebert Supervising SW tools (SiteScan, Nform) or a uilding Management System. Plug and play solution cards that allow live data management, remote alarm notification and offer multiple connection options. Moreover provide for ease of integration with industry standard open" protocol. larm oard (accessory) he larm oard converts larms (high priority) or Warnings (lower priority) from icom into Volt-free contacts. In this way, following Warnings/larms are separated: Humidifier Failure (if installed), High/Low room emperature, High/Low room Humidity, Fan Failure, Clogged Filter alarm (if device installed), Water Leakage (if sensor installed). larm board is included for free in case Electronic Expansion Valve (selected on unit digit) and standard software. In fact icom can use the same board as double function for this application. 0 - Liebert PDX - PD

73 Humidification Humidification he humidification system is provided by an electronic controlled humidifier. he dehumidification function, which is supplied as standard when the humidifier option is installed, acts by reducing the fan speed with consequent reduction of the air flow and at the same time switching on the compressor(s). Electronic humidity control he software of the icom Control microprocessor control includes an algorithm which manages the humidifier modulating and also provides the dehumidification function. here is also a special function which automatically prevents dehumidification if the return air temperature is below the required value. When the temperature reaches the correct value, the dehumidification function is automatically reactivated. Dehumidification control may be either of the proportional or of the on-off type, depending on the installation requirements: on-off is set as standard at the factory. Electrode steam humidifier he Electrode humidifier is a replaceable plastic water cylinder with iersed electrodes. When an electrical current passes between the electrodes, the water is converted into the required quantity of steam. It is suitable for a large range of water qualities (with varying degrees of hardness) with the exception of demineralized water. It almost instantaneously produces clean, particle-free steam and avoids energy losses which are typical of other systems. he humidifier is provided with the steam cylinder, water inlet and outlet valves and a maximum level sensor. he steam output can be adjusted within a range of values which can be chosen manually and is factory-set at 0% of the maximum capacity (see the relevant data in ab. a). Electrode humidifier features he steam is mixed with the delivery air of the evaporating coil by means of a suitable distributor. he icom Control controller can determine when the cylinder has to be changed. Replacing the cylinder is extremely easy and quick. self-adaptive flow control system is fitted as standard and controls the current passing through the cylinder water. ab. a - Humidair specifications MIN POWER SUPPLIES (V ± 0%) SEING SORED CURREN POWER MX. CYLINDER WER VOLUME MX. SUPPLY WER QUNIY MX. DRIN WER QUNIY [kg/h] * [] [kw] [l] [l/min.] [l/min.] 00V / ph / 0Hz For humidifier current (FL) and rated power refer to electrical features in air conditioner manual. (*) Unit is factory-set to produce about 0% of the maximum value (see icom Control manual). Liebert PDX - PD

74 Humidification Infrared humidifier he infrared humidifier design consists of quartz lamps mounted above a stainless steel water reservoir. he lamps never come in contact with the water. When humidification of room air is required, infrared rays generate water vapor without impurities or odor, within seconds. Infrared humidifier features he steam is mixed with the delivery air of the cooling coil by means of a suitable distributor. During normal humidifier operation, deposits of mineral solids will collect in the humidifier pan and on the float switch. hese must be cleaned periodically to ensure proper operation. Frequency of cleaning must be locally established because it depends on humidifier usage and local water quality. spare pan is recoended to reduce maintenance time at unit. he Liebert autoflush system can greatly increase the time between cleanings, but does not eliminate the need for periodic checks and maintenance. ab. b - Infrared Humidifier specifications Humidifier Model PX PX0...0 PN Stainless steel cciaio inossidabile Stainless steel cciaio inossidabile MIN POWER SUPPLIES (V ± 0%) NOMINL CPCIY SORED CURREN POWER INPU [kg/h] [] [kw] 00V / ph / 0Hz.. 00V / ph / 0Hz Ultrasonic humidifier Ultrasonic humidifier operates on the principle of ultrasonic nebulization. he mist generated in the water tank by means of the transducer is blown into the room by the built in fan. Ultrasonic Humidifier can work only with demineralized water with conductivity < μs/cm (up to 0 μs/cm for a short time). Ultrasonic humidifier features he Ultrasonic humidifier is supplied mounted within one base module 00 heigh stand alone, to connect on the field with the air conditioner. he module can be installed on the raised floor or in the raised floor. he humidifier consists of nebulization modules, solenoid valve for the control of the supply water, float switch and a case that houses the fan. ab. c - Ultrasonic Humidifier specifications Humidifier Model POWER SUPPLIES (Vac) NUMER OF RNSDUCERS [kg/h] [W] HSU0RM Liebert PDX - PD

75 Dimensional Data / Connections Fig..a UPFLOW DimensionalData / Connections Overall dimensions and service area DOWNFLOW UP DOWNFLOW FRONL DOWNFLOW DOWN MX 00 MX 00 * C D G D G D G Floor Level E* Floor Level F 00 ab. a - Overall dimensions Service area (referring to Fig..a) Models [] PX0 00 PX0 PX0 PX0 PX0 PX0 0 PX0 PX0 PX0 PX0 PX0 PX09 0 PX0 PX0 PX09 00 PX09 0 Unit Upflow Up Frontal * [] Down E* [] Plenum 90* 0* * 90* Options VILLE PLENUM HEIGHS: D [] Plenum for silencing cartridges Plenum for high efficiency filters Plenum with frontal airflow (Upflow) ir Economizer ase Modules C [] 00 ase Module (ase Module with bottom air intake) 00 (ase Module with rear air intake) F (free space between unit bottom and basement): max. 00 (base frame/legs kit availability) min. 00 (to get declared performances) min. 00 (minimum working conditions) G (free space between ceiling and unit top or plenum top if installed): min. 00 (to get declared performances) min. 00 (minimum working conditions) * In Up, Frontal, Down units with predisposition for damper, economizer and plenum installation (digit =S, F, G, H or L) the unit is shipped with a connecting flange 0 high fixed on the unit top, so the unit is 0 higher. If required, the flange can be removed by unscrewing the fixing screws (removing the side panel to access the screws head) and repositioned later (see Chap. ). Liebert PDX - PD

76 Dimensional Data / Connections Hole in the floor for versions. Fig..b Up Down ab. b - Hole in the floor for units, dimensions in. Configuration Up Down Unit With ase Frame ** With Legs kit ** With floor tiles support kit ** PX0 PX0 PX09 PX0 PX0 PX0 PX0 PX0 PX0 PX0 PX09 PX0 PX0 PX09 PX0 PX C* C* C* C* C* * Minimal distance of the working unit from the back wall. Caution: In order to assemble and/or install accessories, a larger distance might be required. In that case, the unit can be moved in the working position after installation / assembly procedures. ** Optional accessories - see details in Chap. - Liebert PDX - PD

77 Dimensional Data / Connections Units Weight ab. c - Units weight MODELS [kg] W [kg] F [kg] D [kg] H [kg] Packaging (kg) Standard Height unit PX0 0 PX0 0 PX0 0 () (0) () () () PX0 () () () (9) () PX0 9 PX0 PX0 PX PX0 0 0 PX PX0 9 (9) 90 (90) 00 (00) 9 (0) 00 (0) PX09 99 (99) 9 (9) 0 (0) 9 (0) 0 (0) PX0 90 (9) 90 (9) 0 (0) 99 (0) 09 (0) PX Extended Height unit [Coil Module] () PX09 PX09 0 Extended Height unit [Fan ase Frame] () F 9 F 0 Extended Height unit [Fan ase Module / Fan op Plenum] () M/ P M/ P 00 Note: Data above refer to standard units without any option. Data in brackets refer to Digital Scroll Compressor Cooling System, when the data differs. () For Extended Height total unit weight must be calculated suing the Coil Module weight and Fan Section weight. Liebert PDX - PD

78 Dimensional Data / Connections Packing he air conditioners are packed on a wooden pallet (), with shockproof angle pieces from pressed cardboard (,,, ), panels in cardboard (, ) and flexible polythene film (). ase frames are packed on a wooden pallet (), with a panel in cardboard () and a protective wooden structure (9). Special packing (options) Special packing for sea transport, consisting of a wooden box or crate, can be supplied on request. Fig..c Packing of unit C Fig..d Packing of fan module 9 C 9 C 9 ab. d - Packing dimensions Standard Height Unit Extended Height Unit [Coil Module] [] [] C[] PX0 PX0 PX PX0 PX0 PX0 PX0 PX0 PX0 PX PX0 PX0 PX0 PX09 PX0 PX Extended Height Unit [Fan Module] [] [] C[] M/ P/F M/ P/F Liebert PDX - PD

79 Dimensional Data / Connections Hydraulic and electrical connections version ab. e - Refrigerant, hydraulic and electrical connections IL IL OG OG IWC IWC OWC Model PX0 PX0 PX09 Unit Connection W F D H W W Refrigerant liquid line inlet * Refrigerant liquid line inlet * Refrigerant gas line outtlet * Refrigerant gas line outlet * Water to condenser inlet Water to condenser inlet Water to condenser outlet O.D. Ø O.D. Ø Rp ¼ ISO / Rp ¼ ISO / O.D. Ø O.D. Ø Rp ¼ ISO / Rp ¼ ISO / OWC Water to condenser outlet IHW Hot water inlet OD OHW Hot water outlet OD O.D. Ø O.D. Ø IFC Water inlet (Freecooling and dual fluid) Rp ¼ ISO / OFC Water outlet (Freecooling and dual fluid) Rp ¼ ISO / CD Condensate drain I.D. Ø0 [] HF Humidifier feed R ½ ISO / (Electrode Humidifier) HF Humidifier feed O.D. [] (Infrared Humidifier) HD Humidifier drain I.D. Ø [] (Electrode Humidifier) HD Humidifier drain I.D. Ø [] (Infrared Humidifier) EC Electrical power supply Ø [] EC aux Low voltage cables Ø 0 Ø [] Rp ¼ ISO / Rp ¼ ISO / O.D. Ø O.D. Ø Rp ¼ ISO / Rp ¼ ISO / IL IL OG OG Model PX0 PX0 PX0 Unit Connection W F D H W F D H W IWC IWC OWC Refrigerant liquid line inlet * Refrigerant liquid line inlet * Refrigerant gas line outtlet * Refrigerant gas line outlet * Water to condenser inlet Water to condenser inlet Water to condenser outlet O.D. Ø O.D. Ø Rp ¼ ISO / Rp ¼ ISO / O.D. Ø O.D. Ø Rp ¼ ISO / Rp ¼ ISO / O.D. Ø O.D. Ø OWC Water to condenser outlet IHW Hot water inlet OD OHW Hot water outlet OD IFC OFC Water inlet (Freecooling and dual fluid) Water outlet (Freecooling and dual fluid) Rp ¼ ISO / Rp ¼ ISO / O.D. Ø O.D. Ø Rp ½ ISO / Rp ½ ISO / Rp ½ ISO / Rp ½ ISO / CD Condensate drain I.D. Ø0 [] HF Humidifier feed R ½ ISO / (Electrode Humidifier), O.D. [] (Infrared Humidifier) HD Humidifier drain I.D. Ø [] (Electrode Humidifier), I.D. Ø [] (Infrared Humidifier) EC Electrical power supply Ø [] EC aux Low voltage cables Ø 0 Ø [] * Connection size only. he connecting pipe diameter depends on unit model, see ab.d in par... (User Manual) ** VICULIC Connection. *** Optional. hreaded union on request Rp ¼ ISO / Rp ¼ ISO / O.D. Ø O.D. Ø Rp ¼ ISO / Rp ¼ ISO / Liebert PDX - PD

80 Dimensional Data / Connections Model PX0 PX0 PX0 Unit Connection W F D H W F D H W F D H IL IL OG OG IWC IWC OWC OWC Refrigerant liquid line inlet * Refrigerant liquid line inlet * Refrigerant gas line outtlet * Refrigerant gas line outlet * Water to condenser inlet Water to condenser inlet Water to condenser outlet Water to condenser outlet O.D. Ø O.D. Ø O.D. Ø O.D. Ø Rp ¼ ISO / Rp ¼ ISO / Rp ¼ ISO / Rp ¼ ISO / O.D. Ø O.D. Ø O.D. Ø O.D. Ø Rp ¼ ISO / Rp ¼ ISO / Rp ¼ ISO / Rp ¼ ISO / O.D. Ø O.D. Ø O.D. Ø O.D. Ø Rp ¼ ISO / Rp ¼ ISO / Rp ¼ ISO / Rp ¼ ISO / IHW Hot water inlet OD OHW Hot water outlet OD IFC OFC Water inlet (Freecooling and dual fluid) Water outlet (Freecooling and dual fluid) O.D. Ø O.D. Ø O.D. Ø O.D. Ø Rp ¼ ISO / Rp ¼ ISO / Rp ¼ ISO / Rp ¼ ISO / O.D. Ø O.D. Ø O.D. Ø O.D. Ø Rp ¼ ISO / Rp ¼ ISO / Rp ¼ ISO / Rp ¼ ISO / O.D. Ø O.D. Ø O.D. Ø O.D. Ø Rp ½ ISO / Rp ½ ISO / Rp ½ ISO / Rp ½ ISO / Rp ½ ISO / Rp ½ ISO / CD Condensate drain I.D. Ø0 [] HF Humidifier feed R ½ ISO / (Electrode Humidifier), O.D. [] (Infrared Humidifier) HD Humidifier drain I.D. Ø [] (Electrode Humidifier), I.D. Ø [] (Infrared Humidifier) EC Electrical power supply Ø [] EC aux Low voltage cables Ø 0 Ø [] Model PX0 PX09 PX0 PX0 Unit Connection W W W F D H W F D H IL IL OG OG IWC IWC OWC OWC Refrigerant liquid line inlet * Refrigerant liquid line inlet * Refrigerant gas line outtlet * Refrigerant gas line outlet * Water to condenser inlet Water to condenser inlet Water to condenser outlet Water to condenser outlet O.D. Ø O.D. Ø O.D. Ø O.D. Ø Rp ¼ ISO / Rp ¼ ISO / Rp ¼ ISO / Rp ¼ ISO / O.D. Ø O.D. Ø O.D. Ø O.D. Ø Rp ¼ ISO / Rp ¼ ISO / Rp ¼ ISO / Rp ¼ ISO / O.D. Ø O.D. Ø O.D. Ø O.D. Ø Rp ¼ ISO / Rp ¼ ISO / Rp ¼ ISO / Rp ¼ ISO / IHW Hot water inlet OD OHW Hot water outlet OD IFC OFC Water inlet (Freecooling and dual fluid) Water outlet (Freecooling and dual fluid) O.D. Ø O.D. Ø O.D. Ø O.D. Ø O.D. ** R ISO /*** O.D. ** R ISO /*** Rp ¼ ISO / Rp ¼ ISO / Rp ¼ ISO / Rp ¼ ISO / CD Condensate drain I.D. Ø0 [] HF Humidifier feed R ½ ISO / (Electrode Humidifier), O.D. [] (Infrared Humidifier) HD Humidifier drain I.D. Ø [] (Electrode Humidifier), I.D. Ø [] (Infrared Humidifier) EC Electrical power supply Ø [] EC aux Low voltage cables Ø 0 Ø [] O.D. Ø O.D. Ø O.D. Ø O.D. Ø * Connection size only. he connecting pipe diameter depends on unit model, see ab.d in par... (User Manual) ** VICULIC Connection. *** Optional. hreaded union on request Rp ¼ ISO / Rp ¼ ISO / Rp ¼ ISO / Rp ¼ ISO / O.D. Ø O.D. Ø O.D. Ø O.D. Ø O.D. ** R ISO /*** O.D. ** R ISO /*** Rp ¼ ISO / Rp ¼ ISO / Rp ¼ ISO / Rp ¼ ISO / Rp ¼ ISO / Rp ¼ ISO / Rp ¼ ISO / Rp ¼ ISO / - Liebert PDX - PD

81 Dimensional Data / Connections IL IL OG OG IWC IWC OWC OWC Model PX09 PX0 PX0 Unit Connection W F D H W F D H W Refrigerant liquid line inlet * Refrigerant liquid line inlet * Refrigerant gas line outtlet * Refrigerant gas line outlet * Water to condenser inlet Water to condenser inlet Water to condenser outlet Water to condenser outlet O.D. Ø O.D. Ø O.D. Ø O.D. Ø Rp ¼ ISO / Rp ¼ ISO / Rp ¼ ISO / Rp ¼ ISO / O.D. Ø O.D. Ø O.D. Ø O.D. Ø Rp ¼ ISO / Rp ¼ ISO / Rp ¼ ISO / Rp ¼ ISO / O.D. Ø O.D. Ø O.D. Ø O.D. Ø IHW Hot water inlet OD OHW Hot water outlet OD IFC OFC Water inlet (Freecooling and dual fluid) Water outlet (Freecooling and dual fluid) O.D. ** R ISO /*** O.D. ** R ISO /*** CD Condensate drain I.D. Ø0 [] Rp ¼ ISO / Rp ¼ ISO / Rp ¼ ISO / Rp ¼ ISO / O.D. Ø O.D. Ø O.D. Ø O.D. Ø O.D. ** R ISO /*** O.D. ** R ISO /*** HF Humidifier feed R ½ ISO / (Electrode Humidifier), O.D. [] (Infrared Humidifier) HD Humidifier drain I.D. Ø [] (Electrode Humidifier), I.D. Ø [] (Infrared Humidifier) EC Electrical power supply Ø [] EC aux Low voltage cables Ø 0 Ø [] * Connection size only. he connecting pipe diameter depends on unit model, see ab.d in par... (User Manual) ** VICULIC Connection. *** Optional. hreaded union on request Rp ¼ ISO / Rp ¼ ISO / Rp ¼ ISO / Rp ¼ ISO / O.D. Ø O.D. Ø O.D. Ø O.D. Ø Rp ¼ ISO / Rp ¼ ISO / Rp ¼ ISO / Rp ¼ ISO / Liebert PDX - PD

82 Dimensional Data / Connections Fig..e Refrigerant, water and electrical connections PX W, top view IHW OHW CD IL / OWC HD/HF OG / IWC EC EC aux, 9, 9 0 HD/HF 0 Fig..f Refrigerant, water and electrical connections PX0 F H D, top view HD/HF IHW OHW EC 0 CD IFC IL / OWC OFC OG / IWC EC aux 9 0, 0 HD/HF 0 - Liebert PDX - PD

83 Dimensional Data / Connections Fig..g Refrigerant, water and electrical connections PX D, top view 0 HD/HF EC, OHW IHW IL OG EC aux CD IFC OFC IL OG 0,, 9 0 Fig..h Refrigerant, water and electrical connections PX W F H, top view 0 HD/HF EC OHW IHW OWC IWC EC aux CD IFC OFC OWC IWC 0, 0 Liebert PDX - PD

84 Dimensional Data / Connections Fig..i Refrigerant, water and electrical connections PX D, top view EC 9, OHW IHW IL OG EC aux OG HD/HF CD IFC OFC IL 0, 9 09 Fig..j Refrigerant, water and electrical connections PX W F H, top view 0 HD/HF EC OHW IHW OWC IWC EC aux 90 IFC OFC OWC IWC CD 09-0 Liebert PDX - PD

85 Dimensional Data / Connections Fig..k Refrigerant and water connections PX0 0, side view IWC OG OWC IL OFC IFC FRON ÈÈÈÈÈÈÈÈÈÈÈÈÈÈÈÈÈÈÈÈ FLOOR Fig..l Refrigerant and water connections PX0 0 Upflow, side view IWC OG OWC IL OFC IFC FRON FLOOR ÈÈÈÈÈÈÈÈÈÈÈÈÈÈÈÈÈÈÈÈ ÈÈÈÈÈÈÈÈÈÈÈÈÈÈÈÈÈÈÈÈ Liebert PDX - PD

86 Dimensional Data / Connections ab. f - Pipe diameters (room unit - remote condenser) MOD. SNDRD PIPE DIMEERS (Valid for equivalent lengths up to 00 m) copper tube external diametre x thickness [] R0 Gas Liquid PX0 x. x PX0 x. x. PX09 x. x. PX0 x. x. PX0 x. x. PX0 x. x. PX0 x x PX0 x. x PX0 x. x PX0 x. x PX09 x. x. PX0 x. x PX0 x. x PX09 x. x. PX0 x. x. PX0 x. x. ab. g - Equivalent lengths (m) of: curves, shut-off and non-return valves Nominal diameter () Liebert PDX - PD

87 Dimensional Data / Connections ab. h - Condenser positioning INSULION CONDENSER POSIION gas liq. CONDENSER OVE CONDENSER ND CONDENSER ELOW CONDIIONER CONDIIONER CONDIIONER SME LEVEL (not recoended) int. necessary necessary necessary ext. only for aesthetic reasons only for aesthetic reasons only for aesthetic reasons int. absolutely not not necessary no (expose to cold underfloor air) ext. only for aesthetic reasons only if exposed to sun only if exposed to sun % % room unit room unit LYOU see ** gas liquid room unit gas liquid % % gas liquid see ** m (see *) % % (*) Oil traps every m of vertical piping (**) see Chap. Note: Create an oil trap on the horizontal discharge line before each lift. Check the manufacturer's indication for the non return valve orientation and position. Liebert PDX - PD

88 Refrigerant and Hydraulic Circuits Refrigerant and Hydraulic Circuits Fig.. - Refrigerant circuit version Single circuit Single compressor XV ONLY WIH REHEING COIL OPION 0 9 FG SUPPLY LIMI SUPPLY LIMI CONDENSING UNI DESCRIPION Compressor Crankcase heater High pressure switch (HP) ir cooled condenser Liquid receiver ccess valve / Safety valve Filter dryer 9 Sight glass DESCRIPION 0 hermostatic expansion valve Shut off solenoid valve Check valve Shut off valve Reheating coil (optional) Evaporator Low pressure transducer Reheating solenoid valve (optional) ccess valve / - Liebert PDX - PD

89 Refrigerant and Hydraulic Circuits Fig.. - Refrigerant circuit version Single circuit Single compressor EEV ONLY WIH REHEING COIL OPION 0 9 FG SUPPLY LIMI SUPPLY LIMI CONDENSING UNI DESCRIPION Compressor Crankcase heater High pressure switch (HP) ir cooled condenser Liquid receiver ccess valve / Safety valve Filter dryer 9 Sight glass DESCRIPION 0 Electronic expansion valve (EEV) emperature sensor for EEV Check valve Shut off valve Reheating coil (optional) Evaporator Low pressure transducer EEV Reheating solenoid valve (optional) ccess valve / Liebert PDX - PD

90 Refrigerant and Hydraulic Circuits Fig.. - Refrigerant circuit version Single circuit Single DIGIL compressor XV ONLY WIH REHEING COIL OPION 0 0 DIGIL COMPR. 9 FG 9 SUPPLY LIMI SUPPLY LIMI CONDENSING UNI DESCRIPION Compressor Crankcase heater High pressure switch (HP) ir cooled condenser Liquid receiver ccess valve / Safety valve Filter dryer 9 Sight glass 0 hermostatic expansion valve DESCRIPION Shut off solenoid valve Check valve Shut off valve Reheating coil (optional) Evaporator Low pressure transducer Reheating solenoid valve (optional) High pressure transducer 9 ccess valve / 0 NC emperature sensor for DIGIL compressor - Liebert PDX - PD

91 Refrigerant and Hydraulic Circuits Fig.. - Refrigerant circuit version Single circuit Single DIGIL compressor EEV ONLY WIH REHEING COIL OPION 0 DIGIL COMPR. 0 9 FG 9 SUPPLY LIMI SUPPLY LIMI CONDENSING UNI DESCRIPION Compressor Crankcase heater High pressure switch (HP) ir cooled condenser Liquid receiver ccess valve / Safety valve Filter dryer 9 Sight glass 0 Electronic expansion valve (EEV) DESCRIPION emperature sensor for EEV Check valve Shut off valve Reheating coil (optional) Evaporator Low pressure transducer EEV Reheating solenoid valve (optional) High pressure transducer 9 ccess valve / 0 NC emperature sensor for DIGIL compressor Liebert PDX - PD

92 Refrigerant and Hydraulic Circuits Fig.. - Refrigerant circuit version Single circuit andem compressors EEV ONLY WIH REHEING COIL OPION NDEM 0 COMPR. 9 COMPR. 9 FG SUPPLY LIMI SUPPLY LIMI CONDENSING UNI DESCRIPION Compressor Crankcase heater High pressure switch (HP) ir cooled condenser Liquid receiver ccess valve / Safety valve Filter dryer 9 Sight glass 0 Electronic expansion valve (EEV) DESCRIPION emperature sensor for EEV Check valve Shut off valve Reheating coil (optional) Evaporator Low pressure transducer EEV Reheating solenoid valve (optional) ccess valve / 9 High pressure transducer - Liebert PDX - PD

93 Refrigerant and Hydraulic Circuits Fig.. - Refrigerant circuit version Single circuit andem DIGIL compressors EEV ONLY WIH REHEING COIL OPION NDEM 0 COMP. 0 0 COMP. (FOR PX0-09) (FOR PX0-0) 9 FG 9 SUPPLY LIMI SUPPLY LIMI COMP. COMP. CONDENSING UNI PX09 PX0 PX0 PX0 DIGIL DIGIL DIGIL DIGIL DESCRIPION Compressor Crankcase heater High pressure switch (HP) ir cooled condenser Liquid receiver ccess valve / Safety valve Filter dryer 9 Sight glass 0 Electronic expansion valve (EEV) Liebert PDX - PD DESCRIPION emperature sensor for EEV Check valve Shut off valve Reheating coil (optional) Evaporator Low pressure transducer EEV Reheating solenoid valve (optional) High pressure transducer 9 ccess valve / 0 NC emperature sensor for DIGIL compressor -

94 Refrigerant and Hydraulic Circuits Fig.. - Refrigerant circuit version Dual circuits Single compressors XV ONLY WIH REHEING COIL OPION 0 0 CIRC. CIRC. 9 FG FG 9 SUPPLY LIMI SUPPLY LIMI CONDENSING UNI CONDENSING UNI DESCRIPION Compressor Crankcase heater High pressure switch (HP) ir cooled condenser Liquid receiver ccess valve / Safety valve Filter dryer 9 Sight glass DESCRIPION 0 hermostatic expansion valve Shut off solenoid valve Check valve Shut off valve Reheating coil (optional) Evaporator Low pressure transducer Reheating solenoid valve (optional) ccess valve / - Liebert PDX - PD

95 Refrigerant and Hydraulic Circuits Fig.. - Refrigerant circuit version Dual circuits Single compressors EEV ONLY WIH REHEING COIL OPION CIRC. CIRC FG FG 9 SUPPLY LIMI SUPPLY LIMI CONDENSING UNI CONDENSING UNI DESCRIPION Compressor Crankcase heater High pressure switch (HP) ir cooled condenser Liquid receiver ccess valve / Safety valve Filter dryer 9 Sight glass DESCRIPION 0 Electronic expansion valve (EEV) emperature sensor for EEV Check valve Shut off valve Reheating coil (optional) Evaporator Low pressure transducer EEV Reheating solenoid valve (optional) ccess valve / Liebert PDX - PD

96 Refrigerant and Hydraulic Circuits Fig..9 - Refrigerant circuit version Dual circuits Single +DIGIL compressors XV ONLY WIH REHEING COIL OPION 0 0 CIRC. CIRC. COMPR. DIGIL COMPR. 9 9 FG FG SUPPLY LIMI CONDENSING UNI CONDENSING UNI DESCRIPION Compressor Crankcase heater High pressure switch (HP) ir cooled condenser Liquid receiver ccess valve / Safety valve Filter dryer 9 Sight glass 0 hermostatic expansion valve Shut off solenoid valve DESCRIPION Check valve Shut off valve Reheating coil (optional) Evaporator Low pressure transducer Reheating solenoid valve (optional) High pressure transducer 9 ccess valve / 0 Check valve (only for PX0 0) NC emperature sensor for DIGIL compressor - 9 Liebert PDX - PD

97 Refrigerant and Hydraulic Circuits Fig..0 - Refrigerant circuit version Dual circuits Single +DIGIL compressors EEV ONLY WIH REHEING COIL OPION 0 0 CIRC. CIRC. COMPR. DIGIL COMPR. 9 9 FG FG SUPPLY LIMI SUPPLY LIMI CONDENSING UNI CONDENSING UNI DESCRIPION Compressor Crankcase heater High pressure switch (HP) ir cooled condenser Liquid receiver ccess valve / Safety valve Filter dryer 9 Sight glass 0 Electronic expansion valve (EEV) emperature sensor for EEV DESCRIPION Check valve Shut off valve Reheating coil (optional) Evaporator Low pressure transducer Reheating solenoid valve (optional) High pressure transducer 9 ccess valve / 0 Check valve (only for PX0 0) NC emperature sensor for DIGIL compressor Liebert PDX - PD

98 Refrigerant and Hydraulic Circuits Fig.. - Refrigerant circuit version Dual circuits andem compressors EEV ONLY WIH REHEING COIL OPION CIRC. CIRC. NDEM 0 0 NDEM COMPR. COMPR. COMPR. 9 9 FG FG 9 9 COMPR. SUPPLY LIMI SUPPLY LIMI CONDENSING UNI CONDENSING UNI DESCRIPION Compressor Crankcase heater High pressure switch (HP) ir cooled condenser Liquid receiver ccess valve / Safety valve Filter dryer 9 Sight glass 0 Electronic expansion valve (EEV) DESCRIPION emperature sensor for EEV Check valve Shut off valve Reheating coil (optional) Evaporator Low pressure transducer Reheating solenoid valve (optional) ccess valve / 9 High pressure transducer - Liebert PDX - PD

99 Refrigerant and Hydraulic Circuits Fig.. - Refrigerant circuit version Dual circuits andem DIGIL compressors EEV ONLY WIH REHEING COIL OPION CIRC. CIRC. NDEM 0 0 NDEM COMP. COMP (FOR PX0) (FOR PX0 09 0) 9 FG FG 9 COMP. (FOR PX0) 0 (FOR PX0 09 0) COMP. 9 9 SUPPLY LIMI SUPPLY LIMI CONDENSING UNI CONDENSING UNI COMP. COMP. COMP. COMP. PX0 PX09 PX0 PX0 DIGIL DIGIL DIGIL DIGIL DIGIL DIGIL DIGIL DIGIL DESCRIPION Compressor Crankcase heater High pressure switch (HP) ir cooled condenser Liquid receiver ccess valve / Safety valve Filter dryer 9 Sight glass 0 Electronic expansion valve (EEV) DESCRIPION emperature sensor for EEV Check valve Shut off valve Reheating coil (optional) Evaporator Low pressure transducer Reheating solenoid valve (optional) High pressure transducer 9 ccess valve / 0 NC emperature sensor for DIGIL compressor Liebert PDX - PD

100 Refrigerant and Hydraulic Circuits Fig.. - Refrigerant circuit W version - Single circuit - Single compressor - XV ONLY WIH REHEING COIL OPION 0 9 FG OPION -WY VLVE 0 OPION -WY VLVE 9 WER OULE WER INLE DESCRIPION Compressor Crankcase heater High pressure switch (HP) Water cooled condenser Liquid receiver ccess valve / Safety valve Filter dryer 9 Sight glass 0 hermostatic expansion valve Shut-off solenoid valve DESCRIPION Check valve Reheating coil (optional) Evaporator Low pressure transducer Reheating solenoid valve (optional) Condensing regulation water valve 9 Pressure transducer condensing regulation 0 Check valve 0 bar ( psi) lind disk - only with optional -way valve ccess valve / - Liebert PDX - PD

101 Refrigerant and Hydraulic Circuits Fig.. - Refrigerant circuit W version - Single circuit - Single compressor - EEV ONLY WIH REHEING COIL OPION 0 9 FG OPION -WY VLVE 0 OPION -WY VLVE 9 WER OULE WER INLE DESCRIPION Compressor Crankcase heater High pressure switch (HP) Water cooled condenser Liquid receiver ccess valve / Safety valve Filter dryer 9 Sight glass 0 Electronic expansion valve (EEV) emperature sensor for EEV DESCRIPION Check valve Reheating coil (optional) Evaporator Low pressure transducer Reheating solenoid valve (optional) Condensing regulation water valve 9 Pressure transducer condensing regulation 0 Check valve 0 bar ( psi) lind disk - only with optional -way valve ccess valve / Liebert PDX - PD

102 Refrigerant and Hydraulic Circuits Fig.. - Refrigerant circuit W version - Single circuit - Single DIGIL compressor - XV ONLY WIH REHEING COIL OPION 0 DIGIL COMPR. 9 FG OPION -WY VLVE 0 OPION -WY VLVE 9 WER OULE WER INLE DESCRIPION Compressor Crankcase heater High pressure switch (HP) Water cooled condenser Liquid receiver ccess valve / Safety valve Filter dryer 9 Sight glass 0 hermostatic expansion valve Shut-off solenoid valve DESCRIPION Check valve Reheating coil (optional) Evaporator Low pressure transducer Reheating solenoid valve (optional) Condensing regulation water valve 9 Pressure transducer condensing regulation 0 Check valve 0 bar ( psi) lind disk - only with optional -way valve NC emperature sensor for DIGIL compressor ccess valve / - Liebert PDX - PD

103 Refrigerant and Hydraulic Circuits Fig.. - Refrigerant circuit W version - Single circuit - Single DIGIL compressor - EEV ONLY WIH REHEING COIL OPION DIGIL COMPR. 0 9 FG OPION -WY VLVE 0 OPION -WY VLVE 9 WER OULE WER INLE DESCRIPION Compressor Crankcase heater High pressure switch (HP) Water cooled condenser Liquid receiver ccess valve / Safety valve Filter dryer 9 Sight glass 0 Electronic expansion valve (EEV) emperature sensor for EEV DESCRIPION Check valve Reheating coil (optional) Evaporator Low pressure transducer Reheating solenoid valve (optional) Condensing regulation water valve 9 Pressure transducer condensing regulation 0 Check valve 0 bar ( psi) lind disk - only with optional -way valve NC emperature sensor for DIGIL compressor ccess valve / Liebert PDX - PD

104 Refrigerant and Hydraulic Circuits Fig.. - Refrigerant circuit W version - Single circuit - andem compressors - EEV ONLY WIH REHEING COIL OPION NDEM 0 COMPR. COMPR. 9 FG OPION -WY VLVE 0 OPION -WY VLVE 9 WER OULE WER INLE DESCRIPION Compressor Crankcase heater High pressure switch (HP) Water cooled condenser Liquid receiver ccess valve / Safety valve Filter dryer 9 Sight glass 0 Electronic expansion valve (EEV) emperature sensor for EEV DESCRIPION Check valve Reheating coil (optional) Evaporator Low pressure transducer Reheating solenoid valve (optional) Condensing regulation water valve 9 Pressure transducer condensing regulation 0 Check valve 0 bar ( psi) lind disk - only with optional -way valve ccess valve / - Liebert PDX - PD

105 Refrigerant and Hydraulic Circuits Fig.. - Refrigerant circuit W version - Single circuit - andem DIGIL compressors - EEV ONLY WIH REHEING COIL OPION NDEM COMP. COMP. 0 (FOR PX0-09) (FOR PX0-0) 9 FG OPION -WY VLVE 0 OPION -WY VLVE 9 WER OULE COMP. COMP. WER INLE PX09 PX0 PX0 PX0 DIGIL DIGIL DIGIL DIGIL DESCRIPION Compressor Crankcase heater High pressure switch (HP) Water cooled condenser Liquid receiver ccess valve / Safety valve Filter dryer 9 Sight glass 0 Electronic expansion valve (EEV) emperature sensor for EEV Check valve DESCRIPION Pressure transducer for electronic expansion valve Reheating coil (optional) Evaporator Low pressure transducer Reheating solenoid valve (optional) Condensing regulation water valve 9 Pressure transducer condensing regulation 0 Check valve 0 bar ( psi) lind disk - only with optional -way valve NC emperature sensor for DIGIL compressor ccess valve / Liebert PDX - PD

106 Refrigerant and Hydraulic Circuits Fig..9 - Refrigerant circuit W version - Dual circuits - Single compressors - XV ONLY WIH REHEING COIL OPION 0 0 CIRC. CIRC. 9 FG FG 9 OPION -WY VLVE 0 0 OPION -WY VLVE OPION -WY VLVE 9 WER OULE 9 OPION -WY VLVE WER INLE DESCRIPION Compressor Crankcase heater High pressure switch (HP) Water cooled condenser Liquid receiver ccess valve / Safety valve Filter dryer 9 Sight glass 0 hermostatic expansion valve Shut-off solenoid valve DESCRIPION Check valve Reheating coil (optional) Evaporator Low pressure transducer Reheating solenoid valve (optional) Condensing regulation water valve 9 Pressure transducer condensing regulation 0 Check valve 0 bar ( psi) lind disk - only with optional -way valve ccess valve / - 9 Liebert PDX - PD

107 Refrigerant and Hydraulic Circuits Fig..0 - Refrigerant circuit W version - Dual circuits - Single compressors - EEV ONLY WIH REHEING COIL OPION CIRC. CIRC FG FG 9 OPION -WY VLVE 0 OPION -WY VLVE 9 WER OULE 9 OPION -WY VLVE 0 OPION -WY VLVE WER INLE DESCRIPION Compressor Crankcase heater High pressure switch (HP) Water cooled condenser Liquid receiver ccess valve / Safety valve Filter dryer 9 Sight glass 0 Electronic expansion valve (EEV) emperature sensor for EEV DESCRIPION Check valve Reheating coil (optional) Evaporator Low pressure transducer Reheating solenoid valve (optional) Condensing regulation water valve 9 Pressure transducer condensing regulation 0 Check valve 0 bar ( psi) lind disk - only with optional -way valve ccess valve / Liebert PDX - PD

108 Refrigerant and Hydraulic Circuits Fig.. - Refrigerant circuit W version - Dual circuits - Single +DIGIL compressors - XV ONLY WIH REHEING COIL OPION CIRC. 0 0 CIRC. COMPR. 9 FG FG 9 DIGIL COMPR. OPION -WY VLVE 0 OPION -WY VLVE 9 WER OULE 9 OPION -WY VLVE 0 OPION -WY VLVE WER INLE DESCRIPION Compressor Crankcase heater High pressure switch (HP) Water cooled condenser Liquid receiver ccess valve / Safety valve Filter dryer 9 Sight glass 0 hermostatic expansion valve Shut-off solenoid valve Check valve DESCRIPION Reheating coil (optional) Evaporator Low pressure transducer Reheating solenoid valve (optional) Condensing regulation water valve 9 Pressure transducer condensing regulation 0 Check valve 0 bar ( psi) lind disk - only with optional -way valve Check valve for PX0-0 NC emperature sensor for DIGIL compressor ccess valve / - Liebert PDX - PD

109 Refrigerant and Hydraulic Circuits Fig.. - Refrigerant circuit W version - Dual circuits - Single +DIGIL compressors - EEV ONLY WIH REHEING COIL OPION CIRC. CIRC. 0 0 COMPR. 9 FG FG 9 DIGIL COMPR. OPION -WY VLVE 0 OPION -WY VLVE 9 9 OPION -WY VLVE 0 OPION -WY VLVE WER OULE WER INLE DESCRIPION Compressor Crankcase heater High pressure switch (HP) Water cooled condenser Liquid receiver ccess valve / Safety valve Filter dryer 9 Sight glass 0 Electronic expansion valve (EEV) emperature sensor for EEV Check valve DESCRIPION Reheating coil (optional) Evaporator Low pressure transducer Reheating solenoid valve (optional) Condensing regulation water valve 9 Pressure transducer condensing regulation 0 Check valve 0 bar ( psi) lind disk - only with optional -way valve Check valve for PX0-0 NC emperature sensor for DIGIL compressor ccess valve / Liebert PDX - PD

110 Refrigerant and Hydraulic Circuits Fig.. - Refrigerant circuit W version - Dual circuits - andem compressors - EEV ONLY WIH REHEING COIL OPION CIRC. CIRC. NDEM NDEM 0 0 COMPR. COMPR. 9 FG FG 9 COMPR. COMPR. OPION -WY VLVE 0 0 OPION -WY VLVE OPION -WY VLVE 9 WER OULE 9 OPION -WY VLVE WER INLE DESCRIPION Compressor Crankcase heater High pressure switch (HP) Water cooled condenser Liquid receiver ccess valve / Safety valve Filter dryer 9 Sight glass 0 Electronic expansion valve (EEV) emperature sensor for EEV DESCRIPION Check valve Reheating coil (optional) Evaporator Low pressure transducer Reheating solenoid valve (optional) Condensing regulation water valve 9 Pressure transducer condensing regulation 0 Check valve 0 bar ( psi) lind disk - only with optional -way valve ccess valve / - Liebert PDX - PD

111 Refrigerant and Hydraulic Circuits Fig.. - Refrigerant circuit W version - Dual circuits - andem DIGIL compressors - EEV ONLY WIH REHEING COIL OPION CIRC. CIRC. NDEM NDEM 0 0 COMP. (FOR PX0) (FOR PX0 09 0) COMP. 9 FG FG 9 COMP. (FOR PX0) (FOR PX0 09 0) COMP. OPION -WY VLVE 0 0 OPION -WY VLVE OPION -WY VLVE 9 WER OULE 9 OPION -WY VLVE WER INLE PX0 PX09 PX0 PX0 COMP. COMP. DIGIL DIGIL DIGIL DIGIL COMP. COMP. DIGIL DIGIL DIGIL DIGIL DESCRIPION Compressor Crankcase heater High pressure switch (HP) Water cooled condenser Liquid receiver ccess valve / Safety valve Filter dryer 9 Sight glass 0 Electronic expansion valve (EEV) emperature sensor for EEV DESCRIPION Check valve Reheating coil (optional) Evaporator Low pressure transducer Reheating solenoid valve (optional) Condensing regulation water valve 9 Pressure transducer condensing regulation 0 Check valve 0 bar ( psi) lind disk - only with optional -way valve NC emperature sensor for DIGIL compressor ccess valve / Liebert PDX - PD

112 Refrigerant and Hydraulic Circuits Fig.. - Refrigerant circuit F version - Single circuit - Single compressor - XV ONLY WIH REHEING COIL OPION FG 9 COOLING WER INLE COOLING WER OULE DESCRIPION Compressor Crankcase heater High pressure switch (HP) Water cooled condenser Liquid receiver ccess valve / Safety valve Filter dryer 9 Sight glass 0 hermostatic expansion valve Shut-off solenoid valve Check valve DESCRIPION Reheating coil (optional) Evaporator Low pressure transducer Reheating solenoid valve (optional) Condensing regulation water valve 9 Pressure transducer condensing regulation 0 Chilled water coil Chilled water -way valve Manual bleed valve Inlet water sensor Check valve 0 bar ( psi) ccess valve / - Liebert PDX - PD

113 Refrigerant and Hydraulic Circuits Fig.. - Refrigerant circuit F version - Single circuit - Single compressor - EEV ONLY WIH REHEING COIL OPION FG 9 COOLING WER INLE COOLING WER OULE DESCRIPION Compressor Crankcase heater High pressure switch (HP) Water cooled condenser Liquid receiver ccess valve / Safety valve Filter dryer 9 Sight glass 0 Electronic expansion valve (EEV) emperature sensor for EEV Check valve DESCRIPION Reheating coil (optional) Evaporator Low pressure transducer Reheating solenoid valve (optional) Condensing regulation water valve 9 Pressure transducer condensing regulation 0 Chilled water coil Chilled water -way valve Manual bleed valve Inlet water sensor Check valve 0 bar ( psi) ccess valve / Liebert PDX - PD

114 Refrigerant and Hydraulic Circuits Fig.. - Refrigerant circuit F version - Single circuit - Single DIGIL compressor - XV ONLY WIH REHEING COIL OPION 0 0 DIGIL COMPR. 9 FG 9 COOLING WER INLE COOLING WER OULE DESCRIPION Compressor Crankcase heater High pressure switch (HP) Water cooled condenser Liquid receiver ccess valve / Safety valve Filter dryer 9 Sight glass 0 hermostatic expansion valve Shut-off solenoid valve Check valve Reheating coil (optional) DESCRIPION Evaporator Low pressure transducer Reheating solenoid valve (optional) Condensing regulation water valve 9 Pressure transducer condensing regulation 0 Chilled water coil Chilled water -way valve Manual bleed valve Inlet water sensor Check valve 0 bar ( psi) NC emperature sensor for DIGIL compressor ccess valve / - Liebert PDX - PD

115 Refrigerant and Hydraulic Circuits Fig.. - Refrigerant circuit F version - Single circuit - Single DIGIL compressor - EEV ONLY WIH REHEING COIL OPION 0 0 DIGIL COMPR. 9 FG 9 COOLING WER INLE COOLING WER OULE DESCRIPION Compressor Crankcase heater High pressure switch (HP) Water cooled condenser Liquid receiver ccess valve / Safety valve Filter dryer 9 Sight glass 0 Electronic expansion valve (EEV) emperature sensor for EEV Check valve Reheating coil (optional) DESCRIPION Evaporator Low pressure transducer Reheating solenoid valve (optional) Condensing regulation water valve 9 Pressure transducer condensing regulation 0 Chilled water coil Chilled water -way valve Manual bleed valve Inlet water sensor Check valve 0 bar ( psi) NC emperature sensor for DIGIL compressor ccess valve / Liebert PDX - PD

116 Refrigerant and Hydraulic Circuits Fig..9 - Refrigerant circuit F version - Single circuit - andem DIGIL compressors - EEV ONLY WIH REHEING COIL OPION 0 NDEM 0 COMPR. DIGIL COMPR. 9 FG 9 COOLING WER INLE COOLING WER OULE DESCRIPION Compressor Crankcase heater High pressure switch (HP) Water cooled condenser Liquid receiver ccess valve / Safety valve Filter dryer 9 Sight glass 0 Electronic expansion valve (EEV) emperature sensor for EEV Check valve Reheating coil (optional) DESCRIPION Evaporator Low pressure transducer Reheating solenoid valve (optional) Condensing regulation water valve 9 Pressure transducer condensing regulation 0 Chilled water coil Chilled water -way valve Manual bleed valve Inlet water sensor Check valve 0 bar ( psi) NC emperature sensor for DIGIL compressor ccess valve / - 9 Liebert PDX - PD

117 Refrigerant and Hydraulic Circuits Fig..0 - Refrigerant circuit F version - Dual circuits - Single compressors - XV ONLY WIH REHEING COIL OPION CIRC. CIRC. 9 FG FG COOLING WER INLE COOLING WER OULE DESCRIPION Compressor Crankcase heater High pressure switch (HP) Water cooled condenser Liquid receiver ccess valve / Safety valve Filter dryer 9 Sight glass 0 hermostatic expansion valve Shut-off solenoid valve Check valve Liebert PDX - PD DESCRIPION Reheating coil (optional) Evaporator Low pressure transducer Reheating solenoid valve (optional) Condensing regulation water valve 9 Pressure transducer condensing regulation 0 Chilled water coil Chilled water -way valve Manual bleed valve Inlet water sensor Check valve 0 bar ( psi) ccess valve / - 0

118 Refrigerant and Hydraulic Circuits Fig.. - Refrigerant circuit F version - Dual circuits - Single compressors - EEV ONLY WIH REHEING COIL OPION 0 CIRC. 0 0 CIRC. 9 FG FG COOLING WER INLE COOLING WER OULE DESCRIPION Compressor Crankcase heater High pressure switch (HP) Water cooled condenser Liquid receiver ccess valve / Safety valve Filter dryer 9 Sight glass 0 Electronic expansion valve (EEV) emperature sensor for EEV Check valve DESCRIPION Reheating coil (optional) Evaporator Low pressure transducer Reheating solenoid valve (optional) Condensing regulation water valve 9 Pressure transducer condensing regulation 0 Chilled water coil Chilled water -way valve Manual bleed valve Inlet water sensor Check valve 0 bar ( psi) ccess valve / - Liebert PDX - PD

119 Refrigerant and Hydraulic Circuits Fig.. - Refrigerant circuit F version - Dual circuits - Single +DIGIL compressors - XV ONLY WIH REHEING COIL OPION 0 CIRC. 0 0 CIRC. 9 FG COMPR. FG 9 DIGIL COMPR. 9 9 COOLING WER INLE COOLING WER OULE DESCRIPION Compressor Crankcase heater High pressure switch (HP) Water cooled condenser Liquid receiver ccess valve / Safety valve Filter dryer 9 Sight glass 0 hermostatic expansion valve Shut-off solenoid valve Check valve Reheating coil (optional) Liebert PDX - PD DESCRIPION Evaporator Low pressure transducer Reheating solenoid valve (optional) Condensing regulation water valve 9 Pressure transducer condensing regulation 0 Chilled water coil Chilled water -way valve Manual bleed valve Inlet water sensor Check valve 0 bar ( psi) Check valve for PX0-0 NC emperature sensor for DIGIL compressor ccess valve / -

120 Refrigerant and Hydraulic Circuits Fig.. - Refrigerant circuit F version - Dual circuits - Single +DIGIL compressors - EEV ONLY WIH REHEING COIL OPION 0 CIRC. CIRC. 0 0 DIGIL COMPR. COMPR. 9 FG FG COOLING WER INLE COOLING WER OULE DESCRIPION Compressor Crankcase heater High pressure switch (HP) Water cooled condenser Liquid receiver ccess valve / Safety valve Filter dryer 9 Sight glass 0 Electronic expansion valve (EEV) emperature sensor for EEV Check valve Reheating coil (optional) DESCRIPION Evaporator Low pressure transducer Reheating solenoid valve (optional) Condensing regulation water valve 9 Pressure transducer condensing regulation 0 Chilled water coil Chilled water -way valve Manual bleed valve Inlet water sensor Check valve 0 bar ( psi) Check valve for PX0-0 NC emperature sensor for DIGIL compressor ccess valve / - Liebert PDX - PD

121 Refrigerant and Hydraulic Circuits Fig.. - Refrigerant circuit F version - Dual circuits - andem DIGIL compressors - EEV ONLY WIH REHEING COIL OPION 0 CIRC. CIRC. 0 0 NDEM NDEM COMPR. 9 FG DIGIL COMPR. FG 9 COMPR. DIGIL COMPR. 9 9 COOLING WER INLE COOLING WER OULE DESCRIPION Compressor Crankcase heater High pressure switch (HP) Water cooled condenser Liquid receiver ccess valve / Safety valve Filter dryer 9 Sight glass 0 Electronic expansion valve (EEV) emperature sensor for EEV Check valve Reheating coil (optional) DESCRIPION Evaporator Low pressure transducer Reheating solenoid valve (optional) Condensing regulation water valve 9 Pressure transducer condensing regulation 0 Chilled water coil Chilled water -way valve Manual bleed valve Inlet water sensor Check valve 0 bar ( psi) NC emperature sensor for DIGIL compressor ccess valve / Liebert PDX - PD

122 Refrigerant and Hydraulic Circuits Fig.. - Refrigerant circuit D version - Single circuit - Single compressor - XV ONLY WIH REHEING COIL OPION 0 OPION KI -WY CW VLVE FG SUPPLY LIMI COOLING WER INLE COOLING WER OULE SUPPLY LIMI CONDENSING UNI DESCRIPION Compressor Crankcase heater High pressure switch (HP) ir cooled condenser Liquid receiver ccess valve / Safety valve Filter dryer 9 Sight glass 0 hermostatic expansion valve Shut-off solenoid valve Check valve DESCRIPION Shut-off valve Reheating coil (optional) Evaporator Low pressure transducer Reheating solenoid valve (optional) ccess valve / 9 Chilled water coil 0 Manual bleed valve Chilled water -way valve Inlet water sensor lind disk - only with optional -way CW valve - Liebert PDX - PD

123 Refrigerant and Hydraulic Circuits Fig.. - Refrigerant circuit D version - Single circuit - Single compressor - EEV ONLY WIH REHEING COIL OPION 0 OPION KI -WY CW VLVE FG COOLING WER INLE COOLING WER OULE SUPPLY LIMI SUPPLY LIMI CONDENSING UNI DESCRIPION Compressor Crankcase heater High pressure switch (HP) ir cooled condenser Liquid receiver ccess valve / Safety valve Filter dryer 9 Sight glass 0 Electronic expansion valve (EEV) emperature sensor for EEV Check valve DESCRIPION Shut-off valve Reheating coil (optional) Evaporator Low pressure transducer EEV Reheating solenoid valve (optional) ccess valve / 9 Chilled water coil 0 Manual bleed valve Chilled water -way valve Inlet water sensor lind disk - only with optional -way CW valve Liebert PDX - PD

124 Refrigerant and Hydraulic Circuits Fig.. - Refrigerant circuit D version - Single circuit - Single DIGIL compressor - XV ONLY WIH REHEING COIL OPION 0 OPION KI -WY CW VLVE 9 0 DIGIL COMPR. 9 FG SUPPLY LIMI COOLING WER INLE COOLING WER OULE SUPPLY LIMI CONDENSING UNI DESCRIPION Compressor Crankcase heater High pressure switch (HP) ir cooled condenser Liquid receiver ccess valve / Safety valve Filter dryer 9 Sight glass 0 hermostatic expansion valve Shut-off solenoid valve Check valve Shut-off valve DESCRIPION Reheating coil (optional) Evaporator Low pressure transducer Reheating solenoid valve (optional) ccess valve / 9 Chilled water coil 0 Manual bleed valve Chilled water -way valve Inlet water sensor High pressure transducer NC emperature sensor for DIGIL compressor lind disk - only with optional -way CW valve - Liebert PDX - PD

125 Refrigerant and Hydraulic Circuits Fig.. - Refrigerant circuit D version - Single circuit - Single DIGIL compressor - EEV ONLY WIH REHEING COIL OPION 0 OPION KI -WY CW VLVE 9 0 DIGIL COMPR. 9 FG COOLING WER INLE COOLING WER OULE SUPPLY LIMI SUPPLY LIMI CONDENSING UNI DESCRIPION Compressor Crankcase heater High pressure switch (HP) ir cooled condenser Liquid receiver ccess valve / Safety valve Filter dryer 9 Sight glass 0 Electronic expansion valve (EEV) emperature sensor for EEV Check valve Shut-off valve Liebert PDX - PD DESCRIPION Reheating coil (optional) Evaporator Low pressure transducer EEV Reheating solenoid valve (optional) ccess valve / 9 Chilled water coil 0 Manual bleed valve Chilled water -way valve Inlet water sensor High pressure transducer NC emperature sensor for DIGIL compressor lind disk - only with optional -way CW valve -

126 Refrigerant and Hydraulic Circuits Fig..9 - Refrigerant circuit D version - Single circuit - andem DIGIL compressors - EEV ONLY WIH REHEING COIL OPION 0 OPION KI -WY CW VLVE NDEM 9 0 COMPR. DIGIL COMPR. SUPPLY LIMI 9 FG COOLING WER INLE COOLING WER OULE SUPPLY LIMI CONDENSING UNI DESCRIPION Compressor Crankcase heater High pressure switch (HP) ir cooled condenser Liquid receiver ccess valve / Safety valve Filter dryer 9 Sight glass 0 Electronic expansion valve (EEV) emperature sensor for EEV Check valve Shut-off valve DESCRIPION Reheating coil (optional) Evaporator Low pressure transducer EEV Reheating solenoid valve (optional) ccess valve / 9 Chilled water coil 0 Manual bleed valve Chilled water -way valve Inlet water sensor High pressure transducer NC emperature sensor for DIGIL compressor lind disk - only with optional -way CW valve - 9 Liebert PDX - PD

127 Refrigerant and Hydraulic Circuits Fig..0 - Refrigerant circuit D version - Dual circuits - Single compressors - XV ONLY WIH REHEING COIL OPION 0 OPION KI -WY CW VLVE 9 CIRC. 0 0 CIRC. SUPPLY LIMI 9 FG FG 9 COOLING WER INLE COOLING WER OULE SUPPLY LIMI CONDENSING UNI CONDENSING UNI DESCRIPION Compressor Crankcase heater High pressure switch (HP) ir cooled condenser Liquid receiver ccess valve / Safety valve Filter dryer 9 Sight glass 0 hermostatic expansion valve Shut-off solenoid valve Check valve DESCRIPION Shut-off valve Reheating coil (optional) Evaporator Low pressure transducer Reheating solenoid valve (optional) ccess valve / 9 Chilled water coil 0 Manual bleed valve Chilled water -way valve Inlet water sensor lind disk - only with optional -way CW valve Liebert PDX - PD

128 Refrigerant and Hydraulic Circuits Fig.. - Refrigerant circuit D version - Dual circuits - Single compressors - EEV ONLY WIH REHEING COIL OPION 0 OPION KI -WY CW VLVE 9 CIRC. CIRC FG FG 9 SUPPLY LIMI COOLING WER INLE COOLING WER OULE SUPPLY LIMI CONDENSING UNI CONDENSING UNI DESCRIPION Compressor Crankcase heater High pressure switch (HP) ir cooled condenser Liquid receiver ccess valve / Safety valve Filter dryer 9 Sight glass 0 Electronic expansion valve (EEV) emperature sensor for EEV Check valve DESCRIPION Shut-off valve Reheating coil (optional) Evaporator Low pressure transducer EEV Reheating solenoid valve (optional) ccess valve / 9 Chilled water coil 0 Manual bleed valve Chilled water -way valve Inlet water sensor lind disk - only with optional -way CW valve - Liebert PDX - PD

129 Refrigerant and Hydraulic Circuits Fig.. - Refrigerant circuit D version - Dual circuits - Single +DIGIL compressors - XV ONLY WIH REHEING COIL OPION 0 OPION KI -WY CW VLVE 9 CIRC. 0 0 CIRC. SUPPLY LIMI COMPR. 9 FG FG 9 DIGIL COMPR. COOLING WER INLE COOLING WER OULE SUPPLY LIMI CONDENSING UNI CONDENSING UNI DESCRIPION Compressor Crankcase heater High pressure switch (HP) ir cooled condenser Liquid receiver ccess valve / Safety valve Filter dryer 9 Sight glass 0 hermostatic expansion valve Shut-off solenoid valve Check valve Shut-off valve Reheating coil (optional) DESCRIPION Evaporator Low pressure transducer Reheating solenoid valve (optional) ccess valve / 9 Chilled water coil 0 Manual bleed valve Chilled water -way valve Inlet water sensor High pressure transducer Check valve (only for PX0-0) NC emperature sensor for DIGIL compressor lind disk - only with optional -way CW valve Liebert PDX - PD

130 Refrigerant and Hydraulic Circuits Fig.. - Refrigerant circuit D version - Dual circuits - Single +DIGIL compressors - EEV ONLY WIH REHEING COIL OPION 0 OPION KI -WY CW VLVE 9 CIRC. 0 0 CIRC. COMPR. DIGIL COMPR. 9 FG FG 9 COOLING WER INLE COOLING WER OULE SUPPLY SUPPLY LIMI LIMI CONDENSING UNI CONDENSING UNI DESCRIPION Compressor Crankcase heater High pressure switch (HP) ir cooled condenser Liquid receiver ccess valve / Safety valve Filter dryer 9 Sight glass 0 Electronic expansion valve (EEV) emperature sensor for EEV Check valve Shut-off valve Reheating coil (optional) DESCRIPION Evaporator Low pressure transducer Reheating solenoid valve (optional) High pressure transducer 9 Chilled water coil 0 Manual bleed valve Chilled water -way valve Inlet water sensor ccess valve / Check valve (only for PX0-0) NC emperature sensor for DIGIL compressor lind disk - only with optional -way CW valve - Liebert PDX - PD

131 Refrigerant and Hydraulic Circuits Fig.. - Refrigerant circuit D version - Dual circuits - andem DIGIL compressors - EEV ONLY WIH REHEING COIL OPION OPION KI -WY CW VLVE 0 9 CIRC. CIRC. NDEM NDEM 0 0 COMPR. SUPPLY LIMI DIGIL COMPR. 9 FG FG 9 COMPR. DIGIL COMPR. COOLING WER INLE COOLING WER OULE SUPPLY LIMI CONDENSING UNI CONDENSING UNI DESCRIPION Compressor Crankcase heater High pressure switch (HP) ir cooled condenser Liquid receiver ccess valve / Safety valve Filter dryer 9 Sight glass 0 Electronic expansion valve (EEV) emperature sensor for EEV Check valve Shut-off valve DESCRIPION Reheating coil (optional) Evaporator Low pressure transducer Reheating solenoid valve (optional) ccess valve / 9 Chilled water coil 0 Manual bleed valve Chilled water -way valve Inlet water sensor High pressure transducer NC emperature sensor for DIGIL compressor lind disk - only with optional -way CW valve Liebert PDX - PD

132 Refrigerant and Hydraulic Circuits Fig.. - Refrigerant circuit H version - Single circuit - Single compressor - XV ONLY WIH REHEING COIL OPION OPION KI -WY CW VLVE FG OPION -WY VLVE OPION -WY VLVE 9 WER OULE COOLING WER INLE COOLING WER OULE WER INLE DESCRIPION Compressor Crankcase heater High pressure switch (HP) Water cooled condenser Liquid receiver ccess valve / Safety valve Filter dryer 9 Sight glass 0 hermostatic expansion valve Shut-off solenoid valve Check valve Reheating coil (optional) DESCRIPION Evaporator Low pressure transducer Reheating solenoid valve (optional) Condensing regulation water valve 9 Pressure transducer condensing regulation 0 Chilled water coil Chilled water -way valve Inlet water sensor Manual bleed valve Check valve 0 bar ( psi) lind disk - only with optional -way valve ccess valve / lind disk - only with optional -way CW valve - Liebert PDX - PD

133 Refrigerant and Hydraulic Circuits Fig.. - Refrigerant circuit H version - Single circuit - Single compressor - EEV ONLY WIH REHEING COIL OPION OPION KI -WY CW VLVE FG OPION -WY VLVE OPION -WY VLVE 9 WER OULE COOLING WER INLE COOLING WER OULE.X WER INLE DESCRIPION Compressor Crankcase heater High pressure switch (HP) Water cooled condenser Liquid receiver ccess valve / Safety valve Filter dryer 9 Sight glass 0 Electronic expansion valve (EEV) emperature sensor for EEV Check valve Reheating coil (optional) Liebert PDX - PD DESCRIPION Evaporator Low pressure transducer Reheating solenoid valve (optional) Condensing regulation water valve 9 Pressure transducer condensing regulation 0 Chilled water coil Chilled water -way valve Inlet water sensor Manual bleed valve Check valve 0 bar ( psi) lind disk - only with optional -way valve ccess valve / lind disk - only with optional -way CW valve -

134 Refrigerant and Hydraulic Circuits Fig.. - Refrigerant circuit H version - Single circuit - Single DIGIL compressor - XV ONLY WIH REHEING COIL OPION OPION KI -WY CW VLVE 0 0 DIGIL COMPR. 9 FG OPION -WY VLVE OPION -WY VLVE 9 WER OULE COOLING WER INLE COOLING WER OULE WER INLE DESCRIPION Compressor Crankcase heater High pressure switch (HP) Water cooled condenser Liquid receiver ccess valve / Safety valve Filter dryer 9 Sight glass 0 hermostatic expansion valve Shut-off solenoid valve Check valve Reheating coil (optional) Evaporator DESCRIPION Low pressure transducer Reheating solenoid valve (optional) Condensing regulation water valve 9 Pressure transducer condensing regulation 0 Chilled water coil Chilled water -way valve Inlet water sensor Manual bleed valve Check valve 0 bar ( psi) lind disk - only with optional -way valve NC emperature sensor for DIGIL compressor ccess valve / lind disk - only with optional -way CW valve - Liebert PDX - PD

135 Refrigerant and Hydraulic Circuits Fig.. - Refrigerant circuit H version - Single circuit - Single DIGIL compressor - EEV ONLY WIH REHEING COIL OPION OPION KI -WY CW VLVE 0 0 DIGIL COMPR. 9 FG OPION -WY VLVE COOLING WER INLE COOLING WER OULE OPION -WY VLVE 9 WER OULE WER INLE DESCRIPION Compressor Crankcase heater High pressure switch (HP) Water cooled condenser Liquid receiver ccess valve / Safety valve Filter dryer 9 Sight glass 0 Electronic expansion valve (EEV) emperature sensor for EEV Check valve Reheating coil (optional) Evaporator Liebert PDX - PD DESCRIPION Low pressure transducer Reheating solenoid valve (optional) Condensing regulation water valve 9 Pressure transducer condensing regulation 0 Chilled water coil Chilled water -way valve Inlet water sensor Manual bleed valve Check valve 0 bar ( psi) lind disk - only with optional -way valve NC emperature sensor for DIGIL compressor ccess valve / lind disk - only with optional -way CW valve -

136 Refrigerant and Hydraulic Circuits Fig..9 - Refrigerant circuit H version - Single circuit - andem DIGIL compressors - EEV ONLY WIH REHEING COIL OPION OPION KI -WY CW VLVE 0 NDEM 0 COMPR. DIGIL COMPR. 9 FG OPION -WY VLVE COOLING WER INLE COOLING WER OULE OPION -WY VLVE 9 WER OULE WER INLE DESCRIPION Compressor Crankcase heater High pressure switch (HP) Water cooled condenser Liquid receiver ccess valve / Safety valve Filter dryer 9 Sight glass 0 Electronic expansion valve (EEV) emperature sensor for EEV Check valve Reheating coil (optional) Evaporator DESCRIPION Low pressure transducer Reheating solenoid valve (optional) Condensing regulation water valve 9 Pressure transducer condensing regulation 0 Chilled water coil Chilled water -way valve Inlet water sensor Manual bleed valve Check valve 0 bar ( psi) lind disk - only with optional -way valve NC emperature sensor for DIGIL compressor ccess valve / lind disk - only with optional -way CW valve - 9 Liebert PDX - PD

137 Refrigerant and Hydraulic Circuits Fig..0 - Refrigerant circuit H version - Dual circuits - Single compressors - XV ONLY WIH REHEING COIL OPION OPION KI -WY CW VLVE CIRC. CIRC. OPION -WY VLVE 9 FG FG 9 OPION -WY VLVE COOLING WER INLE COOLING WER OULE OPION -WY VLVE 9 WER OULE 9 OPION -WY VLVE WER INLE DESCRIPION Compressor Crankcase heater High pressure switch (HP) Water cooled condenser Liquid receiver ccess valve / Safety valve Filter dryer 9 Sight glass 0 hermostatic expansion valve Shut-off solenoid valve Check valve Reheating coil (optional) DESCRIPION Evaporator Low pressure transducer Reheating solenoid valve (optional) Condensing regulation water valve 9 Pressure transducer condensing regulation 0 Chilled water coil Chilled water -way valve Inlet water sensor Manual bleed valve Check valve 0 bar ( psi) lind disk - only with optional -way valve ccess valve / lind disk - only with optional -way CW valve Liebert PDX - PD

138 Refrigerant and Hydraulic Circuits Fig.. - Refrigerant circuit H version - Dual circuits - Single compressors - EEV ONLY WIH REHEING COIL OPION OPION KI -WY CW VLVE 0 CIRC. 0 0 CIRC. OPION -WY VLVE 9 FG FG 9 OPION -WY VLVE COOLING WER INLE COOLING WER OULE OPION -WY VLVE 9 9 OPION -WY VLVE WER OULE WER INLE DESCRIPION Compressor Crankcase heater High pressure switch (HP) Water cooled condenser Liquid receiver ccess valve / Safety valve Filter dryer 9 Sight glass 0 Electronic expansion valve (EEV) emperature sensor for EEV Check valve Reheating coil (optional) DESCRIPION Evaporator Low pressure transducer Reheating solenoid valve (optional) Condensing regulation water valve 9 Pressure transducer condensing regulation 0 Chilled water coil Chilled water -way valve Inlet water sensor Manual bleed valve Check valve 0 bar ( psi) lind disk - only with optional -way valve ccess valve / lind disk - only with optional -way CW valve - Liebert PDX - PD

139 Refrigerant and Hydraulic Circuits Fig.. - Refrigerant circuit H version - Dual circuits - Single +DIGIL compressors - XV ONLY WIH REHEING COIL OPION OPION KI -WY CW VLVE 9 0 CIRC. 0 0 CIRC. OPION -WY VLVE COMP. OPION -WY VLVE 9 FG FG WER OULE OPION -WY VLVE DIGIL COMPR. COOLING WER INLE OPION -WY VLVE COOLING WER OULE WER INLE DESCRIPION Compressor Crankcase heater High pressure switch (HP) Water cooled condenser Liquid receiver ccess valve / Safety valve Filter dryer 9 Sight glass 0 hermostatic expansion valve Shut-off solenoid valve Check valve Reheating coil (optional) Evaporator DESCRIPION Low pressure transducer Reheating solenoid valve (optional) Condensing regulation water valve 9 Pressure transducer condensing regulation 0 Chilled water coil Chilled water -way valve Inlet water sensor Manual bleed valve Check valve 0 bar ( psi) lind disk - only with optional -way valve Check valve for PX0-0 NC emp. sensor for DIGIL compr. ccess valve / 9 lind disk - only with optional -way CW valve Liebert PDX - PD

140 Refrigerant and Hydraulic Circuits Fig.. - Refrigerant circuit H version - Dual circuits - Single +DIGIL compressors - EEV ONLY WIH REHEING COIL OPION OPION KI -WY CW VLVE 9 0 CIRC. 0 0 CIRC. OPION -WY VLVE COMPR. 9 FG FG 9 DIGIL COMPR. OPION -WY VLVE COOLING WER INLE COOLING WER OULE OPION -WY VLVE 9 WER OULE 9 OPION -WY VLVE WER INLE DESCRIPION Compressor Crankcase heater High pressure switch (HP) Water cooled condenser Liquid receiver ccess valve / Safety valve Filter dryer 9 Sight glass 0 Electronic expansion valve (EEV) emperature sensor for EEV Check valve Reheating coil (optional) Evaporator DESCRIPION Low pressure transducer Reheating solenoid valve (optional) Condensing regulation water valve 9 Pressure transducer condensing regulation 0 Chilled water coil Chilled water -way valve Inlet water sensor Manual bleed valve Check valve 0 bar ( psi) lind disk - only with optional -way valve Check valve for PX0-0 NC emp. sensor for DIGIL compr. ccess valve / 9 lind disk - only with optional -way CW valve - Liebert PDX - PD

141 Refrigerant and Hydraulic Circuits Fig.. - Refrigerant circuit H version - Dual circuits - andem DIGIL compressors - EEV ONLY WIH REHEING COIL OPION OPION KI -WY CW VLVE 0 CIRC. CIRC. 0 0 NDEM NDEM COMPR. OPION -WY VLVE 9 FG FG 9 DIGIL COMPR. COMPR. OPION -WY VLVE DIGIL COMPR. COOLING WER INLE COOLING WER OULE OPION -WY VLVE 9 WER OULE 9 OPION -WY VLVE WER INLE DESCRIPION Compressor Crankcase heater High pressure switch (HP) Water cooled condenser Liquid receiver ccess valve / Safety valve Filter dryer 9 Sight glass 0 Electronic expansion valve (EEV) emperature sensor for EEV Check valve Reheating coil (optional) Evaporator DESCRIPION Low pressure transducer Reheating solenoid valve (optional) Condensing regulation water valve 9 Pressure transducer condensing regulation 0 Chilled water coil Chilled water -way valve Inlet water sensor Manual bleed valve Check valve 0 bar ( psi) lind disk - only with optional -way valve NC emperature sensor for DIGIL compressor ccess valve / lind disk - only with optional -way CW valve Liebert PDX - PD

142 Refrigerant and Hydraulic Circuits Fig.. - Hydraulic circuit hot water way (position for down flow unit) (position for up flow unit) HO WER OULE HO WER INLE Components Reheating coil On/off -way valve Manual bleed valve - Liebert PDX - PD

143 Refrigerant and Hydraulic Circuits Fig.. - Refrigerant circuit for head pressure control valve installation PX0 PX0 (FOR ECH REFRIGERN CIRCUI) GS LINE C D (From compressor) R LIQUID LINE (o liquid receiver) PX0 (FOR ECH REFRIGERN CIRCUI) GS LINE (From compressor) C D R C D R LIQUID LINE (o liquid receiver) Components ir cooled condenser Head pressure control valve Check valve Liebert PDX - PD

144 ccessories ccessories Silencing cartridges for supply hoods See Chap. High efficiency filters See Chap. 9 Filter holding duct See Chap. 9 Fresh air kit See Chap. 9 ir Economizer he ir Economizer comprises an extension hood 0 height with a dampers system installable on top of the units. his system allows the free-cooling taking advantage of cool outdoor air to condition indoor space. he icom checks the external air condition (temperature/humidity) and depending on environment conditions controls the dampers system mixing the indoor unit air with cool outdoor air; it is possible to have 00% outdoor air, mixed outdoor air and water cooling or 00% water cooling. he ir Economizer system delivers high energy savings reducing or eliminating the cost of refrigerant pumping. o use the ir Economizer the building has to be equipped with suitable air ducts and the dampers system modulating permits to use different channel configurations. Note: it is required a flange 0 high to connect the air economizer to the unit (see Connecting Flange). ir economizer available configuration: - Liebert PDX - PD

145 ccessories Horizontal hood with grill supply plenum with horizontal air flow can be installed on top of the unit. he 00 high plenum has the same design as the unit; it consists of sandwich panels lined with non-flaable insulation material of class 0 (ISO.), density 0 kg/m. It is equipped with a double deflection grill. ase modules 00 high base module can be supplied on request to support Liebert PDX Upflow and at the same time allow pipework to enter the base of the unit when a raised floor is not installed. ase Module h 00/00 with rear air intake base module can be supplied on request to allow Liebert PDX Upflow to work with a rear/bottom or bottom air intake. he rear/bottom air intake base module is 00 high, the bottom air intake base module is 00 high. his accessory at the same time supports the unit allowing the piping connection when a raised floor is not installed. Note that in this case the air conditioning unit must be ordered with a blind front panel and an open basement. Vertical flow extension hood n extension hood can be supplied on request and can be installed on top of the unit. It is available with different height: 00; 00; 00; 00; 900. It has the same design as the unit and consists of sandwich panels lined with non-flaable insulation material of class 0 (ISO.), density 0 kg/m. Note: on units it is required a flange 0 high to connect the extension hood to the unit (see Connecting Flange). Liebert PDX - PD