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CRV - Union Sistemas

1. 30 C 86 F EWT 45 C 113 F Cond Temp 40 C 104 F EWT 55 C 131 F Cond Temp 50 Hz CRO35RW CRO20RW CRO35RW CRO20RW 40 C DB 104 F 20 RH Total kW BTU H 38 7 132083 24 3 82936 35 9 122527 21 8 74403 Sensible kW BTU H 38 7 132083 24 3 82936 35 9 122527 21 8 74403 Unit Power Imput kW BTU H 9 59 32731 6 12 20888 11 72 40000 7 23 24676 Heat rejection kW BTU H 48 3 164848 30 4 103755 47 6 162459 29 2 99660 Flow Rate Us GPM 1 418 22 48 0 893 14 15 1 289 20 43 0 787 12 47 Pressure Drop kPa ft H20 136 45 50 98 32 79 111 37 14 76 25 43 Supply Air Temperature C F 18 1 64 6 21 8 71 2 19 7 67 5 21 9 71 4 37 C DB 98 6 F 24 RH Total kW BTU H 36 8 125598 23 1 78840 34 116042 21 4 73038 Sensible kW BTU H 36 8 125598 23 1 78840 34 116042 21 4 73038 Unit Power Imput kW BTU H 9 59 32731 6 1 20819 11 75 40103 7 4 25256 Heat rejection kW BTU H 46 4 158363 29 2 99660 45 8 156315 28 8 98294 Flow Rate Us GPM 1 35 21 40 0 849 13 46 1 229 19 48 0 774 12 27 Pressure Drop kPa ft H20 123 41 15 89 29 78 101 33 79 73 24 42 Supply Air Temperature C F 16 4 61 5 19 8 67 6 18 64 4 21 1 70 0 35 C DB 95 F 26 RH Total kW BTU H 36 9 125940 22 3 76110 32 8 111946 20 6 70308 Sensible kW BTU H 36 3 123892 22 3 76110 32 8 111946 20 6 70308 Unit Power Imput kW BTU H 9 58 32697 6 08 20751 11 76 40137 7 38 25188 Heat rejection kW BTU H 45 4 154950 28 4 96929 44 5 151879 28 955
2. CONNECTIONS 83 440 3 1 4 17 5 16 242 9 1 2 2 11 16 REAR VIEW D S 28 1 1 8 247 5 324 5 _ 9 3 4 12 3 4 i 225 5 3 1 16 25 8 7 8 N o Oo ox MI K 59 CD or DP u cl ECHV pas ox O zl EC LV S to S 95 N n c T K 56 4 55 5 2 3 16 2 1 8 2316 BOTTOM CONNECTIONS 83 possible with raised floor 3 1 4 600 L 23 5 8 Unit Connection CRO20RA 50Hz CRO35RA 50Hz CRO20RA 60Hz CRO35RA 60Hz DESEN OD 12 1 2 CU OD 16 5 8 CU OD 12 7 1 2 CU OD 15 9 5 8 CU IL Refrigerant liquid line inlet SWEAT SWEAT SWEAT SWEAT p OD 16 5 8 CU OD 22 7 8 CU OD 15 9 5 8 CU OD 22 2 7 8 CU OG Refrigerant gas line outlet SWEAT SWEAT SWEAT SWEAT Condensate drain CD ATTENTION With pump CD is ID 20 3 4 1 MPT connected with HD See DP Was 1 2 GAS F for top connections 1 2 FPT for top connections HE FRERES 3 4 GAS F for bottom connections 3 4 FTP for bottom connections Humidifier drain HD ATTENTION With pump CD is ID 22 7 8 1 MPT connected with HD See DP DP Pump drain 1 2 GAS F 1 2 FPT EC HV
3. The nominal heat rejection capacities refer to the following operative conditions e refrigerant R410A e temperature differences 15 K e T condensation dew point Toutdoor e liquid sub cooling 3K e height of the installation 0 m above the sea level e for different conditions refer to NewHirating program e clean exchange surfaces The levels of sound pressure here included are measured in the same operative conditions and are referred to 5 m far from the unit at 1 5 m in height in free field conditions All Liebert HCR air remote condensers are e CE marked e Conform to the following European Directives Liebert CRV PD 273529 10 09 2010 Heat Rejections A version Machine Directive 98 37 CE PED 97 23 CEE LVD 2006 95 EC EMC 2004 108 EC EN61000 6 2 EN 61000 6 3 e Frame is made up of a sturdy aluminium structure e Units are factory equipped with electric board 230V 1ph 50Hz T with main disconnector IP65 and with stepless fan speed controller The electrical board is designed to allow a local or remote switch from high to low fan speed set point and viceversa by means of terminal contact 70 71 The entire units have IP54 type of protection e Motorized fans are IP54 DIN60529 protection class F Maintenance free ball bearings e Most important technical data are gathered in Tab 5b e Heat rejection capacity have been measured according to the norm EN327 Sound power
4. Sse O etete lets jeee ele el e XR xix xx x BEES ES ES EE SIE Se Wire bridge OOOO OIN NINI NI N I tT NA ee ele ele olo iD gt x NI ol 09 Gol H tO Lo 09 02 x KINI OO KIN OJ LO LO o LO LO A LOCO CO CO CO o o o COIN N gt JOIN I I co Liebert CRV PD 273529 10 09 2010 SPRING TERMINALS WKMF 2 5 15 SPRING TERMINALS WKMF 2 5 15 Refrigerant Hydraulic and Electrical Connections 9 1 Electrical field connections descriptions 50 Hz STANDARD ELECTRICAL CONNECTIONS 1 Primary high voltage entrance 2 50 64mm 1 75 44mm 1 375 35mm diameter concentric knockouts located in bottom of box 2 Secondary high voltage entrance 2 50 64mm 1 75 44mm 1 375 35mm diameter concentric knockouts located in top of box 3 Primary low voltage entrance Quantity 3 1 125 28mm diameter knockouts located in bottom of unit 4 Secondary low voltage entrance Quantity 3 1 125 28mm diameter knockouts located in top of box Earth ground Terminal for field supplied earth grounding wire 6 Remote unit shutdown Replace existing jumper between terminals 52 amp 53 with field supplied normally closed switch having a minimum 75VA 24VAC r
5. CONFIGURATION CRO20RA W CRO35RA W CRO40RC Voltage 460 3 60 208 3 60 460 3 60 208 3 60 460 3 60 208 3 60 With Electric Reheat Steam ELA 214 51 0 31 7 62 0 Th 24 9 Generating Humidifier amp WSA 32 4 61 6 38 6 75 4 14 3 31 1 Condensate Pump OPD 40A 80A 50A 100A 15A 35A FLA 23 6 42 8 27 9 53 8 7 9 16 7 With Steam Generating Humidifier amp Condensate Pump WSA 26 7 49 3 32 9 63 1 9 9 20 9 OPD 35A 70A 50A 100A 15A 25A FLA 27 4 51 0 31 7 62 0 11 7 24 9 With Electric Reheat amp Condensate Pump WSA 32 4 61 6 38 6 75 4 14 3 31 1 OPD 40A 80A 50A 100A 15A 35A FLA 26 2 48 7 30 5 59 7 10 5 22 6 With Electric Reheat amp Steam Generating Humidifier WSA 31 2 59 3 37 4 73 1 13 1 28 3 OPD 40A 80A 50A 100A 15A 30A FLA 19 9 34 4 24 2 45 4 4 2 8 3 With Condensate Pump WSA 23 0 40 9 29 2 54 7 4 6 9 1 OPD 30A 60A 45A 90A 15A 15A Without Electric Reheat Steam FLA 19 7 32 1 23 0 43 1 3 0 6 0 Generating Humidifier amp WSA 21 8 38 6 28 0 52 4 3 4 6 8 Condensate Pump OPD 30A 60A 45A 80A 15A 15A FLA Full Load Amps Input Amps WSA Wire Size Amps Minimum Supply Circuit Ampacity OPD Maximum Overcurrent Protective CRO020 CR035 CR040 Voltage 460 3 60 208 3 60 460 3 60 208 3 60 Digital Scroll Compressor RLA 12 5 25 9 20 37 1 LRA 75 164 125 239 Fans RLA 6 2 6 2 3 6 LRA 0 2 0 2 0 2 0 2 Humidifier FLA 3 7 8 4 3 7 8 4 Electric Reheat FLA 7 5 16 6 7 5 16 6 Condensate Pump FLA 1 2 2 3 1
6. R V 2 5 Liebert CRV PD 273529 10 09 2010 Application of Liebert CRV min 0 65 m 2 4 3 Placement in the room 1 Width of Hot Cold aisle Y Nx 0 6 1 2 m Good approach lt 1 2m K Nx Not advised approach 212m A Note Nx Please refer also to Service area dimensions a Enclosure C Liebert CRV PD 273529 10 09 2010 For good air distribution it is recommended to keep width of the cold aisle as small as pos sible for single row server room Otherwise the cold air discharged by Liebert CRV unit is being led far from server suction and hot air may by passed from hot aisle Exceptions where wider cold aisle may be used are applications with CoolFlex Cold Aisle Containment or with two rows facing each other For width of the hot aisle there are no prefer ences there is just minimum requirement needed for enough for service area Application of Liebert CRV 2 Distance between the ends of rows and walls For single row application with one Liebert CRV unit it is not preferred to put the unit at wall because of not proper air paths and possible hot spots at furthest racks unless in combination with CoolFlex cold aisle containment or in application with more Liebert CRV units The best approach is to keep a gap between at least 0 65m or to use more Liebert CRV units Good approach is also having wall at the furthest rack Please refer to the f
7. 10 09 2010 Liebert CRV Liebert CRV PD 273529 provides superior water carryover resistance Two stainless steel condensate drain pans are provided REFRIGERATION SYSTEM Single refrigeration circuit includes a liquid line filter drier an adjustable externally equalized expansion valve and a liquid line solenoid valve COMPRESSOR The compressor is an R 410A scroll type with variable capacity operation from 20 10096 commonly known as a Digital Scroll Compressor solenoid valve shall unload the compressorto provide variable capacity operation The compressor has a suction gas cooled motor vibration isolators internal thermal overloads manual reset high pressure switch RotoLock service valves low pressure and high pressure transducer crankcase heater internal centrifugal oil pump and an operating speed of 3500 RPM 60Hz 2900RPM 50Hz FAN The unit is equipped with two plug fans direct driven centrifugal fans with backward curved blades and Electronically Commutated DC motors commonly referred to as EC plug fans The fan speed is variable and automatically regulated by the iCOM control through all modes of operation Each fan has a dedicated motor and speed controller which provides a level of redundancy The fans push air through the coil and are located on the rear panel of the unit WATER GLYCOL CONDENSER Is an efficient stainless steel brazed plate condenser Waterside threaded connections are provided for convenience Pro
8. iCOM CONTROL SYSTEM The Liebert CRV is controlled by the iCOM Control System The standard user interface is the Large Graphical Display 320x240 pixels backlit which presents system information and allows all parameters to be viewed and adjusted It features push button navigation operational status LEDs and a 3 level password protection system Unit to Unit communication with other Liebert CRVs and two IntelliSlot communication card housings are included as standard 2T RACK TEMPERATURE SENSORS Consist of a vented case with two temperature probes Up to 10 2T housings 20 temperature probes can be connected to a Liebert CRV One 2T housing and both sensor probes are to be attached to a rack the cooling unit is conditioning The sensors provide real time direct feedback to the cooling unit to optimize the amount of cooling and airflow required increasing energy efficiency and ensuring proper rack inlet air temperatures The sensor data can also be reported to remote BMS and monitoring systems The sensor network consists of one CAN wire leaving the cooling unit and connecting to a 2T sensor Each remaining 2T sensor is connected to the previous sensor often referred to as a daisy chain configuration REMOTE SHUTDOWN TERMINAL Provides the customer with a location to remotely shut down the unit COMMON ALARM CONTACT Provides the customer with a set of normally open n o contacts for remote indication of unit alarms CABINET The exterior steel
9. as directed below or the equipment will not operate properly Insert the rack temperature sensor connector in the temperature sensor port at the iCom interface Secure the temperature sensor in front of the warmest heat source in the enclosure Do not secure in front of a blanking panel The sensors must be installed where lack of sufficient cooling air is most likely The optimum position of the rack temperature sensors will vary from installation to installation Servers most likely to have insufficient or inadequately cooled cooling air due to the recirculation of hot air from the hot aisle include Servers positioned at the top of a rack Servers positioned at any height in the last rack at an open end of a row Servers positioned behind flow impairing obstacles such as building elements Servers positioned in a bank of high density racks Servers positioned next to racks with air removal units Servers positioned very far from the equipment Servers positioned very close to the equipment o 9oocop Liebert CRV PD 273529 10 09 2010 2 10 Liebert CRV 3 1 Standard features Air cooled models DX COOLING COIL The evaporator coil has 7 25 ft 0 674 m face area 4 or 5 rows deep It is constructed of copper tubes and hydrophilic coated aluminium fins The hydrophilic coating provides superior water carryover resistance Two stainless steel condensate drain pans are provided REFRIGERATION SYSTEM Single refrigeration circuit i
10. 0 978 15 50 0 606 9 61 1 068 16 93 0 665 10 54 Pressure Drop kPa ft H2O 22 7 36 16 5 35 58 19 40 40 13 38 68 22 75 47 15 72 Supply Air Temperature C F 14 2 57 6 17 9 64 2 14 2 57 6 17 9 64 2 15 4 59 7 18 5 65 3 32 C DB 89 6 F 29 RH Total kW BTU H 35 7 121844 21 9 74745 35 7 121844 21 9 74745 34 3 117066 21 1 72014 Sensible kW BTU H 34 6 118090 21 9 74745 34 6 118090 21 9 74745 34 1 116383 21 1 72014 Unit Power Imput kW BTU H 8 59 29318 5 46 18635 8 59 29318 5 46 18635 9 58 32697 6 06 20683 Heat rejection kW BTU H 44 3 151196 27 4 93516 44 3 151196 27 4 93516 43 8 149489 27 2 92834 Flow Rate I s GPM 0 57 9 03 0 352 5 58 0 937 14 85 0 576 9 13 1 025 16 25 0 633 10 03 Pressure Drop kPa ft H2O 22 7 36 15 5 02 54 18 07 37 12 38 63 21 08 43 14 39 Supply Air Temperature C F 12 9 55 2 16 60 8 12 9 55 2 16 60 8 13 2 55 8 16 6 61 9 30 C DB 86 F 34 RH Total kW BTU H 35 7 121844 21 9 74745 35 7 121844 21 9 74745 33 8 115359 20 9 71332 Sensible kW BTU H 32 3 110240 21 5 73380 32 3 110240 21 5 73380 31 5 107510 20 9 71332 Unit Power Imput kW BTU H 8 59 29318 5 46 18635 8 59 29318 5 46 18635 9 58 32697 6 05 20649 Heat rejection kW BTU H 44 3 151196 27 3 93175 44 3 151196 27 3 93175 43 3 147783 27 92151 Flow Rate l s GPM 0 57 9 03 0 351 5 56 0 935 14 82 0 575 9 11 1 011 16 02 0 627 9 94 Pressure Drop kPa ft H2O 22 7 36 15 5 02 53 17 73 37 12 38 61 20 41 42 14 05 Supply Air Temperature C F 12 3 54 1 14 4
11. 34 3 117066 21 1 72014 Sensible kW BTU H 34 1 116383 21 1 72014 Unit Power Imput kW BTU H 9 58 32697 6 06 20683 Heat rejection kW BTU H 43 88 149762 27 16 92697 Supply Air Temperature C F 13 2 55 8 16 5 61 7 30 C DB 86 F 34 RH Total kW BTU H 33 8 115359 20 5 69967 Sensible kW BTU H 31 5 107510 20 5 69967 Unit Power Imput kW BTU H 9 58 32697 6 04 20615 Heat rejection kW BTU H 43 38 148056 26 54 90581 Supply Air Temperature C F 12 8 55 0 13 8 56 8 28 C DB 82 4 38 RH Total kW BTU H 33 4 113994 20 5 69967 Sensible kW BTU H 29 5 100684 20 3 69284 Unit Power Imput kW BTU H 9 58 32697 6 04 20615 Heat rejection kW BTU H 42 98 146691 26 54 90581 Supply Air Temperature C F 12 53 6 13 4 56 1 28 C DB 82 4 45 RH Total kW BTU H 34 6 118090 21 4 73038 Sensible kW BTU H 27 1 92492 18 6 63482 Unit Power Imput kW BTU H 9 58 32697 6 06 20683 Heat rejection kW BTU H 44 18 150786 27 46 93721 Supply Air Temperature C F 13 1 55 6 14 6 58 3 25 C DB 77 F 45 RH Total kW BTU H 32 3 110240 19 9 67919 Sensible kW BTU H 26 7 91127 18 1 61775 Unit Power Imput kW BTU H 9 58 32697 6 03 20580 Heat rejection kW BTU H 41 88 142936 25 93 88499 Supply Air Temperature C F 10 6 51 1 12 1 53 8 25 C DB 77 F 40 RH Total kW BTU H 31 3 106827 19 3 65871 Sensible kW BTU H 28 1 95905 19 1 65188 Unit Power Imput kW BTU H 9 58 32697 6 02 20546 Heat rejection kW BTU H 40 88 139523 25 32 86
12. 4 93516 45 8 156315 27 4 93516 Supply Air Temperature C F 13 1 55 6 15 2 59 4 13 1 55 6 15 2 59 4 75 F DB 62 5 F WB 23 9 C DB 16 9 C WB 50 RH Liebert CRV PD 273529 10 09 2010 6 11 Specifications Glycol cooled Total kW BTU H 30 6 104438 18 1 61775 30 6 104438 18 1 61775 Sensible kW BTU H 24 4 83277 15 6 53243 24 4 83277 15 6 53243 Flow Rate Us GPM 1 283 20 34 0 756 11 98 1 387 21 98 0 816 12 93 Pressure Drop kPa ft H20 103 34 46 65 21 75 122 40 82 78 26 10 Unit Power Imput kW BTU H 13 11 44744 7 91 26997 13 11 44744 7 91 26997 Heat rejection kW BTU H 43 6 148807 25 9 88397 43 6 148807 25 9 88397 Supply Air Temperature C F 10 8 51 4 12 9 55 2 10 8 51 4 12 9 55 2 75 F DB 61 F WB 23 9 C DB 16 1 C WB 45 RH Total kW BTU H 29 7 101366 17 6 60069 29 7 101366 17 6 60069 Sensible kW BTU H 25 8 88055 16 4 55973 25 8 88055 16 4 55973 Flow Rate Us GPM 1 253 19 86 0 736 11 67 1 353 21 45 0 795 12 60 Pressure Drop kPa ft H20 98 32 79 62 20 74 117 39 14 74 24 76 Unit Power Imput kW BTU H 13 11 44744 7 88 26894 13 11 44744 7 88 26894 Heat rejection kW BTU H 42 7 145735 25 4 86690 42 7 145735 25 4 86690 Supply Air Temperature C F 10 1 50 2 12 2 54 0 10 1 50 2 12 2 54 0 72 F DB 60 1 F WB 22 2 C DB 15 6 C WB 50 RH Total kW BTU H 29 1 99318 17 4 59386 29 1 99318 17 4 59386 Sensi
13. 52560 23 9 81571 15 4 52560 23 2 79182 15 51195 Unit Power Imput kW BTU H 8 58 29284 5 43 18533 8 58 29284 5 43 18533 9 58 32697 6 02 20546 Heat rejection kW BTU H 41 3 140957 25 8 88055 41 3 140957 25 8 88055 40 9 139592 25 4 86690 Flow Rate I s GPM 0 528 8 37 0 329 5 21 0 864 13 69 0 537 8 51 0 944 14 96 0 586 9 29 Pressure Drop kPa ft H20 18 6 02 14 4 68 46 15 39 32 10 71 54 18 07 37 12 38 Supply Air Temperature C F 9 3 48 7 11 1 52 0 9 3 48 7 11 1 52 0 9 7 49 5 11 4 52 5 22 C DB 71 6 F 50 RH Total kW BTU H 31 9 108875 19 8 67577 31 9 108875 19 8 67577 30 5 104097 18 9 64506 Sensible kW BTU H 25 85325 16 3 55632 25 85325 16 3 55632 24 4 83277 15 9 54267 Unit Power Imput kW BTU H 8 58 29284 5 42 18498 8 58 29284 5 42 18498 9 57 32662 6 01 20512 Heat rejection kW BTU H 40 5 138227 25 2 86008 40 5 138227 25 2 86008 40 1 136861 24 9 84984 Flow Rate Ve GPM 0 516 8 18 0 322 5 10 0 843 13 36 0 524 8 31 0 921 14 60 0 572 9 07 Pressure Drop kPa ft H2O 18 6 02 12 4 01 44 14 72 31 10 37 52 17 40 36 12 04 Supply Air Temperature C F 8 7 47 7 10 5 50 9 8 7 47 7 10 5 50 9 9 1 48 4 10 8 51 4 Record the power consumption of the fan at various operating percentages min 100 Cooling capacities are net values All capacities are nominal values actual performance will be 5 NOTE Data rated with Standard MERV 8 G4 filter Some options or combinations of options may result in reduced airflow
14. 57 9 12 3 54 1 14 4 57 9 12 8 55 0 14 6 58 3 28 C DB 82 4 38 RH Total kW BTU H 35 1 119796 21 6 73721 35 1 119796 21 6 73721 33 4 113994 20 4 69625 Sensible kW BTU H 30 3 103414 20 1 68601 30 3 103414 20 1 68601 29 5 100684 19 5 66554 Unit Power Imput kW BTU H 8 59 29318 5 46 18635 8 59 29318 5 46 18635 9 58 32697 6 04 20615 Heat rejection KW BTU H 43 7 149148 27 1 92492 43 7 149148 27 1 92492 43 146759 26 5 90445 Flow Rate l s GPM 0 562 8 91 0 348 5 52 0 922 14 61 0 569 9 02 1 001 15 87 0 614 9 73 Pressure Drop kPa ft H20 20 6 69 15 5 02 53 17 73 36 12 04 61 20 41 40 13 38 Supply Air Temperature C F 11 6 52 9 13 5 56 3 11 6 52 9 13 5 56 3 12 53 6 13 9 57 0 28 C DB 82 4 45 RH Total kW BTU H 36 1 123209 224 76451 36 1 123209 224 76451 34 6 118090 21 4 73038 Sensible kW BTU H 27 8 94881 18 4 62799 27 8 94881 18 4 62799 27 2 92834 18 61434 Unit Power Imput kW BTU H 8 59 29318 5 47 18669 8 59 29318 5 47 18669 9 58 32697 60 6 206828 Heat rejection KW BTU H 44 7 152561 27 9 95223 44 7 152561 27 9 95223 44 2 150855 27 5 93858 Flow Rate l s GPM 0 576 9 13 0 359 5 69 0 947 15 01 0 589 9 34 1 034 16 39 0 641 10 16 Pressure Drop kPa ft H2O 22 7 36 15 5 02 55 18 40 38 12 71 65 21 75 44 14 72 Supply Air Temperature C F 12 8 55 0 14 7 58 5 12 8 55 0 14 7 58 5 13 2 55 8 15 59 0 25 C DB 77 F 45 RH Total kW BTU H 33 7 115018 20 8 70990 33 7 115018 20 8 70990 32 3 110240 19 9 67919 Sensible kW BTU H 27 4 93516 1
15. 7 8 9 10 11 1 125 CR 020 H 3 4 and 5 Digit 1 and 2 Family CR Digit 6 Air Discharge R Air Discharge Horizontal airflow Digit 7 System Type A System Type air cooled W System Type water cooled C System Type Chilled Water Digit 8 Airflow 1 Airflow EC Plug Fan Digit 9 Power Supply D Power Supply 400V 3ph 50Hz N C Power Supply 208V 3ph 60Hz A Power Supply 460V 3ph 60Hz Digit 10 Cooling System 2 Cooling Systems CW with two way Valve 3 Cooling Systems CW with Three Way 7 Cooling Systems DX with digital scroll Single Circuit R410A Digit 11 Humidification 0 Humidification none S Humidification electrode humidifier SN 12 Display Display Small Display 1 T H Sensor Display Small Display 1 Temp Sensor Only Display Large Display 1 T H sensor Display Large Display 1 Temp sensor Only Lee EK Digit 13 Re Heating 0 Re heating none 1 Re heating electric heating 1 Level re 14 AirFilter Air Filter G4 EU4 Air Filter F 5 EU5 Air Filter G4 EU4 Clogged Filter Alarm Air Filter F 5 EU5 Clogged Filter Alarm Air Filter Merv 8 Clogged Filter Alarm Air Filter Merv 11 Clogged Filter Alarm OOHOOWM O Digit 15 Coil 1 Coil Air cooled water cooled two ways water valve 7 Coil water cooled 3 ways water valve H Coil CW Standard coil Liebert CRV PD 273529 10 09 2010 Size Co
16. 92492 Supply Air Temperature C F 9 4 48 9 11 8 53 2 9 4 48 9 11 8 53 2 9 6 49 3 12 53 6 75 F DB 61 F WB 23 9 C DB 16 1 C WB 45 RH Total kW BTU H 35 1 119796 20 9 71332 35 1 119796 20 9 71332 34 3 117066 20 5 69967 Liebert CRV PD 273529 10 09 2010 6 7 Specifications Water cooled Sensible kW BTU H 28 4 96929 18 61434 28 4 96929 18 61434 28 95564 17 8 60751 Flow Rate Ve GPM 0 561 8 89 0 336 5 33 0 871 13 81 0 519 8 23 1 214 19 24 0 719 11 40 Pressure Drop kPa ft H20 20 6 69 14 4 68 47 15 72 30 10 04 88 29 44 55 18 40 Unit Power Imput kW BTU H 9 46 32287 5 83 19898 9 46 32287 5 83 19898 10 01 34164 6 13 20922 Heat rejection kW BTU H 44 5 151879 26 7 91127 44 5 151879 26 7 91127 44 2 150855 26 5 90445 Supply Air Temperature C F 8 7 47 7 11 1 52 0 8 7 47 7 11 1 52 0 8 9 48 0 11 3 52 3 72 F DB 60 1 F WB 22 2 C DB 15 6 C WB 50 RH Total kW BTU H 34 4 117407 20 5 69967 34 4 117407 20 5 69967 33 6 114677 20 68260 Sensible kW BTU H 26 5 90445 16 7 56997 26 5 90445 16 7 56997 26 1 89079 16 5 56315 Flow Rate Ve GPM 0 552 8 75 0 33 5 23 0 855 13 55 0 509 8 07 1 19 18 86 0 704 11 16 Pressure Drop kPa ft H20 20 6 69 14 4 68 46 15 39 29 9 70 84 28 10 52 17 40 Unit Power Imput kW BTU H 9 47 32321 5 81 19830 9 47 32321 5 81 19830 10 01 34164 6 11 20853 Heat rejection kW BTU H 43 8 149489 26 2 89421 43 8 149489 26 2 89421 4
17. Crankcase heater 12 Shut off valve 3 High pressure switch 13 Evaporating coil 4 Air cooled condenser 14 Low pressure trasducer 5 Liquid receiver 15 Capacity modulation solenoid valve 6 Access valve 16 Shut off solenoid valve 7 Safety relief valve 17 High pressure trasducer 8 Filter dryer 18 Vibration absorber 9 Sight glass 19 Cup and fitting sweat joint 10 Thermostatic expansion valve Liebert CRV PD 273529 10 09 2010 10 1 Refrigeration amp Hydraulic Circuits Fig 10b LIEBERT CRV CR020RW CRO35RW on CRO35 only external on CRO20 WATER GLYCOL OUTLET top connections WATER GLYCOL OUTLET bottom connections only with WATER GLYCOL INLET optional top connections 2 way val ve WATER GLYCOL INLET bottom connections POS DESCRIPTION POS DESCRIPTION 1 Compressor 12 Rotalock shut off valve 2 Crankcase heater 13 Evaporating coil 3 High pressure switch 14 Low pressure trasducer 4 Water cooled condenser 15 Capacity modulation solenoid valve 5 Liquid receiver 16 Shut off solenoid valve 6 Access valve 17 Head pressure trasducer 7 Safety relief valve 18 Vibration absorber 8 Filter dryer 19 Head pressure control valve 9 Sight glass 20 Valve fittings 10 Thermostatic expansion valve 21 Check valve 10 bar 145 psi 11 Check valve 22 Blind disk only with optiona
18. Electrical supply hight voltage Hole 63 2 1 2 EC L V Electrical supply low voltage Hole 28 1 1 8 TYPICAL 2 PLACES Liebert CRV PD 273529 10 09 2010 Refrigerant Hydraulic and Electrical Connections Fig 96 CR020RW CR035RW connections f S Al d EX st m Gn Me GEZ k R e S N TES ox 1 V ele REAR 7 R VIEW 28 1 1 8 247 5 324 5 TOP 9 3 4 12 3 4 CONNECTIONS 83 440 77 gt 314 17 5 16 Ginen 225 5 EN E id Ru 8 7 8 N Y zi S i us o 1 4 o ow oF ec i i e amp 3 B g5 og S amp MZ isi To I 52 e 2 So E 4 i m z Nii 95 J Vin 9 e ER E 56 54 55 5 2 3 16 _ e 2 1 8 2 3 16 I BOTTOM CONNECTIONS 83 possible with raised floor 3 1 1 600 23 5 8 Unit Connection CRO20RW 50Hz CRO35RW 50Hz CRO20RW 60Hz CRO35RW 60Hz IWC Water to condenser inlet 1 1 4 GAS F 1 1 4 GAS F 1 1 4 FPT 1 1 4 FPT OWC Water from condenser outlet 1 1 4 GAS F 1 1 4 GAS F 1 1 4 FPT 1 1 4 FPT Condensate drain CD ATTENTION With
19. dB A en A 100 3325 5650 PWL 86 4 781 824 84 6 79 2 75 764 70 9 63 8 82 8 71 6 75 2708 4600 PWL 80 8 725 768 79 73 6 69 4 70 8 653 582 77 2 66 50 1972 3350 PWL 75 1 66 8 71 1 73 3 67 9 63 7 65 1 59 6 52 5 71 5 60 3 Level PWL sound power level SPL sound pressure level Liebert CRV PD 273529 10 09 2010 6 19 Heat Rejections A version 7 1 conditioning condensers Liebert HCR HCR condensers are especially designed to be coupled with the Liebert CRV A type air conditioning units power supplied at 50Hz CE market within a standard range of external air temperature from 20 C to 46 C The HCR familiy comes with a factory installed stepless fan speed controller especially designed and setted for usage with R410A refrigerant and digital scroll refrigerant circuit units with remote Coupling of Liebert CRV A type 50Hz CE mark air air cooled Tab 7a Coupling of Liebert HCR Condensers with Liebert CRV A type 50Hz CE mark air conditioning units External temperature up to 35 C External temperature up to 40 C External temperature up to 46 C MODEL Standard noise low noise standard noise low noise standard noise CRO20RA 1x HCR33 1x HCR43 1x HCR43 1 x HCR51 1x HCR51 1x HCR59 CRO35RA 1x HCR51 1x HCR59 1x HCR51 1x HCR59 1x HCR76 1x HCR88 The table shows the recommended combinations of the Air cooled Con
20. distance equivalent length ft m 150 46 From unit to VFD condenser max height ft m Max above 100 30 Max below 15 4 5 From unit to lee temp condenser max height ft m 3 Max above 100 30 Max below 0 0 Requirements Oil traps on vertical line of gas refrigerant ft m every 20 6 8 Installations of lee temp condensers below the level of the room unit will require subcoolers For W units Water or mixture temperature to condenser lower limit min 5 C 41 F For C and W units Max water pressure 16 bar Max differential pressure through the closed valve Dpev Max differential pressure across the valve for modulating service Dpms Models Dpey kPa Dpms kPa CRO20RW 300 300 CRO35RW 300 300 CRO40RC 175 175 2 4 Positioning Units placement This chapter provides some ideas of typical installation of the Liebert CRV unit s shows several examples of the server room layouts and applications using Liebert CRV units For best performances of Liebert CRV is important to reduce at minimum recirculation from hot aisle around the ends and or over the top of the racks prevent gaps between the racks reduce at minimum recirculation from hot aisle through server racks by using blanking panels ensure cold air is being distributed across the front of all neighboring equipment racks by properly placed Liebert CRV unit s distribute load within the rack it is
21. level have been measured according to the norm UNI EN ISO 3741 2001 Sound pressure level have been evaluated according to the norm EN13487 at 5m distance with free field conditions e Max working pressure is 43 barg Liebert CRV PD 273529 10 09 2010 7 2 Heat Rejections W version 40 35 30 25 20 15 10 5 0 7 2 Coupling of Liebert CRV W type 50Hz CE mark water cooled air conditioning units with remote Liebert HPD Dry Coolers The water condensed units are provided with a water refrigerant exchanger with braze welded plates made of stainless steel this advanced exchanger type gives the highest efficiency in heat exchange In addition a certain oversizing of the exchanger has been provided so as to reduce pressure drops and energy consumption of the water pump as much as possible and thus to allow the unit to operate with the external chiller in closed 4 circuit even at high outdoor temperatures When operating in a closed circuit the water is cooled by the outdoor air in a heat exchanger in this case to avoid unwanted ice formation during winter it is advisable to use a water glycol mixture The circulation of the water glycol mixture is forced the pump is not supplied If mains water or tower water is used when installing the unit fit a mechanical filter on the water line to protect the condenser against possible impurities contained in the water for condenser cleaning see the servic
22. panels are custom powder coated to protect against corrosion The double wall constructed side panels separate the 1 2 2 0 lb ft insulation from the airstream The unit is mounted on casters for quick installation and provided with levelling feet The perforated inlet and outlet panels have 8196 open area and the rear door utilizes a Kn rr rack style handle and hinges SERVICE ACCESS All service and maintenance is performed through the front and rear of the unit including any component removal No side access is required All electrical and piping connections are made through the top and or bottom of the unit All units are provided with a Superior Service Access Panel to provide additional access FILTER The unit is equipped with two deep pleated 4 filters rated MERV8 following ASHRAE 52 2 1999 4596 by ASHRAE 52 1 1992 or G4 following EN779 located within the cabinet and accessible from the rear of the unit A filter clog alarm is included LOCKING DISCONNECT SWITCH A molded case circuit interrupter disrupts the flow of power to the unit The electric panel high voltage compartment can only be accessed with the switch in the off position Conveniently located behind the iCOM display door for quick access Water glycol cooled models DX COOLING COIL The evaporator coil has 7 25 ft 0 674 m face area 4 or 5 rows deep It is constructed of copper tubes and hydrophilic coated aluminium fins The hydrophilic coating Liebert CRV PD 273529
23. the connection steps on site and the unit start up extremely easy the fan speed regulator with phase cutoff can be selected to control up to two set point values for the water delivery temperature of the Dry Cooler Do not use fan speed regulator other than the approved one supplied by the manufacturer When the Dry Cooler is ordered without temperature control an outer on off type control to be arranged by the customer is anyway allowed and must be connected on site with the suitable terminals available in the electric board Q of the unit see wiring diagram enclosed to the unit Liebert CRV PD 273529 10 09 2010 Heat Rejections W version The axial fans are equipped with protection grid and are statically and dynamically balanced they can guarantee high efficiency and a low emitted noise level above all in the low noise version further they are equipped with motors able to operate within a wide range of outdoor working temperatures Protection degree IP 54 Single phase fans feature an electric condenser incorporatedin the terminal board Heat exchanger with oval geometry tubes ensuring the best air flow and thus an increase in the efficiency of the heat exchange for a lower emitted noise level Tubes are in copper and fins in aluminum with wide heat exchange surface Upon request optional the unit can be ordered with fins in epoxy coated aluminum with a better protection The coil manifolds are in copper with flanged connecti
24. typically over 10kW per rack or load distribution in the row s of racks is not constant and high energy efficiency is required it is strongly recommended to apply CoolFlex cold aisle containment together with Liebert CRV Other advantage of the CoolFlex application is less limitations see above points Kn rr CoolFlex 2 4 6 Example of applications with Liebert XD When high density IT equipment is used typically over 10kW per rack with less floor space available especially when scalable solution is required starting from less heat load and ready for future grown the best answer is Liebert CRV together with Liebert XD system Please find following an example layout of typical installation with two rows of racks with Liebert XDV modules Two Liebert CRV units are used to support the Liebert XD system and to ensure N 1 redundancy on humidity control See also CFD result showing site view of the room lt DO 2 9 Liebert CRV PD 273529 10 09 2010 Application of Liebert CRV 2 5 Temperature sensors The sensor may be placed where desired or left coiled inside the unit It is recommended that the sensor be routed to the front of the heat load for the most accurate temperature reading In InRow configuration the temperature sensor monitors the temperature of the air entering the rack equipment The reading is used to control the operation of the unit so the sensor must be placed
25. 1 6 52 9 14 1 57 4 16 9 62 4 Cooling capacities are net values All capacities are nominal values actual performance will be 5 NOTE Data rated with Standard MERV 8 G4 filter Some options or combinations of options may result in reduced airflow Consult factory for recommendations Refer to Tab 6j for standard air flow Liebert CRV PD 273529 10 09 2010 Specifications Electrical data 6 5 Electric data Tab 6i Electrical data mr Power FLA LRA RESIDUAL CURRENT CIRCUIT ER Modal supply A A BREAKERS lAn 0 3A 400V Cooling CR020 22 3 107 40 A Curve C Fan compressor CR035 400 3N 50 Hz gg 121 50 A Curve C Cooling Electrical heating CR020 31 0 116 50 A Curve C dehumidification Fan compressor 400 3N 50Hz CR035 36 7 130 63 A Curve C electrical heaters Cooling Humidification CR020 31 0 116 50 A Curve C Fan compressor humidifier CR035 3001 3N 190 Fe 36 7 130 63 A Curve C z Power FLA LRA RESIDUAL CURRENT CIRCUIT Configuration Model supply A A BREAKERS lAn 0 3A 400V cooling CR040 400 3N 50 Hz 3 3 10 A Curve C Cooling Electrical hea ting CR040 400 3N 50 Hz 11 7 11 7 20 A Curve C Fan electrical heaters Cooling Humidification CR040 400 3N 50 Hz 9 5 9 5 20 A Curve C Fan humidifier Without condensate pump option The cables have to be sized in compliance with local standards and according to the type and characteri
26. 2 2 3 Device Size RLA Rated Load Amps LRA Locked Rotor Amps 6 18 Liebert CRV PD 273529 10 09 2010 Specifications Sound data 6 6 Sound data Tab 6j Liebert CRV Sound Data The following tables show sound levels for every octave band frequency CRO020 Air Cooled Tested MODEL Airflow Octave band frequency Hz Sound me Fan Level Speed SCFM m3 h Level 31 5 63 125 250 500 1000 2000 4000 8000 dB A em A 100 2454 4170 PWL 73 8 69 4 71 773 75 9 74 2 73 5 68 2 59 2 79 6 69 2 75 2166 3680 PWL 71 2 66 8 68 4 74 7 73 3 71 6 70 9 65 6 56 6 77 66 9 55 1780 3025 PWL 67 6 63 2 64 8 71 1 69 7 68 67 3 62 53 73 4 63 9 CRO035 Air Cooled Tested MODEL Airflow Octave band frequency Hz Sound Unit di Fan Level E SCFM m3 h Level 31 5 63 125 250 500 1000 2000 4000 8000 dB A em A 100 3260 5540 PWL 76 762 805 827 773 73 1 745 69 61 9 80 9 70 75 2708 4600 PWL 713 71 5 75 8 78 72 6 684 69 8 643 572 76 2 65 7 50 2048 3480 PWL 66 3 66 5 7 8 73 67 6 634 648 59 3 522 71 2 61 9 CRO040 Water Cooled Tested MODEL Airflow Octave band frequency Hz Sound gnit uin Level Ead SCFM m3 h Level 31 5 63 125 250 500 1000 2000 4000 8000
27. 2 way modulating valve controls the water glycol flow passing through the brazed plate condenser The iCOM control manages the valve actuator movement in order to maintain the desired condensing temperature for various entering water flow rates and temperatures The maximum differential pressure across the closed valve is 300 kPa 43 5 PSI Maximum system pressure is 230 PSI 1586 kPa INTELLISLOT WEB CARD IS WEBL Provides 10 100 baseT Ethernet connectivity for unit monitoring and management The supported management interfaces include SNMP for Network Management Systems and HTTP for web page viewing INTELLISLOT 485 CARD IS 485L Provides RS 485 Modbus network connectivity to Building Management Systems for unit monitoring and management FILTER The optional filters are two deep pleated 4 102 mm rated MERV11 following ASHRAE 52 2 1999 60 65 by ASHRAE 52 1 1992 or F5 following EN779 located within the cabinet and accessible from the rear of the unit A filter clog alarm is included REHEAT HUMIDIFIER LOCKOUT Includes the necessary relays to disable the reheat and humidifier from an external 24 volt signal 10 09 2010 3 4 Liebert CRV ONE 1 EXTRA COMMON ALARM CONTACT Provides the customer with a total of two sets of normally open n o contacts for remote indication of unit alarms LIQUI TECT SENSOR Is a solid state water sensor that has no moving parts and is hermetically sealed to keep out dust and dirt When the sensor detects t
28. 29420 5 37 18328 9 59 32731 6 12 20888 Heat rejection kW BTU H 48 5 165531 29 7 101366 48 5 165531 29 7 101366 48 3 164848 30 4 103755 Flow Rate I s GPM 0 63 9 99 0 385 6 10 1 042 16 52 0 634 10 05 1 149 18 21 0 722 11 44 Pressure Drop kPa ft H2O 26 8 70 18 6 02 66 22 08 44 14 72 79 26 43 55 18 40 Supply Air Temperature C F 17 4 63 3 19 8 67 6 17 4 63 3 19 8 67 6 18 1 64 6 21 8 71 2 37 C DB 98 6 F 24 RH Total kW BTU H 39 9 136179 25 1 85666 39 9 136179 25 1 85666 36 8 125598 23 1 78840 Sensible kW BTU H 39 9 136179 25 1 85666 39 9 136179 25 1 85666 36 8 125598 23 1 78840 Unit Power Imput kW BTU H 8 62 29420 5 53 18874 8 62 29420 5 53 18874 9 59 32731 6 1 20819 Heat rejection KW BTU H 48 5 165531 30 6 104438 48 5 165531 30 6 104438 46 4 158363 29 2 99660 Flow Rate I s GPM 0 63 9 99 0 398 6 31 1 007 15 96 0 627 9 94 1 095 17 36 0 688 10 91 Pressure Drop kPa ft H20 26 8 70 19 6 36 62 20 74 43 14 39 72 24 09 50 16 73 Supply Air Temperature C F 17 4 63 3 21 1 70 0 17 4 63 3 21 1 70 0 16 4 61 5 19 8 67 6 35 C DB 95 F 26 RH Total kW BTU H 37 4 127646 23 1 78840 37 4 127646 23 1 78840 36 9 125940 22 3 76110 Sensible kW BTU H 37 4 127646 23 1 78840 37 4 127646 23 1 78840 36 3 123892 223 76110 Unit Power Imput kW BTU H 8 6 29352 5 49 18737 8 6 29352 5 49 18737 9 58 32697 6 08 20751 Heat rejection kW BTU H 46 156998 28 6 97612 46 156998 28 6 97612 45 4 154950 28 4 96929 Flow Rate I s GPM 0 594 9 42 0 369 5 85
29. 3 5 148466 26 1 89079 Supply Air Temperature C F 8 1 46 6 10 4 50 7 8 1 46 6 10 4 50 7 8 3 46 9 10 6 51 1 72 F DB 58 7 F WB 22 2 C DB 14 8 C WB 45 RH Total kW BTU H 33 4 113994 20 68260 33 4 113994 20 68260 32 7 111605 19 5 66554 Sensible kW BTU H 27 7 94540 17 6 60069 27 7 94540 17 6 60069 27 3 93175 17 4 59386 Flow Rate Ve GPM 0 539 8 54 0 322 5 10 0 835 13 24 0 496 7 86 0 116 1 84 0 686 10 87 Pressure Drop kPa ft H20 19 6 36 12 4 01 44 14 72 28 9 37 81 27 10 50 16 73 Unit Power Imput kW BTU H 9 47 32321 5 79 19761 9 47 32321 5 79 19761 10 01 34164 6 09 20785 Heat rejection kW BTU H 42 8 146076 25 7 87714 42 8 146076 25 7 87714 42 6 145394 25 5 87032 Supply Air Temperature C F 7 5 45 5 9 8 49 6 7 5 45 5 9 8 49 6 7 6 45 7 9 9 49 8 Record the power consumption of the fan at various operating percentages min 100 Cooling capacities are net values All capacities are nominal values actual performance will be 5 NOTE Data rated with Standard MERV 8 G4 filter Some options or combinations of options may result in reduced airflow Consult factory for recommendations Refer to Tab 6j for standard air flow 6 8 Liebert CRV PD 273529 10 09 2010 Specifications Glycol cooled 6 3 Performances glycol cooled Tab 6e Glycol cooled 50Hz
30. 417 Supply Air Temperature C F 9 9 49 8 11 3 52 3 22 C DB 71 6 F 55 RH Total kW BTU H 31 3 106827 19 3 65871 Liebert CRV PD 273529 10 09 2010 6 1 Specifications Air cooled Sensible kW BTU H 23 1 78840 15 3 52219 Unit Power Imput kW BTU H 9 58 32697 6 02 20546 Heat rejection kW BTU H 40 88 139523 25 32 86417 Supply Air Temperature C F 9 6 49 3 11 2 52 2 22 C DB 71 6 F 50 RH Total kW BTU H 30 5 104097 18 9 64506 Sensible kW BTU H 24 4 83277 16 4 55973 Unit Power Imput kW BTU H 9 57 32662 6 09 20785 Heat rejection kW BTU H 40 07 136759 24 99 85291 Supply Air Temperature C F 9 48 2 10 4 50 7 Record the power consumption of the fan at various operating percentages min 100 Cooling capacities are net values All capacities are nominal values actual performance will be 5 NOTE Data rated with Standard MERV 8 G4 filter Some options or combinations of options may result in reduced airflow Consult factory for recommendations Refer to Tab 6j for standard air flow 6 2 Liebert CRV PD 273529 10 09 2010 Specifications Air cooled Tab 6b Air cooled 60 Hz 60 Hz Cond Temp 120 F 48 9 C CRO35RA CRO20RA 105 F DB 71 F WB 40 6 C DB 21
31. 5 17 4 59386 Sensible kW BTU H 28 1 95905 18 6 63482 26 5 90445 17 4 59386 Unit Power Imput kW BTU H 9 58 32697 6 02 20546 11 8 40273 7 3 24915 Heat rejection kW BTU H 40 9 139592 25 4 86690 39 9 136179 24 7 84301 Flow Rate Us GPM 1 157 18 34 0 719 11 40 1 043 16 53 0 645 10 22 Pressure Drop kPa ft H20 92 30 78 66 22 08 74 24 76 52 17 40 Supply Air Temperature C F 9 9 49 8 11 7 53 1 10 7 51 3 12 4 54 3 22 C DB 71 6 F 55 RH Total kW BTU H 31 3 106827 19 4 66212 28 1 95905 17 4 59386 Sensible kW BTU H 23 2 79182 15 51195 21 6 73721 14 1 48123 Unit Power Imput kW BTU H 9 58 32697 6 02 20546 11 8 40273 7 3 24915 Heat rejection kW BTU H 40 9 139592 25 4 86690 39 9 136179 24 7 84301 Flow Rate Us GPM 1 158 18 35 0 719 11 40 1 044 16 55 0 646 10 24 Pressure Drop kPa ft H20 92 30 78 66 22 08 74 24 76 52 17 40 Supply Air Temperature C F 9 7 49 5 11 4 52 5 10 5 50 9 12 1 53 8 22 C DB 71 6 F 50 RH Total kW BTU H 30 5 104097 18 9 64506 27 3 93175 17 1 58362 Sensible kW BTU H 24 4 83277 15 9 54267 22 9 78158 15 51195 Unit Power Imput kW BTU H 9 57 32662 6 01 20512 11 8 40273 7 29 24881 Heat rejection kW BTU H 40 1 136861 24 9 84984 39 1 133448 24 4 83277 Flow Rate Us GPM 1 129 17 90 0 701 11 11 1 021 16 18 0 635 10 06 Pressure Drop kPa ft H20 87 29 11 63 21 08 71 23 75 51 17 06 Supply Air Temperature C F 9 1 48 4 10 8 51 4 9 9 49 8 11 4 52 5 Record the power consumption of the fan at
32. 50 2 1 38 2866 1250 1070 EST060 62 8 28200 51 400 3 50 3 2 07 4066 1250 1070 EST070 69 5 27600 51 400 3 50 3 2 07 4066 1250 1070 Performances Electric data Overall dimensions gg Duty a Aren w i Supply ane absorbed Width Depth Height b kW m3 h db A V ph Hz n kW mm mm mm ELMO18 17 9 9800 43 230 1 50 2 0 58 2236 820 1030 ELMO27 27 0 14700 44 230 1 50 3 0 87 3136 820 1030 ELT040 36 9 15400 43 400 3 50 2 0 96 2866 1250 1070 ELT047 44 5 21000 44 400 3 50 3 0 99 4066 1250 1070 ELT055 55 7 23100 45 400 3 50 3 1 44 4066 1250 1070 ELTO65 65 6 32000 46 400 3 50 4 1 92 5266 1250 1070 a at the following operative conditions outdoor temperature 35 C inlet outlet water temperature 45 C 40 C fluid is pure water slm zero meters For different conditions refer to NewHirating program Clean exchange surfaces b vertical flow installation c sound pressure level free field at 10 m distance 7 5 Liebert CRV PD 273529 10 09 2010 Installation drawings Fig 8a Overall dimensions service area FRONT VIEW ACCESS REQUIRED TO SERVICE WITHIN ROW ATTENTION REAR SERVICE AREA UNIT IS S B OR S A WHEN B IS NOT AVAILABLE 650 700 25 9 16 27 9 16 350 13 3 4 650 25 9 16 100 2725 107 5 16 1175 46 1 4 550 21 5 8 100 600 8 15 16 23 5 8 700 27 9 16 Lieber
33. 544 24 44 83277 Flow Rate I s GPM 0 643 10 19 0 391 6 20 1 006 15 95 0 61 9 67 1 418 2248 0 855 13 55 Pressure Drop kPa ft H2O 26 8 70 18 6 02 62 20 74 41 13 72 118 39 48 76 25 43 Unit Power Imput kW BTU H 9 43 32185 5 95 20307 9 48 32185 5 95 20307 9 98 34062 6 26 21365 Heat rejection kW BTU H 50 4 172015 30 7 104779 50 4 172015 30 7 104779 50 2 171333 30 6 104438 Supply Air Temperature C F 14 7 58 5 19 3 66 7 14 7 58 5 19 3 66 7 15 1 59 2 19 6 67 3 95 F DB 67 9 F WB 35 C DB 19 9 C WB 23 RH Total kW BTU H 39 1 133448 23 7 80888 39 1 133448 23 7 80888 38 5 131401 23 2 79182 Sensible kW BTU H 39 1 133448 23 7 80888 39 1 133448 23 7 80888 38 5 131401 23 2 79182 Flow Rate l s GPM 0 617 9 78 0 374 5 93 0 963 15 26 0 583 9 24 1 354 2146 0 814 12 90 Pressure Drop kPa ft H2O 24 8 03 17 5 69 57 19 07 37 12 38 108 36 13 69 23 08 Unit Power Imput kW BTU H 9 44 3 32219 5 91 20171 9 44 3 32219 5 91 20171 9 99 34096 6 22 21229 Heat rejection KW BTU H 48 5 165531 29 5 100684 48 5 165531 29 5 100684 48 4 165189 29 4 100342 Supply Air Temperature C F 13 2 55 8 17 5 63 5 13 2 55 8 17 5 63 5 13 6 56 5 17 8 64 0 90 F DB 66 2 F WB 32 2 C DB 19 0 C WB 27 RH Total kW BTU H 39 6 135155 225 76793 39 6 135155 225 76793 37 3 127305 22 44 75427 Sensible kW BTU H 38 6 131742 225 76793 38 6 131742 225 76793 36 8 125598 22 44 75427 Flow Rate I s GPM 0 609 9 65 0 358 5 67 0 95 15 06 0 556 8 81 1 314 20 83 0 775 12 28 P
34. 6 C WB 17 RH Total kW BTU H 40 4 137885 24 6 83960 Sensible kW BTU H 40 4 137885 24 6 83960 Unit Power Imput kW BTU H 11 09 37850 6 9 23550 Heat rejection kW BTU H 51 5 175770 31 5 107510 Supply Air Temperature C F 17 7 63 9 22 1 71 8 100 F DB 69 5 F WB 37 8 C DB 20 8 C WB 20 RH Total kW BTU H 38 5 131401 23 4 79864 Sensible kW BTU H 38 5 131401 23 4 79864 Unit Power Imput kW BTU H 11 1 37884 6 86 23413 Heat rejection kW BTU H 49 6 169285 30 3 103414 Supply Air Temperature C F 16 1 61 0 20 3 68 5 95 F DB 67 9 F WB 35 C DB 19 9 C WB 23 RH Total kW BTU H 36 7 125257 22 3 76110 Sensible kW BTU H 36 7 125257 22 3 76110 Unit Power Imput kW BTU H 11 11 37918 6 82 23277 Heat rejection kW BTU H 47 8 163141 29 1 99318 Supply Air Temperature C F 14 5 58 1 18 5 65 3 90 F DB 66 2 F WB 32 2 C DB 19 0 C WB 27 RH Total kW BTU H 35 2 120138 21 2 72356 Sensible kW BTU H 35 2 120138 21 2 72356 Unit Power Imput kW BTU H 11 11 37918 6 78 23140 Heat rejection kW BTU H 46 3 158022 28 95564 Supply Air Temperature C F 12 5 54 5 16 6 61 9 85 F DB 64 5 F WB 29 4 C DB 18 1 C WB 31 RH Total kW BTU H 34 3 117066 20 1 68601 Sensible kW BTU H 33 4 113994 20 1 68601 Unit Power Imput kW BTU H 11 12 37953 6 74 23004 Heat rejection kW BTU H 45 4 154950 26 8 91468 Supply Air Temperature C F 11 1 52 0 14 8 58 6 80 F DB 62 8 F WB 26 7 C DB 17 1 C WB 37 RH Total kW B
35. 6 5 90445 41 5 141640 25 8 88055 Flow Rate Us GPM 1 23 19 50 0 755 11 97 1 095 17 36 0 681 10 79 Pressure Drop kPa ft H20 103 34 46 71 23 75 82 27 43 58 19 40 Supply Air Temperature C F 12 53 6 13 9 57 0 12 8 55 0 14 5 58 1 28 C DB 82 4 45 RH Total kW BTU H 34 6 118090 21 4 73038 31 2 106486 19 4 66212 Sensible kW BTU H 27 2 92834 18 61434 25 8 88055 17 2 58704 Unit Power Imput kW BTU H 9 58 32697 60 6 206828 11 78 40205 7 35 25086 Heat rejection kW BTU H 44 2 150855 27 5 93858 43 146759 26 8 91468 Flow Rate Us GPM 1 272 20 16 0 79 12 52 1 141 18 09 0 71 11 25 Pressure Drop kPa ft H20 110 36 80 77 25 76 88 29 44 63 21 08 Supply Air Temperature C F 13 2 55 8 15 59 0 13 9 57 0 15 6 60 1 25 C DB 77 F 45 RH Total kW BTU H 32 3 110240 19 9 67919 28 8 98294 17 9 61093 Sensible kW BTU H 26 7 91127 17 5 59728 25 85325 16 7 56997 Liebert CRV PD 273529 10 09 2010 6 9 Specifications Glycol cooled Unit Power Imput kW BTU H 9 58 32697 6 03 20580 11 8 40273 7 31 24949 Heat rejection kW BTU H 41 9 143005 25 9 88397 40 6 138568 25 2 86008 Flow Rate Us GPM 1 192 18 89 0 734 11 63 1 065 16 88 0 66 10 46 Pressure Drop kPa ft H2O 97 32 45 68 22 75 77 25 76 55 18 40 Supply Air Temperature C F 10 7 51 3 12 5 54 5 11 6 52 9 13 1 55 6 25 C DB 77 F 40 RH Total kW BTU H 31 3 106827 19 4 66212 28 1 9590
36. 6 51 1 72 F DB 58 7 F WB 22 2 C DB 14 8 C WB 45 RH Total kW BTU H 30 9 105462 18 5 63141 Sensible kW BTU H 26 4 90103 17 4 59386 Unit Power Imput kW BTU H 11 11 37918 6 67 22765 Heat rejection kW BTU H 42 01 143380 25 17 85905 Supply Air Temperature C F 8 1 46 6 9 9 49 8 Record the power consumption of the fan at various operating percentages min 100 Cooling capacities are net values All capacities are nominal values actual performance will be 5 NOTE Data rated with Standard MERV 8 G4 filter Some options or combinations of options may result in reduced airflow Consult factory for recommendations Refer to Tab 6j for standard air flow 6 4 Liebert CRV PD 273529 10 09 2010 Specifications Water cooled 6 2 Performances water cooled Tab 6c Water cooled 50 Hz 50 Hz 18 C 64 40F EWT 40 C 1049 24 C 75 2 F EWT 40 C 1049 30 C 86 F EWT 45 C 113 F ond Temp Cond Temp Cond Temp CRO35RW CRO20RW CRO35RW CRO20RW CRO35RW CRO20RW 40 C DB 104 F 20 RH Total kW BTU H 39 9 136179 24 8 82936 39 9 136179 24 3 82936 38 7 132083 24 3 82936 Sensible kW BTU H 39 9 136179 24 8 82936 39 9 136179 24 3 82936 38 7 132083 24 3 82936 Unit Power Imput kW BTU H 8 62 29420 5 37 18328 8 62
37. 64 Flow Rate Us GPM 1 315 20 84 0 821 13 01 1 191 18 88 0 749 11 87 Pressure Drop kPa ft H20 117 39 14 84 28 10 95 31 78 69 23 08 Supply Air Temperature C F 15 4 59 7 18 5 65 3 16 8 62 2 19 8 67 6 32 C DB 89 6 F 29 RH Total kW BTU H 34 3 117066 21 1 72014 31 105803 19 5 66554 Sensible kW BTU H 34 1 116383 21 1 72014 31 105803 19 5 66554 Unit Power Imput kW BTU H 9 58 32697 6 06 20683 11 78 40205 7 36 25120 Heat rejection kW BTU H 43 8 149489 27 2 92834 42 7 145735 26 8 91468 Flow Rate Us GPM 1 26 19 97 0 779 12 35 1 134 17 97 0 712 11 29 Pressure Drop kPa ft H20 108 36 13 76 25 43 87 29 11 63 21 08 Supply Air Temperature C F 13 2 55 8 16 6 61 9 14 9 58 8 17 8 64 0 30 C DB 86 F 34 RH Total kW BTU H 33 8 115359 20 9 71332 30 4 103755 18 7 63823 Sensible kW BTU H 31 5 107510 20 9 71332 30 4 103755 18 7 63823 Unit Power Imput kW BTU H 9 58 32697 6 05 20649 11 78 40205 7 34 25051 Heat rejection kW BTU H 43 3 147783 27 92151 42 2 144029 26 1 89079 Flow Rate Us GPM 1 242 19 69 0 771 12 22 1 116 17 69 0 688 10 91 Pressure Drop kPa ft H20 105 35 13 74 24 76 84 28 10 59 19 74 Supply Air Temperature C F 12 8 55 0 14 6 58 3 13 5 56 3 16 4 61 5 28 C DB 82 4 38 RH Total kW BTU H 33 4 113994 20 4 69625 29 7 101366 18 5 63141 Sensible kW BTU H 29 5 100684 19 5 66554 27 9 95223 18 5 63141 Unit Power Imput kW BTU H 9 58 32697 6 04 20615 11 79 40239 7 33 25017 Heat rejection kW BTU H 43 146759 2
38. 7 63 9 85 F DB 64 5 F WB 29 4 C DB 18 1 C WB 31 RH Total kW BTU H 32 1 109557 18 7 63823 32 1 109557 18 7 63823 Sensible kW BTU H 32 1 109557 18 7 63823 32 1 109557 18 7 63823 Flow Rate Us GPM 1 3 20 61 0 777 12 32 1 406 22 29 0 84 13 31 Pressure Drop kPa ft H20 105 35 13 68 22 75 126 42 15 82 27 43 Unit Power Imput kW BTU H 13 11 44744 7 94 27099 13 11 44744 7 94 27099 Heat rejection kW BTU H 44 1 150513 26 6 90786 44 1 150513 26 6 90786 Supply Air Temperature C F 12 5 54 5 15 8 60 4 12 5 54 5 15 8 60 4 80 F DB 62 8 F WB 26 7 C DB 17 1 C WB 37 RH Total kW BTU H 30 6 104438 18 5 63141 30 6 104438 18 5 63141 Sensible kW BTU H 29 98977 18 61434 29 98977 18 61434 Flow Rate Us GPM 1 283 20 34 0 749 11 87 1 387 21 98 0 809 12 82 Pressure Drop kPa ft H20 103 34 46 63 21 08 122 40 82 7T 25 76 Unit Power Imput kW BTU H 13 11 44744 7 9 26963 13 11 44744 7 9 26963 Heat rejection kW BTU H 43 6 148807 25 8 88055 43 6 148807 25 8 88055 Supply Air Temperature C F 11 51 8 14 2 57 6 11 51 8 14 2 57 6 80 F DB 66 5 F WB 26 7 C DB 19 2 C WB 50 RH Total kW BTU H 32 7 111605 19 5 66554 32 7 111605 19 5 66554 Sensible kW BTU H 25 85325 16 54608 25 85325 16 54608 Flow Rate Us GPM 1 36 21 56 0 808 12 81 1 471 23 32 0 874 13 85 Pressure Drop kPa ft H20 115 38 47 73 24 42 137 45 83 88 29 44 Unit Power Imput kW BTU H 13 11 44744 7 98 27236 13 11 44744 7 98 27236 Heat rejection kW BTU H 45 8 156315 27
39. 7 9 61093 27 4 93516 17 9 61093 26 7 91127 17 5 59728 Liebert CRV PD 273529 10 09 2010 6 5 Specifications Water cooled Unit Power Imput kW BTU H 8 58 29284 5 44 18567 8 58 29284 5 44 18567 9 58 32697 6 03 20580 Heat rejection kW BTU H 42 3 144370 26 3 89762 42 3 144370 26 3 89762 41 9 143005 25 9 88397 Flow Rate Ve GPM 0 542 8 59 0 336 5 33 0 888 14 08 0 549 8 70 0 971 15 39 0 598 9 48 Pressure Drop kPa ft H20 20 6 69 14 4 68 49 16 39 34 11 37 57 19 07 39 13 05 Supply Air Temperature C F 10 3 50 5 12 2 54 0 10 3 50 5 12 2 54 0 10 7 51 3 12 5 54 5 25 C DB 77 F 40 RH Total kW BTU H 32 7 111605 20 3 69284 32 7 111605 20 3 69284 31 3 106827 19 4 66212 Sensible kW BTU H 28 8 98294 19 64847 28 8 98294 19 64847 28 1 95905 18 6 63482 Unit Power Imput kW BTU H 8 58 29284 5 43 18533 8 58 29284 5 43 18533 9 58 32697 6 02 20546 Heat rejection kW BTU H 41 3 140957 25 7 87714 41 3 140957 25 7 87714 40 9 139592 25 4 86690 Flow Rate Ve GPM 0 528 8 37 0 329 5 21 0 863 13 68 0 536 8 50 0 943 14 95 0 585 9 27 Pressure Drop kPa ft H2O 18 6 02 14 4 68 46 15 39 32 10 71 54 18 07 37 12 38 Supply Air Temperature C F 9 5 49 1 11 4 52 5 9 5 49 1 11 4 52 5 9 9 49 8 11 7 53 1 22 C DB 71 6 F 55 RH Total kW BTU H 32 7 111605 20 3 69284 32 7 111605 20 3 69284 31 3 106827 19 4 66212 Sensible kW BTU H 23 9 81571 15 4
40. 8 Unit Connection CRO040RC 50Hz CRO040RC 60Hz IWC Chilled water inlet 1 1 4 GAS F 1 1 4 FPT OWC Chilled water outlet 1 1 4 GAS F 1 1 4 FPT Condensate drain CD ATTENTION With pump CD is ID 20 3 4 1 MPT connected with HD See DP ix 1 2 GAS F for top connections 1 2 FPT for top connections HF Hurnidifier feed 3 4 GAS F for bottom connections 3 4 FTP for bottom connections Humidifier drain HD ATTENTION With pump CD is ID 22 7 8 1 MPT connected with HD See DP DP Pump drain 1 2 GAS F 1 2 FPT EC HV Electrical supply hight voltage Hole 63 2 1 2 EC L V Electrical supply low voltage Hole 28 1 1 8 TYPICAL 2 PLACES Liebert CRV PD 273529 10 09 2010 Refrigerant Hydraulic and Electrical Connections Fig 9d Electrical board layout 50 Hz lo 00000000000000 0000 OO AOxX8O 000 00 0 00 Ob saw ooo OOO OOO ooo OOo ooo OOO OOO 0oo oo oo o0 ooo looor H
41. 881 21 6 73721 16 6 56656 Sensible kW BTU H 25 8 88055 21 6 73721 16 6 56656 Unit Power Imput kW BTU H 1 28 4369 1 26 4300 1 26 4300 Flow Rate I s GPM 1 33 21 08 1 03 16 33 0 79 12 52 Pressure Drop kPa ft H20 62 20 74 38 12 71 24 8 03 Supply Air Temperature C F 12 1 53 8 14 3 57 7 17 62 6 25 C DB 77 F 40 RH Total kW BTU H 26 5 90445 21 6 73721 16 6 56656 Sensible kW BTU H 26 5 90445 21 6 73721 16 6 56656 Unit Power Imput kW BTU H 1 26 4300 1 26 4300 1 26 4300 Flow Rate I s GPM 1 26 19 97 1 03 16 33 0 79 12 52 Pressure Drop kPa ft H2O 56 18 73 38 12 71 24 8 03 Supply Air Temperature C F 11 7 53 1 14 3 57 7 17 62 6 22 C DB 71 6 F 55 RH Total kW BTU H 23 9 81571 16 6 56656 11 3 38567 Liebert CRV PD 273529 10 09 2010 6 15 Specifications CW Sensible kW BTU H 20 5 69967 16 6 56656 11 3 38567 Unit Power Imput kW BTU H 1 26 4300 1 26 4300 1 26 4300 Flow Rate l s GPM 1 14 18 07 0 79 12 52 0 54 8 56 Pressure Drop kPa ft H20 47 15 72 24 8 03 12 4 01 Supply Air Temperature C F 11 9 53 4 14 1 57 4 16 9 62 4 22 C DB 71 6 F 50 RH Total kW BTU H 21 6 73721 16 6 56656 11 3 38567 Sensible kW BTU H 21 3 72697 16 6 56656 11 3 38567 Unit Power Imput kW BTU H 1 26 4300 1 26 4300 1 26 4300 Flow Rate l s GPM 1 03 16 33 0 79 12 52 0 54 8 56 Pressure Drop kPa ft H20 39 13 05 24 8 03 12 4 01 Supply Air Temperature C F 1
42. 9 46 32287 5 84 19932 10 34130 6 15 20990 Heat rejection KW BTU H 45 5 155292 27 3 93175 45 5 155292 27 3 93175 45 2 154268 27 1 92492 Supply Air Temperature C F 9 5 49 1 12 1 53 8 9 5 49 1 12 1 53 8 9 8 49 6 12 3 54 1 80 F DB 66 5 F WB 26 7 C DB 19 2 C WB 50 RH Total kW BTU H 38 9 132766 23 78499 38 9 132766 23 78499 37 9 129353 225 76793 Sensible kW BTU H 27 5 93858 17 4 59386 27 5 93858 17 4 59386 27 1 92492 17 2 58704 Flow Rate l s GPM 0 614 9 73 0 365 5 79 0 958 15 18 0 566 8 97 1 336 21 18 0 787 12 47 Pressure Drop kPa ft H2O 24 8 03 16 5 35 56 18 73 35 11 71 105 35 13 64 21 41 Unit Power Imput kW BTU H 9 45 32253 5 89 20103 9 45 32253 5 89 20103 9 99 34096 6 19 21126 Heat rejection KW BTU H 48 3 164848 28 8 98294 48 3 164848 28 8 98294 47 8 163141 28 6 97612 Supply Air Temperature C F 11 7 53 1 14 2 57 6 11 7 53 1 14 2 57 6 11 9 53 4 14 3 57 7 75 F DB 62 5 F WB 23 9 C DB 16 9 C WB 50 RH Total kW BTU H 36 1 123209 21 6 73721 36 1 123209 21 6 73721 35 3 120479 21 71673 Sensible kW BTU H 27 1 92492 17 58021 27 1 _ 92492 17 58021 26 7 91127 16 7 56997 Flow Rate l s GPM 0 575 9 11 0 345 5 47 0 895 14 19 0 534 8 46 1 247 19 77 0 737 11 68 Pressure Drop kPa ft H2O 22 7 36 14 4 68 49 16 39 31 10 37 93 31 11 57 19 07 Unit Power Imput KW BTU H 9 46 32287 5 85 19966 9 46 32287 5 85 19966 10 34130 6 15 20990 Heat rejection kW BTU H 45 5 155292 27 3 93175 45 5 155292 27 3 93175 45 3 154609 27 1
43. 9 55 2 15 3 59 5 85 F DB 64 5 F WB 29 4 C DB 18 1 C WB 31 RH Total kW BTU H 32 6 111264 27 9 95223 Sensible KW BTU H 32 6 111264 27 9 95223 Unit Power Imput kW BTU H 1 26 4300 1 26 4300 Flow Rate I s GPM 1 39 22 03 0 86 13 63 Pressure Drop kPa ft H2O 67 22 42 28 9 37 Supply Air Temperature C F 12 6 54 7 15 1 59 2 80 F DB 62 8 F WB 26 7 C DB 17 1 C WB 37 RH Total kW BTU H 28 3 96588 23 4 79864 Sensible KW BTU H 28 3 96588 23 4 79864 Unit Power Imput kW BTU H 1 26 4300 1 26 4300 Flow Rate I s GPM 1 21 19 18 0 73 11 57 Pressure Drop kPa ft H2O 52 17 40 20 6 69 Supply Air Temperature C F 12 3 54 1 15 59 0 80 F DB 66 5 F WB 26 7 C DB 19 2 C WB 50 RH Total kW BTU H 35 6 121503 23 4 79864 Sensible KW BTU H 26 8 91468 21 6 73721 Unit Power Imput kW BTU H 1 26 4300 1 28 4369 Flow Rate I s GPM 1 52 24 09 0 73 11 57 Pressure Drop kPa ft H2O 78 26 10 21 7 03 Supply Air Temperature C F 13 55 4 16 60 8 75 F DB 62 5 F WB 23 9 C DB 16 9 C WB 50 RH Total kW BTU H 24 7 84301 21 71673 18 4 62799 Sensible kW BTU H 22 4 76451 18 4 62799 Unit Power Imput kW BTU H 1 28 4369 1 26 4300 Flow Rate l s GPM 1 05 16 64 0 57 9 03 Pressure Drop kPa ft H2O 40 13 38 13 4 35 Supply Air Temperature C F 12 8 55 0 15 59 0 75 F DB 61 F WB 23 9 C DB 16 1 C WB 45 RH Total kW BTU H 23 8 81229 18 4 62799 Sensible KW BTU H 23 8 81229 18 4 62799 Unit Power Imput kW BTU
44. B 89 6 F 29 RH Total kW BTU H 37 6 128329 32 7 111605 28 95564 Sensible kW BTU H 37 2 126964 32 7 111605 28 95564 Unit Power Imput kW BTU H 1 26 4300 1 26 4300 1 26 4300 Flow Rate I s GPM 1 79 28 37 1 56 24 73 1 34 21 24 Pressure Drop kPa ft H20 106 35 46 81 27 10 60 20 07 Supply Air Temperature C F 12 5 54 5 15 59 0 17 6 63 7 30 C DB 86 F 34 RH Total kW BTU H 35 9 122527 29 6 101025 24 8 84642 Sensible kW BTU H 34 116042 29 6 101025 24 8 84642 Unit Power Imput kW BTU H 1 26 4300 1 26 4300 1 26 4300 Flow Rate I s GPM 1 71 27 10 1 41 22 35 1 19 18 86 Pressure Drop kPa ft H20 97 32 45 68 22 75 49 16 39 Supply Air Temperature C F 12 4 54 3 14 8 58 6 17 4 63 3 28 C DB 82 4 38 RH Total kW BTU H 33 112629 26 5 90445 21 6 73721 Sensible kW BTU H 30 7 104779 26 5 90445 21 6 73721 Unit Power Imput kW BTU H 1 28 4369 1 26 4300 1 26 4300 Flow Rate I s GPM 1 58 25 04 1 26 19 97 1 03 16 33 Pressure Drop kPa ft H20 84 28 10 55 18 40 38 12 71 Supply Air Temperature C F 12 3 54 1 14 6 58 3 17 2 63 0 28 C DB 82 4 45 RH Total kW BTU H 38 9 132766 28 6 97612 21 6 73721 Sensible kW BTU H 30 1 102731 25 6 87373 21 6 73721 Unit Power Imput kW BTU H 1 26 4300 1 28 4369 1 26 4300 Flow Rate I s GPM 1 86 29 48 1 36 21 56 1 03 16 33 Pressure Drop kPa ft H20 113 37 80 64 21 41 38 12 71 Supply Air Temperature C F 12 4 54 3 15 59 0 17 2 63 0 25 C DB 77 F 45 RH Total kW BTU H 27 8 94
45. C CW 60Hz 45 F 7 2 C EWT 10 F 45 F 7 2 C EWT 14 F 48 F 8 9 C EWT 14 F 5 6 C Water Rise 7 7 C Water Rise 5 6 C Water Rise 7 7 C Water Rise 105 F DB 71 F WB 40 6 C DB 21 6 C WB 17 RH Total kW BTU H 49 6 169285 45 4 154950 Sensible kW BTU H 49 6 169285 45 4 154950 Unit Power Imput kW BTU H 1 26 4300 1 26 4300 Flow Rate l s GPM 2 11 33 44 1 41 22 35 Pressure Drop kPa ft H2O 142 47 51 67 22 42 Supply Air Temperature C F 13 6 56 5 16 60 8 100 F DB 69 5 F WB 37 8 C DB 20 8 C WB 20 RH Total kW BTU H 45 5 155292 41 2 140616 Sensible kW BTU H 45 5 155292 41 2 140616 Unit Power Imput kW BTU H 1 26 4300 1 26 4300 Flow Rate l s GPM 1 94 30 75 1 28 20 29 Pressure Drop kPa ft H2O 121 40 48 56 18 73 Supply Air Temperature C F 13 4 56 1 15 8 60 4 95 F DB 67 9 F WB 35 C DB 19 9 C WB 23 RH Total kW BTU H 41 3 140957 36 8 125598 Sensible KW BTU H 41 3 140957 36 8 125598 Unit Power Imput kW BTU H 1 26 4300 1 26 4300 Flow Rate I s GPM 1 76 27 90 1 14 18 07 Pressure Drop kPa ft H2O 102 34 12 90 30 11 46 15 39 Supply Air Temperature C F 13 1 55 6 15 6 60 1 90 F DB 66 2 F WB 32 2 C DB 19 0 C WB 27 RH Total kW BTU H 37 126281 32 4 110581 Sensible kW BTU H 37 126281 32 4 110581 Unit Power Imput kW BTU H 1 26 4300 1 26 4300 Flow Rate I s GPM 1 58 25 04 1 01 16 01 Pressure Drop kPa ft H2O 84 28 10 37 12 38 Supply Air Temperature C F 12
46. Consult factory for recommendations Refer to Tab 6j for standard air flow 6 6 Liebert CRV PD 273529 10 09 2010 Specifications Water cooled Tab 6d Water cooled 60 Hz 60 Hz 65 F 18 3 C EWT 105 F 40 6 C 75 F 23 9 C EWT 105 F 40 6 C 85 F 29 4 C EWT 110 F 43 3 C Cond Temp Cond Temp Cond Temp CRO35RW CRO20RW CRO35RW CRO20RW CRO35RW CRO20RW 105 F DB 71 F WB 40 6 C DB 21 6 C WB 17 RH Total kW BTU H 42 9 146418 26 88738 42 9 146418 26 88738 42 2 144029 25 5 87032 Sensible kW BTU H 42 9 146418 26 88738 42 9 146418 26 88738 42 2 144029 25 5 87032 Flow Rate l s GPM 0 669 10 60 0 408 6 47 1 05 16 64 0 638 10 11 1 483 23 51 0 896 14 20 Pressure Drop kPa ft H20 29 9 70 19 6 36 67 22 42 44 14 72 128 42 82 82 27 43 Unit Power Imput kW BTU H 9 42 32150 5 98 20410 9 42 32150 5 98 20410 9 97 34028 6 29 21468 Heat rejection kW BTU H 52 2 178159 31 9 108875 52 5 179183 31 9 108875 52 1 177817 31 8 108533 Supply Air Temperature C F 16 2 61 2 21 69 8 16 2 61 2 21 69 8 16 6 61 9 21 3 70 3 100 F DB 69 5 F WB 37 8 C DB 20 8 C WB 20 RH Total kW BTU H 41 139933 24 8 84642 41 139933 24 8 84642 40 3 137544 24 4 83277 Sensible kW BTU H 41 139933 24 8 84642 41 139933 24 8 84642 40 3 137
47. H 1 26 4300 1 26 4300 Flow Rate I s GPM 1 01 16 01 0 89 14 11 0 57 9 03 Pressure Drop kPa ft H2O 38 12 71 13 4 35 Supply Air Temperature C F 12 1 53 8 15 59 0 Liebert CRV PD 273529 10 09 2010 6 13 Specifications CW 72 F DB 60 1 F WB 22 2 C DB 15 6 C WB 50 RH Total kW BTU H Sensible kW BTU H Unit Power Imput kW BTU H Flow Rate I s GPM Pressure Drop kPa ft H2O Supply Air Temperature C F 20 9 20 9 1 26 0 89 30 12 11332 18 3 62458 18 1 61775 15 1 11332 18 3 62458 18 1 61775 15 1 4300 128 am 047 10 04 9 538 EX 72 F DB 58 7 F WB 22 2 C DB 14 8 C WB 45 RH Total kW BTU H Sensible kW BTU H Unit Power Imput kW BTU H Flow Rate I s GPM Pressure Drop kPa ft H2O Supply Air Temperature C F 20 9 20 9 1 26 0 89 30 12 71332 18 2 62117 18 1 61775 15 1 71332 18 2 62117 18 1 61775 15 1 4300 1 26 4300 1 26 4300 1 26 14 11 0 57 9 03 0 77 12 20 0 47 10 04 13 4 35 23 7 69 9 53 6 13 4 56 1 13 5 56 3 15 Cooling capacities are net values All capacities are nominal values actual performance will be 3 596 NOTE Data rated with Standard MERV 8 G4 filter Some options or combinations of options may result in reduced airflow Consult factory for recommendations Refer to Tab 6j for standard air flow Liebert CRV PD 273529 51536 51536 4300 7 45 3 01 59 2 51536 51536 4300 7 45 3 01 59 0 10 09 2010 Specifications C
48. H Precision Cooling For Business Critical Continuity M Liebert CRV 50 60 Hz 20 40 kW A W C Versions q PRODUCT DOCUMENTATION Ze E EMERSON Network Power Contents Contents Product Description Application of Liebert CRV Liebert CRV Operation Microprocessor Controls Specifications Heat Rejections Installation drawings Refrigerant Hydraulic and Electrical Connections Refrigeration amp Hydraulic Circuits The Quality Management System of Emerson Network Power S r l High Performance Air Conditioning has been approved by Lloyd s Register Quality Assurance to the standard ISO 9001 2008 The product conforms to European Union directives 2006 42 EC 2004 108 EC 2006 95 EC 97 23 EC Units are supplied complete with a Test Certificate Conformity Declaration and Component List Liebert CRV units are CE marked as they i comply with the European directives C concerning mechanical electrical electromagnetic and pressure equipment safety Liebert CRV PD 273529 10 09 2010 0 0 Contents General Overview 1 1 Product Description 2 1 First check 2 2 Selection of Lieber CRV unit s Application of Liebert CRV 2 3 Operating limits 2 4 Positioning units placement 2 5 Temperature sensors 3 Liebert CRV 3 1 Standard features 3 2 Optional features 3 3 Digit nomenclature 4 Operation 4 1 Cooling 4 2 Heating 4 3 Dehum
49. TU H 33 4 113994 19 9 67919 Sensible kW BTU H 30 3 103414 19 9 67919 Unit Power Imput kW BTU H 11 12 37953 6 73 22969 Heat rejection kW BTU H 44 5 151879 26 6 90786 Supply Air Temperature C F 10 3 50 5 12 2 54 0 80 F DB 66 5 F WB 26 7 C DB 19 2 C WB 50 RH Total kW BTU H 35 6 121503 21 3 72697 Sensible kW BTU H 26 88738 17 3 59045 Unit Power Imput kW BTU H 11 11 37918 6 79 23174 Heat rejection kW BTU H 46 7 159387 28 1 95905 Supply Air Temperature C F 12 4 54 3 14 3 57 7 75 F DB 62 5 F WB 23 9 C DB 16 9 C WB 50 RH Total kW BTU H 33 4 113994 19 9 67919 Sensible kW BTU H 25 7 87714 16 8 57338 Unit Power Imput kW BTU H 11 12 37953 6 73 22969 Heat rejection kW BTU H 44 52 151947 26 63 90888 Supply Air Temperature C F 10 1 50 2 12 53 6 75 F DB 61 F WB 23 9 C DB 16 1 C WB 45 RH Total kW BTU H 32 4 110581 19 4 66212 Sensible kW BTU H 27 1 92492 17 7 60410 Unit Power Imput kW BTU H 11 12 37953 6 71 22901 Heat rejection kW BTU H 43 52 148534 26 11 89113 Supply Air Temperature C F 9 4 48 9 11 3 52 3 72 F DB 60 1 F WB 22 2 C DB 15 6 C WB 50 RH Total kW BTU H 31 8 108533 19 64847 Sensible kW BTU H 25 2 86008 16 4 55973 Unit Power Imput kW BTU H 11 12 37953 6 7 22867 Liebert CRV PD 273529 10 09 2010 6 3 Specifications Air cooled Heat rejection kW BTU H 42 92 146486 25 7 87714 Supply Air Temperature C F 8 8 47 8 10
50. W Tab 6h CW 50 Hz CRO40RC CW 50Hz 7 C 44 6 F EWT 5 C 9 F 10 C 50 F EWT 5 C 9 F 13 C 55 4 F EWT 5 C 9 F Water Rise Water Rise Water Rise 40 C DB 104 F 20 RH Total kW BTU H 51 1 174404 44 9 153244 40 3 137544 Sensible kW BTU H 49 7 169626 44 9 153244 40 3 137544 Unit Power Imput kW BTU H 1 26 4300 1 26 4300 1 26 4300 Flow Rate I s GPM 2 44 38 67 2 14 33 92 1 93 30 59 Pressure Drop kPa ft H20 184 61 56 144 48 18 116 38 81 Supply Air Temperature C F 13 1 55 6 15 7 60 3 18 3 64 9 37 C DB 98 6 F 24 RH Total kW BTU H 47 9 163483 40 4 137885 35 7 121844 Sensible kW BTU H 45 153585 40 4 137885 35 7 121844 Unit Power Imput kW BTU H 1 26 4300 1 26 4300 1 26 4300 Flow Rate I s GPM 2 28 36 14 1 93 30 59 1 71 27 10 Pressure Drop kPa ft H2O 163 54 53 119 39 81 94 31 45 Supply Air Temperature C F 12 9 55 2 15 5 59 9 18 1 64 6 35 C DB 95 F 26 RH Total kW BTU H 43 7 149148 37 4 127646 32 7 111605 Sensible kW BTU H 42 143346 37 4 127646 32 7 111605 Unit Power Imput kW BTU H 1 26 4300 1 26 4300 1 26 4300 Flow Rate I s GPM 2 08 32 97 1 79 28 37 1 56 24 73 Pressure Drop kPa ft H2O 139 46 50 103 34 46 80 26 76 Supply Air Temperature C F 12 8 55 0 15 3 59 5 17 9 64 2 32 C D
51. as O Fabricante declara que este produto est em conformidade com as directivas Europeias Tillverkare f rs krar harmed att denna produkt verensst mmer med Europeiska Uniones direktiv De Fabrikant verklaart dat dit produkt conform de Europese richtlijnen is Vaimistaja vakuuttaa t ten ett tama tuote tayattaa seuraavien EU direktiivien vaatimukset Produsent erkl rer herved at dette produktet er i samsvar med EU direktiver Fabrikant erkl rer herved at dette produkt opfylder kravene i EU direktiverne O Kaxaokevaon jc nover t TO nap v npol v siva xkavaokevaou vo avupova ue tis o nyies tng E E 2006 42 EC 2004 108 EC 2006 95 EC 97 23 EC Ensuring the High Availability Of Mission Critical Data and Applications Emerson Network Power a business of Emerson NYSE EMR is Locations the global leader in enabling Business Critical Continuity Emerson Network Power Headquarters EMEA from grid to chip for telecommunication networks data centers Via Leonardo Da Vinci 16 18 health care and industrial facilities Emerson Network Power Zona Industriale Tognana provides innovative solutions and expertise in areas including 35028 cer ns ay AC and DC power and precision cooling systems embedded Fax 39 049 5841 257 computing and power integrated racks and enclosures power marketing emea emersonnetworkpower com witching an ntrols monitorin n nnectivity All solution switehing and controls Monitoring and connecti
52. ating Use field supplied Class 1 wiring 7 Customer alarm inputs Terminals for field supplied normally closed contacts having a minimum 75VA 24VAC rating between terminals 61 amp 63 Use field supplied Class 1 wiring 8 General alarm On any alarm normally open dry contact is closed across terminals 400 401 for remote indication 2 AMP 24VAC max load Use Class 1 field supplied wiring 9 Warning alarm On any alarm normally open dry contact is closed across terminals 300 301 for remote indication 2 AMP 24VAC max load Use Class 1 field supplied wiring 10 Compressor motor on On any call for compressor operation normally open dry contact is closed across terminals 72 amp 73 2 AMP 24VAC max load Use Class 1 field supplied wiring 11 Fan motor on On any call for fans operation normally open dry contact is closed across terminals 70 amp 71 2 AMP 24VAC max load Use Class 1 field supplied wiring g OPTIONAL ELECTRICAL CONNECTIONS 12 Smoke sensor alarm with smoke sensor option The smoke sensor is factory installed and senses the delivery air it is connected across terminals 61 62 and send a visual and an audible alarm This smoke sensor is not intended to function as or replace any room smoke detection system that may be required by local or national codes 1 AMP 24VAC max load Use Class 1 field supplied wiring 14 Condensate alarm with condensate pump option On pump high water indication normally ope
53. ble kW BTU H 24 81912 15 2 51878 24 81912 15 2 51878 Flow Rate Us GPM 1 232 19 53 0 728 11 54 1 33 21 08 0 786 12 46 Pressure Drop kPa ft H20 95 31 78 60 20 07 113 37 80 72 24 09 Unit Power Imput kW BTU H 13 11 44744 7 86 26826 13 11 44744 7 86 26826 Heat rejection kW BTU H 42 1 143687 25 2 86008 42 1 143687 25 2 86008 Supply Air Temperature C F 9 4 48 9 11 5 52 7 9 4 48 9 11 5 52 7 72 F DB 58 7 F WB 22 2 C DB 14 8 C WB 45 RH Total kW BTU H 28 3 96588 16 9 57680 28 3 96588 16 9 57680 Sensible kW BTU H 25 2 86008 16 1 54949 25 2 86008 16 1 54949 Flow Rate Us GPM 1 202 19 05 0 711 11 27 1 298 20 57 0 767 12 16 Pressure Drop kPa ft H20 90 30 11 58 19 40 108 36 13 69 23 08 Unit Power Imput kW BTU H 13 11 44744 7 84 26758 13 11 44744 7 84 26758 Heat rejection kW BTU H 41 3 140957 24 7 84301 41 3 140957 24 7 84301 Supply Air Temperature C F 8 8 47 8 10 8 51 4 8 8 47 8 10 8 51 4 Record the power consumption of the fan at various operating percentages min 100 Cooling capacities are net values All capacities are nominal values actual performance will be 5 NOTE Data rated with Standard MERV 8 G4 filter Some options or combinations of options may result in reduced airflow Consult factory for recommendations Refer to Tab 6j for standard air flow 6 12 Liebert CRV PD 273529 10 09 2010 Specifications CW 6 4 Performances CW units Tab 6g CW 60 Hz CRO40R
54. c controls The need to change the canister is indicated on the iCOM display The humidifier is designed to operate with water conductivity from 125 500 50Hz or 330 670 60Hz microS cm System automatically fills and drains as well as maintains the required water level based on conductivity An air gap within the humidifier assembly shall prevent backflow of the humidifier supply water The humidifier is removable from the rear of the cabinet ELECTRIC REHEAT The electric reheat coils are low watt density 304 stainless steel fin tubular construction protected by thermal safety switches and controlled in one stage INTELLISLOT WEB CARD IS WEBL Provides 10 100 baseT Ethernet connectivity for unit monitoring and management The supported management interfaces include SNMP for Network Management Systems and HTTP for web page viewing INTELLISLOT 485 CARD IS 485L Provides RS 485 Modbus network connectivity to Building Management Systems for unit monitoring and management FILTER The optional filters are two deep pleated 4 102 mm rated MERV11 following ASHRAE 52 2 1999 60 65 by ASHRAE 52 1 1992 or F5 following EN779 located within the cabinet and accessible from the rear of the unit A filter clog alarm is included REHEAT HUMIDIFIER LOCKOUT Includes the necessary relays to disable the reheat and humidifier from an external 24 volt signal ONE 1 EXTRA COMMON ALARM CONTACT Provides the customer with a total of two sets of normally open n
55. communication card housings are included as standard 2T RACK TEMPERATURE SENSORS Consist of a vented case with two temperature probes Up to 10 2T housings 20 temperature probes can be connected to a Liebert CRV One 2T housing and both sensor probes are to be attached to a rack the cooling unit is conditioning The sensors provide real time direct feedback to the cooling unit to optimize the amount of cooling and airflow required increasing energy efficiency and ensuring proper rack inlet air temperatures The sensor data can also be reported to remote BMS and monitoring systems The sensor network consists of one CAN wire leaving the cooling unit and connecting to a 2T sensor Each remaining 2T sensor is connected to the previous sensor often referred to as a daisy chain configuration REMOTE SHUTDOWN TERMINAL Provides the customer with a location to remotely shut down the unit COMMON ALARM CONTACT Provides the customer with a set of normally open n o contacts for remote indication of unit alarms CABINET The exterior steel panels are custom powder coated to protect against corrosion The double wall constructed side panels separate the 1 2 2 0 lb ft insulation from the airstream The unit is mounted on casters for quick installation and provided with leveling feet The perforated inlet and outlet panels have 8196 open area and the rear door utilizes a Kn rr rack style handle and hinges SERVICE ACCESS All service and maintenance is
56. d Use Class 1 field supplied wiring 13 Reheat and humidifier lockout Remote 24VAC required at terminals 82 amp 83 for lockout of reheat and humidifier 14 Condensate alarm with condensate pump option On pump high water indication normally open dry contact is closed across terminals 88 amp 89 for remote indication 1 AMP 24VAC max load Use Class 1 field supplied wiring 15 Common Alarm On any alarm one additional normally open dry contact is closed across terminals 94 amp 95 for remote indication 1 AMP 24VAC max load Use Class 1 field supplied wiring 16 LiquiTect shutdown and dry contact On LiquiTect activation normally open dry contact is closed across terminals 58 amp 59 for remote indication LiquiTect sensor ordered separately 1 AMP 24VAC max load Use Class 1 field supplied wiring NOTE Refer to specification sheet for total unit full load amps wire size amps and max overcur rent protective device size Liebert CRV PD 273529 10 09 2010 Refrigeration amp Hydraulic Circuits Fig 10a LIEBERT CRV CRO20RA CRO35RA lt on CR035 only OF 13 e dU aX oh eh tg PX T X K c Q O external on CR020 15 o m to disconnect for bottom connections EXTERNAL TO CRV UNIT POS DESCRIPTION POS DESCRIPTION 1 Compressor 11 Check valve 2
57. densers Liebert HCR 50Hz CE mark with the air conditioners Liebert CRV 50Hz CE mark according to the indicated max external air temperature Connecting a too large capacity condenser 5096 higher than the nominal capacity indicated in Tab 7 a to the HPM unit can cause malfunctioning and incorrect condenser regulation at low ambient temperature e g in cold season The above indications are approximate and must be checked on the basis of other specific operating conditions For operating conditions other than those indicated in the table refer to the New Hirating calculation software and to the Liebert HCR service manual Tab 7b Technical data and performance of air cooled condenser Liebert HCH Total Heat Nol c i Refrigerant Rejection i oise urren connections Power Air KK Input G Model supply THR Volume ia Power E in mm Dimensions Weight V Ph Hz R410A m3 h 5m tf kW A Gas line Liquid line mm kg kW SES mm mm W 1340 HCR33 230 1 50 32 2 7400 50 0 0 55 2 5 2 6 16 16 D 831 75 H 1112 W 2340 HCR43 230 1 50 46 0 17000 53 0 1 10 5 0 5 2 16 16 D 831 92 H 1112 W 2340 HCR51 230 1 50 52 0 17000 53 0 1 10 5 0 5 2 22 16 D 831 93 H 1112 W 2340 HCR59 230 1 50 62 0 15600 53 0 1 10 5 0 5 2 22 16 D 831 102 H 1112 W 3340 HCR76 230 1 50 78 0 25500 55 0 1 65 7 5 7 8 22 16 D 831 136 H 1112 W 3340 HCR88 230 1 50 92 0 23400 55 0 1 65 7 5 7 8 22 16 D 831 165 H 1112
58. duce subcooling variations due to direct wind exposure very important to have a good subcooling control For all exceptions contact the Liebert Sales Representative Outdoor temperature higher limit This 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 Once the condensing pressure rises at or above the 34 bar 493 psi value the capacity of the compressor is re duced by 20 compared to the requested capacity This because ICOM control tries to maintain the unit s operab ility reducing the cooling power of digital scroll Relative position room unit vs 50 Hz remote condenser From unit to condenser max distance equivalent length m ft 1 50 330 From unit to condenser max geodetic height m ft 1 2 Max above 30 100 Max below 8 26 Requirements Pipe diameter 1 see the User Manual Oil traps on vertical line of gas refrigerant m ft every 6 20 For lenght higher than 30m 98ft condenser oversized 15 1 For more details see User Manual 2 Positive difference in height condenser above conditioner Negative difference in height condenser below conditioner 2 3 Liebert CRV PD 273529 10 09 2010 Application of Liebert CRV Relative position room unit vs 60 Hz remote condenser From unit to condenser max
59. e between 33 C and 37 C Please refer also to point 2 2 3 Air Flow Requirements e When N X typical N 1 redundancy is required use more units so if any of the unit s fail the remaining unit s will cover the heat load Always consider the layout of the room when defining number of units see chapter 2 4 Positioning unit placement 2 2 3 Air Flow Requirements Liebert CRV is optimized to provide precision cooling for IT equipment with temperature raise delta T of cooling air passing through the equipment around 15 to 20 degrees Celsius or higher Such temperature raise is typical for Blade servers and standard pizza servers For applications with very low delta T around 10 degrees Celsius typical for old fashion servers it is necessary to de rate cooling capacity of the Liebert CRV due to higher air flow equipment Liebert CRV PD 273529 10 09 2010 2 2 Application of Liebert CRV In case of application with Cold Aisle Containment Kn rr CoolFlex it is necessary to carefully investigate the air flow through IT equipment and to define number of Liebert CRV units in order to provide at least 5 more airflow excluding redundant unit s Otherwise there may occur a situation with negative pressure in the CoolFlex containment and hot air possibly leaking inside the containment 2 3 Operating limits The units are designed to operate within working ranges These limits are referred to new machines or to those that have been correctly i
60. e manual Liebert HPD Dry Coolers Our Liebert HPD Dry Coolers are built with a copper aluminium cooling coil and axial fan s The main data on Dry Coolers is shown in the following table Percentage of ethylene glycol mixed with water Note In the closed circuits to avoid water freezing in the cold seasons it is strictly recommended to mix water with ethylene glycol The suggested percentage is given in the Diagram For safety reason calculate the percentage at least at 5 C below the minimum ambient temperature It is also recommended to check periodically the mixture in case of leackage of the circuit the sanitary water used at compensation reduces progressivelythe glycol percentage and 0 5 10 15 20 25 P increases the freezing point of the Freezing temperature C mixture in weight 96 in volume Features and benefits Liebert HPD Dry Coolers are the new range of liquid coolers able to cover rated heat exchange capacities from 8 to 400 kW They excel above all for their efficiency versatility and reliability thanks to the following features e possibility of installation with horizontal or vertical air flow with simple operations on site with the same model of Dry Cooler without needing any wiring or re wiring inside the unit e modulating fan speed regulator with phase optional for a continuous modulation of the fan speed installed on the machine wired and factory set thus making
61. electrical heater to re stabilize the initial temperature 4 4 Humidification optional e The humidifier creates steam which is distributed into the air via the steam distribution pipe Liebert CRV PD 273529 10 09 2010 Microprocessor Controls 5 1 iCom Control Liebert CRV models are controlled by iCOM Medium Board Fig 10 The control board is housed in the electrical panel and it is connected to the remote display to be installed in the container room connection cable is included e The standard user interface is a graphical display 128 x 64 pixels backlit showing parameter values and the relevant symbols codes in a tree menu It features navigation push buttons and status leds Self explanatory icons are used for the menu layout of the display e Status Report of the latest 400 event messages of the unit e Graphic Data Records for temperature and humidity e Both high and low priority alarms activate a visual indicator and buzzer e Input for remote on off and volt free contacts for simple remote Fig 5 a HAMRANES JADI am reen monitoring of low and high priority alarms high low temperature high low refrigerant pressure fan control failure compressor control failure and others are available e LAN management functions provided as standard include stand by in case of failure of the unit in operation the second one starts automatically and automatic rotation e All settings are protected
62. er in Business Critical Continuity HI AC Power HI Embedded Computing HI Outside Plant HI Rack amp Integrated Cabinets HI Connectivity HI Embedded Power HI Power Switching amp Control HI Services HI DC Power HI Monitoring Wii Precision Cooling HI Surge Protection Emerson Network Power and the Emerson Network Power logo are trademarks and service marks of Emerson Electric Co 92008 Emerson Electric Co
63. g water flow rates and temperatures Cooling capacity is regulated by closing off the chilled water flow The maximum differential pressure across the closed valve is 175 kPa 25 4 PSI Maximum system pressure is 230 PSI 1586 kPa INTELLISLOT WEB CARD IS WEBL Provides 10 100 baseT Ethernet connectivity for unit monitoring and management The supported management interfaces include SNMP for Network Management Systems and HTTP for web page viewing INTELLISLOT 485 CARD IS 485L Provides RS 485 Modbus network connectivity to Building Management Systems for unit monitoring and management FILTER The optional filters are two deep pleated 4 102 mm rated MERV11 following ASHRAE 52 2 1999 60 65 by ASHRAE 52 1 1992 or F5 following EN779 located within the cabinet and accessible from the rear of the unit A filter clog alarm is included REHEAT HUMIDIFIER LOCKOUT Includes the necessary relays to disable the reheat and humidifier from an external 24 volt signal ONE 1 EXTRA COMMON ALARM CONTACT Provides the customer with a total of two sets of normally open n o contacts for remote indication of unit alarms LIQUI TECT SENSOR Is a solid state water sensor that has no moving parts and is hermetically sealed to keep out dust and dirt When the sensor detects the presence of moisture the alarm system is activated Liebert CRV PD 273529 10 09 2010 Liebert CRV 3 3 Digit nomenclature The unit is fully defined by twenty five digits B DD 6
64. generally advised to distribute the load as much possible uniformly across the rack height except for the rack closest to the Liebert CRV unit where it is suggested to have the higher density load in the bottom and central part of the rack For more details refer to following details or contact Liebert Sales Representative Liebert CRV PD 273529 10 09 2010 Application of Liebert CRV 2 4 4 Placement in the row of racks For single row application with one Liebert CRV unit it is not preferred to put the unit in the middle of the row because of possible hot spots at top part of racks unless in combination with CoolFlex or in application with more Liebert CRV units The best approach is to place the Liebert CRV at the end of the row resulting into much better air distribution Please refer to the sample case study comparing the same serveroom with different Liebert CRV position The CFD Computational fluid dynamics analysis results are shown in height 1 8m off the floor for all following cases Good approach R V WM End of row Preferred Not advised approach AN mm 2 4 2 Number of racks length of the row Standard application with one Liebert CRV unit is with 2 6 racks The exact number of racks depends on size of Liebert CRV unit used and heat load per rack Whenever applying more than 6 racks for one CRV or Heat load more than 10kW per rack contact Liebert sales representative 2 6 racks 0 6 5 m lt gt
65. he presence of moisture the alarm system is activated Chilled water models DUAL FL OAT CONDENSATE PUMP It has a capacity of 6 GPM 22 7 l min at 30ft 9m head Pump is complete with integral primary and secondary float switches pump motor assembly and reservoir The secondary float shall send a signal to the local alarm and shut down the unit upon high water condition HUMIDIFIER A steam generating canister humidifier is factory installed in the cooling unit and is operated by the iCOM control system It is complete with disposable cylinder all supply and drain valves steam distributor and electronic controls The need to change the canister is indicated on the iCOM display The humidifier is designed to operate with water conductivity from 125 500 50Hz or 330 670 60Hz microS cm System automatically fills and drains as well as maintains the required water level based on conductivity An air gap within the humidifier assembly shall prevent backflow of the humidifier supply water The humidifier is removable from the rear of the cabinet ELECTRIC REHEAT The electric reheat coils are low watt density 304 stainless steel fin tubular construction protected by thermal safety switches and controlled in one stage 2 W AY MODULATING VALVE A 2 way modulating valve controls the chilled water flow passing through the cooling coil The iCOM control manages the valve actuator movement in order to provide the desired amount of cooling for various enterin
66. hic Display Microcontroller Coldfire 32Mbit Ethernet network connectors 2 RJ45 sockets for unit in LAN remote display CAN bus connectors 2 RJ12 sockets Power supply sseessssse via CAN bus or external 12Vdc supply Liebert CRV PD 273529 10 09 2010 6 1 Tab 6a Air cooled 50 Hz Specifications Air cooled Performances air cooled Cond Temp 45 C 113 F 50 Hz CRO35RA CRO20RA 40 C DB 104 F 20 RH Total kW BTU H 38 7 132083 24 3 82936 Sensible kW BTU H 38 7 132083 24 3 82936 Unit Power Imput kW BTU H 9 59 32731 6 12 20888 Heat rejection kW BTU H 48 29 164814 30 42 103823 Supply Air Temperature C F 18 1 64 6 21 8 71 2 37 C DB 98 6 F 24 RH Total kW BTU H 36 8 125598 23 1 78840 Sensible kW BTU H 36 8 125598 23 1 78840 Unit Power Imput kW BTU H 9 59 32731 6 1 20819 Heat rejection kW BTU H 46 39 158329 29 2 99660 Supply Air Temperature C F 16 4 61 5 19 8 67 6 35 C DB 95 F 26 RH Total kW BTU H 35 8 122185 22 3 76110 Sensible kW BTU H 35 2 120138 22 3 76110 Unit Power Imput kW BTU H 9 58 32697 6 08 20751 Heat rejection kW BTU H 45 38 154882 28 38 96861 Supply Air Temperature C F 15 4 59 7 18 5 65 3 32 C DB 89 6 F 29 RH Total kW BTU H
67. idification 4 4 Humidification optional 5 1 iCom Control 5 2 CDL Graphic Display option Liebert CRV PD 273529 Microprocessor Controls 10 09 2010 Specifications 6 1 Performances air cooled 6 2 Performances water cooled 6 3 Performances glycol cooled 6 4 Performances CW units 6 5 Electric data 6 6 Sound data Heat Rejections 7 1 Coupling of Liebert CRV A type 50Hz CE mark air conditioning units with remote air cooled condensers Liebert HCR 7 2 Coupling of Liebert CRV W type 50Hz CE mark water cooled air conditioning units with remote Liebert HPD Dry Coolers Installation drawings Refrigerant Hydraulic and Electrical Connections 9 1 Electricalfield connections descriptions 50 Hz 9 2 Electrical field connections descriptions 60 Hz Refrigeration amp Hydraulic Circuits Product Description 1 1 Product Description The Liebert CRV is a range of full featured compressorized air water glycol cooled and chilled water cooling units to be installed within a row of high density computing racks in a not aisle cold aisle configuration Air heated by room equipment enters the unit from the hot aisle is filtered cooled and conditioned and is returned to the cold aisle Supply air flow direction can be easily modified to the left side or to the right side or to both directions so it may be placed between the racks or on the end of the row The Liebert CRV provide
68. igh dehumidification is required for example in combination with High Density cooling Liebert XD system it is suggested to use the Liebert CRV also in combination with Liebert HPM Floor mount units 2 1 4 Hot Cold aisle configuration A best practice is to use rows of equipment racks in an alternating arrangement of cold aisles and hot aisles In the cold aisle the equipment racks are arranged face to face so the cold air discharged from the Liebert CRV unit s is drawn into the front of the servers and exhausted out through the rear into the hot aisles Hot aisles are literally hot because the objective of the alternating cold and hot aisle design is to separate the source of cooling air from hot air discharge which returns to the Liebert CRV unit s Therefore hot and cold aisle should be separated otherwise there would be a mix of hot and cold air and thereby lower the temperature of the air returning to the CRV units which reduces their usable capacity Hot aisle Fig 2a Example of high density installation with cold aisle and hot aisle alternation 2 1 2 Combination with Liebert XD Liebert CRV is optimized for maximum cooling capacity in a minimal footprint and it maximizes net sensible cooling capacity used for servers heat load dissipation Liebert CRV PD 273529 10 09 2010 Application of Liebert CRV When ever Liebert CRV shall be combined with Liebert XD in order to have the maximum heat load dissipation capabil
69. ity combination also with Liebert HPM floor mount units may be required in order to have the proper humidity control Please refer to suitability map below Tab 2a Suitability map of Liebert CRV for Liebert XD system Liebert XD unit XDC XDP XDP Heat rejection DX cooled CW 7 12 C CW 10 15 C CR20 limited limited applicable CR35 applicable applicable applicable CR40 CW 7 12 C limited applicable applicable CR40 CW 10 15 C not applicable not applicable applicable Important Notes Consider this map only when Liebert CRV is the only unit managing humidity control in the server room In case there is other system such as CRAC e g Liebert HPM Liebert DS Liebert Delux etc or Air Handling system able to control humidity in the server room and to keep dew point under level required by Liebert XD system there are no limitations for application of the Liebert CRV together with Liebert XD Liebert CRV may not be able to fully satisfy humidity requirements of Liebert XD system Suitability to be dis cussed with Liebert sales representative 2 1 3 Combination with other Cooling systems Liebert CRV may be combined with other cooling systems such as underflow CRAC units e g retrofit of current installation until there is proper setting of both systems without influencing each other Otherwise there is a risk of cycling or increased power consumption of both system in worst case causing malfunction of
70. l 2 way valve 10 2 Liebert CRV PD 273529 10 09 2010 Refrigeration amp Hydraulic Circuits Fig 10c LIEBERT CRV CRO40RC CHILLED WATER INLET 3 top connections only with optional 2 way valve CHILLED WATER OUTLET top connections CHILLED WATER OUTLET bottom connections CHILLED WATER INLET bottom connections POS Components POS Components Chilled water cooling coil 4 Valve fittings 3 port water valve 5 Blind disk only with optional 2 way valve Air bleeding valve 6 NTC inlet water sensor Liebert CRV PD 273529 10 09 2010 10 3 A A ZE Fabbricante Manufacturer Hersteller Fabricant Fabricante y Fabricante Tillverkare Fabrikant Valmistaja Produsent E M E RSON Fabrikant Kataorevaotnt Producent Emerson Network Power S r l Zona Industriale Tognana Via Leonardo da Vinci 16 18 35028 Piove di Sacco Padova Italy II Fabbricante dichiara che questo prodotto conforme alle direttive Europee The Manufacturer hereby declares that this product conforms to the European Union directives Der Hersteller erkl rt hiermit dass dieses Produkt den Anforderungen der Europ ischen Richtlinien gerecht wird Le Fabricant d clare que ce produit est conforme aux directives Europ ennes El Fabricante declara que este producto es conforme a las directivas Europe
71. let air and relays this information to the control system e The air is treated and then blown out of the unit e The control system compares the relayed information to the set point and proportional band values programmed into its memory itthen commands the air conditioner to treat the air as follows see also Control manual 4 1 Cooling e Direct expansion mode DX The compressor is started and the cold refrigerant flows through the evaporator thus cooling the air passing over it For compressor operation see Control manual e Chilled water mode CW The three ways valve is opened and the chilled water flows through the coil thus cooling the air passing over it For valve operation see Control manual 4 2 Heating e Electrical heating optional the heating elements heat the air passing over them There is one heating steps activate in case of dehumidification if supply air temperature is too low for heating logic see Control manual 4 3 Dehumidification e DX mode The compressors starts and either the air flow or the evaporator surface is reduced increasing modulation capacity of compressor thereby causing dehumidification refer also to Control manual e N B If during dehumidification the ambient temperature drops below a specified level dehumidification will be stopped if necessary see LOW LIMIT intervention in Control manual In dehumidification mode the air after passing over the coil it s reheated if needed by
72. n speed is variable and automatically regulated by the iCOM control through all modes of operation Each fan has a dedicated motor and speed controller which provides a level of redundancy The fans push air through the coil and are located on the rear panel of the unit 3 W AY MODULATING VALVE A 3 way modulating valve controls the chilled water flow passing through the cooling coil The iCOM control manages the valve actuator movement in order to provide the desired amount of cooling for various entering water flow rates and temperatures Cooling capacity is regulated by bypassing chilled water around the coil The maximum differential pressure across the closed valve is 175 kPa 25 4 PSI Maximum system pressure is 230 PSI 1586 kPa SUPPLY AIR BAFFLE A field adjustable modular supply air baffle is located in the discharge air stream It can be quickly and easily reconfigured to redirect airflow The angles of the vanes have been optimized to effectively distribute air to heat generating equipment in a wide variety of applications iCOM CONTROL SYSTEM The Liebert CRV is controlled by the iCOM Control System The standard user interface is the Large Graphical Display 320x240 pixels backlit which presents system information and allows all parameters to be viewed and adjusted It features push button navigation operational status LEDs and a 3 level password protection system Unit to Unit communication with other Liebert CRVs and two IntelliSlot
73. n dry contact is closed across purple wire for remote indication install inside the box near the pump 1 AMP 24VAC max load Use Class 1 field supplied wiring OPTIONAL LOW VOLTAGE TERMINAL PACKAGE CONNECTIONS 15 Flooding alarm liquistat The flooding alarm detects the presence of water and activate an alarm The sensor is connect across terminals 105 amp 106 and up to 5 sensors can be connected to the same flooding alarm device to control many points in the bottom of the unit Liebert CRV PD 273529 10 09 2010 Refrigerant Hydraulic and Electrical Connections Fig 9e Electrical board layout 60 Hz UNIT TOP Qeon BEE a cl OVERLOAD PROTECTORS CONTACTORS 55 58 58 50 60 61 70 i 80 81 83 88 89 91 2 83 76 76 94 95 UNIT BASE 250 64mm K O 1 13 29mm K O Liebert CRV PD 273529 10 09 2010 9 6 Refrigerant Hydraulic and Electrical Connections 9 2 Electrical field connections descriptions 60 Hz STANDARD ELECTRICAL CONNECTIONS 1 High voltage entrance through the bottom of the electric panel 1 38 34 9mm 1 75 44 5mm amp 2 50 64mm diameter concentric knockout 2 Low voltage entrance through the bottom of the electric panel Quantity 2 1 125 28mm diameter knockouts 3 High voltage entrance through the top of the unit 1 38 34 9mm 1 75 44 5mm amp 2 50 64mm diameter concentric knockout 4 Low voltage entrance through the top of the uni
74. ncludes a liquid line filter drier a refrigerant sight glass with moisture indicator an adjustable externally equalized expansion valve and a liquid line solenoid valve COMPRESSOR The compressor is an R 410A scroll type with variable capacity operation from 20 10096 commonly known as a Digital Scroll Compressor solenoid valve shall unload the compressorto provide variable capacity operation The compressor has a suction gas cooled motor vibration isolators internal thermal overloads manual reset high pressure switch RotoLock service valves low pressure and high pressure transducer crankcase heater internal centrifugal oil pump and an operating speed of 3500 RPM 2 60Hz 2900RPM 2 50Hz FAN The unit is equipped with two plug fans direct driven centrifugal fans with backward curved blades and Electronically Commutated DC motors commonly referred to as EC plug fans The fan speed is variable and automatically regulated by the iCOM control through all modes of operation Each fan has a dedicated motor and speed controller which provides a level of redundancy The fans push air through the coil and are located on the rear panel of the unit SUPPLY AIR BAFFLE A field adjustable modular supply air baffle is located in the discharge air stream It can be quickly and easily reconfigured to redirect airflow The angles of the vanes have been optimized to effectively distribute air to heat generating equipment in a wide variety of applications
75. nstalled and serviced The warranty clauses are no longer valid for any possible damage or malfunction that may occur during or due to operation outside the application values For all units From To Temperature 18 C 64 F 40 C 104 F Room air conditions Humidity ratio 5 5 g kg 0 0055 Ib Ib 11 g kg 0 011 Ib Ib Relative humidity 20 60 Storage conditions Temperature 20 C 4 F 50 C 122 F V 10 Power supply tolerances Hz 2 For A units Outdoor temperature lower limit 20 C 4 F To install an air conditioner in places in which external temperature reaches very low values sometime in the year requires some means of control to maintain adequate condensing pressures to ensure proper liquid system opera tion With low temperatures the refrigerant condensates in pipeline and the liquid tends to fulfill the condenser I s mandatory to install the following components 1 NON RETURN VALVE liquid line Install a non return valve in the liquid line directly out of the condenser It doesn t allow the liquid to come back to the condenser that means efficiency loss and dangerous stress for the compressor 2 VARIEX FAN SPEED CONTROL Use Variex fan speed control to regulate the condensing pressure and have a continuous and better subcooling control I s suggested to have 3 HORIZONTAL CONDENSER POSITION The condenser horizontal disposition vertical flow is necessary to re
76. o contacts for remote indication of unit alarms LIQUI TECT SENSOR Is a solid state water sensor that has no moving parts and is hermetically sealed to keep out dust and dirt When the sensor detects the presence of moisture the alarm system is activated Water glycol cooled models DUAL FL OAT CONDENSATE PUMP It has a capacity of 6 GPM 22 7 l min at 30ft 9 m head Pump is complete with integral primary and secondary float switches pump motor assembly and reservoir The secondary float shall send a signal to the local alarm and shut down the unit upon high water condition HUMIDIFIER A steam generating canister humidifier is factory installed in the cooling unit and is operated by the iCOM control system It is complete with disposable cylinder all supply and drain valves steam distributor and electronic controls The need to change the canister is indicated on the iCOM display The humidifier is designed to operate with water conductivity from 125 500 50Hz or 330 670 60Hz microS cm System automatically fills and drains as well as maintains the required water level based on conductivity An air gap within the humidifier assembly shall prevent backflow of the humidifier supply water The humidifier is removable from the rear of the cabinet ELECTRIC REHEAT The electric reheat coils are low watt density 304 stainless steel fin tubular construction protected by thermal safety switches and controlled in one stage 2 W AY MODULATING VALVE A
77. oling Capacity kW approx Nominal Cooling Capacity Digit 16 Enclosure options 1 Enclosure Color Standard 2 Enclosure Color Special Digit 17 Condensate pump L No condensate pump 5 Condensate pump E 18 Option Package Option Package None 1 Option Package 1 humidifier and reheat lockout A compressor jacket amp one additional alarm Option Package Reheat amp Humidifier Lockout Option Package 2 humidifier and reheat lockout amp one additional alarm Option Package 3 compressor jacket U Or Digit 19 Monitoring N Without IS housing D With IS housing no card 1 One IS web card 2 TwolS web cards 3 OnelS485 card 4 TwolS485 cards 5 IS web amp IS 485 cards Digit 20 Sensors Q Sensors None H Sensors High Temperature Firestat S Sensors Smoke Sensor Smokestat F Sensors Smoke amp High Temp Smoke and Firestat Digit 21 Packaging P Packaging PLP and pallet Domestic C Packaging PLP and wooden crate Export S Packaging seaworthy Digit 22 Special Requirements A SFA none X SFA included Digit 23 25 Order Identifier Operation Unit operation is completely automatic The below sequence explains how the unit operates e The air sucked in by the continuously operating fans enters the unit e The air is immediately filtered e The TEMPERATURE sensor or HUMITEMP temperature rel humidity sensor depends on unit configuration verifies the state of the in
78. ollowing sample case study comparing various Liebert CRV positions min 0 65 m Variable lt q X Good approach lt DO Nx Example of an application with gaps on both sides Not advised approach EN EP As you can see on CFD result above it is not advised to place Liebert CRV at the wall in single row layout On the contrary it is not an issue in application with two rows and two or more Liebert CRV units F Good approach HT R V Y E IS vw ES mn V min 0 1 m Note Please refer also to Service area dimensions a Appendix C Liebert CRV PD 273529 10 09 2010 Application of Liebert CRV 2 4 4 Solutions with redundancy Following an example of more complex applications where N 1 redundancy provided Please note the number and size of Liebert CRV units have to be designed in order to achieve required cooling capacity if any of the units fails The other option to easily achieve redundancy is CoolFlex Cold aisle containment see point 5 below LE R F V F Nx Ka Example of an application with one row and N 1 redundancy right side unit failed lt DO LETT F 1 E e ENENNE ER am Example of an application with two rows and N 1 redundancy unit placed right down failed Liebert CRV PD 273529 10 09 2010 2 8 Application of Liebert CRV 2 4 5 Example of applications with CoolFlex When high density IT equipment is used
79. ons in AISI 304 stainless steel for the models with three phase power supply and male gas threaded connections for the single phase models the power supply is 230 V single phase 50 Hz in the ESM models standard noise level and ELM models low noise level 400 V three phase 50 Hz in the EST models standard noise level and ELT models low noise level Electrical boxes and accessories are water proof IP55 The frame is made up of a sturdy structure in galvanized steel totally painted The units are equipped with protection electric board Q with main disconnector and safety device for fan motors The most important technical data are gathered in Tab 5d Tests on thermal performance have been carried out at IMQ laboratories according to the norm UNI EN 1048 2000 at the following special operating conditions Air inlet T 35 C Water inletT 45 C Water outlet T 40 C Sound pressure levels have been evaluated according to the norm EN13487 at a 10 m distance with free field The working pressure depends on the circuit where the Dry Cooler is connected Dry Cooler max working pressure 16 barg All Dry Coolers are CE marked e Conform to the following European Directives Machine Directive 98 37 CE PED 97 23 CEE LVD 2006 95 EC EMC 89 336 CEE EN61000 6 2 EN 61000 6 3 Tab 7c Coupling of Liebert HPD Dry Coolers with Liebert CRV W type 50Hz CE mark air conditioning units Model External tempera
80. per filtration must be field supplied when used on open loop water systems cooling towers etc When operating on a closed loop to avoid undesired ice formation in the wintertime it is advisable to use a water glycol mixture 3 W AY MODULATING VALVE A 3 way modulating valve controls the water glycol flow passing through the brazed plate condenser The iCOM control manages the valve actuator movement in order to maintain the desired condensing temperature for various entering water flow rates and temperatures The maximum differential pressure across the closed valve is 300 kPa 43 5 PSI Maximum system pressure is 230 PSI 1586 kPa SUPPLY AIR BAFFLE A field adjustable modular supply air baffle is located in the discharge air stream It can be quickly and easily reconfigured to redirect airflow The angles of the vanes have been optimized to effectively distribute air to heat generating equipment in a wide variety of applications iCOM CONTROL SYSTEM The Liebert CRV is controlled by the iCOM Control System The standard user interface is the Large Graphical Display 320x240 pixels backlit which presents system information and allows all parameters to be viewed and adjusted It features push button navigation operational status LEDs and a 3 level password protection system Unit to Unit communication with other Liebert CRVs and two IntelliSlot communication card housings are included as standard 2T RACK TEMPERATURE SENSORS Consist of a ven
81. performed through the front and rear of the unit including any component removal No side access is required All electrical and piping connections are made through the top and or bottom of the unit All units are provided with a Superior Service Access Panel to provide additional access FILTER The unit is equipped with two deep pleated 4 filters rated MERV8 following ASHRAE 52 2 1999 4596 by ASHRAE 52 1 1992 or G4 following EN779 located within the cabinet and accessible from the rear of the unit A filter clog alarm is included LOCKING DISCONNECT SWITCH A molded case circuit interrupter disrupts the flow of power to the unit The electric panel high voltage compartment can only be accessed with the switch in the off position Conveniently located behind the iCOM display door for quick access Liebert CRV PD 273529 10 09 2010 Liebert CRV Liebert CRV PD 273529 3 2 Optional features Air cooled models DUAL FL OAT CONDENSATE PUMP It has a capacity of 6 GPM 22 7 l min at 30ft 9 m head Pump is complete with integral primary and secondary float switches pump motor assembly and reservoir The secondary float shall send a signal to the local alarm and shut down the unit upon high water condition HUMIDIFIER A steam generating canister humidifier is factory installed in the cooling unit and is operated by the iCOM control system It is complete with disposable cylinder all supply and drain valves steam distributor and electroni
82. pump CD is ID 20 3 4 1 MPT connected with HD See DP n 1 2 GAS F for top connections 1 2 FPT for top connections Hr Humidifier feed 3 4 GAS F for bottom connections 3 4 FTP for bottom connections Humidifier drain HD ATTENTION With pump CD is ID 22 7 8 1 MPT connected with HD See DP DP Pump drain 1 2 GAS F 1 2 FPT EC HV Electrical supply hight voltage Hole 63 2 1 2 EC L V Electrical supply low voltage Hole 28 1 1 8 TYPICAL 2 PLACES Liebert CRV PD 273529 10 09 2010 Refrigerant Hydraulic and Electrical Connections CRO40RC connections Fig 9c 155 6 1 8 105 4 1 8 REAR VIEW 28 1 1 8 247 5 324 5 9 3 4 12 3 4 TOP n CONNECTIONS 83 440 77 to 225 5 EN 3 1 4 175 16 3146 d 8 7 8 OCW is ei wef J HF HD EE ICW o s lt e 3 a T e N R i F 76 5 98 e 3 3 7 8 A A 55 EC HV CD or DP E 95 S EC LV go k nol SS Sio UT 56 54 55 5 BOTTOM CONNECTIONS 2 3 16 Al Gun 2 3 16 possible with raised floor 83 3 1 4 600 23 5
83. required All electrical and piping connections are made through the top and or bottom of the unit All units are provided with a Superior Service Access Panel to provide additional access FILTER The unit is equipped with two deep pleated 4 filters rated MERV8 following ASHRAE 52 2 1999 4596 by ASHRAE 52 1 1992 or G4 following EN779 located within the cabinet and accessible from the rear of the unit A filter clog alarm is included LOCKING DISCONNECT SWITCH A molded case circuit interrupter disrupts the flow of power to the unit The electric panel high voltage compartment can only be accessed with the switch in the off position Conveniently located behind the iCOM display door for quick access 10 09 2010 3 2 Liebert CRV Chilled water models CW COOLING COIL The evaporator coil has 0 674 m 7 25 ft face area 6 rows deep It is constructed of copper tubes and hydrophilic coated aluminium fins The hydrophilic coating provides superior water carryover resistance Two stainless steel condensate drain pans are provided CHILLED WATER SYSTEM The water circuit includes a 3 way modulating valve The Liebert iCOM control positions the valve in response to room conditions Cooling capacity will be controlled by bypassing chilled water around the coil FAN The unit is equipped with two plug fans direct driven centrifugal fans with backward curved blades and Electronically Commutated DC motors commonly referred to as EC plug fans The fa
84. ressure Drop kPa ft H2O 24 8 03 15 5 02 55 18 40 34 11 37 102 34 12 62 20 74 Unit Power Imput KW BTU H 9 45 32253 5 87 20034 9 45 32253 5 87 20034 10 34130 6 18 21092 Heat rejection KW BTU H 47 9 163483 28 3 96588 47 9 163483 28 3 96588 47 2 161094 28 2 96247 Supply Air Temperature C F 11 5 52 7 15 7 60 3 11 5 52 7 15 7 60 3 11 9 53 4 16 60 8 85 F DB 64 5 F WB 29 4 C DB 18 1 C WB 31 RH Total kW BTU H 37 1 126622 225 76793 37 1 126622 225 76793 36 3 123892 21 8 74403 Sensible kW BTU H 34 8 118772 21 4 73038 34 8 118772 21 4 73038 34 4 117407 21 8 74403 Flow Rate l s GPM 0 589 9 34 0 35 5 55 0 917 14 53 0 542 8 59 1 28 20 29 0 744 11 79 Pressure Drop kPa ft H2O 22 7 36 15 5 02 51 17 06 33 11 04 97 32 45 58 19 40 Unit Power Imput KW BTU H 9 45 32253 5 86 20000 9 45 32253 5 86 20000 10 34130 6 15 20990 Heat rejection KW BTU H 46 5 158705 27 7 94540 46 5 158705 27 7 94540 46 2 157681 27 3 93175 Supply Air Temperature C F 10 4 50 7 14 3 57 7 10 4 50 7 14 3 57 7 10 6 51 1 13 1 55 6 80 F DB 62 8 F WB 26 7 C DB 17 1 C WB 37 RH Total kW BTU H 36 1 123209 21 6 73721 36 1 123209 21 6 73721 35 3 120479 21 71673 Sensible kW BTU H 31 7 108192 20 3 69284 31 7 108192 20 3 69284 31 3 106827 20 68260 Flow Rate l s GPM 0 575 9 11 0 344 5 45 0 894 14 17 0 533 8 45 1 247 19 77 0 737 11 68 Pressure Drop kPa ft H2O 22 7 36 14 4 68 49 16 39 31 10 37 92 30 78 57 19 07 Unit Power Imput KW BTU H 9 46 32287 5 84 19932
85. s all the necessary functions of a standard precision air conditioner including cooling heating humidification dehumidification air filtration condensate management temperature control alarm functions and data communications It is targeted for small and medium datacenters and is optimized for maximum cooling capacity in a minimal footprint Liebert CRV PD 273529 10 09 2010 1 1 Application of Liebert CRV 2 1 First check Before proceeding with Liebert CRV application please make sure the unit selected is suitable for your site Liebert CRV is targeted for small and medium data centers and it is optimized for maximum cooling capacity in a minimal footprint It is designed for high air inlet temperature up to 40 C therefore it is advised to accomplish Hot Cold aisle configuration Liebert CRV is able to modulate the cooling capacity down to minimum 20 of nominal capacity in order to quick adjust to any changing heat load Under this minimum value there is a risk of cycling frequent ON OFF of the compressor affecting the life time Liebert CRV is designed to provide proper control of the room temperature humidity and air filtration The specific design of Liebert CRV is optimized in order to be extremely efficient without providing unnecessary latent cooling dehumidification not specifically required for cooling of IT electronic equipments which enhance the overall cooling system efficiency In particular cases when a h
86. sible kW BTU H 36 2 123551 21 9 74745 36 2 123551 21 9 74745 Flow Rate Us GPM 1 487 23 57 0 896 14 20 1 609 25 50 0 971 15 39 Pressure Drop kPa ft H20 136 45 50 88 29 44 163 54 53 107 35 80 Unit Power Imput kW BTU H 13 08 44642 8 08 27577 13 08 44642 8 08 27577 Heat rejection kW BTU H 49 2 167920 29 9 102049 49 2 167920 29 9 102049 Supply Air Temperature C F 17 4 63 3 21 4 70 5 17 4 63 3 21 4 70 5 95 F DB 67 9 F WB 35 C DB 19 9 C WB 23 RH Total kW BTU H 34 5 117749 20 8 70990 34 5 117749 20 8 70990 Sensible kW BTU H 34 5 117749 20 8 70990 34 5 117749 20 8 70990 Flow Rate Us GPM 1 422 22 54 0 855 13 55 1 539 24 39 0 926 14 68 Pressure Drop kPa ft H20 125 41 82 81 27 10 150 50 18 98 32 79 Unit Power Imput kW BTU H 13 09 44676 8 04 27441 13 09 44676 8 04 27441 Heat rejection kW BTU H 47 5 162118 28 8 98294 47 5 162118 28 8 98294 Supply Air Temperature C F 15 8 60 4 19 6 67 3 15 8 60 4 19 6 67 3 90 F DB 66 2 F WB 32 2 C DB 19 0 C WB 27 RH Total kW BTU H 32 7 111605 19 7 67236 32 7 111605 19 7 67236 Sensible kW BTU H 32 7 111605 19 7 67236 32 7 111605 19 7 67236 Flow Rate Us GPM 1 359 21 54 0 815 12 92 1 47 23 30 0 882 13 98 Pressure Drop kPa ft H20 114 38 14 75 25 09 137 45 83 90 30 11 Unit Power Imput kW BTU H 13 11 44744 7 99 27270 13 11 44744 7 99 27270 Heat rejection kW BTU H 45 7 155974 27 6 94199 45 7 155974 27 6 94199 Supply Air Temperature C F 14 1 57 4 17 7 63 9 14 1 57 4 17
87. stics e g Amperes of installation The specific power of the user installed switch must be lower than 300 000 A x s Prescriptions on the differential relay required to the user e For special places healthcare facilities etc comply with the local regulations e For ordinary places a low sensitivity is suggested 300mA coordinated with the value of the ground heater IEC364 Ra lt 50 la Art 413 1 4 1 CEI 64 8 e Incase of frequent over voltages with mains impulse it is advisable to install a selective differential and to evaluate the need for adopting other devices NOMINAL COMPONENT POWER SUPPLY MODEL OA A FLA A LRA A POWER kW CRO020 2x1 95 2x3 1 2x0 1 2x0 30 FAN 400 V 3 N 50 Hz CR035 2x0 85 2x1 5 2x0 1 2x0 53 CR040 2x1 2x1 5 2x0 1 2x0 63 CR020 11 13 16 1 101 5 99 COMPRESSOR 400 V 3 N 50 Hz CR035 16 70 250 118 9 34 CR020 6 5 6 5 1 50 HUMIDIFIER 400 V 3 N 50 Hz CR035 6 5 6 5 1 50 CR040 6 5 6 5 1 50 CR020 8 7 8 7 6 ELECTRICAL HEATER 400 V 3 N 50 Hz CR035 8 7 8 7 6 CR040 8 7 8 7 6 CRO20 1 2 CONDENSATE PUMP 400 V 3 N 50 Hz CR035 1 2 z CR040 1 2 at nominal operating condition condensing temperature 120 F 48 9 C inlet air condition 100 F 37 8 C 20 RH FLA Max operating current LRA Locked rotor Amps Liebert CRV PD 273529 10 09 2010 6 17 Specifications Electrical data
88. t Quantity 2 1 125 28mm diameter knockouts 5 Three phase electrical service Connect to terminals on disconnect switch Three phase service not by Liebert 6 Factory Installed locking Disconnect Switch 7 Earth ground Terminal for field supplied earth grounding wire 8 Remote unit shutdown Replace existing jumper between terminals 37 amp 38 with field supplied normally closed switch having a minimum 75VA 24VAC rating Use field supplied Class 1 wiring 9 Customer alarm inputs Terminals for field supplied normally closed contacts having a minimum 75VA 24VAC rating between terminals 3 amp 50 2 amp 51 5 amp 55 or 3 amp 56 Use field supplied Class 1 wiring 10 Common alarm On any alarm normally open dry contact is closed across terminals 75 amp 76 for remote indication 1 AMP 24VAC max load Use Class 1 field supplied wiring 11 Heat rejection interlock On any call for compressor operation normally open dry contact is closed across terminals 70 amp 71 to heat rejection equipment 1 AMP 24VAC max load Use Class 1 field supplied wiring OPTIONAL ELECTRICAL CONNECTIONS 12 Smoke sensor alarm Factory wired dry contacts from smoke sensor are 91 common 92 NO and 93 NC Supervised contacts 80 amp 81 open on sensor trouble indication This smoke sensor is not intended to function as or replace any room smoke detection system that may be required by local or national codes 1 AMP 24VAC max loa
89. t CRV PD 273529 10 09 2010 3 15 16 TOP VIEW Si e o N L e e e N REAR VIEW ACCESS REQUIRED TO REMOVE FROM ROW Installation drawings Fig 8b Hole on the raised floor for piping and electrical connections FRONT VIEW UNIT AREA 600 23 5 8 80 3 1 8 195 5 324 5 7 11 16 12 3 4 L M gt A E ic i m SS Se UNIT AREA et s g 315 154 5 414 Ed os 114 6 1 16 16 5 16 an 2 ne o gt i a s Co NO 2 1 55 2 3 16 EEN 55 5 544 5 FRONT VIEW 2 316 21 7 16 Liebert CRV PD 273529 10 09 2010 Installation drawings Fig 8c Air bleeding valve position CW as c i Y a u ai Le REAR VIEW Fig 8d Electrical connections entry TOP INLET FRONT VIEW BOTTOM INLET possible with raised floor Liebert CRV PD 273529 10 09 2010 Refrigerant Hydraulic and Electrical Connections Fig 9a CR020RA CR035RA connections TOP
90. ted case with two temperature probes Up to 10 2T housings 20 temperature probes can be connected to a Liebert CRV One 2T housing and both sensor probes are to be attached to a rack the cooling unit is conditioning The sensors provide real time direct feedback to the cooling unit to optimize the amount of cooling and airflow required increasing energy efficiency and ensuring proper rack inlet air temperatures The sensor data can also be reported to remote BMS and monitoring systems The sensor network consists of one CAN wire leaving the cooling unit and connecting to a 2T sensor Each remaining 2T sensor is connected to the previous sensor often referred to as a daisy chain configuration REMOTE SHUTDOWN TERMINAL Provides the customer with a location to remotely shut down the unit COMMON ALARM CONTACT Provides the customer with a set of normally open n o contacts for remote indication of unit alarms CABINET The exterior steel panels are custom powder coated to protect against corrosion The double wall constructed side panels separate the 1 2 2 0 lb ft insulation from the airstream The unit is mounted on casters for quick installation and provided with leveling feet The perforated inlet and outlet panels have 8196 open area and the rear door utilizes a Kn rr rack style handle and hinges SERVICE ACCESS All service and maintenance is performed through the front and rear of the unit including any component removal No side access is
91. the units For details contact Liebert sales representative 2 2 Selection of Liebert CRV unit s 2 2 1 Heat rejection Before selecting number and size of Liebert CRV units carefully consider heat rejection type If chilled water available for the server room use CRO40RC unit s If not check the distance between Liebert CRV unit s and heat rejection unit In case the distance either vertical or total exceeds a limit refer to para 2 3 Operation limits use water glycol cooled unit s Otherwise air cooled unit s is recommended 2 2 2 Number and size When designing a cooling solution using the Liebert CRV unit s the initial steps are similar to those required to cool a conventional critical space The total heat load must be calculated including sensible and latent cooling requirements These should be increased by the reserve capacity needed for pull down situations e g after power failure where the room temperature must be reduced and to cover unexpected increases in the heat load Consider also redundant capacity which is usually not in use in the normal operation but takes duty if any of the running unit s fail So the different steps are e Check the heat load of IT equipment and apply safety margin if required e Define size and number of Liebert CRV units in order to provide enough net sensible cooling capacity to cover the heat load Typical air inlet temperatures to be considered for normal operation of the unit s ar
92. through a 3 Level password system e Automatic restart is provided after a power failure Tab 5a Technical Data Technical Data iCom Medium E2prom 4Mbit 512kbit Flash memory 32Mbit RAM memory space 128Mbit Microcontroller Coldfire 32Mbit Analogue Input 3 x 0 10V 0 5V 4 20mA selectable 2 PTC NTC 3 NTC Digital Input 9 x opto coupled Analogue Output 2 x 0 10V Digital Output 7 triacs output and 2 relay output Time and date function buffered by LI battery Hirobus Lan connectors 2 RJ45 sockets for unit in LAN remote display Ethernet network connectors 1 RJ45 socket CAN bus connectors 2 RJ12 sockets Hironet connectors 1 RJ9 socket for RS485 direct connection to proprietary supervision Liebert CRV PD 273529 10 09 2010 Microprocessor Controls 5 2 CDL Graphic Display option e Large graphic display 320 x 240 pixels e Self explanatory icons are used for the menu layout of the CDL Display e Status Report of the latest 400 event messages of the unit system e Graphic Data Records for temperature and humidity selectable timeframes from 8 minutes to 2 weeks e Semi or Full Manual Mode software management including all safety devices e 4 Level Password system to protect all settings e Ergonomic design for use also as portable device start up and flying connections by service personnel Technical Data CDL Grap
93. ture up to 30 C External temperature up to 35 C External temperature up to 40 C Standard noise Low noise Standard noise Low noise Standard noise Low noise CRO20RW 1 x ESMO18 1x ELMO18 1 x ESTO28 1 x ELMO27 1 x ESTO50 1 x ELT047 CRO35RW 1 x EST028 1 x ELMO27 1 x ESTO50 1 x ELTO55 1 x ESTO70 1 x ELTO65 The table shows the recommended combinations of the Dry Coolers Liebert HPD 50Hz CE mark with the air conditioners Liebert CRV 50Hz CE mark according to the indicated max external air temperature The combinations have been evaluated considering a mixture of water and ethylene glycol up to 30 as thermal exchange fluid The above indications are approximate and must be checked on the basis of other specific operating conditions For operating conditions other than those indicated in the table refer to the New Hirating calculation software and to the Liebert HPD service manual Liebert CRV PD 273529 10 09 2010 Heat Rejections W version Tab 7d Technical data and performance of Liebert HPD Dry Coolers Performances Electric data Overall dimensions pcs Duty a Airflow vele Supply Number of absorbed Width Depth E kW m3 h db A V ph Hz n kW mm mm mm ESMO18 16 1 15000 49 230 1 50 2 1 56 2236 820 1030 ESM022 22 0 14200 49 230 1 50 2 1 56 2236 820 1030 EST028 28 0 20000 49 400 3 50 2 1 38 2866 1250 1070 EST040 36 4 19400 49 400 3 50 2 1 38 2866 1250 1070 EST050 46 1 18400 49 400 3
94. various operating percentages min 100 Cooling capacities are net values All capacities are nominal values actual performance will be 5 NOTE Data rated with Standard MERV 8 G4 filter Some options or combinations of options may result in reduced airflow Consult factory for recommendations Refer to Tab 6j for standard air flow 6 10 Liebert CRV PD 273529 10 09 2010 Specifications Glycol cooled Tab 6f Glycol cooled 60Hz GLYCOL 30 Propylene GLYCOL 40 Propylene 60 Hz 110 F 43 3 C EWT 135 F 57 2 C Cond Temp 110 F 43 3 C EWT 135 F 57 2 C Cond Temp CRO35RW CRO20RW CRO35RW CRO20RW 105 F DB 71 F WB 40 6 C DB 21 6 C WB 17 RH Total kW BTU H 38 1 130035 22 2 75769 38 1 130035 22 2 75769 Sensible kW BTU H 38 1 130035 22 2 75769 38 1 130035 22 2 75769 Flow Rate Us GPM 1 552 24 60 0 907 14 38 1 681 26 64 0 983 15 58 Pressure Drop kPa ft H20 148 49 51 91 30 44 177 59 22 110 36 80 Unit Power Imput kW BTU H 13 05 44540 7 89 26929 13 05 44540 7 89 26929 Heat rejection kW BTU H 51 174063 30 2 103073 51 174063 30 2 103073 Supply Air Temperature C F 19 66 2 22 71 6 19 66 2 22 71 6 100 F DB 69 5 F WB 37 8 C DB 20 8 C WB 20 RH Total kW BTU H 36 2 123551 21 9 74745 36 2 123551 21 9 74745 Sen
95. vity Geet a gt Emerson Network Power Service EMEA are supported globally by local Emerson Network Power service W i AS e Mon Via Leonardo Da Vinci 16 18 technicians Liebert power precision cooling and monitoring Zona Industriale Tognana products and services from Emerson Network Power improve the 35028 Piove di Sacco PD Italy utilization and management of data center and network Tel 39 049 9719 111 M ONE Sn Fax 39 049 9719 045 technologies by increasing IT system availability flexibility and service emea emersonnetworkpower com efficiency For more information visit www liebert com www emersonnetworkpower com or United States www eu emersonnetworkpower com 1050 SE Columbus OH 43229 Tel 1 6148880246 Asia 29 F The Orient Square Building F Ortigas Jr Road Ortigas Centre Pasig City 1605 Philippines Tel 63 2 620 3600 While every precaution has been taken to ensure the accuracy Fax 63 2 730 9572 and completeness of this literature Liebert Corporation assumes no responsibility and accepts no liability for damages resulting from use of this information or for any errors or omissions 2008 Liebert Corporation All rights reserved throughout the world Specifications subject to change without notice Liebert and the Liebert logo are registered trademarks of Liebert Corporation All names referred to are trademarks or registered trademarks of their respective owners Emerson Network Power The global lead

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