SERVICE MANUAL. Liebert HPM Digital kw Indoor Room Cooling Units with Modulating Capacity A/W/F/D/H Versions

Transcription

1 Precision Cooling for Business-Critical Continuity Liebert HPM Digital - kw Indoor Room Cooling Units with Modulating Capacity A/W/F/D/H Versions SERVICE MANUAL Cod. Rev

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3 Caution We recommend that: the manual is retained for the entire service life of the machine; the user reads the manually carefully before carrying out any operations on the machine; the control is used exclusively for the purpose for which it is intended; incorrect use of the control shall release the manufacturer from any liability. his manual has been prepared to enable the end-user to carry out only the operations that can be made with the panels closed. Any operations that require the opening of doors or equipment panels must be carried out only by qualified personnel. Each machine is equipped with an Electric Insulating device which allows the operator to work in conditions of safety. Switch off the machine with this electric insulating device before any maintenance operation to eliminate risks remaining (electric shocks, burns, automatic restarting, moving parts and remote control). For UNDER units installed on raised floor: switch off the machine before removal of the floor panels within a distance of 80 mm from the machine, to avoid risks of contact with rotating devices (fans) moving and with hot heating elements. he panel key supplied with the unit must be kept by the person responsible for maintenance. For identification of the unit (model and serial no.) in case of the necessity for assistance or spare parts, locate the identification label on the outside of the unit. Attention: data relevant to the supplied unit are indicated on the inboard label (see below empty fax-simile). Data in the manual are referred to standard conditions and can be modified without any advance notice Compressor Full Load Ampere [A] Compressor Locked Rotor Ampere [A] Compressor quantity 4 Evaporator fan Full Load Ampere [A] Evaporator fan Locked Rotor Ampere [A] Evaporator fan quantity Condenser fan Full Load Ampere [A] 8 Condenser fan Locked Rotor Ampere [A] 9 Condenser fan quantity 0 Electrical heating Ampere Electrical heating steps Humidifier Ampere Steam production capacity 4 Max. unit AC Ampere Max. unit DC Ampere Rated peak withstand current Rated short-time current 8 Refrigerant type 9 High pressure switch Stop 0 High pressure switch Restart Low pressure switch Stop Low pressure switch Restart Min. room operation temperature 4 Max. room operation temperature Min. room operation humidity Max. room operation humidity Max. refrigeration circuit pressure Liebert HPM - Digital

4 Digit Nomenclature (D unit) he unit is fully defined by seventeen digits Digit Family D Digital Digit and Size: Cooling Capacity kw (approx.) Nominal Cooling Capacity D U A Digit 4 Air distribution U Downflow O Upflow D Displacement Digit Version A Air Cooled W Water Cooled F Freecooling D Dualfluid Air Cooled H Dualfluid Water Cooled Digit - Fan 0 Standard fan EC fan Digit - Main Power Supply V/ Ph/0 Hz Digit 8 - Electric heating 0 None Electric heating Digit 9 - Humidification 0 None V Electrode humidifier Digit 0 -Microprocessor Control ICOM & Inner Display with emperature Control ICOM & Inner Display with emperature and Humidity Control A ICOM & Coldfire Display Small with emperature Control B ICOM & Coldfire Display Small with emperature and Humidity Control C ICOM & Coldfire Display Large with emperature Control D ICOM & Coldfire Display Large with emperature and Humidity Control Digit -Reheating System 0 None G Hot gas coil W Hot water coil Digit -Air Filter Efficiency 0 G4 F G4; with Clogged Filter Pressure Switch F; with Clogged Filter Pressure Switch Digit -Refrigerant 0 R40C (EEV valve -with suction accumulator) R40C (V valve) R40C (EEV valve) Digit 4 -Paint CHARCOAL GREY Colour BLACK Emerson 0 Colour Digit -On board B, for Remote Air Condenser 0 No B B A single circuit condenser Digit -Packing P PLP and Pallet C Cardboard and Wooden Crate S Seaworthy Digit -Special Requirements 0 Standard Emerson Network Power Special Emerson Network Power Liebert HPM - Digital

5 Index - Preliminary operations Inspection Handling Operating limits Noise level limits Positioning Installation Base module Refrigeration connections Refrigeration pipeline connections (A and D) Vacuum creation and refrigerant charge Refrigeration circuits Water connections General warnings Water connections Chilled water connections (D and H only) - (Fig. e) Coooling water connections (W, F and H only) Adding ethylene glycol Electrical connections Electrical connections Fan connections Protection degree IPx check Protective features of EC fan (optional) Start-up First start-up (or after long standstill) Starting and stopping Automatic restart Checking the refrigeration piping pressure drops Operation Calibrations & Regulation (at start-up) Setting the thermostatic expansion valve Adjustment of the hot gas injection valve as antifreeze mode and partial control of the capacity (F, D, H) Chilled water valve (F, D and H only) Water leakage sensor (Liquistat) Environment protection Maintenance / Spare Parts Safety instructions Spare parts Maintenance schedule Refrigeration circuit Dismantling the unit Regulation (EC) no. 84/00 (F-gas) Enclosures HUMIDAIR humidifier A - echnical data tables B - Installation drawings C - Refrigerant and hydraulic connections D - Refrigeration circuits E - Hot water circuit F - Liebert HPM - Digital

6 - Preliminary operations. - Inspection On receiving the equipment immediately check its condition; report any damage to the transport company at once.. - Handling Always keep the unit vertically upright and do not leave it out in the open. ransport the unit using a fork lift truck with front- shoulders at least. m high, to avoid upsetting danger. Fig. a - Unit handling Relative position room unit vs. remote condenser From unit to condenser max distance From unit to condenser max geodetic height () () Requirements up to 0 m equivalent length from 0 m to - m from 0 to 0 m equivalent length from 0 m to -8 m Pipe diameter see ab. c see ab. c Oil traps on vertical line of gas refrigerant every m, max every m, max Extra oil charge see ab. see ab. Variex installation suggested on second circuit std on digital circuit mandatory on second circuit Condenser design oversized +% Hot gas reheat allowed NO allowed Additional non return valve on delivery line, at m from compressor not necessary mandatory For W, F and H units Water or mixture temperature to condenser, lower limit (other information par..4) min. C. - Operating limits he units are designed to operate within working ranges (see ab. a). hese limits are referred to new machines or to those that have been correctly installed and serviced. he warranty clauses are no longer valid for any possible damage or malfunction that may occur during or due to operation outside the application values. ab. a - Operating limits For all units Room air conditions Hot water circuit Storage conditions Power supply tolerances from: to: inlet water temperature water pressure 8 C, 4% R.H. 0 C, 4% R.H. (*) C, % R.H max. 8 C max. 8. bar from: - 0 C to: 0 C (*) For condensing temperature under 4 C For A and D units Outdoor temperature: lower limit V 0% Hz Exceeding of winter lower limits will temporarily cause a compressor stop. down to -0 C VARIE required below - C Consult HPAC echnical Sales Support 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. For F, D and H units Chilled water circuit inlet water temperature min. C water pressure max. bar Max. differential pressures on the modulating valve ( or ways) - 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) DxF/D/H D0xF/D/H DxF/D/H DxF/D/H D4xF/D/H DxF/D/H D4xF/D/H D0xF/D/H () Positive difference in height: condenser above conditioner () Negative difference in height: condenser below conditioner Other information in para Noise level limits he sound pressure level in free field at. m height and m in front of the air conditioner, with compressor and fan in operations, is less than 0 dba for all models. Liebert HPM - Digital

7 he units are available in the three configurations shown below. U / UNDER Downflow O / OVER Upflow with front air return D / DISPLACEMEN Frontal air discharge at floor level - Positioning - Installation See overall dimensions and service area drawings in Enclosures C. Note for ducted Over conditioner and with electrical heaters in the case of plenum or duct not supplied by us. o avoid overheating of insulation material of a plenum or a duct, in the case of a ventilation fault, before the safety thermostat intervention, it is mandatory to locate the insulation material at a distance higher than 0 cm from the top of the of the air conditioner. AENION: he conditioner must never be installed out of doors. See drawings in Enclosures C.. - Base module If there is no raised floor below the unit it must be placed on a base module to allow access to the external connections. he conditioner is connected to the base module by 4 screws. Liebert HPM - Digital

8 4 - Refrigeration connections Fig. b - Recommended pipe layout 4. - Refrigeration pipeline connections (A and D) he air condensing units are delivered helium-pressurized at bar. he discharge operation of the room unit pressurized with helium (at bar) and the de-welding of the bottoms from the connections must be carried out as last operations, immediately followed by the connection and emptying of the whole system General layout (ab. b) ) In soft or hard copper. he diameter required is stated in ab. c. If the installer intends to use pipes of a larger diameter (e.g. for long winding runs) then consult HPAC echnical Sales Support. Use as short refrigeration pipelines as possible to minimize the total charge of refrigerant and the pressure drops. For long runs (over 0 equivalent m) contact HPAC echnical Sales Support. Lay the horizontal gas pipes with % downward gradient towards the refrigerant flow. 4 ) Reduce the number of bends, which must be of large radius, to a minimum. ) Insulate the piping as specified in ab. b. If the pipes are put next to electrical cables it is advised to insulate them to avoid damage to cable insulation. 4) here must be a minimum separation of 0 mm between the gas and liquid pipelines. If this is not possible insulate both lines. ) Support both horizontal and vertical pipes with vibration-damping clamps (which include rubber gaskets). Place these every. - m. ab. b - Condenser positioning INSULAION CONDENSER POSIION gas liq. CONDENSER ABOVE CONDIIONER CONDENSER AND CONDIIONER A SAME LEVEL CONDENSER BELOW CONDIIONER (not recommended) 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 gas liquid room unit (see **) room unit LAYOU gas liquid (see **) m (see *) liquid (*) Oil traps every m of vertical piping (**) see Chap., ab. a. Liebert HPM - Digital

9 4.. - Pipe diameter he diameters of the connecting pipes between the conditioner and the condensing unit listed in ab. c must be respected, otherwise the guarantee becomes invalid. ab. c - Pipe diameters (room unit - remote condenser) SANDARD PIPE DIAMEERS (Valid for equivalent lengths up to 0 m) copper tube MOD. external diametre x thickness [mm] R40C Gas Liquid D 4 4 D D0 8 D 8 D 8 D4 D 8 D4 8 D0 8 D 8 When the pipes are more than 0 m long, contact echnical Support Department Installing pipelines HE FOLLOWING OPERAIONS MUS BE CARRIED OU BY AN EPERIENCED REFRIGERAION ECHNICIAN. he discharge operation of the room unit pressurized with helium (at bar) and the de-welding of the bottoms from the connections must be carried out as last operations, immediately followed by the connection and emptying of the whole system. ) Lay the piping, taking note of the following: Welding: All joints must be braze-welded. Avoid butt welds by using sleeves or enlarging one of the pipes using a pipe opener. Use silver-based solders and the correct apparatus. Guarantee a correct weld as a refrigerant leak, or a faulty weld which leads to a leak later on, can seriously damage the air conditioner. Always use large-radius curves (bending radius at least equal to pipe diameter). Bend the pipes as follows: soft copper: by hand or bending device. hard copper: use preformed curves. Do not overheat the pipes when welding so as to minimize oxidation. ) Connect the pipes to the condenser: Condensers with butt-welded pipe connections: cut the pipe, enlarge it and weld it to the pipeline. Condensers with threaded tap connections: flange the pipes and connect. RESPEC HE DIRECION OF REFRIGERAN FLOW (SEE LABELS ON REFRIGERAN CONNECIONS). ) Wash out the pipelines as follows: a) Plug up the free ends of the pipes. b) Connect a helium or nitrogen cylinder, fitted with a reducer (max. pressure 0 bar), to the ¼ SAE Schrader valve of the condenser. c) Pressurize the pipes with helium or nitrogen. d) Unplug the pipes instantaneously. e) Repeat a) - d) several times. HIS OPERAION IS ESPECIALLY IMPORAN WHEN HARD COPPER PIPING IS USED. 4) Open all the room unit shut-off valve. ) Discharge the room unit pressurized with helium (at bar) opening the charge valves so that all the branches of the circuit are discharged (e.g. on the receiver, on the low pressure side and on the compressor delivery). ) De-weld the bottoms from the connections of the room unit. ) Fix (weld) the pipes to the connections on the air conditioner. 8) Connect the refrigerant safety valve to the outdoor with a copper pipe. ab. d - Weight of refrigerant contained in piping during operation EERNAL PIPE DIAMEER (mm) gas (*) liquid (+), at different condensing temperatures R40C (kg/m).0 C 4.0 C.0 C 0 x x x x x x x (*) Due to the small weight influence (at. bar - discharge temp. C), only 0.0 kg/l for R40C is considered. (+) Liquid pressure and density varies according to condensing temperature (see refrigerant tables). Liebert HPM - Digital 4

10 ab. e - Equivalent lengths (m) of: curves, shut-off and non-return valves Nominal diameter (mm) Vacuum creation and refrigerant charge Check the refrigerant type to be used on the data plate of the air conditioner and on the refrigerating compressor. Fig. c - Pump and refrigerant charging cylinder connection for vacuum creation and refrigerant charge (*) 4 R.L. a ) Connect a proper, high efficiency vacuum pump (0) suitable for polyester oils to the couplings: - Compressor intake and delivery using, if available, the three-way Rotalock cocks, coupling /4 SAE (make sure that all three ways are open), otherwise the Schrader valves welded on the pipings. - hree-way Rotalock cock, coupling /4 SAE of the liquid receiver () (make sure that all three ways are open). - Schrader coupling () fit on the compressor or fan space, if the reheating coil option is available. ) Provide for a connection with refrigerant cylinder before making vacuum. 4) Make the system vacuum up to 0. absolute mbar and after hours check if. absolute mbar have not been exceeded. his condition warrants a humidity lower than 0 ppm inside the system. If the complete vacuum is not possible, this means that there are some leaks (to be removed according to the instructions in below). NEVER USE HE COMPRESSOR O CREAE A VACUUM (HIS INVALIDAES IS GUARANEE). ) Break the vacuum as follows: a) Close the cock (0a) for the vacuum pump (0). b) Open the cock of the refrigerant cylinder (a) until the system reaches a pressure value of about bar. he refrigerant must be introduced and charged by taking only liquid fluid from the cylinder. 0 (*) only with reheating coil (optional) R40C precharge (A and D) 0a 0b ) Open all cocks of the system including those used for pressurizing (ambient unit and condensing unit). By this operation all the components of the refrigerating circuit must be subject to vacuum. c) At this point both the vacuum pump and the refrigerant cylinder can be disconnected as follows: c) close the cylinder cock (a) c) close the way /4 SAE of the Rotalock cocks and of the connected Schrader valves. ) Inspect all connections/joints using a leak detector. If a leak is found, empty the pipes and the condenser, seal the leak and repeat the instructions in ) - ). ) Now the machine is ready for completing the charge and the start-up. 8) Charge the refrigerant (ONLY LIQUID) by means of the charge valve placed at the evaporator inlet Refrigerant charge (A and D) ) Start the unit as described in para... ) Manually start the compressor (ensure the unit is not in the dehumidification phase). ) Guarantee a constant condensation temperature (preferably 4-4 C); if necessary, partially obstruct the Liebert HPM - Digital

11 condenser coil surface or limit its ventilating power to obtain these conditions. 4) Charge the unit until the working conditions of the entire refrigeration circuit have become normal. ) Using a manometer, check that the evaporating temperature is above 0 C. ) Verify that the superheat is -8 K (to do this refer to para. 9.) Refrigeration circuits See drawings in Enclosure E. Place the tubing on supporting saddles (). Insulate both tubes using Armaflex insulation (). Place shut-off ball valves () at the conditioner inlet and outlet to allow easy maintenance. It is useful to install a thermometer (4) and a manometer () at the conditioner inlet and outlet. Install a water drain tap () at the lowest point in the circuit. Fill the circuit with water/glycol (see Fig. e). Fig. e - Chilled water circuit - Water connections 4 Air conditioner. - General warnings ENSURE HA HE UBING DOES NO OBSRUC HE AIR FLOW(Under only). IF HE UBING IS O RUN OUDOORS, ADD EHYLENE GLYCOL O HE CIRCUI AS DESCRIBED IN PARA Water connections - Condensate drain (Fig. d): Use galvanized steel, PVC or flexible polythene tubing. Allow a % gradient towards the drain. here must be a drain trap () placed at least cm below the drain tray (). he drain trap must be placed under the unit, in the false floor. Fill the drain trap with water (). Fig. d - Condensate drain BRACKE to be connected by user min. 0 cm min. 0 cm - Humidifier (optional): See Enclosure A. - Hot water (optional): Use copper or steel (Mannesmann) tubing. Insulate both tubes using Armaflex insulation.. - Chilled water connections (D and H only) - (Fig. e) Use copper or steel (Mannesmann) tubing..4 - Coooling water connections (W, F and H only) he unit must receive cooling water as follows: a) from an external cooling water source, in open circuit (para..4. and Figures in Enclosures). b) using a Dry cooler, in closed circuit (para..4.). Connect the piping as shown in Enclosures D. It is advisable to use hoses to be connected, with -piece joints, to the condenser water inlet and outlet couplings. IMPORAN: fit a standard strainer on the inlet water piping. Place shut-off ball valves at the conditioner inlet and outlet to allow easy maintenance. It is advisable to install a water drain system at the lowest point in the circuit. Fully drain the piping before connecting it to the air conditioner Notes for open circuit applications Use the unit with mains or well water. DO NO USE WAER FROM AN EVAPORAIVE COOLING OWER UNLESS HE FILLING WAER HARDNESS IS CONROLLED. he water pressure must be - 0 bar (if this is not so, contact the echnical Support Department). he required water flow at different temperatures is given in our catalogues or on request. If necessary (very low water temperature) insulate both pipes using Armaflex insulation Notes for closed circuit applications he installation in Fig. f is indicative only; for individual installations follow the project diagram. Install a pump system calculated on the basis of the flow and total head of the system (see project data), and controlled by the compressor running (see label on the unit). Liebert HPM - Digital

12 Insulate both pipes using Armaflex insulation. VERY IMPORAN: Add water and ethylene glycol to the circuit, when the ambient temperature is below zero (referring also to para..). Do not exceed the nominal operating pressure of the circuit components. Bleed air out of the circuit.. - Adding ethylene glycol ab. f - Ethylene glycol to be added to water freezing temperature ( C) NOES: o avoid stratification run the circulation pump for at least 0 min. after adding any glycol. After adding water to the water circuit, disconnect the unit from the sanitary water piping system; in this way the water mixed with glycol won't return into the same piping system. After any topping-up of water check the glycol concentration and add any glycol if necessary. he hydraulic features of the system vary by adding glycol. herefore check the head and the flow rate of the pump to be used. ethylene glycol to add to water (% in weight of total mixture) N.B. Values are for Shell antifreeze 40. For different brands check manufacturer's data. Fig. f - Advised Dry cooler Installation filling HC S disconnect after charge water Stand-by pump (optional) Stand-by pump pressure-operated by-pass APPLIANCE shut-off valve pump non-return valve manometer S HC thermostat } (*) Variex (opt.) safety valve expansion tank air separator charge group (filter, reducer, non-return valve) filling meter drain (at lowest point) See hydraulic drawings in the Enclosures D. Liebert HPM - Digital

13 - Electrical connections. - Electrical connections ) Before proceeding with the electrical connections, ensure that: all electrical components are undamaged; all terminal screws are tight; the supply voltage and frequency are as indicated on the unit. ) Power supply cable connections: Connect the cable to the Line inlet terminal board. Use the cable size defined according to the flow, the supply voltage and the installation type. Protect the supply using a back-up fuse. Do not fit the supply cable in the raceways inside the machine electric board. Use multipolar cables with sheath (CEI0-) only. ) Wiring connections (Fig. g): Connections for remote on-off and hot water consent must be done by the installer. According with compressor running, two terminals for the opening of a water solenoid valve are available, by installer (W/H units). he General Alarm terminals allow remote alarm signalling. 4) In case of short circuit, check the sticking of the involved switch and possibly replace it. See electrical data in Enclosures B: echnical data tables. Fig. g - Electrical connections AUILIARY ERMINAL BO (Cooling + Electr. heating + Humidification) compressor compressors remote on-off (CLOSE = ON) clogged filter (CF) (CLOSE = OK) water leakage (LWD) GENERAL ALRM (400, 40 NC = alarm or unit off) WARNING (00, 0 NC = warning or unit off) only on units with EC fan smokestat firestat (AAP) optional (CLOSE = ON) operating fan (CLOSE = ON) operating compressor (CLOSE = ON) user alarm (CLOSE = OK) freecooling relay enabling, F/D/H only (CLOSE = ON) chilled water thermostat enabling, D version only (CLOSE = compressor ON) water solenoid valve enabling (by installer) before compressor intervention, W/H unit - 4 Vac - A max water solenoid valve enabling (by installer) before compressor intervention, W/H unit - 4 Vac - A max (NC) 40 (C) 40 (NO) (NC) 40 (C) 40 (NO) 00 (NC) 0 (C) 0 (NC) Fan connections he fan is electrically feeded by or autotransformers that are connected in order to obtain the nominal air flow and the External Static Pressure (ESP: 0 Pa for Under and 0 Pa for Over). o change the factory connection proceed as follow: - identify the unit's aeraulic graph in the Product Documentation; - choose the curve's point where both the air flow and the static pressure are the most suitable for the installation; - check the factory fan blocks connection and correct it, if necessary (see electrical diagram); - choose the new output fan connections and connect the wires to the relevant blocks.. - Protection degree IPx check After whole of the connections and installation works, comprising ceiling elements (plenum, ducting) and floor elements (base frame), check and verify the protection degree IPx (protection against finger access, std. IEC 04-) at the boundary of the air conditioner..4 - Protective features of EC fan (optional) he EC fan has been provided with the following protective features: Over temperature of electronics Over temperature of motor Locked rotor protection Short circuit at the motor output Liebert HPM - Digital 8

14 With any of these failures, the motor stops (electronically no potential separation), the status relay is released. NO automatic restart. o reset the alarm, power supply has to be switched off for min. 0s once motor is at standstill. Mains under-voltage detection: if mains voltage falls below ph/90vac (typical value) for s minimum, motor will be swithed off (only by electronics, no potential separation), status relay is released. If mains voltage returns to correct values, the motor will restart automatically. Phase failure recognition: if one phase failes for s minimum, motor will be switched off (only by electronics, no potential separation), status relay is released. If all phases return to correct values, the motor will restart automatically within 0-40s. he power supply for an external speed setting potentiometer is short-circuit protected. Motor is overload-protected via motor current limitation. Warning! Leakage current of the motor is ma roughly. - Start-up. - First start-up (or after long standstill) O PREVEN COMPRESSOR DAMAGE HE CRANKCASE(S) MUS BE PREHEAED FOR A LEAS 4 HOURS BEFORE CONDIIONER SAR- UP (FAILURE O DO SO INVALIDAES HE GUARANEE). Start the air conditioner as follows: ) Open all valves in the refrigeration circuit according to the instruction label attached to the valve. ) W, F and H only: Open all valves in the water circuit according to the instruction label attached to the valve. ) Ensure that the refrigerant charge is correct (see Chap. 4). 4) Using a leak detector, verify that there are no refrigerant leaks. If there are any, then repair the leak and recharge as described in Chap. 4. ) At least 4 hours before start-up, close QS and QF8 on the electrical panel. In the icom control system factory setting the stand alone mode is standard. he stand alone mode gives the possibility of turning on the unit simply rotating the main switch on the electric panel. he yellow LED on the icom case will light after turning on the unit, because of the presence of electric power. If the LED does not light up: check the electric panel power supply; check the protection devices (e.g.: thermal switches); check the fuses. ) Verify the operation of the crankcase heater. ) Check that there are no water leakages. 8) D and H only: Bleed all air out of the chilled water circuit using the bleed valve on the chilled water coil. 9) If an external condenser or Dry cooler is installed, start it by supplying power to it. 0) Close all Bs on the electrical panel. ) Check the supply voltage on all phases. ) Check the supply voltage on all phases for the external condenser or Dry cooler, if fitted. ) ENSURE HA HE COMPRESSOR HAS BEEN PREHEAED FOR A LEAS 4 HOURS BEFORE SARING HE UNI. 4) Start the unit by pressing ON OFF (see Fig. h). ) Check the electrical absorption of all components (see Chap. ). ) Check the electrical absorption of the external condenser/dry cooler, if fitted. ) IMPORAN - If the compressor makes a loud and unusual noise I IS NECESSARY O INVER the electrical connections of the phases supplying the corresponding scroll compressor, which accepts only one direction of rotation. 8) Ensure that the fans rotate in the correct direction (see arrow on fan). CAUION: risk of contact with rotating devices. 9) Ensure that all control system settings are correct and that there are no alarms (see Control manual). 0) W, F and H only: Verify the water flow. ) W, F and H only: For closed circuit units ensure that the water pump starts when the compressor starts. ) Verify the Fresh Air Intake operation (if fitted). ) Once the system is operating under load, check the various components, as follows: Verify that the fans are operating properly. Ensure that the temperature and relative humidity are being controlled, and that the humidifier (optional) and heating steps (optional) operate when required. Ensure that the compressor operates when required. D and H only: Ensure that chilled water valve operates when required. Ensure that the fan operation controller on the external condenser/dry cooler (if fitted) is calibrated correctly, and that it controls the fan operation.. - Starting and stopping ALWAYS ENSURE HA EACH CRANKCASE HAS BEEN PREHEAED. FOR BRIEF SOPPAGES KEEP HE SUPPLY O HE CRANKCASE HEAER. urn on the unit operating on the ON/OFF switch placed on the left case of the unit (Fig. h). If the ON/OFF remote device is not installed, the green LED on the icom case will light up together with the LED placed below the ON/OFF switch. he fan starts immediately (the fan always works when the unit is ON); after minutes the regulation is activated, so the cooling (compressor), heating (electric heaters), humidifying and dehumidifying devices can start. Adjust the set-point as indicated in Control manual. Stop the unit putting the ON/OFF switch in OFF.. - Automatic restart If desired, the unit will automatically restart on the return of power after a supply interruption (see Control manual). If the power interruption is expected to be of several hours, to avoid an automatic cold restart of the compressor stop the unit before the black-out and, on the return of power, allow the compressor to preheat before restarting the unit. Fig. h - On-Off switch 9 Liebert HPM - Digital

15 .4 - Checking the refrigeration piping pressure drops Liebert HPM is equipped with connections to check the refrigeration piping pressure drops: room unit condenser room unit o carry out this operation it is necessary to use calibrated manometers and connect them as follows: M, connected to the compressor delivery valve; M, connected to theschrader valve () of Fig. i. When the compressoris ruuning, check M and M. N.B.: Repeat this test, inverting the manometers : tocalculate the correct p consider the average value of the two readings. Refrigeration pipeline Pressure drops ( p bar), at 4 C At the same geodetic level: p (bar) = M-M When condenser is above the room unit: p (bar) = M-M+geodetic difference (m x,:0,) When condenser is below the room unit: p (bar) = M-M-geodetic difference (m x,:0,) Fig. i - Refrigerant line components to the electric expansion valve within a distance of 80 mm from the machine, to avoid risks of contact with rotating devices (fans) moving and with hot heating elements. (see Fig. j). he control system compares the relayed information to the set point and proportional band values programmed into its memory: it then commands the air conditioner to treat the air as follows (see also Control manual): COOLING Direct expansion mode (D) he compressor is started and the cold refrigerant flows through the evaporator, thus cooling the air passing over it. For compressor operation see Control manual. HEAING his can take one of three forms: - electrical heating (optional): the heating elements heat the air passing over them. here are heating steps. - hot water heating (optional): if hot water is available, this flows through the hot water coil, thus heating the air passing over it. he hot water flow is controlled by an on-off (-way) valve. - hot gas reheat (optional used during dehumidification): the hot refrigerant which exits the compressor flows through the hot gas coil, thus heating the air passing over it. 4 Liquid receiver valve Filter dryer inlet Schrader valve Filter dryer 4 Sight glass Solenoid valve 8 - Operation connection on the Liquid Receiver DEHUMIDIFICAION - optional D mode One of the compressors starts and either the air flow or the evaporator surface is reduced (depending on the model), thereby causing dehumidification (refer also to Control manual). In freecooling mode: see Control manual. N.B.: If, during dehumidification, the ambient temperature drops below a specified level, dehumidification will be stopped if necessary (see LOW LIMI intervention in Control manual). HUMIDIFICAION - optional he humidifier creates steam, which is distributed into the air stream via the steam distribution pipe (see also Enclosure A). N.B.: Manual control can be performed using the control system (see Control manual). Fig. j - Floor panels removal on a safety way Unit operation is completely automatic. he below sequence explains how the unit operates : he air, sucked in by the fan(s), enters the unit. he air is immediately filtered. he EMPERAURE sensor or HUMIEMP (temperature + rel. humidity) sensor (check type installed), verifies the state of the inlet air, and relays this information to the control system. Filtered new air is injected into the air stream via the Fresh Air Intake (optional). he treated air passes through the fans, which operate continuously, and is then dispersed out of the unit. Under unit only: the air passes from the underfloor void into the room via air distribution outlets. For UNDER units installed on raised floor: switch off the machine before removal of the floor panels 80 mm Liebert HPM - Digital 0

16 9 - Calibrations & Regulation (at start-up) he air conditioner has already been factory-tested and calibrated, but it is very important to check, at start-up, the superheating of thermostatic valve (all versions) and the by-pass hot gas valve (F/D/H). See ab. and ab. (Enclosed B) that show all valves. he air conditioner has already been factory. For calibrations of instruments installed on the external condensers/dry coolers refer to the relevant manual. For control system calibrations refer to Control manual (to prevent erratic operations do not use temperature and rel. humidity set points/proportional bands which differ excessively from the Standard Settings) Setting the thermostatic expansion valve HIS OPERAION MUS BE PERFORMED BY AN EPERIENCED REFRIGERAION ECHNICIAN. he valve has been factory preset and, if necessary, should be reset as follows: ) IMPORAN: Ensure that the instructions in Chap. 4 have been carried out. ) Allow the compressor to operate for mins. ) Measure the superheat as follows: a) Place a contact thermometer on the tube exiting the evaporator; b) Connect a manometer (by a tube of max. 0 cm) to the compressor suction valve. c) he overheating is the difference between the refrigerant saturation temperature corresponding to the pressure read on the manometer and the real temperature read on the thermometer. 4) he superheat must be - K; if not, set the expansion valve as follows: a) Remove the protective cover; b) urn the adjustment screw by /4 turn only; c) Wait 0 minutes. d) Measure the superheat and repeat the operation if necessary. N.B.: If the superheat is too low (compressor cool to the touch) the screw must be turned in a clockwise direction. If the superheat is too high (compressor hot to the touch) the screw must be turned in a counterclockwise direction Adjustment of the hot gas injection valve as antifreeze mode and partial control of the capacity (F, D, H) HIS OPERAION MUS BE CARRIED OU BY AN EPER REFRIGERAION ECHNICIAN Features his valve is installed int some special versions (see relevant refrigeration circuits). It enables a partial control of the evaporating pressure, so as to avoid evaporation temperatures lower than zero degrees centigrade and thus any ice formation (chilled water side), even with low temperatures of the return air. It injects hot gas exiting the compressor before the evaporator through the gas-liquid mixer, so as to keep the pressure higher than the set value. See the refrigeraton diagram Adjustment he min. evaporating pressure is kept by calibrating the valve as follows. Drastically reduce the conditioner air delivery. Check by a precise pressure gauge the evaporating pressure and the relevant saturation temperature. Adjust the valve acting on the adjustment screw, so that it intervenes when the evaporation temperature has decreased to C. hen check the correct operation of the thermostatic expansion valve Chilled water valve (F, D and H only) he -way (F) or -way (D/H) valve controls the chilled water flow and operates as follows (Fig. k): When the valve is fully open (i.e. max. chilled water flow) the actuator slot is set to ''. When the valve is closed (i.e. no chilled water flow) the actuator slot is set to '0'. he valve running time is set to the value specified in the Control Manual. Note : In the unlikely event of control system failure, the valve can be manually controlled by means of the rotary knob. It can be used to drive the actuator into any position between 0 and. Note : When actuator stem is completely down, the valve is open and chilled water coil is supplied Water leakage sensor (Liquistat) Due to high flooding alarm device sensitivity, to the end to avoid undesirable alarm signal because of few sporadic water drops, place the sensors at a minimum distance of 0 cm from the unit base perimeter. his solution assures alarm intervention for real flooding risk only Environment protection A misuse or an incorrect calibration of the unit leads to increased energy consumption, resulting in an economic and environmental damage. Use the freecooling function, if available. Fig. k - Position of the chilled water valve actuator (for or -way valve) 0 0 Position indicator on 0 = CLOSED valve (-way valve: by-pass open) Position indicator on = OPEN valve (-way valve: by-pass closed) Liebert HPM - Digital

17 0 - Maintenance / Spare Parts 0. - Safety instructions All maintenance operations must be carried out strictly observing the European and National accident prevention regulations. We refer especially to the accident prevention regulations concerning electrical systems, refrigerators, and manufacturing resources. Maintenance may be done to air conditioning equipment only by authorized and qualified technicians. o keep all warrantees valid the maintenance must adhere to the manufacturer's regulations. he work should be done in the system only when it is at standstill. Do this by switching off the air conditioner at the controller and the main switch. Post a warning sign saying: DO NO SWICH ON. Electrical components of device have to be switched off and be checked that they are not under voltage. Ignoring the safety instructions can be dangerous to persons as well as to the environment. Soiled parts always cause a loss of performance and for switch or control devices can lead to the break-down of a plant. Maintenance schedule 0. - Spare parts Only original spare parts made by Emerson Network Power may be used. Using third-party material can invalidate the warrantee. When making inquiries always refer to the Component List supplied with the equipment and specify the model number, serial number and, if available, the part number as well. NOES: ) When a faulty component is replaced, follow the relevant manufacturer instructions. ) When the spare parts must be welded, be carefully do not damage the internal parts (gaskets, seals, o-rings, etc.) Maintenance schedule Monthly, quarterly, biannual and annual checks to be conducted according to the following guidelines. All tasks and periods listed here are regulations from the manufacturer and need to be documented in an inspection report. All these tasks should be carried out only by an authorized and trained technician. We recommend the Emerson Network Power Customer Service MAINENANCE PERIOD EVERY COMPONEN Month Months Months Year FANS Attention, do not reach into the fan while the fan wheel is running. Check for soiling, damage, corrosion, and proper fixing. Check bearings noise. Check blower balancing. Vibrations (mm/s). Measure the current and power consumption. Cleaning to preserve the function. Check for soiling, damage, corrosion. AIR FILERS Check state of filter. Clean or replace if necessary. Carry out controls more frequently in dusty environments. NEW AIR FILER (if installed) see air filter. Clean or replace Check for proper and functionally correct installation and surrounding conditions. Check the function of the LEDs of the display's control system and the alarms. Check the connections for electrical and mechanical function. CONROL SYSEM Check the functional elements (e.g. operational controls and display devices). Check the electrical/electronic and pneumatic input signals (e.g. sensors, remote controllers, command variable) for compliance with nominal values. Check control function, control signals, and safety chains. Adjust control function and control signals. HUMIDIFIER (if installed) See appendix A. Check the power supply on all phases. SWICH CABINE POWER CIRCUIS Check the connections for electrical and mechanical function. Check the power supply at all terminals. Attention, electrical cables and electrical components of the air conditioner are under voltage. Measure power consumption at all connected consumers. Set, adjust, and tighten the functional elements (e.g. operational controls and display devices). Check safety equipment, e.g. thermal switch. Replace fuses (every - years) Check protective covers for completeness. Liebert HPM - Digital

18 MAINENANCE PERIOD EVERY COMPONEN Month Months Months Year COOLING WAER (W, F and H only) Check cooling water circuit. Check for damage, leaks, and proper fixing. Make sure there is no loss of water. Make sure that the water pump works properly. COOLING WAER (W, F and H only) Only for closed circuits: Deaerate circuits. Check whether the heat transfer medium of circuit-connected system is frost-proof. Check safety equipment for function. Check glycol% comparing minimum yearly ambient temperature. Measure the working pressures and temperatures (to be done by a refrigeration technician). REFRIGERAION CIRCUI Check the power consumption, measure head temperature, and check for possible abnormal operating sounds. Make sure that there is no frost building up on the evaporator and compressor. Check function of all regulating devices (power regulators, valves, etc.). Fluoride refrigerants increase the green- house effect and are subject to restrictions and norms, according to the national and European regulations. Check safety devices for function. If the quantity of refrigerant is not enough, it needs to be reclaimed and refilled with completely new refrigerant. Check oil level at the sight glass. Carry out an oil test. Change the oil after every 8000 hours of operation. Check valves Check crankcase heater for function. ELECRIC EPANSION VALVE and SUPERHEAING CONROLLER (if installed) See appropriate manual. EERNAL CONDENSER/ Dry cooler (if installed) See appropriate manual. Make sure there is no loss of water. Deaerate the cooling water circuit using the vent valve on the top right hand side of the cooling coil. Check that the cold water supply is ensured. CHILLED WAER CIRCUI (D and H only) Check the temperature and the pressure of the water on the inlet and outlet side using thermometers and manometers if installed. Check the proper function of the three-way valve. Make sure that the system is filled with the prescribed amount of glycol and that there is no frost in the hydraulic circuit. In case water loss needs to be refilled make sure the glycol concentration is correct. Check that the water circulation is in perfect order Refrigeration circuit WHEN REPAIRING HE REFRIGERAION CIRCUI COLLEC ALL REFRIGERAN IN A CONAINER: DO NO ALLOW I O ESCAPE. When either removing (for repairs) or charging refrigerant this must always be done on both the high and low pressure sides of the compressor simultaneously. he compressor copper plated steel connections should be welded with a silfos material containing a minimum of % silver Refrigerant charge of the water-cooled units (W, F and H) ) Start the unit as described in para... ) Manually start the compressor (ensure the unit is not in dehumidification). ) Wait a few minutes to allow conditions to stabilize. 4) Check the refrigerant circuit using a leak detector. If there is a leak recharge the unit until the working conditions of the entire refrigeration circuit have become normal. ) Using a manometer, check that the evaporating temperature is above 0 C. ) Verify the water pressostatic valve (WV) setting (CHAP. 8). ) Verify that the superheat is -8 K (to do this refer to Chap. 8). Liebert HPM - Digital

19 Oil charge R40C he oil to be used when topping up (only if there are any leaks) is EMKARAE RL -MA or Mobil EAL Arctic CC (see ab. g and ab. h). ab. g - EMKARAE RL -MA oil Viscosity at 40 C :. cst Viscosity at 00 C :. cst Viscosity index (ISO Grade) : ab. h - Mobil Arctic EAL CC oil Density (at C) : 0.9 kg/l Flash point (C.O.C.) : 4 C Pour point : <-4 C Viscosity at 40 C :. cst Viscosity at 00 C : 4. cst Viscosity index (ASM D0) : 0 hese oils rapidly absorb the humidity present in the air when they are exposed to the atmosphere. If the oil absorbs humidity, the ester molecules can break down, forming acidity. We therefore recommend exposing the oil for as short a time as possible (no more than a few minutes) and, in case of topping up, using exclusively the oil indicated on the refrigerating compressor. Normally or -litre cans are available for this purpose; once they are opened, they must be completely used up. hey must not be used after a long period, as they absorb humidity. It is therefore obvious that the taps of the compressor must only be turned after the whole plant has been subjected to a vacuum and partial filling Oil topping-up of an installed circuit If oil leakages occur, the topping-up operation is necessary. (Contact the local Service before intervention) Dismantling the unit he machine has been designed and built to ensure continuous operation. he working life of some of the main components, such as the fan and the compressor, depends on the maintenance that they receive. he unit contains substances and components hazardous for the environment (electronic components, refrigerating gases and oils). At the end of the useful life, when the unit is dismantled, the operation must be carried out by specialized refrigerating technicians. he unit must be delivered to suitable centers specialized for the collection and disposal of equipment containing hazardous substances. he refrigerating fluid and the lubricating oil inside the circuit must be recovered according to the laws in force in the relevant country Regulation (EC) no. 84/00 (F-gas) Stationary air conditioning placed into the European Community market and operating with fluorinated greenhouse gases (f-gas), such as R40C, R4a, R40A, they have to comply with the F-gas Regulation (applied since 04 July 00). (Be aware that refrigerants as R are not f-gas and their relevant regulation is Reg. (EC) no. 0/000). Following notes have to be considered when operating with the above mentioned equipments. Fluorinated greenhouse gases are covered by the Kyoto Protocol. he fluorinated greenhouse gases in this equipment should not be vented to the atmosphere. Referring to the value noted in Annex I of Regulation (EC) No 84/00 here below the global warming potential (GWP) of some major f-gases R-4a GWP 00 R-40C GWP 0 R-40A GWP 890 Operators of the above mentioned applications, which contain fluorinated greenhouse gases, shall, using all measures which are technically feasible and do not entail disproportionate cost: a. prevent leakage of these gases and as soon as possible repair any detected leakage. b. ensure that they are checked for leakage by certified personnel. c. ensure for putting in place arrangements for the proper recovery by certified personnel. d. In case of applications containing kg (kg in case of hermetically sealed system) or more of f-gases: certified personnel and Companies (according to Reg. 0/008) provides regular leak testing (according to Reg. /00 and Reg. 49/00) and maintain records of maintenance activities in a dedicated log book. e. Recovery for the purpose of recycling, reclamation or destruction of the fluorinated greenhouse gases, pursuant to Art.4 (Recovery) of Reg.84/00, shall take place before the final disposal of that equipment and, when appropriate, during its servicing and maintenance. Operator, according to Reg. 84/00, Article, point, means the natural or legal person exercising actual power over the technical functioning of the equipment and system covered by the Regulation. he State may, in defined, specific situations, designate the owner as being responsible for the operator's obligations. Direct methods of leakage checking approved by the manufacturer (Reg. /00 and Reg. 49/00) a. gas detection device adapted to the refrigerant in the system; the sensitive of portable gas detection devices (as a direct test method) shall be at least five grams par year. b. proprietary bubble solutions / soapsuds. Additional information located into a dedicated label of unit (Reg. 494/00) a. Where fluorinated greenhouse gas is foreseen to be added to the equipment outside of the manufacturing site at the point of installation, a dedicated label accommodates notation of both the quantity (kg) pre-charged in the manufacturing plant and of the quantity charged at the installation site as well as the resulting total quantity of f-gas as a combination of the above mentioned quantities, in a manner which conforms to the legibility and indelibility. Our split units are usually not pre-charged on factory, in this case the total quantity of refrigerant charged in the unit has to be written in the relevant label, during the commissioning operation at the installation site. b. Our packaged units (not split) operating with f-gas are usually full charged on factory and the total amount of refrigerant charge is already reported on the label. In this case, the label has no need of further written information. c. In generally, the above mentioned information has been located in the main nameplate of relevant unit. d. For equipment with double refrigeration circuits, in regards to differentiates requirements on the basis of the quantity of f-gas contained, the required information about refrigerant charge quantities has to be listed separately for each individual circuit. e. For equipments with separate indoor and outdoor sections connected by refrigerant piping, the label information will be on that part of the equipment which is initially charged with the refrigerant. In case of a split system (separate indoor and outdoor sections) without a factory pre-charge of refrigerant, the mandatory label information will be on that part of the product or equipment which contains the most suitable service points for charging or recovering the fluorinated greenhouse gas(es). Safety data sheets of f-gases used into the products are available on demand. Liebert HPM - Digital 4

20 App. A - HUMIDAIR humidifier A. - Preface he HUMIDAIR represents the best humidifier technology available, guaranteeing the steam as clean as possible together with simple maintenance. In order to obtain optimum performance from the HUMIDAIR it is advisable to read this manual carefully. ab. a - Humidair specifications HPM MODEL HUMIDAIR MODEL MAIN POWER SUPPLIES (V ± 0%) SEING ABSORBED CURREN POWER MA. CYLINDER WAER VOLUME MA. SUPPLY WAER QUANIY MA. DRAIN WAER QUANIY [kg/h] * [A] [kw] [l] [l/min.] [l/min.] D... KUECLD 400V / ph / 0Hz D... KUECLE 0V / ph / 0Hz D4... KUECLD 400V / ph / 0Hz D4... KUECLE 0V / ph / 0Hz ab. b - Humidair specifications for Displacement unit HPM MODEL HUMIDAIR MODEL MAIN POWER SUPPLIES (V ± 0%) SEING ABSORBED CURREN POWER MA. CYLINDER WAER VOLUME MA. SUPPLY WAER QUANIY MA. DRAIN WAER QUANIY [kg/h] * [A] [kw] [l] [l/min.] [l/min.] D... D KUECLD 400V / ph / 0Hz D... D KUECLE 0V / ph / 0Hz For humidifier current (FLA) and rated power, refer to electrical features in the air conditioner manual. (*) Unit is factory-set to produce about 0% of the maximum value (see icom manual). A. - Installation he humidifier is supplied already mounted within the air conditioner. he only necessary operations are the connections for the supply water (Fig. a) and drain water (Fig. b). Fig. a - Supply water connection SUPPLY WAER FEAURES he supply water temperature must never exceed 40 C. he supply water pressure must be between 0. and bar. If greater, use a pressure reducing valve set to -4 bar. Sanitary water should be used. Do not use demineralized water or water containing impurities. Conductivity range : -0 S/cm. B water supply supplying limit A CU-OFF AP Must be included in the supply water tubing. SUPPLY WAER UBING It is supplied a. m long plastic tube, with ½ G m connections. ALERNAIVE SUPPLY WAER UBING Unscrew the ring nut A and connect a tube straight to the /4 G Male connection B on the humidifier. Liebert HPM - Digital A -

21 Fig. b - Drain water connection DRAIN WAER DEVICE Dispose the drain water into an ordinary drainage network, using a funnel (the drainage network must be able to withstand water temperatures up to 00 C). K L WAER DRAIN UBING It is supplied a hose with an integral drain trap. DO NO DISMANLE HE DRAIN RAP. DO NO DISMANLE HE DRAIN RAP. he hose is already fitted onto the humidifier drain outlet (K). Fill the drain trap with water (L). he drain pipe is made of plastic material which does not conduct electricity. NOES: ) Allow a % gradient towards the drain outlet. ) Avoid back pressures in the drain piping. A. - Humidair components he components of the HUMIDAIR humidifiers are shown below. Fig. c - he humidifier and its connections DRAIN VALVE ASSEMBLY (D) S steam outlet Y from humidifier power electrodes to electrical supply A U Z P from level sensor to interface filling cup L H O level electrode R SUPPLY VALVE (F) overflow tube C power electrodes steam cylinder F drain valve G supply valve F V V D from supply valve to interface water supply N drain tank E water drain outlet from supply valve to interface A - Liebert HPM - Digital

22 A.4 - Start-up and operation A.4. - Start-up Before using the humidifier, check the following: Supply and drain connections. hat the cut-off tap is open. All wiring. Earthing. Steam hose connection between steam cylinder and distributor. o start the humidifier simply switch on the air conditioner, which will in turn automatically start and stop the humidifier as required. he (adjustable) parameters which determine humidifier operation have already been factory-preset (see icom manual). A.4. - Operation Water, provided it contains even a small quantity of salts in solution, is a conductor of electricity. herefore, if the steam cylinder is filled with water and a potential difference is applied between the electrodes, the water behaves like an ordinary electrical resistance and becomes hot, thus creating steam. he steam production rate can be controlled by varying the water level in the cylinder; the higher the water level, the deeper the electrodes are immersed into it and the greater the steam production. Note In case of low water conductivity consult HPAC echnical Sales Support. Note When starting with an empty cylinder, the water conductivity is normally insufficient for the HUMIDIFIER SEAM OUPU to be reached immediately. herefore the humidifier produces as much steam as possible to fill the cylinder completely. Any evaporation water is immediately refilled. he drain valve is kept shut and therefore, as the steam does not contain any salts, the conductivity of the water within the cylinder slowly increases until the HUMIDIFIER SEAM OUPU is obtained. he length of the start-up period depends upon the water conductivity. For very conductive water it may occur that the HUMIDIFIER SEAM OUPU is obtained immediately. A. - Maintenance A.. - Removing the steam cylinder o remove the steam cylinder, proceed as follows (see Fig. c): ) Open the General Switch relative to the humidifier. ) Drain all the water from the cylinder by activating HUM. DRAIN in the CONROL Service menu several times (see Control manual). ) Disconnect the steam hose (S) (made of non-conductive rubber). 4) Disconnect the power electrode wires (P) and level sensor wire (L). ) Undo the clip (R). ) Pull the cylinder (C) out of its gland at the bottom (G). A.. - Replacing the steam cylinder When the steam cylinder is approaching the stage where it needs to be replaced, warning A is generated (see Control manual) to advise the user that the cylinder must be replaced. o replace the cylinder, proceed as follows (see Fig. c): ) Carry out the instructions in para. A... ) Using the new cylinder, carry out 4)-) of para.. in reverse order. ) Connect the steam hose (S); the clip on the hose needs to be tightened only slightly. 4) Manually switch the humidifier on for - minutes (in the icom Service menu). hen switch it off. ) Drain the water as for ) in para. A... ) If the air conditioner features a icom CDL with Graphic display, reset the humidifier working hours (window no. of PARAMEER MENU) to zero. ) Close the General Switch relative to the humidifier. A.. - Annual maintenance Annually (e.g. before any close-down period) carry out the following service on the humidifier (see Fig. c): ) Carry out the instructions in para. A... ) Disconnect the supply (F) and drain (D) valve wires. ) Unscrew and remove the drain tank (). 4) Unscrew the drain valve assembly screws (V). ) Remove the drain valve assembly. ) Unscrew and remove the drain valve solenoid (O). ) Unscrew and remove the drain valve armature (D). 8) Clean all parts of the drain valve using a commercially available descaling agent (to remove any incrustations). 9) Detach the hose from the supply valve. 0) Remove the supply valve connection (N). ) Unscrew the supply valve (F) and remove it. ) Clean the supply valve using a jet of water. ) Replace any hose which has become hard and brittle. 4) horoughly flush the drain line (E). ) Reassemble the humidifier by carrying out the above instructions in reverse order. AENION Always empty the cylinder completely before any close- down period. Liebert HPM - Digital A -

23 A. - Humidifier spare part list It is recommended the use of original spare parts. When placing an order quote the part code, as well as the air conditioner model no. and serial no. POSIION (see Fig. c) C CODE Humidair Model KUExxx CLA CLB CLC CLD CLE 4090 Steam cylinder CLA (*) 409 Steam cylinder CLB (*) 409 Steam cylinder CLC (*) 409 Steam cylinder CLD (*) 4094 Steam cylinder CLE (*) Drain tank U Filling cup K Rubber gasket for drain tank F 840 Complete supply valve A 84 Drain valve armature H 84 Drain valve housing O 400 Drain valve solenoid (*) (+) = Spare part recommended (*) = Consumable material 490 Isolator for level sensor Notes A - 4 Liebert HPM - Digital

24 echnical data table ab. - Electrical data Configuration Cooling Fan + compressor Cooling + Electrical heating Fan + compressor + electrical heaters Cooling + Electrical heating + Humidification Fan + compressor + electrical heaters + humidifier NOES: Model DxA/W Power supply FLA [A] LRA [A] RESIDUAL-CURREN CIRCUI BREAKERS I n = 0.A (400V).0 A DxA/W/F/D/H.0 8 0A D0xA/W/F/D/H.0 9 A DxA/W/F/D/H.0 00 A DxA/W/F/D/H.0 00 A 400 V/ N/0 Hz D4xA/W/F/D/H A DxA/W/F/D/H A D4xA/W/F/D/H A D0xA/W/F/D/H 4.0 0A DxA/W A DxA/W.0 A DxA/W/F/D/H 4.0 A D0xA/W/F/D/H.0 8 A DxA/W/F/D/H A DxA/W/F/D/H.0 40A 400 V/ N/0 Hz D4xA/W/F/D/H A DxA/W/F/D/H 0.0 A D4xA/W/F/D/H A D0xA/W/F/D/H 48.0 A DxA/W A DxA/W.0 A DxA/W/F/D/H 4.0 A D0xA/W/F/D/H.0 88 A DxA/W/F/D/H A DxA/W/F/D/H.0 40A 400 V/ N/0 Hz D4xA/W/F/D/H A DxA/W/F/D/H 0.0 A D4xA/W/F/D/H A D0xA/W/F/D/H A DxA/W.0 00A he cables have to be sized in compliance with local standards and according to the type and characteristics (e.g. Amperes) of installation. he specific power of the user-installed switch, must be lower than 00,000 A x s. Prescriptions on the differential relay required to the user: for special places (healthcare facilities, etc...) comply with the local regulations; For ordinary places, a low sensitivity is suggested (00 ma) coordinated with the value of the ground heater (IEC 4): Ra 0/Ia (Art , CEI 4-8); In case of frequent over-voltages with mains impulse, it is advisable to install a selective differential and to evaluate the need for adopting other devices. Liebert HPM - Digital B -

25 echnical data table ab. - Standard fan connections for Liebert HPM with autotransformer Configuration UNDER (U) OVER (O) UNDER (F/D/H) OVER (F/D/H) DISPLACEMEN (D) NOES: Model Fan motor type/connection Autotrasformer outlet voltage Standard Dehumidification Under / Over xa/w Ph. / Y 0 0 xa/w Ph. / Y xA/W Ph. / Y 0 90 xa/w Ph. / Y 90 0 xa/w Ph. / Y xA/W Ph. / 0 0 xa/w Ph. / 0 0 4xA/W Ph. / Y xA/W Ph. / Y 0 0 xa/w Ph. / Y 0 90 xf/d/h Ph. / Y xF/D/H Ph. / Y 0 90 xf/d/h Ph. / Y 90 0 xf/d/h Ph. / Y xF/D/H Ph. / 90 0 xf/d/h Ph. / xF/D/H Ph. / Y 0 0 0xF/D/H Ph. / Y 90 0 DxA/W Ph. / Y 0 90 DxA/W Ph. / Y 0 0 0DxA/W Ph. / Y 90 0 DxA/W Ph. / Y 0 0 DxA/W Ph. / Y o change the ESP (External Static Pressure) of the fan (0 Pa for Under and 0 Pa for Over) it is necessary to move the following wires: - R- e R4-4 (dehumidification) on D--0- Attention: Do not modify Y connections to. ab. b - EC optional fan connections UNDER (U) OVER (O) Model Std Dehumidification Std Dehumidification VDC VDC VDC VDC xa/w.... xa/w xA/W.... xa/w xf/d/h xF/D/H.... xf/d/h xa/w xA/W.... xa/w.... 4xA/W.... 0xA/W xa/w xf/d/h xF/D/H xf/d/h xF/D/H xF/D/H NOE: he EC fan settings can be modified acting on the control display (see icom manual) B - Liebert HPM - Digital

26 echnical data table ab. - Component Electrical data (standard component) FAN (Ph - 400V: S-S) (Ph - 0V: S04-S0-S0-S) Model OA* FLA LRA Nominal power (kw)* R40C OA** FLA LRA COMPRESSOR (Ph - 400V - 0Hz) (Ph - 0V: S04-S0) Nominal power (kw)** MOOR Winding resistance (Ohm) xu/o xu/o xU/O xu/o xu/o xu/o xU/O x. x.4 x. x.8. 4xU/O x4. x4.8 x9.0 x. x.9 x. x4.0 x4.9. 0xU/O x4. x4.8 x9.0 x.4 x. x.9 x9.0 x xu/o x4. x4.8 x9.0 x.09 x. x.0 x.0 x.98.0 (*) At standard operating conditions ESP: 0 Pa for Over units and 0 Pa for Under units Filters: class G4 (**)At nominal operating conditions: Condensing temperature 4 C - Room conditions 4 C / 0% RH ab. 4 - Electrical data (optional component) Component ELECRICAL HEAING HUMIDIFIER Model FLA [A] Nominal power [kw] (400V / Ph / 0Hz) FLA [A] Nominal power [kw]... U/O U/O U/O Component EC OPIONAL FAN (400V / Ph / 0Hz) Model OA* [A] FLA [A] LRA [A] Nominal power* (kw) UA UA UA UA UA UA x.04 x 4.0 x 0. x 0. UA x.04 x 4.0 x 0. x 0. 4UA x.9 x 4.0 x 0. x UA x. x 4.0 x 0. x.40 UA x. x 4.0 x 0. x.94 (*) At standard operating conditions ESP: 0 Pa for Under unitsd...xxua - Filters: class G4 Liebert HPM - Digital B -

27 echnical data table ab. - Calibrations of electrical components Refrigeration Circuit Item no. COMPONEN SEING NOES Contact Low Pressure Switch (LP) SOP SAR DIFFER. (fixed) barg.8 barg 0.8 bar (fixed setting - automatic reset) Delayed automatic reset (see icom manual) Nolmally closed High Pressure Switch (HP) SOP SAR DIFFER. (fixed) barg 0 barg.0 bar (fixed setting - manual reset) Reset Nolmally closed - Clogged filter differential pressure switch (CF) Filter G4 = mbar Filter G = mbar Nolmally closed Setting ring B - 4 Liebert HPM - Digital

28 echnical data table ab. - Adjustments and calibrations of valves (see Enclosed E - Refrigeration circuits) Refrigerant Circuit Pos. Component Calibration & Operating Application Model Drawing 0 Electric expansion valve Overheating control 8 K (see par. 9.) Version EEV Siemens MVL Pressostatic valve with magnetic actuator Condensing control with modulating action controlled by icom 0 0 VDC Liebert HPM W/F/H Siemens MG4 Hot gas injection way valve Reheating mode On-Off action controlled by icom (reheating) Liebert HPM A/W/F/D/H Sporlan 8DB -way chilled water valve Modulating action (servomotor: see para. 9.4) Liebert HPM F Siemens VP way chilled water valve Modulating action (servomotor: see para. 9.4) Liebert HPM D-H Siemens VP 49 Electric pressostatic valve Proportional action (coupled to valve 9) Liebert HPM W/F/H Siemens 8 hermostatic valve Overheating control K Version V Sporlan Liebert HPM - Digital B -

29 echnical data table ab. - R40C refrigerant and oil charge for air cooled models (A-D type) MODEL BASE REFRIGERAN CHARGE ( ) [kg - each circuit] BASE OIL CHARGE ( ) (liters) oil within compressor without hot gas reheating with hot gas reheating initial oil charge Max topping up xa xa xd xA xD xa xd xa- D xa- D xA- D xA- D xA- D xa ab. a - Refrigerant and oil pipe charge Pipe diameter [mm] Refrigerant pipe charge [kg/m] for distances D ( ) Oil pipe charge [l] Liquid without hot gas reheating with hot gas reheating charge to be added for every 0 m over 0 m between CD and COND without hot gas reheating charge to be added for every 0 m over 0 m between CD and COND with hot gas reheating ( 4 ) () he recommended oil is EMKARAE RL -MA. () Unit coupled with remote condenser suggested for ambient temperature up to C. he final charge must be precisely defined in field. () For distance D see Fig.. (4) opping up is requested for short pipeline too, due to the extra-charge of refrigerant. N.B.: he air conditioner is supplied pressurized with helium at bar. Fig. - Pipeline air conditioner - condenser c COND (Distance) D = a + b + c CD b CD = Conditioner COND = Condenser a B - Liebert HPM - Digital

30 echnical data table ab. 8 - Refrigerant and oil charge for water cooled models (W-F-H type) MODEL R40C/R REFRIGERAN CHARGE [kg - each circuit] without hot gas reheating with hot gas reheating OIL CHARGE ( ) (liters) xw.8.. xw.8..9 xf- H xW xF- H xw xf- H xw- F- H..8. xw- F- H xW- F- H xW- F- H xW- F- H. 9.. xw N.B.: he air conditioner is supplied complete with refrigerant and oil. () he recommended oil is EMKARAE RL -MA. Liebert HPM - Digital B -

31 Installation drawings Fig.. Overall dimensions Service Area D.. models Fig.. Overall dimensions Service Area D 90 B Plenum 90 B Base module Fig.. Overall dimensions Service Area D B Models A (mm) Simple plenum AVAILABLE PLENUM HEIGHS: B (mm) Plenum for silencing cartridges Plenum for high efficiency filters Plenum with frontal airflow (OVER only) C - Liebert HPM - Digital

32 Installation drawings MODELS WEIGHS (kg) Versions A W F D H K / A K / W Fig. 4. Air inlet and outlet - hole for plenum connection nr.4+4 ø,mm Models A mm B mm C mm D mm E mm F mm G mm Liebert HPM - Digital C -

33 Installation drawings Fig.. Hole in raised floor WALL A C B FRON UNI BASE FRAME ACCESSORY F D E MODELS without base frame Dimensions (mm) A B C with base frame without base frame with base frame without base frame FRON UNI with base frame D E F CAUION: For UNDER units installed on raised floor, inhibit inappropriate access to the unit from the base to not-authotized staff: i.e. fixing the floor panels up to 80 mm from the unit. Fig.. Extension hood Fig.. Over conditioner with electrical heaters. Upflow ducted conditioner equipped with electrical heaters, connected to air duct not supplied by Emerson Network Power. Pay attention to the position of insulating material! ÈÈÈÈÈÈ ÈÈÈÈÈÈ È Insulation 0 cm Heaters Note: See Chap. C - Liebert HPM - Digital

34 Installation drawings Fig. 8. Base module Fig. 9. Base frame Fig. 0. High efficiency filters Liebert HPM - Digital C - 4

35 Installation drawings Fig.. New air module Flexible tube OVER Flexible tube passage UNDER MODELS Dimensions (mm) A B C Fig.. Bleed valve position Bleed valve position...0 F/D/H models C - Liebert HPM - Digital

36 Installation drawings Fig.. Supply cable path Liebert HPM D... Electrical connection path through service area UNDER/DISPLACEMEN Electrical connection path directly to the electrical panel OVER Liebert HPM D4... Liebert HPM D Electrical connection path through service vane UNDER/OVER Liebert HPM - Digital C -

37 Refrigerant and hydraulic connections Fig.. Refrigerant, water and electrical connectionsliebert HPM D... no. 4 holes 48 IHW (over) IFC 0 0 EC CD HF HD OHW OFC (over) OG OWC OHW (under) IL IWC IHW (under) UNI FRON Unit Connection Version A W D H F IL Refrigerant liquid line inlet * OD mm OD mm OG Refrigerant gas line outlet * OD 8 mm OD 8 mm IWC Water to condenser inlet /4 GAS-F /4 GAS-F OWC Water from condenser outlet /4 GAS-F /4 GAS-F IHW Hot water inlet (opt.) OD 8 mm OHW Hot water outlet (opt.) OD 8 mm IFC Water inlet to Freecooling/Dualfluid coil GAS-F GAS-F GAS-F OFC Water outlet from Freecooling/Dualfluid coil GAS-F GAS-F GAS-F CD Condensate drain ID 0 mm HF Humidifier feed (opt.) / GAS-M HD Humidifier drain (opt.) ID mm EC Electrical power supply Hole 48 mm * Connection size only. he dimension of the connecting pipe depends on unit model and refrigerant, see ab. c on para D - Liebert HPM - Digital

38 Refrigerant and hydraulic connections Fig.. Refrigerant, water and electrical connections Liebert HPM D CD 0 no. 4 holes HF HD IHW OHW IFC OFC IL/ IWC OG/ OWC EC Precut holes UNI FRON Unit Connection Version A W D H F IL Refrigerant liquid line inlet * OD mm OD mm OG Refrigerant gas line outlet * OD 8 mm OD 8 mm IWC Water to condenser inlet GAS-F GAS-F OWC Water from condenser outlet GAS-F GAS-F IHW Hot water inlet (opt.) OD 8 mm OHW Hot water outlet (opt.) OD 8 mm IFC Water inlet to Freecooling and Dualfluid coil GAS-F GAS-F./4 GAS-F OFC Water outlet from Freecoolingn and Dualfluid coil GAS-F GAS-F./4 GAS-F CD Condensate drain ID 0 mm HF Humidifier feed (opt.) / GAS-M HD Humidifier drain (opt.) ID mm EC Electrical power supply Hole 48 mm * Connection size only. he dimension of the connecting pipe depends on unit model and refrigerant, see ab. c on para Liebert HPM - Digital D -

39 Refrigerant and hydraulic connections Fig Refrigerant, water and electrical connections Liebert HPM D CD no. holes HF HD IHW OHW EC IWC /IL OWC /OG OWC /OG OFC F IWC /IL IFC F OFC D+H IFC D+H Models Unit Connection Precut holes UNI FRON Version A W D H F IL Refrigerant liquid line inlet * OD mm OD mm IL Refrigerant liquid line inlet * OD mm OD mm OG Refrigerant gas line outtlet * OD 8 mm OD 8 mm OG Refrigerant gas line outlet * OD 8 mm OD 8 mm IWC./4 GAS-F./4 GAS-F 4-4 IWC Water to condenser inlet /4 GAS-F /4 GAS-F 4-4 IWC /4 GAS-F /4 GAS-F 0- IWC Water to condenser inlet./4 GAS-F./4 GAS-F - 0- OWC./4 GAS-F./4 GAS-F 4-4 OWC Water from condenser outlet /4 GAS-F /4 GAS-F 4-4 OWC /4 GAS-F /4 GAS-F 0- OWC Water from condenser outlet./4 GAS-F./4 GAS-F Dxx IHW Hot water inlet (opt.) OD mm Dxx OHW Hot water outlet (opt.) OD mm 4- IFC (F)./4 GAS-F 4-0 IFC (F) Water inlet to Freecooling./ GAS-F 4- OFC (F)./4 GAS-F 4-0 OFC (F) Water outlet from Freecooling./ GAS-F 4- IFC (D+H)./4 GAS-F./4 GAS-F 4-0 IFC (D+H) Water inlet to Dualfluid./ GAS-F./ GAS-F 4- OFC (D+H)./4 GAS-F./4 GAS-F 4-0 OFC (D+H) Water outlet from Dualfluid./ GAS-F./ GAS-F Dxx CD Condensate drain ID 0 mm Dxx HF Humidifier feed (opt.) / GAS-M Dxx HD Humidifier drain (opt.) ID mm Dxx EC Electrical power supply Hole 48 mm * Connection size only. he dimension of the connecting pipe depends on unit model and refrigerant, see ab. c on para * Inlet, outlet referred to standard scroll compressor circuit. * Inlet, outlet referred to digital scroll compressor circuit. 0 D - Liebert HPM - Digital

40 Refrigerant and hydraulic connections Fig. 4. Refrigeration connections Frontal view Liebert HPM DxxxA liquid line gas line OG IL Non-return valve IL OG Refrigerant pipe inlet Refrigerant pipe outlet Notes: recommended diameters see able in Chap. 4. Fig.. Water connections Liebert HPM DxxxF/H Frontal view OWC IWC IWC OWC Water to condenser inlet Water from condenser outlet Liebert HPM - Digital D - 4

41 Refrigerant and hydraulic connections Fig.. Chilled water and refrigerant connections Liebert HPM DxxxD Frontal view Non-return valve OFC IFC OG IL IL OG IFC OFC Refrigerant liquid line inlet Refrigerant gas line outlet Water inlet to Freecooling coil Water outlet to Dry-Cooler Fig.. Chilled water and refrigerant connections Liebert HPM DxxxH Frontal view OFC IFC OWC IWC IWC OWC IFC OFC Water to condenser inlet Water from condenser outlet Water inlet to Freecooling coil Water outlet to Dry-Cooler D - Liebert HPM - Digital

42 Refrigeration circuits - EEV with suction accumulator Refrigeration circuits - EEV with suction accumulator Fig.. Liebert HPM D... U/O A ONLY WIH REHEAING COIL OPION FG SUPPLY LIMI SUPPLY LIMI CONDENSING UNI Compressor Crankcase heater High pressure switch (HP) 4 Air cooled condenser Liquid receiver Access valve Safety valve 8 Filter dryer 9 Sight glass 0 Electronic expansion valve Pressure transducer air condenser Check valve Shut-off valve 4 Hot gas solenoid valve (optional) Evaporator Low pressure switch (LP) 8 Pressure transducer for electronic expansion valve 9 Suction accumulator 0 Capacity mod. solenoid valve (external for --0) Shut-off solenoid valve Reheating coil (optional) hermostat for electronic expansion valve 4 Check valve (for --0 only) Pressure transducer for HP Liebert HPM - Digital E -

43 Refrigeration circuits - EEV with suction accumulator Fig.. Liebert HPM D4... U/O A ONLY WIH REHEAING COIL OPION SUPPLY LIMI 9 FG FG SUPPLY LIMI SUPPLY LIMI 4 4 CONDENSING UNI CONDENSING UNI Compressor Crankcase heater High pressure switch (HP) 4 Air cooled condenser Liquid receiver Access valve Safety valve 8 Filter dryer 9 Sight glass 0 Electronic expansion valve Pressure transducer air condenser Check valve Shut-off valve 4 Hot gas solenoid valve (optional) Evaporator Low pressure switch (LP) 8 Pressure transducer for electronic expansion valve 9 Suction accumulator 0 Capacity mod. solenoid valve (external for 4-4) Shut-off solenoid valve Reheating coil (optional) hermostat for electronic expansion valve 4 Check valve (for 4-4 only) Pressure transducer for HP 8 hermostatic explansion valve E - Liebert HPM - Digital

44 Refrigeration circuits - EEV with suction accumulator Fig.. Liebert HPM D... U/O W 4 ONLY WIH REHEAING COIL OPION 8 0 FG SUPPLY LIMI 0 COOLING WAER OULE 4 COOLING WAER INLE SUPPLY LIMI Compressor Crankcase heater High pressure switch (HP) 4 Water cooled condenser Liquid receiver Access valve Safety valve 8 Filter dryer 9 Sight glass 0 Electronic expansion valve Pressure transducer water condenser Check valve Shut-off valve 4 Hot gas solenoid valve (optional) Evaporator Low pressure switch (LP) 8 Pressure transducer for electronic expansion valve 9 Suction accumulator 0 Capacity mod. solenoid valve (external for --0) Shut-off solenoid valve Reheating coil (optional) hermostat for electronic expansion valve 4 Check valve (for --0 only) Condensing water valve Liebert HPM - Digital E -

45 Refrigeration circuits - EEV with suction accumulator Fig. 4. Liebert HPM D4... U/O W ONLY WIH REHEAING COIL OPION FG 9 FG SUPPLY LIMI COOLING WAER OULE 4 4 COOLING WAER INLE SUPPLY LIMI Compressor Crankcase heater High pressure switch (HP) 4 Water cooled condenser Liquid receiver Access valve Safety valve 8 Filter dryer 9 Sight glass 0 Electronic expansion valve Pressure transducer water condenser Check valve Shut-off valve SUPPLY LIMI 4 Hot gas solenoid valve (optional) Evaporator Low pressure switch (LP) 8 Pressure transducer for electronic expansion valve 9 Suction accumulator 0 Capacity mod. solenoid valve (external for 4-4) Shut-off solenoid valve Reheating coil (optional) hermostat for electronic expansion valve 4 Check valve (for 4-4 only) Condensing water valve Head pressure control valve 8 hermostatic explansion valve E - 4 Liebert HPM - Digital

46 Refrigeration circuits - EEV with suction accumulator Fig.. Liebert HPM D... U/O F 4 ONLY WIH REHEAING COIL OPION FG SUPPLY LIMI 0 COOLING WAER OULE 4 COOLING WAER INLE SUPPLY LIMI Compressor Crankcase heater High pressure switch (HP) 4 Water cooled condenser Liquid receiver Access valve Safety valve 8 Filter dryer 9 Sight glass 0 Electronic expansion valve Pressure transducer water condenser Check valve Shut-off valve 4 Hot gas solenoid valve (optional) Evaporator Low pressure switch (LP) 8 Pressure transducer for electronic expansion valve 9 Suction accumulator 0 Capacity mod. solenoid valve (external for -0) Shut-off solenoid valve Reheating coil (optional) hermostat for electronic expansion valve 4 Check valve (for -0 only) Condensing water valve 9 Minimum pressure switch 0 Chilled water coil Inlet water thermostat Manual bleed valve 4 Chilled water -way valve Liebert HPM - Digital E -

47 Refrigeration circuits - EEV with suction accumulator Fig.. Liebert HPM D4...0 U/O F P FG FG SUPPLY LIMI COOLING WAER INLE COOLING WAER OULE SUPPLY LIMI Compressor Crankcase heater High pressure switch (HP) 4 Water cooled condenser Liquid receiver Access valve Safety valve 8 Filter dryer 9 Sight glass 0 Electronic expansion valve Pressure transducer water condenser Check valve Shut-off valve 4 Hot gas solenoid valve (optional) Evaporator Low pressure switch (LP) 8 Pressure transducer for electronic expansion valve ONLY WIH REHEAING COIL OPION 9 Suction accumulator 0 Capacity mod. solenoid valve (external for 4-4) Shut-off solenoid valve Reheating coil (optional) hermostat for electronic expansion valve 4 Check valve (for 4-4 only) Condensing water valve Head pressure control valve 8 hermostatic explansion valve 9 Minimum pressure switch 0 Chilled water coil Inlet water thermostat Manual bleed valve 4 Chilled water -way valve Safety thermostat Hot gas injection valve (antifreeze) Hot gas injector E - Liebert HPM - Digital

48 Refrigeration circuits - EEV with suction accumulator Fig.. Liebert HPM D... U/O D ONLY WIH REHEAING COIL OPION FG SUPPLY LIMI SUPPLY LIMI CHILLED WAER INLE CHILLED WAER OULE 4 CONDENSING UNI Compressor Crankcase heater High pressure switch (HP) 4 Air cooled condenser Liquid receiver Access valve Safety valve 8 Filter dryer 9 Sight glass 0 Electronic expansion valve Pressure transducer air condenser Check valve Shut-off valve 4 Hot gas solenoid valve (optional) Evaporator Low pressure switch (LP) 8 Pressure transducer for electronic expansion valve 9 Suction accumulator 0 Capacity mod. solenoid valve (external for -0) Shut-off solenoid valve Reheating coil (optional) hermostat for electronic expansion valve 4 Check valve (for -0 only) Pressure transducer for HP 9 Minimum pressure switch 0 Chilled water coil Chilled water -way valve Inlet water thermostat Manual bleed valve Liebert HPM - Digital E -

49 Refrigeration circuits - EEV with suction accumulator Fig. 8. Liebert HPM D4...0 U/O D ONLY WIH REHEAING COIL OPION P 0 SUPPLY LIMI 9 FG FG SUPPLY LIMI 4 CHILLED WAER INLE SUPPLY LIMI CHILLED WAER OULE 4 4 CONDENSING UNI CONDENSING UNI Compressor Crankcase heater High pressure switch (HP) 4 Air cooled condenser Liquid receiver Access valve Safety valve 8 Filter dryer 9 Sight glass 0 Electronic expansion valve Pressure transducer air condenser Check valve Shut-off valve 4 Hot gas solenoid valve (optional) Evaporator Low pressure switch (LP) 8 Pressure transducer for electronic expansion valve 9 Suction accumulator 0 Capacity mod. solenoid valve (external for 4-4) Shut-off solenoid valve Reheating coil (optional) hermostat for electronic expansion valve 4 Check valve (for 4-4 only) Pressure transducer for HP 9 Minimum pressure switch 0 Chilled water coil Chilled water -way valve Inlet water thermostat Manual bleed valve Safety thermostat Hot gas injection valve (antifreeze) Hot gas injector E - 8 Liebert HPM - Digital

50 Refrigeration circuits - EEV with suction accumulator Fig. 9. Liebert HPM D... U/O H ONLY WIH REHEAING COIL OPION FG SUPPLY LIMI 0 CHILLED WAER INLE CHILLED WAER OULE COOLING WAER OULE 4 COOLING WAER INLE SUPPLY LIMI Compressor Crankcase heater High pressure switch (HP) 4 Water cooled condenser Liquid receiver Access valve Safety valve 8 Filter dryer 9 Sight glass 0 Electronic expansion valve Pressure transducer water condenser Check valve Shut-off valve 4 Hot gas solenoid valve (optional) Evaporator Low pressure switch (LP) 8 Pressure transducer for electronic expansion valve 9 Suction accumulator 0 Capacity mod. solenoid valve (external for -0) Shut-off solenoid valve Reheating coil (optional) hermostat for electronic expansion valve 4 Check valve (for -0 only) Condensing water valve 9 Minimum pressure switch 0 Chilled water coil Chilled water -way valve Inlet water thermostat Manual bleed valve Liebert HPM - Digital E - 9

51 Refrigeration circuits - EEV with suction accumulator Fig. 0. Liebert HPM D4...0 U/O H ONLY WIH REHEAING COIL OPION P FG FG CHILLED WAER INLE CHILLED WAER OULE COOLING WAER OULE 4 4 COOLING WAER INLE SUPPLY LIMI SUPPLY LIMI Compressor Crankcase heater High pressure switch (HP) 4 Water cooled condenser Liquid receiver Access valve Safety valve 8 Filter dryer 9 Sight glass 0 Electronic expansion valve Pressure transducer water condenser Check valve Shut-off valve 4 Hot gas solenoid valve (optional) Evaporator Low pressure switch (LP) 8 Pressure transducer for electronic expansion valve 9 Suction accumulator 0 Capacity mod. solenoid valve (external for 4-4) Shut-off solenoid valve Reheating coil (optional) hermostat for electronic expansion valve 4 Check valve (for 4-4 only) Condensing water valve Head pressure control valve 8 hermostatic explansion valve 9 Minimum pressure switch 0 Chilled water coil Chilled water -way valve Inlet water thermostat Manual bleed valve Safety thermostat Hot gas injection valve (antifreeze) Hot gas injector E - 0 Liebert HPM - Digital

52 Refrigeration circuits - EEV Refrigeration circuits - EEV Fig.. Liebert HPM D... U/O A FG (ONLY FOR D--0) SUPPLY LIMI SUPPLY LIMI 0 (EERNAL FOR D--0) 4 ONLY WIH REHEAING COIL OPION CONDENSING UNI Compressor Crankcase heater High pressure switch (HP) 4 Air cooled condenser Liquid receiver Access valve Safety valve 8 Filter dryer 9 Sight glass 0 Electronic expansion valve (EEV) Check valve Shut-off valve 4 Reheating solenoid valve (optional) Evaporator Low pressure switch (LP) 8 Pressure transducer for electronic expansion valve 0 Capacity mod. solenoid valve (ext. for D--0) Shut-off solenoid valve Reheating coil (optional) emperature sensor for EEV 4 Check valve (for D--0 only) Pressure transducer for HP Liebert HPM - Digital E -

53 Refrigeration circuits - EEV Fig.. Liebert HPM D... U/O W ONLY WIH REHEAING COIL OPION FG (ONLY FOR D--0) 0 (EERNAL FOR D--0) (ONLY FOR D--0) WAER OULE AB A B 4 WAER INLE Compressor Crankcase heater High pressure switch (HP) 4 Water cooled condenser Liquid receiver Access valve (for D--0 only) Safety valve 8 Filter dryer 9 Sight glass 0 Electronic expansion valve (EEV) Pressure transducer condensing regulation Check valve Shut-off valve 4 Reheating solenoid valve (optional) Evaporator Low pressure switch (LP) 8 Pressure transducer for electronic expansion valve 0 Capacity mod. solenoid valve (ext. for D--0) Shut-off solenoid valve Reheating coil (optional) emperature sensor for EEV 4 Check valve (for D--0 only) Condensing regulation water valve E - Liebert HPM - Digital

54 Refrigeration circuits - EEV Fig.. Liebert HPM D... U/O F ONLY WIH REHEAING COIL OPION FG (ONLY FOR D-0) 0 (EERNAL FOR D-0) WAER OULE 4 WAER INLE Compressor Crankcase heater High pressure switch (HP) 4 Water cooled condenser Liquid receiver Access valve Safety valve 8 Filter dryer 9 Sight glass 0 Electronic expansion valve (EEV) Pressure transducer condensing regulation Check valve Shut-off valve 4 Reheating solenoid valve (optional) Evaporator Low pressure switch (LP) 8 Pressure transducer for electronic expansion valve 0 Capacity mod. solenoid valve (ext. for D-0) Shut-off solenoid valve Reheating coil (optional) emperature sensor for EEV 4 Check valve (for D-0 only) Condensing regulation water valve 9 Minimum pressure switch 0 Chilled water coil Inlet water thermostat Manual bleed valve 4 Chilled water -way valve Liebert HPM - Digital E -

55 Refrigeration circuits - EEV Fig. 4. Liebert HPM D... U/O D ONLY WIH REHEAING COIL OPION FG (ONLY FOR D-0) SUPPLY LIMI SUPPLY LIMI COOLING WAER INLE COOLING WAER OULE (EERNAL FOR D-0) 4 CONDENSING UNI Compressor Crankcase heater High pressure switch (HP) 4 Air cooled condenser Liquid receiver Access valve Safety valve 8 Filter dryer 9 Sight glass 0 Electronic expansion valve (EEV) - Check valve Shut-off valve 4 Reheating solenoid valve (optional) Evaporator Low pressure switch (LP) 8 Pressure transducer for electronic expansion valve 0 Capacity mod. solenoid valve (ext. for D-0) Shut-off solenoid valve Reheating coil (optional) emperature sensor for EEV 4 Check valve (for D-0 only) High pressure transducer (HP) 9 Minimum pressure switch 0 Chilled water coil Chilled water -way valve Inlet water sensor Manual bleed valve E - 4 Liebert HPM - Digital

56 Refrigeration circuits - EEV Fig.. Liebert HPM D... U/O H ONLY WIH REHEAING COIL OPION FG (EERNAL FOR D-0) (ONLY FOR D-0) COOLING WAER INLE COOLING WAER OULE WAER OULE 4 WAER INLE Compressor Crankcase heater High pressure switch (HP) 4 Water cooled condenser Liquid receiver Access valve Safety valve 8 Filter dryer 9 Sight glass 0 Electronic expansion valve (EEV) Pressure transducer condensing regulation Check valve Shut-off valve 4 Reheating solenoid valve (optional) Evaporator Low pressure switch (LP) 8 Pressure transducer for electronic expansion valve 0 Capacity mod. solenoid valve (ext. for D-0) Shut-off solenoid valve Reheating coil (optional) emperature sensor for EEV 4 Check valve (for D-0 only) Condensing regulation water valve 9 Minimum pressure switch 0 Chilled water coil Chilled water -way valve Inlet water thermostat Manual bleed valve Liebert HPM - Digital E -

57 Refrigeration circuits - EEV Fig.. Liebert HPM D4... U/O A ( x EEV) ONLY WIH REHEAING COIL OPION RIGH SIDE 4 LEF SIDE (EERNAL FOR D4-4) 9 FG FG (ONLY FOR D4-4) 4 SUPPLY LIMI SUPPLY LIMI SUPPLY LIMI 4 4 CONDENSING UNI CONDENSING UNI Compressor Crankcase heater High pressure switch (HP) 4 Air cooled condenser Liquid receiver Access valve Safety valve 8 Filter dryer 9 Sight glass 0 Electronic expansion valve (EEV) Check valve Shut-off valve 4 Hot gas solenoid valve (optional) Evaporator Low pressure switch (LP) 8 Pressure transducer for electronic expansion valve 0 Capacity mod. solenoid valve (external for D4-4) Shut-off solenoid valve Reheating coil (optional) hermostat for electronic expansion valve 4 Check valve (for D4-4 only) High pressure transducer (HP) E - Liebert HPM - Digital

58 Refrigeration circuits - EEV Fig.. Liebert HPM D4... U/O W ( x EEV) ONLY WIH REHEAING COIL OPION RIGH SIDE 4 LEF SIDE (EERNAL FOR D4-4) 0 9 FG FG (ONLY FOR D4-4) 4 WAER OULE 4 4 WAER INLE Compressor Crankcase heater High pressure switch (HP) 4 Water cooled condenser Liquid receiver Access valve Safety valve 8 Filter dryer 9 Sight glass 0 Electronic expansion valve (EEV) Pressure transducer condensing regulation Check valve Shut-off valve 4 Reheating solenoid valve (optional) Evaporator Low pressure switch (LP) 8 Pressure transducer for electronic expansion valve 0 Capacity mod. solenoid valve (external for D4-4) Shut-off solenoid valve Reheating coil (optional) emperature sensor for EEV 4 Check valve (for D4-4 only) Condensing regulation water valve Head pressure control valve Liebert HPM - Digital E -

59 Refrigeration circuits - EEV Fig. 8. Liebert HPM D4...0 U/O F ( x EEV) ONLY WIH REHEAING COIL OPION RIGH SIDE 4 LEF SIDE P 0 0 (EERNAL FOR D4-4) FG FG (ONLY FOR D4-4) 4 4 WAER INLE WAER OULE Compressor Crankcase heater High pressure switch (HP) 4 Water cooled condenser Liquid receiver Access valve Safety valve 8 Filter dryer 9 Sight glass 0 Electronic expansion valve (EEV) Pressure transducer condensing regulation Check valve Shut-off valve 4 Reheating solenoid valve (optional) Evaporator Low pressure switch (LP) 8 Pressure transducer for electronic expansion valve 0 Capacity mod. solenoid valve (external for D4-4) Shut-off solenoid valve Reheating coil (optional) emperature sensor for EEV 4 Check valve (for D4-4 only) Condensing regulation water valve Head pressure control valve 9 Minimum pressure switch 0 Chilled water coil Inlet water thermostat Manual bleed valve 4 Chilled water -way valve Safety thermostat Hot gas injection valve (antifreeze) Hot gas injector E - 8 Liebert HPM - Digital

60 Refrigeration circuits - EEV Fig. 9. Liebert HPM D4...0 U/O D ( x EEV) ONLY WIH REHEAING COIL OPION RIGH SIDE 4 LEF SIDE P 0 0 (EERNAL FOR D4-4) 0 SUPPLY LIMI 9 FG FG SUPPLY LIMI (ONLY FOR D4-4) SUPPLY LIMI COOLING WAER INLE COOLING WAER OULE 4 4 CONDENSING UNI CONDENSING UNI Compressor Crankcase heater High pressure switch (HP) 4 Air cooled condenser Liquid receiver Access valve Safety valve 8 Filter dryer 9 Sight glass 0 Electronic expansion valve (EEV) - Check valve Shut-off valve 4 Reheating solenoid valve (optional) Evaporator Low pressure switch (LP) 8 Pressure transducer for electronic expansion valve 0 Capacity mod. solenoid valve (external for D4-4) Shut-off solenoid valve Reheating coil (optional) emperature sensor for EEV 4 Check valve (for D4-4 only) Condensing regulation water valve 9 Minimum pressure switch 0 Chilled water coil Chilled water -way valve Inlet water thermostat Manual bleed valve Safety thermostat Hot gas injection valve (antifreeze) Hot gas injector Liebert HPM - Digital E - 9

61 Refrigeration circuits - EEV Fig. 0. Liebert HPM D4...0 U/O H ( x EEV) ONLY WIH REHEAING COIL OPION RIGH SIDE 4 LEF SIDE P 0 0 (EERNAL FOR D4-4) 0 9 FG FG (ONLY FOR D4-4) 4 COOLING WAER INLE COOLING WAER OULE WAER OULE 4 4 WAER INLE Compressor Crankcase heater High pressure switch (HP) 4 Water cooled condenser Liquid receiver Access valve Safety valve 8 Filter dryer 9 Sight glass 0 Electronic expansion valve (EEV) Pressure transducer condensing regulation Check valve Shut-off valve 4 Reheating solenoid valve (optional) Evaporator Low pressure switch (LP) 8 Pressure transducer for electronic expansion valve 0 Capacity mod. solenoid valve (external for D4-4) Shut-off solenoid valve Reheating coil (optional) emperature sensor for EEV 4 Check valve (for D4-4 only) High pressure transducer (HP) Head pressure control valve 9 Minimum pressure switch 0 Chilled water coil Chilled water -way valve Inlet water thermostat Manual bleed valve Safety thermostat Hot gas injection valve (antifreeze) Hot gas injector E - 0 Liebert HPM - Digital

62 Refrigeration circuits - V Refrigeration circuits - V Fig.. Liebert HPM D... U/O A ONLY WIH REHEAING COIL OPION 4 0 FG (ONLY FOR D--0) SUPPLY LIMI SUPPLY LIMI 0 (EERNAL FOR D--0) 4 CONDENSING UNI Compressor Crankcase heater High pressure switch (HP) 4 Air cooled condenser Liquid receiver Access valve Safety valve 8 Filter dryer 9 Sight glass 0 hermostatic expansion valve (V) Check valve Shut-off valve 4 Reheating solenoid valve (optional) Evaporator Low pressure switch (LP) 0 Capacity mod. solenoid valve (ext. for D--0) Shut-off solenoid valve Reheating coil (optional) 4 Check valve (for D--0 only) Pressure transducer for HP Liebert HPM - Digital E -

63 Refrigeration circuits - V Fig.. Liebert HPM D... U/O W ONLY WIH REHEAING COIL OPION 4 0 FG (ONLY FOR D--0) 0 (EERNAL FOR D--0) (ONLY FOR D--0) WAER OULE AB A B 4 WAER INLE Compressor Crankcase heater High pressure switch (HP) 4 Water cooled condenser Liquid receiver Access valve (for D--0 only) Safety valve 8 Filter dryer 9 Sight glass 0 hermostatic expansion valve (V) Pressure transducer condensing regulation Check valve Shut-off valve 4 Reheating solenoid valve (optional) Evaporator Low pressure switch (LP) 0 Capacity mod. solenoid valve (ext. for D--0) Shut-off solenoid valve Reheating coil (optional) 4 Check valve (for D--0 only) Condensing regulation water valve E - Liebert HPM - Digital

64 Refrigeration circuits - V Fig.. Liebert HPM D... U/O F ONLY WIH REHEAING COIL OPION FG (ONLY FOR D-0) 0 (EERNAL FOR D-0) WAER OULE 4 WAER INLE Compressor Crankcase heater High pressure switch (HP) 4 Water cooled condenser Liquid receiver Access valve Safety valve 8 Filter dryer 9 Sight glass 0 hermostatic expansion valve (V) Pressure transducer condensing regulation Check valve Shut-off valve 4 Reheating solenoid valve (optional) Evaporator Low pressure switch (LP) 0 Capacity mod. solenoid valve (ext. for D-0) Shut-off solenoid valve Reheating coil (optional) 4 Check valve (for D-0 only) Condensing regulation water valve 9 Minimum pressure switch 0 Chilled water coil Inlet water thermostat Manual bleed valve 4 Chilled water -way valve Liebert HPM - Digital E -

65 Refrigeration circuits - V Fig. 4. Liebert HPM D... U/O D ONLY WIH REHEAING COIL OPION FG (ONLY FOR D-0) SUPPLY LIMI 0 (EERNAL FOR D-0) SUPPLY LIMI COOLING WAER INLE COOLING WAER OULE 4 CONDENSING UNI Compressor Crankcase heater High pressure switch (HP) 4 Air cooled condenser Liquid receiver Access valve Safety valve 8 Filter dryer 9 Sight glass 0 hermostatic expansion valve (V) - Check valve Shut-off valve 4 Reheating solenoid valve (optional) Evaporator Low pressure switch (LP) 0 Capacity mod. solenoid valve (ext. for D-0) Shut-off solenoid valve Reheating coil (optional) 4 Check valve (for D-0 only) High pressure transducer (HP) 9 Minimum pressure switch 0 Chilled water coil Chilled water -way valve Inlet water sensor Manual bleed valve E - 4 Liebert HPM - Digital

66 Refrigeration circuits - V Fig.. Liebert HPM D... U/O H ONLY WIH REHEAING COIL OPION FG (EERNAL FOR D-0) (ONLY FOR D-0) COOLING WAER INLE COOLING WAER OULE WAER OULE WAER INLE 4 Compressor Crankcase heater High pressure switch (HP) 4 Water cooled condenser Liquid receiver Access valve Safety valve 8 Filter dryer 9 Sight glass 0 hermostatic expansion valve (V) Pressure transducer condensing regulation Check valve Shut-off valve 4 Reheating solenoid valve (optional) Evaporator Low pressure switch (LP) 0 Capacity mod. solenoid valve (ext. for D-0) Shut-off solenoid valve Reheating coil (optional) 4 Check valve (for D-0 only) Condensing regulation water valve 9 Minimum pressure switch 0 Chilled water coil Chilled water -way valve Inlet water thermostat Manual bleed valve Liebert HPM - Digital E -

67 Refrigeration circuits - V Fig.. Liebert HPM D4... U/O A ( x V) ONLY WIH REHEAING COIL OPION RIGH SIDE 4 LEF SIDE (EERNAL FOR D4-4) 9 FG FG (ONLY FOR D4-4) 4 SUPPLY LIMI SUPPLY LIMI SUPPLY LIMI 4 4 CONDENSING UNI CONDENSING UNI Compressor Crankcase heater High pressure switch (HP) 4 Air cooled condenser Liquid receiver Access valve Safety valve 8 Filter dryer 9 Sight glass Check valve Shut-off valve 4 Reheating solenoid valve (optional) Evaporator Low pressure switch (LP) 0 Capacity mod. solenoid valve (external for D4-4) Shut-off solenoid valve Reheating coil (optional) 4 Check valve (for D4-4 only) High pressure transducer (HP) 8 hermostatic expansion valve (V) E - Liebert HPM - Digital

68 Refrigeration circuits - V Fig.. Liebert HPM D4... U/O W ( x V) ONLY WIH REHEAING COIL OPION RIGH SIDE 4 LEF SIDE 8 8 (EERNAL FOR D4-4) 0 9 FG FG (ONLY FOR D4-4) 4 WAER OULE 4 WAER INLE 4 Compressor Crankcase heater High pressure switch (HP) 4 Water cooled condenser Liquid receiver Access valve Safety valve 8 Filter dryer 9 Sight glass Pressure transducer condensing regulation Check valve Shut-off valve 4 Reheating solenoid valve (optional) Evaporator Low pressure switch (LP) 0 Capacity mod. solenoid valve (external for D4-4) Shut-off solenoid valve Reheating coil (optional) 4 Check valve (for D4-4 only) Condensing regulation water valve Head pressure control valve 8 hermostatic expansion valve (V) Liebert HPM - Digital E -

69 Refrigeration circuits - V Fig. 8. Liebert HPM D4...0 U/O F ( x V) ONLY WIH REHEAING COIL OPION RIGH SIDE 4 LEF SIDE 0 9 P 8 8 (EERNAL FOR D4-4) FG FG (ONLY FOR D4-4) 4 4 WAER INLE WAER OULE Compressor Crankcase heater High pressure switch (HP) 4 Water cooled condenser Liquid receiver Access valve Safety valve 8 Filter dryer 9 Sight glass Pressure transducer condensing regulation Check valve Shut-off valve 4 Reheating solenoid valve (optional) Evaporator Low pressure switch (LP) 0 Capacity mod. solenoid valve (external for D4-4) Shut-off solenoid valve Reheating coil (optional) 4 Check valve (for D4-4 only) Condensing regulation water valve Head pressure control valve 8 hermostatic expansion valve (V) 9 Minimum pressure switch 0 Chilled water coil Inlet water thermostat Manual bleed valve 4 Chilled water -way valve Safety thermostat Hot gas injection valve (antifreeze) Hot gas injector E - 8 Liebert HPM - Digital

70 Refrigeration circuits - V Fig. 9. Liebert HPM D4...0 U/O D ( x V) ONLY WIH REHEAING COIL OPION RIGH SIDE 4 LEF SIDE 0 9 P 8 8 (EERNAL FOR D4-4) 0 SUPPLY LIMI 9 FG FG SUPPLY LIMI (ONLY FOR D4-4) SUPPLY LIMI COOLING WAER INLE COOLING WAER OULE 4 4 CONDENSING UNI CONDENSING UNI Compressor Crankcase heater High pressure switch (HP) 4 Air cooled condenser Liquid receiver Access valve Safety valve 8 Filter dryer 9 Sight glass - Check valve Shut-off valve 4 Reheating solenoid valve (optional) Evaporator Low pressure switch (LP) 0 Capacity mod. solenoid valve (external for D4-4) Shut-off solenoid valve Reheating coil (optional) 4 Check valve (for D4-4 only) High pressure transducer (HP) 8 hermostatic expansion valve (V) 9 Minimum pressure switch 0 Chilled water coil Chilled water -way valve Inlet water thermostat Manual bleed valve Safety thermostat Hot gas injection valve (antifreeze) Hot gas injector Liebert HPM - Digital E - 9

71 Refrigeration circuits - V Fig. 0. Liebert HPM D4...0 U/O H ( x V) ONLY WIH REHEAING COIL OPION RIGH SIDE 4 LEF SIDE 0 9 P 8 8 (EERNAL FOR D4-4) 0 9 FG FG (ONLY FOR D4-4) 4 COOLING WAER INLE COOLING WAER OULE WAER INLE 4 WAER OULE 4 Compressor Crankcase heater High pressure switch (HP) 4 Water cooled condenser Liquid receiver Access valve Safety valve 8 Filter dryer 9 Sight glass Pressure transducer condensing regulation Check valve Shut-off valve 4 Reheating solenoid valve (optional) Evaporator Low pressure switch (LP) 0 Capacity mod. solenoid valve (external for D4-4) Shut-off solenoid valve Reheating coil (optional) 4 Check valve (for D4-4 only) Condensing regulation water valve Head pressure control valve 8 hermostatic expansion valve (V) 9 Minimum pressure switch 0 Chilled water coil Chilled water -way valve Inlet water thermostat Manual bleed valve Safety thermostat Hot gas injection valve (antifreeze) Hot gas injector E - 0 Liebert HPM - Digital

72 Hot water circuit Fig.. Hot water reheating coil - optional 4 SUPPLY LIMI SUPPLY LIMI HO WAER OULE HO WAER INE Hot water coil 4 Hot water - way valve Optional components F - Liebert HPM - Digital

73 Fabbricante--- Manufacturer--- Hersteller--- Fabricant--- Fabricante Fabricante --- illverkare --- Fabrikant --- Valmistaja --- Produsent Fabrikant--- Κατασκεναστhζ--- Producent Emerson Network Power S.r.l. --- Zona Industriale ognana ViaLeonardodaVinci,/8---08PiovediSacco---Padova(Italy) Il Fabbricante dichiara che questo prodotto è conforme alle direttive Europee: he Manufacturer hereby declares that this product conforms to the European Union directives: Der Hersteller erklärt hiermit, dass dieses Produkt den Anforderungen der Europäischen Richtlinien gerecht wird: Le Fabricant déclare que ce produit est conforme aux directives Européennes: El Fabricante declara que este producto es conforme a las directivas Europeas: O Fabricante declara que este produto está em conformidade com as directivas Europeias: illverkare försäkrar härmed att denna produkt överensstämmer med Europeiska Uniones direktiv: De Fabrikant verklaart dat dit produkt conform de Europese richtlijnen is: Since the Liebert HIROSSVaimistaja Companyvakuuttaa has a policy täten, of continuous että tämä tuote täyättää seuraavien EU--- direktiivien vaatimukset: product improvement, it reserves Produsent theerklærer right to change herved design at detteand produktet er i samsvar med EU--- direktiver: specifications without previous notice. Fabrikant erklærer herved, at dette produkt opfylder kravene i EU direktiverne: ΟΚατασ ευαστήςδhλώνει τιτoπα νπ oϊ νείναι ατασ ευασμένoα μφwναμετιςoδhγίεςτhςε.ε.: Printed in Italy by Liebert HIROSS S.p A. Issued by.d.service 00/4/EC; 004/08/EC; 00/9/EC; 9//EC