CWP. Cooling Only Version (CO) Condenserless Version (RC) Heat Pump Version (HP) Models 02 to 35. Engineering Data Manual. Water Cooled Water Chillers

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1 Engineering Data Manual Water Cooled Water Chillers Cooling Only Version () Condenserless Version () Heat Pump Version () Models 02 to 35 8 to to 164 N IRWELL GROUP MPNY

2 Specifications General The water cooled water chillers are designed to offer 13 sizes for all small and medium capacity residential, commercial and industrial facilities. With the use of plate type heat exchangers, the chillers have an extremely compact design, permitting to obtain a very small foot-print. The unit is fully encased with galvanised steel panels finished in baked paint coloured RL ll chillers are designed to be located inside a plant room. Their installation is facilitated by water connections located at the rear side of the machine. ll of these 13 sizes are available in three versions : 1) - : "cooling only" chillers require a cooling tower or dry cooler for heat rejection. 2) - : "condenserless" chillers require a remote air cooled condenser for heat rejection. 3) - : "water-to-water reverse cycle" heat pumps providing the leaving hot water temperatures up to 50 C (heating mode), useful for sanitary hot water, low temperature heating applications, etc. ll units are completely assembled with all interconnecting refrigerant piping and internal wiring ready for field installation. fter assembly, a full factory run test is performed with water flowing through the evaporator and condenser to verify that each refrigerant circuit operates correctly. They are shipped with a full refrigerant and oil charge (except - which is shipped with nitrogen charge). Compressors Compressors are of hermetic Scroll, with a gas cooled motor, crankcase heater (except sizes 02 to 09) and internal motor protection. Sizes 02 to 21 have one compressor, whereas sizes 25 to 35 have two compressors. ll compressors are mounted on rubber anti-vibration pads to minimize noise and vibration transmissions. Evaporator Evaporator is of direct expansion type, constituted from stainless steel brazed plate type heat exchanger. Evaporator is wrapped with an electric resistance heater cable and thermally insulated with closed cell polyurethane foam to provide freeze protection. Condenser (except -) Condenser is of stainless steel brazed plate type heat exchanger. On - models, condenser is wrapped with an electric resistance heater cable and thermally insulated with closed cell polyurethane foam to provide freeze protection. Refrigerant circuit Refrigerant circuit is supplied with thermal expansion valve, filter drier, sight glass with moisture indicator, non-return valves at compressor discharge side (on size 25 to 35 only), solenoïd valve (on - only) and high and low pressure switches. The - models have, in addition, reverse cycle 4-port valve, non-return valves and liquid receiver. The - models have, in addition, liquid receiver. Electrical panel ll electrical equipments necessary for full unit operation are located in a compartment of which the access is accomplished through the front of the unit. ccess panel is held by fixing screws. Electrical panel, in compliance with CE standards, includes main disconnect switch with externally lockable handle, compressor contactors and overload protection, control circuit fuses, evaporator thermostat, electronic temperature controller, high & low pressure switches, anti-freeze thermostat (2 pieces on - models), anti-short cycle time delay, on/off switch and electrical junction block for power and control circuits. Optional features Control circuit transformer (400 V / 230 V), Compressor jacket (for sizes 06 to 35 only), /LP gauges, Hour counter, Water pressure switch (supplied loose), Flow switch (supplied loose), Water filter (supplied loose), Modus protocol kit for MS (supplied loose), acnet protocol kit for MS (supplied loose), VM kit (supplied loose), Condenser pressostatic valves (supplied loose), Water valve In-Out (supplied loose), Remote ON/OFF (supplied loose). Soft starter. Sequencer for up to 4 chiller installation. 2

3 Controls The units are equipped with a microprocessor based controller consisting of electronic board(s) and a user interface with digital display and programming keypad to keep the units under total control. Interfacing panel of the controller The meaning of each key, in the different modes, is summed up in the table below. utton Unit status utton press mode Loading default values Press at power ON Go up a sub-group inside the programming area, until exiting (saving changes to EEPROM) Press once In the event of alarms, mute the buzzer (if present) and deactivate the alarm relay Press once ccess the direct parameters Press for 5 s Select item inside the programming area and display value of direct parameters/confirm the changes to the parameters Press once Program parameters after entering password Press for 5 s Select top item inside the programming area Press once or press and hold Increase value Press once or press and hold Select bottom item inside the programming area Press once or press and hold Decrease value Press once or press and hold Manual alarm reset Press for 5 s Immediatly reset the hour counter (inside the programming area) Press for 5 s Meaning Symbol Colour With LED ON With LED flashing Reference refrigerant circuit 1;2 mber Compressor 1 and/or 2 ON Start up request 1 3;4 mber Compressor 3 and/or 4 ON Start up request 2 mber t least one compressor ON mber Pump/air outlet fan ON 1/2 Start up request mber Condenser fan ON mber Defrost active 1/2 Defrost request mber Heater ON Red 1/2 1/2 1/2 larm active 1/2 mber Heat pump mode (P6=0) Heat pump mpde request (P6=0) 1/2 mber Chiller mode (P6=0) Chiller mode request (P6=0) 1/2 3

4 Refrigerant Flow Diagrams - 02 to 21 VERSION P 1 P 1. Compressor 2 2. Safety valve (from size 06) 3. Condenser H H20 4. Drier filter 5. Sight glass 6. Thermostatic valve 7. Evaporator VERSION P 1 P 1. Compressor 2. Safety valve (from size 06) Globe valve 4. Liquid receiver 9 H20 5. Solenoid valve 6. Drier filter 7. Sight glass 8. Thermostatic valve Evaporator VERSION 3 P 1 H2O 4 2 P 9 H2O 1. Compressor 2. Safety valve (from size 06) 3. 4-way valve 4. Heat exchanger 5. Liquid receiver 6. Drier filter 7. Sight glass 8. Thermostatic valve 9. Evaporator LEGEND P1. High pressure switch P P P2. Low pressure switch P3. Tapping point P1 P2 P3 P4 P4. Check valve 4

5 Refrigerant Flow Diagrams - 25 to 35 VERSION P 1 P 1. Compressors 2 2. Safety valve 3. Condenser 4. Drier filter H H20 5. Sight glass 6. Thermostatic valve 7. Evaporator VERSION P 1 P 1. Compressors 2. Safety valve Globe valve 4. Liquid receiver 9 H20 5. Solenoid valve 6. Drier filter 7. Sight glass 8. Thermostatic valve Evaporator VERSION 3 P 1 2 P 1. Compressors H H20 2. Safety valve 3. 4-way valve 4. Heat exchanger 5. Liquid receiver 6. Drier filter 7. Sight glass 8. Thermostatic valve 9. Evaporator LEGEND P1. High pressure switch P P P2. Low pressure switch P3. Tapping point P1 P2 P3 P4 P4. Check valve 5

6 Operating Limits Minimum Maximum Evaporator water leaving temperature (with glycol/without glycol) -5/6 15 Evaporator water T 4 6 Condenser leaving water temperature Condenser water T Condenser water temperature ( C) WTER + GLYL WTER Evaporator water temperature ( C) pplication djustment Factors Fouling Factors Fouling factors m 2. C/ Cooling capacity Correction factors Glycol Factors % glycol by weight Freezing point ( C) Cooling capacity Water flow rate Water pressure drop

7 Technical Data Models Nominal cooling capacity (1) Nominal power (1) Number of refrigerant circuit Refrigerant charge HFC 407C kg Compressor Type / Number Scroll / 1 Scroll / 1 Scroll / 1 Scroll / 1 Scroll / 1 Scroll / 1 Scroll / 1 Scroll / 1 No of capacity reduction steps Evaporator Type Plate Plate Plate Plate Plate Plate Plate Plate Number / Water volume litres 1 / / / / / / / / 2.8 Inlet water connection (female gas threaded) 1"1/4 1"1/4 1"1/4 1"1/4 1"1/4 1"1/4 1"1/4 1"1/4 Outlet water connection (female gas threaded) 1"1/4 1"1/4 1"1/4 1"1/4 1"1/4 1"1/4 1"1/4 1"1/4 Condenser Type Plate Plate Plate Plate Plate Plate Plate Plate Number / Water volume litres 1 / / / / / / / / 2.8 Inlet water connection (female gas threaded) 1"1/4 1"1/4 1"1/4 1"1/4 1"1/4 1"1/4 1"1/4 1"1/4 Outlet water connection (female gas threaded) 1"1/4 1"1/4 1"1/4 1"1/4 1"1/4 1"1/4 1"1/4 1"1/4 Dimensions and weight Length mm Width mm Height mm Shipping weight kg Operating weight kg (1) Data based on chilled water temperatures of 12/7 C and condenser water temperatures of 30/35 C. - Models Nominal cooling capacity (1) Nominal power (1) Number of refrigerant circuit Refrigerant charge HFC 407C kg MPRESSORs Type / Number Scroll / 1 Scroll / 1 Scroll / 2 Scroll / 2 Scroll / 2 N of capacity steps EVPORTOR Type Plate Plate Plate Plate Plate Number / Water volume litres 1 / / / / / 10.9 Inlet water connection (female gas threaded) 1"1/4 1"1/4 2" 2" 2" Outlet water connection (female gas threaded) 1"1/4 1"1/4 2" 2" 2" NDENSER Type Plate Plate Plate Plate Plate Number / Water volume litres 1/4.4 1/5.3 1/6.9 1/8.6 1/10.9 Inlet water connection (female gas threaded) 1"1/4 1"1/4 2" 2" 2" Outlet water connection (female gas threaded) 1"1/4 1"1/4 2" 2" 2" DIMENSIONS ND WEIGHT Length mm Height mm Width mm Shipping weight kg Operating weight kg (1) Data based on chilled water temperatures of 12/7 C and condenser water temperatures of 30/35 C. 7

8 Technical Data Models Nominal cooling capacity (1) Nominal power (1) Nominal heating capacity (2) Nominal power (2) Number of refrigerant circuit Refrigerant charge HFC 407C kg Compressor Type / Number Scroll / 1 Scroll / 1 Scroll / 1 Scroll / 1 Scroll / 1 Scroll / 1 Scroll / 1 Scroll / 1 No of capacity reduction steps Evaporator Type Plate Plate Plate Plate Plate Plate Plate Plate Number / Water volume litres 1 / / / / / / / / 2.8 Inlet water connection (female gas threaded) 1"1/4 1"1/4 1"1/4 1"1/4 1"1/4 1"1/4 1"1/4 1"1/4 Outlet water connection (female gas threaded) 1"1/4 1"1/4 1"1/4 1"1/4 1"1/4 1"1/4 1"1/4 1"1/4 Condenser Type Plate Plate Plate Plate Plate Plate Plate Plate Number / Water volume litres 1 / / / / / / / / 2.8 Inlet water connection (female gas threaded) 1"1/4 1"1/4 1"1/4 1"1/4 1"1/4 1"1/4 1"1/4 1"1/4 Outlet water connection (female gas threaded) 1"1/4 1"1/4 1"1/4 1"1/4 1"1/4 1"1/4 1"1/4 1"1/4 Dimensions and weight Length mm Width mm Height mm Shipping weight kg Operating weight kg (1) Data based on chilled water temperatures of 12/7 C and condenser water temperatures of 30/35 C. (2) Data based on chilled water temperatures of 12/7 C and condenser water temperatures of 40/45 C. - Models Nominal cooling capacity (1) Nominal power (Cooling) (1) Nominal heating capacity (2) Nominal power (Heating) (2) Number of refrigerant circuit Refrigerant charge HFC 407C kg MPRESSOR Type / Number Scroll / 1 Scroll / 1 Scroll / 2 Scroll / 2 Scroll / 2 N of capacity steps EVPORTOR Type Plate Plate Plate Plate Plate Number / Water volume litres 1 / / / / / 10.9 Inlet water connection (female gas threaded) 1"1/4 1"1/4 2" 2" 2" Outlet water connection (female gas threaded) 1"1/4 1"1/4 2" 2" 2" NDENSER Type Plate Plate Plate Plate Plate Number / Water volume litres 1 / / / / / 10.9 Inlet water connection (female gas threaded) 1"1/4 1"1/4 2" 2" 2" Outlet water connection (female gas threaded) 1"1/4 1"1/4 2" 2" 2" DIMENSIONS ND WEIGHT Length mm Height mm Width mm Shipping weight kg Operating weight kg (1) Data based on chilled water temperatures of 12/7 C and condenser water temperatures of 30/35 C. (2) Data based on chilled water temperatures of 12/7 C and condenser water temperatures of 40/45 C. 8

9 Technical Data Models Nominal cooling capacity (1) Nominal power (1) Number of refrigerant circuit Compressor Type / Number Scroll / 1 Scroll / 1 Scroll / 1 Scroll / 1 Scroll / 1 Scroll / 1 Scroll / 1 Scroll / 1 No of capacity reduction steps Evaporator Type Plate Plate Plate Plate Plate Plate Plate Plate Number / Water volume dm 3 1 / / / / / / / / 2.8 Inlet water connection (female gas threaded) 1"1/4 1"1/4 1"1/4 1"1/4 1"1/4 1"1/4 1"1/4 1"1/4 Outlet water connection (female gas threaded) 1"1/4 1"1/4 1"1/4 1"1/4 1"1/4 1"1/4 1"1/4 1"1/4 Refrigerant connections Liquid line 3/8" 1/2" 1/2" 1/2" 1/2" 5/8" 5/8" 5/8" Discharge line 5/8" 5/8" 5/8" 5/8" 7/8" 7/8" 7/8" 1"1/8 Dimensions and weight Length mm Width mm Height mm Shipping weight kg (1) Data based on chilled water temperatures of 12/7 C and condensing temperature of 45 C. - Models Nominal cooling capacity (1) Nominal power (1) Number of refrigerant circuit MPRESSORs Type / Number Scroll / 1 Scroll / 1 Scroll / 2 Scroll / 2 Scroll / 2 N of Capacity Steps EVPORTOR Type Plate Plate Plate Plate Plate Number / Water volume litres 1 / / / / / 10.9 Inlet water connection (female gas threaded) 1"1/4 1"1/4 2" 2" 2" Outlet water connection (female gas threaded) 1"1/4 1"1/4 2" 2" 2" refrigerant connections Liquid line 7/8" 7/8" 7/8" 1"1/8 1"1/8 Discharge line 1"1/8 1"1/8 1"3/8 1"5/8 1"5/8 DIMENSIONS ND WEIGHT Lenght mm Height mm Width mm Shipping weight kg (1) Data based on chilled water temperatures of 12/7 C and condensing temperature of 45 C. 9

10 Electrical Data - HFC 407C - / - / - Models Nominal voltage V(%)/ph/Hz 230/1/ ± 10% / 3 / 50 Max. power Max. current (FL) Max. start-up current (LR) / - / - Models Nominal voltage V(%)/ph/Hz 400 ± 10% / 3 / 50 Max. power Max. current (FL) Max. start-up current (LR) Sound Data FREQUENCY (Hz) Sound d() Not available * * * * * * With jackets, consider this data minus 4 d. Total weighted sound power level given with tolerance of ± 2 d(). 02 * With jackets, consider this data minus 4 d. FREQUENCY (Hz) Sound Pressure at 1 mt* d() 03 Not available ,1 46,8 47,9 46,3 44,8 37,4 25, ,1 49,8 50,9 49,3 47,8 40,4 28, ,1 52,8 53,9 52,3 50,8 43,4 31, ,1 55,8 56,9 55,3 53,8 46,4 34, ,1 58,8 59,9 58,3 56,8 49,4 37,4 63* 21 43,1 58,8 59,9 58,3 56,8 49,4 37,4 63* 25 42,1 57,8 58,9 57,3 55,8 48,4 36,4 62* 30 43,1 58,8 59,9 58,3 56,8 49,4 37,4 63* 35 45,1 60,8 61,9 60,3 58,8 51,4 39,4 65* 10

11 Performance Data - - with HFC 407C Unit size Leav. chilled water temp. ( C) NDENSER LEVING WTER TEMPERTURE ( C) 26 C 33 C 35 C 37 C 39 C 41 C 46 C

12 Performance Data - - with HFC 407C Unit size Leav. chilled water temp. ( C) Heat. NDENSER LEVING WTER TEMPERTURE ( C) 25 C 32 C 35 C 36 C 38 C 40 C 45 C 50 C Heat. Heat. Heat Heat. Heat. Heat. Heat. 12

13 Performance Data - - with HFC 407C Unit size Leav. chilled water temp. ( C) NDENSING TEMPERTURE 36 C 43 C 45 C 47 C 49 C 51 C 56 C 61 C

14 Water Pressure Drops - / - / - models PRESSURE DROPS IN THE EVPORTOR K 10 4 kpa/(m 3 /s) Min. water flow rate l/s Nominal water flow rate l/s Max. water flow rate l/s Min. pressure drops kpa Nominal pressure drops kpa Max. pressure drops kpa / - / - models PRESSURE DROPS IN THE EVPORTOR K 10 4 kpa/(m 3 /s) Min. water flow rate l/s Nominal water flow rate l/s Max. water flow rate l/s Min. pressure drops kpa Nominal pressure drops kpa Max. pressure drops kpa / - models PRESSURE DROPS IN THE NDENSER K 10 4 kpa/(m 3 /s) Min. water flow rate l/s Nominal water flow rate l/s Max. water flow rate l/s Min. pressure drops kpa Nominal pressure drops kpa Max. pressure drops kpa / - models PRESSURE DROPS IN THE NDENSER K 10 4 kpa/(m 3 /s) Min. water flow rate l/s Nominal water flow rate l/s Max. water flow rate l/s Min. pressure drops kpa Nominal pressure drops kpa Max. pressure drops kpa

15 Dimensions - -/- 02 to 21 C C Side view Front view Evaporator inlet 2 Evaporator outlet 3 Condenser inlet 4 Condenser outlet Rear view Unit size C C1 02 to to to Dimensions in mm. Unit size Evaporator inlet 1"1/4 1"1/4 1"1/4 1"1/4 1"1/4 1"1/4 1"1/4 1"1/4 1"1/4 1"1/4 Evaporator outlet 1"1/4 1"1/4 1"1/4 1"1/4 1"1/4 1"1/4 1"1/4 1"1/4 1"1/4 1"1/4 Condenser inlet 1"1/4 1"1/4 1"1/4 1"1/4 1"1/4 1"1/4 1"1/4 1"1/4 1"1/4 1"1/4 Condenser outlet 1"1/4 1"1/4 1"1/4 1"1/4 1"1/4 1"1/4 1"1/4 1"1/4 1"1/4 1"1/4 15

16 Dimensions to 21 C C Side view Front view 1 1 Evaporator inlet 2 Evaporator outlet Discharge line Liquid line Rear view Unit size C C1 02 to to to Dimensions in mm. Unit size Evaporator inlet 1"1/4 1"1/4 1"1/4 1"1/4 1"1/4 1"1/4 1"1/4 1"1/4 1"1/4 1"1/4 Evaporator outlet 1"1/4 1"1/4 1"1/4 1"1/4 1"1/4 1"1/4 1"1/4 1"1/4 1"1/4 1"1/4 Discharge line 5/8" 5/8" 5/8" 5/8" 7/8" 7/8" 7/8" 1"1/8" 1"1/8" 1"1/8" Liquid line 3/8" 1/2" 1/2" 1/2" 1/2" 5/8" 5/8" 5/8" 7/8" 7/8" 16

17 Dimensions - -/- 25 to Front view C Rear view 30 C1 30 Side view 1 Evaporator inlet 2 Evaporator outlet 3 Condenser inlet 4 Condenser outlet Unit size C C1 25 to Dimensions in mm. Unit size Evaporator inlet 2" 2" 2" Evaporator outlet 2" 2" 2" Condenser inlet 2" 2" 2" Condenser outlet 2" 2" 2" 17

18 Dimensions to Front view C Rear view 30 C1 30 Side view 1 Evaporator inlet 2 Evaporator outlet Discharge line Liquid line Unit size C C1 25 to Dimensions in mm. Unit size Evaporator inlet 2" 2" 2" Evaporator outlet 2" 2" 2" Discharge line 1"3/8 1"5/8 1"5/8 Liquid line 7/8" 1"1/8 1"1/8 18

19 Minimum Installation Clearances 600 mm 1000 mm 600 mm Side view 600 mm 600 mm Front view 19

20 IRWELL France SS 1bis, venue du 8 mai 1945 Saint Quentin en Yvelines GUYNURT France Tel. +33 (0) Fax +33 (0) Ref. : EDM -.6G/ Supersedes : EDM -.5G/10.08 s part of our ongoing product improvement programme, our products are subject to change without prior notice. Non contractual photos. N IRWELL GROUP MPNY

CWP-CO / CWP-RC / CWP-HP 02 to 35

CWP-CO / CWP-RC / CWP-HP 02 to 35 Water Cooled Water Chillers Cooling Only, Condenserless and Heat Pump Versions - / - / - 02 to 35 8 to 136 9 to 164 Technical Brochure TM -N.4GB Date : March 2006 Supersedes : TM -N.3GB/05.04 Technical