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Application of Liebert

CRV

Liebert CRV - PD - 265086 - 11.01.2018

2.3.2 For A units

Outdoor temperature: lower limit -10°C

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 operation.

With low temperatures the refrigerant condensates in pipeline and the liquid tends to fulfill the condens

er.

It’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.

It’s suggested

to have:

3. HORIZONTAL CONDENSER POSITION

The condenser horizontal disposition (vertical flow) is necessary to reduce 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. In any case the max external temperature is 48°C

Exceeding of this limit (or a lack of maintenance), will caused a compressor stop by HP safety thermo

stat. Reset to normal operation can only be carried out manually.

Remote Condenser

To ensure correct operation, best performance, and longest life the units must be connected to remote

condensers approved by Vertiv .

The warranty clauses are no longer valid if unit is connected to a not approved remote condenser.

For lenght higher than 30m condenser ove15%.

(1) For more details see User Manual

(2) Positive difference in height: condenser above conditioner. Negative difference in height: condenser below conditioner

2.3.3 For C units

Relative position room unit vs. 50 Hz remote condenser

From unit to condenser max distance equivalent length, m

(1)

100

From unit to condenser max geodetic height, m

(1) (2)

Max above 30 Max below 8

Requirements
Pipe diameter

(1)

see the User Manual

Oil traps on vertical line of gas refrigerant, m

every 6

Max. water pressure 16 bar

Max. differential pressure through the closed valve: Dp

Max. differential pressure across the valve for modulating service: Dp

Models

(kPa)

CR032RC

300

CR038RC

300

CR060RC

175

Содержание Liebert CRV 300 CW

Страница 1: ...Liebert CRV300 11 20kWDXversion 38 60kWCWversion A C Versions Product Documentation English Cod 265086 rev 11 01 2018 ...

Страница 2: ......

Страница 3: ...frigerant Hydraulic and Electrical Connections 10 Refrigeration Hydraulic Circuits The product conforms to European Union directives 2006 42 EC 2014 30 EU 2014 35 EU 2014 68 EU Units are supplied complete with a test certificate and conformity declaration and control component list Liebert CRV units are CE marked as they comply with the European directives concerning mechanical electrical and elec...

Страница 4: ...mproves the overall system efficiency The Liebert CRV provides all the necessary functions provided by a standard precision air condition er including cooling heating humidification dehumidification air filtration condensate management temperature control alarm functions and data communications It is targeted for small and medium data centers and it is optimized to ensure maximum cooling capac ity...

Страница 5: ...for cooling of IT electronic equip ments which enhance the overall cooling system efficiency 2 1 1 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 ...

Страница 6: ... 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 2 Air Flow Requirements Liebert CRV is optimized to provide precision cooling for IT equipment with temperature raise delta T of cooling air passing through t...

Страница 7: ...ions contact the Liebert Sales Representative Outdoor temperature higher limit This limit is determined by coupled condenser model In any case the max external temperature is 48 C Exceeding of this limit or a lack of maintenance will caused a compressor stop by HP safety thermo stat Reset to normal operation can only be carried out manually Remote Condenser To ensure correct operation best perform...

Страница 8: ...ingle Row Placement The Liebert CRV can be placed either at the end of a row or in between server racks Locating a Lieb ert CRV at the end of a row helps to isolate the end of the cold aisle from the surrounding space pro tecting it from hot air wrapping around the sides of the aisle The 2T rack temperature sensors sample supply and return air temperatures When deploying multiple Liebert CRV it is...

Страница 9: ...sle containment When the depths of a Liebert CRV and neighboring server rack are not the same it is important to align the front edges of the Liebert CRV with the front edges of the neighboring server racks to allow for proper air distribution Fig 2d Simulated aisle containment using room barriers single row Cold Supply Air Cold Aisle Rack Rack Rack Rack Rack Rack Hot Return Air Hot Aisle Rack Rac...

Страница 10: ...low to automatically balance the Liebert CRV cooling capacity and airflow to the server rack s re quirements in real time The 2T rack temperature sensors installed in the sensor boxes of the containment can be used to con trol the fan speed of the unit in the SmartAisleTM mode Version Without Air Discharge Baffles can be used in SmartAisleTM applications Fig 2f Liebert CRV Placement in SmartAisleT...

Страница 11: ...ecure 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 recircula...

Страница 12: ...olled by the iCOM Control System The standard user interface is the Large Graphical Display 320x240 pixels backlit which presents system informa tion and allows all parameters to be viewed and adjusted It features push button navigation operation al status LEDs and a 3 level password protection system iCOM without display is available as option Unit without display can be controlled through a disp...

Страница 13: ... 3 level password protection system iCOM without display is available as option Unit to Unit communication with other Liebert CRVs and two Intelli Slot 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...

Страница 14: ...DUAL POWER SUPPLY with an internal automatic transfer switch is available as an option With this option the unit can be connected to 2 separate power supplies where each power supply is able to com pletely feed the unit In case of failure of the main supply the unit automatically switches to the second power supply This allows to have a complete power supply redundancy Chilled water models CONDENS...

Страница 15: ... alarms LIQUISTAT 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 acti vated DUAL POWER SUPPLY with an internal automatic transfer switch is available as an option With this option the unit can be connected to 2 separate power supplies where each power supply is a...

Страница 16: ...anual 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 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 Contr...

Страница 17: ...f low and high priority alarms high low temperature high low refrigerant pressure fan con trol failure compressor control failure and others are available 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 All settings are protected through a 3 Level password system Automatic restart ...

Страница 18: ...Data CDL Graphic Display Microcontroller Coldfire 32Mbit Ethernet network connectors 2 RJ45 sockets for unit in LAN remote display CAN bus connectors 2 RJ12 sockets Power supply via CAN bus or external 12Vdc supply 5 3 iCOM without Display option Internal 3 digit display 3 color LED light status indicator on front door Switch for local ON OFF on front door CRV units with internal display can be co...

Страница 19: ...C 23 7 21 2 35 C DB 26 RH Net Total kW 11 4 20 3 Net Sensible kW 11 4 20 3 Unit Power Input kW 3 30 5 68 Heat rejection kW 14 70 25 98 Supply Air Temperature C 22 19 5 32 C DB 29 RH Net Total kW 11 2 19 7 Net Sensible kW 11 2 19 7 Unit Power Input kW 3 57 5 94 Heat rejection kW 14 77 25 64 Supply Air Temperature C 19 4 17 1 30 C DB 34 RH Net Total kW 11 19 4 Net Sensible kW 11 19 4 Unit Power Inpu...

Страница 20: ...0 Heat rejection kW 14 37 25 30 Supply Air Temperature C 13 3 12 25 C DB 40 RH Net Total kW 10 4 18 6 Net Sensible kW 10 4 18 6 Unit Power Input kW 3 78 6 53 Heat rejection kW 14 18 25 13 Supply Air Temperature C 13 5 11 2 22 C DB 55 RH Net Total kW 10 4 18 6 Net Sensible kW 8 9 15 1 Unit Power Input kW 3 78 6 53 Heat rejection kW 14 18 25 13 Supply Air Temperature C 12 4 11 1 22 C DB 50 RH Net To...

Страница 21: ... 40 90 Unit Power Input kW 0 92 0 92 0 92 1 70 1 70 1 70 3 02 3 02 3 02 Flow Rate l s 1 38 1 22 1 09 1 80 1 59 1 38 2 55 2 26 1 95 Pressure Drop kPa 82 65 49 133 00 105 00 79 00 93 00 116 00 88 00 Supply Air Temp C 13 6 15 9 18 6 14 90 17 40 19 90 14 70 17 30 19 90 32 C DB 29 RH Total kW 25 6 22 1 18 6 33 20 28 70 24 20 47 20 40 80 34 40 Sensible kW 25 6 22 1 18 6 33 20 28 70 24 20 47 20 40 80 34 ...

Страница 22: ...40 RH Total kW 17 2 13 6 9 6 22 40 17 70 12 70 32 00 25 30 18 30 Sensible kW 17 2 13 6 9 6 22 40 17 70 12 70 32 00 25 30 18 30 Unit Power Input kW 0 92 0 92 0 92 1 70 1 70 1 70 3 02 3 02 3 02 Flow Rate l s 0 82 0 62 0 46 1 07 0 84 0 61 1 53 1 21 0 88 Pressure Drop kPa 32 20 11 51 00 33 00 18 00 58 00 37 00 21 00 Supply Air Temp C 12 8 15 5 18 5 13 80 16 40 19 10 13 80 16 50 19 20 22 C DB 55 RH Tot...

Страница 23: ...and 277V line to ground Unacceptable Power Supplies 380V to 460V Nominal Units IT System Wye with high resistance or impedance ground Delta without ground or with floating ground Delta with corner ground Delta with grounded center tap If the unit must be installed in the IT System contact Vertiv Technical department prior to installation Tab 6c Electrical data Wye Power SupplyConnection Delta Powe...

Страница 24: ...0 V 1 PH 50 Hz CR011 19 57 19 57 4 5 CR021 6 5 6 5 4 5 CR032 6 5 6 5 4 5 CR038 6 5 6 5 4 5 CR060 6 5 6 5 4 5 CONDENSATE PUMP 230 V 1 PH 50 Hz CR011 0 8 0 075 CR021 0 8 0 075 CR032 0 8 0 075 CR038 0 8 0 075 CR060 0 8 0 075 Configuration Model Unit Power supply FLA A LRA A RESIDUAL CURRENT CIRCUIT BREAKERS IΔn 0 3A 400V Cooling Fan CR032RC 230V 1ph 50Hz 6 3 0 3 16 A Curve C CR038RC 8 4 0 4 CR060RC 1...

Страница 25: ... 7 67 2 66 4 66 2 63 65 2 60 2 53 2 70 2 64 5 Fan Speed Airflow m3 h Octave band frequency Hz Sound Level dB A Unit SPL suction 2m f f dBA Level 31 5 63 125 250 500 1000 2000 4000 8000 100 4000 PWL 64 6 71 1 75 8 85 8 90 2 92 90 6 86 5 78 6 96 3 73 1 75 3000 56 9 63 4 68 1 78 1 82 5 84 3 82 9 78 8 70 9 88 6 65 4 60 2400 52 1 58 6 63 3 73 3 77 7 79 5 78 1 74 66 1 83 8 60 6 Fan Speed Airflow m3 h Oc...

Страница 26: ...33 1 x HCR43 1 x HCR43 1 x HCR51 CR021RA 1 x HCR33 1 x HCR43 1 x HCR43 1 x HCR51 1 x HCR51 1 x HCR59 MODEL External temperature up to 35 C External temperature up to 40 C External temperature up to 46 C standard noise standard noise standard noise CR011RA 1 x MCS028 1 x MCM040 1 x MCM040 CR021RA 1 x MCM040 1 x MCM055 1 x MCL055 MODEL External temperature up to 35 C External temperature up to 40 C ...

Страница 27: ...W 1120 D 856 H 934 60 HCR24 230 1 50 23 98 8600 50 0 0 55 2 5 2 6 16 16 W 1340 D 831 H 1112 60 HCR33 230 1 50 32 2 7400 50 0 0 55 2 5 2 6 16 16 W 1340 D 831 H 1112 75 HCR43 230 1 50 46 0 17000 53 0 1 10 5 0 5 2 16 16 W 2340 D 831 H 1112 92 HCR51 230 1 50 52 0 17000 53 0 1 10 5 0 5 2 22 16 W 2340 D 831 H 1112 93 HCR59 230 1 50 62 0 15600 53 0 1 10 5 0 5 2 22 16 W 2340 D 831 H 1112 102 HCR76 230 1 5...

Страница 28: ... 49 7400 53 0 0 55 1 3 1 3 16 16 W 1340 D 831 H 1112 75 HCR43 400 3 50 45 84 17000 56 0 1 10 2 4 2 4 16 16 W 2340 D 831 H 1112 92 HCR51 400 3 50 51 5 17000 56 0 1 10 2 4 2 4 22 16 W 2340 D 831 H 1112 93 HCR59 400 3 50 61 03 15600 56 0 1 10 2 4 2 4 22 16 W 2340 D 831 H 1112 102 HCR76 400 3 50 78 0 25500 58 0 1 65 3 6 3 6 22 16 W 3340 D 831 H 1112 136 HCR88 400 3 50 92 0 23400 58 0 1 65 3 6 3 6 22 1...

Страница 29: ...m Liquid line mm MCS028 230 1 50 32 96 8831 49 8 0 473 0 99 4 3 22 22 W 1283 D 1180 H 955 70 MCM040 400 3 50 41 97 11264 540 0 636 1 23 1 5 22 22 W 1381 D 972 H 1269 105 MCL055 400 3 50 59 55 15451 6 200 0 920 1 72 3 5 28 28 W 1676 D 1509 H 1105 156 MCM080 400 3 50 83 94 22528 5 700 1 272 2 46 3 28 28 W 2602 D1269 H 972 200 MCL110 400 3 50 112 30902 6 500 2 11 3 96 7 35 35 W 3102 D 1509 H 1102 273...

Страница 30: ...05 MCM040 230 1 50 44 78 10600 52 00 0 78 3 75 440 22 22 W 1381 D 972 H 1269 105 MCL055 400 3 50 58 60 16250 53 50 1 60 3 60 4 40 28 28 W 1676 D 1509 H 1105 156 MCM070 230 1 50 69 00 16000 53 10 0 94 3 46 8 80 35 35 W 2602 D1269 H 972 200 MCM080 230 1 50 89 56 21200 55 00 1 55 7 50 8 80 35 35 W 2602 D1269 H 972 200 MCL110 400 3 50 117 20 32500 57 00 3 20 7 20 8 80 35 35 W 3102 D 1509 H 1102 273 MC...

Страница 31: ... condensers are CE marked Conform to the following European Directives MD 2006 42 EC EMC 2014 30 EU LVD 2014 35 EU PED 2014 68 EU Frame is made up of a sturdy aluminum structure Units are factory equipped with electric board with main disconnector IP65 and with stepless fan speed controller The entire units have IP54 type of protection Motorized fans are IP54 DIN60529 protection class F Maintenanc...

Страница 32: ... dimensions service area 8 FRONT VIEW REAR VIEW TOP VIEW A S B B S A 915 300 300 300 915 300 300 300 2000 COLD AIR REAR VIEW FRONT VIEW with display Front access diagram Rear access diagram HOT AIR FRONTPLENUM TOPPLENUM D D D1 W W H1 H H Fig 8b Overall dimensions service area ...

Страница 33: ... the row only Front or Rear clearance required Models Height mm Depth mm Installation depth mm Weight kg CR11RA 2000 1100 1200 1250 220 CR21RA 2000 1100 1200 1250 230 Tab 8b Overall dimensions CW Models H mm H1 mm D mm D1 mm W mm Weight kg CR032RC 2000 222 1100 1200 100 300 200 CR038RC 2000 222 1100 1200 100 300 210 CR060RC 2000 222 1100 1200 100 300 230 ...

Страница 34: ...8 31 Installation drawings Liebert CRV PD 265086 11 01 2018 Fig 8c Hole on the raised floor for piping DX FRONT VIEW UNIT AREA UNIT AREA FRONT VIEW 21 89 190 247 177 676 1100 ...

Страница 35: ...8 32 Installation drawings Liebert CRV PD 265086 11 01 2018 TOP VIEW 540 380 180 20 100 FRONT SIDE OF THE UNIT FRONT SIDE OF THE UNIT 300 1100 Fig 8d Hole on the raised floor for piping CW ...

Страница 36: ...8 33 Installation drawings Liebert CRV PD 265086 11 01 2018 Fig 8e Air bleeding valve position CW ROOF HIDDEN FOR CLARITY BACK SIDE OF THE UNIT DETAIL DETAIL ...

Страница 37: ...8 34 Installation drawings Liebert CRV PD 265086 11 01 2018 Fig 8f Electrical connections entry DX FRONT VIEW TOP INLET BOTTOM INLET ...

Страница 38: ...8 35 Installation drawings Liebert CRV PD 265086 11 01 2018 Fig 8g Electrical connections entry CW TOP INLET ...

Страница 39: ... line inlet ISO 7 1 OD 12 Rp CU SWEAT OGT Refrigerant gas line outlet ISO 7 1 OD 16 Rp 5 8 CU SWEAT OGB Refrigerant gas line outlet ISO 7 1 OD 16 Rp 5 8 CU SWEAT CD Condensate drain ISO 7 1 CD Condensate drain ISO 7 1 ID 48 HF Humidifier feed opt ISO 7 1 Rp HF Humidifier feed opt ISO 7 1 ID 28 HD Humidifier drain ISO 7 1 HD Humidifier drain ISO 7 1 ID 48 DP Pump drain ISO 7 1 Rp 5 8 DP CD or HD Pu...

Страница 40: ...D or HD Pump drain ISO 7 1 ID 48 EC HVT1 Electrical supply High voltage ID 48 EC HVT2 Electrical supply High voltage ID 48 EC LVT1 Electrical supply Low voltage ID 22 EC LVB1 Electrical supply Low voltage ID 28 EC LVT2 Electrical supply Low voltage ID 22 EC LVB2 Electrical supply Low voltage ID 28 TOP CONNECTIONS BOTTOM CONNECTIONS EC HVT1 EC HVT2 EC LVT2 EC LVT1 OCWT ICWT 120 0 4 72 30 0 1 18 434...

Страница 41: ...oard layout 15 8 9 13 6 12 7 11 10 X1 1 32 51 51 52 53 53 54 054 55 61 61 62 63 81 82 83 84 710 710 Y2 G0 70 71 72 73 70C 71C 400 401 402 300 301 302 0 0 0 0 24 24 24 24 105 106 121 121 121 125 127 126 128 22 395 172 173 800 801 802 803 804 805 806 X1 2 29 807 Wire bridge 25X100 25X100 5 X1 1 X1 2 X1 2 X1 1 5 ...

Страница 42: ...oss 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 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 termi nals 70 71 2 AMP 24VAC max load...

Страница 43: ...127 51 128 53 61 53 61 SPRING TERMINALS STTB2 5 52 61 54 62 710 63 710 64 730 68 054 065 81 70 82 71 83 101 84 102 G0 105 Y2 106 395 00 LEVEL 2 TOP 300 Y1 301 400 302 401 402 4 3 4 3 4 4 4 3 5 2 5 3 13 2 13 3 6 2 4 7 6 2 4 6 6 2 6 6 6 3 6 6 6 3 6 7 6 1 6 7 7 2 6 6 7 3 6 6 7 2 5 8 7 3 5 8 8 1 9 6 8 2 9 6 8 3 8 4 8 3 8 5 5 2 8 7 5 1 8 8 13 2 5 6 9 3 5 5 9 4 9 1 9 4 9 2 9 2 Fig 9c CW electrical board...

Страница 44: ...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 Fan motor on On any call for fans operation normally open dry contact is closed across terminals 70 71 2 AMP 24VAC max load Use Class 1 field supplied wiring OPTIONAL ELECTRICAL CONNECTIONS 11 Smoke sensor alarm with smoke sensor option The smoke se...

Страница 45: ... COMPRESSOR 12 SHUT OFF VALVE 2 CRANKCASE HEATER 13 EVAPORATING COIL 3 HIGH PRESSURE SWITCH 14 LOW PRESSURE TRANSDUCER 4 AIR COOLED CONDENSER 15 LIQUID SEPARATOR 5 LIQUID RECEIVER 16 SHUT OFF SOLENOID VALVE 6 ACCESS VALVE 5 16 17 HIGH PRESSURE TRANSDUCER 7 SAFETY RELIEF VALVE 18 VIBRATION ABSORBER 8 FILTER DRYER 19 CUP AND FITTING SWEAT JOINT 9 SIGHT GLASS 20 TEMPERATURE SENSOR FOR EEV 10 ELECTRON...

Страница 46: ...l 2 way valve CHILLED WATER OUTLET top connections CHILLED WATER OUTLET bottom connections CHILLED WATER INLET bottom connections 6 CHILLED WATER INLET top connections POS DESCRIPTION 1 Chilled water cooling coil 2 3 port water valve 3 Air bleeding valve 4 Valve fittings 5 Blind disk only with optional 2 way valve 6 NTC inlet water sensor ...

Страница 47: ...uit est conforme aux directives Européennes El Fabricante declara que este producto es conforme a las directivas Europeas O Fabricante declara que este produto está em conformidade com as directivas Europeias Tillverkare försäkrar härmed att denna produkt överensstämmer med Europeiska Uniones direktiv De Fabrikant verklaart dat dit produkt conform de Europese richtlijnen is Vaimistaja vakuuttaa tä...

Страница 48: ...stered trademarks of Vertiv Co All other names and logos referred to are trade names trademarks or registered trademarks of their respective owners While every precaution has been taken to ensure accuracy and completeness herein Vertiv Co assumes no responsibility and disclaims all liability for damages resulting from use of this information or for any errors or omissions Specifications are subjec...

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