Air Handling Unit Kit

Transcription

1 Air Handling Unit Kit Installation Instructions AL PV ºC OUT ATU SV ºC SET

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4 Table of Contents General information and safety instructions Introduction Structure and meaning of notices and symbols Safety instructions Warranty policy... 9 Ventilation theory and air handling units Purpose of air-conditioning Purpose of ventilation Mechanical ventilation systems....4 Air handling units Product description General description Scope of supply System lineup AHU Kit dimensions and exterior view Wiring layout AHU Kit enclosure configuration System Overview Technical data and limitations Installation Installation of AHU Kit Installation of refrigerant piping Installation of expansion valve Installation of thermistors Installation of thermistor on gas pipe Installation of thermistor on liquid pipe Installation of thermistor on heat exchanger pipe middle Installation of thermistor for suction and discharge air stream Disconnection of jumper on outdoor unit PCB Electrical Wiring General precautions on wiring Recommended wire lengths and diameters Wiring system diagrams Terminal block layout Connection of wiring to terminals

5 5.6 Connection of external signal lines Electric circuit examples Test Run Control Remote controller Thermostat Control and display elements Operation Initial Settings Error Codes Maintenance and Service Technical data

6 General information and safety instructions General information and safety instructions. Introduction This document contains the installation instructions for the Panasonic AHU Kits. The following products are covered in this documentation: PAW-60MAH / PAW-60MAHL PAW-80MAH / PAW-80MAHL PAW-560MAH / PAW-560MAHL PAW-80PAH / PAW-80PAHL AHU Kits connect Panasonic ECOi, ECO G and PACi outdoor units to third-party air handling unit systems, using the same refrigerant circuit as the VRF system. Application examples for Panasonic AHU Kits are hotels, offices, server rooms or all large buildings where air quality control such as humidity control and fresh air is needed. The installation should be performed only by qualified electricians in strict accordance with the installation instructions and especially with the safety instructions given in this document. Where information in this document does not apply to all three VRF system ranges, but only to either ECOi, ECO G or PACi systems, this will be indicated by the relevant product range logos: i Important: Validity of this document Due to the ongoing development and innovation of Panasonic products, this document and all the information contained herein is preliminary (as at December 04). It may not reflect the current status of the relevant products. Preliminary or missing information will be updated and added on an ongoing basis and published at the discretion of Panasonic. 6

7 General information and safety instructions. Structure and meaning of notices and symbols Safety notices WARNING This indicates a hazardous situation which, if not avoided, could result in death or serious injury. CAUTION This indicates a hazardous situation which, if not avoided, could result in minor or moderate injury.! NOTICE This indicates a hazardous situation which, if not avoided, could result in property damage. Other notices i Important This indicates other important information or references to other useful sources of technical data and descriptions. 7

8 General information and safety instructions.3 Safety instructions WARNING The following precautions need to be followed strictly, in order to avoid hazardous situations, which could result in death or serious injury. Electric shock or fire may result from inadequate or incorrect installation or wiring procedures. System installation must only be performed by an experienced electrician. Arrange installation at the dealer where the system was purchased or use a professional installer. System installation must be performed in strict accordance to the installation procedures described in this document. Damage to the circuit breakers may result from incorrect electrical wiring, insufficient electrical circuit capacity or use with other electrical devices. Always use a dedicated branch circuit for electrical wiring. Strictly avoid using other electrical devices within the same electrical circuit. Make sure the electrical circuit used has sufficient capacity. Overheating or fire may result if connections or attachments are not secure. Use the specified cables (type and wiring diameter) for the electrical connections, and securely connect the cables. Run and fasten the cables securely so that external forces or pressure placed on the cables will not be transmitted to the connection terminals. Suffocation can result if refrigerant gas leaks and exceeds the limit density in a small room. Installation of the refrigerant piping must only be performed by an experienced, qualified installer to minimize the risk of leaks. Install so that even if refrigerant gas leaks into the room, it will not exceed the limit density of 0.44 kg/m 3, in accordance with the local regulatioins for facility air conditioning equipment. If the refrigerant gas concentration does exceed the limit density, do one of the following: install an opening in a neighbouring room or install ventilation equipment triggered by gas leak detection sensors or install an automatic pump-down system provided by the manufacturer of the equipment Poisonous gas can result if refrigerant gas comes into contact with fire. After installation of refrigerant pipes, perform a dry nitrogen gas sealing test to check that there are no leaks. Ventilate the work area if refrigerant gas leaks during installation. 8

9 General information and safety instructions Prevent the refrigerant gas from coming into contact with a fan heater, stove, range, or other source of fire. Incorrect installation can result in falling equipment causing damage, injuries or other accidents. Install in a location that is fully strong enough to support the weight of the equipment. Perform installation that is secure enough to withstand earthquakes, whirlwinds, storms and other strong winds. Frostbite injuries may result from coming into direct contact with the refrigerant gas. When handling refrigerant gas, be careful not to touch the refrigerant gas directly. CAUTION The following precautions need to be followed strictly, in order to avoid hazardous situations, which could result in minor or moderate injury. Electric shock, shock and fires may result from incomplete grounding of the equipment or failure to install an earth leakage breaker. Be sure to ground equipment properly. Do not attach ground wires to gas pipes, water pipes, lightning arresters, or telephone ground lines. Always install an earth leakage breaker. Ignition of flammable gas or inflammable materials may result from installing the system in locations where flammable gas can generate, enter, build up, or leak. Do not install the system in locations where flammable gas can occur in any way. Do not install in locations where volatile inflammable materials are handled..4 Warranty policy We can be held responsible for the quality and performance of the AHU Kit we supply. However, we cannot be held responsible for the performances, operations and machine controls of your complete AHU system which incorporates our AHU Kit, nor for the components used in the refrigerant cycle of your AHU system (including, but not limited to, compressors, high-pressure switches, check valves, strainers, expansion valves, solenoid valves, 4-way valves, capillary tubes, accumulator tanks, and heat exchanger tubes), nor for any damages and defects caused in the process of installing our AHU Kit, by the system design and/or during assembly of your AHU system. We do not publish the certificate to show conformity to the EMC and the product safety requirements applicable to your complete AHU system. 9

10 Ventilation theory and air handling units Ventilation theory and air handling units. Purpose of air-conditioning The purpose of air-conditioning is to provide comfortable indoor air conditions for the room occupants and to provide energy saving potentials for the owner. Comfort If room occupants feel comfortable in a given room, depends mainly on the following two factors: air temperature relative air humidity However, optimum working or living conditions do not only exist at a specific setpoint of room temperature and room humidity, but also within a certain band width of the setpoint. A temperature setpoint of C and a relative humidity setpoint of 45 % with variations of ± C and ±5 %rh respectively are typical levels used for office spaces. Also, at high temperatures, maximum limitation of absolute humidity should be provided to avoid muggy conditions. Typically, this limit value lies at about 0 g/kg (H O). Absolute humidity Cooling and humdifying Cooling only Humdifying and reheating, if required Temperature Humdifying only Heating and humdifying 4 C Comfort range 35 %rh 0 C Heating only 65 %rh rh = relative humidity Energy savings Besides the advantages in terms of indoor air quality, air conditioning offers also an energy saving potential. For example, while uncontrolled ventilation through open windows leads to large amounts of heat being lost to the outside during the heating season or gained from the outside during the cooling season, air conditioning systems provide possibilities to utilize the extra free energy in heat recovery modules so that overall operating costs will be reduced. The larger the area of the comfort range, the better the energy saving opportunities.. Purpose of ventilation The purpose of ventilation is to introduce fresh air from outside into a building or room, in order to control indoor air quality and thermal comfort. 0

11 Ventilation theory and air handling units Ventilation demands Ventilation must meet the following demands: Provide outside air (oxygen) for breathing Control of indoor air contaminants Covering of the building s thermal loads (temperature and humidity control) Setting of uniform conditions in the occupied zone As the outside or ambient air varies in temperature, humidity, contamination etc., it must be specifically conditioned before being supplied to the target room, so that it meets the defined indoor air requirements. Conditioning means treating the ambient air by filtering, heating, cooling, humidifying, dehumidifying etc. Supply air Room with defined requirements: Temperature Humidity Pressure Ventilation Return air While the conditioned air (supply air) is being introduced to the building or room, return air, which no longer meets the defined indoor air requirements (e.g. in terms of temperature or humidity) is withdrawn from the room and rejected to the outside. Thus, a constant indoor air exchange is maintained by the mechanical ventilation system. Recommended indoor air requirements Organizations concerned with setting quality standards for the HVAC industry (Heating, Ventilation and Air Conditioning), like e.g. ASHRAE or Eurovent, give recommendations for indoor air quality criteria depending on the intended use of the room. The ASHRAE recommendations for residential and commercial applications are as follows: Temperature: ranging from 0 to 4 C Humidity: ranging from 35 to 65 %rh Pressure: slightly positive pressure to reduce outside air infiltration Ventilation: ranging from 4 to 8 complete air changes per hour In order to fulfil the ventilation demands and to meet the recommended indoor air requirements, mechanical ventilation systems comprising air filters, supply and return air ventilators, cooling

12 Ventilation theory and air handling units and heating coils, variable air volume (VAV) valves, thermostats and other air-handling equipment are used. Exhaust air Outside air Air handling unit (AHU) Dampers Return air fan Filter Supply air fan Cooling Heating VAV valve VAV valve Thermostat Thermostat Solar radiation Wind Return air.3 Mechanical ventilation systems Main components of mechanical ventilation systems The main components of a mechanical ventilation system are the following: Air handling unit (AHU) Air ducts Air distribution elements Exhaust air Outside air Return air Supply air Types of mechanical ventilation systems Mechanical ventilation systems can be subdivided based on the pressure relation between the ventilated space and the ambient environment.

13 Ventilation theory and air handling units In most cases, the pressure in ventilated spaces is equal to the atmospheric pressure of the outside. This means that the air-flow delivered to a space equals the airflow brought back from a space. Such spaces are described as neutral or balanced. However, in mechanical ventilation systems the supply air and return air flows might be sized differently, when necessary. In these cases, a building can be either pressurized or depressurized: Pressurized: The pressure within the ventilated space is positive (higher) compared to the outside pressure. This means, a certain amount of air is exfiltrated from the space through openings and cracks. Examples are clean rooms, operation theatres etc. Depressurized: The pressure within the ventilated space is negative (lower) compared to the outside pressure. This means, a certain amount of air is infiltrated to the space through openings and cracks. Examples are kitchens, toilets, laboratories working with toxic substances etc..4 Air handling units Main components of air handling units The main components of an air handling unit are shown in the following graphic. Air handling unit (AHU) Supply air fan (SAF) Cooling Coil (CC) Outside air (OA) Dampers (D) Mixed air (MA) Recirculated air (CA) Filter (F) Heating Coil (HC) Supply air (SA) Exhaust air (EA) Dampers (D) Dampers (D) Return air (RA) 3

14 Ventilation theory and air handling units Air handling units can be manufactured targeted at the specific purpose for which they will be used. Possible features comprise, but are not limited to the following non-exhaustive list of characteristics: Construction: monoblock or split in separate delivery sections Installation location: indoor, outdoor Execution: horizontal, vertical, double deck or side-by-side Design: e.g. standard, hygienic, explosion-proof or anti-grease DX coil: with or without (see below the example of an AHU system with DX coil) Heat recovery: with or without Size: ranging from 50 m 3 /h to m 3 /h Applying European standards: EN886; EN3053 RA EA OA SA Sirocco fan Turbo fan Casing Air flow Damper Air filter DX coil Humidifier Main types of air handling units Supply type Exhaust type 4

15 Ventilation theory and air handling units Supply/Exhaust type with cross-flow heat exchanger Supply/Exhaust type with mixing chamber Supply exhaust type with rotary heat exchanger 5

16 Ventilation theory and air handling units Supply/Exhaust type with glycol heat exchanger Connecting AHU systems via the AHU Kit to ECOi/ECO G or PACi outdoor units The following graphic shows an example for connecting a third-party air handling unit via the Panasonic AHU Kit to Panasonic ECOi/ECO G or PACi outdoor units. External BMS AHU control kit 0 0 V capacity control PACi or ECOi/ECO G outdoor unit Air Handling Unit (AHU) Demand control on the outdoor unit managed by external 0 0 V signal This schematic layout applies to the advanced AHU Kit version only, because it features an in-built CZ-CAPBC interface handling the 0 0 V control. This enables two control alternatives: Capacity control through external BMS via 0 0 V signal Capacity control through in-built supply air or ambient temperature sensor As the light version of the AHU Kit does not include an in-built CZ-CAPBC interface for handling the 0 0 V control, this schematic layout does not apply to the light AHU Kit version. 6

17 Product description 3 Product description 3. General description AHU Kits connect Panasonic ECOi, ECO G and PACi outdoor units to third-party air handling unit systems, using the same refrigerant circuit as the VRF system. Application examples for Panasonic AHU Kits are hotels, offices, server rooms or all large buildings where air quality control such as humidity and temperature control and fresh air is needed. The Panasonic AHU Kits offer a wealth of connectivity possibilities so that they can be easily integrated into many systems. The new AHU Kit has been developed to better meet customer demand: Two versions available depending on the required functionality (light or advanced version) IP65 enclosure providing the possibility for outdoor installation 0 0 V demand control (included on the CZ-CAPBC interface)* Easy control by BMS * Only available with ECOi and PACi Elite units from 6 kw up to 4 kw (for PACi Elite units from 0/5 kw available on request) Features and benefits The system is controlled by the air intake (or room return air) temperature in the same way as a standard indoor unit. Selectable modes: Automatic / Cooling / Heating / Fan / Dry (equivalent to Cooling). Easy integration into BMS or AHU control systems using demand control: 40 to 5 % (5 % steps) of nominal current by 0 0 V input signal (advanced version only) Room supply air temperature can be controlled by the additional thermostat, its supply air temperature sensor and the 0 0 V input signal for enhanced comfort and efficiency (advanced version only). Target temperature setting based on ambient temperature with CZ-CAPBC using 0 0 V signal (advanced version only). Connectable with P-LINK system. Fan control signal from the PCB can be used for controlling the air volume of an external fan (High/Mid/Low and LL for Th-OFF). (Need to change the fan control circuit wiring at field.) Defrost operation signal, Thermo-ON/OFF states output Drain pump control (Drain-pump and the float switch to be supplied in local) Basic humidifier control output (humidifier field supplied) Alarm and operation output 3. Scope of supply The AHU Kits are supplied in two versions, light or advanced, and can be selected based on the required functionality. 7

18 Product description The light version, denominated by the letter L in the model name, contains the following components: IP65 case Control unit including transformer Relays Terminal boards Remote controller (CZ-RTC) PCBs for the expansion and RAP valves PCB for T0 connection (PAW-T0) Expansion valve (only for ECOi and ECO G) Refrigerant temperature sensors (E, E/E3) Air intake and air outlet temperature sensors (TA, BL) In addition to this, the advanced version, without the letter L in the model name, contains also the following components: Thermostat including an additional temperature sensor to be used either for room supply air or ambient air temperature Interface for 0 0 V control (CZ-CAPBC) The heat exchanger, fan and fan motor must be field supplied. Control functions provided as standard by integral components CZ-RTC Timer remote controller Operation-ON/OFF Mode selection Temperature setting Parameter settings Additional Thermostat (advanced version only) Target temperature setting based on ambient temperature with proportional integral logic* Demand control based on room supply air temperature to enhance comfort and efficiency* * Only one of these two options can be chosen at a time. 8

19 Product description CZ-CAPBC Mini seri-para I/O unit (advanced version only) Easy integration in external AHU control systems and BMS Demand control: 40 to 5 % (5 % steps) of nominal current by 0 0 V input signal* Target temperature setting by 0 0 V or 0 40 Ω input signal* Room supply air temperature output by 4 0 ma signal Mode select or/and ON/OFF control Fan operation control Operation status output/ Alarm output Thermostat ON/OFF control * Demand control by external BMS cannot be combined with the demand control or target temperature setting accomplished by the thermostat. However, if simultaneous demand control and target temperature setting is needed, this can only be achieved by using a second (optional) CZ-CAPBC interface. PAW-T0 PCB to connect to T0 connector Dry contact PCB for easy control of the unit Operation ON/OFF input signal Remote control prohibition Operation ON status output signal, maximum 30 V / 5 A (NO/NC) Alarm status output signal, maximum 30 V / 5 A (NO/NC) PAW-OCT, DC V outlet, OPTION terminal Output signal for Cooling/Heating/Fan status Output signal for Defrost operation indication Output signal for Thermostat-ON status Additional contacts available External humidifier control (ON/OFF) 30 V AC 3 A External fan control (ON/OFF) V DC External filter status signal potential free External float switch signal potential free External leakage detection sensor or TH. OFF contact potential free (possible usage for external blow out temperature control) 9

20 Product description 3.3 System lineup System lineup ECOi systems Capacity Outdoor unit combination AHU Kit combination HP kw 5 6 all ECOi outdoor units PAW-60MAH(L) 0 8 U-0MEE8 PAW-80MAH(L) 0 56 U-0MEE8 PAW-560MAH(L) U-6MEE8 U-4MEE8 PAW-560MAH(L) PAW-80MAH(L) 40 U-0MEE8 U-0MEE8 PAW-560MAH(L) PAW-560MAH(L) U-8MEE8 U-6MEE8 U-6MEE8 PAW-560MAH(L) PAW-560MAH(L) PAW-80MAH(L) U-0MEE8 U-0MEE8 U-0MEE8 PAW-560MAH(L) PAW-560MAH(L) PAW-560MAH(L) PAW-60MAH(L): PAW-60MAH(L) can be installed in combination with all ECOi -pipe and 3-pipe outdoor units like any other standard indoor unit. Mixed installation with standard indoor units is possible. However, in this case one additional RAP valve (CZ-P60RVK) must be installed in the unit connection pipe, unless the unit is exclusively used in cooling only operation. PAW-80MAH(L): Mixed installation with standard indoor units is possible. However, in this case two additional RAP valves ( x CZ-P60RVK) must be installed in the unit connection pipe, unless the unit is exclusively used in cooling only operation. Connection to ECOi 3-way systems is not allowed. 3 PAW-560MAH(L): Mixed installation with standard indoor units is not allowed. Connection to ECOi 3-way systems is not allowed. System lineup ECO G systems Capacity Outdoor unit AHU Kit HP kw 5 6 all ECO G outdoor units PAW-60MAH(L) 0 8 all ECO G outdoor units PAW-80MAH(L) 0 56 U-0GEE5 PAW-560MAH(L) 3 PAW-60MAH(L): PAW-60MAH(L) can be installed in combination with all ECO G outdoor units like any other standard indoor unit. Mixed installation with standard indoor units is possible. However, in this case one additional RAP valve (CZ-P60RVK) must be installed in the unit connection pipe, unless the unit is exclusively used in cooling only operation. PAW-80MAH(L): PAW-80MAH(L) an be installed in combination with all ECO G outdoor units like any other standard indoor unit. Mixed installation with standard indoor units is possible. However, in this case two additional RAP valves ( x CZ-P60RVK) must be installed in the unit connection pipe, unless the unit is exclusively used in cooling only operation. 3 PAW-560MAH(L): With PAW-560MAH(L), only -to- installations are allowed ( x U-0GEE5 + x PAW- 560MAH(L)). Combinations with more than outdoor unit or more than AHU Kit are not possible. Mixed installation with standard indoor units is not allowed. Connection to ECO G 3-way systems is not allowed. 0

21 Product description System lineup PACi systems Capacity (kw) PACi Standard Outdoor unit PACi Elite Single-phase units Three-phase units Single-phase units Three-phase units 5.0 U-50PEE5 6.0 U-60PEYE5 U-60PEE5A 7. U-7PEYE5 U-7PEE5A U-7PEE8A 0.0 U-00PEYE5 U-00PEYE8 U-00PEE5A U-00PEE8A.5 U-5PEYE5 U-5PEYE8 U-5PEE5A U-5PEE8A 4.0 U-40PEYE8 U-40PEE5A U-40PEE8A 0.0 U-00PEE8 5.0 U-50PEE8 AHU Kit PAW-80PAH(L) With PACi systems, only -to- installations are allowed ( x PACi outdoor unit + x PAW-80PAH(L)). Combinations with more than outdoor unit or more than AHU Kit are not possible. Mixed installation with standard indoor units is not allowed. 3.4 AHU Kit dimensions and exterior view AHU Kit dimensions Ø7 00 Ø4. x Ø5. x Front view (transparent cover removed) Side view

22 Product description Exterior view of the AHU Kit Expansion valve Thermistor x (Refrigerant: E, E3) Thermistor x (Air: TA, BL) AHU Kit including PCB, power transformer, terminal block Note: AHU Kit shown with transparent front cover removed. Thermistor x (Refrigerant: E, E) Thermistor (Air: TA)

23 Product description 3.5 Wiring layout Wiring layout ECOi and ECO G systems TERMINAL CONNECTOR 6P () TERMINAL TERMINAL TERMINAL PE L N U U R R EX EX Z5 Z3 OP3 Z M. M. M.3 M.4 M.5 M.6 COM DI DI DI3 COM DO COM DO PNK PNK SV/CN003 () CR-SV80A 3WAY () POWER () VLT TR 3 OC RC () () AC IN 3 () EXCT () WAY OP () () () PNL 3 T0 () () () TA E FAN TRANS-P () () CR-UXRP7B-P () (GRN) () () E3 BL FS FAN DRIVE TRANS-S () () FILTER GRN 7 5 Z Z 8 3 VLT VLT CZ-RTC R R CZ-CAPBC COM DO COM DO CN CN PMV HBS () () () () HU OPTION E T0 3 () PK-B PAW-T0 3 T0 4POL 4 3 () PK-A TR VLT - + TA TA E. E. E3. E3. BL BL FS FS FD FD FI FI HU HU ON ON ON3 ON4 ON5 ON6 PT0 PT9 PT8 TERMINAL PAW-60MAH t t t t TH TH TH4 TH5 TERMINAL PT00 TERMINAL CONNECTOR 6P () TERMINAL TERMINAL PE L N U U R R EX EX Z5 Z3 OP3 Z M. M. M.3 M.4 M.5 M.6 PNK PNK TR 3 OC RC () () AC IN 3 () EXCT () WAY OP () () () PNL 3 T0 () () () TA E FAN TRANS-P () () CR-UXRP7B-P () (GRN) () () E3 BL FS FAN DRIVE TRANS-S () () FILTER GRN SV/CN003 () CR-SV80A 3WAY () POWER () Z Z VLT VLT PMV HBS () () () () HU OPTION E T0 3 () PK-B PAW-T0 3 T0 4POL 4 3 () PK-A VLT VLT CZ-RTC R R TA TA E. E. E3. E3. BL BL FS FS FD FD FI FI HU HU ON ON ON3 ON4 ON5 ON6 PAW-60MAHL t t t t TH TH TH4 TH5 TERMINAL TH Air intake temperature sensor TH Indoor coil thermistor E TH4 Indoor coil thermistor E3 TH5 Air outlet temperature sensor PT00* Supply air temperature sensor CZ-RTC Remote controller TR-6* Thermostat * Not included in PAW-60MAHL CZ-CAPBC* CR-SV80A CR-UXRP7B-P PAW-T0 Z / Z TR External signal control PCB RAP valve control PCB Main PCB External signal control PCB Auxiliary power relay Power transformer 3

24 Product description TERMINAL CONNECTOR 6P () CONNECTOR 6P () TERMINAL TERMINAL TERMINAL PE L N U U R R EX EX Z5 Z3 OP3 Z M. M. M.3 M.4 M.5 M.6 M. M. M.3 M.4 M.5 COM DI DI DI3 COM DO COM DO PNK CZ-RTC COM DO COM DO SV () SV () OP3 CR-SV80B () Z Z 8 3 R R CZ-CAPBC CN - + 3WAY () POWER () VLT TR 3 OC RC () () AC IN 3 () EXCT () WAY OP () () () PNL 3 T0 () () () TA E GRN PNK CN VLT VLT VLT FAN TRANS-P TRANS-S PMV HBS () () () () () CR-UXRP7B-P () (GRN) () () () () () E3 BL FS FAN DRIVE FILTER HU OPTION E T0 3 () PK-B PAW-T0 3 T0 4POL 4 3 () PK-A TR TA TA E. E. E3. E3. BL BL FS FS FD FD FI FI HU HU ON ON ON3 ON4 ON5 ON6 PT0 PT9 PT8 TERMINAL PAW-80MAH t t t t TH TH TH4 TH5 TERMINAL PT00 TERMINAL CONNECTOR 6P () CONNECTOR 6P () TERMINAL TERMINAL PE L N U U R R EX EX Z5 Z3 OP3 Z M. M. M.3 M.4 M.5 M.6 M. M. M.3 M.4 M SV () SV () OP3 CR-SV80B () Z Z 8 3 3WAY () POWER () TR 3 OC RC () () AC IN 3 () EXCT () WAY OP () () () PNL 3 T0 () () () TA E GRN VLT PNK VLT VLT FAN TRANS-P TRANS-S PMV HBS () () () () () CR-UXRP7B-P () (GRN) () () () () () E3 BL FS FAN DRIVE FILTER HU OPTION E T0 3 () PK-B PAW-T0 3 T0 4POL 4 3 () PK-A PNK CZ-RTC R R VLT TA TA E. E. E3. E3. BL BL FS FS FD FD FI FI HU HU ON ON ON3 ON4 ON5 ON6 PAW-80MAHL t t t t TH TH TH4 TH5 TERMINAL TH Air intake temperature sensor TH Indoor coil thermistor E TH4 Indoor coil thermistor E3 TH5 Air outlet temperature sensor PT00* Supply air temperature sensor CZ-RTC Remote controller TR-6* Thermostat * Not included in PAW-80MAHL CZ-CAPBC* CR-SV80B CR-UXRP7B-P PAW-T0 Z / Z TR External signal control PCB RAP valve control PCB Main PCB External signal control PCB Auxiliary power relay Power transformer 4

25 Product description TERMINAL CONNECTOR 6P () CONNECTOR 6P () TERMINAL TERMINAL TERMINAL PE L N U U R R EX EX Z5 Z3 OP3 Z M. M. M.3 M.4 M.5 COM DI DI DI3 COM DO COM DO PNK CZ-RTC COM DO COM DO SV () CR-SV80B 3WAY () POWER () Z 8 3 SV () OP3 () Z 8 3 VLT TR R R MOV OUT () CR-MOVG-P MOV IN () TO () CZ-CAPBC CN CN 3 OC RC () () AC IN 3 () EXCT () WAY OP () () () PNL 3 T0 () () () TA E GRN PNK VLT VLT VLT FAN TRANS-P TRANS-S PMV HBS () () () () () CR-UXRP7B-P () (GRN) () () () () () E3 BL FS FAN DRIVE FILTER HU OPTION E T0 3 () PK-B PAW-T0 3 T0 4POL 4 3 () PK-A TR TA TA E. E. E3. E3. BL BL FS FS FD FD FI FI HU HU ON ON ON3 ON4 ON5 ON6 PT0 PT9 PT8 TERMINAL PAW-560MAH t t t t TH TH TH4 TH5 TERMINAL PT00 TERMINAL CONNECTOR 6P () CONNECTOR 6P () TERMINAL TERMINAL PE L N U U R R EX EX Z5 Z3 OP3 Z M. M. M.3 M.4 M SV () CR-SV80B 3WAY () POWER () Z 8 3 SV () OP3 () Z 8 3 TR MOV OUT () CR-MOVG-P MOV IN () TO () OC RC () () AC IN 3 () EXCT () WAY OP () () () PNL 3 T0 () () () TA E GRN PNK VLT VLT VLT FAN TRANS-P TRANS-S PMV HBS () () () () () CR-UXRP7B-P () (GRN) () () () () () E3 BL FS FAN DRIVE FILTER HU OPTION E T0 3 () PK-B PAW-T0 3 T0 4POL 4 3 () PK-A PNK CZ-RTC VLT R R TA TA E. E. E3. E3. BL BL FS FS FD FD FI FI HU HU ON ON ON3 ON4 ON5 ON6 PAW-560MAHL t t t t TH TH TH4 TH5 TERMINAL TH Air intake temperature sensor TH Indoor coil thermistor E TH4 Indoor coil thermistor E3 TH5 Air outlet temperature sensor PT00* Supply air temperature sensor CZ-RTC Remote controller TR-6* Thermostat * Not included in PAW-560MAHL CZ-CAPBC* CR-MOVG-P CR-SV80B CR-UXRP7B-P PAW-T0 Z / Z TR External signal control PCB Motorized valve PCB RAP valve control PCB Main PCB External signal control PCB Auxiliary power relay Power transformer 5

26 Product description Wiring layout PACi systems TERMINAL TERMINAL TERMINAL PE L N U U R R EX EX Z5 Z3 OP3 Z COM DI DI DI3 COM DO COM DO PNK CZ-RTC COM DO COM DO 7 5 Z Z 8 3 R R CZ-CAPBC CN VLT - + TR CN 3 OC RC () () AC IN 3 () EXCT () WAY OP () () () PNL 3 T0 () () () TA E FAN TRANS-P () () CR-UXRP7B-P () (GRN) () () E BL FS FAN DRIVE TRANS-S () () FILTER GRN PNK VLT VLT PMV HBS () () () () HU OPTION E T0 3 () PK-B PAW-T0 3 T0 4POL 4 3 () PK-A TR VLT TA TA E. E. E3. E3. FS FS FD FD FI FI HU HU ON ON ON3 ON4 ON5 ON6 PT0 PT9 PT8 TERMINAL PAW-80PAH t t t TH TH TH3 TERMINAL PT00 TERMINAL TERMINAL PE L N U U R R EX EX Z5 Z3 OP3 Z Z 7 5 Z TR 3 OC RC () () AC IN 3 () EXCT () WAY OP () () () PNL 3 T0 () () () TA E FAN TRANS-P () () CR-UXRP7B-P () (GRN) () () E BL FS FAN DRIVE TRANS-S () () FILTER GRN PNK VLT VLT PMV HBS () () () () HU OPTION E T0 3 () PK-B PAW-T0 3 T0 4POL 4 3 () PK-A VLT PNK CZ-RTC R R VLT TA TA E. E. E3. E3. FS FS FD FD FI FI HU HU ON ON ON3 ON4 ON5 ON6 PAW-80PAHL t t t TH TH TH3 TERMINAL TH Air intake temperature sensor TH Indoor coil thermistor E TH4 Indoor coil thermistor E3 PT00* Supply air temperature sensor CZ-RTC Remote controller TR-6* Thermostat * Not included in PAW-80PAHL CZ-CAPBC* CR-UXRP7B-P PAW-T0 Z / Z TR External signal control PCB Main PCB External signal control PCB Auxiliary power relay Power transformer 6

27 AL OUT ATU PV SV SET ºC ºC Product description 3.6 AHU Kit enclosure configuration AHU Kit enclosure configuration Note: AHU Kit shown with transparent front cover removed. Mounting boards Upper mounting board 3 Upper mounting board Remote controller (CZ-RTC) Thermostat (TR-6) 3 External signal control PCB (PAW-T0) 4 Terminal board with 6 connectors (labelled Section A to Section F) each with 0 contacts 4 For details see 5.4 Terminal block layout. 7

28 Product description Lower mounting board Lower mounting board 5 Auxiliary transformer 6 Transformer 7 Relay 8 Single motorized valve PCB 9 Relay 0 Single RAP valve control PCB Double RAP valve control PCB Depending on the model used, the single RAP valve control PCB (0) or double RAP valve control PCB () is mounted in this position. 3.7 System Overview System Overview ECOi systems Single-connection system A B C D E F G AHU Kit enclosure (complete) AHU system (field supplied) Remote controller (integrated in AHU Kit enclosure) Outdoor unit Liquid piping (field supplied) Gas piping (field supplied) Electronic expansion valve H I J K L M Thermistor for liquid pipe Thermistor for gas pipe Thermistor for suction air Thermistor for discharge air Inter-unit wiring Magnetic relay for operating the blower (field supplied) 8

29 Product description System example for ECOi single-connection system Air Handling Unit Kit PAW-80MAH I/D-O/D wiring Wiring for Thermostat & Solenoid Valve Piping ECOi or ECO G Air Handling Unit Multi-connection system Note: The following restrictions apply only if PAW-560MAH(L) is used alone or in combination with other AHU Kits. For all other AHU Kits and AHU Kit combinations without PAW-560MAH(L) no such restrictions apply. All AHU heat exchangers belonging to the same refrigerant circuit have to be installed in the same chassis equipped with one single fan motor. One AHU Kit and correspondingly one magnetic relay is required for each heat exchanger. All AHU Kits have to be wired to the fan motor. 3 All AHU Kits shall be connected and controlled by group control wiring of remote controller. 9

30 Product description System example for ECOi multi-connection system (40 kw capacity) Fan operation signal Gas temperature Liquid temperature 8 kw H/E PAW-80MAH 6 HP 6 HP 8 HP 56 kw H/E PAW-560MAH PAW-560MAH Inlet temperature Outlet temperature 56 kw H/E Fan motor control PCB Gas tube Liquid tube O_U / I_U communication System Overview ECO G systems Single-connection or multiple-connection systems A B C D E F G AHU Kit enclosure (complete) AHU system (field supplied) Remote controller (integrated in AHU Kit enclosure) Outdoor unit Liquid piping (field supplied) Gas piping (field supplied) Electronic expansion valve H I J K L M Thermistor for liquid pipe (E) Thermistor for gas pipe (E3) Thermistor for suction air (TA) Thermistor for discharge air (BL) Inter-unit wiring Magnetic relay for operating the blower (field supplied) Single-connection system shown here as an example. Multi-connection systems are only possible in combination with PAW-60MAH(L) or PAW-80MAH(L). However, with PAW-560MAH(L) only -to- installations are allowed. 30

31 Product description System Overview PACi systems Single-connection system only Strainer (liquid pipe & gas pipe) min. Ø 5.4 mm (field supplied) A B C D E F G AHU Kit enclosure (complete) AHU system (field supplied) Remote controller (integrated in AHU Kit enclosure) Outdoor unit Liquid piping (field supplied) Gas piping (field supplied) Thermistor for liquid pipe (E) H I J K Thermistor for heat exchanger pipe middle (E) Thermistor for suction air (TA) Inter-unit wiring Magnetic relay for operating the blower (field supplied) With all PACi outdoor units only -to- installations are allowed. System example for PACi single-connection system Air Handling Unit Kit PAW-80PAH I/D-O/D wiring Wiring for Thermostat & Solenoid Valve Piping PACi Air Handling Unit 3

32 Product description 3.8 Technical data and limitations i Important Apart from the technical data and limitations given in the following tables, the technical data and limitations of the relevant outdoor units, local wiring and piping design regulations and approved best practices need to be observed in installation procedures. Technical data and limitations ECOi and ECO G systems HP Model PAW-60MAH(L) PAW-80MAH(L) PAW-560MAH(L) Nominal cooling capacity kw Nominal heating capacity kw Air volume (Cooling) Min m³/h,40 3,500 7,000 Max m³/h,600 5,000 0,000 AHU DX coil heat exchanger Min dm volume Max dm Bypass factor 0.9 (recommended) 0.9 (recommended) 0.9 (recommended) Power source V / ph / Hz 30 / / / / / / 50 Dimensions (enclosure) H x W x D mm 78 x 78 x x 78 x x 78 x 80 Net weight Advanced / Light kg 4.5 / / / 3,98 Protection class IP65 IP65 IP65 Piping length Min / Max m 0 / 00 0 / 00 0 / 00 Max. branch pipe length m Max. branch pipe length difference after first branch m Elevation difference (in/out) Max m Piping connections Liquid pipe Inch (mm) 3/8 (9.5) 3/8 (9.5) 5/8 (5.88) Gas pipe Inch (mm) 5/8 (5.88) 7/8 (.) /8 (8.58) Intake temperature of AHU Kit Ambient temperature (outdoor unit) Cooling (Min / Max) C 8 / 3 C DB (3 / 3 C WB) 8 / 3 C DB (3 / 3 C WB) 8 / 3 C DB (3 / 3 C WB) Heating (Min / Max) C 6 / 30 C DB 6 / 30 C DB 6 / 30 C DB Cooling (Min / Max) C -0 / 43 C DB -0 / 43 C DB -0 / 43 C DB Heating (Min / Max) C -0 / 5 C WB -0 / 5 C WB -0 / 5 C WB HP 30¹ 40¹ 50¹ 60¹ Model PAW-80MAH(L) + PAW-560MAH(L) + PAW-560MAH(L) + PAW-560MAH(L) PAW-560MAH(L) PAW-560MAH(L) + PAW-80MAH(L) Nominal cooling capacity kw Nominal heating capacity kw Air volume (Cooling) Min m³/h 5,000 0,000 5,000 30,000 Max m³/h 0,500 4,000 7,500,000 PAW-560MAH(L) + PAW-560MAH(L) + PAW-560MAH(L) AHU DX coil heat exchanger Min dm volume Max dm Bypass factor 0.9 (recommended) 0.9 (recommended) 0.9 (recommended) 0.9 (recommended) Power source V / ph / Hz 30 / / / / / / / / 50 Dimensions (enclosure) H x W x D mm for dimensions of single enclosure: see upper table Net weight kg for net weight of single enclosure: see upper table Protection class IP65 IP65 IP65 IP65 Piping length Min / Max m 0 / 00 0 / 00 0 / 00 0 / 00 Max. branch pipe length m Maxi.branch pipe length difference after first branch m Elevation difference (in/out) Max m Piping connections Liquid pipe Inch (mm) 3/4 (9.05) 3/4 (9.05) 3/4 (9.05) 3/4 (9.05) Gas pipe Inch (mm) /4 (3.75) / (38.5) / (38.5) / (38.5) Intake temperature of AHU Kit Ambient temperature (outdoor unit) Not applicable for ECO G systems. Cooling (Min / Max) C 8 / 3 C DB (3 / 3 C WB) 8 / 3 C DB (3 / 3 C WB) 8 / 3 C DB (3 / 3 C WB) 8 / 3 C DB (3 / 3 C WB) Heating (Min / Max) C 6 / 30 C DB 6 / 30 C DB 6 / 30 C DB 6 / 30 C DB Cooling (Min / Max) C -0 / 43 C DB -0 / 43 C DB -0 / 43 C DB -0 / 43 C DB Heating (Min / Max) C -0 / 5 C WB -0 / 5 C WB -0 / 5 C WB -0 / 5 C WB 3

33 Product description Technical data and limitations PACi systems AHU Kit PAW-80PAH(L) Outdoor unit PACi Standard -phase U-60PEYE5 U-7PEYE5 U-00PEYE5 U-5PEYE5 Nominal cooling capacity kw Nominal heating capacity kw Air volume (Cooling) Min (factory) m³/h ,40 Max (factory) m³/h ,980,00 Air volume (Cooling), Max m³/h,450,600,400,500 subject to restrictions¹ AHU DX coil heat Min (factory) dm exchanger volume Max (factory) dm AHU DX coil heat Max dm exchanger volume, Additional ref. charge kg/dm subject to restrictions Max. additional kg refrigerant charge Max. pipe length m Max. ambient temp. C n/a n/a 35 5 for pump down Heat exchanger front Min m area Max m Power source V / ph / Hz 30 / / / / / / / / 50 Dimensions (enclosure) H x W x D mm 78 x 78 x x 78 x x 78 x x 78 x 80 Net weight Advanced / Light kg 4.5 / / / / 4.53 Protection class IP65 IP65 IP65 IP65 Piping length Min / Max m 3 / 40 3 / 35 5 / 30 5 / 30 Precharged length Max m Additional refrigerant charge g/m Piping connections Liquid pipe Inch (mm) 3/8 (9,5) 3/8 (9,5) 3/8 (9,5) 3/8 (9,5) Gas pipe Inch (mm) 5/8" (5,88) 5/8" (5,88) 5/8" (5,88) 5/8" (5,88) Intake temperature of Cooling (Min / Max) C 8 / 3 C DB 8 / 3 C DB 8 / 3 C DB 8 / 3 C DB AHU Kit (3 / 3 C WB) (3 / 3 C WB) (3 / 3 C WB) (3 / 3 C WB) Heating (Min / Max) C 6 / 30 C DB 6 / 30 C DB 6 / 30 C DB 6 / 30 C DB Ambient temperature Cooling (Min / Max) C -0 / 43 C DB -0 / 43 C DB -0 / 43 C DB -0 / 43 C DB (outdoor unit) Heating (Min / Max) C -0 / 5 C WB -0 / 5 C WB -0 / 5 C WB -0 / 5 C WB AHU Kit PAW-80PAH(L) Outdoor unit PACi Standard 3-phase U-00PEYE8 U-5PEYE8 U-40PEYE8 Nominal cooling capacity kw Nominal heating capacity kw Air volume (Cooling) Min (factory) m³/h 840,40,40 Max (factory) m³/h,980,00,60 Air volume (Cooling), Max m³/h,400,500,600 subject to restrictions¹ AHU DX coil heat Min (factory) dm exchanger volume Max (factory) dm AHU DX coil heat Max dm exchanger volume, Additional ref. charge kg/dm subject to restrictions Max. additional kg refrigerant charge Max. pipe length m Max. ambient temp. C 35 5 n/a for pump down Heat exchanger front Min m area Max m Power source V / ph / Hz 30 / / / / / / 50 Dimensions (enclosure) H x W x D mm 78 x 78 x x 78 x x 78 x 80 Net weight Advanced / Light kg 4.5 / / / 4.53 Protection class IP65 IP65 IP65 Piping length Min / Max m 5 / 30 5 / 30 5 / 30 Precharged length Max m Additional refrigerant charge g/m Piping connections Liquid pipe Inch (mm) 3/8 (9,5) 3/8 (9,5) 3/8 (9,5) Gas pipe Inch (mm) 5/8" (5,88) 5/8" (5,88) 5/8" (5,88) Intake temperature of Cooling (Min / Max) C 8 / 3 C DB 8 / 3 C DB 8 / 3 C DB AHU Kit (3 / 3 C WB) (3 / 3 C WB) (3 / 3 C WB) Heating (Min / Max) C 6 / 30 C DB 6 / 30 C DB 6 / 30 C DB Ambient temperature Cooling (Min / Max) C -0 / 43 C DB -0 / 43 C DB -0 / 43 C DB (outdoor unit) Heating (Min / Max) C -0 / 5 C WB -0 / 5 C WB -0 / 5 C WB To be continued on next page. 33

34 Product description Technical data and limitations PACi systems (cont.) AHU Kit PAW-80PAH(L) Outdoor unit PACi Elite -phase U-50PEE5 U-60PEE5A U-7PEE5A U-00PEE5A U-5PEE5A U-40PEE5A Nominal cooling capacity kw Nominal heating capacity kw Air volume (Cooling) Min (factory) m³/h ,40,40 Max (factory) m³/h ,500,980,00,60 Air volume (Cooling), Max m³/h,080,600,800,400,600,700 subject to restrictions¹ AHU DX coil heat Min (factory) dm exchanger volume Max (factory) dm AHU DX coil heat Max dm exchanger volume, Additional ref. charge kg/dm subject to restrictions Max. additional kg refrigerant charge Max. pipe length m Max. ambient temp. C n/a for pump down Heat exchanger front Min m area Max m Power source V / ph / Hz 30 / / / / / / / / / / / / 50 Dimensions (enclosure) H x W x D mm 78 x 78 x x 78 x x 78 x x 78 x x 78 x x 78 x 80 Net weight Advanced / Light kg 4.5 / / / / / / 4.53 Protection class IP65 IP65 IP65 IP65 IP65 IP65 Piping length Min / Max m 3 / 30 5 / 40 5 / 40 5 / 30 5 / 30 5 / 30 Precharged length Max m Additional refrigerant charge g/m Piping connections Liquid pipe Inch (mm) /4 (6,35) 3/8 (9,5) 3/8 (9,5) 3/8 (9,5) 3/8 (9,5) 3/8 (9,5) Gas pipe Inch (mm) / (,7) 5/8" (5,88) 5/8" (5,88) 5/8" (5,88) 5/8" (5,88) 5/8" (5,88) Intake temperature of Cooling (Min / Max) C 8 / 3 C DB 8 / 3 C DB 8 / 3 C DB 8 / 3 C DB 8 / 3 C DB 8 / 3 C DB AHU Kit (3 / 3 C WB) (3 / 3 C WB) (3 / 3 C WB) (3 / 3 C WB) (3 / 3 C WB) (3 / 3 C WB) Heating (Min / Max) C 6 / 30 C DB 6 / 30 C DB 6 / 30 C DB 6 / 30 C DB 6 / 30 C DB 6 / 30 C DB Ambient temperature Cooling (Min / Max) C -0 / 43 C DB -0 / 43 C DB -0 / 43 C DB -0 / 43 C DB -0 / 43 C DB -0 / 43 C DB (outdoor unit) Heating (Min / Max) C -0 / 5 C WB -0 / 5 C WB -0 / 5 C WB -0 / 5 C WB -0 / 5 C WB -0 / 5 C WB AHU Kit PAW-80PAH(L) Outdoor unit PACi Elite 3-phase U-7PEE8A U-00PEE8A U-5PEE8A U-40PEE8A Nominal cooling capacity kw Nominal heating capacity kw Air volume (Cooling) Min (factory) m³/h ,40,40 Max (factory) m³/h,500,980,00,60 Air volume (Cooling), Max m³/h,800,400,600,700 subject to restrictions¹ AHU DX coil heat Min (factory) dm exchanger volume Max (factory) dm AHU DX coil heat Max dm exchanger volume, Additional ref. charge kg/dm subject to restrictions Max. additional kg refrigerant charge Max. pipe length m Max. ambient temp. C for pump down Heat exchanger front Min m area Max m Power source V / ph / Hz 30 / / / / / / / / 50 Dimensions (enclosure) H x W x D mm 78 x 78 x x 78 x x 78 x x 78 x 80 Net weight Advanced / Light kg 4.5 / / / / 4.53 Protection class IP65 IP65 IP65 IP65 Piping length Min / Max m 5 / 40 5 / 30 5 / 30 5 / 30 Precharged length Max m Additional refrigerant charge g/m Piping connections Liquid pipe Inch (mm) 3/8 (9,5) 3/8 (9,5) 3/8 (9,5) 3/8 (9,5) Gas pipe Inch (mm) 5/8" (5,88) 5/8" (5,88) 5/8" (5,88) 5/8" (5,88) Intake temperature of Cooling (Min / Max) C 8 / 3 C DB 8 / 3 C DB 8 / 3 C DB 8 / 3 C DB AHU Kit (3 / 3 C WB) (3 / 3 C WB) (3 / 3 C WB) (3 / 3 C WB) Heating (Min / Max) C 6 / 30 C DB 6 / 30 C DB 6 / 30 C DB 6 / 30 C DB Ambient temperature Cooling (Min / Max) C -0 / 43 C DB -0 / 43 C DB -0 / 43 C DB -0 / 43 C DB (outdoor unit) Heating (Min / Max) C -0 / 5 C WB -0 / 5 C WB -0 / 5 C WB -0 / 5 C WB To be continued on next page. 34

35 Product description Technical data and limitations PACi systems (cont.) AHU Kit PAW-80PAH(L) Outdoor unit PACi Elite 3-phase U-00PEE8 U-50PEE8 Nominal cooling capacity kw Nominal heating capacity kw Air volume (Cooling) Min (factory) m³/h,680,80 Max (factory) m³/h 3,960 4,440 Air volume (Cooling), Max m³/h 4,300 5,400 subject to restrictions¹ AHU DX coil heat Min (factory) dm exchanger volume Max (factory) dm AHU DX coil heat Max dm exchanger volume, Additional ref. charge kg/dm subject to restrictions Max. additional kg.5.5 refrigerant charge Max. pipe length m n/a n/a Max. ambient temp. C n/a n/a for pump down Heat exchanger front Min m area Max m.0.0 Power source V / ph / Hz 30 / / / / 50 Dimensions (enclosure) H x W x D mm 78 x 78 x x 78 x 80 Net weight Advanced / Light kg 4.5 / / 4.53 Protection class IP65 IP65 Piping length Min / Max m 5 / 70 5 / 70 Precharged length Max m Additional refrigerant charge g/m Piping connections Liquid pipe Inch (mm) 3/8 (9,5) / (,7) Gas pipe Inch (mm) (5,4) (5,4) Intake temperature of Cooling (Min / Max) C 8 / 3 C DB 8 / 3 C DB AHU Kit (3 / 3 C WB) (3 / 3 C WB) Heating (Min / Max) C 6 / 30 C DB 6 / 30 C DB Ambient temperature Cooling (Min / Max) C -5 / 43 C DB -5 / 43 C DB (outdoor unit) Heating (Min / Max) C -0 / 5 C WB -0 / 5 C WB This (higher) maximum allowed air volume is subject to a restriction of the Intake temperature of AHU Kit to 30 C DB (instead of 3 C DB). Without this restriction, only the (lower) factory-set maximum air volume is allowed. This (higher) maximum AHU DX coil heat exchanger volume is subject to the following restrictions: an additional refrigerant charge on top of the additional refrigerant charge, which needed, when pipe length exceeds the maximum allowed with standard shipment charge (see calculation example below) AND a reduced maximum pipe length AND an ambient air temperature limit above which no pump down must be performed Calculation example for total additional refrigerant charge Unit: U-60PEE5 Pipe length: 40 meter AHU DX coil (supplied by AHU manufacturer):,7 dm 3 Refrigerant charge at shipment fitted for pipe length within 30 m Pipes additional refrigerant charge: 0,05 kg/m AHU DX coil additional refrigerant charge: 0,9 kg/dm 3 Refrigerant charge at shipment fitted for AHU DX coil volume within,4 dm 3 Total additional refrigerant charge calculation ((.7 dm 3.4 dm 3 ) x 0.9 kg/dm 3 ) + (0 m x 0.05 kg/m) = 0.7 kg kg = 0.77 kg Calculation example for number of passes in the heat exchanger The minimum number of passes in the AHU heat exchanger is restricted. The limit is calculated by the formula: Minimum number of passes = Number of steps Distance between tube sheets Number of rows The calculated value must then be rounded up to the next integer number. Example Number of steps: 35

36 Product description Distance between tube sheets:,000 mm Number of row: 3 Minimum number of passes = = 5.4 This value must be rounded up to 6. This means that the minimum number of passes is 6 passes.! NOTICE Nuisance tripping of high-pressure switch The outdoor unit is equipped with a high-pressure switch, which stops the operation of the airconditioning unit for protection when the set high-pressure limit is exceeded. Nuisance tripping of the high-pressure switch may occur in heating mode if the heat exchanger pipe thermistor (E) is not properly positioned or if the limit is not properly set. Position the heat exchanger pipe thermistor (E) correctly and set the limit properly in accordance with the instructions given in this document. 36

37 Installation 4 Installation 4. Installation of AHU Kit WARNING Electric shock from live power supply cords Electric shock may result from contact with live power supply cords. Wiring installation must only be performed by a qualified electrician. Before starting to work on any machines or devices, always switch off the power supply and lock it in switched-off position.! NOTICE Damage to the AHU Kit enclosure and to the thermistor and/or expansion valve wires Exposing the AHU Kit enclosure to direct sunlight can cause overheating and material damage and should therefore be avoided. Exposing the wires of thermistors or, in case of the ECOi and ECO G systems, of the expansion valve to the outside and/or to direct sunlight might damage the wires and should therefore be avoided. Attach the AHU Kit either directly to the Air Handling Unit or to a wall nearby and make sure that it is not exposed to direct sunlight. Use protecting wire ducts to avoid exposing the wires of thermistors and the electronic expansion valve to the outside. Mount the AHU Kit according to the following instructions. Please note that screws and other fixing materials, which may be required, are not included in the kit.. Prepare the 4 holes in the wall or on the surface, where you want to mount the enclosure, using the dimensions shown below (distance between centre points of the holes: 54 mm)

38 Installation. Loosen the 4 screws in the corners of the enclosure and remove the cover from the enclosure. 3. Mount the backside of the enclosure to the wall or surface using field-supplied fixing screws inserted through the previously prepared holes at each corner. 38

39 Installation! NOTICE Signal errors through noise from live power supply cords Power supply cords can generate noise, which may cause signal errors, if they are run in close vicinity to any low-voltage control wiring. Keep 30 V AC power supply wiring apart from the low-voltage control wiring for sensors etc. Route 30 V AC power supply wiring through different cable glands than the low-voltage control wiring. 4. Insert the wiring preferably from below the enclosure through the screwed cable glands and connect the wires to each of the 6 connectors as required. After having finished wiring and applying power to the AHU Kit, auto-addressing can be performed and the parameters of the thermostat (advanced version only) can be set. i Important Please note that the connectors can be plugged out for easy installation. As connectors A and D are intended for connecting the 30 V AC power supply wiring, they have special blind ports, which prevent them from being plugged back into the low-voltage connectors B, C, E or F. 5. Place the cover back on the enclosure and fix it with the 4 screws at the corners. 39

40 Installation 4. Installation of refrigerant piping When installing the refrigerant piping, the following limitations and restrictions need to be observed: Maximum actual and equivalent piping length Maximum branch pipe length to AHU Kit Maximum branch pipe length difference (between longest and shortest piping from the first branch) Dimensions of connecting pipes to heat exchanger of AHU system Precharged pipe length of outdoor unit Additional refrigerant charging amount for longer pipe runs Other technical data and limitations of the relevant outdoor units Local piping design regulations Best practices for piping design i Important For technical data, limitations and restrictions not mentioned in this document, refer to the technical documentation for the relevant ECOi, ECO G and PACi outdoor units. 40

41 Installation 4.3 Installation of expansion valve Installation of expansion valve ECOi and ECO G systems! NOTICE Damage to the expansion valve wires Exposing the wires of the expansion valve to the outside and/or to direct sunlight might damage the wires and should therefore be avoided. Attach the AHU Kit either directly to the Air Handling Unit or to a wall nearby and make sure that it is not exposed to direct sunlight. Use protecting wire ducts to avoid exposing the wires of thermistors and the electronic expansion valve to the outside. When installing the expansion valve, the following limitations and restrictions need to be observed: Wires must not be put out of equipments. Wires must not be cut and connector of wires must not be detached. The distance from AHU heat exchanger must not exceed 6 m. Pipe reducers must be installed in the field where applicable. For example, for 0HP ECOi systems, piping size to outdoor unit is Ø 9.5 mm (instead of Ø 5.88 mm*). AHU heat exchanger Pipe to the outdoor unit Expansion valve (accessory) Max. length: 6 m Flare connection: Ø 5.88 mm * Pipe to the outdoor unit Pipe to the AHU heat exchanger Vertical inclination of expansion valve must be less than ±5. Expansion valve (MOV) Pipe to the outdoor unit Pipe to the AHU heat exchanger 4

42 Installation The coil wire must be inserted drooped in the AHU body with the drooping wire being close to the AHU Kit. Inside of AHU AHU Kit Drooping wire i Important If there are multiple heat exchangers in one ECOi system, an individual expansion valve must be installed for each heat exchanger. 4.4 Installation of thermistors! NOTICE Damage to the thermistor wires Exposing the wires of thermistors to the outside and/or to direct sunlight might damage the wires and should therefore be avoided. Attach the AHU Kit either directly to the Air Handling Unit or to a wall nearby and make sure that it is not exposed to direct sunlight. Use protecting wire ducts to avoid exposing the wires of thermistors and the electronic expansion valve to the outside. When installing the thermistors, the following limitations and restrictions need to be observed: Wires must not be put out of equipments. Wires must not be cut and connector of wires must not be detached. Thermistors must be Identified by the tag which is wound to each thermistor. The head of the thermistor must be attached exactly onto the pipe, because the head is the most sensitive point of the thermistor. Maximum contact Most sensitive point of the thermistor 4

43 Installation The thermistor wire must point downwards from the thermistor to avoid water reaching the thermistor. The thermistor wire must be inserted drooped in the AHU body with the drooping wire being close to the AHU Kit. Inside of AHU AHU Kit Drooping wire i Important If there are multiple heat exchangers in one ECOi system, an individual thermistor must be installed for each heat exchanger Installation of thermistor on gas pipe Installation of thermistor on gas pipe ECOi and ECO G systems Mount E3 thermistor to gas pipe of AHU heat exchanger according to the following instructions. For PAW-60MAH(L). Attach the gas pipe thermistor onto the collecting gas pipe in the heat exchanger. 43

44 Installation. Cover the thermistor and pipe with aluminum tape. 3. Cover the aluminum tape with thermal insulation. 4. Fix thermal insulation and wiring with two bands. Then, run the wire downwards in a loop, to avoid putting tension to it. For PAW-80MAH(L) and PAW-560MAH(L). Upon delivery, for PAW-80MAH(L) and PAW-560MAH(L) there is a sensor sleeve soldered to the gas pipe after the expansion valve: Insert the sensor together with some heat sink paste into the sensor sleeve.. Fasten the sensor in an appropriate way (e. g. with a little clip) to prevent it from falling out of the sleeve. 44

45 Installation 4.4. Installation of thermistor on liquid pipe Mount E thermistor to liquid pipe of AHU heat exchanger according to the following instructions.. Attach the liquid pipe thermistor to the liquid pipe located in the lowest position after the distributor in the heat exchanger.. Cover the thermistor and pipe with aluminum tape. 3. Cover the aluminum tape with thermal insulation. 4. Fix thermal insulation and wiring with two bands. Then, run the wire downwards in a loop, to avoid putting tension to it. 45

46 Installation Installation of thermistor on heat exchanger pipe middle Installation of thermistor on heat exchanger pipe middle PACi systems Mount E thermistor to heat exchanger pipe middle according to the following instructions.. Attach the heat exchanger pipe middle thermistor in the middle of each pass-line (pipe) in the heat exchanger.. Cover the thermistor and pipe with aluminum tape (field-supplied). 3. Fix thermistor with two bands. Then, run the wire downwards in a loop, to avoid putting tension to it 4. Cover the aluminum tape with thermal insulation. And also cover the sensor (copper portion) with thermal insulation completely. 46

47 Installation Installation of thermistor for suction and discharge air stream Mount the suction and discharge air thermistors according to the following instructions.. For ECOi, ECO G and PACi systems, attach the suction air thermistor (TA) to the position where air suction temperature can be measured.. In addition to this, for ECOi and ECO G systems attach also the discharge thermistor (BL) to the position where air discharge temperature can be measured. 3. In case of using the additional thermostat (advanced version only) for: a. target temperature setting based on ambient temperature, install the 3-wired temperature sensor in a protected location for detecting the proper ambient temperature (avoid direct sunlight and moisture); b. demand control based on room supply air temperature install the 3-wired temperature sensor in the blow-out duct of the AHU where the proper air temperature can be measured. 4.5 Disconnection of jumper on outdoor unit PCB Disconnection of jumper on outdoor unit PCB PACi systems In order to avoid the controller displaying the error message L0 or L3, jumper JP00 on the PACi outdoor unit PCB must be cut.. Cut wire of jumper JP00 at two positions. Jumper JP00 to be cut at two points Detail view PACi outdoor unit PCB. Take cut jumper leads off. 47

48 Installation 3. Place a NOTE label, which indicates that the jumper wire has been cut, in the following designated areas on the outdoor unit. NOTES* NOTES* * Position of designated area for NOTES label depends on model type. 48

49 Electrical Wiring 5 Electrical Wiring 5. General precautions on wiring WARNING Electric shock from live power supply cords Electric shock may result from contact with live power supply cords. Wiring installation must only be performed by a qualified electrician. Before starting to work on any machines or devices, always switch off the power supply and lock it in switched-off position. CAUTION The following precautions need to be followed strictly in the context of working on any electrical wiring, in order to avoid hazardous situations, which could result in minor or moderate injury. Before wiring, confirm the rated voltage of the unit as shown on its nameplate, then carry out the wiring closely following the wiring diagram. This equipment is not provided with a power supply cord. Circuit breaker must be incorporated in the fixed wiring in accordance with national wiring regulations. The circuit breaker must be approved, suitable for the voltage and current ratings of equipment and have a contact separation in all poles. To prevent possible hazards from insulation failure, the unit must be grounded. Each wiring connection must be done in accordance with the wiring system diagram. Wrong wiring may cause the unit to misoperate or become damaged. Do not allow wiring to touch the refrigerant tubing, compressor, or any moving parts of the fan. Unauthorized changes in the internal wiring can be very dangerous. The manufacturer will accept no responsibility for any damage or misoperation that occurs as a result of such unauthorized changes. Regulations on wire diameters differ from locality to locality. For field wiring rules, please refer to the relevant local electrical codes before beginning. You must ensure that installation complies with all relevant rules and regulations. To prevent malfunction of the air conditioner caused by electrical noise, care must be taken when wiring as follows: The remote control wiring and the inter-unit control wiring should be wired apart from the inter-unit power wiring. Use shielded wires for inter-unit control wiring (between units) and ground the shield on both sides. If the power supply cord of this appliance is damaged, it must be replaced by a repair shop designated by the manufacturer, because special-purpose tools are required. 49

50 Electrical Wiring 5. Recommended wire lengths and diameters i Important The letter coding (A to F) used in the following tables refers to the wiring system diagrams in the next section. For information on (A) Power supply of outdoor unit refer to the Installation Instructions for the relevant outdoor unit. Indoor unit Type (B) Power supply Time delay fuse or circuit breaker AHU Kit.5 mm (AWG#3) 0 6 A Max. 50 m Control wiring (C) Inter-unit control wiring (between outdoor and indoor units (D) Remote control wiring (E) Control wiring for group control (F) Inter-outdoorunit control wiring 0.75 mm (AWG# 8) Use shielded wiring* or.0 mm (AWG# 4) Use shielded wiring* 0.75 mm (AWG# 8) Use shielded wiring* 0.75 mm (AWG# 8) Use shielded wiring* 0.75 mm (AWG# 8) Use shielded wiring* Max.,000 m Max.,000 m Max. 500 m Max. 00 m (total) Max. 300 m E and F are relevant for ECOi multi connection systems only. 50

51 Electrical Wiring 5.3 Wiring system diagrams Wiring system diagram ECOi systems Power supply 0 40V ~50/60Hz Remote controller Power supply 0 40V ~50/60Hz Remote controller Group control: Power supply 0 40V ~50/60Hz L N Ground L N Ground L N Ground D D AHU Kit (No. ) B E B B L N U U R R AHU Kit (No. ) L N U U R R AHU Kit (No. 3) L N U U C C C Ground Ground Ground F Ground Ground Ground Ground Outdoor unit INV unit L L L3 N L L L3 N A Inter-outdoor-unit control wiring Outdoor unit INV unit A L L L3 N L L L3 N Ground Ground Power supply V, 3 N~, 50Hz Power supply V, 3 N~, 50Hz R R C Ground Power supply 0 40V ~50/60Hz Remote controller L N Ground D AHU control kit (No. n) B L N U U R R Ground Wiring system diagram ECO G systems Power supply 0 40V ~50/60Hz Remote controller Ground AHU Kit Ground Outdoor unit Power supply 0 40V ~50/60Hz Ground 5

52 Electrical Wiring Wiring system diagram PACi systems For single-phase outdoor units Power supply 0 40V ~50/60Hz Remote controller Ground Ground Ground AHU Kit Ground Outdoor unit INV unit Ground Power supply 0 40V ~50/60Hz For three-phase outdoor units Power supply 0 40V ~50/60Hz Remote controller Ground Ground Ground AHU Kit Ground Outdoor unit INV unit Ground Power supply V 3N ~50/60Hz Notes on wiring system diagrams All systems. Refer to the previous section (Recommended wire lengths and diameters) for the explanation of A, B, C, D, E and F in the above diagrams.. The connection diagram below shows the power supply connector (Section D) of the AHU Kit s terminal board (actual appearance may differ slightly). 0P Connector / Section D L Power supply N Neutral conductor 3 PE Protective earthing 4 IZ-5 Blower out 5 IZ-3 Blower out 6 OP3 Blower protection 7 Z-7 Blower protection 8 HU Humidifier 9 HU Humidifier 0 Blind 3. Refrigerant Circuit (R.C.) address should be set on the outdoor unit before turning the power on. 4. Regarding R.C. address setting, refer to the installation instructions supplied with the remote controller unit. Auto address setting can be executed by remote controller automatically. Refer to the installation instructions supplied with the remote controller unit. 5. Use shielded wires for inter-unit control wiring (C) with shielded woven mesh grounded on both sides, otherwise misoperation from noise may occur. Shielded wire Ground Ground Connect wiring as shown in the section Wiring System Diagram. 5

53 Electrical Wiring 6. Use the standard power supply cables for Europe (such as H05RN-F or H07RN-F which conform to CENELEC(HAR) rating specifications) or use the cables based on IEC standard (45 IEC57, 45 IEC66). 7. When linking the outdoor units in a network, disconnect the terminal extended from the short plug from all but one of the outdoor units. (When shipping: in shorted condition.) For a system without link (no wiring connection between outdoor units), do not remove the short plug. 8. Do not install the inter-unit control wiring in a way that forms a loop. Outdoor unit Outdoor unit Outdoor unit Prohibited Prohibited Indoor unit Indoor unit Indoor unit Indoor unit Indoor unit 9. Do not install inter-unit control wiring such as star branch wiring. Star branch wiring causes faulty address setting. Prohibited Outdoor unit Indoor unit Indoor unit Indoor unit Indoor unit Branch point 0. If branching the inter-unit control wiring, the number of branch points should be 6 or fewer. (Branches that are less than m are not included in the total branch number.) Outdoor unit Outdoor unit Outdoor unit Indoor unit Indoor unit Indoor unit Indoor unit more than m Branch point 6 or fewer Indoor unit more than m Indoor unit Indoor unit Indoor unit Indoor unit more than m Indoor unit 53

54 Electrical Wiring! NOTICE Overheating of terminals with resulting unit malfunction or even fire due to loose wiring Loose wiring may cause the terminal to overheat resulting in unit malfunction or a fire hazard. When connecting each power wire to the terminal, follow the instructions on how to connect wiring to the terminal (see next section) and fasten the wire securely with the terminal screw. Check and ensure that all wiring is tightly connected. 5.4 Terminal block layout Section A Section B Section C No. Name Description Note No. Name Description Note No. Name Description Note FD External fan drive V DC BL Discharge temperature FD External fan drive V DC BL Discharge temperature 5 V DC DI Digital Input max. 4 V DC / 5 ma 5 V DC DI Digital Input max. 4 V DC / 5 ma 3 PT8 External temp. sensor 4 PT9 External temp. sensor 0 V DC 3 TA Suction temperature 5 V DC 3 DI3 Digital Input 3 max. 4 V DC / 5 ma 0 V DC 4 TA Suction temperature 5 V DC 4 COM Digital Inputs COM max. 4 V DC / 5 ma 5 PT0 External temp. sensor 0 V DC 5 EX EXCT contact 5 V DC 5 ON Option connector COM 6 Blind 6 EX EXCT contact 5 V DC 6 ON Defrost V DC 7 D0 Operation signal max 30 V AC / 3 A 7 FI Filter contact 5 V DC 7 ON3 Th ON V DC 8 COM COM operation signal V DC max 30 V AC / 3 A 8 FI Filter contact 5 V DC 8 ON4 Cool V DC 9 D0 Alarm signal max 30 V AC / 3 A 9 FS Float switch 5 V DC 9 ON5 Heat V DC 0 COM COM alarm signal max 30 V AC / 3 A 0 FS Float switch 5 V DC 0 ON6 Fan mode V DC 54

55 Electrical Wiring Section D Section E Section F No. Name Description Note No. Name Description Note No. Name Description Note L Power supply 30 V AC / max. A N Neutral conductor 30 V AC / max. A U (OC) IU/OU communication U (OC) IU/OU communication 3 PE Protective earthing 3 R Needed for group 6 V DC 3 E- / wiring E3-4 Z-5 Relay Z, Pin 5, Blower out 5 Z-3 Relay Z, Pin 3, Blower out 6 OP3 CR8-SV80B, OP3, Pin, Blower protection 7 Z-7 Relay Z, Pin 7, Blower protection max. 30 V AC / 5 A max. 30 V AC / 5 A 8 HU Humidifier max. 30 V AC / 3 A 9 HU Humidifier max. 30 V AC / 3 A 4 R Needed for group 6 V DC 4 E- / wiring E3-5 V AC E- E sensor 5 V DC 5 V AC E- E sensor 5 V DC E sensor (PACi) / E3 sensor 3 E sensor (PACi) / E3 sensor 3 5 M- For expansion valve V DC 5 M- Spare, not used 30 V AC 6 M- For expansion valve V DC 6 M- 30 V AC 7 M-3 For expansion valve V DC 7 M-3 8 M-4 For expansion valve V DC 8 M-4 9 M-5 For expansion valve V DC 9 M-5 0 Blind 0 M-6 V DC 0 Blind For ECOi and ECO G systems only. For PAW-60MAH(L) and 80MAH(L) only. In this case, there are 6 instead of 5 pins. 3 E sensor in case of PACi, E3 sensor in case of ECOi and ECO G. 5 V DC 5 V DC 5.5 Connection of wiring to terminals Connect wiring to the terminals according to the following instructions. Stranded wire. Cut the wire end with cutting pliers, then strip the insulation to expose the stranded wiring about 0 mm and tightly twist the wire ends. Strip 0 mm Wire-end sleeve. Using a flat-blade screwdriver, loosen the terminal screw(s) on the terminal plate. 3. Attach a wire-end sleeve to each stripped wire end using a crimping tool. 55

56 Electrical Wiring 4. Place the wire-end sleeve into the socket on the connector and replace and tighten the removed terminal screw using a flat-blade screwdriver. Special washer Screw Terminal plate Screw and special washer Wire-end sleeve Wire Wire Wire-end sleeve Shielded wire. Remove cable sheath not to scratch braided shield.. Unbraid the braided shield carefully and twist the unbraided shield wires tightly together. Insulate the shield wires by covering them with an insulation tube or wrapping insulation tape around wire. Insulation tape Shield mesh 3. Remove insulation of signal wire. 8 mm Insulation tape Shield mesh 4. Attach wire-end sleeves to the signal wires and the shield wires insulated in step using a crimping tool. Wire-end sleeve 5. Connect the shield for the inter-unit control wiring to ground. 56

57 Electrical Wiring 5.6 Connection of external signal lines When installing the external signal lines (blower signal output and blower protection input), the following installation requirements need to be observed: Blower signal and blower protection lines must be routed through left wiring port below the terminal board. Detail view 0P Connector / Section D Blower signal output 6 7 Blower protection The external signal lines must be inserted drooped in the AHU body and protected by a clamp with the drooping wire being close to the AHU Kit to avoid water reaching the AHU Kit. Inside of AHU AHU Kit Blower signal and blower protection lines Clamp Drooping wire 57

58 Electrical Wiring Blower signal output This fan control is usually at ON position at the time of operating, but becomes OFF in defrosting. 0P Connector / Section D X Minimum applicable load: Maximum applicable load: X: Relay (field supplied) 5 V DC, ma 30 V AC, A If uninterrupted fan operation is needed and cold draft air is avoided for example by some internal bypass etc., the defrost signal (contacts C5, C6 = ON, ON) can be used with an additional field supplied relay. Blower protection input If a switch opens, an alarm P0 appears on a remote controller display, and operation stops. 0P Connector / Section D SW 4 3 SW: operation command (field supplied) 0 ~ 40 V AC, 0. A 58

59 Electrical Wiring 5.7 Electric circuit examples Electric circuit example ECOi systems Multi-connection systems with 3 AHU Kits AHU Kit 0P Connector Field-supplied 7 6 Blower signal output 5 4 X X X X3 AHU Kit 0P Connector Blower signal output X AHU Kit 0P Connector Blower signal Blower signal output X3 Electric circuit example PACi systems Single-connection system AHU Kit 0P Connector Field-supplied Blower signal output X X X Blower signal i Important For details about the connection and functions of the PAW-T0 PCB, please refer to the separate installation instructions for PAW-T0. 59

60 Test Run 6 Test Run After installation and before operation of the system, perform a test run according to the Test Run section in the Installation Instructions of the relevant outdoor unit. If alarm messages are indicated on the outdoor unit PCB (by blinking LEDs) or on the wired remote controller, refer to the Alarm Messages section in the Installation Instructions for the relevant outdoor unit. 60

61 Control 7 Control 7. Remote controller The standard Panasonic wired remote controller CZ-RTC is an integral part of the AHU Kit. All control and setting operations for the ECOi, ECO G or PACi system can be performed on this remote controller. i Important The relevant control operations are described in the Operating Instructions manual for the CZ-RTC remote controller. It is supplied with the AHU Kit or can be downloaded from the Service section at 7. Thermostat The advanced version of the AHU Kit features a thermostat (temperature controller), which can optionally be set and parametrized separately if using the controller is required. i Important The thermostat is not included in the light version of the AHU Kit. 7.. Control and display elements Display PV : Process value Display SV : Set value 3 Button Down 4 Button Up 5 Button Set 6 Button Left 7 LED Alarm (ON when Auto-Tuning is active) 8 LED Out (ON when Process Value is lower than Set Value) 6

62 Control 7.. Operation Status messages After the thermostat has been switched on, the PV and SV displays jointly show a set sequence of three status messages before they change to the normal view where the current process value is shown on the PV display and the currently set temperature value is shown on the SV display. Control voltage switched on. Software version view (factory setting). Input specification view (factory setting) 3. Measuring range (factory setting) PV = lower limit SV = upper limit Normal view 4. The two displays finally change to normal view: PV = currently measured temperature (process value) SV = currently set temperature value Changing the set temperature value To change the set temperature value, perform the following steps:. During operation, press the button. x briefly The SV display is blinking.. Change the set value as required, using the, and buttons. The SV display shows the desired temperature value. 3. Confirm the setting by pressing the button. x briefly The SV display permanently shows the new set value. 6

63 Control i Important The set temperature value, which is adjustable by the above procedure, can be used in different ways and with different functions depending on how the thermostat is used in the individual application. For further information see 7..3 Initial Settings. Changing values in the Parameter menu To change the values of control parameters, perform the following steps:. Press and hold the button for approximately 3 seconds to enter the Parameter menu. x for 3 sec. The PV display shows ALI, while the current setting in the SV display is blinking. Note: After 30 seconds of idleness, the display automatically returns from parametrization view to normal view.. Press the button repeatedly to select the parameter to be changed. repeatedly The sequence of parameters and their range of valid values are shown in the table below. 3. Once the PV display shows the parameter to be changed and the blinking SV display shows the currently set parameter value, use the, and buttons to set a new parameter value 4. Confirm the new setting by pressing the button. x briefly 5. If more than one parameter needs to be changed, repeat steps through 4 for each required parameter. 6. Once all parameters are set as required, confirm the complete parametrization by pressing and holding the button for approximatedly 3 seconds. x for 3 sec. Parametrization is now complete. The PV and SV displays have returned to showing the current temperature and the set temperature values respectively. 63

64 Control Parameter menu No. Parameter code Parameter name ALI Inactive Setting range Description HY Hysteresis Switching difference relative to the set value, unilateral (i. e. the value is added either below ( heating mode ) or above ( cooling mode ) the set value) 3 P Proportional band (P) Proportional action for the PID-controlled system 4 i Integral time (I) s Integral action for the PID-controlled system 5 d Derivative time (D) s Derivative action for the PID-controlled system 6 T Output switching time (T) T represents a time value equivalent to the minimum period of time during which the output maintains in switched status (only active in PID mode). 7 SC Setpoint calibration (SC) C Sensor calibration (subtracts/adds the set temperature value from/to the actual value) 8 AT Auto-Tuning 0 / 0 = OFF / = ON 9 LOC Password protection for access to menu (LOC) LOC = 0, changes to menu A and Auto-Tuning allowed 3 LOC =, no changes on parametrization level allowed; changes to set values possible 3 LOC =, no changes to any parameters allowed 3 With a higher value, the controller will try to maintain the temperature using a lower cycle frequency with a longer cycle time. In principle, cycle times for mechanical relay outputs should be chosen to be as long as possible, to avoid early wear and tear by high cycle frequencies. However, when using Solid State Relay outputs (SSR) short cycle times may result in a temperature curve with enhanced linearity, while the cycle frequency has no relevance for the wear-free electronic SSR outputs. AutoTuning must be performed during normal operation with the load applied. However, during Auto-Tuning mode the system may heat up to temperatures significantly exceeding the set temperature value. Therefore, for sensitive applications the set value should be reduced before the start of the Auto-Tuning mode. Auto-Tuning is terminated automatically (after max. 9 hours) or aborted prematurely if the following conditions occur: Set temperature value is changed Actual temperature takes on an abnormal value (out of limits) Controller is switched off or power supply is interrupted for at least 0 ms Maximum Auto-Tuning duration of 9 hours is exceeded. 3 Blocked parameters can be changed, but changed values cannot be confirmed. Switching from PID mode to ON/OFF mode. To switch from PID mode to ON/OFF mode, the P, I and D parameters (menu items 3 through 5) must be set to the value 0 (zero). For detailed steps see section Changing values in the Parameter menu above.. During ON/OFF mode, if the PID parameter values (menu items 3 through 5) are changed manually or if Auto-Tuning (menu item 8) is activated, PID mode is automatically re-activated. Auto-Tuning in PID mode The Auto-Tuning function of the thermostat can automatically determine optimum PID settings for certain load conditions. To use Auto-Tuning, the following requirements must be met: Controller is switched on. Load is applied. Set temperature value is set to a value which is a. as close to the real set temperature as possible b. low enough to avoid damage to the system caused by too high temperatures. LOC parameter (menu item 9) is set to 0 (zero). 64

65 Control! NOTICE System heat-up to temperatures significantly exceeding the set temperature value During Auto-Tuning mode the system may heat up to temperatures significantly exceeding the set temperature value and may cause damage to sensitive applications. Before starting the Auto-Tuning mode, the set temperature value should be reduced to an uncritical value. Switching from heating mode to cooling mode The thermostat is factory-set to the so called heating mode : When the actual temperature value (shown on the PV display) is below the set temperature value (shown on the SV display), the controller is trying to reach the set value by activating a heating system which is connected to the control relay output on terminals 6 7. This control method is called normally open (NO) control output. If a SSR output is used instead of a mechanical relay output, an equivalent voltage is activated at the ouput. When the actual temperature value is above the set temperature value, the output is inactive. To use the controller in so called cooling mode, the output must be negated. This control method is called normally closed (NC) ouput : When the actual temperature value is above the set temperature value, the output is activated. When the actual temperature value is below the set temperature value, the output is inactive. To switch from heating mode to cooling mode, perform the following steps:. Press and hold the and buttons jointly for approximately 5 seconds. x buttons for 5 sec. The PV display shows PAS, while the current setting ( 0 ) in the SV display is blinking. Note: After 30 seconds of idleness, the display automatically returns from parametrization view to normal view.. Use the, and buttons to change the value to 7 (minus 7). 3. Confirm the new setting by pressing the button. x briefly The PV display now shows nun, while the SV display now shows 3. 65

66 Control 4. Press the button repeatedly to select the entry PSL. repeatedly 5. Use the and buttons to change the value to either 0 (= factory setting) for heating mode or for cooling mode. 6. Confirm the complete parametrization by pressing and holding the button for approximatedly 3 seconds. x for 3 sec. Parametrization is now complete. The PV and SV displays have returned to showing the current temperature and the set temperature values respectively. Switching from 0 0 V to 0 V output signals The voltage range for the output signals on terminals 6 7 is factory-set to 0 0 V. Switching the voltage range from 0 0 V to 0 V is possible. However, Panasonic recommends to keep the factory setting. To switch from 0 0 V to 0 V output signals, perform the following steps:. Press and hold the and buttons jointly for approximately 5 seconds. x buttons for 5 sec. The PV display shows PAS, while the current setting ( 0 ) in the SV display is blinking. Note: After 30 seconds of idleness, the display automatically returns from parametrization view to normal view.. Use the, and buttons to change the value to 7 (minus 7). 3. Confirm the new setting by pressing the button. x briefly The PV display now shows nun, while the SV display now shows Press the button repeatedly to select the entry AO. repeatedly 66

67 Control 5. Use the and buttons to change the value to either for output... 0V or (= factory setting) for output V. 6. Confirm the complete parametrization by pressing and holding the button for approximatedly 3 seconds. x for 3 sec. Parametrization is now complete. The PV and SV displays have returned to showing the current temperature and the set temperature values respectively Initial Settings Depending on how the thermostat is used in each individual application, its settings must be adjusted for the relevant case. Case : Controlling the room supply air temperature To set the thermostat for controlling the room supply air temperature, perform the following steps:. On the thermostat, switch to PID mode by entering the Parameter menu and setting parameters P, I and D to the values given below (see 7.. Operation Changing values in the Parameter menu ). AHU situation P I D Capacity high in respect to lower air volume flow Capacity low in respect to higher air volume flow In case the temperature is not stable during operation, these values may be adjusted manually at a later stage.. On the thermostat, switch to cooling or heating mode, depending on the AHU requirements (see 7.. Operation Switching from heating mode to cooling mode ). 3. On the thermostat, change the set temperature value (T set ) as required (see 7.. Operation Changing the set temperature value ). In this case, the set temperature value represents the desired room supply air temperature. 4. Open the AHU Kit enclosure (see 4. Installation of AHU Kit step ), and remove the upper mounting board. 5. On the CR-CAPBC PCB, located on the lower mounting board inside the AHU Kit enclosure, cut jumper JP, in order to activate the 0 0 V control mode for the thermostat. Make sure that all other jumpers remain intact. 67

68 Control 6. Restore and fasten the upper mounting board in its original position, and close the AHU Kit enclosure again (see 4. Installation of AHU Kit step 5). Case : Adjusting the temperature setpoint based on ambient air temperature To set the thermostat for adjusting the temperature setpoint based on ambient air temperature (T out ), perform the following steps:. On the thermostat, switch to PID mode by entering the Parameter menu and setting parameters P, I and D to the values given below (see 7.. Operation Changing values in the Parameter menu ): P 0 (not zero) I = 0 (zero) D = 0 (zero) The value of parameter P represents the required gradient for the cooling or heating curve in modulating temperature control (see diagrams below) and must not be equal to zero.. On the thermostat, switch to cooling or heating mode, depending on the AHU requirements (see 7.. Operation Switching the controller from heating mode to cooling mode ). 3. On the thermostat, change the set temperature value as required (see 7.. Operation Changing the set temperature value ). In this case, the set temperature value represents the adjusted temperature setpoint based on ambient air temperature (T set TR-6 ), beyond which any cooling or heating operation is stopped (heating or cooling limit temperature). 4. On the remote controller (CZ-RTC), set the upper and lower limits for the adjusted temperature setpoint in cooling or heating mode. Inbetween the upper and lower limit the setpoint will be adjusted in a linear way (see diagrams below). Mode Parameter name For upper limit For lower limit Cooling Parameter F Parameter 0 Heating Parameter Parameter This setting together with the value of parameter P defines the cooling or heating ramp curve as shown in the following diagrams. Cooling mode Heating mode F 0 T out T out = T set TR-6 + P T out T set TR-6 T out T out = T set TR-6 P T out T set TR-6 5. Open the AHU Kit enclosure (see 4. Installation of AHU Kit step ), and remove the upper mounting board. 68

69 Control 6. On the CZ-CAPBC PCB, located on the lower mounting board inside the AHU Kit enclosure, make sure that switches S to S4 are set as follows: a. S: Set to OFF-ON-OFF-ON (factory default on AHU Kit) b. S: All jumpers are intact, i e. no jumper has been cut. c. S3: Set to VOLTAGE or NO VOLTAGE, depending on the local digital input (DI) configuration. Control via dry contacts (factory default) = NO VOLTAGE Control via 4 V DC signals = VOLTAGE 4 V DC GND d. S4: Set to 0 0 V. 69

70 Control 7. Restore and fasten the upper mounting board in its original position, and close the AHU Kit enclosure again (see 4. Installation of AHU Kit step 5). Case 3: 0 0 V demand control by an external BMS To set the thermostat for 0 0 V demand control by an external building management system (BMS), perfom the following steps:. Open the AHU Kit enclosure (see 4. Installation of AHU Kit step ), and remove the upper mounting board.. On the CZ-CAPBC PCB, located on the lower mounting board inside the AHU Kit enclosure, remove the existing wiring from the thermostat TR-6 at the analogue input (AI) contacts No. 3 and 4, and replace it with the 0 0 V signal wiring from the external BMS (see diagram below). Make sure that correct polarity is observed: terminal 3 = negative ( ), terminal 4 = positive (+). TERMINAL COM DI DI DI3 COM DO COM DO COM DO COM DO CZ-CAPBC CN CN T0 () + E PK-B PAW-T0 T0 4POL () PK-A Connect 0 0 V signal wiring from BMS here (observing correct polarity!) TR Disconnect the wiring of the PT0 PT9 PT8 TERMINAL TR-6 controller PT00 70

71 Control 3. On the CZ-CAPBC PCB, cut jumper JP, in order to activate the 0 0 V demand control mode for the external BMS. Make sure that all other jumpers remain intact. 4. On the CZ-CAPBC PCB, set switch S3 to VOLTAGE or NO VOLTAGE, depending on the BMS digital input (DI) configuration. Control via dry contacts (factory default) = NO VOLTAGE Control via 4 V DC signals = VOLTAGE 4 V DC GND 5. Restore and fasten the upper mounting board in its original position. 6. On the terminal connector of Section C, located on the upper mounting board inside the AHU Kit enclosure (see diagram below), connect the digital inputs (DI) as follows: Heating start to COM and DI Cooling start to COM and DI Fan mode (free cooling) start to COM and DI3 All DI contacts open = Stop 7