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SL-11978 - Emerson Network Power

1. See Figure 10 for low voltage field wiring routing into the unit 1 75 44 5mm Knockout 1 13 28 6mm Knockout VIEW A A Factory provided conduit for routing field low voltage wiring to the unit s electric box 16 11 10 13 OOOO Q ae 2 l 67 Ol VIEW B B OOODOOO 6 Air and Water U T inal 2 Glycol units only pper terminals 5E z 0 2 2 10 z Factory provided v coq E conduit for routing RE field low voltage 1 N wiring to the unit s OOOO N electric box OOOOO S te below o Oe ee note below a N Na es Do Rotate 1 4 turn o clockwise to allow OOOOO access to electrical All internal low voltage field wiring 882323888 10000000 components must be secured with cable ties away OOOOOOOOO DPNO002810 from moving parts high temperature
2. Table 9 Sound data Model CRO20RA 600mm 24in air cooled 2 Fans with Filter Sound Power Level PWL Sound Pressure Level SPL Airflow Octave Band Frequency Hz At Suction Side A Scale 2m Distance Fan 31 5 63 125 250 500 1000 2000 4000 8000 Weighted Free Field Conditions Speed SCFM m7 h dB dB dB dB dB dB dB dB dB dB A 2m f f dBA 100 2454 4170 73 8 69 4 71 77 3 75 9 74 2 73 5 68 2 592 79 6 69 2 75 2166 3680 71 2 66 8 68 4 74 7 73 3 71 6 70 9 65 6 56 6 77 66 9 55 1780 3025 67 6 63 2 64 8 71 1 69 7 68 67 3 62 53 73 4 63 9 Table 10 Sound data Model CR035RA 600mm 24in air cooled 2 Fans with Filter Sound Power Level PWL Sound Pressure Level SPL Airflow Octave Band Frequency Hz At Suction Side A Scale 2m Distance Fan 31 5 63 125 250 500 1000 2000 4000 8000 Weighted Free Field Conditions Speed SCFM m7 h dB dB dB dB dB dB dB dB dB dB A 2m f f dBA 100 3260 5540 76 76 2 80 5 82 7 77 3 73 1 74 5 69 61 9 80 9 70 75 2708 4600 71 3 71 5 75 8 78 72 6 68 4 69 8 64 3 57 2 76 2 65 7 50 2048 3480 66 3 66 5 70 8 73 67 6 63 4 64 8 59 3 52 2 71 2 61 9 Table 11 Sound data CRO019RAS 300mm 12in DX air cooled and water glycol cooled 5 Fans with Filter Sound Power Level PWL Sound Pressure Level SPL Ai
3. DPNO03273 o bE e d oe Pg 1 Rev 0 T TOP VIEW OF LIEBERT CRV Liebert CRV 134 Seismic Application 600mm 24 Models Optional Unit Configuration Required Figure 91 Floor stand overall dimensions Factory supplied plugs can be removed after the Liebert CRV is installed H 38 3 8 976mm 2 lt 20 1 4 ZK 513mm q CT J S iSo 46 117mm pat Se ie H 38 1mm 64mm 9 1 2 FOOT DETAIL 241mm Foot 4 Places Threaded Rod 7 8 DPNO003273 Foot provides 1 4 6 35mm and Neoprene Pad 1 8 Thick Pg 2 Rev 0 adjustment from nominal height H Table 58 Dimensions in Figure 91 A H Nominal in mm in mm 12 12 305 8 3 4 222 18 18 457 14 3 4 375 24 24 610 20 3 4 527 135 Liebert CRV Seismic Application 600mm 24 Models Optional Unit Configuration Required Figure 92 Floor stand connection details Floor Stand Anchoring 1 To level the unit lower the four stabilizing feet until they contact the floor stand see Detail A 2 Anchor the bracket to the unit and the floor stand using the provided screws see Detail A Base of unit 3 The same mo
4. o f AT WEIGHT Ib kg x 53 7 8 MCL055 344 156 m 1368mm MCL110 602 273 o E 48 3 4 O 1238mm LJ DPNOO2416 Rev 4 Dimensions In mm of A Model Fans A 575V B 68 76 1 8 56 MCLOSS 1 4727 1935 1423 124 1 8 132 1 4 112 1 8 MCL110 2 3152 3360 2848 Source DPN002416 Rev 4 Height In mm Leg Height Model C D E F In mm MCLO055 43 5 8 1108 35 7 8 911 54 3 8 1381 18 457 MCL110 61 5 8 1565 53 7 8 1368 110 1 2 2806 36 914 f Cross bracing required for legs longer than 18 48 1219 457mm quantity varies per model and options selected Source DPN002416 Rev 4 60 1524 Liebert CRV 36 Heat Rejection Liebert MC and Fin Tube Condensers Figure 23 Typical footprint dimensions all units 13 16 21mm a 2 1 2 3 5 8 93mm 1 7 8 48mm A d 2 1 2 64mm 1 2 x1 i 12 7mm x 25 4mm 93mm Obround 1 7 8 48mm 4 3 Electrical Data Liebert MC Condensers Table 16 Electrical data three phase 60Hz condenser Premium Version EC control MCS028 MCM040 MCM080 MCL055 MCL110 Voltage FLA WSA OPD FLA WSA OPD FLA WSA OPD FLA WSA OPD FLA WSA OPD 208 230V 3 3 8 15 23 32 15 46 55 15 5 7 74 15 11 4 12 8 15 460V 1 4 1 8 15 14 1 9 15 28 33 15 28 3 5 15 5 6 63 15 575V 1 2 1 5 15 12 1 6 15 2 3 28 15 23 29 15 47 53 1
5. REAR Liebert CRV Liebert CRV Component Location Figure3 Component location Liebert 300mm 12 CR032 chilled water units Liebert iCOM Cooling Coil Knockouts for Bottom Electrical Entrance 4 Supply amp Return Piping Connections Bottom 5 Bottom Chilled Water and Condensate Pump Drain Connections 6 Caster and Leveling Foot Each Corner REAR 7 Chilled Water Valve 2 or 3 Way Valve 8 Electric Box 9 Serial Tag 10 Main Disconnect Switch 11 Top Electrical Entrance 12 Baffles Five Assemblies 13 EC Plug Fans Six 44 Top Chilled Water and Condensate Pump Drain Connections Liebert CRV 4 Liebert CRV Component Location Figure 4 FRONT
6. 0 32 23 14 5 4 13 0 5 10 15 20 25 Temperature F C Percent in Weight _ Percent in Volume Liebert CRV 82 Heat Rejection Drycoolers NOTICE Risk of freezing fluid mixture Can cause equipment damage The water supply loop must be checked periodically for proper glycol mixture content For safety calculate the percentage for protection at least 9 F 5 C below the minimum ambient design temperature 6 2 Drycooler General Data Table 40 Drycooler electrical data of Fans 1 2 3 4 Model 112 174 197 225 310 419 Pump Hp ph FLA WSA OPD ph FLA WSA OPD ph FLA WSA OPD ph FLA WSA OPD 208 230 60 0 75 1 12 4 14 3 20 0 75 3 7 0 7 9 15 3 10 5 11 4 15 3 14 0 14 9 15 3 17 5 18 4 20 1 5 3 10 1 11 8 15 3 13 6 15 3 20 3 17 1 18 8 25 3 20 6 22 3 25 2 0 3 11 0 12 9 20 3 14 5 16 4 20 3 18 0 19 9 25 3 21 5 23 4 30 3 0 3 14 1 16 8 25 3 17 6 20 3 30 3 21 1 23 8 30 3 24 6 27 3 35 5 0 3 20 2 24 4 40 3 23 7 27 9 40 3 27 2 31 4 45 3 30 7 34 9 50 7 5 3 27 7 33 8 50 3 31 2 37 3 60 3 34 7 40 8 60 3 38 2 44 3 60 460 3 60 0 75 3 3 3 3 7 15 3 5 0 5 4 15 3 6 7 7 1 15 3 8 4 8 8 15 1 5 3 47 5 5 15 3 6 4 7 2 15 3 8 1 8 9 15 3 9 8 10 6 15 2 0 3 5 1 6 0 15 3 6 8 7 7 15 3 8 5 9 4 15 3 10 2 11 1 15 3 0 3 6 5 7 7 15 3 8 2 9 4 15 3 9 9 11 1 15 3 11 6 12 8 15 5 0 3 9 3 11 2 15
7. BOTTOM PIPING CONNECTIONS Component location Liebert 300mm 12 CR019 water glycol units TOP PIPING CONNECTIONS 1 LiebertiCOM 2 Evaporator Coil 3 Supply amp Return Piping Connections Bottom 4 Knockouts for Bottom Piping Connections 5 Knockouts for Bottom Electrical Entrance 6 Compressor 7 Caster and Leveling Foot Each Corner 8 Electric Box 9 Serial Tag 10 Main Disconnect Switch 11 Top Electrical Entrance 12 Baffles Five Assemblies 13 EC Plug Fans Five 44 Top Connections for Water and Condensate Pump Drain 15 Control Valve 16 Heat Exchanger Plate 17 Condensate Pump Liebert CRV Product Description Configurations 2 0 PRODUCT DESCRIPTION CONFIGURATIONS The Liebert CRV is a Thermal Management unit for location within a row of heat generating IT equipment racks The 300 series and 600 series provide all the necessary functions of a Thermal Management unit including cooling dehumidification air filtration and condensate management The 600 ser
8. 0 0 ccc ccc eee 92 Electrical Data 600mm 24in Units 0 nee rn 93 7 6 1 Electrical Connections Standard Features 600mm 24in Wide Models 95 7 6 2 Electrical Connections Optional Features 600mm 24in Wide Models 96 7 6 3 Important Note for 460V Rated Liebert CRV Units CR A 00 0 0 ee 96 Electrical Data 300mm 12in Units 0 eee eens 96 7 7 1 Standard Electrical Field Connections 300mm 12in Air Cooled and Chilled Water hn M 97 7 7 2 Electrical Field Connections for Optional Features 300mm 12in Air Cooled and Chilled Water Models do ERE USES NE ER IRI M de Np efe 98 Dimensions 600mm 24in and 300mm 12in Models ccc eee 104 Piping 600mm 241n Units i242 m nee a a e NUNT RR a 106 Piping 300mm 12in Units leeeeeeeeeeeeeeeee ees 108 Sound Data 600mm 24in and 300mm 12in Chilled Water Systems 110 Standard Features 600mm 24in Chilled Water Systems 0 00000 e eee 111 7 13 600mm 24in Chilled Water Optional Features 0000 cc cee 7 14 Standard Features 300mm 12in Chilled Water Systems 0 0 0 0 00 cee eee 7 15 300mm 12in Chilled Water Optional Features 0 0 00 APPENDIX A LIEBERT CRV INTENDED APPLICATION 00 00 cee n R3 hn A Unit to Unit U2U Coordinated Cooling Operation llle AO BuarpAne Configuration 4c esse anderen caw tv
9. 1 To level the unit lower the four stabilizing feet until they contact the floor stand see Detail A 2 Anchor the bracket to the unit and the floor stand using the the screws provided all factory supplied screws must be used to maintain seismic Base of Liebert CRV certification see Detail A 1 4 14 Self drilling 3 The same mounting bracket is used in the front and rear of the unit This document is not to be used for field installation refer to the Liebert CRV installation 1 2 13 Bolts manual SL 11975 nuts and washers supplied Drilling hole in floor stand not required 3 places screws supplied 10 places 4 Bracket supplied DPNO002765 front and rear Pg 8 Rev 1 DETAIL A Liebert CRV 130 Seismic Application 600mm 24 Models Optional Unit Configuration Required Figure 87 Seismic certification tested connection detail continued FRONT Baffle Panel Not Shown 1 Lower the four leveling feet until they contact the floor before attaching the bracket see Detail B Verify that the unit is level to avoid corrosion and health hazards caused by condensate accumulation 2 Bracket must be centered on the Liebert CRV s base see Detail A 3 Anchor the bracket to the floor Refer to the anchoring detail on Figure 82 4 Self drilling screws see Detail A to secure the bracket to the Liebert CRV 5 The bracket is also used
10. 43 3 1100mm 11 8 300mm Access Required to Install the Unit Between Existing Racks Within the Row ONLY Front or Rear Clearance Required Zo d gt On n 49 2 1250mm Installation Depth 49 2 1250mm Installation Depth 105 Liebert CRV Chilled Water Systems 600mm 24in and 300mm 12in Cabinets 7 9 Piping 600mm 24in Units Figure 62 Piping and electrical connections chilled water models Piping and electrical connections available at the top and bottom of the unit TOP CONNECTIONS Rev 2 3 1 4 83mm 17 5 16 2 15 16 Pd I POM J i 9 1 2 9 5 16 5 1 8 242mm ena 130mm i 2 11 16 69mm 2 11 16 on eu 46 1 4 3 1 16 1175mm 77mm 1 3 4 45mm 3 13 16 4 3 4 97 15 n 1 3 8 c l f LVB2 5 38mm 85 127mm Y Y 5 3 8 136mm 2 3 16 56mm i 2 1 8 54mm 4 13 16 ee SAM 122mm 2 3 16 56mm BOTTOM CONNECTIONS DPNO001794 3 1 4 88mm 23 5 8 600mm possible with raised floor Table 50 Unit connections chilled water models Unit Connections CRO040C 60Hz CWS Chilled Water Supply 1 1 4 FPT CWR Chilled Water Return 1 1 4 FPT GD Gravity Coil Pan Drain 1 MPT GDH Gravity Humidifier Drain N A HS Humidifier Supply 1 2
11. Manual for diagnostic or to receive a signal from the BMS through the Liebert IS UNITY DP card Teamwork Modes of Operation Liebert iCOM teamwork shall save energy by preventing multiple units in an area from operating in opposing modes There are three modes of teamwork operation Teamwork Mode 1 Allows the control to optimize a group of connected Liebert 1COM units using the U2U This mode prevents units from operating in opposing modes and ensures efficient cooling and uniform operation Teamwork Mode 2 Allows the control to optimize a group of connected Liebert CRV s equipped with Liebert 1COM s using the U2U The capacity and fan operations in decoupled in this mode meaning the fan and cooling ramp and respond to the thermal load based on its controlling sensors Teamwork Mode 3 Optimized Aisle Allows the control to optimize a group of connected Liebert 1COM units using the U2U The capacity and fan operations in decoupled in this mode meaning the fan and cooling ramp and respond to the thermal load based on its controlling sensors In the Optimized Aisle mode the fans can be controlled by using static pressure DP or static with a secondary remote temperature sensor as an override to ensure the inlet rack temperature is being met Temperature Compensation Liebert 1COM shall have the ability to compensate the supply and return setpoints to maintain cooling OR return temperatures to meet cooling needs or SLA guidelines
12. Power Supply Tolerances Electrical Data Air Cooled Models Table 7 Electrical data Air cooled 600mm 24in models CR035RA CRO20RA Voltage 460 3 60 208 3 60 460 3 60 208 3 60 Dehumidification With or Without Humidifier Reheat Condensate Pump FLA 32 2 62 0 24 2 50 8 WSA 39 1 75 4 29 2 61 4 OPD 50 100 35 80 Dehumidification and Humidifier NO Reheat Condensate Pump FLA 28 4 53 8 20 4 42 6 WSA 33 4 63 1 23 5 49 1 OPD 50 100 35 70 Dehumidification and Condensate Pump NO Reheat NO Humidifier FLA 24 7 45 4 16 7 34 2 WSA 29 7 54 7 19 8 40 7 OPD 45 90 30 60 Dehumidification and Reheat NO Humidifier NO Condensate Pump FLA 31 0 59 7 23 0 48 5 WSA 37 9 73 1 28 0 59 1 OPD 50 100 35 80 Dehumidification NO Humidifier NO Reheat NO Condensate Pump FLA 23 5 43 1 15 5 31 9 WSA 28 5 52 4 18 6 38 4 OPD 45 80 30 60 Table 8 Electrical data Air cooled 300mm 12in models CR019 Voltage FLA WSA OPD With Condensate Pump 208 230V 3Ph 60Hz 33 4 39 9 60 460V 3Ph 60Hz Wye Connected 16 8 20 30 Without Condensate Pump 208 230V 3Ph 60Hz 32 5 39 60 460V 3Ph 60Hz Wye Connected 16 3 19 4 30 11 Liebert CRV Air Cooled Systems 3 4 Electrical Connections Standard Features 600mm 24in units Source DPN001884 Rev 7 Pg 1 T 2 10 11 12 High Voltage Connection Through the Bottom of the E
13. Dew Point Control Liebert 1COM shall have the ability to control the humidity based on dew point to ensure accurate humidity control This will eliminate needs to dehumidify or humidify based on air temperature when looking at moisture content Virtual Back Draft Damper Liebert 1COM shall allow the use of a virtual back draft damper eliminating the need for a mechanical damper This shall allow the fans to spin at a low speed 15 to act as a damper NOTE EC fans are needed for this control option Cascade Liebert 1COM cascade option shall allow the units to turn On and Off based on heat load when in Teamwork Mode 1 When utilizing Optimized Aisle Teamwork Mode 3 the cascading becomes more dynamic as the units coordinate the fan speed to save energy and to meet the cooling demands For instance with a Liebert 1COM group of six units and only 5096 of the IT capacity the Liebert iCOM shall operate only four units at 80 fan speed and leave the other two units in standby cascade mode As the load increases and more equipment is added to the data center the Liebert 1COM shall automatically respond to the new load and bring on another unit increasing the units in operation to five As the load shifts up or down capacity and server utilization the control shall meet the needs by cascading units On or putting them back into standby Virtual Master As part of the robust architecture of the Liebert iCOM control it shall allow for a virtual mas
14. 2 7 1 2 8 2 9 2 10 2 10 2 10 Models CR019 CR032 MERV 1 The two filters shall be an integral part of the system located within the cabinet and serviceable from the rear The filters shall be washable half inch thick with an ASHRAE 52 2 MERVI rating filter clog alarm shall be included MERV 8 The two filters shall be an integral part of the system located within the cabinet and serviceable from the rear The filters shall be washable half inch thick with an ASHRAE 52 2 MERVS rating filter clog alarm shall be included Extra Filter Set Optional extra set s of filters shall be provided per system Electric Reheat The low watt density 304 304 stainless steel finned tubular electric reheat coils shall be capable of maintaining room dry bulb conditions when the system is calling for dehumidification The reheat section shall include UL CSA recognized safety switches to protect the system from overheating The capacity of the reheat coils shall be controlled in one stage The reheat elements shall be accessible from the front of the cabinet Steam Generating Canister Humidifier A canister type steam generating humidifier shall be factory installed in the cooling unit and operated by the Liebert iCOM It shall be complete with disposable cylinder all supply and drain valves steam distributor and electronic controls The need to change the canister shall be indicated on the Liebert 1COM The humidifier s
15. Optional Unit Configuration Required Figure 84 Seismic electrical wiring High and low voltage connections field supplied and wired Seismic compensation Electric power through the top of the unit only AWD Field supplied disconnect switch Seismic within sight of the Liebert CRV E ej compensation eJ Wire per local codes Ze Af PU 224 A High and low voltage D connections field supplied P and wired CA Electric power through the bottom of the unit only Flexible conduit and strain relief must be provided by the field to allow the unit to move during a seismic event The flexible conduit musthave at least one bend between the DPN002765 rigid conduit connection at the unit cabinet and the connection e Pg 6 Rev 1 to the rigid conduit or foundation Liebert CRV 128 Seismic Application 600mm 24 Models Optional Unit Configuration Required Figure 85 Seismic piping Anchor piping to the Liebert CRV Field supplied and piped prefabricated seismic compensation piping Anchor piping to building foundati 6e uilding foundation SN Piping Through the Top All Models of the Liebert CRV The leveler feet must be down firmly against the top plate of the floor stand when unit is on a floor stand When unit is not on a floor stand the leveler feet must be down firmly against the floor Field supplied and piped prefabr
16. di W 575V Transformer 1079mm 742 1 2 44 1 8 Enclosure Option 1079mm 1121mm 15 1 4 Ew d Emerson recommends a clearance 387mm of 36 915mm on each side for proper ANCHOR PLAN operation and component access E aln Bui ji f v i See Figure 23 for typical m footprint dimensions x 357 8 l 8 910mm g 40 7 8 rh 1038mm n H DPNO002372 DPN002373 m a N Rev 4 Rev 6 Leg Height Height In mm A In mm B c 18 457 31 5 8 803 39 5 8 1006 36 914 49 5 8 1260 57 5 8 1464 48 1219 61 5 8 1565 69 5 8 1768 60 1524 73 5 8 1870 81 5 8 2073 18 legs standard for all models Cross bracing is required for legs longer than 18 457mm Number varies according to model and options See Tables 14 and 15 for weights including added weight for legs of various lengths Source DPN002372 Rev 2 DPN002373 Rev 6 Liebert CRV 34 Heat Rejection Liebert MC and Fin Tube Condensers Figure 21 Condenser planning dimensional data MCM040 MCM080 Height to Top of Fan Guard 575V Transformer Enclosure Option Emerson recommends a clearance of 36 915mm on each side for proper operation and component access 1168mm 15 1 4 a 46 5 16 387mm Height to Top 1177mm of Fan Guard 46 1 4 F lg d 39 5 16 D Lens One Fan 3 999 Condenser p pum SS t 44 3 8 o 1127mm m j 91
17. lt A Depth ze P LJ l Min Pad Thickness i JJ J l c 5 7 Specified by Engineer of Record ANCHOR DETAIL Anchor bolt sized per HILTI KWIK BOLT TZ carbon and stainless In concrete ICC ESR 1917 Alternates are subject to review by ISO VIEW ON FLOOR Emerson or engineer of record 14 4 44 1 2 1131mm 31mm I I ME 11 3 4 300mm B B 23 5 8 b 600mm O REAR FRONT o t OF OF UNIT UNIT 22 3 8 4 570mm B H es SN FLOOR ANCHORING DIMENSIONS 563 View from top of the Liebert CRV 14 29mm TYP Front and Rear Doors Not Shown DPNO002765 8 places Pg 4 Rev 1 Liebert CRV 126 Seismic Application 600mm 24 Models Optional Unit Configuration Required Figure 83 Floor stand overall dimensions Factory supplied plugs can be removed after unit is installed A H 38 3 8 976mm p 20 1 4 CRE 513mm i E a iai S DA 38 1mm p 64mm 4 6 117mm 9 1 2 J l i 241mm Foot 4 Places Threaded Rod 7 8 Grade 7 FOOT DETAIL and Neoprene Pad 1 8 Thick Foot provides 1 4 6 35mm See Part 307058P 1 for details adjustment from nominal height H DPNO002765 Pg 5 Rev 1 Table 57 Dimensions in Figure 83 A H Nominal in mm in mm 12 12 305 8 3 4 222 18 18 457 14 3 4 375 24 24 610 20 3 4 527 127 Liebert CRV Seismic Application 600mm 24 Models
18. 22 2 61 6 18 Sensible BTU H kW 73 6 21 6 58 9 17 3 Flow Rate GPM l s 15 4 1 11 4 0 7 Pressure Drop ft H20 kPa 18 4 55 1 9 8 29 3 80 F DB 62 8 F WB 26 7 C DB 17 1 C WB 37 RH Total BTU H kW 63 0 18 5 50 0 14 6 Sensible BTU H kW 61 6 18 1 48 5 14 2 Flow Rate GPM l s 11 9 0 8 10 3 0 7 Pressure Drop ft H2O kPa 4 3 12 8 8 2 24 4 Liebert CRV 90 Chilled Water Systems 600mm 24in and 300mm 12in Cabinets T 3 Physical Data 600mm 24in Units Table 45 Physical data Chilled water 600mm 24in wide models Fan Data 40kW Models Total Airflow CFM m h 3325 5650 Total Fan Motor hp kW 1 7 1 26 Number of Fans 2 Evaporator Coil Face Area ft m 7 26 0 674 Rows 6 Face Velocity FPM m s 459 0 2 33 Electric Reheat Single Stage Capacity BTU H kW 460V 20 472 6 0 208V 16 719 4 9 Steam Generating Humidifier Full Flow psi kPa Capacity Ib hr kg hr 5 0 2 3 Capacity kW 1 79 Condensate Pump Dual Float Type Capacity GPM l m 6 0 22 7 Filter Section Disposable Type MERV 8 Standard Pleated Filter Quantity 2 Nominal Size in mm 31 1 2 x 17 1 2 x 4 800 x 445 x 100 Effective Surface Area ft m 16 4 1 52 MERV 11 Optional Pleated Filter Quantity 2 Nominal Size in mm 31 1 2 x 17 1 2 x 4 800 x 445 x
19. ANCHOR PLAN 575V Transformer l N One Fan Condenser Enclosure Option B ANCHOR PLAN 1168mm 2 u 39 5 16 I m 999mm 44 3 8 1127mm DpN002172 Rev 5 DPNO002189 Rev 7 1177mm Dimensions In mm of A A 575V B Model Fans In mm In mm In mm In mm MCM040 1 57 3 16 1453 65 3 8 1661 48 1219 46 5 16 1177 MCMO080 2 105 1 4 2674 113 7 16 2882 96 1 16 2440 94 7 16 2398 18 legs standard for all models Cross bracing is required for legs longer than 18 457mm number varies according to model and options See Tables 14 and 15 for weights including added weight for legs of various lengths Source DPN002172 Rev 5 DPN002189 Rev 7 Height In mm Leg Height In mm Model D E F 39 5 8 1006 31 5 8 803 18 457 MCM040 57 5 8 1464 49 5 8 1260 36 914 MCMO80 69 5 8 1768 61 5 8 1585 48 1219 81 5 8 2073 73 5 8 1870 60 1524 Source DPN002172 Rev 5 DPN002189 Rev 7 35 Liebert CRV Heat Rejection Liebert MC and Fin Tube Condensers Figure 22 Condenser planning dimensional data MCL055 MCL110 Height to Top of TIEN C Guard 575V Transformer Enclosure Option Emerson recommends a clearance of 36 915mm on each side for proper operation and component access 1409mm ANCHOR PLAN E See Figure 23 for typical footprint dimensions
20. CR Water Glycol Coolant Return 1 1 4 FPT 32mm GAS F GD Gravity Coil Pan Drain 1 MPT 20mm I D GDH Gravity Humidifier Drain 22mm I D ws 1 2 FPT top connection 1 2 GAS F top connection HS Humidifier Supply 1 4 Compression Fitting bottom connection 3 4 GAS F bottom connection CP Condensate Pump 1 2 FPT 1 2 GAS F Combination Knockout Hole Diameter Combination Knockout Hole Diameter HVT High Voltage Top Connection 1 3 8 1 3 4 and 2 1 2 35mm 44 5mm and 63 5mm 35mm 44 5mm 63 5mm 1 3 8 1 3 4 2 1 2 High Volt Bottom Ent HVB feed through rears of the unit Knockout Hole Diameter 2 1 2 63 5mm Knockout Hole Diameter 63 5mm 2 1 2 LVT Low Voltage Top Connection 4 Knockout Holes Diameter 7 8 22mm 2 Knockout Holes Diameter 22mm 7 8 Low Voltage Bottom Entrance LVB feed through the base of the unit 2 Knockout Holes Diameter 1 3 32 27 8mm 2 Knockout Holes Diameter 28mm 1 7 64 Low Voltage Bottom Entrance LVB2 feed through the base of the unit Knockout Hole Diameter 1 3 4 44 5mm Source DPNO001793 Rev 3 73 Liebert CRV Liebert CRV Water Glycol Systems Figure 44 Piping connections 300mm 12in wide water glycol cooled models FRONT OF UNIT ypic 33 5 16 846mm DM CST CRT HVT LVT1 eI 11 13 16 300mm 22 5 16 567mm 27 13 16 707mm 1 9 16 40mm 2 3 4 70m
21. DPNO002807 Rev 4 Installation Depth Liebert CRV 72 Liebert CRV Water Glycol Systems 5 4 Piping Water Glycol Systems Figure 43 Piping connections 600mm 24in wide water glycol cooled models Piping and electrical connections available at the top and bottom of unit 105mm 1 1 8 28mm B 9 3 4 12 3 4 ear Top Connections a NEL 1 3 4 TN 17 516 mm B3mm 440mm 3 1 16 2 1516 e z 9 5 16 242mm 237mm 2 11 16 5 1 8 69mm 130mm 2 11 16 2 11 16 69mm 69mm 3 1 16 46 1 4 77mm Ill 1175mm 3 3 4 HvB 1 3 4 45mm 94 5mm 2 1 8 1 3 4 iG 55mm 45mm ig 1 1 2 3 7 8 98 4mm T 38mm we LVB2 5 3 8 136mm Q po 4 13 6 sies 2 3 16 56mm 122mm ee Bottom Connections A 56mm possible with raised floor e 23 5 8 5 7 16 aa E 600mm 138mm Install a 35 mesh strainer in an easily accessible location on the Water Glycol Supply to prevent particles from entering the heat exchanger Strainer bypass valves are recommended to allow the strainer to be cleaned while maintaining flow to the cooling unit DPNO001793 Rev 3 Unit Connections CR20W CR35W 60Hz CR20W CR35W 50Hz CS Water Glycol Coolant Supply 1 1 4 FPT 32mm GAS F
22. Do not use for specific connection locations 2 One or more additional pressure relief valves are required downscream of any And all field installed isolation Do not isolate any refrigerant curcuits from Overpressurization protection 3 Refer to outdoor condenser documents above for proper trap placement Optional Field Head Pressure Installed Fusible Control Valve Relief Valve Check Valve Service Valve NN i o o Liebert Lee Temp Receiver Liquid Return lt q Hot Gas Discharge For rises over 25ft 7 6m trap every 20ft 6m or evenly divided solation Valve T oo solation Valve n m Er Components are not supplied by Liebert but are required for proper circuit operation and should be located near the indoor Liebert CRV unit DPN002808 Rev 2 27 Liebert CRV Air Cooled Systems 3 9 Sound Data Air Cooled Systems Tables 9 and 10 show the sound pressure level in free field at 5ft 1 5m high and 6 1 2ft 2m in front of the air conditioner with compressor and fan in operation The sound data is without the Low Sound Package compressor jacket and sound deadening panel insulation installed Sound power is an absolute measurement that can be used for comparisons when all sound measurement parameters match exactly
23. Expansion Solenoid Sight Filter Drier LIQUID LINE Isolation Valve Valve ass Valve Trap at base Single refrigeration circuit shown for clarity of risers Schematic representation shown Do not use for specific connection locations Components are not supplied by over 5ft 1 5m Emerson but are required for Refrigerant piping proper circuit operation and Field piping maintenance V Service schrader access connection no valve core DPNO002188 Y Service schrader access connection with valve core Rev 3 Liebert CRV 46 Heat Rejection Liebert MC and Fin Tube Condensers 4 6 Field Piping Guidelines Liebert MC Condensers One discharge line and one liquid line must be field installed for each circuit of the indoor unit and the outdoor condenser s Dual circuit condensers are available for most dual circuit indoor unit applications Refer to Figures 29 through 31 for additional field installed piping needed at the condenser This piping is needed for proper system performance and for installation interconnecting receivers and head pressure control valves for Liebert Lee Temp systems 4 NOTE Keep the evaporator unit and condenser closed with their factory charge of inert gas while all field piping is installed Keep the field piping clean and dry during installation and do not allow it to stand open to the atmosphere When all the field interconnecting piping is in place vent the condenser s inert
24. HVT High Voltage Top Connection 44 5mm 1 3 4 and 63 5mm 2 1 2 1 3 4 44 5mm and 2 1 2 63 5mm High Voltage Bottom Entrance HVB feed through the base of the unit 1 Hole Diameter Diameter 63 5mm 2 1 2 1 Knockout Hole Diameter 2 1 2 63 5mm LVT Low Voltage Top Connection 2 Holes Diameter 2 Diameter 7 8 22mm 4 Knockout Holes Diameter 7 8 22mm Low Voltage Bottom Entrance LVB feed through the base of the unit 2 Holes Diameter 28mm 1 7 64 2 Knockout Holes Diameter 1 3 32 27 8mm Low Voltage Bottom Entrance LVB2 feed through the base of the unit 1 Hole Diameter 1 3 4 44 5mm Liebert CRV 24 Air Cooled Systems Figure 17 Connections Air cooled 300mm 12in models 33 5 16 846mm 43 1 8 1095mm FRONT OF UNIT 11 13 16 300mm 2 15 16 74mm 2 3 8 60mm 22 5 16 567mm 27 13 16 707mm 39 1 16 992mm FRONT OF UNIT 2 5 8 67mm i 3 5 16 76mm 84mm 3 11 16 94mm GD CPB LVB1 2 1 4 57mm Cutout for RLB RGB and GD CPB RLB RGB M 1 9 16 40mm BOTTOM CONNECTIONS 2 84 7omm possible with raised floor DETAIL A Piping and electrical connections available TOP CONNECTIONS at the top and bottom of unit DPNO002813 Rev 6 Top CR19 60Hz Bottom CR19 60Hz Connections Description Dimensions Connections
25. Pa 3 Rev 5 surfaces and high voltage wiring VIEW B B 2 Lower Terminals SOME COMPONENTS NOT SHOWN FOR CLARITY General wire routing paths shown Wiring must be run in conduit and must be inside Liebert CRV frame and panels Attach conduit to inside of rails with cable ties Control wiring must be run in separate conduit from power wiring For top entry routing see Figure 12 for bottom entry see Figure 13 99 Liebert CRV Chilled Water Systems 600mm 24in and 300mm 12in Cabinets Figure 55 Electrical field connections Disconnect views 3 E coxicTuns ONLY Taare coumucToRs omy Rd coumucToRs oxy L1 L2 L3 6 ETE ong ce ines RO EHE M pea D Fnit O00 E 5 eri eu ei ei Ss 208 230V 460V Wye 208 230V 1 Phase 120V Cord Connected 3 Phase 3 Phase Neutral Ground CW Only CW Only DPNO002810 Pg 4 Rev 5 Figure 56 Power supply requirements for 300mm 12 wide 460V Liebert CRV models Ph A Phase A use Phase B Neutral Phase B Phase C Ph C ase Ground 460V Wye Power Supply Connection 460V Delta Power Supply Connection 3 Phase Neutral Ground NOTICE Risk of improper input power Can cause equipment damage The 460V Liebert CRV 300mm 12in unit is designed to operate with wye conne
26. The angles of the vanes have been optimized to effectively distribute air to heat generating equipment in a wide variety of applications Liebert iCOM Control System The Liebert CRV is controlled by the Liebert 1COM 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 LED s and a three level password protection system Unit to Unit communication with other Liebert CRV s and two Liebert IntelliSlot communication card housings are included as standard 2T Rack Temperature Sensors Each consists of a vented case with two temperature probes Three 2T rack sensors are standard with each Liebert CRV Up to ten 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 in a daisy chain configuration Remote Shutdown Terminal Provides a locat
27. contacts for remote indication of unit alarms Cabinet The exterior steel panels are custom powder coated to protect against corrosion The double wall side panels separate the half inch 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 81 open area The rear door utilizes a Knurr rack style handle and hinges Service Access All service and maintenance is performed through the front or 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 inch filters rated MERV8 based on ASHRAE 52 2 2007 located in the cabinet and accessible from the rear of the unit A filter clog alarm is included 111 Liebert CRV Chilled Water Systems 600mm 24in and 300mm 12in Cabinets Locking Disconnect Switch A molded case circuit interrupter disrupts the flow of power to the unit The electric panel high voltage compartment can be accessed only with the switch in the Off position Conveniently located behind the Liebert iCOM display door for quick access 65 000 Amp Short Circuit Current Rating SCCR The electrical panel provides a 65k amp SCCR 7 13 600mm
28. 100 Effective Surface Area ft m 16 4 1 52 Motorized Ball Valve Maximum Allowable Pressure psi KPA 325 2241 Maximum Close Off Pressure psi KPA 200 1379 Maximum Differential Pressure 50 345 91 Liebert CRV Chilled Water Systems 600mm 24in and 300mm 12in Cabinets 7 4 7 5 Physical Data 300mm 12in Units Table 46 Physical data Chilled water 200mm 12in wide models Model CR032RC1 Fan Data Total Airflow CFM m3 h 2550 4332 Total Fan Motor hp kW 1 3 0 98 Number of Fans 6 Evaporator Face Area ft m 7 75 0 72 Rows 3 Face Velocity 329 1 67 Condensate Pump Dual Float Capacity GPM l m Filter Section 208V condensate pump rated for 0 77GPM at 13 ft 2 8 I m at 3 9m of total head pressure 230V condensate pump rated for 0 90 GPM at 13 ft 3 4 I m at 3 9m of total head pressure 266V condensate pump rated for 0 81 GPM at 13 ft 3 1 I m at 3 9 m of total head pressure 115V condensate pump rated for 0 96 GPM at 13 ft 3 6 I m at 3 9 m of total head pressure Washable MERV1 Quantity 2 Nominal Size in mm 36 X 10 X0 4 914 X 254 X 10 Effective Surface Area ft m 2 4 0 22 2 MERV8 Quantity 2 Nominal Size in mm 36 X 10 X2 914 X 254 X 51 Effective Surface Area ft m 5 8 0 54 Motorized Ball Valve Maximum Allowable Pressure PSI kPa 325 2241 Maximum Close off Pressu
29. 2 16 6 1 System Requirements All material and equipment used shall be standard components regularly manufactured and available and not custom designed especially for this project All systems and components shall have previously been thoroughly tested and proven in actual use before installation on this project The manufacturer will furnish or supply a site specific Critical Infrastructure Management software system based on customer requirements The system must be a software only solution no substitutions shall be accepted The system architecture shall consist of network interface cards that shall be installed in all critical infrastructures that at a minimum support HTTP and SNMP simultaneously The system shall receive SNMP traps from managed equipment and display the alarm notification in a graphical user interface The system shall be based on SNMP open protocols and shall integrate seamlessly with Emerson Network Power Aperture software suite and Network Management Systems Liebert CRV 148 Guide Specifications Row Based Environmental Control System Open protocol support shall include HTTP s TCP IP v4 TCP IP v6 SNMPv1 SNMPv2 The system shall have the capability of being remotely monitored and managed 24 hours a day 7 days a week by the manufacturer The system shall have the ability to be deployed worldwide The system shall operate as a client to server application The Web interface of each mana
30. 23 RH Total KBTU H kW 79 8 23 4 82 9 24 3 131 7 38 6 130 1 38 1 Sensible KBTU H kW 79 8 23 4 82 9 24 3 130 0 38 1 129 37 8 90 F DB 66 2 F WB 32 2 C DB 19 0 C WB 27 RH Total KBTU H kW 76 1 22 3 79 1 23 2 127 5 37 4 125 9 36 9 Sensible KBTU H kW 76 1 22 3 79 1 23 2 121 3 35 5 120 5 35 3 85 F DB 64 5 F WB 29 4 C DB 18 1 C WB 31 RH Total KBTU H kW 72 8 21 3 76 1 22 3 123 8 36 3 122 2 35 8 Sensible kBTU H kW 71 9 21 1 73 8 21 6 112 0 32 8 111 2 32 6 80 F DB 62 8 F WB 26 7 C DB 17 1 C WB 37 RH Total KBTU H kW 70 5 20 7 73 8 21 6 120 3 35 2 118 8 34 8 Sensible KBTU H kW 65 5 19 2 67 1 19 7 102 3 30 0 101 5 29 7 1 The net capacity data has fan motor heat factored in for all ratings 2 Capacity data is factory certified to be within 596 tolerance 3 Data rated with standard filter Liebert CRV Air Cooled Systems Table 3 Physical data 600mm 24in air cooled systems Parameter Fan Data CRO20RA CRO35RA Total Airflow CFM m h 2454 4170 3260 5540 Total Fan Motor hp kW 0 8 0 6 1 4 1 06 Number of Fans 2 Evaporator Coil Face Area ft m 7 26 0 674 Rows 4 5 Face Velocity FPM m s 339 1 72 449 2 28 Electric Reheat Single Stage Capacity BTU H kW 460V 20 472 6 0 208V 16 719 4 9 Steam Generating Humidifier Capacity
31. 24in Chilled Water Optional Features Source DPN001909 Revision 5 Dual float Condensate Pump lIt 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 sends a signal to the local alarm and shuts 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 Liebert 1COM 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 n air gap within the humidifier assembly prevents back flow 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 Two Way Modulating Valve A two way modulating valve controls the chilled water flow passing through the cooling coil The Liebert 1COM manages the valve actuator movement to provide the desired amount of cooling for various entering water temper
32. 37 and 38 with field supplied normally closed switch having a minimum 75VA 24VAC rating Use field supplied Class 1 wiring Customer Alarm Inputs Terminals for field supplied normally closed contacts having a minimum 75VA 24VAC rating between Terminals 3 and 50 Terminals 2 and 51 Terminals 5 and 55 or Terminals 3 and 56 Use field supplied Class 1 wiring Terminals 5 and 55 not available when optional condensate pump 1s installed Common Alarm On any alarm normally open dry contact is closed across Terminals 75 and 76 for remote indication 1A 24VAC maximum load Use field supplied Class 1 wiring Heat Rejection Interlock On any call for compressor operation normally open dry contact is closed across Terminals 70 and 71 to heat rejection equipment 1A 24VAC maximum load Use field supplied Class 1 wiring CANbus Connector Terminal block with Terminals 49 1 CAN H and 49 3 CAN L SH shield connection The terminals are used to connect the CANbus communication cable provided by others from the indoor unit to the Liebert MC Premium Model CANbus Cable CANbus cable provided by others to connect to the outdoor condenser No special considerations are required when the total external cable connection between the indoor unit and outdoor unit s is less than 450 ft 137m A CANbus isolator is required for total external cable connections greater than 450 ft 137m but less than 800 ft 243m Cable must meet the following
33. 40kW CW Since the fans are spinning at partial speed during normal operating conditions the energy consumption is much lower than the nameplate rating of the motors This provides the same energy saving benefits of using smaller size fans without the risk of running short on airflow Liebert CRV 122 Extra Airflow Standard on 600 Series Configurable on 300 Series Figure 80 Nominal Energy Consumption of Both Fans Normal Operation Extra Airflow Total Power Consumed by Both Fans kW 50 60 70 80 90 100 110 120 130 Fan Speed Percentage Liebert CRV 20kW DX Liebert CRV 35kW DX 4 Liebert CRV 40kW CW 123 Liebert CRV Seismic Application 600mm 24 Models Optional Unit Configuration Required APPENDIX C SEISMIC APPLICATION 600MM 24 MODELS OPTIONAL UNIT CONFIGURATION REQUIRED C 1 C 2 Source DPN002765 Rev 1 Emerson Network Power has conducted analytical modeling and dynamic shake table testing of the Liebert CRV 600mm to provide an option for seismic certification of compliance with the International Building Code IBC code for design and installation of building systems This certification goes beyond the equipment s ability to withstand forces in a seismic event The IBC approach includes the equipment equipment anchorage and connections to the equipment power water supply and return and ducting In critical applications the equipment must be capable of perf
34. 68 Equipment is qualified for Sps and z h values shown Qualification may be valid for varying Sps where z h lt 1 0 ANCHORAGE REQUIREMENTS Anchors Mounting requirement details such as brand type embedment depth edge spacing anchor spacing concrete strength wall bracing and special inspection must be outlined and approved by the project structural engineer of record Anchorage Surface Structural floors and housekeeping pads must also be seismically designed and approved by the project structural engineer of record to withstand the seismic anchor loads as defined on the installation drawings The installing contractor is responsible for the proper installation of all anchors and mounting hardware observing the mounting requirement details outlined by the Engineer of Record Contact the manufacturer s representative if a detailed seismic installation calculation package is required Connections to Unit Electrical wiring conduit and other connections to the equipment is the responsibility of others Data and recommendations are supplied here and in the unit installation supplement for seismic installation Liebert CRV 124 Seismic Application 600mm 24 Models Optional Unit Configuration Required Figure 81 Seismic anchorage rigid floor stand dimensions ANSI B18 22 1 Type A BELL Series W Plain Washer required at each a
35. Condenser Model Line in mm Line in mm Weight Ib kg TCSV28K 7 8 22 2 325 148 TCSV60K 1 1 8 28 6 7 8 22 2 470 213 TCSV90K 1 1 8 28 6 7 8 22 2 670 304 Interconnection piping field supplied and installed required Configure piping for parallel refrigerant flow between condenser sections Source DPN001624 Rev 8 Pp 2 and 3 Table 25 Recommended refrigerant line sizes for Liebert air cooled VFD control fin tube condensers with R 410A with and without Liebert Lee Temp Cu OD Total Equivalent Hot Gas Line Liquid Line Model Length ft m in m in m 50 15 2 3 4 19 1 5 8 15 9 100 30 5 3 4 19 1 5 8 15 9 CRO20RA 150 45 7 3 4 19 1 5 8 15 9 300 91 4 7 8 22 2 3 4 19 1 50 15 2 7 8 22 2 3 4 19 1 100 30 5 7 8 22 2 3 4 19 1 CRO35RA 150 45 7 7 8 22 2 3 4 19 1 300 91 4 1 1 8 28 6 7 8 22 2 1 Consult factory for proper line sizing for runs longer than 300 ft 91 4m equivalent length 2 Must downsize vertical riser one trade size 1 1 8 to 7 8 or 7 8 to 3 4 3 Source DPN001624 Rev 8 Pg 3 Liebert CRV 56 Heat Rejection Liebert MC and Fin Tube Condensers Figure 38 Fin tube condenser piping R 410A single circuit with Liebert Lee Temp Discharge Line from Unit field supplied Liquid Return Line to Unit field supplied Position elbow to direct r
36. Connections Optional Features 600mm 24in units Source DPN001884 Rev 7 Pg 1 13 14 15 16 Condensate Pump High Water Alarm available when optional pump is installed On pump high water indication normally open dry contact is closed across Terminals 88 and 89 for remote indication 1A 24VAC maximum load Use field supplied Class 1 wiring Liebert Liqui tect Shutdown and Dry Contact available when optional Liebert Liqui tect sensor is installed On Liebert Liqui tect activation normally open dry contact is closed across Terminals 58 and 59 for remote indication The Liebert Liqui tect sensor notifies the Liebert 1COMS of indication through Terminals 60 and 61 1A 24VAC maximum load Use field supplied Class 1 wiring Reheat and Humidifier Lockout Remote 24VAC required at Terminals 82 and 83 for lockout of reheat and humidifier Additional Common Alarm On any alarm one additional normally open dry contact is closed across Terminals 94 and 95 for remote indication 1A 24VAC maximum load Use Class 1 field supplied wiring NOTE Refer to specification sheet for total unit full load amps wire size amps and maximum overcurrent protective device size NOTICE Risk of improper input power Can cause equipment damage The electronically commutated motors included in the Liebert CRV included in 480V CR035 and CR040 units are suitable for connection to an electrical service providing input power to the
37. FPT top connection 1 4 Compression Fitting bottom connection CP Condensate Pump 1 2 FPT Combination Knockout Hole Diameter 1 3 8 35mm 2 feed through the base of the unit HVT High Voltage Top Connection 1 3 4 44 5mm and 2 1 2 63 5mm High Voltage Bottom Entrance 419 HVB feed through the base of the unit Knockout Hole 1 Diameter 2 1 2 63 5mm LVT Low Voltage Top Connection Knockout Holes 4 Diameter 7 8 22mm Low Voltage Bottom Entrance LVB feed through the base of the unit Knockout Holes 2 Diameter 1 3 32 27 8mm SEHE otage PORON M ned Knockout Hole 1 Diameter 1 3 4 44 5mm Source DPNO001794 Rev 2 Liebert CRV 106 Chilled Water Systems 600mm 24in and 300mm 12in Cabinets Figure 63 General arrangement diagram Chilled water CR040 600mm 24 wide models NOTE Schematic representation shown Chilled Do not use for specific connection locations Water Coil Air Bleed Valve a AB 3 Way Motorized Ball Valve Configuration L Plug Pipe Chilled Water Return Top of Unit Connection Plug Pipe Chilled Water Return Bottom of Unit Connection Plug Pipe Chilled Water Supply Top of Unit Connection Factory Chilled Water Piping Plug Pipe Chilled Water Suppl Isolation valves should be installed near the Liebert CRV Bottom of Unit Secon E 986 Isolation valves are not supplie
38. Includes the necessary relays to disable the reheat and humidifier from an external 24V signal One 1 Extra Common Alarm Contact Provides two sets of normally open N O contacts for remote indication of unit alarms Liebert Liqui tect Sensor This solid state water sensor has no moving parts and is hermetically sealed to keep out dust and dirt The alarm system is activated when the sensor detects the presence of moisture Liebert CRV 30 Air Cooled Systems 3 12 Standard Features 300mm 12in Air Cooled Systems Source DPN002811 Rev 5 DX Cooling Coil The evaporator coil has 6 46 ft 0 60 m face area three rows deep It is constructed of copper tubes and hydrophilic coated aluminum fins The hydrophilic coating provides superior water carryover resistance stainless steel condensate drain pan is provided Refrigeration System Single refrigeration circuit includes a liquid line filter dryer 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 20 100 commonly known as a digital scroll Compressor solenoid valve unloads the compressor to provide variable capacity operation The compressor has a suction gas cooled motor vibration isolators internal thermal overloads manual reset high pressure switch rotalock service valves low p
39. Installed Control Valve Relief Va Fusible Plug Check Valve la X o f Condenser Coil VFD Transducer VFD i m t al i Hot Gas Discharge ZN o Condenser Coil Lielbert Lee Temp Lee Temp Receiver l l Liquid Return l qa Ex d n Hot Gas Discharge pE UE SWS A ERAN PEN ZENE SN TESTI Liebert CRV and Associated Piping Solenoid Expansion Filter Sight g Valve Valve Distributor Drier Glass Oe Evaporator Coil Sensing External Equalizer Bulb CRO020 Digital Service Valve Solenoid Valve High Pressure E Transducer O 3 Vibration Absorber High Pressure f Traps Every Cut Out Suction Line 15ft 4 6m Low Pressure Transducer of Rise CR035 Digital Solenoid Valve Service Valve Digital Scroll ee Compressor Vibration Absorber Check Valve Peoia NS Hot Gas Discharge Isolation Valve Liquid Return Factory refrigerant piping Components are not supplied by Field piping Emerson but are required for V Service Schrader access connection no valve core proper circuit operation and maintenance Should be located Service Schrader access connection with v
40. Liebert CRV units to communicate through two CAT5 or better network patch cables with RJ 45 connectors to connect devices to available ports The number of ports available for Ethernet ready devices varies by the number of eight port switches included The Liebert iCOM display provided with the optional Liebert vNSA uses one port for connection to the switch The 16 port model uses two ports to interconnect the switches of Ports Needed to Connect Maximum To Liebert Upper amp Lower Ports Liebert CRV s Model Ports iCOM Display Switches Available that may be connected vNSA8 iCOM CR 8 1 N A 7 3 Units vNSA16 iCOM CR 16 1 2 13 6 Units 147 Liebert CRV Guide Specifications Row Based Environmental Control System 2 16 Communication Interfaces 2 16 1 Remote Shutdown Terminal The remote shutdown terminal shall provide a location to remotely shut down the unit complying with the National Fire Code 2 16 2 Common Alarm Contact The common alarm contact shall provide a set of normally open contacts for remote indication of unit alarms 2 16 3 Liebert CRV 600mm Cabinet Reheat Humidifier Lockout The reheat and humidifier lockout shall include the necessary relays to disable the reheat and humidifier from an external 24V signal while on emergency power 2 16 4 Liebert CRV 600mm Cabinet Model 20 35 and 40 One Extra Common Alarm Contact One additional contact total of two sets of normal
41. Rejection KBTU H KW 109 6 28 3 109 4 32 1 100 F DB 69 1 F WB 37 8 C DB 20 6 C WB 20 RH Total KBTU H KW 86 4 25 3 85 8 25 2 Sensible KBTU H kW 86 4 25 3 85 8 25 2 Flow Rate GPM l s 17 6 1 1 17 6 1 1 Pressure Drop ft water kPa 39 7 118 7 39 5 118 7 Heat Rejection KBTU H kW 105 6 30 9 105 4 30 9 95 F DB 67 4 F WB 35 C DB 19 7 C WB 23 RH Total KBTU H kW 83 2 24 4 82 5 24 2 Sensible KBTU H kW 81 8 24 0 81 4 23 9 Flow Rate GPM l s 17 1 1 1 17 1 1 1 Pressure Drop ft water kPa 37 4 111 7 37 4 111 7 Heat Rejection KBTU H kW 102 2 30 101 9 29 9 90 F DB 65 9 F WB 32 2 C DB 18 8 C WB 27 RH Total KBTU H kW 80 8 23 7 80 23 5 Sensible KBTU H kW 76 22 3 75 7 22 2 Flow Rate GPM l s 16 6 1 05 16 6 1 05 Pressure Drop ft water kPa 35 3 105 6 35 3 105 6 Heat Rejection KBTU H kW 99 7 29 2 99 4 29 1 85 F DB 64 5 F WB 29 4 C DB 18 05 C WB 31 RH Total KBTU H kW 78 1 22 9 77 4 22 7 Sensible KBTU H kW 70 5 20 7 70 2 20 6 Flow Rate GPM l s 16 2 1 03 16 2 1 03 Pressure Drop ft water kPa 33 7 100 8 33 7 100 8 Heat Rejection KBTU H kW 97 28 4 96 7 28 3 80 F DB 62 5 F WB 26 6 C DB 16 94 C WB 37 RH Total KBTU H kW 76 1 22 3 75 4 22 1 Sensible KBTU H kW 64 1 18 8 63 8 18 7 Flow Rate GPM l s 15 9 1 0 15 9 1 0 Pressure Drop ft water kPa 32 5 97 3 32 5 97 3 Heat Rej
42. SHIELD CONNECTION Ilo CO 2 LO 1 3J Mot CD Factory Wiring Between Liebert iCOM and Terminal Strip Liebert CRV COMPONENT NOTES 1 Component appearance orientation and position may vary Terminal names and callouts remain constant Hot C Io C Hoty C Io C Hoty CD Heat Rejection Interlock B WIRE NOTES B CABLE NOTES A 1 Field supplied cable e shielded e 22 18AWG stranded tinned copper e twisted pair minimum four twists per foot e low capacitance 15pf ft or less e must be rated to meet local codes and conditions e Examples Belden 89207 plenum rated or Alpha Wire 6454 Category 5 5e or higher 1 Field supplied wire e 18AWG or greater e rated 600V 2 Run two wires from indoor unit to condenser s DPNO002841 Rev 3 2 Do not run in same conduit raceway or chase as high voltage wiring 3 Contact factory for CANbus network lengths greater than 350ft 107m 41 Liebert CRV Heat Rejection Liebert MC and Fin Tube Condensers Figure 26 CANbus communication connection Liebert CRV 300mm 12 in and Liebert MC premium unit J6 Termination jumper must be set to Pins 1 and 2 CANbus Addressing Switch Condenser ON annia CAN Se Detail1 CAN Cable A Connection Shield Connection Factory Wiring Between Liebert MC Control Board Low voltage field entrance and Te
43. Two stainless steel condensate drain pans shall be provided Model CR019 The direct expansion slab cooling coil shall have 6 2ft 0 576 m face area three rows deep It shall be constructed of copper tubes and hydrophilic coated aluminum fins The hydrophilic coating shall significantly improve the speed of condensate drainage from the fins and shall provide superior water carryover resistance One stainless steel condensate drain pan shall be provided 2 1 2 3 Compressor The compressor shall be scroll type with variable capacity operation from 20 10096 commonly known as a digital scroll Compressor solenoid valve shall unload the compressor to provide variable capacity operation The compressor shall have a suction gas cooled motor vibration isolators internal thermal overloads manual reset high pressure switch rotalock service valves low pressure and high pressure transducer crankcase heater internal centrifugal oil pump and an operating speed of 3500 rpm at 60Hz 2900rpm 50Hz The compressor shall be located outside the airstream and shall be removable and serviceable from the rear of the unit 2 1 2 4 R410A Refrigerant The system shall be designed for use with R410A refrigerant which meets the U S Clean Air Act for phaseout of HCFC refrigerants Liebert CRV 138 Guide Specifications Row Based Environmental Control System 2 1 2 5 Low Noise Package The Low Noise Package shall reduce the level of sound emi
44. a toll free telephone number Warranty parts and labor per the manufacturer s warranty statement Vendor shall be ISO 9001 listed for design and manufacture of environmental control systems for Critical Monitoring and Control applications 2 16 7 Liebert IntelliSlot SiteLink E Card The Liebert IntelliSlot SiteLink E Card shall provide ground fault isolated connection to a Liebert SiteLink E for monitoring and management Liebert SiteLink E supports Emerson interfaces as a BACnet router that provides the communication link between Liebert units and other protocols and modules The Liebert SiteLink E is designed to communicate with Liebert equipment cooling units UPS s and PDU s and route the information over a BACnet Modbus or LONWorks network to a Building Automation System BAS workstation This shall be required for communication with Liebert SiteScan Web 4 0 or newer 2 16 8 Liebert Liqui tect 410 Point Leak Detection Sensor for Remote Mounting A total of quantity solid state water sensor s with no moving parts and hermetically sealed to keep out dust and dirt shall be provided The Liebert Liqui tect 410 LT410 shall provide a single point detection of leaks The point detection sensor shall have two gold plated sensing probes to prevent corrosion resistance and to provide accurate readings The LT410 shall constantly monitor points for leaks internal faults and power failures and warn of any abnormal conditions Mo
45. and Weights Liebert Fin Tube Condensers 0000 cee eee 51 4 9 Electrical Field Connections Fin Tube 0 0 c cece teen eee enee 53 4 9 1 Features Liebert Air Cooled R 410A Fin Tube Condensers with Liebert Lee Temp 54 4 10 Piping Liebert Fin Tube Condensers annaa c ccc eee eee eens 55 4 11 Liebert Air Cooled R 410A VFD Control Fin Tube Condensers Features 58 4 11 1 Features Liebert Air Cooled R 410A VFD Control Fin Tube Condensers 58 4 11 2 Optional Features Liebert Air Cooled R 410A VFD Control Fin Tube Condensers 58 5 0 5 1 5 2 5 8 5 4 5 5 5 6 5 7 5 8 5 9 6 0 6 1 6 2 6 3 6 4 7 0 7 1 1 2 7 3 7 4 7 5 7 6 T 7 8 7 9 7 10 7 11 7 12 LIEBERT CRV WATER GLYCOL SYSTEMS cles 59 Capacity and Physical Data 600mm 24in Models 20 0 00 ccc ee eee 59 5 1 1 Operating Limits for Water Glycol Cooled Units 0 0 eens 65 Electrical Data Water Glycol Models 0 0 llle 65 5 2 1 Electrical Connections Standard Features 600mm 24in Water Glycol Units 66 5 2 2 Electrical Connections Optional Features 600mm 24in Water Glycol Units 67 5 2 3 Electrical Connections Standard Features 300mm 12in Water Glycol Units 69 5 2 4 Electrical Connections Optional Features 300mm 12in Water Glycol Units 70 5 2 5 Wye vs Delta Connection Power Supply for 460V 300m
46. draw through design The condenser shall have a total heat rejection capacity of kW kBtuh rated at an outdoor ambient of F C and a midpoint condensing temperature of F C and a refrigerant flow to produce a subcooling of 5 F 2 8 C The unit shall be supplied for operation using a volt phase Hz power supply Submittals Submittals shall be provided with the proposal and shall include Single Line Diagrams Dimensional Electrical and Capacity Data Piping and Electrical Connection Drawings PRODUCT Cooling System Air Cooled Refrigeration System Refrigeration System The single refrigeration circuit shall include a liquid line filter drier a refrigerant sight glass with moisture indicator an adjustable externally equalized expansion valve and a liquid line solenoid valve The indoor evaporator refrigerant piping shall be spun shut with a nitrogen holding charge Field relief of the Schrader valve shall indicate a leak free system 2 1 1 2 Hydrophilic Coated Evaporator Coil Models CR020 CR035 The direct expansion tilted slab cooling coil shall have 7 25 ft 0 674 m face area four or five rows deep It shall be constructed of copper tubes and hydrophilic coated aluminum fins The hydrophilic coating shall significantly improve the speed of condensate drainage from the fins and shall provide superior water carryover resistance Two stainless steel condensate drain pans shall be provided Model CR019 The
47. eu Satie at bed eae US Res A 3 Placing Liebert CRV Units in Rows of Racks for Efficiency llle AA Placement 1m the Room ciaren eS sae ack xd ERES Senes ac se Pah ow AUR E pu EURO aes A 5 Redundancy Arrangement eee s A 6 Liebert CRV Applied in SmartAisle Cold Aisle Containment 04 A 7 Liebert CRV and Liebert XD Systems 0 cece eee cece eee araara APPENDIX B EXTRA AIRFLOW STANDARD ON 600 SERIES CONFIGURABLE ON 300 SERIES ez stessi E N ois a ace det a v Dn e Pus P DU dvi EE APPENDIX C SEISMIC APPLICATION 600MM 24 MODELS OPTIONAL UNIT CONFIGURATION REQUIRED eL Eesui me So eee Feo SOUL eee eee yug ss C 1 Seismic Certification Criteria eee C 2 Anchorage Requirements lee e e e e e s APPENDIX D GUIDE SPECIFICATIONS ROW BASED ENVIRONMENTAL CONTROL SYSTEM iii Model Number Nomenclature 25 Digit Configuration Number 1 MODEL NUMBER NOMENCLATURE 25 DIGIT CONFIGURATION NUMBER 1 Model Part 1 Model Details Model Part 2 1 2 C R02 0 3 4 5 6 7 8 9 10 11 12 13 RA 1 C 7 S D 1 14 15 16 17 18 19 20 21 22 23 24 25 8 1 1 E L 1 0 PLA Digits 1 2 Unit Family Liebert CRV CR Digits 3 5 Nominal Capacity kW DX 019 300mm 12 wide 020 035 600mm 24 wide CW 032 300mm 12 wide 040 600mm 24 wide Digit 6 Row Based Unit Depth R 1100mm 43 4 Digit 7 System Type A Air Cooled W Wat
48. in for all ratings 2 Capacity data is factory certified to be within 5 tolerance Liebert CRV 64 Liebert CRV Water Glycol Systems 5 1 1 5 2 Operating Limits for Water Glycol Cooled Units Table 34 Operating limits for water glycol cooled units Maximum Minimum Entering Maximum Close Off Water Temperature F C Water Pressure Pressure Models psi kPa psi kPa Design Condition CRO20RW CRO19RW 230 1586 43 5 300 75 23 8 CRO35RW 230 1586 43 5 300 Electrical Data Water Glycol Models Table 35 Electrical data Water glycol 600mm 24in models CRO35RW CRO20RW Voltage 460 3 60 208 3 60 460 3 60 208 3 60 Dehumidification With or Without Humidifier Reheat Condensate Pump FLA 32 2 62 0 24 2 50 8 WSA 39 1 75 4 29 2 61 4 OPD 50 100 35 80 Dehumidification Humidifier and Condensate Pump NO Reheat FLA 28 4 53 8 20 4 42 6 WSA 33 4 63 1 23 5 49 1 OPD 50 100 35 70 Dehumidification and Condensate Pump NO Reheat NO Humidifier FLA 24 7 45 4 16 7 34 2 WSA 29 7 54 7 19 8 40 7 OPD 45 90 30 60 Dehumidification and Reheat NO Condensate Pump NO Humidifier FLA 31 0 59 7 23 0 48 5 WSA 37 9 73 1 28 0 59 1 OPD 50 100 35 80 Dehumidification NO Reheat NO Humidifier NO Condensate Pump FLA 23 5 43 1 15 5 31 9 WSA 28 5 52 4 18 6 38 4 OPD 45 80 30 60 FLA Full Load Amps WSA Wire Size Amps OPD Maxim
49. in the rear of the Liebert CRV 6 This document is not to be used for field installation REAR Door Open Top of Leveling Foot Anchoring to Floor Detail on Figure 82 L 563 14 3mm Typical 3 Places 1 4 14 Self Drilling Screws Supplied 8 Places Bracket Supplied Front and Rear DETAILA Front of Liebert CRV DPNO002765 Pg 9 Rev 1 131 Liebert CRV Seismic Application 600mm 24 Models Optional Unit Configuration Required Figure 88 Rigid floor mount bracket dimensions ISO VIEW ON FLOOR 44 1 2 1131mm EE on 31mm 1 1 4 33mm 4 i i i sof 1 i 11 3 4 300mm H 23 5 8 REAR FRONT h 600mm OF UNIT orUNT o 22 3 8 i 570mm ee 1 Y FLOOR ANCHORING DIMENSIONS 9 563 View from Top of the Liebert CRV DPNO003272 i Front and Rear Doors Not Shown Pg 1 Rev 0 Liebert CRV 132 Seismic Application 600mm 24 Models Optional Unit Configuration Required Figure 89 Rigid floor mount bracket connection details FRONT Baffle Panel Not Shown 8 Places Bracket Supplied Front and Rear A 1 4 14 Self Drilling S
50. is 230 PSI 1586 kPa 2T Rack Temperature Sensors Each consists of a vented case with two temperature probes Three 2T rack sensors are standard with each Liebert CRV Up to ten 2T housings 20 temperature probes can be connected to a Liebert CRV300 One 2T housing and both sensor probes are to be attached to a rack the Liebert CRV is cooling 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 in a daisy chain configuration Liebert CRV 80 Liebert CRV Water Glycol Systems 5 9 Remote Shutdown Terminal Provides a location to remotely shut down the unit Common Alarm Contact Provides 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 unit is mounted on casters for quick installation and provided with leveling feet The perforated inlet and outlet panels have 81 open area The front door is hinged the rear door may be lifted off the unit Service Access All service and maintenance is performed through the front or rear of the
51. maximum load Use field supplied Class 1 wiring Heat Rejection Interlock On any call for compressor operation normally open dry contact is closed across Terminals 70 and 71 to heat rejection equipment 1A 24VAC maximum load Use field supplied Class 1 wiring CANbus Connector Terminal block with Terminals 49 1 CAN H and 49 3 CAN L SH shield connection The terminals are used to connect the CANbus communication cable provided by others from the indoor unit to the Liebert MC Premium model CANbus Cable CANbus cable provided by others to connect to the outdoor condenser No special considerations are required when the total external cable connection between the indoor unit and outdoor unit s is less than 450 ft 137m A CANbus isolator is required for total external cable connections greater than 450 ft 137m but less than 800 ft 243m Cable must meet the following specifications Conductors 22 18AWG stranded tinned copper Twisted pair minimum four twists per foot 305mm Braided shield or foil shield with drain wire Low capacitance 15pF ft or less UL approved temperature rated to 167 F 75 C UL approved voltage rated to 300V UV resistant and moisture resistant if not run in conduit Plenum rated NEC type CMP if required by national or local codes Examples Belden 89207 plenum rated or Alpha Wire 6454 Category 5 5E or higher Liebert CRV 12 Air Cooled Systems 3 5 Electrical
52. reus som grounding wire pore rie when factory disconnect is supplied y g 4 sev 53 Liebert CRV Heat Rejection Liebert MC and Fin Tube Condensers Figure 35 Liebert air cooled R 410A fin tube condensers with Liebert Lee Temp 4 9 1 DPNO001623 Pg 1 Rev 7 Features Liebert Air Cooled R 410A Fin Tube Condensers with Liebert Lee Temp Source DPN001623 Pg 1 Rev 7 Coil Coil is constructed of copper tubes in a staggered tube pattern Tubes are expanded into continuous rippled or enhanced aluminum type fins The fins have full depth fin collars completely covering the copper tubes which are connected to heavy wall type L headers Inlet coil connector tubes pass through relieved holes in the tube sheet for maximum resistance to piping strain and vibration Coils are factory leak tested at a minimum of 475 PSIG dehydrated then filled and sealed with an inert gas holding charge for shipment Fan s Blades are constructed of aluminum with a diameter of 26 inches 660 4mm and secured to the fan shaft by a heavy duty painted steel hub with set screw Fan guards are heavy gauge close meshed steel wire with corrosion resistant finish Fans are factory balanced and tested before shipment Fan Motor s Provided with rain slingers permanently lubricated bearings and individual built in overload protection Motors are rigidly mounted on die formed galvanized steel supports Head Pressure Control A Liebert Le
53. unit with 300V or less line to ground potential only Acceptable Unit Input Electrical Service for 460V 480V Nominal Units 480V wye with solidly grounded neutral and 277V line to ground Unacceptable Unit Input Electrical Service for 460V 480V Nominal Units Wye with high resistance or impedance ground Delta without ground or with floating ground Delta with corner ground Delta with grounded center tap 13 Liebert CRV Air Cooled Systems Figure 6 Electrical field connection locations 600mm 24in units Refer to 3 4 Electrical Connections Standard Features 600mm 24in units and 3 5 Electrical Connections Optional Features 600mm 24in units for keys to numbered components aQ Unit Top 2 1 2 64mm Field High Voltage Knockout 1 3 32 28mm Field Low Voltage Knockout Q Se Hs HV HON SO SO SOO SOS c HOO OVERLOAD PROTECTORS o CONTACTORS UNIT DISCONNECT SWITCH Id jiener Typically 2 1 3 4 44 5mm Field Low Voltage CANbus Knockout Factory Terminals DPN001884 Pg 3 Rev 7 3 6 Electrical Field Connections Standard Features 300mm 12in DX Models Source DPN002810 Rev 5 High Voltage Connection Through the Rear of the Disconnect Switch Box 1 1 8 1 2 28 6mm and 1 3 4 44 5mm diameter concentric knockout High Volta
54. 0 1 96 18 9 1 19 Pressure Drop ft water kPa 80 3 240 1 51 5 154 Heat Rejection KBTU H kW 157 4 46 1 95 9 28 1 80 F DB 62 8 F WB 26 7 C DB 17 1 C WB 37 RH Total KBTU H kW 118 2 34 7 71 6 21 0 Sensible KBTU H kW 101 8 29 8 65 6 19 2 Flow Rate GPM l s 30 1 1 9 13 1 0 8 Pressure Drop ft water kPa 76 0 227 1 25 9 77 4 Heat Rejection KBTU H kW 153 7 45 1 93 3 27 3 80 F DB 66 5 F WB 26 7 C DB 19 2 C WB 50 RH Total KBTU H kW 126 0 36 9 76 3 22 4 Sensible KBTU H kW 90 0 26 4 56 8 16 6 Flow Rate GPM l s 31 6 2 0 19 4 1 2 Pressure Drop ft water kPa 83 5 249 6 54 2 161 9 Heat Rejection KBTU H kW 161 6 47 4 98 5 28 9 1 The net capacity data has fan motor heat factored in for all ratings 2 Capacity data is factory certified to be within 596 tolerance 3 Data rated with standard filter 61 Liebert CRV Liebert CRV Water Glycol Systems Table 30 Performance data Water cooled 300mm 12 inch units CRO19RW 83 F 28 33 C EWT Return Air Temperature 95 F 35 C LWT 85 F 29 4 C EWT 105 F DB 70 5 F WB 40 6 C DB 21 4 C WB 17 RH Total KBTU H kW 90 2 26 4 89 7 26 3 Sensible KBTU H kW 90 2 26 4 89 7 26 3 Flow Rate GPM l s 18 0 1 1 18 0 1 1 Pressure Drop ft water kPa 41 2 123 2 41 2 123 2 Heat
55. 00 F DB 69 1 F WB 37 8 C DB 20 6 C WB 20 RH Total KBTU H kW 83 3 24 4 Sensible KBTU H kW 83 3 24 4 Flow Rate GPM l s 21 1 1 33 Pressure Drop ft water kPa 64 0 191 2 Heat Rejection KBTU H kW 107 5 31 5 95 F DB 67 4 F WB 35 C DB 19 6 C WB 23 RH Total KBTU H kW 76 0 22 3 Sensible KBTU H kW 76 0 22 3 Flow Rate GPM l s 19 6 1 24 Pressure Drop ft water kPa 55 5 165 9 Heat Rejection KBTU H kW 99 8 29 3 90 F DB 66 9 F WB 32 2 C DB 19 3 C WB 27 RH Total KBTU H kW 72 7 21 3 Sensible KBTU H kW 71 9 21 1 Flow Rate GPM l s 19 0 1 2 Pressure Drop ft water kPa 52 2 156 0 Heat Rejection KBTU H kW 96 4 28 2 85 F DB 64 F WB 29 4 C DB 17 7 C WB 31 RH Total KBTU H kW 70 1 20 5 Sensible KBTU H kW 66 7 19 6 Flow Rate GPM l s 18 4 1 16 Pressure Drop ft water kPa 48 9 146 3 Heat Rejection KBTU H kW 93 6 27 4 80 F DB 62 5 F WB 26 6 C DB 16 94 C WB 37 RH Total KBTU H kW 68 2 20 0 Sensible KBTU H kW 60 4 17 7 Flow Rate GPM l s 18 0 1 14 Pressure Drop ft water kPa 47 1 140 6 Heat Rejection KBTU H kW 91 6 26 9 80 F DB 66 6 F WB 26 66 C DB 19 2 C WB 50 RH Total KBTU H kW 73 3 21 5 Sensible KBTU H kW 51 9 15 2 Flow Rate GPM l s 19 0 1 2 Pressure Drop ft water kPa 52 2 156 0 Heat Rejection KBTU H kW 97 0 28 4 1 The net capacity data has fan motor heat factored
56. 00mm 12in Air Cooled and Chilled Water Models Source DPN002810 Rev 5 Pg 2 14 Condensate Pump High Water Alarm available when optional pump is installed On pump high water indication normally open dry contact is closed across Terminals 88 and 89 for remote indication 1A 24VAC maximum load Use field supplied Class 1 wiring 15 Liebert Liqui tect Shutdown and Dry Contact available when optional Liebert Liqui tect sensor is installed On Liebert Liqui tect activation normally open dry contact is closed across Terminals 58 and 59 for remote indication The Liebert Liqui tect sensor notifies Liebert iCOM of indication through Terminals 60 and 61 1A 24VAC maximum load Use field supplied Class 1 wiring 16 Additional Common Alarm On any alarm one additional normally open dry contact is closed across Terminals 94 and 95 for remote indication 1A 24VAC maximum load Use field supplied Class 1 wiring Liebert CRV 98 Chilled Water Systems 600mm 24in and 300mm 12in Cabinets Figure 54 Electrical field connections 300mm 12in air cooled and chilled water models Refer to 3 6 Electrical Field Connections Standard Features 300mm 12in DX Models and 3 6 1 Electrical Field Connections Optional Features 300mm 12in DX Models for keys to numbered components A
57. 00mm 24in and 300mm 12in Cabinets 7 15 300mm 12in Chilled Water Optional Features Source DPN002973 Rev 1 Dual float Condensate Pump Capacity of 45 GPH 171 l hr at 13ft 4m 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 2 way Modulating Valve A two way modulating valve controls the chilled water flow passing through the cooling coil The 1COM control manages the valve actuator movement in order to provide the desired amount of cooling for various entering water temperatures Cooling capacity is regulated by varying the chilled water flow The maximum differential pressure across the closed valve is 200 PSI 1879 kPa Maximum system pressure is 325 PSI 2241 kPa Liebert IntelliSlot Sitelink E Card IS 485EXI Provides ground fault isolated connection to a Liebert SiteLink E for monitoring and management Compatible with Liebert SiteScan Web 4 0 or newer version Liebert IntelliSlot Unity Card IS UNITY DP Provides ground fault isolated RS 485 Modbus BACnet IP amp Modbus IP network connectivity to Building Management Systems for unit monitoring and management Also provides ground fault isolated 10 100 baseT Ethernet connectivity for unit monitoring and management The supported management interfaces include SNMP for Network Management S
58. 1 Sy 0 8 Standard Unit Without Internal Bracing Standard Color Z 7021 Black 4 Seismic Certification Level 2 Sg 2 0 2 5 With Internal bracing Standard Color Z 7021 Black Digit 17 High Voltage Options L No condensate pump 5k SCCR 300mm 12 120V CW Only 5 Condensate pump 5k SCCR 300mm 12 120V CW Only M No dual float condensate pump for units without humidifier 65k SCCR P Dual float condensate Pump for units with or without humidifier 65k SCCR Digit 18 Option Package 0 None H Reheat and Humidifier Lockout Contact 600mm 24 Only C Reheat and Humidifier Lockout and Additional Alarm Contact 600mm 24 Only D Low Sound Package 600mm 24 DX Only L Low Sound Package and Reheat and Humidifier Lockout and Additional Alarm Contact 600mm 24 DX Only Digit 19 Liebert IntelliSlot Housing 0 No Cards C 1 Liebert SiteLink E Card U 1 Liebert IntelliSlot Unity DP Card 6 1 Liebert IntelliSlot Unity DP Card and 1 Liebert SiteLink E Card 7 2 Liebert IntelliSlot Unity DP Cards Digit 20 Future Options 0 None Digit 21 Packaging With Ramp P Domestic S Export Seaworthy Digit 22 Special Features A No SFAs Standard Unit X SFA Included Digits 23 25 Factory Configuration Number 1 The 14 digit model number consists of the first 10 digits and last four digits of the configuration number 1 Liebert CRV Liebert CRV Component Loca
59. 1 8m Cold Supply Air Cold Aisle Maximum Distance to Barrier Figure 69 One Liebert CRV alternate placement Hot Return Air Hot Aisle 6 ft 1 8m Cold Supply a Y Cold Aisle Maximum Dist nce to Barrier Figure 70 Simulated aisle containment using room barriers single row Hot Return Air Hot Aisle 6 ft 1 8m Maximum Distance to Barrier Cold Aisle 117 Liebert CRV Liebert CRV Intended Application Figure 71 Simulated aisle containment using room barriers multiple rows Hot Aisle Hot Return Air Cold Supply Air Cold Aisle Cold Supply Air Barrier Hot Aisle Hot Return Air A 3 2 Number of Racks Row Length The number of racks the Liebert CRV can condition depends on the equipment s heat load and airflow requirements It is recommended to oversize the Liebert CRV by approximately 20 to account for gaps where cold air is lost through server racks obstructions pillars people partly open rack doors reducing air distribution efficiency and error in estimating server equipment heat and airflow requirements When deployed with SmartAisle cold aisle containment the Liebert CRV can be more closely matched to the server equipment needs When the Liebert CRV is significantly oversized the cooling unit is able to effectively distribute air six to seven racks away Initially oversizing the unit provides for future data center flexibility with nearly no energy consumption or foo
60. 100 Total Head Feet Water 60 40 20 e 10 20 30 40 50 60 70 80 120 Flow Rate GPM 160 200 250 300 400 85 Liebert CRV Heat Rejection Drycoolers 6 4 Liebert Glycol Cooled Direct Drive Drycoolers 6 4 1 Standard Features Source DPN000273 Revision 1 Coil Emerson manufactured coil is constructed of copper tubes in a staggered tube pattern Tubes are expanded into continuous rippled aluminum type fins The fins have full depth fin collars completely covering the copper tubes which are connected to heavy wall Type L headers Inlet coil connector tubes pass through relieved holes in the tube sheet for maximum resistance to piping strain and vibration Coils are factory leak tested at a minimum of 300 PSIG dehydrated then filled and sealed with a nitrogen holding charge for shipment Fan s Blades are constructed of zinc plated steel or aluminum with a diameter of 26 inches 660 4mm and secured to the fan shaft by a heavy duty hub with set screw Fan guards are heavy gauge close meshed steel wire with corrosion resistant finish Fans are factory balanced and tested before shipment Fan Motor s Provided with rain slingers permanently lubricated bearings and individual built in overload protection Motors are rigidly mounted on die formed galvanized steel supports H
61. 143 Liebert CRV Guide Specifications Row Based Environmental Control System 2 11 Liebert iCOM Microprocessor Control With Large Graphic Display Small Graphic Display Option shall not be available for Liebert CRV units The Liebert 1COM shall be factory set to allow precise monitoring and control of the rack equipment it is placed near This control shall include predictive methods to control air flow and cooling capacity based on supply and remote sensors Proportional and Tunable PID shall also be user selectable options Internal unit component control shall include Compressor Short Cycle Control Prevents compressor short cycling and needless compressor wear System Auto Restart The auto restart feature shall automatically restart the system after a power failure Time delay shall be programmable Sequential Load Activation On initial startup or restart after power failure each operational load shall be sequenced with a minimum of one second delay to minimize total inrush current Predictive Humidity Control Calculates the moisture content in the room and prevents unnecessary humidification and dehumidification cycles by responding to changes in dew point temperature The Liebert 1COM shall be compatible with all Liebert remote monitoring and control devices Options are available for BMS interface via Modbus HTTP BACnet and SNMP The Liebert 1COM shall be microprocessor based with a 320x240 dot matrix graph
62. 2 1 DPNO001884 Pg 3 Rev 7 Liebert CRV 68 Liebert CRV Water Glycol Systems 5 2 3 Electrical Connections Standard Features 300mm 12in Water Glycol Units Source DPN002810 Rev 5 Pg 1 1 2 gt 10 11 12 13 High Voltage Connection Through the Rear of the Disconnect Switch Box 1 1 8 28 6mm and 1 3 4 44 5mm diameter concentric knockout High Voltage Connection Through the Top of the Unit 1 1 4 82mm and 1 3 4 44mm diameter concentric knockout Electrical Service hard wired Refer to serial tag for unit electrical service requirements Three phase 208 230V 60Hz Three Phase with Neutral 460V 60Hz Wye 5 wire 3 phase neutral ground Single phase 208 230V 60Hz Chilled Water only Connect to terminals on disconnect switch Electrical service not by Emerson Use copper conductors only Wire per local codes Refer to specification sheet for total unit full load amps wire size amps and maximum overcurrent protective device size Electrical Service cord connected Refer to serial tag for unit electrical service requirements Single phase 120V 60Hz chilled water only 1 3 4 44mm diameter knockout provided in the top and bottom of the unit for the power cord to exit the unit The power cord is factory supplied with an L5 20 plug Factory Installed locking Disconnect Switch Earth ground Terminal for field supplied earth grounding wire Low Voltage Connection Thro
63. 2 9 0 81 Pressure Drop ft water kPa 39 7 118 7 21 9 65 5 Heat Rejection KBTU H kW 105 2 25 7 104 6 30 6 90 F DB 66 2 F WB 32 2 C DB 19 0 C WB 27 RH Total KBTU H kW 84 7 24 8 82 8 24 3 Sensible KBTU H kW 81 5 23 9 80 5 23 6 Flow Rate GPM l s 17 1 1 08 12 3 0 77 Pressure Drop ft water kPa 37 6 112 4 20 0 59 7 Heat Rejection KBTU H kW 102 2 24 8 101 3 29 7 85 F DB 64 5 F WB 29 4 C DB 18 1 C WB 31 RH Total KBTU H kW 82 2 24 1 80 3 23 5 Sensible KBTU H kW 75 1 22 0 74 2 21 8 Flow Rate GPM l s 16 6 1 05 11 8 0 74 Pressure Drop ft water kPa 35 5 106 2 18 5 55 3 Heat Rejection KBTU H kW 99 6 24 1 98 7 28 9 80 F DB 62 8 F WB 26 7 C DB 17 1 C WB 37 RH Total KBTU H kW 79 8 23 4 78 0 22 9 Sensible KBTU H kW 68 6 20 1 67 7 19 8 Flow Rate GPM l s 16 2 1 03 11 7 0 74 Pressure Drop ft water kPa 34 0 101 7 18 2 54 4 Heat Rejection KBTU H kW 97 1 23 4 96 3 28 2 80 F DB 66 5 F WB 26 7 C DB 19 2 C WB 50 RH Total KBTU H kW 85 1 24 9 83 1 24 4 Sensible KBTU H kW 60 5 17 7 59 7 17 5 Flow Rate GPM l s 17 1 1 08 12 5 0 79 Pressure Drop ft water kPa 37 6 112 4 20 6 61 5 Heat Rejection KBTU H kW 102 9 30 1 101 6 29 8 1 The net capacity data has fan motor heat factored in for all ratings 2 Capacity data is factory certified to be within 5 tolerance 3 Data rated
64. 23 5 8 100mm 600mm 27 9 16 700mm Air Filters Access required for installation of the Liebert CRV within the row REAR VIEW Weight 5 CR020 739 Ib 335kg CRO35R 805 Ib 365kg a lt Front or Rear od Clearance DPN001791 Required Rev 3 Liebert CRV 22 Air Cooled Systems Figure 15 Cabinet and floor planning dimensions Air cooled 300mm 12in models Access Required to Service the Unit Between Existing Racks Within the Row FRONT S xo d Pd 36 914 4mm 2000mm Top of Unit to Floor pe REAR Liftoff door TOP VIEW 43 3 1100mm Access Required to Install the Unit Between Existing Racks Within the Row m 1 FRONT f with Display li 36 914 4mm ONLY Front or Rear Clearance Required 2 ms enden cms e 12 P 300mm e 49 2 1250mm mire Installation Depth Weight 5 Rev 4 Installation Depth 23 Liebert CRV Air Cooled Systems 3 8 Piping Air Cooled Systems Figure 16 Primary connection locations air cooled models 600mm 24in digital scroll with EC fans TOP CONNECTIONS 28mm eon 9 3 4 12 34 4 au 2 15 16 248mm 325mm 44
65. 3 1 4 83mm 17 5 16 3 1 16 77mm 74mm 44mm 440mm 9 5 16 237mm 2 11 16 5 1 3 i i 69mm 130mm 2 11 16 2 11 16 69mm 69mm E 3 1 16 2 15 16 46 1 4 3 3 4 77mm 74mm 1175mm 4 3 4 95mm 4 3 4 l 45mm HVB_ GD or CP 45mm I 2 1 8 55mm gd Ld LVB2 E 38mm 3 7 8 98mm in E 1 i i N 5 3 8 136mm oL 4 13 16 i 122mm 5 7h6 2 316 BOTTOM CONNECTIONS eoo 96mm M NUES dmm 138mm b6mm possible with raised floor L L 3 1 4 83mm Piping and electrical connections available at the top and bottom of unit DPNO001792 Air cooled systems may require oil to be added in the field to allow Rev 3 sufficient compressor lubrication Source DPNO001792 Rev 3 Unit Connections CR20A 50Hz CR35A 50Hz CR20A 60Hz CR35A 60Hz RL j Refrigerant Liquid Line Inlet 12mm O D Cu Sweat 16mmO D Cu Sweat 1 2 O D Cu Sweat 5 8 O D Cu Sweat RG Refrigerant Gas Line Outlet 16mm O D Cu Sweat 22mm O D Cu Sweat 5 8 O D Cu Sweat 7 8 O D Cu Sweat GD Gravity Coil Pan Drain 20mm I D 1 MPT GDH Gravity Humidifier Drain 22mm I D N A CP Condensate Pump 1 2 Gas F 1 2 FPT Ad 1 2 Gas F Top Connection 1 2 FPT Top Connection HS Humidifier Supply 3 4 Gas F Bottom Connection 1 4 Compression Fitting Bottom Connection TENE Combination Knockout Hole Diameter 35mm 1 3 8 Combination Knockout Hole Diameter 1 3 8 35mm
66. 3 11 0 12 9 20 3 12 7 14 6 20 3 14 4 16 3 20 7 5 3 12 7 15 5 25 3 14 4 17 2 25 3 16 1 18 9 25 3 17 8 20 6 30 83 Liebert CRV Heat Rejection Drycoolers 6 3 Drycooler Pump Packages and Expansion Tank Options Figure 48 Drycooler pump package and pump mounting 1 2 12 7mm c bsc cm 30 1 4 diameter holes 768 4mm F q MN Pump a L f discharge connections a See emm Note 2 Pump Package Mounting i 3 c y 584 2mm 3 4 3 1 2 19 1mm 88 9mm Provided on dual pump package only Notes 1 Single pump packages are 17 1 4 438 2mm wide Dual pump packages are 32 1 4 819 2mm wide 2 Mounting holes are 15 11 32 389 7 mm apart on single pump packages and 30 11 32 770 7mm apart on dual pump packages 3 7 1 2hp dimensions not shown consult factory Expansion Tank P N 1C16717P1 This tank included in a standard pump package has an internal volume of 8 8 gal 331 and a maximum pressure of 100 psi 690 kPa This tank is sized for a typical open system with a fluid volume of less than 75 gal 2801 When used in a closed system volumes of up to 140 gal 9101 can be accommodated The use of a safety relief valve field supplied is recommended for systems closed to atmospheric venting Other piping accessories for filling venting or adjusting the fluid in the system are recommended but not inclu
67. 41 104 F 5 40 C Humidity Setpoint 20 80 RH Humidity Sensitivity 1 3096 RH High Temperature Alarm 35 90 F 2 32 C Low Temperature Alarm 35 90 F 2 32 C High Humidity Alarm 15 8596 RH Low Humidity Alarm 15 8596 RH l he microprocessor may be set within these ranges however the unit may not be able to control to extreme combinations of temperature and humidity Standby Settings Lead Lag Menu shall allow planned rotation or emergency rotation of operating and standby units Alarm Setup Menu shall allow customer settings for alarm notification audible local remote The following alarms shall be available High Temperature Low Temperature High Humidity Low Humidity Compressor Overload Optional Main Fan Overload Optional Humidifier Problem High Head Pressure Change Filter Failure Low Suction Pressure Unit Off Audible Alarm The audible alarm shall annunciate any alarm that is enabled by the operator Common Alarm programmable common alarm shall be provided to interface user selected alarms with a remote alarm device Remote Monitoring All alarms shall be communicated to the Liebert monitoring system with the following information date and time of occurrence unit number and present temperature and humidity Sensor Calibration Menu shall allow unit sensors to be calibrated with external sensors Maintenance Wellness Settings Menu shall allow reporting of potenti
68. 5 1 FLA Full Load Amps WSA Wire Size Amps OPD Maximum Overcurrent Protection Device 2 208V 460V premium models must be connected to wye 3 phase systems with solidly grounded neutral Table 17 Electrical data Liebert Lee Temp receiver 60Hz 120 200 208 230 Rated Voltage Single Phase Watts Receiver 150 300 150 300 Full Load Amps 1 4 2 8 0 7 1 4 Wire Size Amps 1 8 3 5 0 9 1 8 Maximum Overcurrent Protection Device Amps 15 15 15 15 4 NOTE Liebert Lee Temp condensers require a separate line voltage electrical supply for the heated receivers See Table 16 for power requirements 37 Liebert CRV Heat Rejection Liebert MC and Fin Tube Condensers 4 4 4 4 1 Electrical Field Connections Liebert MC Condensers Condenser rated voltage should be verified with available power supply before installation Refer to the unit s electrical schematic and serial tag for specific electrical requirements Line voltage electrical service is required for all condensers at the location of the condenser The voltage supply to the condenser may not be the same voltage supply as required by the indoor unit Consider using UPS equipment on both data center cooling units and Liebert MC condensers to maintain uninterrupted cooling capability Refer to the unit s serial tag for specific condenser electrical requirements A unit di
69. 5 147 DCSL60K 2 6 91 1 2 2324 42 1067 82 2083 475 215 DCSL90K 3 6 131 1 2 3340 42 1067 124 3150 675 306 Source DPNO001623 Rev 7 Pg 2 51 Liebert CRV Heat Rejection Liebert MC and Fin Tube Condensers Figure 33 Cabinet and anchor dimensions R 410A VFD control fin tube condensers 18 458mm 25 4 melee 4 1 4 a on T 108mm p Cc i IN E T 1 7 8 48mm 1 3 4 t 44 5mm T 41 3 16 d 37 11 16 7 16 1097mm P ied Electric 957mm PE 43 316 14 3mm Z Box End 1097mm 4 1 4 108mm Y Y m re S Anchor Plan DPNO001624 1 7 8 Pg 2 Rev 8 47 6mm of A B C Net Weight Model No Fans In mm In mm In mm Ib kg TCSV28K 1 51 1 2 1308 44 1118 42 1067 325 148 TCSV60K 2 91 1 2 2324 84 2134 82 2083 470 213 TCSV90K 3 131 1 2 3340 124 3150 122 3099 670 304 Source DPN001624 Rev 8 Liebert CRV 52 Heat Rejection Liebert MC and Fin Tube Condensers 4 9 Electrical Field Connections Fin Tube Table 23 Electrical data 60Hz fin tube condenser Model 28K 60K 90K of Fans 1 2 3 Input Voltage ph FLA WSA OPD FLA WSA OPD FLA WSA OPD VFD Controlled 208 230 3 7 46 15 7 2 8 1 15 10 7 11 6 15 460 i 1 8 2 3 15 3 5 4 0 15 5 2 5 7 15 Liebert Lee Tem
70. 5V Nominal Units 208V wye with solidly grounded neutral and 120V line to ground 380V wye with solidly grounded neutral and 220V line to ground 480V wye with solidly grounded neutral and 277V line to ground 575V wye with solidly grounded neutral and 332V line to ground uses step down transformer Non Acceptable Power Supplies for 208V to 575V Nominal Units Wye with high resistance or impedance ground Delta without ground or with floating ground Delta with corner ground or Delta with grounded center tap Liebert CRV 40 Heat Rejection Liebert MC and Fin Tube Condensers Figure 25 CANbus communication connection Liebert CRV 600mm 24 in and Liebert MC premium unit CANBUS CONNECTIONS TB50 DETAIL 1 CAN CABLE A CONNECTION Shield Connection J6 Termination jumper must be set to Pins 1 and 2 CANbus Addressing Switch Condenser Factory Wiring Between Liebert MC Control Board A 70 71 B 230 Heat Rejection Interlock B Low Voltage Field Entrance Located on Bottom Left of Condenser Enclosure P78 Termination Jumper factory set to Pins 2 and 3 Field must remove jumper and replace on Pins 1 and 2 and Terminal Strip ET Moly CD Molly CD Olly CO JoL CO OL CO OL CO iSnrem CAN Cable A ooo Connection MOL CO
71. 64mm diameter concentric knockout Low Voltage Connection Through the Bottom of the Electric Panel Two knockouts each 7 8 22mm diameter High Voltage Connection Through the Top of the Unit 1 3 8 34 9mm 1 3 4 44 5mm and 2 1 2 64mm diameter concentric knockout Low Voltage Connection Through the Top of the Unit Four knockouts each 7 8 22mm diameter Three Phase Electrical Service Connect to terminals on disconnect switch Three phase service not by Emerson Refer to 7 6 3 Important Note for 460V Rated Liebert CRV Units CR A Factory Installed Locking Disconnect Switch Earth Ground Terminal for field supplied earth grounding wire Remote Unit Shutdown Replace existing jumper between Terminals 37 and 38 with field supplied normally closed switch having a minimum 75VA 24VAC rating Use field supplied Class 1 wiring Customer Alarm Inputs Terminals for field supplied normally closed contacts having a minimum 75VA 24VAC rating between Terminals 3 and 50 Terminals 2 and 51 Terminals 5 and 55 or Terminals 3 and 56 Use field supplied Class 1 wiring Terminals 3 and 56 are used for humidifier alarm when a humidifier is installed The remaining terminals are available for customer alarm inputs such as smoke sensors and building fire alarms Common Alarm On any alarm normally open dry contact is closed across Terminals 75 and 76 for remote indication 1A 24VAC maximum load Use field supplied Class 1 wiring H
72. 67 6088 2873 5074 2394 5 8 22 0 470 213 174 2 91 1 2 2324 84 2134 82 2083 13265 6261 11054 5217 6 9 26 2 605 274 197 2 91 1 2 2324 84 2134 82 2083 12645 5968 10535 4973 9 34 645 293 225 2 91 1 2 2324 84 2134 82 2083 Em 12177 5748 10147 4789 11 1 42 1 685 310 310 3 131 1 2 3340 124 3150 122 3099 18965 8951 15804 7459 13 1 49 6 886 402 419 4 171 1 2 4356 164 4166 82 2083 80 2032 23650 11163 19708 9302 17 4 65 9 1120 508 Source DPN000274 Rev 1 Table 42 Piping direct drive drycoolers O D Cu Drycooler Number of Coil Inlet amp Outlet Pipe Model Circuits Diameter Inches 112 8 1 3 8 112 16 26 2 1 8 174 8 16 24 2 1 8 197 8 1 3 8 197 16 32 2 1 8 225 16 26 2 1 8 310 16 32 2 1 8 419 16 32 2 1 8 Standard Circuiting For model prefix designation refer to Figure 51 Source DPN000274 Rev 1 87 Liebert CRV Heat Rejection Drycoolers Figure 52 Fluid temperature control direct drive drycoolers Electrical service connection Factory wired to 24V terminals when factory Class 2 control circuit i i i control circui Factory wired to components disconnect is not supplied Electric service connection Fuse block supplied on n electric panel terminals when facto i ra
73. 71 1 73 3 67 9 63 7 65 1 59 6 52 5 71 5 60 3 Level PWL sound power level Table 53 Sound data CR032RC 300mm 12in 6 Fans With Filter Sound Power Level PWL Sound Pressure Level SPL Airflow Octave Band Frequency Hz Fan m h 5268 SCFM 100 3100 31 5 dB 63 dB 125 dB 73 0 250 500 dB 83 1 dB 82 2 1000 dB 82 0 2000 dB 78 9 4000 dB 71 0 8000 dB 65 5 A Scale Weighted Speed dB A 86 2 Inlet dB A 77 5 Outlet dB A 83 4 At Suction Side 2 m distance 1 5m above ground free field conditions 2m f f dBA 66 5 At Discharge side 2 m distance 1 5m above ground free field conditions 2m f f dBA 72 4 75 2500 4248 70 5 79 8 79 9 78 2 74 7 66 7 63 1 82 4 73 5 80 7 62 5 69 7 50 1650 2804 71 9 66 8 68 0 65 8 60 3 56 0 52 6 70 2 62 8 71 0 51 8 60 0 Liebert CRV 110 Chilled Water Systems 600mm 24in and 300mm 12in Cabinets 7 12 Standard Features 600mm 24in Chilled Water Systems Source DPN001906 Rev 5 Chilled Water Cooling Coil The evaporator coil has 7 25 ft 0 674 m2 face area six rows deep It is constructed of copper tubes and hydrophilic coated aluminium fins The hydrophilic coating provides sup
74. 77 Liebert CRV placement with SmartAisle cold aisle containment Liebert CRV at end of one row Hot Return Air SmartAisle AL Cold Supply Air Containment contained in SmartAisle A 7 LIEBERT CRV AND LIEBERT XD SYSTEMS When larger spaces approximately 20 racks or more require high density cooling row based Liebert CRV s can be used to the support Liebert XD cooling systems When used together these systems are more efficient than row based units alone Figure 78 illustrates the layout of a typical installation with two rows of racks and Liebert XDV modules Two Liebert CRV units are used to support the Liebert XD system and provide N 1 redundant humidity control Figure 78 Liebert CRV placement with Liebert XDV s Hot Return Air Hot Aisle Refer to the Liebert XD System Design manual SL 16655 for details on configuring a Liebert XD unit for use with a Liebert CRV Hot Aisle Hot Return Air 121 Liebert CRV Extra Airflow Standard on 600 Series Configurable on 300 Series APPENDIX B EXTRA AIRFLOW STANDARD ON 600 SERIES CONFIGURABLE ON 300 SERIES The Liebert CRV has the capability of providing additional airflow to correct for lower density air at higher elevations and during emergency conditions The Liebert CRV catalog cooling capacity is based on 10096 fan speed During normal operation the Liebert CRV will automatically modulate its airflow and cooling capacity to satisfy the aisle s requ
75. B Phase B Winding A Neutral Winding C Phase C Delta Power Supply Connection Phase A Winding Winding A B C A Phase B Winding B C Phase C 43 Liebert CRV Heat Rejection Liebert MC and Fin Tube Condensers 4 4 3 Wye vs Delta Connection Power Supply Small Platform Condenser MCS028 with Premium EC Control NOTICE Risk of improper input power Can cause equipment damage The Liebert MC Condenser Small Platform MCS028 with Premium EC Control is designed to operate with wye connected power It will NOT operate properly with delta connected power Figure 28 Wye and delta power supply connection diagram Wye Power Supply Connection Delta Power Supply Connection Phase A Winding B Phase B Winding A Neutral Winding C Phase C Acceptable Power Supplies 208V to 480V Nominal Units Small Plattorm Condenser MCS028 with Premium EC Control 208V wye with solidly grounded neutral and 120V line to ground 380V wye with solidly grounded neutral and 220V line to ground 480V wye with solidly grounded neutral and 277V line to ground Unacceptable Power Supplies 208V to 480V Nominal Units Only Small Platform Condenser MCS028 with Premium EC Control Wye with high resistance or impedance ground Delta without ground or with floating ground Delta with corner ground Delta with grounded center tap NOTE The Liebert MCS028 Premium EC Fan Model will not ope
76. C and Fin Tube Condensers Figure 31 Condenser piping for single circuit Liebert MC condensers with Liebert Lee Temp Hot Gas Line to Condenser Entering Hot Gas Line Position elbow to direct relief valve down Fasten hot gas line to cabinet using flat surface clamps with isolators field supplied Leaving Liquid Line See Detail A A Liquid Line from Condenser Metal Cl am OR Isolator DETAIL A A Emerson supplied piping assembly will include one to three valves and check valves depending on condenser capacity and refrigerant IL Co Field Piping SS NOTES 1 The following materials are supplied by Emerson and are shipped loose for each circuit and for field installation insulated Liebert Lee Temp receiver tank with electric heater pads and sight glasses piping assembly with head pressure control valve and check valve and rotalock valve and pressure relief valve All other piping and electrical wiring to be supplied and installed by others Additional condenser leg per circuit when required ships with the condenser 2 For runs longer than 150ft 45 7m equivalent length consult the factory for proper line sizing Shipping cover is not necessary for proper condenser operation and may be recycled if field piping interferes with proper reattachment Eur ene Table 19 Condenser piping connection sizes Single circuit condensers with Liebert Lee Temp Co
77. Connected 3 Phase 3 Phase Neutral Ground CW Only CW Only DPNO002810 Pg 4 Rev 5 3 6 2 Wye vs Delta Connection Power Supply for 460V 300mm 12in Air Cooled Models Figure9 Wye vs delta power supply connection diagram Phase A Phase A Phase B Neutral Phase C Ground Phase C Wye Power Supply Connection Delta Power Supply Connection NOTICE Risk of improper input power Can cause equipment damage The 460V model will not operate properly with delta connected power A field supplied isolation transformer or other power solution will be needed for proper function Acceptable Power Supplies 480V Nominal Units 480V wye with solidly grounded neutral and 277V line to ground p Power Supplies 480V Nominal Units Wye with high resistance or impedance ground Delta without ground or with floating ground Delta with corner ground Delta with grounded center tap 17 Liebert CRV Air Cooled Systems Figure 10 Low voltage field wiring routing into the unit 300mm 12in DX models Low Voltage Field Wiring Factory Wiring Low Voltage Field Wiring Liebert CRV 18 Air Cooled Systems Figure 11 Power cable routing Bottom entry 300mm 12in air cooled models Use rear knockout on Main Disconnect for high voltage wire entry i TN NES PORTA CM SOME COMPONENTS NOT SHO
78. Delta with corner ground Delta with grounded center tap Electrical Data 300mm 12in Units Table49 Electrical data Chilled water 300mm 12in wide models Voltage FLA WSA OPD With Condensate Pump 120V 1Ph 60Hz 14 6 15 2 20 208 230V 1Ph 60Hz 12 3 12 8 15 208 230V 3Ph 60Hz 7 5 8 3 15 460V 3Ph 60Hz Wye Connected 4 3 4 8 15 Without Condensate Pump 120V 1Ph 60Hz 13 2 13 8 15 208 230V 1Ph 60Hz 11 4 11 9 15 208 230V 3Ph 60Hz 6 6 7 4 15 460V 3Ph 60Hz Wye Connected 3 8 4 3 15 Liebert CRV 96 Chilled Water Systems 600mm 24in and 300mm 12in Cabinets 7 7 1 Standard Electrical Field Connections 300mm 12in Air Cooled and Chilled Water Models Source DPN002810 Rev 5 Pg 1 1 2 gt 10 11 12 13 High Voltage Connection Through the Rear of the Disconnect Switch Box 1 1 8 28 6mm and 1 3 4 44 5mm diameter concentric knockout High Voltage Connection Through the Top of the Unit 1 1 4 82mm and 1 3 4 44mm diameter concentric knockout Electrical Service hard wired Refer to serial tag for unit electrical service requirements Three Phase 208 230V 60Hz Three Phase with Neutral 460V 60Hz wye 5 wire 3 phase neutral ground Single Phase 208 230V 60Hz chilled water only Connect to terminals on disconnect switch Electrical service not by Emerson Use copper conductors only Wire per local codes Refer to spec
79. Description Dimensions Refrigerant Liquid Refrigerant Liquid Top 1 8 3mm Cable RLT Line inlet 1 2 O D Cu Sweat RLB Line Inlet 1 2 O D Cu Sweat Refrigerant Gas Refrigerant Gas RGT Lino Outlet 5 8 O D Cu Sweat RGB Line Outlet 5 8 O D Cu Sweat Knockout i Knockout Hole CPT Condensate Pump 1 3 8 35mm GD Gravity Coil Pan Drain Diameter 1 3 4 Combination Knockout CPB Condensate Pump 44mm Hyr High Voltage Top 1 419 29mm and Connection 1 3 4 44mm High Voltage Bottom Combination Knockout Low Voltage Top 2 Knockout Holes HVB Entrance feed through 1 1 8 29mm and LVT1 Connection Diameter 7 8 22mm units base 1 3 4 44mm Twisted Pair Low Voltage Top Low Voltage Bottom LVT2 Connection See ea LVB1 Connection Twisted ee Shielded Cable l Pair Tie Down Mounting 4 Holes Diameter Low Voltage Bottom 2 Knockout Holes TDM LVB2 Connection Shielded Diameter 7 8 22mm Source DPN002813 Rev 6 25 Liebert CRV Air Cooled Systems Figure 18 General arrangement diagram fin and tube condenser with and without Liebert Lee Temp Air cooled 600mm 24 in Liebert CRV models Refer to 4 1 Liebert MC Condenser Selections 600mm 24in and 300mm 12in CRV Units and 4 7 Liebert Fin Tube Condenser Selections 600mm 24in Units for details OUTDOOR VFD CONDENSER OUTDOOR LIEBERT LEE TEMP CONDENSER Head Pressure Optional Field
80. Features 600mm 24in Air Cooled Systems 0000s 29 3 11 Optional Features 600mm 24in Air Cooled Systems 0 0 000 ccc eee 30 3 12 Standard Features 300mm 12in Air Cooled Systems 000 cece eee eee 31 3 13 Optional Features 300mm 12in Air Cooled Systems 0 0 0 0 cece eee 32 4 0 HEAT REJECTION LIEBERT MC AND FIN TUBE CONDENSERS lene 33 4 1 Liebert MC Condenser Selections 600mm 24in and 300mm 12in CRV Units 33 4 2 Dimensions and Weights Liebert MC Condensers sellers 33 4 3 Electrical Data Liebert MC Condensers sees 37 4 4 Electrical Field Connections Liebert MC Condensers 0 0000 cece eee ee 38 4 4 1 Electrical Field Connection Descriptions Liebert MC Condensers 004 38 4 4 2 Wye vs Delta Connection Power Supply MCM and MCL Models with EC Fans 43 4 4 8 Wye vs Delta Connection Power Supply Small Platform Condenser MCS028 with Premium EC Gontrol z22 1 Lie eek ea ae ad anda EE Kp eis 44 4 5 Piping Liebert MC Condensers L0 cere Ce ee a e taba o AD CERE EA 45 4 5 Piping Guidelin s 3 or rhe xem te CE oe BAe in ah een ad pe edt ds 45 4 6 Field Piping Guidelines Liebert MC Condensers eee AT 4 7 Liebert Fin Tube Condenser Selections 600mm 24in Units lees 50 4 1 Variable Frequency Drive Fin Tube Condensers with without Liebert Lee Temp 50 4 8 Dimensions
81. H kW 125 4 36 7 100 7 29 5 Sensible BTU H kW 114 7 33 6 100 7 29 5 Flow Rate GPM l s 25 8 1 6 20 9 1 3 Pressure Drop ft H2O kPa 25 9 77 3 17 4 51 9 80 F DB 62 8 F WB 26 7 C DB 17 1 C WB 37 RH Total KBTU H kW 108 2 31 7 83 9 24 6 Sensible BTU H kW 98 2 28 8 83 9 24 6 Flow Rate GPM l s 22 4 1 4 17 6 1 1 Pressure Drop ft H2O kPa 20 59 8 12 7 37 9 The net capacity data has fan motor heat factored in for all ratings Capacity data is factory certified to be within 596 tolerance Data rated with standard filter 89 Liebert CRV Chilled Water Systems 600mm 24in and 300mm 12in Cabinets 7 2 Performance Data 300mm 12in Units Table 44 Capacities chilled water models CRO32RC1 45 F 7 2 C EWT 10 F 5 6 C 50 F 10 C EWT 10 F 5 6 C Water Rise Water Rise 95 F DB 67 9 F WB 35 C DB 19 9 C WB 23 RH Total KBTU H kW 100 9 29 6 88 7 26 Sensible KBTU H kW 97 7 28 6 86 0 25 2 Flow Rate GPM l s 18 8 1 2 18 2 1 1 Pressure Drop ft H2O kPa 27 9 83 3 26 77 6 90 F DB 66 2 F WB 32 2 C DB 19 0 C WB 27 RH Total BTU H kW 89 1 26 1 72 3 21 2 Sensible BTU H kW 85 9 25 2 71 6 21 Flow Rate GPM l s 18 1 1 13 9 0 9 Pressure Drop ft H20 kPa 25 2 75 3 15 4 45 9 85 F DB 64 5 F WB 29 4 C DB 18 1 C WB 31 RH Total BTU H kW 75 7
82. Ib hr kg hr 5 0 2 3 Capacity kW 1 79 Condensate Pump Dual Float Type Capacity GPM l m 6 0 22 7 Filter Section Disposable Type MERV 8 Standard Pleated Filter Number 2 Nominal Size in mm 31 1 2 x 17 1 2 x 4 800 x 445 x 100 Effective Surface Area ft m 16 4 1 52 MERV 11 Optional Pleated Filter Quantity 2 Nominal Size in mm 31 1 2 x 17 1 2 x 4 800 x 445 x 100 Effective Surface Area ft m 16 4 1 52 Liebert CRV Air Cooled Systems Table 4 Performance data 300mm 12 inch units Standard 95 F 35 C Ambient Condenser 2250 CFM CRO19RA Return Air Temperature MC Condenser 105 F DB 71 F WB 40 6 C DB 21 6 C WB 17 RH Total KBTU H kW 87 1 25 5 Sensible KBTU H kW 87 1 25 5 100 F DB 69 1 F WB 37 8 C DB 20 8 C WB 20 RH Total KBTU H kW 83 5 24 5 Sensible KBTU H kW 83 5 24 5 95 F DB 67 4 F WB 35 C DB 19 9 C WB 23 RH Total KBTU H kW 80 23 4 Sensible KBTU H kW 79 8 23 4 90 F DB 65 9 F WB 32 2 C DB 19 0 C WB 27 RH Total KBTU H kW 77 5 22 7 Sensible KBTU H kW 74 5 21 8 85 F DB 64 0 F WB 29 4 C DB 18 1 C WB 31 RH Total KBTU H kW 75 22 Sensible KBTU H kW 69 1 20 3 80 F DB 62 8 F WB 26 7 C DB 17 1 C WB 37 RH Total KBTU H kW 73 1 21 4 Sensible KBTU H kW 62 8 18 4 1 The net capacity data ha
83. Liebert CRV Row Based Cooling System A SmartAisle Technology System Design Manual 600mm and 300mm Wide Air Cooled Water Glycol Cooled and Chilled Water Cooled Units amp 4 es EMERSON Network Power TABLE OF CONTENTS MODEL NUMBER NOMENCLATURE 25 DIGIT CONFIGURATION NUMBER 1 wet ease E ah ai at a tae tat eat a bet a 1 1 0 LIEBERT CRV COMPONENT LOCATION 0000 cee cece ee hh hh hn nn 2 2 0 PRODUCT DESCRIPTION CONFIGURATIONS 00000 cece hh hh nnn 6 3 0 AIR COOLED SYSTEMS 2 wp oA CC CE eee oe Res et ea a oan aie eee 8 3 1 Capacity and Physical Data Air Cooled Systems 0 000 esee 8 3 2 Operating Limits Air Cooled Systems lille 11 3 3 Electrical Data Air Cooled Models 0 00 ccc cee n eee ee 11 3 4 Electrical Connections Standard Features 600mm 24in units 20 0 000 12 3 5 Electrical Connections Optional Features 600mm 24in units 0 0 eee 13 3 6 Electrical Field Connections Standard Features 300mm 12in DX Models 14 3 6 1 Electrical Field Connections Optional Features 300mm 12in DX Models 15 3 6 2 Wye vs Delta Connection Power Supply for 460V 300mm 12in Air Cooled Models 17 9 7 Dimensions Air Cooled Systems 0 ccc ee eens 22 3 8 Piprig Aim Cooled Systems e no nA ROT us ORC ca wales RO ADU QUE he 24 3 9 Sound Data Air Cooled Systems 0 0 eee ne teen nee enn 28 3 10 Standard
84. O55E1 CR035A PORUM MCMO040E1 MCLO55E1 MCLO55E1 MCMO80E1 MCMO80E1 MCMO080E1 Table 13 800mm 12in DX model Traditional open room 95 F 35 C 23RH return air conditions Liebert QuietLine operation Outdoor Design Ambient Temperature F C Indoor Model Unit Width 95 35 100 38 105 41 110 43 115 46 120 49 CRO19RA 300mm 12in CROZOA MCS028E1 MCMO040E1 MCLO55E1 MCLO55E1 MCMO080E1 600mm 24in CRO35A MCLO055E1 MCLO55E1 MCMO080E1 MCMO080E1 MCL110E1 4 2 Dimensions and Weights Liebert MC Condensers Table 14 Condenser net weights shipping weights dimensions and volume approximate Domestic Packaging Export Packaging Packaged Dimensions Volume Packaged Dimensions Volume Model Weight Ib kg LxWxH in cm ft m Weight Ib kg LxWxH in cm ft m MCS028 335 152 76x36x63 193x91x160 100 2 8 455 206 77x37x64 196x94x163 106 3 0 MCM040 410 186 76x36x63 193x91x160 100 2 8 535 243 77x37x64 196x94x163 106 3 0 MCM080 750 340 136x36x63 345x91x160 179 5 0 945 429 137x37x64 348x94x163 188 5 3 MCLO55 525 238 76x36x63 193x91x160 100 2 8 645 293 77x37x64 196x94x163 106 3 0 MCL110 910 413 136x36x63 345x91x160 179 5 0 1110 503 137x37x64 348x94x163 188 5 3 Weights are based on units w
85. Only Inlet Connection Upper Header Outlet Connection Height to Top of 37 7 8 Fan Guard 962mm 43 1 8 1095mm 18 E Disconnect P Switch Handle B A clearance of 36 in 914 4mm is 43 3 16 recommended on all sides for proper 1097mm operation and component access Expansion Tank Glycool CSU 3000 units supplied with compression tank expansion tank 44 5mm 4 1 4 108mm 14 3mm 25 4mm 4 Legs Furnished for 1 2 amp 3 Fan Models 6 Legs Furnished for 4 Fan Models 37 11 16 1 2 12 7mm Diameter Anchor Bolts typ Typical Footprint Unit Anchor Plan 1 All drycooler fan motors are 3 4hp 2 DSO model prefix indicates that the control section in the drycooler includes controls for a single pump package DDO model prefix indicates that the control section in the drycooler includes controls for a dual pump package DSF model prefix indicates that the control section in the drycooler includes controls for a single pump package on a fan speed control drycooler 3 DNT prefix indicates a single circuit with fan cycling but no pump controls DPNO000274 4 DNC prefix indicates a single circuit with no fan or pump controls Rev 1 Model CFM l s CFM l s Internal Net Note 2 of A B C D 60Hz 50Hz Volume Weight 3 4 Fans in mm in mm in mm in mm Note 1 Note 1 gal L Ib kg 112 1 51 1 2 1308 44 1118 42 10
86. RW Glycol 40 Propylene 104 F 40 C EWT 115 F 46 1 C LWT Return Air Temperature CRO35RW CRO20RW 105 F DB 71 F WB 40 6 C DB 21 6 C WB 17 RH Total KBTU H kW 141 4 41 5 88 3 25 9 Sensible KBTU H kW 141 4 41 5 88 3 25 9 Flow Rate GPM l s 34 4 2 17 21 8 1 37 Pressure Drop ft water kPa 98 2 293 6 67 6 202 2 Heat Rejection KBTU H kW 177 3 52 0 111 0 32 6 100 F DB 69 5 F WB 37 8 C DB 20 8 C WB 20 RH Total KBTU H kW 135 5 39 7 84 4 24 7 Sensible KBTU H kW 135 5 39 7 84 4 24 7 Flow Rate GPM l s 33 5 2 11 21 0 1 32 Pressure Drop ft water kPa 93 4 279 2 63 2 189 0 Heat Rejection KBTU H kW 171 2 50 2 107 0 31 4 95 F DB 67 9 F WB 35 C DB 19 9 C WB 23 RH Total KBTU H kW 129 9 38 0 80 5 23 6 Sensible KBTU H kW 128 9 37 7 80 5 23 6 Flow Rate GPM l s 32 4 2 04 20 1 1 27 Pressure Drop ft water kPa 87 4 261 3 58 3 174 2 Heat Rejection KBTU H kW 165 5 48 5 102 9 30 2 90 F DB 66 2 F WB 32 2 C DB 19 0 C WB 27 RH Total KBTU H kW 125 7 36 8 76 6 22 5 Sensible KBTU H kW 120 5 35 3 76 6 22 5 Flow Rate GPM l s 32 0 2 02 19 4 1 22 Pressure Drop ft water kPa 85 4 255 4 54 2 161 9 Heat Rejection KBTU H kW 161 1 47 2 98 9 29 85 F DB 64 5 F WB 29 4 C DB 18 1 C WB 31 RH Total KBTU H kW 121 8 35 7 73 9 21 6 Sensible KBTU H kW 111 3 32 6 71 2 20 9 Flow Rate GPM l s 31
87. WN General wire routing paths shown Wiring must be run in conduit and must be inside Liebert CRV frame and panels Attach conduit to inside of rails with cable ties e MIATA NI Cc a ins F OAN Control wiring must be run in separate conduit from power wiring Refer to Figure 13 for bottom entry wire routing Leia IG i e SIN NTS Front High Voltage Wire Routing Bottom Entry Point F R 19 Liebert CRV Air Cooled Systems Figure 12 Liebert IntelliSlot cable routing Top entry 300mm 12in air cooled models Low voltage field wiring twisted pair Liebert IntelliSlot Wire Routing Top of Unit Air Water Glycol Cooled and Chilled Water Models Low voltage field wiring twisted pair uas eB Ine alle DPNO002814 Pg 1 Rev 4 Liebert CRV 20 Air Cooled Systems Figure 13 Liebert IntelliSlot cable routing Bottom entry 300mm 12in air cooled models SOME COMPONENTS NOT SHOWN General wire routing paths shown Wiring must be run in conduit and must be inside Liebert CRV frame and panels Attach conduit to inside of rails with cable ties Shielded cable may be used If not control wiring must be run in separate conduit from power wiring Secure t
88. a DNT drycoolers y j disconnect is supplied l Factory installed disconnect switch optional Unit Alarm Connection Field supplied 24V Class 2 wiring to Terminals 24 amp 50 to indicate Standby Glycol Pump On Supplied with dual pump controls only Control interlock Field supplied Class 2 wiring to interlock drycooler 24V controls to Liebert room unit Not required on CSU 3000 7 8 Pump fuses amp overload 22 2mm diameter heaters shipped with hole provided in standard pump packages bottom of electric box are to be field installed in pump fuse block s and Flow switch connection ual pump Song eap Earth groia bar 50H i Connection terminals with factory wiring Trama ermina Tec ground from each high voltage SIM mounted flow component for field supplied earth grounding wire Electric service entrance Electric service A 7 8 22 2mm diameter hole not by Emerson Electric service connection in a 1 1 8 28 6mm knockout Field wired to Liebert terminals for power supply to pumps when pump controls Earth ground connection 60 HZ provided in bottom of electric CSU 3000 are factory supplied Dual Connection terminal for field box Interconnecting wiring pump connection shown 7 8 supplied earth grounding wire not by Emerson 22 2mm diameter knockouts provided in bottom DPNO000276 Refer to specification sheet for full load amp and wire size amp ratings of ele
89. a Wire part number 6454 UV resistant outdoor rated Category 5 5e or higher 3 Do not run the CANbus cable in the same conduit raceway or chase as high voltage No special considerations are required when the total external cable connection between the indoor unit and outdoor unit s 1s less than 450FT 137M For total external cable connections greater than 450FT 137M but less than 800FT 243M a CANbus isolator is required All wiring must be sized and selected for insulation case per NEC and other local codes Do not bend cables to less than four times the diameter of the cable DA Do not deform cables when securing in bundles or when hanging them 9 z3 9x 9 Avoid running the cables by devices that may introduce noise such as machines fluorescent lights and electronics 9 Avoid stretching cables 10 Separate high volt wires and other high voltage sources from CAN wires by 12 inches 11 The electrically commutated EC motors included in the Liebert MC are suitable for connection to power supplies with a solidly grounded neutral Some platforms can accept power supplies listed under Item below Contact the factory for more information NOTICE Risk of improper input power Can cause equipment damage The Liebert MC Condenser Small Platform MCS028 with Premium EC Control is designed to operate with wye connected power It will NOT operate properly with delta connected power Acceptable Power Supplies for 208 to 57
90. a level of redundancy The fans are in the front of the unit and pull air through the coil Supply Air Baffle Field adjustable modular supply air baffles are located in the discharge air stream They can be quickly and easily reconfigured to redirect airflow Liebert iCOM Control The Liebert CRV is controlled by the Liebert 1COM 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 LED s and a three level password protection system Unit to Unit communication with other Liebert CRV s and two Liebert IntelliSlot communication card housings are included as standard 2T Rack Temperature Sensors Each consists of a vented case with two temperature probes Three 2T rack sensors are standard with each Liebert CRV Up to ten 2T housings 20 temperature probes can be connected to a Liebert CRV300 One 2T housing and both sensor probes are to be attached to a rack the Liebert CRV is cooling 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 sen
91. accessible location on the water glycol supply to prevent particles from entering the heat exchanger Strainer bypass valves are reccomended to allow the strainer to be cleaned while maintaining flow to the cooling unit 3 Isolation valves should be installed near the Liebert CRV DPNO001985 Isolation valves are not supplied by Emerson but they Rev 1 are required for proper circuit operation and maintenance 75 Liebert CRV Liebert CRV Water Glycol Systems Figure 46 General arrangement diagram Water glycol 300mm 12 in models Distributor Evaporator Coil Digital Rotalock Valve Solenoid Y Valve High Pressure External Equalizer Transducer q Low Pressure Transducer Rotalock Valve ae Expansion Digital Scroll Valve Compressor High Pressure Switch i os 3 Way Valve eturn See Note 3 Configuration Filter Drier i Water a ee Way Valve See Sano Configuration Plate Condenser Water Glycol Supply B See Note 3 7 d Blocker XK B J Valve Disk MES Fitting See Note 4 Factory Refrigerant Piping J I J V Service Schrader Access Connection No Valve Core eee ee OOOO E Y Service Schrader Access Connection Wi
92. ad protection All motors have rain slingers permanently lubricated bearings and are rigidly mounted on die formed galvanized steel supports Head Pressure Control The Liebert VFD condenser control system is complete with variable frequency drive VFD inverter duty fan motor operating from 0 to 100 motor RPM based on head pressure refrigerant pressure transducers ambient temperature thermostat s motor overload protection and electrical control circuit factory wired in the control panel VFD control is always furnished on the fan adjacent to the connection end of the condenser which runs continuously with the compressors Other condenser fans are controlled by ambient thermostats and are either On or Off This system allows for operation at ambient conditions as low as 20 F 28 9 C Housing The condenser housing is constructed of bright aluminum sheet and divided into individual fan sections by full width baffles Structural support members including coil support frame motor and drive support are galvanized steel for strength and corrosion resistance Aluminum legs are provided with rigging holes for hoisting the unit into position SPD and Unit Disconnect Switch Surge protective device and locking disconnect factory installed and wired in enclosed condenser control section Alarm Contacts Normally open dry contacts provided for indication of VFD and SPD alarm condition Optional Features Liebert Air Cooled R 410A VFD Contr
93. al component problems before they occur Options Setup Menu shall provide operation settings for the installed components System Network Setup Menu shall allow Unit to Unit U2U communication and setup for Teamwork modes of operation up to 32 units Teamwork Modes of Operation Saves energy by preventing multiple units in an area from operating 1n opposing modes Diagnostics Service Mode The Liebert iCOM shall be provided with self diagnostics to aid in troubleshooting The microcontroller board shall be diagnosed and reported as pass not pass Control inputs shall be indicated as On or Off at the front display Control outputs shall be able to be turned On or Off from the front display without using jumpers or a service terminal An LED on a circuit board shall indicate each control output The Advanced Menus Shall Be Factory Settings Configuration settings shall be factory set based on the pre defined component operation Change Passwords Menu shall allow new passwords to be set or changed 145 Liebert CRV Guide Specifications Row Based Environmental Control System 2 12 Liebert iCOM Control Methods and Options Controlling Sensor Options Liebert iCOM shall be flexible in the sense that it shall allow for controlling the capacity and fan from multiple different sensor selections The sensor selections shall be Cooling Capacity Supply Remote Return Fan Speed Supply Remote Return
94. al scroll Compressor solenoid valve unloads the compressor to provide variable capacity operation The compressor has a suction gas cooled motor vibration 1solators internal thermal overloads manual reset high pressure switch rotalock service valves low pressure and high pressure transducer crankcase heater internal centrifugal oil pump and an operating speed of 3500 rpm 60Hz 2900 rpm 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 Liebert iCOM 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 Proper filtration must be field supplied when used on open loop water systems cooling towers etc Emerson recommends using a water glycol mixture when operating on a closed loop to avoid undesired ice formation in the winter Three Way Modulating Valve A three way modulating valve controls the water glycol flow through the brazed plate condenser The Liebert iCOM manages the valve actuator movement to maintain the desired condensing temperature for v
95. alve core near the Liebert CRV NOTES Inverted trap discharge and ar liquid lines to extend above the DPNO001984 1 Schematic representation shown Do not use for specific connection locations base of the coil a minimum of Rev 5 2 One or more additional pressure relief valves are required downstream of any 7 1 2 190mm and all field installed isolation Do not isolate any refrigerant circuits from i overpressurization protection Liebert CRV 26 Air Cooled Systems Figure 19 General arrangement Liebert MC condenser with and without Liebert Lee Temp Air cooled 300mm 12in units LIEBERT MC CONDENSER LIEBERT MC CONDENSER WITH LIEBERT LEE TEMP RECEIVER Pressure Transducer Plug Pressure Transducer Limit Condenser Coil Liquid Condenser Coil ZZ Hot Gas Discharge LIEBERT CRV AND ASSOCIATED PIPING Filter Solenoid Sight Expansion TFC e Liquid Drier Valve Glass Valve Distributor Ot i Evaporator Coil Sensing External Equalizer Bulb CR019 Digital Solenoid Valve High Pressure Low Pressure Transducer Transducer a Suction Line Digital Scroll Compressor Hot Gas Discharge Check Valve gt Liquid Return Factory refrigerant piping ___ _ _ ___ Field piping Y Service schrader access connection with valve core NOTES 1 Schematic representation shown
96. arious entering water temperatures The maximum differential pressure across the closed valve is 43 5 PSI 300 kPa Maximum system pressure is 230 PSI 1586 kPa 77 Liebert CRV Liebert CRV Water Glycol Systems Supply Air Baffle A field adjustable modular supply air baffle is located in the discharge airstream It can be quickly and easily configured to redirect airflow The angles of the vanes have been optimized to effectively distribute air to heat generating equipment in a variety of applications Liebert iCOM Control System The Liebert CRV is controlled by the Liebert 1COM The standard user interface is the Large Graphical Display 820x240 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 three level password protection system Unit to Unit communication with other Liebert CRV s and two Liebert IntelliSlot communication card housings are included as standard 2T Rack Temperature Sensors Each consists of a vented case with two temperature probes Three 2T rack sensors are standard with each Liebert CRV Up to ten 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 that the cooling unit is conditioning The sensors provide real time direct feedback to the cooling unit to optimize the amount of cooling and airflow r
97. ating SCCR The electrical panel provides a 65k amp SCCR Standard Features 300mm 12in Water Glycol Systems Source DPN003037 Rev 1 DX Cooling Coil The evaporator coil has 6 46 ft 0 60 m face area three rows deep It is constructed of copper tubes and hydrophilic coated aluminum fins The hydrophilic coating provides superior water carryover resistance stainless steel condensate drain pan is provided Refrigeration System Single refrigeration circuit includes a liquid line filter dryer and an adjustable externally equalized expansion 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 unloads the compressor to provide variable capacity operation The compressor has a suction gas cooled motor vibration 1solators internal thermal overloads manual reset high pressure switch rotalock service valves low pressure and high pressure transducer crankcase heater internal centrifugal oil pump and an operating speed of 3500 rpm 2 60Hz 2900rpm 50Hz Fans The unit is equipped with five plug fans direct driven centrifugal fans with backward curved blades and electronically commutated motors commonly referred to as EC plug fans The fan speed is variable and automatically regulated by the Liebert iCOM through all modes of operation Each fan has a dedicated motor and integrated speed controller which provid
98. atures Cooling capacity is regulated by varying the chilled water flow The maximum differential pressure across the closed valve is 200 PSI 1379 kPa Maximum system pressure is 325 PSI 2241 kPa Liebert IntelliSlot Web Card IS WEBL Provides ground fault isolated 10 100 baseT Ethernet connectivity for unit monitoring and management The supported management interfaces include SNMP for Network Management Systems H TTP for Web page viewing SMTP for e mail and SMS for mobile messaging Liebert IntelliSlot 485 Card IS 485L Provides ground fault isolated RS 485 Modbus network connectivity to Building Management Systems for unit monitoring and management Liebert IntelliSlot BUILDING MANAGEMENT CARD IS IPBML Provides ground fault isolated Modbus IP network connectivity to Building Management Systems for unit monitoring and management Liebert IntelliSlot SiteLink E Card IS 485EXI Provides ground fault isolated connection to a Liebert SiteLink E for monitoring and management Compatible with Liebert SiteScan Web 4 0 or newer version Filter The optional filters are two deep pleated 4 inch rated MERV11 following ASHRAE 52 2 60 6596 by ASHRAE 52 1 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 24V signal One Extra Common Alarm Contact Provides two sets of normally ope
99. bus connectors TB49 1 is the input terminal for CANbus high TB49 3 is the input terminal for CANbus low TB50 1 is output terminal for CANbus high TB50 3 is the output terminal for CANbus low Each CANbus cable shield is connected to terminal SH Item 9 5Bis the END OF LINE jumper 5C is the CANbus DEVICE ADDRESS DIP SWITCH CANbus cable not by Emerson See Note 2 6 Remote Unit Shutdown optional Replace existing jumper between terminals TB38 1 and TB38 2 with field supplied normally closed switch having a minimum 75VA 24VAC rating Use field supplied Class 1 wiring 7 Alarm Terminal Connections a Common Alarm Relay indicates when any type of alarm occurs TB74 1 is common TB74 2 is normally open and TB74 3 is normally closed 1 Amp 24VAC is the maximum load Use field supplied Class 1 wiring b Shutdown Alarm Relay indicates when condenser loses power or when a critical alarm has occurred that shuts down the condenser unit TB74 4 is common TB74 5 is normally open and TB74 6 is normally closed 1 Amp 24VAC is the maximum load Use field supplied Class 1 wiring Liebert CRV 38 Heat Rejection Liebert MC and Fin Tube Condensers 8 Indoor Unit Interlock and SPD Alarm terminals a On any call for compressor operation normally open contact is closed across Terminals 70 and 71 for Circuit 1 and normally open contact is closed across Terminals 70 and 230 for Circuit 2 from indoor uni
100. ck wires to the compressor side switch via field supplied CANbus communication wires from the indoor unit s Liebert iCOM or via both The control board shall use sensor and communication inputs to maintain refrigerant pressure by controlling each EC fan on the same refrigerant circuit to the same speed 2 17 1 5 Cabinet The condenser cabinet shall be constructed of bright aluminum sheet and divided into individual fan sections by full width baffles Internal structural support members including the coil support frame shall be galvanized steel for strength and corrosion resistance Panel doors shall be provided on two sides of each coil fan section to permit coil cleaning An electrical panel shall be contained inside a factory mounted NEMA 3R weatherproof electrical enclosure 2 17 1 6 Mounting Legs 2 17 1 6 1 Standard Aluminum Legs Aluminum legs shall be provided to mount the unit for vertical air discharge with rigging holes for hoisting the unit into position Standard height shall be 18in 457mm 2 17 1 6 2 Optional Galvanized Steel Legs with Bracing Condensers shall be shipped with 36in 914mm mounting legs with stabilization bracing Legs bracing and hardware shall be galvanized steel 2 17 1 6 2 Optional Galvanized Steel Legs with Bracing Condensers shall be shipped with 48in 1219mm mounting legs with stabilization bracing Legs bracing and hardware shall be galvanized steel 2 17 1 6 2 Optional Galvanized Steel Legs
101. coil All electrical connections and controls shall be enclosed in an integral weatherproof section of the drycooler The drycooler shall be designed for F C ambient Liebert CRV 152 Guide Specifications Row Based Environmental Control System 2 17 2 1 Fan Cycling Control Two or more thermostats shall be employed on drycoolers with two or more fans to cycle fans or groups of fans in response to leaving fluid temperatures The thermostat setpoints shall be listed on the factory supplied schematic 2 17 2 2 Pump Controls Single Pump Option Pump controls for a single glycol pump up to 7 5 hp shall be incorporated into the same integral electrical panel as the drycooler fan controls and may include fuses or circuit breakers as required for the pump motor Pump voltage phase and frequency shall be the same as the drycooler voltage phase and frequency Dual Pump Option Pump controls for a dual glycol pump system shall operate one pump as primary and the second pump shall operate as a standby pump Pump controls shall be incorporated into the same integral electrical panel controlling drycooler fans A field supplied flow switch shall sense loss of flow and switch to the standby pump for continuous system operation An internal switch shall allow manual selection of the primary lead pump 2 17 2 3 Pump Package 2 17 2 3 1 Single Pump Package This system shall be provided with a centrifugal pump mounted in a weatherproof a
102. crews Supplied DETAIL A DPNO003272 Front of Liebert CRV Pg 2 Rev 0 REAR Door Open Top of Leveling Foot Anchoring to Floor See Note 3 563 14 29 Typical 3 Places 1 Lower the four leveling feet until they contact the floor before attaching the bracket see Detail B Verify that the unit is level to avoid corrosion and health hazards caused by condensate accumulation 2 Bracket must be centered on the Liebert CRV s base see Detail A 3 Anchor the bracket to the floor Refer to the anchoring detail on Figure 88 4 Self drilling screws see Detail A to secure the bracket to the Liebert CRV 5 The bracket is also used in the rear of the Liebert CRV 6 This document is not to be used for field installation 133 Liebert CRV Seismic Application 600mm 24 Models Optional Unit Configuration Required Figure 90 Floor stand dimensions Top view ISO VIEW WITH FLOOR STAND ls 46 3 8 1179mm T 6 1 2 2 1 2 64mm 165mm T p E 1 1 2 L Hole to Hole eZ Oi ypiga 3 4 38mm 8 places 19mm i o EN isa L 2 3 4 2 O t 19mm O REAR l FRONT OF OF 2133 4 UNIT UNIT 551mm
103. cted power with a solidly grounded neutral It will not operate properly with wye connected power with high resistance or impedance ground or with delta connected power Acceptable Power Supplies 480V Nominal Units 480V wye with solidly grounded neutral and 277V line to neutral vac Power Supplies 480V Nominal Units Wye with high resistance or impedance ground Delta without ground or with floating ground Delta with corner ground Delta with grounded center tap Liebert CRV 100 Chilled Water Systems 600mm 24in and 300mm 12in Cabinets Figure 57 Electrical field connections 460V 300mm 12in chilled water unit DPNO02840 XN SS p Pg 5 Rev 5 v Ds 101 Liebert CRV Chilled Water Systems 600mm 24in and 300mm 12in Cabinets Figure 58 Power cable routing Bottom entry 300mm 12 chilled water models Use rear knockout on Main Disconnect for high voltage wire entry SOME COMPONENTS NOT SHOWN FOR CLARITY General wire routing paths shown Wiring must be run in conduit and must be inside Liebert CRV frame and panels Attach conduit to inside of rails with cable ties Control wiring must be run in separate condui
104. ctric box Rev 1 Liebert CRV 88 Chilled Water Systems 600mm 24in and 300mm 12in Cabinets CHILLED WATER SYSTEMS 600MM 24IN AND 300MM 12IN CABINETS Performance Data 600mm 24in Units Table 43 Capacities chilled water models CRO40RC 45 F 7 2 C EWT 50 F 10 C EWT 10 F 5 6 C Water Rise 10 F 5 6 C Water Rise 105 F DB 71 F WB 40 6 C DB 21 6 C WB 17 RH Total KBTU H kW 192 1 56 3 163 9 48 Sensible BTU H kW 177 51 9 163 5 47 9 Flow Rate GPM l s 39 1 2 5 33 6 2 1 Pressure Drop ft H2O kPa 55 2 164 8 41 122 5 100 F DB 69 5 F WB 37 8 C DB 20 8 C WB 20 RH Total KBTU H kW 176 4 51 7 148 5 43 5 Sensible BTU H kW 161 9 47 4 148 3 43 5 Flow Rate GPM l s 36 2 3 30 5 1 9 Pressure Drop ft H2O kPa 47 4 141 6 34 4 102 7 95 F DB 67 9 F WB 35 C DB 19 9 C WB 23 RH Total KBTU H kW 159 9 46 9 132 8 38 9 Sensible BTU H kW 146 4 42 9 132 8 38 9 Flow Rate GPM l s 32 7 2 1 27 3 1 7 Pressure Drop ft H2O kPa 39 8 118 9 28 2 84 3 90 F DB 66 2 F WB 32 2 C DB 19 0 C WB 27 RH Total KBTU H kW 142 6 41 8 116 9 34 3 Sensible BTU H kW 130 8 38 3 116 9 34 3 Flow Rate GPM l s 29 3 1 8 24 2 1 5 Pressure Drop ft H20 kPa 32 5 97 22 5 67 4 85 F DB 64 5 F WB 29 4 C DB 18 1 C WB 31 RH Total KBTU
105. d by Emerson but they are required for proper circuit operation and maintenance 107 Liebert CRV Chilled Water Systems 600mm 24in and 300mm 12in Cabinets 7 10 Piping 300mm 12in Units Figure 64 Connections CR032 chilled water models 43 1 8 1095mm Front of Unit 11 13 16 300mm 22 5 16 567mm 27 13 16 707mm 39 1 16 992mm 67mm 3 11 16 94mm 3 3 16 80mm 3 76mm 2 5 8 2 5 16 59mm 1 9 16 40mm 25 13 16 656mm 7 13 16 ot 198mm 9 229mm 70 TOP CONNECTIONS 2 3 4 mm Piping and electrical connections available at the top and bottom of unit GD CPB BOTTOM CONNECTIONS possible with raised floor 26 13 16 681mm 27 13 16 706mm 32 7 8 835mm CWSB DPNO002815 CWRB Rev 3 Detail A Table 51 Connections Chilled water models 300mm 12in Unit Top Connections CR032 60Hz Unit Bottom Connections CR032 60Hz CWST Chilled Water Supply 1 1 4 FPT CWSB Chilled Water Supply 1 1 4 FPT CWRT Chilled Water Return 1 1 4 FPT CWRB Chilled Water Return 1 1 4 FPT CPT Condensate Pump Knockout 3 4 19mm GD Gravity Coil Pan Drain Coil Bleed Rubber Pl Knockout 3 4 and 2 oll Bleeder ubber Flug 19mm and 51mm CBV Schrader Valve 2 51mm CPB Condensate Pump Combination Knocko
106. d 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 Liebert 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 1s indicated on the Liebert 1COM 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 back flow 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 Low Noise Package The Low Noise Package reduces the level of sound emitted from the compressor The package consists of a 3 8 inch closed cell polymeric 4 5 8 5 lb ft density compressor sound jacket that encloses the compressor Additional half inch closed cell polymeric 3 8 Ib ft density sound deadening material is affixed to the underside of the superior service access panel located above the compressor and attached to the inner side of the compressor compartment panels that face the hot and cold aisles All sound deadening ma
107. ded Figure 49 Expansion tank 30 1 2 774 7mm 6 13 16 17 14 173mm 438 2mm 9 1 2 F P T 228 6mm Fitting 1 2 F P T Fitting 2 3 4 24 2 4 2 g 69 9mm 63 5mm 177 an 1 T 161 6 1 2 12 7mm omm 25 4mm 25 4mm i 8 Holes 4 1 2 1 1 2 8 8 gal 33 3 L 38 1mm ia 1 8 38 1mm Expansion Tank DPNO000329 155 6mm 3 76 2mm Rev 0 Liebert CRV 84 Heat Rejection Drycoolers Table 41 Pump data Connections Electric 60Hz Pump NPT Female 208 230 460 575 Model Suction Discharge HP PH FLA FLA FLA FLA 3 4 1 1 4 3 4 3 4 1 7 6 6 9 N A N A 3 4 1 1 4 3 4 3 4 3 3 5 3 2 1 6 1 3 1 1 2 1 1 4 3 4 1 1 2 3 6 6 6 0 3 0 2 4 2 1 1 4 3 4 2 3 7 5 6 8 3 4 2 7 3 1 1 2 1 3 3 10 6 9 6 4 8 3 9 5 1 1 2 1 1 4 5 3 16 7 15 2 7 6 6 1 7 1 2 3 3 7 1 2 3 24 2 22 0 11 0 9 0 To calculate total pump and drycooler Full Load Amps FLA Total FLA Pump FLA Drycooler FLA To Calculate total pump and drycooler Wire Size Amps WSA Total WSA Largest Motor FLA x 1 25 Sum of other Motor FLA values To Calculate Total Pump and Drycooler Maximum Overcurrent Protective Device OPD Total OPD Largest Motor FLA x 4 0 Sum of other Motor FLA values Select standard fuse size 15A 20A 25A 30A etc Source DPN000329 Rev 0 Figure 50 Pump curve 60Hz 180 160 140 120
108. des a level of redundancy Both impellers shall be made of steel and balanced The EC plug fans shall be mounted in the front of the unit and draw air through the coil Advanced Airflow Management Supply Air Baffle System Models CR020 CR035 CR040 A field adjustable modular supply air baffle system shall be located in the discharge airstream on the front of the cabinet to direct air toward the equipment racks and balance airflow requirements within the row The six modular baffle segments shall be easily reconfigurable to redirect airflow as cooling requirements change Controlling the airflow prevents hot spots and maintains high return air temperatures by not blowing cold air over racks or out the ends of aisles By focusing the cold air where it is needed and meeting the servers requirements the need for excessive airflow and energy consumption is eliminated Liebert CRV 140 Guide Specifications Row Based Environmental Control System 2 4 2 4 1 2 4 2 2 4 3 Models CR019 CR032 A field adjustable modular supply air baffle system shall be located in the discharge airstream on the front of the cabinet to direct air toward the equipment racks and balance airflow requirements within the row The five modular baffle segments shall be easily reconfigurable to redirect airflow as cooling requirements change Controlling the airflow prevents hot spots and maintains high return air temperatures by not blowing cold air over rack
109. direct expansion slab cooling coil shall have 6 2ft 0 576 m face area three rows deep It shall be constructed of copper tubes and hydrophilic coated aluminum fins The hydrophilic coating shall significantly improve the speed of condensate drainage from the fins and shall provide superior water carryover resistance One stainless steel condensate drain pan shall be provided 137 Liebert CRV Guide Specifications Row Based Environmental Control System 2 1 1 3 Compressor The compressor shall be scroll type with variable capacity operation from 20 10096 commonly known as a digital scroll The compressor solenoid valve shall unload the compressor to provide variable capacity operation The compressor shall have a suction gas cooled motor vibration 1solators internal thermal overloads manual reset high pressure switch rotalock service valves low pressure and high pressure transducer crankcase heater internal centrifugal oil pump and an operating speed of 3500 rpm at 60Hz 2900rpm 50Hz The compressor shall be located outside the airstream and shall be removable and serviceable from the rear of the unit 2 1 1 4 R410A Refrigerant The system shall be designed for use with R410A refrigerant which meets the U S Clean Air Act for phaseout of HCFC refrigerants 2 1 1 5 Low Noise Package The Low Noise Package shall reduce the level of sound emitted from the compressor The package shall consist of a 3 8 inch closed cell po
110. e Relief Valve Fusible Plug Check Valve c Mec VALE o Lielbert Lee Temp l Receiver ness cue Liquid Return Condenser Coil VFD VFD Transducer Condenser Coil Lee Temp Hot Gas Die uae lt q pec Hot Gas Discharge SAL Liebert CRV and Associated Piping Solenoid Expansion Filter Sight Valve Valve Drier Glass OI Distributor Evaporator Coil Sensing External Equalizer Bulb CR020 Digital Service Valve Solenoid Valve High Pressure Transducer Vibration Absorber High Pressure F Traps Every Cut Out Suction Line 45ft 4 6m Low Pressure Transducer of Rise CR035 Digital Solenoid Valve Digital Scroll Compressor Service Valve solation Valve Hot Gas Discharge Vibration Absorber Check Valve p y tion Isolation Valve Liquid Return h Factory refrigerant piping Components are not supplied by Field piping Emerson but are required for V Service Schrader access connection no valve core proper circuit operation and maintenance Should be located Y Service Schrader access connection with valve c
111. e Temp control system is furnished for each circuit and consists of an insulated heated receiver tank with sight glasses pressure relief valve roto lock valve and head pressure operated three way valve for field connection to air cooled condenser This system allows operation at ambient conditions as low as 30 F 34 C Housing The condenser housing is constructed of bright aluminum sheet and divided into individual fan sections by full width baffles Structural support members including coil support frame motor and drive support are galvanized steel for strength and corrosion resistance Aluminum legs are provided with rigging holes For Hoisting The Unit Into Position Unit Disconnect Switch A locking disconnect factory installed and wired in enclosed condenser control section Electrical Controls Electrical controls overload protection devices and service connection terminals are provided and factory wired inside the integral NEMA 3R electrical panel section of the housing Only supply wiring and indoor unit interlock wiring are required at condenser installation Liebert CRV 54 Heat Rejection Liebert MC and Fin Tube Condensers 4 10 Piping Liebert Fin Tube Condensers Figure 36 General arrangement diagram fin tube condensers 600mm 24 in air cooled models with and without Liebert Lee Temp OUTDOOR VFD CONDENSER OUTDOOR LIEBERT LEE TEMP CONDENSER Head Pressure Optional Field Installed Control Valv
112. e by wrapping them with wet cloth or suitable heat sink compound Isolate piping from building using vibration isolating supports Refer to the indoor unit s user manual for appropriate piping sizes Install traps on the hot gas discharge lines at the bottom of any rise over 5 feet high If the rise exceeds 265 feet 7 5m then install a trap in 20 foot 6m increments or evenly divided Pitch horizontal hot gas piping down at a minimum rate of 1 2 per 10 ft 42mm per 10m so that gravity will aid in moving oil in the direction of refrigerant oil flow Consult factory if Liebert Lee Temp condenser is below the evaporator or if a condenser not equipped with Liebert Lee Temp is more than 15 ft 4 6m below the evaporator Consult factory if piping run exceeds 150 feet 46m equivalent length on traditional DX units Consult factory if piping run exceeds 300 feet 91m actual length or 450 feet 137m equivalent length on units installed with Liebert EconoPhase units Record linear length of liquid and discharge line required from the indoor unit to the condenser accurately for calculating refrigerant requirements Keep piping clean and dry especially on units with POE oil R407C R410A or R22 refrigerant Avoid piping runs through noise sensitive areas Do not run piping directly in front of indoor unit discharge airstream Refrigerant oil do not mix oil types or viscosities Consult indoor unit for refrigerant type and oil re
113. eat Rejection Interlock On any call for compressor operation normally open dry contact is closed across Terminals 70 and 71 to heat rejection equipment 1A 24VAC maximum load Use field supplied Class 1 wiring CANbus Connector Terminal block with Terminals 49 1 CAN H and 49 3 CAN L SH shield connection The terminals are used to connect the CANbus communication cable provided by others from the indoor unit to the Liebert MC Premium model CANbus Cable CANbus cable provided by others to connect to the outdoor condenser No special considerations are required when the total external cable connection between the indoor unit and outdoor unit s is less than 450 ft 137m A CANbus isolator is required for total external cable connections greater than 450 ft 137m but less than 800 ft 243m Cable must meet the following specifications Liebert CRV 66 Liebert CRV Water Glycol Systems Conductors 22 18AWG stranded tinned copper Twisted pair minimum four twists per foot 305mm Braided shield or foil shield with drain wire Low capacitance 15pF ft or less UL approved temperature rated to 167 F 75 C UL approved voltage rated to 300V UV resistant and moisture resistant if not run in conduit Plenum rated NEC type CMP if required by national or local codes Examples Belden 89207 plenum rated or Alpha Wire 6454 Category 5 5E or higher 5 2 2 Electrical Connections Optional Features 600mm 24in Wate
114. eat generating equipment in a wide variety of applications Liebert iCOM The Liebert CRV is controlled by the Liebert iCOM 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 LED s and a three level password protection system Unit to Unit communication with other Liebert CRV s and two Liebert IntelliSlot communication card housings are included as standard 2T Rack Temperature Sensors Each consists of a vented case with two temperature probes Three 2T rack sensors are standard with each Liebert CRV Up to ten 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 Liebert CRV is cooling 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 in a daisy chain configuration Remote Shutdown Terminal Provides a location to remotely shut down the unit Common Alarm Contact Provides a set of normally open N O
115. ebert MC Premium model CANbus Cable CANbus cable provided by others to connect to the outdoor condenser No special considerations are required when the total external cable connection between the indoor unit and outdoor unit s is less than 450 ft 137m For total external cable connections greater than 450 ft 137m but less than 800 ft 243m a CANbus isolator is required Cable must have the following specifications Conductors 22 18AWG stranded tinned copper Twisted Pair minimum four twists per foot 305mm Braided shield or foil shield with drain wire Low Capacitance 15pF ft or less UL approved temperature rated to 167 F 75 C UL approved voltage rated to 300V UV resistant and moisture resistant if not provided in conduit Plenum rated NEC type CMP if required by national or local codes Examples Belden 89207 plenum rated or Alpha Wire 6454 Category 5 5e or higher 95 Liebert CRV Chilled Water Systems 600mm 24in and 300mm 12in Cabinets 7 6 2 7 6 3 7 7 Electrical Connections Optional Features 600mm 24in Wide Models Source DPN001884 Rev 7 Pg 2 13 Condensate Pump High Water Alarm available when optional pump is installed On pump high water indication normally open dry contact is closed across Terminals 88 and 89 for remote indication 1A 24VAC maximum load Use field supplied Class 1 wiring 14 Liebert Liqui tect Shutdown and Dry Contact available w
116. ection KBTU H kW 94 8 27 8 94 6 27 7 80 F DB 66 6 F WB 26 6 C DB 19 2 C WB 50 RH Total KBTU H kW 81 8 24 81 1 23 8 Sensible KBTU H kW 55 5 16 3 55 2 16 2 Flow Rate GPM l s 16 9 1 07 16 9 1 07 Pressure Drop ft water kPa 36 5 109 2 36 5 109 2 Heat Rejection KBTU H kW 100 8 29 5 100 4 29 4 1 The net capacity data has fan motor heat factored in for all ratings 2 Capacity data is factory certified to be within 596 tolerance Liebert CRV 62 Liebert CRV Water Glycol Systems Table 31 Physical data 600mm 24in water glycol cooled systems CR020RW CRO35RW Fan Data 2454 4170 3260 5540 Total Airflow CFM m h 2454 4170 3260 5540 Total Fan Motor hp kW 0 8 0 6 1 4 1 06 Number of Fans 2 Evaporator Coil Face Area ft m 7 26 0 674 Rows 4 5 Face Velocity FPM m s 339 1 72 449 2 28 Electric Reheat Single Stage Capacity BTU H kW 460V 20 472 6 0 208V 16 719 4 9 Steam Generating Humidifier Capacity Ib hr kg hr 5 2 3 Capacity kW 1 79 Condensate Pump Dual Float Type Capacity GPM l m 6 22 7 Filter Section Disposable Type MERV 8 Standard Pleated Filter Number 2 Nominal Size in mm 31 1 2 x 17 1 2 x 4 800 x 445 x 100 Effective Surface Area ft m 16 4 1 52 MERV 11 Optional Pleated Filter Quantity 2 Nominal Size
117. ed 600mm 24in wide models Access required to service the Liebert CRV within the row Rear service area is S B or StA when B is not available P os 25 96 35 9 16 E 650mm 903mm Dd 13 3 4 A 350mm Nominal 78 3 4 REAR 2000mm 25 9 16 B 650mm FRONT 3 15 16 i 100mm Door 12 107 5 16 Fully 305mm 2725mm Open 46 1 4 ou TOP VIEW For proper airflow i distribution Align the front door 21 5 8 of neighboring racks 550mm with the front corner of the Liebert CRV i 3 5 16 __23 5 8 100mm 600mm 27 9 16 700mm Air Filters REAR VIEW WEIGHT Ib kg CRO020R 772 350 CRO35R 849 385 Front or Rear Clearance Required DPN001791 Rev 3 71 Liebert CRV Liebert CRV Water Glycol Systems Figure 42 Cabinet and floor planning dimensions Water glycol cooled 300mm 12in wide models Access Required to Service the Unit Between Existing Racks Within the Row Se o a 36 914 4mm REAR Liftoff door TOP VIEW 43 3 1100mm Access Required to Install the Unit 4 Between Existing Racks Within the Row FRONT with Display 36 914 4mm ONLY Front or Rear Clearance Required Zo i gt Lam e 300mm e 49 2 1250mm win Installation Depth WEIGHT Ib kg 247 545
118. ed and adjusted It features push button navigation operational status LEDs and a three level password protection system Unit to Unit communication with other Liebert CRV s and two Liebert IntelliSlot communication card housings are included as standard 2T Rack Temperature Sensors Each consists of a vented case with two temperature probes Three 2T rack sensors are standard with each Liebert CRV Up to ten 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 Liebert CRV is cooling 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 in a daisy chain configuration Remote Shutdown Terminal Provides a remote location to shut down the unit Common Alarm Contact Provides 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 side panels separate the half inch 2 0 lb ft insulation from the airstream The unit is mounted on casters for quick installatio
119. elief valve downward The following materials are supplied by Emerson for each circuit shipped loose with condenser for field installation insulated Liebert Lee Temp storage tank with two sight glasses head pressure control valve check valve rotalock valve and pressure relief valve All other S piping to be supplied and installed by others SS H LL Discharge Line D ZF Inverted Trap from Unit N KY field supplied field supplied es q to extend 7 1 2 190 5mm AX above coil base Positi Metal osition elbow to direct f N Clam relief valve down 7 Fasten Liquid and Hot Gas Lines P Liquid Return to leg using flat surface clamps Isolator DAC Line to Unit with isolators field supplied Detail A A Tells iel supplied B Support field piping separately S ANM ug to avoid coil damage and loss of Hot Gas Line field supplied M E DE PP DPN001623 Liquid Line field supplied Pg 3 Rev 7 Table 26 Piping and refrigerant sizes for Liebert Lee Temp condensers with R 410A Condenser Piping Connection Sizes Condenser Connections O D in Liebert Lee Temp Connections I D in Liebert Lee Temp Hot Gas Liquid to Receiver Condenser Model Hot Gas Liquid Size in mm Tee L T Valve Out DCSL28K 1 1 8 7 8 9 x 36 229 x 914 1 1 8 5 8 7 8 DCSL60K 1 1 8 7 8 11 x 36 279 x 914 1 1 8 5 8 7 8 DCSL90K 1 1 8 7 8 11 x 48 279 x 1219 1 1 8 5 8 7 8 So
120. equired 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 in a daisy chain configuration Remote Shutdown Terminal Provides a location to remotely shut down the unit Common Alarm Contact Provides 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 half inch 2 0 Ib 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 81 open area The rear door utilizes a Kn rr rack style handle and hinges Service Access All service and maintenance is performed through the front or 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 four inch filters rated MERV8 based on ASHRAE 52 2 2007 located within the cabinet and accessible from the rear of the unit A filte
121. er Glycol Cooled C Chilled Water Cooled Digit 8 Fan Type 1 Variable Speed EC fans Digit 9 Power Supply A 460V 3ph 60Hz 600mm 24 C 208V 3ph 60Hz 600mm 24 Y 208 230V 3ph 60Hz 300mm 12 P 208 230V 1ph 60Hz 300mm 12 Control transformer can be tapped to provide 240V 1ph 60Hz K 120V 1ph 60Hz 300mm 12 3 460V 3ph 60Hz Wye with Neutral required 300mm 12 Digit 10 Cooling System 2 Two Way Valve CW Models Only 3 Three way Valve CW Models Only 7 R 410A Digital Scroll Air Cooled and 600mm 24 W G Only 4 Top Connections Only 300mm 12 W G only 5 Bottom Connections Only 300mm 12 W G only Digit 11 Humidifier 0 None S Steam Generating Canister 600mm 24in models only Digit 12 Control System D Liebert iCOM with Large Graphic Display Digit 13 Reheat 0 None 1 Electric Reheat 600mm 24in models only Digit 14 Air Filter A 2 MERV 8 300mm 12in models only C 1 2 MERV 1 and Clog Filter Switch 300mm 12in models only 8 4 MERV 8 Clogged Filter Switch 600mm 24in models only 9 4 MERV 11 Clogged Filter Switch 600mm 24in models only Digit 15 Water Glycol Valve Type 1 Two Way Valve W G only OR Default Air Cooled Selection 7 Three Way Valve W G only H Default CW Selection Digit 16 Enclosure 1 No Certification Standard Color Z 7021 Black 3 Seismic Certification Level
122. erior water carryover resistance Two stainless steel condensate drain pans are provided Chilled Water System The water circuit includes a three way modulating valve The Liebert iCOM positions the valve in response to room conditions Cooling capacity is 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 fan speed is variable and automatically regulated by the Liebert iCOM through all modes of operation Each fan has a dedicated motor and speed controller that provides a level of redundancy The fans are on the rear panel of the unit and push air through the coil Three Way Modulating Valve A three way modulating valve controls the chilled water flow passing through the cooling coil The Liebert iCOM manages the valve actuator movement to provide the desired amount of cooling for various entering water temperatures Cooling capacity is regulated by bypassing chilled water around the coil The maximum differential pressure across the closed valve is 200 PSI 1379 kPa Maximum system pressure is 325 PSI 2241 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 h
123. es a level of redundancy The fans are in the front of the unit and pull air through the coil Supply Air Baffle Field adjustable modular supply air baffles are located in the discharge air stream They can be quickly and easily reconfigured to redirect airflow Liebert iCOM The Liebert CRV is controlled by the Liebert 1COM 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 LED s and a three level password protection system Unit to Unit communication with other Liebert CRV s and two Liebert IntelliSlot communication card housings are included as standard Water Glycol Condenser Stainless steel brazed plate condenser Water side threaded connections are provided for convenience Proper filtration must be field supplied when used on open loop water systems such as a cooling tower Emerson recommends using a water glycol mixture when operating on a closed loop to avoid ice formation in the winter Three Way Modulating Valve A three way modulating valve controls the water glycol flow through the brazed plate condenser The Liebert iCOM controls the valve actuator movement to maintain the desired condensing temperature for various entering water temperatures The maximum differential pressure across the closed valve is 43 5 PSI 300 kPa Maximum system pressure
124. es shall be factory balanced tested before shipment and mounted securely to the condenser structure 2 17 1 3 1 EC Fan Motor The EC fan motors shall be electronically commutated for variable speed operation and shall have ball bearings The EC fans shall provide internal overload protection through built in electronics Each EC fan motor shall have a built in controller and communication module linked via RS 485 communication wire to each fan and the Premium Control Board allowing each fan to receive and respond to precise fan speed inputs from the Premium Control Board 2 17 1 4 Electrical Controls Electrical controls and service connection terminals shall be provided and factory wired inside the attached control panel section A locking disconnect switch shall be factory mounted and wired to the electrical panel and controlled via an externally mounted locking and lockable door handle Only high voltage supply wiring and low voltage indoor unit communication interlock wiring shall be required at condenser installation 151 Liebert CRV Guide Specifications Row Based Environmental Control System 2 17 1 4 1 Premium Control The EC fan Premium Control System shall include an electronic control board EC fan motor s with internal overload protection refrigerant and ambient temperature thermistors and refrigerant pressure transducers The control board shall receive an indoor unit run signal via field supplied low voltage interlo
125. essure Drop ft water kPa 56 9 170 2 31 1 92 9 Heat Rejection KBTU H kW 166 5 48 8 165 3 48 4 85 F DB 64 5 F WB 29 4 C DB 18 1 C WB 31 RH Total KBTU H kW 134 8 39 5 132 1 38 7 Sensible KBTU H kW 117 3 34 4 116 1 34 Flow Rate GPM l s 27 1 1 71 20 3 1 28 Pressure Drop ft water kPa 54 5 162 9 31 0 92 8 Heat Rejection KBTU H kW 162 5 47 6 161 5 47 3 80 F DB 62 8 F WB 26 7 C DB 17 1 C WB 37 RH Total KBTU H kW 130 9 38 4 128 4 37 6 Sensible KBTU H kW 107 7 31 6 106 5 31 2 Flow Rate GPM l s 26 0 1 64 19 8 1 25 Pressure Drop ft water kPa 50 2 150 29 5 88 3 Heat Rejection KBTU H kW 158 6 46 5 157 6 46 2 80 F DB 66 5 F WB 26 7 C DB 19 2 C WB 50 RH Total KBTU H kW 139 5 40 9 136 8 40 1 Sensible KBTU H kW 95 8 28 1 94 6 27 7 Flow Rate GPM l s 28 0 1 77 21 2 1 34 Pressure Drop ft water kPa 57 9 173 2 33 7 100 8 Heat Rejection KBTU H kW 167 3 49 0 166 1 48 7 1 The net capacity data has fan motor heat factored in for all ratings 2 Capacity data is factory certified to be within 5 tolerance 3 Data rated with standard filter Liebert CRV 60 Liebert CRV Water Glycol Systems Table 29 Performance data GLYCOL cooled 600mm 24in models CRO35RW and CRO20
126. f Unit Connection Isolation valves are not supplied by Emerson but they are required for proper circuit operation and maintenance DPN002976 Rev 0 109 Liebert CRV Chilled Water Systems 600mm 24in and 300mm 12in Cabinets 7 11 Sound Data 600mm 24in and 300mm 12in Chilled Water Systems Tables 52 and 53 show the sound pressure level in free field at 5ft 1 5m high and 6 1 2ft 2m in front of the air conditioner with compressor and fan in operation The sound data is without the Low Sound Package compressor jacket and sound deadening panel insulation installed Sound power is an absolute measurement that can be used for comparisons Sound pressure values can be used for comparisons only when all sound measurement parameters match exactly Table 52 Sound data CRO40RW 600mm 24in chilled water 2 Fans with Filter Sound Power Level PWL Sound Pressure Level SPL Airflow Octave Band Frequency Hz Fan Speed SCFM 100 3325 m3 h 31 5 86 4 63 78 1 125 dB 82 4 250 dB 84 6 500 dB 79 2 1000 dB 75 2000 dB 76 4 4000 70 9 8000 63 A Scale Weighted dB A 8 82 8 side 2m distance free field conditions 2m f f dBA 5650 At Suction 71 6 75 2708 4600 80 8 72 5 76 8 79 73 6 69 4 70 8 65 3 58 2 77 2 66 0 50 1972 3350 75 1 66 8
127. for e mail and SMS for mobile messaging Supports dual IP and 485 protocols simultaneously Filter Two optional deep pleated filters each 2 inch rated MERV8 based on ASHRAE 52 2 2007 located within the cabinet and accessible from the rear of the unit A filter clog alarm is included One 1 Extra Common Alarm Contact Provides two sets of normally open contacts for remote indication of unit alarms Liebert Liqui tect Sensor A solid state water sensor hermetically sealed to keep out dust and dirt The alarm system is activated when the sensor detects moisture Liebert CRV 32 Heat Rejection Liebert MC and Fin Tube Condensers TM 4 0 HEAT REJECTION LIEBERT MC AND FIN TUBE CONDENSERS All Liebert condensers are designed to work with the Liebert CRV 4 1 Liebert MC Condenser Selections 600mm 24in and 300mm 12in CRV Units For best performance lowest sound and most energy efficient operation Emerson recommends matching a Liebert CRV 20kW or 35kW air cooled unit with a Liebert MC condenser The Liebert MC provides greater heat rejection and lower condensing temperatures than the legacy fin tube condenser match ups shown below Table 12 Traditional open room 95 F 35 C 23RH return air conditions Unit Outdoor Design Ambient Temperature F C Indoor Model Width 95 35 100 38 105 41 110 43 115 46 120 49 CRO19RA 300mm 12in CROZOA MCS028E1 MCMO040E1 MCMO40E1 MCMO040E1 MCLO55E1 MCL
128. fs ii 9 4 9 9 o i NE Ole LA BI ARBE 7 i l i 1 tani e jo s Ojo wA z mE z z v 11 Right Two d ES Left Knockout Knockouts OQ S MN dened Item appears only with fen D Liebert Lee Temp board oo one o DPN002169 DPN002374 MUT Pg 1 Rev 7 Pg 1 Rev 6 39 Liebert CRV Heat Rejection Liebert MC and Fin Tube Condensers Notes to Liebert MC Condensers Electrical Field Connections Source DPN002169 Rev 7 1 Refer to specification sheet for unit voltage rating full load amp and wire size amp ratings 2 The CANbus wiring is field supplied and must be Conductors 22 18AWG stranded tinned copper Twisted pair minimum four twists per foot 305mm Braided shield or foil shield with drain wire Shield must be wired to ground at indoor unit Low capacitance 15pF FT or less UL approved temperature rated to 167 F 75 C UL approved voltage rated to 300V UV resistant and moisture resistant if not run in conduit Examples Belden part number 89207 plenum rated or Alph
129. gas charge and connect to the field piping Finally vent the evaporator unit s charge of inert gas and make its piping connection last Keep accurate length measurements of field piping for estimating system charge Follow all proper brazing practices including a dry nitrogen purge to maintain system cleanliness The condenser connection pipes must be wrapped with a wet cloth to keep the pressure and temperature sensors cool during any brazing 47 Liebert CRV Heat Rejection Liebert MC and Fin Tube Condensers Figure 30 Liebert MC Condenser piping Single circuit units Note Inverted traps in refrigerant lines are internal to the Liebert MC and field installation is not needed Leaving Liquid Line Entering Hot Gas Line Em Field Piping Optional fusible plug service kit to be brazed into the liquid line s in either the vertical or horizontal position where required Vertical position is recommended horizontal position is optional Horizontal Horizontal Vertical Leaving i eg ME i DPN002166 Fine MCS028 Only Rev 2 Table 18 Liebert MC single circuit piping sizes Number Connection Sizes OD In Model No of Fans Hot Gas Line Liquid Line MCS028 1 7 8 5 8 MCMO040 1 7 8 5 8 MCMO080 2 1 1 8 7 8 MCLO055 1 1 1 8 7 8 MCL110 2 1 3 8 1 1 8 Source DPN002166 Rev 2 Liebert CRV 48 Heat Rejection Liebert M
130. ge Connection Through the Top of the Unit 1 1 4 82mm and 1 3 4 44 5mm diameter concentric knockout not shown see Figure 17 Electrical Service Three Phase 208 230V 60Hz units Three phase with Neutral 460V wye connected 5 wire 3 phase neutral ground Single phase 208 230V chilled water only Connect to terminals on disconnect switch Electrical service not by Emerson Use copper conductors only Wire per local codes Refer to specification sheet for total unit full load amps wire size amps and maximum overcurrent protective device size Refer to NOTICE on page 13 for information about electrical service Liebert CRV 14 Air Cooled Systems 3 6 1 D 10 11 12 13 Electrical Service cord connected Refer to serial tag for unit electrical service requirements Single phase 120V 60Hz chilled water only 1 3 4 44mm diameter knockouts provided in the top and bottom of the unit for the power cord to exit the unit The power cord is factory supplied with an L5 20 plug Factory Installed Locking Disconnect Switch Earth Ground Terminal for field supplied earth grounding wire Low Voltage Connection Through the Bottom of the Unit Two knockouts 7 8 22mm diameter not shown see Figure 17 Low Voltage Connection Through the Top of the Unit Two knockouts 7 8 22mm diameter not shown see Figure 17 Remote Unit Shutdown Replace existing jumper between Terminals
131. ged device shall integrate directly into the system The system shall support enterprise level databases including Microsoft SQL The system shall support exporting of all recorded parametric trend data The system shall operate on a server determined by the customer Specific server brand or function is not permissible The system shall support virtual server environments by default The system shall include at no additional cost one 1 year of Software Assurance 2 16 6 2 Approved Products The Critical Infrastructure Monitoring System shall be Liebert Nform as manufactured by Emerson Network Power Liebert Corporation No substitutions shall be accepted 2 16 6 3 Scope of Work Owner Supplied Items The owner shall furnish the following system components Network LAN hardware and software required to provide an Ethernet backbone to be used for transport of IP data packets from network interface cards installed in all equipment to the Critical Infrastructure server and to the Liebert Nform workstations These components may include hubs routers cabling network operating systems firewalls IP addresses virtual private network VPN and other components as required The owner shall supply network drops for the Critical Infrastructure server workstation clients and all network interfaced equipment Dedicated Critical Infrastructure server meeting the following minimum requirements Microsoft Windows 7 XP 2003 Wind
132. h return air temperatures by not blowing cold air over racks or out the ends of aisles By focusing the cold air where it is needed and meeting the rack equipment s cooling requirements the need for excessive airflow and energy consumption is eliminated 141 Liebert CRV Guide Specifications Row Based Environmental Control System 2 5 2 6 2 7 Models CR019 CR032 A field adjustable modular supply air baffle system shall be located in the discharge airstream on the front of the cabinet to direct air toward the server racks and balance airflow requirements within the row The five modular baffle segments shall be easily reconfigurable to redirect airflow as cooling requirements change Controlling the airflow prevents hot spots and maintains high return air temperatures by not blowing cold air over racks or out the ends of aisles By focusing the cold air where it is needed and meeting the rack equipment s cooling requirements the need for excessive airflow and energy consumption is eliminated Locking Disconnect Switch Models CR020 CR035 CR040 A manual disconnect switch shall be mounted in the electrical panel and be capable of disrupting the flow of power to the unit The electric panel compartment shall be accessible only with the switch in the Off position It shall be located behind the Liebert iCOM display door for quick access Models CR019 CR032 A manual disconnect switch shall be mounted in the electrical pa
133. h the Liebert CRV The drycoolers provide glycol to the Liebert CRV s internal high efficiency brazed plate condenser to maintain proper condensing temperatures Ethylene or Propylene glycol must be added to the water loop to prevent freezing during low outdoor temperatures Figure 47 shows the percentage of ethylene glycol that should be added based on the minimum outdoor temperature If the Liebert CRV is attached to an open water loop cooling tower city water etc a field supplied 16 20 mesh strainer is to be installed not supplied by Emerson within 10 ft 30m upstream of the unit to prevent debris from entering the unit Table 39 Glycol cooled drycooler matchups Outdoor Temperature Suggested CRV Model F C Fans Models Pump HP 19kW 95 35 1 DS0112 8 1 5 and 100 38 2 DSO174 8 1 5 ORY 105 41 2 DSO225 16 2 95 35 2 DSO197 16 2 35kW 100 38 3 DSO310 16 2 105 41 4 DSOA419 16 3 A 460V 3ph 60Hz or Y 208 230V 3ph 60Hz or B 575V 3ph 60Hz Matchups sized for 4096 propylene glycol 2 Suggested pump selections provide at least 30ft H2O head for piping losses Figure 47 Percentage of ethylene glycol mixed with water 4096 35 30 25 20 15 10 5
134. hall be designed to operate with water conductivity from 330 to 670 60Hz microS cm The system shall automatically fill and drain as well as maintain the required water level based on conductivity An air gap within the humidifier assembly shall prevent back flow of the humidifier supply water The humidifier canister shall be removable from the rear of the cabinet Condensate Pump Models CR020 CR035 CR040 The dual float condensate pump shall have a minimum capacity of 6 GPM 22 7 l min at 30 ft 9m head The pump shall be 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 Condensate Pump Models CR019 The dual float condensate pump shall have a minimum capacity of 20 GPH 75 7 l hr at 16 ft 4 9m head The pump shall be 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 Condensate Pump Models CR032 The dual float condensate pump shall have a minimum capacity of 45 GPH 171 Ihr at 13ft 4m head The pump shall be 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
135. he control wiring or conduit to the bottom edge of the rail with cable ties Route the shielded cable up toward the Liebert IntelliSlot bays and fasten to the side rails as needed PFO na q x S E IQ ge Low voltage field wiring if shielded cable 5 Bue Low voltage field wiring I Q5 twisted pair SY 8 c gt S Secure tie the field wiring shielded cable to the rail Route the shielded cable up toward the Liebert IntelliSlot ports and fasten to the side rails as needed DPN002814 Pg 3 Rev 4 21 Liebert CRV Air Cooled Systems 3 7 Dimensions Air Cooled Systems Figure 14 Cabinet and floor planning dimensions Air cooled 600mm 24in wide models Access required to service the Liebert CRV within the row Rear service area is S B or StA when B is not available P 25 916 35 9 16 650mm 903mm i i 13 3 4 A 350mm Nominal I 78 3 4 REAR 2000mm 25 9 16 B S 650mm FRONT 3 15 16 i 100mm Door 12 107 5 16 9 Fully 305mm 2725mm 9 Open 46 1 4 ace TOP VIEW O d For proper airflow distribution Align the front door 21 5 8 of neighboring racks 550mm S with the front corner of the Liebert CRV l 3 516
136. hen optional Liebert Liqui tect sensor is installed On Liebert Liqui tect activation normally open dry contact is closed across Terminals 58 and 59 for remote indication The Liebert Liqui tect sensor notifies the Liebert iCOM of indication through Terminals 60 and 61 1A 24VAC maximum load Use Class 1 field supplied wiring 15 Reheat and Humidifier Lockout Remote 24VAC required at Terminals 82 and 83 for lockout of reheat and humidifier 16 Additional Common Alarm On any alarm one additional normally open dry contact is closed across Terminals 94 and 95 for remote indication 1A 24VAC maximum load Use Class 1 field supplied wiring NOTE Refer to specification sheet for total unit full load amps wire size amps and maximum overcurrent protective device size Important Note for 460V Rated Liebert CRV Units CR A Source DPN001884 Rev 7 Pg 2 NOTICE Risk of improper input power Can cause equipment damage The electronically commutated motors included in the Liebert CRV are suitable for connection to an electrical service providing input power to the unit with 300V or less line to ground potential only Acceptable Unit Input Electrical Service for 460V 480V Nominal Units 480V wye with solidly grounded neutral and 277V line to ground Unacceptable Unit Input Electrical Service for 460v 480v Nominal Units Wye with high resistance or impedance ground Delta without ground or with floating ground
137. humidity dew point supply air temperature Unit View Status Overview Simple or Graphical Unit View summary displays shall include temperature and humidity values active functions and percent of operation and any alarms of the host unit Total Run Hours Menu shall display cumulative component operating hours for major components including compressors Econ O Coil free cooling fan motor humidifier and reheat Various Sensors Menu shall allow setup and display of optional custom sensors Display Language Customer shall be able to select the desired language at the time of order from the following choices English French Italian Spanish and German Service Contacts Menu shall allow display of local service contact name and phone number System View Status Overview System View shall display a summary of operation for the total number of operating units within a Unit to Unit U2U configuration Spare Parts List Menu shall include a list of critical spare parts their quantity and part numbers Unit Diary Menu shall include a free field area within the unit memory where unit history may be stored for reference Liebert CRV 144 Guide Specifications Row Based Environmental Control System The Service Menus Shall Be Setpoints Menu shall allow setpoints within the following ranges Temperature Setpoint 41 104 F 5 40 C Temperature Proportional Band 1 50 F Fan Temperature Setpoint
138. ic front monitor display and control keys for user inputs and shall be mounted in an ergonomic aesthetically pleasing housing The display and housing shall be viewable while the front panel is open or closed The controls shall be menu driven The display shall be organized into three main sections User Menus Service Menus and Advanced Menus with a secure login for each section The system shall display user menus for active alarms event log graphic data unit view status overview including the monitoring of room conditions operational status in of each function date and time total run hours various sensors display setup and service contacts password shall be required to make system changes within the service menus Service menus shall include setpoints standby settings lead lag timers sleep mode alarm setup sensor calibration maintenance wellness settings options setup system network setup auxiliary boards and diagnostics service mode A password shall be required to access the advanced menus which include the factory settings and password menus The User Menus Shall Be Active Alarms Unit memory shall hold the 200 most recent alarms with time and date stamp for each alarm Event Log Unit memory shall hold the 400 most recent events with ID number time and date stamp for each event Graphic Data View Two selectable graphic records shall be available from each of the following return air temperature return air
139. icated seismic compensation piping Anchor piping to building foundation Anchor to the floor stand when unit is on a floor stand SEE When unit piping is out the top anchor to the Liebert CRV Piping Through the Bottom Anchor to of the Liebert CRV building Anchor piping to the floor stand foundation when the unit is on a floor stand Flexible Loops All units must be attached to the piping system using flexible loops designed for seismic movement Flexible loops must be capable of movement in the X Y and Z planes and must completely isolate the equipment from the piping The loops must be suitable for the system s operating pressure and temperature refer to installation instructions This includes condensate drainage refrigerant lines and chilled water supply and return lines Follow manufacturer s installation instructions for proper seismic application of flexible loops Seismic Compensation Device DPNO002765 FLEXIBLE LOOP EXAMPLE Pg 7 Rev 1 129 Liebert CRV Seismic Application 600mm 24 Models Optional Unit Configuration Required Figure 86 Seismic certification tested connection detail cu NQ Baffle Panel Not Shown S gt Floor Stand Top of Leveling Foot Anchoring Notes
140. idth Cooling Type Capacity kW 60Hz Air 20 Water Glycol 24in F 208V 3ph 600 600mm Air i 460V 3ph Water Glycol 35 Chilled Water 40 j 208V 3ph 2n 13 460V 3ph Wye 208 230V 1ph 12in 208 230V 3ph 300 300mm Chilled Water 32 460V 3ph Wye 120V 1ph 208V 3ph Water Glycol 19 460V 3ph Wye Liebert CRV 6 Product Description Configurations Figure5 Liebert CRV front and rear views Front Rear 600mm 24 inch Air Cooled and CW Models Front Rear Front Rear 300mm 12 inch Air Cooled and Water Glycol Models Liebert CRV 300mm 12 inch CW Models 7 Liebert CRV Air Cooled Systems 3 0 AIR COOLED SYSTEMS 3 1 Table 2 Capacity and Physical Data Air Cooled Systems Performance data 600mm 24 inch units Standard 95 F 35 C Ambient Condenser CRO20RA CR035RA Liebert Fin and Liebert MC Liebert Fin and Liebert MC Return Air Temperature Tube Condenser Condenser Tube Condenser Condenser 105 F DB 71 F WB 40 6 C DB 21 6 C WB 17 RH Total KBTU H kW 87 2 25 5 90 7 26 6 142 8 41 8 141 3 41 4 Sensible KBTU H kW 87 2 25 5 90 7 26 6 142 8 41 8 141 3 41 4 100 F DB 69 5 F WB 37 8 C DB 20 8 C WB 20 RH Total KBTU H kW 83 5 24 5 86 8 25 4 136 9 40 1 135 5 39 7 Sensible KBTU H kW 83 5 24 5 86 8 25 4 136 9 40 1 135 5 39 7 95 F DB 67 9 F WB 35 C DB 19 9 C WB
141. ies is also capable of humidification The Liebert CRV is to be applied in hot aisle cold aisle configurations Air enters this unit from the hot aisle is filtered cooled and conditioned then expelled into the cold aisle The Liebert CRV is optimized for maximum cooling capacity in a minimal footprint The extremely energy efficient components of the system are managed by the Liebert iCOM control system The control monitors the environment in real time with sensors on the inlet of the racks the unit is cooling This information allows the unit to optimize its operations for both performance and energy efficiency All operations and sensor data can be reported remotely via a variety of communication protocols providing end users with a built in rack temperature monitoring system The supply air baffle on the 600 series allows the air leaving the cooling unit to be directed to the racks the Liebert CRV is conditioning maximizing its effectiveness reducing the chance for hot spots and improving the overall system efficiency The angle and spacing of the baffle vanes have been optimized through CFD modeling laboratory testing and real world installations All service and maintenance is performed through the front and rear of the unit including all component replacement All piping and electrical connections are made through the top or bottom of the unit Table 1 Unit configurations Nominal Cooling Input Power Series W
142. ification sheet for total unit full load amps wire size amps and maximum overcurrent protective device size Electrical Service cord connected Refer to serial tag for unit electrical service requirements Single Phase 120V 60Hz chilled water only 1 3 4 44mm diameter knockout provided in the top and bottom of the unit for the power cord to exit the unit The power cord is factory supplied with an L5 20 plug Factory Installed Locking Disconnect Switch Earth ground Terminal for field supplied earth grounding wire Low Voltage Connection Through the Bottom of the Unit Two knockouts each 7 8 22mm diameter not shown Low Voltage Connection Through the Top of the Unit Two knockouts each 7 8 22mm diameter Remote Unit Shutdown Replace existing jumper between Terminals 37 and 38 with field supplied normally closed switch having a minimum 75VA 24VAC rating Use field supplied Class 1 wiring Customer Alarm Inputs Terminals for field supplied normally closed contacts having a minimum 75VA 24VAC rating between Terminals 3 and 50 Terminals 2 and 51 Terminals 5 and 55 or Terminals 3 and 56 Use field supplied Class 1 wiring Terminals 5 and 55 not available when optional condensate pump is installed Common Alarm On any alarm normally open dry contact is closed across Terminals 75 and 76 for remote indication 1A 24VAC maximum load Use field supplied Class 1 wiring Heat Rejection Interlock On any call for com
143. in mm 31 1 2 x 17 1 2 x 4 800 x 445 x 100 Effective Surface Area ft m 16 4 1 52 Table 32 Physical data Water glycol cooled 300mm 12in wide models System Fan Data 19kW Model Total Airflow CFM m3 h 2250 3823 Total Fan Motor hp kW 0 65 0 48 Number of Fans 5 Evaporator Coil Face Area ft m 6 46 0 60 Rows 3 Face Velocity FPM m s 348 1 77 Condensate Pump Dual Float Type Capacity GPM l m 208V condensate pump rated for 0 77GPM at 13 ft 2 8 I m at 3 9m of total head pressure at 13 ft 3 4 I m at 3 9m of total head pressure 266V condensate pump rated for 0 81 GPM at 13 ft 3 1 I m at 3 9 m of total head pressure Filter Section MERV 1 Washable Type Quantity 2 Nominal Size in mm 35 5 x 10 6 x 0 4 902 x 269 x 10 Effective Surface Area ft m 2 3 0 21 63 Liebert CRV Liebert CRV Water Glycol Systems Table 33 Performance data Glycol cooled 300mm 12 inch units Glycol 40 Propylene Return Air Temperature 104 F 40 C EWT 115 F 46 1 C LWT 105 F DB 70 9 F WB 40 6 C DB 21 6 C WB 17 RH Total KBTU H kW 83 3 24 4 Sensible KBTU H kW 83 3 24 4 Flow Rate GPM l s 21 0 1 32 Pressure Drop ft water kPa 63 2 189 0 Heat Rejection KBTU H kW 107 5 31 5 1
144. ing 15 Liebert CRV Air Cooled Systems Figure7 Electrical field connections 300mm 12in DX models Refer to 3 6 Electrical Field Connections Standard Features 300mm See Figure 10 for low voltage 12in DX Models and 3 6 1 Electrical Field Connections Optional field wiring routing into the unit Features 300mm 12in DX Models for keys to numbered components 1 75 44 5mm See Figure 8 n Ko for views of disconnects S 1 13 28 6mm Knockout VIEW A A Factory provided conduit for routing field low voltage wiring to the unit s electric box B j Rear l View 2 16 11 10 13 reo B Ooooooooooo d lego RLAas assy N a N i Q OOOO OOOOOO N In VIEW B B o qF g g 8 Air and Water Upper Terminals z 900 Glycol units only pp DE sE Wa L Oo 3 Factory provided ao A Ay DEED S yY
145. ion to remotely shut down the unit Common Alarm Contact Provides 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 side panels separate the half inch 2 0 Ib 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 81 open area The rear door utilizes a Kn rr rack style handle and hinges 79 Liebert CRV Liebert CRV Water Glycol Systems 5 8 Service Access All service and maintenance is performed through the front or 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 inch filters rated MERV8 based on ASHRAE 52 2 2007 located within the cabinet and accessible from the rear of the unit A filter clog alarm is 1ncluded Locking Disconnect Switch A molded case circuit interrupter disrupts the flow of power to the unit The electric panel high voltage compartment can be accessed only with the switch in the Off position Conveniently located behind the Liebert 1COM display door for quick access 65 000 Amp Short Circuit Current R
146. irements The unit will automatically increase the fan speed above 10096 during the following conditions In the event that one of the two fans fail the functioning fan will increase to maximum speed to help compensate for the lost airflow The unit will automatically modulate its cooling capacity to avoid undesirable conditions if necessary coil freezing and high low refrigerant head pressure conditions If a different Liebert CRV experiences a problem that requires help from other nearby Liebert CRV s the healthy units will automatically increase their fan speed above 100 to provide additional airflow and or cooling requires Liebert iCOM unit to unit Teamwork communication A room can become extremely hot during a power failure when heat generating server equipment continues to run on backup power while air conditioners are without power The Liebert CRV will automatically utilize its extra airflow if a room is extremely hot after a power outage to cool the room back to setpoint as fast as possible Table 54 Nominal Airflow Liebert CRV Catalog Rating Maximum Fan Model 100 Fan Speed CFM Speed CFM Extra Airflow CRV 20kW DX 2455 2890 18 CRV 35kW DX 3260 4005 23 CRV 40kW CW 3325 3855 16 Figure 79 Nominal Airflow Normal Operation Extra Airflow Total Airflow CFM 50 60 70 80 90 100 110 120 130 Fan Speed Percentage eccccceccee Liebert CRV 20kW DX Liebert CRV 35kW DX 4 Liebert CRV
147. ith EC fans units with AC fans may be slightly less Net and packaged weights will increase with factory options legs taller than 18 coated coils and seismic options Field installed receivers also add to net weights Consult factory for additional information See Table 15 for weight added by longer legs Table 15 Condenser and option weight Additional Weight by Condenser Model Ib kg MCS028 MCM040 MCM080 MCLO055 MCL110 Leg Height 1 1 1 2 1 2 In mm Circuit Circuit Circuit Circuits Circuit Circuit Circuits 18 457 154 70 231 105 441 200 441 200 344 156 602 273 602 273 36 914 286 130 363 165 590 268 590 268 486 220 766 347 766 347 48 1219 318 144 395 179 622 282 622 282 518 235 798 362 798 362 60 1524 349 158 426 193 653 296 653 296 549 249 829 376 829 376 EIER 55 25 55 25 100 45 110 50 60 27 115 52 120 54 Coated Coil 4 2 5 2 10 5 10 5 8 4 16 7 16 7 Condenser Liebert Lee Temp Coated Coil Total Weight Source DPN003034 Rev 0 33 Liebert CRV Heat Rejection Liebert MC and Fin Tube Condensers Figure 20 Condenser planning dimensional data MCS028 ow pr 42 3 4 Height to Top 2 of Fan Guard zr Pu Height to Top A of Fan Guard K B C L p x 1121mm
148. l modes of operation Each fan shall have a dedicated motor fault monitoring circuitry and speed controller which provides a level of redundancy Both impellers shall be made of steel and balanced The EC plug fans shall be mounted on the rear door The entire fan assembly shall be capable of swinging out of the unit for accessibility The fans shall be located to blow air through the filters and tilted slab cooling coil to ensure even air distribution and maximum coil performance Model CR019 The unit shall be equipped with five 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 shall be variable and automatically regulated by the Liebert 1COM through all modes of operation Each fan shall have a dedicated motor fault monitoring circuitry and speed controller which provides a level of redundancy Both impellers shall be made of steel and balanced The EC plug fans shall be mounted in the front of the unit and draw air through the coil Model CR032 The unit shall be equipped with six 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 shall be variable and automatically regulated by the Liebert 1COM through all modes of operation Each fan shall have a dedicated motor fault monitoring circuitry and speed controller which provi
149. lectric Panel 1 3 8 34 9mm 1 3 4 44 5mm and 2 1 2 64mm diameter concentric knockout Low Voltage Connection Through the Bottom of the Electric Panel Two knockouts each 7 8 22mm diameter High Voltage Connection Through the Top of the Unit 1 3 8 34 9mm 1 3 4 44 5mm and 2 1 2 64mm diameter concentric knockout Low Voltage Connection Through the Top of the Unit Four knockouts each 7 8 22mm diameter Three Phase Electrical Service Connect to terminals on disconnect switch Three phase service not by Emerson Refer to 7 6 3 Important Note for 460V Rated Liebert CRV Units CR A Factory Installed Locking Disconnect Switch Earth Ground Terminal for field supplied earth grounding wire Remote Unit Shutdown Replace existing jumper between Terminals 37 and 38 with field supplied normally closed switch having a minimum 75VA 24VAC rating Use field supplied Class 1 wiring Customer Alarm Inputs Terminals for field supplied normally closed contacts having a minimum 75VA 24VAC rating between Terminals 3 and 50 Terminals 2 and 51 Terminals 5 and 55 or Terminals 3 and 56 Use field supplied Class 1 wiring Terminals 3 and 56 are used for humidifier alarm when a humidifier is installed The remaining terminals are available for customer alarm inputs such as smoke sensors and building fire alarms Common Alarm On any alarm normally open dry contact is closed across Terminals 75 and 76 for remote indication 1A 24VAC
150. lief of the Schrader valve shall indicate a leak free system 139 Liebert CRV Guide Specifications Row Based Environmental Control System 2 1 3 2 Modulating Valve 2 2 2 3 2 3 0 1 Two Way Valve A two way modulating valve shall control the chilled water flow through the cooling coil The Liebert 1iCOM shall manage the valve actuator movement to provide the desired amount of cooling for various entering water temperatures Cooling capacity shall be regulated by varying the chilled water flow The maximum differential pressure across the closed valve shall be 200 PSI 1379 kPa Maximum system pressure shall be 325PSI 2 241 kPa Three Way Valve A three way modulating valve shall control the chilled water flow passing through the cooling coil The Liebert 1COMQ control shall manage the valve actuator movement in order to provide the desired amount of cooling for various entering water temperatures Cooling capacity shall be regulated by varying the chilled water flow The maximum differential pressure across the closed valve shall be 200 PSI 1 379 kPa Maximum system pressure shall be 325PSI 2 241 kPa Fan Section Models CR020 CR035 CR040 The unit shall be 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 shall be variable and automatically regulated by the Liebert iCOM through al
151. ll be an insulated brazed plate type The primary side shall be piped to a chilled water source and the secondary side shall be connected to the refrigeration system A strainer must be installed upstream of the Liebert CRV on the primary building chilled water side Chilled Water System The water circuit shall be designed to distribute water into the entire coil face area Hydrophilic Coated Evaporator Coil Model CR040 The chilled water tilted slab cooling coil shall be 7 25 ft 0 674m face area six rows deep It shall be constructed of copper tubes and hydrophilic coated aluminum fins The hydrophilic coating shall significantly improve the speed of condensate drainage from the fins and shall provide superior water carryover resistance Two stainless steel condensate drain pans shall be provided The water circuit shall be threaded shut with a nitrogen holding charge Field relief of the Schrader valve shall indicate a leak free system Model CR032 The chilled water rotated slab cooling coil shall be three rows deep with the 32kW model having 7 8ft 0 72m of face area It shall be constructed of copper tubes and hydrophilic coated aluminum fins The hydrophilic coating shall significantly improve the speed of condensate drainage from the fins and shall provide superior water carryover resistance A stainless steel condensate drain pan shall be provided The water circuit shall be threaded shut with a nitrogen holding charge Field re
152. ll units at a lower operating level than to shut off extra units The units must be sufficiently sized to achieve the required cooling capacity if any of the other units within the same row fail Figure 74 shows an example of N 1 redundancy properly applied Figure 74 Example of an application with one row and N 1 redundancy left side unit failed Hot Return Air Hot Aisle 6 ft 1 8m Cold Supply Air Cold Aisle Maximum Distance to Barrier E 119 Liebert CRV Liebert CRV Intended Application Figure 75 Example of an application with two rows and N 1 redundancy unit at lower left failed Hot Return Air Hot Aisle Cold Supply Air MO 9 a gt an o O o a o ke 9 lt gt Hot Aisle Hot Return Air A 6 LIEBERT CRV APPLIED IN SMARTAISLE COLD AISLE CONTAINMENT Using the Liebert CRV with the SmartAisle is always recommended but not required It is an excellent solution when attempting to cool widely varying heat loads loads exceeding 10kW per rack and when seeking the highest efficiency systems For additional information about the SmartAisle see the Emerson Web site ww w emerson com Figure 76 Liebert CRV placement with SmartAisle cold aisle containment Liebert CRV s in center of two rows Hot Aisle Hot Return Air A Containment Cold Supply Air contained in SmartAisle Hot Aisle Hot Return Air Liebert CRV 120 Liebert CRV Intended Application Figure
153. ls on disconnect switch Three phase service not by Emerson Refer to 7 6 3 Important Note for 460V Rated Liebert CRV Units CR A Factory Installed Locking Disconnect Switch Earth Ground Terminal for field supplied earth grounding wire Remote Unit Shutdown Replace existing jumper between Terminals 37 and 38 with field supplied normally closed switch having a minimum 75VA 24VAC rating Use field supplied Class 1 wiring Customer Alarm Inputs Terminals for field supplied normally closed contacts having a minimum 75VA 24VAC rating between Terminals 3 and 50 Terminals 2 and 51 Terminals 5 and 55 or Terminals 3 and 56 Use field supplied Class 1 wiring Terminal 3 and 56 are used for humidifier alarm when a humidifier is installed The remaining terminals are available for customer alarm inputs such as smoke sensors and building fire alarms Common Alarm On any alarm normally open dry contact is closed across Terminals 75 and 76 for remote indication 1A 24VAC maximum load Use field supplied Class 1 wiring Heat Rejection Interlock On any call for compressor operation normally open dry contact is closed across Terminals 70 and 71 to heat rejection equipment 1A 24VAC maximum load Use field supplied Class 1 wiring CANbus Connector Terminal block with Terminals 49 1 CAN H and 49 3 CAN L SH shield connection The terminals are used to connect the CANbus communication cable provided by others from the indoor unit to the Li
154. ly open n o contacts for remote indication of unit alarms shall be provided 2 16 5 Liebert IntelliSlot Unity DP Card The Liebert IntelliSlot Unity Card IS UNITY DP shall provide ground fault isolated RS 485 Modbus BACnet IP and Modbus IP network connectivity to Building Management Systems for unit monitoring and management Also it shall provide ground fault isolated 10 100 baseT Ethernet connectivity for unit monitoring and management The supported management interfaces include SNMP for Network Management Systems HTTP for Web page viewing SMTP for e mail and SMS for mobile messaging The card shall support IP and 485 protocols simultaneously 2 16 6 Liebert Nform Optional Advanced Monitoring The Critical Infrastructure Management software shall centrally monitor and manage distributed equipment using the customer s existing network infrastructure The system shall provide the Critical Infrastructure Management and Monitoring for air conditioning CRAC systems uninterruptible power supply UPS systems power distribution units PDU s static transfer switches STS direct current power systems DC power distribution strips PDU s Alber battery monitoring rack enclosure monitoring leak detection systems and other critical infrastructure systems as specified The system shall have an architecture that allows up to 10 000 managed devices including Liebert and third party devices in a single server installation
155. lymeric 4 5 8 5 lb ft density compressor sound jacket that encloses the compressor Additional half inch closed cell polymeric 3 8 lb ft density sound deadening material shall be affixed to the underside of the Superior Service Access Panel located above the compressor and attached to the inner side of the compressor compartment panels that face the hot and cold aisles All sound deadening material shall be non shedding and located outside the airstream 2 1 2 Water Glycol Cooled Refrigeration System 2 1 2 1 Refrigeration System The single refrigeration circuit shall include a liquid line filter drier an adjustable externally equalized expansion valve and a liquid line solenoid valve The water glycol circuit shall be equipped with an insulated brazed plate heat exchanger having a total pressure drop of ft kPa of water at a flow rate of GPM l s with F C entering water glycol temperature The water piping shall be threaded closed with a nitrogen holding charge Field relief of the Schrader valve shall indicate a leak free system 2 1 2 2 Hydrophilic Coated Evaporator Coil Models CR020 CR035 The direct expansion tilted slab cooling coil shall have 7 25 ft 0 674 m face area four or five rows deep It shall be constructed of copper tubes and hydrophilic coated aluminum fins The hydrophilic coating shall significantly improve the speed of condensate drainage from the fins and shall provide superior water carryover resistance
156. m TOP CONNECTIONS Piping connection locations must be ordered top or bottom Electrical connections available top or bottom of unit 39 1 16 992mm BOTTOM CONNECTIONS Possible with Raised Floor FRONT OF UNIT 2 1 4 2 5 8 67mm 3 76mm 3 5 16 84mm 3 11 16 94mm GD CPB LVB1 Rev 2 15 9 16 395mm 39mm 1 9 16 Cutout for CSB CRB and GD CPB 57mm CSB CRB DETAILA DPN003040 Top Connections CST Water Glycol Water Supply CR019 60Hz 1 1 4 FPT Bottom Connections Water Glycol Water Supply CR019 60Hz 1 1 4 FPT CRT CPT Water Glycol Water Return Condensate Pump 1 1 4 FPT Knockout 1 3 8 35mm Water Glycol Water Return Gravity Coil Pan Drain High Voltage Top 2i Connection Combination Knockout 1 1 8 and 1 3 4 29mm and 44mm Condensate Pump High Voltage Bottom 1 1 4 FPT 1 Knockout Hole Diameter 1 3 4 44mm Combination Knockout Shielded Cable Diameter 7 8 22mm Connection Twisted Pair Low Voltage Top HVB Entrance feed through the 1 1 8 and 1 3 4 LVT1 Connection Pat see n base of the unit 29mm and 44mm Twisted Pair Low Voltage Top LVT2 Connection 2 Knockout Holes LVB1 Low Voltage Bottom 2 Knockout Holes Diameter 7 8 22mm TDM Tie Down Mounting Top 4 Holes Diameter 1 8 3mm LVB2 Low Voltage Bottom Connectio
157. m 12in Water Glycol Cooled Models o Batt Sd ue Tec on Wa Eier un ode uou asin degere eod exceed en A Ex de thew Rn 70 Dimensions Water Glycol Systems 0 ec eee es 71 Piping W ater Glycol Systems Ase Oe 25 ahead nae RoW ede XO AV SAIS ea 73 Sound Data Water Glycol Systems eee es TT Standard Features 600mm 24in Water Glycol Systems nusnnnaa nannaa TT Optional Features 600mm 24in Water Glycol Systems llle 79 Standard Features 300mm 12in Water Glycol Systems 0 0 00 cee eee eee 80 Optional Features 300mm 12in Water Glycol Systems 0 0 00 eee eee eee 81 HEAT REJECTION DRYCOOLERS 00 cece eee ee eee eee eee eee teens 82 Liebert Drycoolers for Water Glycol Cooled Liebert CRV s 0 00 e eee eee 82 Drycooler General Data fy 20 soa piren ioed ro EE Ihe dla Re 29d dr ie dh qa 83 Drycooler Pump Packages and Expansion Tank Options 0000 e eee 84 Liebert Glycol Cooled Direct Drive Drycoolers 0 000 c ce eee 86 6 4 1 Standard Features ietin ono etg te ree ton tm E ER Ro CARA ESTEE e s 86 CHILLED WATER SYSTEMS 600mM 24IN AND 300MM 12IN CABINETS 89 Performance Data 600mm 24in Units eee rs 89 Performance Data 300mm 12in Units eee es 90 Physical Data 600mm 24in Units 0 een teenies 91 Physical Data 300mm 12in Units een eens 92 Operating Limits for Chilled Water Units
158. m a complete refrigerant to air heat exchanger coil Copper stub pipes shall be electric resistance welded to aluminum coils and joints protected with polyolefin to seal joints from corrosive environmental elements Coil assemblies shall be factory leak tested at a minimum of 300 psig 2068kPag Hot gas and liquid lines shall be copper and shall be brazed using nitrogen gas flow to the stub pipes with spun closed ends for customer piping connections Complete coil piping assembly shall be then filled and sealed with an inert gas holding charge for shipment 2 17 1 2 2 Aluminum Microchannel Coil with E Coat Aluminum microchannel coil with E coat shall provide a flexible epoxy coating to all coil surface areas without material bridging between fins E coat shall increase coil corrosion protection and shall reduce heat rejection capacity degradation to less than 10 after a severe 2000 hour 5 neutral salt spray test ref ASTM B117 The coating process shall ensure complete coil encapsulation and the color shall be black 2 17 1 3 Fan Motor Blade Assembly The fan motor blade assembly shall have an external rotor motor fan blades and fan finger guard Fan blades shall be constructed of cast aluminum or glass reinforced polymeric material Fan guards shall be heavy gauge close meshed steel wire coated with a black corrosion resistant finish Fan terminal blocks shall be located in an IP54 enclosure located on the top of the fan motor Fan assembli
159. n N O contacts for remote indication of unit alarms Liebert Liqui tect Sensor Solid state water sensor hermetically sealed to keep out dust and dirt The alarm system is activated when the sensor detects moisture Liebert CRV 112 Chilled Water Systems 600mm 24in and 300mm 12in Cabinets T 14 Standard Features 300mm 12in Chilled Water Systems Source DPN002974 Rev 3 Pg 3 Chilled Water Cooling Coil The 300 series evaporator coil is three rows deep with the 32kW model having 7 8ft 0 72m of face area It is constructed of copper tubes and hydrophilic coated aluminum fins The hydrophilic coating provides superior water carryover resistance stainless steel condensate drain pan is provided Chilled Water System The water circuit includes a three way modulating ball valve The Liebert 1COM positions the valve in response to room conditions Cooling capacity will be controlled by bypassing chilled water around the coil The maximum differential pressure across the closed valve is 200 PSI 1379 kPa Maximum system pressure is 325 PSI 2241 kPa Fans The unit is equipped with six plug fans direct driven centrifugal fans with backward curved blades and electronically commutated motors commonly referred to as EC plug fans The fan speed is variable and automatically regulated by the Liebert iCOM through all modes of operation Each fan has a dedicated motor and integrated speed controller which provides
160. n Shielded Cable 2 Knockout Holes Diameter 7 8 22mm Source DPN003040 Rev 2 Liebert CRV 74 Liebert CRV Water Glycol Systems Figure 45 General arrangement diagram Water glycol 600mm 24 in models Distributor Vibration Evaporator Coil Absorber Sensing i Bulb CRO020 Digital Rotalock Valve Solenoid Valve CRO035 Digital x icd Solenoid Valve ressure Low Pressure M Transducer External Equalizer Transducer Digital High Pressure Switch Scroll Rotalock Valve Compressor Expansion Vibration valve Absorber Differential Check Valve Check Valve Water Glycol Return 3 Way Valve 145psi l Solenoid Top Connection Configuration Filter Valve 5 Drier AB Relief Water Valve Cooled Brazed 2 Way Valve Water Glycol Return Plate STERN Bottom Connection Condenser Receiver Water Glycol Supply Top Connection AB A Valve Disk Fitting M E Water Glycol Supply Bottom Connection Factory Refrigerant Piping V Service Schrader Access Connection No Valve Core NOTES Y Service Schrader Access Connection With Valve Core 1 Schematic representation shown Do not use for specific connection locations 2 Install a 35 mesh strainer in an easily
161. n and provided with leveling feet The perforated inlet and outlet panels have 81 open area The rear door utilizes a Kn rr rack style handle and hinges Service Access All service and maintenance is performed through the front or 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 four inch filters rated MERV8 based on ASHRAE 52 2 2007 located within the cabinet and accessible from the rear of the unit A filter clog alarm 1s included Locking Disconnect Switch A molded case circuit interrupter disrupts the flow of power to the unit The electric panel high voltage compartment can be accessed only with the switch in the Off position The switch is located behind the Liebert iCOM display door for quick access 65 000A Short Circuit Current Rating SCCR The electrical panel provides a 65k amp SCCR 29 Liebert CRV Air Cooled Systems 3 11 Optional Features 600mm 24in Air Cooled Systems Source DPN001907 Rev 3 Dual Float Condensate Pump lIt has a capacity of 6 GPM 22 7 l m 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 an
162. n the total external cable connection between the indoor unit and outdoor unit s is less than 450 ft 137m A CANbus isolator is required for total external cable connections greater than 450 ft 137m but less than 800 ft 243m Cable must meet the following specifications Conductors 22 18AWG stranded tinned copper Twisted pair minimum four twists per foot 305mm Braided shield or foil shield with drain wire Low Capacitance 15pF FT or less UL approved temperature rated to 167 F 75 C UL approved voltage rated to 300V UV resistant and moisture resistant if not run in conduit Plenum rated NEC type CMP if required by national or local codes Examples Belden 89207 Plenum Rated or Alpha Wire 6454 Category 5 5E or higher 69 Liebert CRV Liebert CRV Water Glycol Systems 5 2 4 Electrical Connections Optional Features 300mm 12in Water Glycol Units Source DPN002810 Rev 5 Pg 1 14 Condensate Pump High Water Alarm available when optional pump is installed On pump high water indication normally open dry contact is closed across Terminals 88 and 89 for remote indication 1A 24VAC maximum load Use field supplied Class 1 wiring 15 Liebert Liqui tect Shutdown and Dry Contact available when optional Liebert Liqui tect sensor is installed On Liebert Liqui tect activation normally open dry contact is closed across Terminals 58 and 59 for remote indication The Liebert Liqui tect sensor no
163. nchor location 2 1 2 64mm Min Edge Distance M I i Min Embedment Min Hole Depth Min Pad Depth Li Specified by Engineer of Record Anchor bolt sized per HILTI KWIK BOLT TZ carbon and stainless in concrete ICC ESR 1917 Alternates are subject to review by Emerson or engineer of record ANCHOR DETAIL ISO VIEW WITH FLOOR STAND 46 3 8 179mm 6 1 2 2 112 I 563 64mm 165mm Hole to Hole 14 29mm TYP 3 4 ao 8 places 19mm 38mm o e Em gt e O gu 4 r REAR FRONT OF OF 21 3 4 UNIT UNIT 551mm o Rm v i Io L DPNO002765 TOP VIEW OF LIEBERT CRV 600mm 24 Ugo e d 125 Liebert CRV Seismic Application 600mm 24 Models Optional Unit Configuration Required Figure 82 Seismic floor anchorage dimensions p 2 1 2 64mm Min Edge Distance ANSI B18 22 1 Type A Series W Plain Washer required at each anchor location o o o I I FT Min 3 Embedment Min Hole
164. nd 300mm 12in Models Figure 60 Cabinet and floor planning dimensions Chilled water 600mm 24in wide models Access required to service the Liebert CRV within the row Rear service area is S B or S A when B is not available KR 25 9 16 35 9 16 gt 650mm 903mm i 13 3 4 A 350mm Nominal 78 3 4 REAR 2000mm 25 9 16 B 650mm FRONT 3 15 16 i 100mm Door 42 107 5 16 Fully 305mm 2725mm Open 46 1 4 dnm TOP VIEW For proper airflow r distribution Align the front door 21 5 8 of neighboring racks 550mm S with the front corner of the Liebert CRV l 3 5 16 23 5 8 J 100mm 600mm 27 9 16 700mm Air Filters REAR VIEW WEIGHT Ib kg 728 330 P Front or Rear a DPNO001791 equire Rev 3 Liebert CRV 104 Chilled Water Systems 600mm 24in and 300mm 12in Cabinets Figure 61 Dimensions and floor planning data CR032 chilled water models 300mm 12in wide Access Required to Service the Unit Between Existing Racks Within the Row a A 36 914 4mm REAR Liftoff door TOP VIEW FRONT with Display 36 914 4mm 12 300mm 24 600mm WEIGHT Ib kg 190 418 DPN002807 Rev 4 FRONT 79 2000mm Top of Unit to Floor
165. nd overhead cooling systems The unit is compatible with all forms of aisle containment but the control algorithms have been optimized for cold aisle containment with SmartAisle from Emerson Network Power Figure 66 Example of high density installation with alternating cold and hot aisles A 1 A 2 Liebert CRV Liebert CRV E Cold Aisle SA Liebert CRV Hot Aisle x efe B YES Y UNIT TO UNIT U2U COORDINATED COOLING OPERATION The Liebert 1COM controls permit networking the Liebert CRV s and coordinating the units operation to improve cooling and efficiency In U2U mode the networked Liebert CRV s share data from the standard temperature sensors to increase or reduce cooling For further information see 8 10 Standard Features 600mm 24in Air Cooled Systems Figure 43 Piping connections 600mm 24in wide water glycol cooled models 7 12 Standard Features 600mm 24in Chilled Water Systems 7 14 Standard Features 300mm 12in Chilled Water Systems SMARTAISLE CONFIGURATION The SmartAisle from Emerson Network Power is an intelligent row based system that integrates data center racks power row cooling aisle containment monitoring and control technologies into a complete data center layout 115 Liebert CRV Liebert CRV Intended Application A 2 1 Typical SmartAisle Components Each SmartAisle from Emerson is custom designed offering the most favorable layout fo
166. nd vented enclosure The pump shall be rated for GPM lm at ___ ft __ kPa of head and operate on volt 3 phase Hz 2 18 2 3 1 Dual Pump Package 3 0 3 1 3 1 1 3 1 2 3 1 3 3 1 4 The dual pump package shall include pumps enclosure and field mounted flow switch The standby pump shall automatically start up on failure of the lead pump by drycooler pump controls or by a separate factory wired control box and shall include a lead lag switch for the pumps Each pump shall be rated for GPM l s at ft __ kPa of head EXECUTION Installation of Thermal Management Units General Install cooling units in accordance with manufacturer s installation instructions Install units plumb and level firmly anchored in locations indicated and maintain manufacturer s recommended clearances Electrical Wiring Install and connect electrical devices furnished by manufacturer but not specified to be factory mounted Furnish copy of manufacturer s electrical connection diagram submittal to electrical contractor Piping Connections Install and connect devices furnished by manufacturer but not specified to be factory mounted Furnish copy of manufacturer s piping connection diagram submittal to piping contractor Refrigerant Charging Charge completed cooling system in accordance with manufacturer s refrigerant charging instructions 153 Liebert CRV Guide Specifications Row Based Environmental Control Sys
167. ndenser Connections OD In Liebert Lee Temp Connections Liquid Line to Receiver Out Hot Gas Tee Liebert Lee Temp Rotalock Model Hot Gas Liquid IDS In Valve ODS In IDS In MCS028 7 8 5 8 7 8 5 8 5 8 MCM040 7 8 5 8 7 8 5 8 5 8 MCMO080 1 1 8 7 8 1 1 8 7 8 1 1 8 MCLO055 1 1 8 7 8 1 1 8 7 8 7 8 MCL110 1 3 8 1 1 8 1 3 8 1 1 8 1 1 8 Source DPN002167 Rev 5 49 Liebert CRV Heat Rejection Liebert MC and Fin Tube Condensers Table 20 Recommended refrigerant line sizes for Liebert MC condensers with R 41 0A with and without Liebert Lee Temp Cu OD Liebert CRV Total Equivalent Hot Gas Line Liquid Line Model Length ft m in m in m 50 15 2 3 4 19 1 5 8 15 9 CRO19RA 100 30 5 3 4 19 1 5 8 15 9 CRO20RA 150 45 7 3 4 19 1 5 8 15 9 300 91 4 7 8 22 2 3 4 19 1 50 15 2 7 8 22 2 3 4 19 1 100 30 5 7 8 22 2 3 4 19 1 CRO35RA 150 45 7 7 8 22 2 3 4 19 1 300 91 4 1 1 8 28 6 7 8 22 2 1 Consult factory for proper line sizing for runs longer than 300 ft 91 4m equivalent length 2 Must downsize vertical riser one trade size 1 1 8 to 7 8 or 7 8 to 3 4 4 7 Liebert Fin Tube Condenser Selections 600mm 24in Units 4 7 4 Variable Frequency Drive Fin Tube Condensers with without Liebert Lee Temp The fin tube condensers are designed for operation in outdoor ambient temperatures ranging f
168. nections Standard Features 600mm 24in Wide Models and 7 6 2 Electrical Connections Optional Features 600mm 24in Wide Models for keys to numbered components 2 1 2 64mm Field High Voltage Knockout 1 3 32 28mm Field Low Voltage Knockout 1 3 4 44 5mm Field Low Voltage CANbus Knockout Q Seo HPP OPE OE c5 SOS MD MD c CO CH aae ooo oooj ooo ooojooojooo W OVERLOAD PROTECTORS o CONTACTORS UNIT SWITCH DISCONNECT i V Factory Terminals juga i Typically 2 DPNO001884 Pg 3 Rev 7 Liebert CRV 94 Chilled Water Systems 600mm 24in and 300mm 12in Cabinets 7 6 1 Electrical Connections Standard Features 600mm 24in Wide Models Source DPN001884 Rev 7 Pg 1 1 2 10 11 12 High Voltage Connection Through the Bottom of the Electric Panel 1 3 8 34 9mm 1 3 4 44 5mm and 2 1 2 64mm diameter concentric knockout Low Voltage Connection Through the Bottom of the Electric Panel Two knockouts each 7 8 22mm diameter High Voltage Connection Through the Top of the Unit 1 3 8 84 9mm 1 3 4 44 5mm and 2 1 2 64mm diameter concentric knockout Low Voltage Connection Through the Top of the Unit Four knockouts each 7 8 22mm diameter Three Phase Electrical Service Connect to termina
169. nel and be capable of disrupting the flow of power to the unit The electric panel compartment shall be accessible only with the switch in the Off position It shall be located behind the rear door for quick access Short Circuit Current Rating SCCR Models CR019 CR020 CR035 CR040 The electrical panel shall provide at least 65 000A SCCR Model CR032 120V 1 60Hz The electrical panel shall provide at least 5000A SCCR Model CR032 208 230 1 60Hz The electrical panel shall provide at least 65 000A SCCR Model CR032 208 230 3 60Hz The electrical panel shall provide at least 65 000A SCCR Model CR032 460 3 60Hz The electrical panel shall provide at least 65 000A SCCR Filtration Models CR020 CR035 CR040 MERV 8 The filter channel shall be an integral part of the system located within the cabinet and serviceable from the rear The two filters shall be deep pleated 4 inches thick with an ASHRAE 52 2 MERV8 rating 30 ASHRAE 52 1 A filter clog alarm shall be included Mesh type cleanable filters shall be unacceptable MERV 11 The filter channel shall be an integral part of the system located within the cabinet and serviceable from the rear The two filters shall be deep pleated 4 inches thick with an ASHRAE 52 2 MERV11 rating 60 65 ASHRAE 52 1 A filter clog alarm shall be included Mesh type cleanable filters shall be unacceptable Liebert CRV 142 Guide Specifications Row Based Environmental Control System
170. ntative Liebert CRV 116 Liebert CRV Intended Application A 3 1 Row Placement The Liebert CRV can be placed either at the end of a row or in between server racks Locating a Liebert CRV at the end of a row helps to isolate the end of the cold aisle from the surrounding space protecting 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 s it is recommended that units be installed at the end of rows with their baffles set to direct cold supply air toward the server equipment Figure 68 Depending on row length heat density and airflow requirements additional cooling units can be installed throughout the row with their baffles set to direct supply air left and right as it leaves the unit as seen in Figure 69 Cooling unit location within a row becomes less critical when deployed in SmartAisle containment but it is recommended that Liebert CRV s be evenly spaced in each row Using room barriers such as walls shown in Figure 70 and Figure 71 can be very effective in simulating aisle 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 Figure 68 One Liebert CRV recommended placement Hot Return Air Hot Aisle 6 ft
171. ol Fin Tube Condensers Source DPN001624 Pg 1 Rev 8 Fusible Plug Service Kit Provides compliance for local codes requiring fusible plug type pressure relief devices Shipped loose for field installation on each liquid line Liebert CRV 58 Liebert CRV Water Glycol Systems 5 0 LiEBERT CRV WATER GLYCOL SYSTEMS 5 1 CAPACITY AND PHYSICAL DATA 600MM 24IN MODELS Table 27 Performance data Water cooled 600mm 24in Model CRO20RW Return Air Temperature 83 F 28 33 C EWT 95 F 35 C LWT 105 F DB 71 F WB 40 6 C DB 21 6 C WB 17 RH 85 F 29 4 C EWT 110 F 43 3 C Cond Temp Total KBTU H kW 28 0 95 7 27 6 94 1 Sensible KBTU H kW 28 0 95 7 27 6 94 1 Flow Rate GPM l s 19 0 1 2 14 2 0 9 Pressure Drop ft water kPa 45 9 137 1 26 3 78 5 Heat Rejection KBTU H kW 113 6 33 3 113 33 1 100 F DB 69 5 F WB 37 8 C DB 20 8 C WB 20 RH Total KBTU H kW 91 5 26 8 90 0 26 4 Sensible KBTU H kW 91 5 26 8 90 0 26 4 Flow Rate GPM l s 18 2 1 15 13 6 0 85 Pressure Drop ft water kPa 42 5 126 9 24 71 9 Heat Rejection KBTU H kW 109 3 26 8 108 8 31 9 95 F DB 67 9 F WB 35 C DB 19 9 C WB 23 RH Total KBTU H kW 87 6 25 7 86 0 25 2 Sensible KBTU H kW 87 2 25 6 85 9 25 2 Flow Rate GPM l s 17 6 1 11 1
172. or loop must be suitable for the operation pressure and temperature of the system Furnish copy of manufacturer s piping connection diagram submittal to piping contractor Install condenser in accordance with manufacturer s installation instructions provided with seismic option Firmly anchor maintaining manufacturer s recommended clearances Mounting requirement details such as anchor brand type embedment depth edge spacing anchor to anchor spacing concrete strength special inspection and attachment to non building structures must be outlined and approved by the Engineer of Record for the projection or building Wiring and piping connections must permit movement in three dimensions and isolate the unit from field connections Electrical conduit shall be flexible having at least one bend between the rigid connection at the unit cabinet and the connection to rigid conduit or foundation The piping flexible connection or loop must be suitable for the operation pressure and temperature of the system Furnish copy of manufacturer s piping connection diagram submittal to piping contractor Liebert CRV 154 While every precaution has been taken to ensure the accuracy and completeness of this literature Liebert Corporation assumes no responsibility and disclaims all liability for damages resulting from use of this information or for any errors or omissions O 2014 Liebert Corporation All rights reserved throughout the world Specifications s
173. or network shall consists of one CAN wire leaving the cooling unit and connecting to a 2T sensor Each remaining 2T sensor 1s connected to the previous sensor Additional Rack Temperature Sensor s additional 2T rack temperature sensors shall be provided 2 13 2 Additional CAN Cables for Rack Sensors 2 14 2 15 additional feet long CAN cables shall be provided Liebert iCOM Wall Mount Large Graphic Display Liebert vNSA Panel The Liebert 1COM Large Graphic Display Kit shall include an ergonomic aesthetically pleasing housing a 320x240 dot matrix graphical display and a 120V power supply The wall mount large graphic display shall be used to allow remote location of a System View display and all features of the Large Graphic User Service and Advanced menus for use with Liebert iCOM controlled products connected for Unit to Unit U2U communication Liebert VNSA Optional The Liebert vNSA network switch is designed for connecting multiple Ethernet ready devices The unit shall have one or two eight port switches providing a total of eight or 16 Ethernet ports The Liebert vNSA shall have the capability to accept 100 240VAC single phase input power for proper operation A universal power supply 12V 1 5A shall be installed inside a steel enclosure secured with a key lock with a hard wired connection for 120V or 230V operation A Liebert iCOM display shall be mounted on the front Liebert iCOM shall permit interconnected
174. ore near the Liebert CRV NOTES Inverted trap discharge and UNS i itech Benet ifi T liquid lines to extend above the DPNO001984 Schematic representation shown Do not use for specific connection locations base of the coil a minimum of 2 One or more additional pressure relief valves are required downstream of any 7 1 2 190mm Rev 5 and all field installed isolation Do not isolate any refrigerant circuits from overpressurization protection 55 Liebert CRV Heat Rejection Liebert MC and Fin Tube Condensers Figure 37 Piping R 410A VFD control single circuit fin tube condensers Detail A A Entering a Gas Line Field Supplied Traps field supplied to extend above base of coil by a minimum of 7 1 2 191mm Bod ui Horizontal Leaving Liquid Line Field Supplied P d Fasten liquid and hot gas lines to Optional fusible plug service kit to Detail A A leg using flat surface clamps be brazed into the liquid line s in with isolators field supplied either the vertical or horizontal Support field piping separately position where required to avoid coil damage and loss of Vertical position is recommended charge horizontal position is optional DPN001624 Pg 3 Rev 8 Table 24 Piping and refrigerant sizes for Liebert air cooled VFD control fin tube single circuit condensers with R 410A Condenser Piping Connection Sizes Cu O D Returning Liquid
175. orming its primary function after a seismic event within the limits of certification SEISMIC CERTIFICATION CRITERIA The Liebert CRV 600mm 24 model has two levels of certification for units attached to the floor without spring isolators Both levels require unit mounting bracket as shown in Detail Ain Figures 86 and 87 The CRV600 is approved for seismic applications when properly installed and used as intended and located in United States where the design 5 percent damped spectral response acceleration at short periods adjusted for site class effects SDSpg is as shown in Tables 55 and 56 Below grade at grade or above grade installations are permitted and included in this approval This certification is good for an I of 1 0 or 1 5 The first level is SDS 0 8 which is the standard unit rigid mount only no floor stand Table 55 Shake table test parameters first level Text Criteria ICC ES AC 156 Sps 9 zih Ari x Aric AFLX_VERT ARIG_VERT Rigid Mount 0 8 1 0 1 28 0 96 0 54 0 22 Equipment is qualified for Spg and z h values shown Qualification may be valid for higher Spg where z h lt 1 0 The second level for Spg 2 00 2 50 requires factory installed bracing rigid or floor stand mount Table 56 Shake table test parameters second level Text Criteria ICC ES AC 156 Sps 9 zih Arix Aric AFLX_VERT RIG VERT Rigid Base Mount 2 00 1 0 3 20 2 40 or Floor Stand 2 50 0 1 68 0
176. ousing The drycooler housing is constructed of bright aluminum sheet and divided into individual fan sections by full width baffles Structural support members including coil support frame motor and drive support are galvanized steel for strength and corrosion resistance Aluminum legs are provided with rigging holes for hoisting the unit into position Fluid Temperature Control System Fan Cycling Complete with aquastats and electrical control circuit factory wired in the integral control panel Aquastats cycle fans to maintain fluid temperature as outdoor air temperature changes Head pressure is controlled by the fluid regulating valve 1n the Liebert indoor unit Unit Disconnect Switch A locking disconnect factory installed and wired in enclosed control section standard with DSO DDO drycoolers Pump Controls Factory wired in the integral control panel Single power feed to drycooler supplies power to both drycooler and pumps electric service connection Single pump DSO and dual pump DDO control options are available DDO Drycooler keeps one pump in active mode and the other in standby mode Switchover between pumps activated by factory supplied pump selector switch or by contact closure on field installed flow switch Liebert CRV 86 Heat Rejection Drycoolers Figure 51 Cabinet and anchor dimensions for direct drive drycoolers pc 9 16 ue Eyebolts For Lifting Condenser Provided on Four Fan Models
177. ows Vista or Windows Server 2008 operating system Pentium 3 0GHz single processor or better 1 8GHz dual processor or better recommended 4 GB of RAM memory or better 40 GB hard drive SCSI recommended 10 100 BaseT network port or better Monitor keyboard and mouse port as required for setup Standard USB ports CD or DVD ROM drive for software installation CD DVD RW suggested for installation and backup Critical Infrastructure server may be Virtual Environment compatible Critical Infrastructure Workstation PCs meeting the following minimum requirements System should meet the minimum requirements for Microsoft Windows 7 XP 2003 Vista or Server 2008 operating systems Microsoft Internet Explorer v6 0 or higher 1 GB RAM Hard disk with 10GB free space The owner shall supply the following to facilitate system implementation P addresses and subnet masks and other information as required to configure network devices person as the nominated system owner for administrator purposes Secure location for hardware and server 149 Liebert CRV Guide Specifications Row Based Environmental Control System Critical Infrastructure System Vendor Responsibilities Provide hardware and software as listed Critical Infrastructure software and licenses for server and workstation installations Software Assurance for the first year at no additional cost 7x 24 system application and service support through
178. p Controlled Fan Cycling 208 230 3 5 4 4 15 7 0 7 9 15 10 5 11 4 15 460 3 1 7 2 1 15 3 4 3 8 15 5 1 5 5 15 575 1 4 1 8 15 2 8 3 2 15 4 2 4 6 15 FLA Full Load Amps WSA Wire Size Amps OPD Maximum Overcurrent Protection Device Figure 34 Electrical field connections R410A VFD fin tube condensers Factory wired to 24V control circuit Heat Rjection Connection 70 71 Field supplied Class 1 wiring to interlock condenser 24V controls to Liebert indoor unit 70 71 Reference the condenser and indoor unit electrical schematics for termination 7 8 in 22 2mm diameter hole provided in bottom of electric box Special Alarm Connections Field supplied 24V Class 1 wiring to remote alarm circuits Surge Suppression Device SPD normally open alarm contact connections 11 12 Variable Frequency Drive VFD normally closed alarm contact connections 13 14 Reference the indoor unit electric diagram RAD1 4 for termination Factory wired to components on Y aue ie Earth ground connection 60Hz Connection terminal for field supplied WW P Factory installed fuse block on 60Hz units Electric Service Connection terminals with factory supplied disconnect Factory installed disconnect Switch Electric Service Entrance A 7 8 in 22 2mm diameter hole in a 1 1 18 in 28 6mm knockout provided in bottom of electric box
179. pa BE conduit for routing oooocooocooo um field low voltage N wiring to the unit s BB3Ss8SSESOOOOOO0 SN electric box See note below Y Rotate 1 4 turn clockwise to allow access to electrical All internal low voltage field wiring 56 209 88 656 SIOOOOOOO components must be secured with cable ties away 000000000 DPN002810 from moving parts high temperature Pa 3 Rev 5 surfaces and high voltage wiring VIEW B B g 9 Lower Terminals SOME COMPONENTS NOT SHOWN General wire routing paths shown Wiring must be run in conduit and must be inside the Liebert CRV frame and panels Attach conduit to the inside of the rails with cable ties Control wiring must be run in separate conduit from power wiring For top entry routing see Figure 12 for bottom entry see Figure 13 Liebert CRV 16 Air Cooled Systems Figure8 Electrical field connections Disconnect views 3 p CONDUCTORS ony E commucrons ONLY E leomucroRS ONLY moo S di fis 208 230V 460V Wye 208 230V 1 Phase 120V Cord
180. pe with variable capacity operation from 20 10096 commonly known as a digital scroll The compressor solenoid valve unloads the compressor to provide variable capacity operation The compressor has a suction gas cooled motor vibration 1solators internal thermal overloads manual reset high pressure switch rotalock service valves low pressure and high pressure transducer crankcase heater internal centrifugal oil pump and an operating speed of 3500rpm 60Hz 2900rpm 50Hz Fan The unit is equipped with two plug fans Direct drive 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 Liebert iCOM through all modes of operation Each fan has a dedicated motor and speed controller that provide a level of redundancy The fans are located on the rear panel of the unit and push air through the coil Supply Air Baffle A field adjustable modular supply air baffle is located in the discharge air stream It can be quickly and easily configured 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 Liebert iCOM Control System The Liebert CRV is controlled by the Liebert iCOM The standard user interface is the Large Graphical Display 320x240 pixels backlit which presents system information and allows all parameters to be view
181. polymeric insulation and secured using quarter turn fasteners Serviceability The cabinet shall be designed so all components are easily accessible for service and maintenance through either the front or rear of the unit Units that are not fully accessible from front and rear or not serviceable 1n place shall be unacceptable Models CR020 CR035 CR040 The Superior Service Access Panel shall provide additional access to the top of the system components Side access shall not be required The variable speed EC plug fans shall be mounted on the rear door to provide access to all sides when swung out of the unit Units with a compressor dual float condensate pump and canister humidifier shall have components conveniently mounted near the edge of the unit Model CR019 Cr032 Side access shall not be required Each of the variable speed fans shall be individually replaceable through the front door of the unit Units with a compressor and condensate pump shall be conveniently mounted near the edge of the unit Supply Air Baffle System Models CR020 CR035 CR040 A field adjustable modular supply air baffle system shall be located in the discharge airstream on the front of the cabinet to direct air toward the server racks and balance airflow requirements within the row The six modular baffle segments shall be easily reconfigurable to redirect airflow as cooling requirements change Controlling the airflow prevents hot spots and maintains hig
182. potential only Acceptable Unit Input Electrical Service for 460V 480V Nominal Units 480V wye with solidly grounded neutral and 277V line to ground Unacceptable Unit Input Electrical Service for 460V 480V Nominal Units Wye with high resistance or impedance ground Delta without ground or with floating ground Delta with corner ground Delta with grounded center tap 67 Liebert CRV Liebert CRV Water Glycol Systems Figure 39 Electrical field connection locations 600mm 24in water glycol units a Unit Top Refer to 5 2 1 Electrical Connections Standard Features 600mm 24in Water Glycol Units and 5 2 2 Electrical Connections Optional Features 600mm 24in Water Glycol Units for keys to numbered components 2 1 2 64mm Field High Voltage Knockout 1 3 32 28mm Field Low Voltage Knockout 1 3 4 44 5m Q c 9 c 2 c 23 c 3 Oo OOS OD OD OO OHO PIO ot 9 ot 5 Motil pio POCS pio pio OVERLOAD PROTECTORS o CONTACTORS PI poes PpO Pocos PICS DISCONNECT SWITCH m m Field Low Voltage CANbus Knockout p6 H0 Not Used Di 75 Not JOM Used Mem 12 49 3 PU 6 pico bies 11 PICS PIO 8 IION POCS 44 eS rief PICS a C9 Moll Mott 9 9 Factory Terminals Typically
183. pressor operation normally open dry contact is closed across Terminals 70 and 71 to heat rejection equipment 1A 24VAC maximum load Use field supplied Class 1 wiring CANbus Connector Terminal block with Terminals 49 1 CAN H and 49 3 CAN L SH shield connection The terminals are used to connect the CANbus communication cable field supplied from the indoor unit to the Liebert MC Condenser Premium Model CANbus Cable CANbus cable provided by others to connect to the outdoor condenser No special considerations are required when the total external cable connection between the indoor unit and outdoor unit s is less than 450 ft 137m A CANbus isolator is required for total external cable connections greater than 450 ft 137m but less than 800 ft 243m Cable must meet the following specifications Conductors 22 18AWG stranded tinned copper Twisted pair minimum four twists per foot 305mm Braided shield or foil shield with drain wire Low capacitance 15pF ft or less UL approved temperature rated to 167 F 75 C UL approved voltage rated to 300V UV resistant and moisture resistant if not run in conduit Plenum rated NEC type CMP if required by national or local codes Examples Belden 89207 plenum rated or Alpha Wire 6454 Category 5 5e or higher 97 Liebert CRV Chilled Water Systems 600mm 24in and 300mm 12in Cabinets 7 7 2 Electrical Field Connections for Optional Features 3
184. quirements NOTE Failure to use compressor oils recommended by compressor manufacturer will void compressor warranty Consult Emerson or the compressor manufacturer for further recommendations or if you have questions about compressor oils Refer to ASHRAE Refrigeration Handbook for general good practices for refrigeration piping The Liebert indoor cooling unit has a factory installed high pressure safety switch in the high side refrigerant circuit A pressure relief valve is provided with Liebert Lee Temp receivers A fusible plug is factory installed in the Liebert DSE receivers Consult local building codes to determine if condensers without receivers will require field provided pressure relief devices A fusible plug kit is available for field installation 45 Liebert CRV Heat Rejection Liebert MC and Fin Tube Condensers Figure 29 Liebert MC piping schematic with and without Liebert Lee Temp Check Valve Service Relief Valve Valve LIQUID RETURN Head Pressure LIEBERT LEE TEMP RECEIVER Control Valve Check Valve CONDENSER CONDENSER COIL Optional Field Installed Ay COIL Fusible Plug N J For rises over 25ft 7 6m EVAPORATOR trap ever 20ft 6m or COIL evenly divided HOT GAS DISCHARGE LIEBERT LEE TEMP mn I I Field installed relief valve s required for 50Hz EU CE units Equalizer solation Valve eium HOT GAS DISCHARGE
185. r Glycol Units Source DPN001884 Rev 7 Pg 1 13 14 15 16 Condensate Pump High Water Alarm available when optional pump is installed On pump high water indication normally open dry contact is closed across Terminals 88 and 89 for remote indication 1A 24VAC maximum load Use field supplied Class 1 wiring Liebert Liqui tect Shutdown and Dry Contact available when optional Liebert Liqui tect sensor is installed On Liebert Liqui tect activation normally open dry contact is closed across Terminals 58 and 59 for remote indication The Liebert Liqui tect sensor notifies the Liebert 1COM of indication through Terminals 60 and 61 1A 24VAC maximum load Use field supplied Class 1 wiring Reheat and Humidifier Lockout Remote 24VAC required at Terminals 82 and 83 for lockout of reheat and humidifier Additional Common Alarm On any alarm one additional normally open dry contact is closed across Terminals 94 and 95 for remote indication 1A 24VAC maximum load Use Class 1 field supplied wiring NOTE Refer to specification sheet for total unit full load amps wire size amps and maximum overcurrent protective device size NOTICE Risk of improper input power Can cause equipment damage The electronically commutated motors included in the Liebert CRV included in 480V CR035 and CR040 units are suitable for connection to an electrical service providing input power to the unit with 300V or less line to ground
186. r clog alarm 1s included Locking Disconnect Switch A molded case circuit interrupter disrupts the flow of power to the unit The electric panel high voltage compartment can be accessed only with the switch in the Off position The switch is behind the Liebert iCOM display door for quick access 65 000A Short Circuit Current Rating SCCR The electrical panel provides a 65k amp SCCR Liebert CRV 78 Liebert CRV Water Glycol Systems 5 7 Optional Features 600mm 24in Water Glycol Systems Source DPN001905 Rev 3 DX Cooling Coil The evaporator coil has 7 25 ft 0 674 m face area four or five 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 includes a liquid line filter dryer 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 unloads the compressor to provide variable capacity operation The compressor has a suction gas cooled motor vibration 1solators internal thermal overloads manual reset high pressure switch rotalock service valves low pressure and high pressure transducer crankcase heater internal cen
187. r 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 be accessed only with the switch in the Off position Located behind the rear door and filters for access 65 000A Short Circuit Current Rating SCCR The electrical panel provides a 65k amp SCCR 31 Liebert CRV Air Cooled Systems 3 13 Optional Features 300mm 12in Air Cooled Systems Source DPN002812 Rev 2 Dual float Condensate Pump Capacity of 45 GPH 171 l hr at 13 ft 4m 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 Liebert IntelliSlot Sitelink E Card IS 485EXT Provides ground fault isolated connection to a Liebert SiteLink E for monitoring and management Compatible with Liebert SiteScan Web 4 0 or newer version Liebert IntelliSlot Unity Card IS UNITY DP Provides ground fault isolated RS 485 Modbus BACnet IP and Modbus IP network connectivity to Building Management Systems for unit monitoring and management Also provides ground fault isolated 10 100 baseT Ethernet connectivity for unit monitoring and management The supported management interfaces include SNMP for Network Management Systems HTTP for Web page viewing SMTP
188. r the installation The design takes into account the equipment required equipment sizes with the heat load or power consumption cooling equipment type chilled water or water glycol based and whether cooling or power redundancy is desired Some typical components are Liebert APM DCF or DCM Cabinets Liebert Battery Cabinets Modular Containment Liebert BDC Liebert MB Liebert CRV Liebert PDU s Depending on heat load and power requirements there may be multiple Liebert Thermal Management units and multiple AC Power Protection and Distribution units Figure 67 SmartAisle installation example Liebert MB modular busway Roof Panel a one of six Sliding Doors Row Based Equipment racks Liebert CRV Liebert UPS battery cabinet A 3 PLACING LIEBERT CRV UNITS IN Rows OF RACKS FOR EFFICIENCY This chapter provides examples of typical Liebert CRV installations For best performance of the Liebert CRV observe the following guidelines Create defined hot and cold aisles eliminate gaps between server racks and utilize blanking plates to fill open sections within the racks Install the 2T rack temperature sensors on the front door of all equipment the Liebert CRV is cooling Use walls or opposing racks to minimize the width of the hot and cold aisles target 2 6 ft 0 6 to 1 8m For site specific recommendations on how to optimize your space for row based cooling contact your local Emerson represe
189. rate properly with delta connected power A field supplied isolation transformer or other power solutions will be needed to for proper condenser function Liebert CRV 44 Heat Rejection Liebert MC and Fin Tube Condensers 4 5 4 5 1 Piping Liebert MC Condensers Piping Guidelines Indoor units and condensers both ship with holding charges of inert gas Do not vent the condenser until all refrigerant piping is in place ready for connection to indoor unit and condenser Use copper piping with a brazing alloy with a minimum temperature of 1350 F 732 C such as Sil Fos Avoid soft solders such as 50 50 or 95 5 Use a flow of dry nitrogen through the piping during brazing to prevent formation of copper oxide scale inside the piping When copper is heated in the presence of air copper oxide forms POE oil will dissolve these oxides from inside the copper pipes and deposit them throughout the system clogging filter driers and affecting other system components A pure dry nitrogen flow of 1 3 ft min 0 5 1 5 l s inside the pipe during brazing is sufficient to displace the air Control the flow using a suitable metering device Ensure that the tubing surfaces to be brazed are clean and that the ends of the tubes have been carefully reamed to remove any burrs Ensure that all loose material has been cleaned from inside the tubing before brazing Protect all refrigerant line components within 18 460mm of the brazing sit
190. re PSI kPa 200 1379 Maximum Differential Pressure Full Flow PSI kPa 50 345 Operating Limits for Chilled Water Units Table 47 Operating limits Chilled water 600mm 24in and 300mm 12In wide models Minimum Entering Maximum Water Maximum Close Off Water Temperature F C Models Pressure psi kPa Pressure psi kPa Design Condition CRO40RC CRO032 325 2241 200 1379 45 7 2 Lieber CRV 92 Chilled Water Systems 600mm 24in and 300mm 12in Cabinets T 6 Electrical Data 600mm 24in Units Table 48 Electrical data Chilled water 600mm 24in wide models CRO40RC Voltage 460 3 60 208 3 60 Dehumidification With or Without Humidifier Reheat Condensate Pump FLA 12 2 24 9 WSA 15 3 31 1 OPD 15 35 Dehumidification Condensate Pump and Humidifier NO Reheat FLA 8 4 16 7 WSA 10 5 20 9 OPD 15 25 Dehumidification and Condensate Pump NO Reheat NO Humidifier FLA 4 7 8 3 WSA 5 1 9 1 OPD 15 15 Dehumidification and Reheat NO Condensate Pump NO Humidifier FLA 11 0 22 6 WSA 13 8 28 3 OPD 15 30 Dehumidification NO Condensate Pump NO Reheat NO Humidifier FLA 3 5 6 0 WSA 3 9 6 8 OPD 15 15 93 Liebert CRV Chilled Water Systems 600mm 24in and 300mm 12in Cabinets Figure 53 Electrical field connection locations Refer to 7 6 1 Electrical Con
191. ressure and high pressure transducer crankcase heater internal centrifugal oil pump and an operating speed of 3500 rpm 60Hz 2900rpm 50Hz Fans The unit is equipped with five plug fans direct driven centrifugal fans with backward curved blades and electronically commutated motors commonly referred to as EC plug fans The fan speed is variable and automatically regulated by the Liebert iCOM through all modes of operation Each fan has a dedicated motor and integrated speed controller that provides a level of redundancy The fans are in the front of the unit and pull air through the coil Supply Air Baffle Field adjustable modular supply air baffles are located in the discharge air stream They can be quickly and easily reconfigured to redirect airflow Liebert iCOM The Liebert CRV is controlled by the Liebert 1COM The standard user interface is the Large Graphical Display 820x240 pixels backlit which presents system information and allows all parameters to be viewed and adjusted It features push button navigation operational status LED s and a three level password protection system Unit to Unit communication with other Liebert CRV s and two Liebert IntelliSlot communication card housings are included as standard 2T Rack Temperature Sensors Each consists of a vented case with two temperature probes Three 2T rack sensors are standard with each Liebert CRV Up to ten 2T housings 20 temperature probes can be connected
192. rflow Octave Band Frequency Hz At Suction Side 2m At Discharge Side Distance 1 5m 2m Distance 1 5m A Scale Above Ground Free Above Ground Free Fan 31 5 63 125 250 500 1000 2000 4000 8000 Weighted Inlet Outlet Field Conditions Field Conditions Speed SCFM m h dB dB dB dB dB dB dB dB dB dB A dB A dB A 2m f f dBA 2m f f dBA 100 2610 4435 72 2 82 3 81 5 81 2 78 1 70 2 64 7 85 4 76 7 82 6 65 7 71 6 75 2216 3765 69 7 79 0 79 1 77 4 73 9 65 9 62 3 81 6 72 7 79 9 61 8 68 9 50 1615 2744 71 1 66 1 67 2 65 1 59 5 55 2 51 8 69 4 62 0 70 2 51 0 59 2 1 Normal operation of unit at 208 230V 3ph 60Hz Liebert CRV 28 Air Cooled Systems 3 10 Standard Features 600mm 24in Air Cooled Systems Source DPN001904 Rev 3 DX Cooling Coil The evaporator coil has 7 25 ft 0 674 m face area four or five rows deep It is constructed of copper tubes and hydrophilic coated aluminum fins The hydrophilic coating provides superior water carryover resistance Two stainless steel condensate drain pans are provided Refrigeration System Single refrigeration circuit includes a liquid line filter dryer 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 ty
193. rminal Strip on bottom left of condenser enclosure Heat Rejection Interlock B Liebert CRV 300mm 12 CANbus Cable A Heat Rejection Interlock B Connection Shield Connection COMPONENT NOTES Component appearance orientation and positioning may vary terminal names and callouts remain constant CABLE NOTES A 1 Field supplied cable shielded 22 18AWG stranded tinned copper twisted pair minimum four twists per foot low capacitance 15pf ft or less must be rated to meet local codes and conditions examples Belden 89207 plenum rated or alpha wire 6454 Category 5 5e or higher 2 Do not run in same conduit raceway or chase as high d voltage wiring P78 Termination Jumper 3 contact factory for CANbus network lengths greater Factory set to Pins 2 and 3 than 350ft 107m Kp ir Installer must remove Jumper WIRE NOTES B 1 Field supplied wire and replace on Pins 1 and 2 18AWG or greater Factory Wiring Between rated 600V z 2 run two wires from indoor unit to condenser s Liebert iCOM and Terminal Strip DPNO003036 Rev 1 Liebert CRV 42 Heat Rejection Liebert MC and Fin Tube Condensers 4 4 2 Wye vs Delta Connection Power Supply MCM and MCL Models with EC Fans Condensers can operate on wye or delta connection power supply Figure 27 Wye and delta power supply connection diagram Wye Power Supply Connection Phase A Winding
194. rom 20 F to 115 F 29 to 46 C The Liebert Lee Temp models provide operation in colder outdoor environments ranging from 30 F to 115 F 34 to 46 C Table 24 Traditional open room return air conditions Ambient Temperature Selection 95 F 35 C Standard Selection 100 F 115 38 C 46 C Unit Units with Units with Model No Width VFD Units Liebert Lee Temp VFD Units Liebert Lee Temp CRO20A 600mm TCSV28K DCSL28K TCSV60K DCSL60K CR035A 24in TCSV60K DCSL60K TCSV90K DCSL90K Liebert CRV 50 Heat Rejection Liebert MC and Fin Tube Condensers 4 8 Dimensions and Weights Liebert Fin Tube Condensers Figure 32 Cabinet and anchor dimensions R 410A single circuit Liebert Lee Temp condensers 43 9 16 1106mm See Table 22 for dimensions A B and C on different model condensers 43 1 8 1095mm 37 7 8 962mm 1 3 4 44 5mm Cc B 108 0mm Er 74 Two Fan a Electric Legs Supplied with Condenser 41 3 16 BoxEnd Liebert Lee Temp 1046mm Option Only e eue C ccc MAR Anchor Plan DPNO001623 Pg 2 Rev 7 LL 1 7 8 ACT Sinaia Table 22 Cabinet and anchor dimensions R 410A Liebert Lee Temp control single circuit condensers 60Hz of of A B C Net Weight Model No Fans Legs in mm in mm in mm Ib kg DCSL28K 1 4 51 1 2 1308 42 1067 32
195. s fan motor heat factored in for all ratings 2 Capacity data is factory certified to be within 596 tolerance 3 Data rated with standard filter Table 5 Physical data 300mm 12in wide models 19kW Model System DX Fan Data Total Airflow CFM m h 2250 3823 Total Fan Motor hp kW 0 65 0 48 Number of Fans 5 Evaporator Coil Face Area ft m 6 46 0 6 Rows 3 Face Velocity FPM m s 369 1 77 Condensate Pump Dual Float Type Capacity GPM l m Filter Section MERV 1 Washable Type 208V condensate pump rated for 0 77GPM at 13 ft 2 8 I m at 3 9m of total head pressure 266V condensate pump rated for 0 81 GPM at 13 ft 3 1 I m at 3 9 m of total head pressure Quantity 2 Nominal Size in mm 35 5 x 10 8 x 0 4 902 x 274 x 10 Effective Surface Area ft m 2 3 0 21 Liebert CRV 10 Air Cooled Systems 3 2 Operating Limits Air Cooled Systems The Liebert CRV is designed to operate within the working ranges in Table 6 These limits refer to new units and those that have been correctly installed and serviced Table 6 Environmental limits all models Design Condition Parameter Minimum Maximum Unit Entering Temperature 75 F 23 9 C 110 F 43 3 C Air Conditions Relative Humidity 15 60 Storage Conditions Temperature 4 F 20 C 122 F 50 C Voltage 10 Frequency 2Hz
196. s or out the ends of aisles By focusing the cold air where it is needed and meeting the servers requirements the need for excessive airflow and energy consumption is eliminated Cabinet Construction and Accessibility Cabinet Construction Models CR020 CR035 CR040 The exterior panels shall be 20 gauge steel and powder coated with charcoal color paint to protect against corrosion The double wall side panels separate the half inch 2 0 Ib ft insulation from the airstream and increase unit rigidity The unit shall be mounted on casters for quick installation and provided with leveling feet The perforated inlet and outlet panels shall have 81 open area The rear door shall utilize a Kn rr rack style handle and hinges to mirror the appearance of neighboring server racks Model CR019 CR032 The exterior panels of the unit shall be 20 gauge steel and powder coated with charcoal color paint to protect against corrosion and follow Kn rr rack appearance guidelines to mirror the style of neighboring equipment racks The cabinet shall be mounted on casters for quick installation and provided with leveling feet Both doors shall have a powder coated sheet metal frame with hexagonal perforations leaving 8196 of the door open to airflow for efficient cooling The front and rear doors shall swing 170 degrees open shall be removable and shall feature a two point latch The powder coat painted steel side panels shall be lined with half inch closed cell
197. sconnect is standard However a site disconnect may be required per local code to isolate the unit for maintenance Route the supply power to the site disconnect switch and then to the unit Route the conduit to the knockout provided in the bottom right end of the electrical control enclosure Connect the earth ground wire lead to the marked earth ground connection terminal provided near the factory installed disconnect switch see Figure 24 4 NOTE Liebert Lee Temp kits require a separate line voltage electrical supply for the heated receivers See Table 17 for power requirements Electrical Field Connection Descriptions Liebert MC Condensers Key Electrical Details Typical Connections Premium Efficiency Control Source DPN002169 Rev 7 1 Three Phase Electrical Service Terminals are on top of disconnect switch for one fan and two fan units Terminals are on bottom of disconnect switch for three fan and four fan units Three phase service not by Emerson See Note 5 2 Earth Ground Field lug terminal for earth ground connection Ground terminal strip for fan motor ground connection 9 Primary High Voltage Entrance T wo knockouts each 7 8 22 2mm diameter at the bottom of the enclosure 4 SPD Field Connection Terminals High voltage surge protective device SPD terminals SPD is an optional device 5 CANbus Terminal Connections Field terminals for CANbus cable connection see Figures 24 and 25 bA is the CAN
198. sor is connected to the previous sensor in a daisy chain configuration Remote Shutdown Terminal Provides a location to remotely shut down the unit Common Alarm Contact Provides 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 unit is mounted on casters for quick installation and provided with leveling feet The perforated inlet and outlet panels have 81 open area The front door is hinged the rear door may be lifted off the unit Service Access All service and maintenance is performed through the front or 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 Filter The unit is equipped with two 1 2 inch filters rated MERV1 based on ASHRAE 52 2 2007 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 be accessed only with the switch in the Off position Located behind the rear door and filters for access Short Circuit Current Rating SCCR The electrical panel provides a 65k amp SCCR for 208V and 460V units and 5k amp SCCR rating for 120V units 113 Liebert CRV Chilled Water Systems 6
199. specifications Conductors 22 18AWG stranded tinned copper Twisted pair minimum four twists per foot 305mm Braided shield or foil shield with drain wire Low capacitance 15pF ft or less UL approved temperature rated to 167 F 75 C UL approved voltage rated to 300V UV resistant and moisture resistant if not run in conduit Plenum rated NEC type CMP if required by national or local codes Examples Belden 89207 plenum rated or Alpha Wire 6454 Category 5 5e or higher Electrical Field Connections Optional Features 300mm 12in DX Models Source DPN002810 Rev 5 14 15 16 Condensate Pump High Water Alarm available when optional pump is installed On pump high water indication normally open dry contact is closed across Terminals 88 and 89 for remote indication 1A 24VAC maximum load Use field supplied Class 1 wiring Liebert Liqui tect Shutdown and Dry Contact available when optional Liebert Liqui tect sensor is installed On Liebert Liqui tect activation normally open dry contact is closed across Terminals 58 and 59 for remote indication The Liebert Liqui tect sensor notifies Liebert iCOM of indication through Terminals 60 and 61 1A 24VAC maximum load Use field supplied Class 1 wiring Additional Common Alarm On any alarm one additional normally open dry contact is closed across Terminals 94 and 95 for remote indication 1A 24VAC maximum load Use field supplied Class 1 wir
200. t b During SPD alarm normally open contact is closed across Terminals 12 and 13 SPD is an optional device 9 CANbus Shield Terminal Terminal for field shield connection of the CANbus field supplied cables The shield of CANbus field supplied cables must not be connected to ground at the condenser 10 Primary Low Voltage Entrance One knockout 7 8 22 2mm diameter that is free for customer low voltage wiring 11 SPD Entrance One 7 8 22 2mm diameter knockout hole at the bottom of the enclosure High voltage surge protective device SPD is optional Figure 24 Typical connections Premium Efficiency Control Fan2 Liebert Lee Temp receiver tank 1 per circuit NOTE Heater pad voltage available for 120V 1ph 60Hz or 230V 1ph 60Hz 150 or 300 watt varies by condenser MIR Electrical connection box cover removed for clarity Without Liebert Lee Temp Electrical service connection lcu d Piatails i i With Liebert igtails in electric handy box ite Lee T are factory wired to Liebert Lee Temp A aoe heater pads for field connection of separate continuous electric source wire not by Emerson Z EL e L e e SN SS MS o e IC e nic A CA Ce nic Cy I nnn 2 E 2 H kad 95 B e e e e e e E 5B zias EM EMI
201. t from power wiring Refer to Figure 13 for bottom entry control wire routing Liebert CRV 102 Chilled Water Systems 600mm 24in and 300mm 12in Cabinets Figure 59 Liebert IntelliSlot cable routing Bottom entry 300mm 12in chilled water models SOME COMPONENTS NOT SHOWN FOR CLARITY General wire routing paths shown Wiring must be run in conduit and must be inside Liebert CRV frame and panels Attach conduit to inside of rails with cable ties Shielded cable may be used If not control wiring must be run in separate conduit from power wiring Secure the control wiring or conduit to the bottom edge of the rail with cable ties Route the shielded cable up toward the Liebert IntelliSlot bays and fasten to the side rails as needed D d S E SS i Low voltage field wiring je E shielded cable gt Low voltage field wiring twisted pair Secure tie the field wiring shielded cable to the rail Route the shielded cable up toward the Liebert IntelliSlots and fasten to the side rails as needed DPNO002814 Pg 3 Rev 3 103 Liebert CRV Chilled Water Systems 600mm 24in and 300mm 12in Cabinets 7 8 Dimensions 600mm 24in a
202. tem 3 2 3 2 1 3 3 Field Quality Control Start up cooling units in accordance with manufacturer s startup instructions Test controls and demonstrate compliance with requirements These specifications describe requirements for a computer room environmental control system The system shall be designed to maintain temperature and humidity conditions in the rooms containing electronic equipment The manufacturer shall design and furnish all equipment to be fully compatible with heat dissipation requirements Supply and Drain Water Piping Connect water supply and drains to air conditioning unit Provide pitch and trap as manufacturer s instructions and local codes require Seismic IBC OSHPD Install unit in accordance with manufacturer s installation instructions provided with seismic option Firmly anchor maintaining manufacturer s recommended clearances Mounting requirement details such as anchor brand type embedment depth edge spacing anchor to anchor spacing concrete strength special inspection and attachment to non building structures must be outlined and approved by the Engineer of Record for the projection or building Wiring and piping connections must permit movement in three dimensions and isolate the unit from field connections Electrical conduit shall be flexible having at least one bend between the rigid connection at the unit cabinet and the connection to rigid conduit or foundation The piping flexible connection
203. ter that coordinates operation If for any reason the virtual master becomes disconnected the control shall shift responsibility to the next unit in the group Liebert CRV 146 Guide Specifications Row Based Environmental Control System 2 13 2 13 1 Remote 2T Sensor Sharing Each Liebert CRV can have up to ten 2T sensors connected and used as a controlling sensor As part of the U2U network and teamwork those sensors shall be shared and used to control the units and provide greater flexibility visibility and control using that to respond to changes in the data center Those sensors can be as a minimum maximum or average temperature to control Quick Start Each Liebert CRV unit shall be equipped with a quick start feature that allows the unit to quickly recover from a loss of power Global Condenser Direct expansion Liebert CRV s can be matched to a premium global condenser device that will provide an intelligent communication link This enables enhanced monitoring and alarming diagnostics insight nighttime low noise mode and fan reversal for cleaning mode Rack Temperature Sensors The Liebert CRV shall be provided with three 2T rack temperature sensors each consisting of a vented case with two temperature probes The sensors shall provide real time direct feedback to the cooling unit to optimize the amount of cooling and airflow provided The sensor data shall be available to remote BMS and monitoring systems The sens
204. terial is non shedding and is outside of the airstream Liebert IntelliSlot Unity DP Provides ground fault isolated connectivity for unit monitoring and management Supported management interfaces include Emerson Protocol for Trellis Liebert SiteScan and Liebert Nform Embedded LIFE Technology for Remote Service Delivery SNMP v1 v2c v3 for Network Management Systems HTTP HTTPS for Web page viewing SMTP for e mail SMS for mobile messaging Modbus RTU Modbus Remote Terminal Unit RTU communication protocol for Building Management Systems over an RS 485 serial network also called Modbus RTU RS 485 Modbus TCP Modbus Transmission Control Protocol for Building Management Systems over an Internet or LAN network BACnet IP BACnet over Internet Protocol for Building Management Systems over a Internet or LAN network BACnet MSTP BACnet Master Slave Token Passing MSTP communication protocol over an RS 485 serial network also called BACnet MSTP RS 485 Liebert IntelliSlot SiteLink E CARD IS 485EXT Provides ground fault isolated connection to a Liebert SiteLink E for monitoring and management Compatible with Liebert SiteScan Web 4 0 or newer version Filter The optional filters are two deep pleated four inch filters rated MERV11 following ASHRAE 52 2 60 65 by ASHRAE 52 1 located within the cabinet and accessible from the rear of the unit A filter clog alarm is included Reheat Humidifier Lockout
205. th Valve Core Notes Schematic representation shown Do not use for specific connection locations 2 Install a 35 mesh strainer in an easily accessible location on the water glycol supply to prevent particles from entering the heat exchanger Strainer bypass valves are reccomended to allow the strainer to be cleaned while maintaining flow to the cooling unit DPN003039 3 Unit connections may be ordered top or bottom 4 Valves not provided by Emerson but are required for proper circuit operation and Rev 0 maintenance They should be installed near the Liebert CRV Liebert CRV 76 Liebert CRV Water Glycol Systems 5 5 Sound Data Water Glycol Systems Table 37 Sound data Model CRO20RW CRO35RW 600mm 24in water glycol model Sound Pressure 2 Fans with Filter Sound Power Level PWL Level SPL Airflow Octave Band Frequency Hz Suction Side A Scale 2m distance Fan 31 5 63 125 250 500 1000 2000 4000 8000 Weighted free field conditions Speed SCFM mh dB dB dB dB dB dB dB dB dB dB A 2m f f dBA 100 2454 4170 73 8 69 4 71 77 3 75 9 74 2 73 5 68 2 59 2 79 6 69 2 75 2166 3680 71 2 66 8 68 4 74 7 73 3 71 6 70 9 65 6 56 6 TT 66 9 50 1780 3025 67 6 63 2 64 8 71 1 69 7 68 67 3 62 53 73 4 63 9 Level PWL so
206. tifies the Liebert iCOMP of indication through Terminals 60 and 61 1A 24VAC maximum load Use field supplied Class 1 wiring 16 Additional Common Alarm On any alarm one additional normally open dry contact is closed across Terminals 94 and 95 for remote indication 1A 24VAC maximum load Use field supplied Class 1 wiring 5 2 5 Wye vs Delta Connection Power Supply for 460V 300mm 12in Water Glycol Cooled Models Figure 40 Wye vs delta power supply connection diagram Phase A Fase Phase B Neutral Phase B Phase C Ph C ase Ground Wye Power Supply Connection Delta Power Supply Connection NOTICE Risk of improper input power Can cause equipment damage The Liebert CRV 300 mm 12in 460V unit is designed to operate with wye connected power with a solidly grounded neutral The 460V model will not operate properly with delta connected power A field supplied isolation transformer or other power solutions will be needed for proper function Acceptable Power Supplies 480V Nominal Units 480V wye with solidly grounded neutral and 277V line to ground Unacceptable Power Supplies 480V Nominal Units Wye with high resistance or impedance ground Delta without ground or with floating ground Delta with corner ground Delta with grounded center tap Liebert CRV 70 Liebert CRV Water Glycol Systems 5 3 Dimensions Water Glycol Systems Figure 41 Cabinet and floor planning dimensions Water glycol cool
207. tion 1 0 LiEBERT CRV COMPONENT LOCATION Figure1 Component location common components 600mm 24 all models 1 Top electrical entrance 2 Electric box Top humidifier water supply condensate pump drain Supply and Return Connections EC plug fans Humidifier distributor Condensate pump 4 5 6 Electric heaters 7 8 9 Bottom electrical entrance 10 Bottom condensate pump drain 11 Evaporator CW coil 12 Liebert iCOM 13 Serial tag inside door KS Liebert CRV 2 Liebert CRV Component Location Figure2 Component location Liebert 300mm 12 CR019 air cooled units Liebert iCOM Evaporator Coil Connections Bottom Refrigerant and Condensate Pump Drain Knockouts for Bottom Electrical Entrance Compressor Caster and Leveling Foot each corner Electric Box Serial Tag Main Disconnect Switch Top Electrical Entrance Baffles Five Assemblies EC Plug Fans Five on Lift Off Door Top Refrigerant Connections
208. tivity to Building Management Systems for unit monitoring and management Also provides ground fault isolated 10 100 baseT Ethernet connectivity for unit monitoring and management The supported management interfaces include SNMP for Network Management Systems HTTP for Web page viewing SMTP for e mail and SMS for messaging Supports dual IP and 485 protocols simultaneously Filter The optional filters are two deep pleated 2 inch rated MERV8 based on ASHRAE 52 2 2007 located within the cabinet and accessible from the rear of the unit A filter clog alarm is included One Extra Common Alarm Contact Provides two sets of normally open N O contacts for remote indication of unit alarms Liebert Liqui tect Solid state water sensor hermetically sealed to keep out dust and dirt The alarm system is activated when the sensor detects moisture Two Way Modulating Valve A two way modulating valve controls the water glycol flow through the brazed plate condenser The Liebert iCOM manages the valve actuator movement to maintain the desired condensing temperature for various entering water flow rates and temperatures The maximum differential pressure across the closed valve is 43 5 PSI 300 kPa Maximum system pressure is 230 PSI 1586 kPa 81 Liebert CRV Heat Rejection Drycoolers 6 0 HEAT REJECTION DRYCOOLERS 6 1 Liebert Drycoolers for Water Glycol Cooled Liebert CRV s Liebert drycoolers are designed to work wit
209. to a Liebert CRV300 One 2T housing and both sensor probes are to be attached to a rack that the Liebert CRV 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 relayed 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 in a daisy chain configuration Remote Shutdown Terminal Provides a location to shut down the unit remotely Common Alarm Contact Provides 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 unit is mounted on casters for quick installation and provided with leveling feet The perforated inlet and outlet panels have 81 open area The front door is hinged the rear door may be lifted off the unit 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 Filter The unit is equipped with two half inch filters rated MERV1 based on ASHRAE 52 2 2007 inside the cabinet and accessible from the rea
210. tprint penalty The intelligent Liebert iCOM control and variable system components allow the unit to minimize its operations without sacrificing environmental control Figure 72 Number of racks row length racks p Hot Aisle Hot Return Air 6 ft 1 8m Maximum Distance to Barrier Cold Supply A Cold Aisle Liebert CRV 118 Liebert CRV Intended Application A 4 A 4 1 PLACEMENT IN THE ROOM Depth of Hot Aisle Cold Aisle For optimal air distribution use opposing racks or walls to clearly define the hot and cold aisles This will help to create an efficient and effective air circulation path from the cooling unit to the server racks and back to the cooling unit This helps to avoid cold air being lost to the room and prevents hot air from entering the cold aisle The supply air baffle has been optimized for aisle spacing of 2 to 6 feet wide Emerson s SmartAisle cold aisle containment system is recommended for maximum performance While the Liebert CRV is compatible with all forms of aisle containment its control algorithms have been optimized for partial and full cold aisle containment allowing for increased operating efficiency and reducing the number of 2T rack sensors Figure 73 Depth of hot cold aisles A 5 Hot Return Air Hot Aisle 6 ft 1 8m Cold Supply Air Cold Aisle Maximum Distance REDUNDANCY ARRANGEMENT When laying out row based units for redundancy it is better to run a
211. trifugal oil pump and an operating speed of 3500 rpm 60Hz 2900 rpm 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 Liebert iCOM through all modes of operation Each fan has a dedicated motor and speed controller which provides a level of redundancy The fans are on the unit s rear panel t and push air through the coil Water Glycol Condenser Is an efficient stainless steel brazed plate condenser Water side threaded connections are provided for convenience Proper filtration must be field supplied when used on open loop water systems cooling towers etc Emerson recommends using a water glycol mixture when operating on a closed loop to avoid undesired ice formation in the winter Three way Modulating Valve A three way modulating valve controls the water glycol flow passing through the brazed plate condenser The Liebert iCOM manages the valve actuator movement to maintain the desired condensing temperature for various entering water temperatures The maximum differential pressure across the closed valve is 43 5 PSI 300 kPa 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 configured to redirect airflow
212. tted from the compressor The package shall consist of a 3 8 inch closed cell polymeric 4 5 8 5 Ib ft density compressor sound jacket that encloses the compressor Additional half inch closed cell polymeric 3 8 lb ft density sound deadening material shall be affixed to the underside of the Superior Service Access Panel located above the compressor and attached to the inner side of the compressor compartment panels that face the hot and cold aisles All sound deadening material shall be non shedding and located outside the airstream 2 1 2 6 Modulating Valve Two Way A two way modulating valve shall control the water glycol flow through the insulated brazed plate condenser The Liebert iCOM shall manage the valve actuator movement to maintain the desired condensing temperature for various entering water temperatures The maximum differential pressure across the closed valve shall be 43 5 PSI 800 kPa Maximum system pressure shall be 230PSI 1 586 kPa Three Way A three way modulating valve shall control the water glycol flow through the insulated brazed plate condenser The Liebert iCOM shall manage the valve actuator movement to maintain the desired condensing temperature for various entering water temperatures The maximum differential pressure across the closed valve shall be 43 5 PSI 800 kPa Maximum system pressure shall be 230PSI 1586 kPa 2 1 2 7 Brazed Plate Heat Exchanger 2 1 3 2 1 3 1 The heat exchanger sha
213. ubject to change without notice Liebert is a registered trademark of Liebert Corporation All names referred to are trademarks or registered trademarks of their respective owners SL 11978_REV7_05 15 Emerson Network Power Liebert www emerson com Technical Support Service Web Site www liebert com Monitoring liebert monitoring emerson com 800 222 5877 Outside North America 00800 1155 4499 Single Phase UPS amp Server Cabinets liebert upstech emerson com 800 222 5877 Outside North America 00800 1155 4499 Three Phase UPS amp Power Systems 800 543 2378 Outside North America 614 841 6598 Environmental Systems 800 543 2778 Outside the United States 614 888 0246 Locations United States 1050 Dearborn Drive P O Box 29186 Columbus OH 43229 Europe Via Leonardo Da Vinci 8 Zona Industriale Tognana 35028 Piove Di Sacco PD Italy 39 0499719111 Fax 39 049 5841 257 Asia 29 F The Orient Square Building F Ortigas r Road Ortigas Center Pasig City 1605 Philippines 63 2 687 6615 Fax 63 2 730 9572 www EmersonNetworkPower com
214. ugh the Bottom of the Unit Two knockouts each 7 8 22mm diameter not shown Low Voltage Connection Through the Top of the Unit Two knockouts each 7 8 22mm diameter knockouts Remote Unit Shutdown Replace existing jumper between Terminals 37 and 38 with field supplied normally closed switch having a minimum 75VA 24VAC rating Use field supplied Class 1 wiring Customer Alarm Inputs Terminals for field supplied normally closed contacts having a minimum 75VA 24VAC rating between Terminals 3 and 50 Terminals 2 and 51 Terminals 5 and 55 or Terminals 3 and 56 Use field supplied Class 1 wiring Terminals 5 and 55 not available when optional condensate pump is installed Common Alarm On any alarm normally open dry contact is closed across Terminals 75 and 76 for remote indication 1A 24VAC maximum load Use field supplied Class 1 wiring Heat Rejection Interlock On any call for compressor operation normally open dry contact is closed across Terminals 70 and 71 to heat rejection equipment 1A 24VAC maximum load Use field supplied Class 1 wiring CANbus Connector Terminal block with terminals 49 1 CAN H and 49 3 CAN L SH shield connection The terminals are used to connect the CANbus communication cable provided by others from the indoor unit to the Liebert Microchannel Condenser Premium Model CANbus Cable CANbus cable provided by others to connect to the outdoor condenser No special considerations are required whe
215. um Overcurrent Protection Device NOTICE Risk of exceeding line to ground limit Can cause equipment damage The electrically commutated EC motors included in 480V CR035 and CR040 units are suitable for connection to power supplies with 300V or less line to ground potential Excess line to ground voltage can cause capacitor failure internal to the motors Power supplies such as 480V wye with solidly grounded neutral have 277V line to ground and are acceptable Power supplies such as 480V wye with high resistance or impedance ground 480V delta without ground or with floating ground 480V delta with corner ground or 480V delta with grounded center tap will exceed the 300V line to ground limit 65 Liebert CRV Liebert CRV Water Glycol Systems Table 36 Electrical data CR019 air cooled and water glycol cooled 300mm 12in models Voltage FLA WSA OPD With Condensate Pump 208 230V 3Ph 60Hz 33 4 39 9 60 460V 3Ph 60Hz Wye Connected 16 8 20 30 Without Condensate Pump 208 230V 3Ph 60Hz 32 5 39 60 460V 3Ph 60Hz Wye Connected 16 3 19 4 30 FLA Full Load Amps WSA Wire Size Amps OPD Maximum Overcurrent Protection Device 5 2 1 Electrical Connections Standard Features 600mm 24in Water Glycol Units Source DPN001884 Rev 7 Pg 1 1 2 10 11 12 High Voltage Connection Through the Bottom of the Electric Panel 1 3 8 34 9mm 1 3 4 44 5mm and 2 1 2
216. und power level Table 38 Sound data Model CR019RA 300mm 12in water glycol 5 Fans With Filter Sound Power Level PWL Sound Pressure Level SPL Airflow Octave Band Frequency Hz Suction Side Discharge Side 2m Distance 2m Distance 1 5m Above Ground 1 5m Above Ground Fan A Scale Free Field Free Field Speed 31 5 125 250 500 1000 2000 4000 8000 Weighted Inlet Outlet Conditions Conditions SCFM m h dB dB dB dB dB dB dB dB dB A dB A dB A 2m f f dBA 2m f f dBA 100 2610 4435 72 2 82 3 81 5 81 2 78 1 70 2 64 7 854 76 7 82 6 65 7 71 6 75 2250 3823 69 7 9 79 1 77 4 73 9 65 9 62 3 81 6 72 7 79 9 61 8 68 9 50 1615 2744 71 1 66 1 67 2 65 1 59 5 55 2 51 8 69 4 62 70 2 51 59 2 5 6 Standard Features 600mm 24in Water Glycol Systems Source DPN001905 Rev 3 DX Cooling Coil The evaporator coil has 7 25 ft 0 674 m face area four or five 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 includes a liquid line filter dryer 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 digit
217. unit including any component removal No side access is required Piping connection locations must be ordered top or bottom Electrical connections are made through the top or bottom of the unit Filter The unit is equipped with two half inch filters rated MERV1 based on ASHRAE 52 2 2007 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 be accessed only with the switch in the Off position Located behind the rear door and filters for access 65 000A Short Circuit Current Rating SCCR The electrical panel provides a 65k amp SCCR Optional Features 300mm 12in Water Glycol Systems Source DPN003038 Rev 0 Dual Float Condensate Pump Capacity of 45 GPH 171 l hr at 13ft 4m 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 Liebert IntelliSlot SiteLink E Card IS 485EXT Provides ground fault isolated connection to a Liebert SiteLink E for monitoring and management Compatible with Liebert SiteScan Web 4 0 or newer version Liebert IntelliSlot Unity Card IS UNITY DP Provides ground fault isolated RS 485 Modbus BACnet IP and Modbus IP network connec
218. unting brackets shall allow for sensor height adjustment and leveling The LT410 shall provide two independent outputs to signal both a local alarm panel and a remote building management system or external equipment The LT410 shall be rated for 24VAC 50 60Hz and 0 10 amp 2 16 9 Liebert Liqui tect 460 Zone Leak Detection Module with Cable Kit for Remote Mounting A total of quantity zone water sensor cables with no moving parts and hermetically sealed to keep out dust and dirt shall be provided The Liebert Liqui tect 460 LT460 shall provide a zone detection of leaks The LT460 shall constantly monitor points for leaks internal faults and power failures and warn of any abnormal conditions LED s shall provide status indication and also ensure the cable is properly installed and operational under raised floors The LT460 shall provide two independent outputs provide a signal to a local alarm panel Liebert environmental unit remote building management system or external equipment Liebert Liqui tect 460 Module The LT460 shall consist of a metal enclosure with a hinged top door providing access to the internal circuit board for wiring termination and configuration of DIP switches The LT460 shall monitor up to 100 feet 30m of connected LT500Y leak detection cable The LT460 shall be rated for 24VAC 50 60Hz and 0 124 LT500Y Leak Detection Cable The cable material and construction shall allow the cable to lie flat when used with hold do
219. unting bracket is used in the front and 1 4 14 Self Drilling rear of the unit Screws Supplied 4 This document is not to be used for field installation see 10 Places the Liebert CRV installation manual SL 11975 1 2 13 Bolts nuts and washers supplied Align holes in bracket SN N with holes in floor stand 3 Places e Bracket Supplied Front and Rear DETAIL A DPNO003273 Front of Liebert CRV Pg 3 Rev 0 Liebert CRV 136 Guide Specifications Row Based Environmental Control System APPENDIX D GUIDE SPECIFICATIONS ROW BASED ENVIRONMENTAL CONTROL SYSTEM 1 0 1 1 1 2 1 3 2 0 2 1 2 1 1 2 1 1 1 GENERAL Summary These specifications describe requirements for a mission critical environmental control system The system shall be designed to control temperature and humidity conditions in rooms containing electronic equipment with good insulation and vapor barrier The manufacturer shall design and furnish all equipment to be fully compatible with the heat dissipation requirements of the room Design Requirements The precision environmental control system shall be a self contained factory assembled Liebert unit with horizontal airflow delivery Standard 60Hz units shall be CSA NRTL C certified The air cooled condenser shall be a factory assembled unit complete with integral electrical panel designed for outdoor installation The condenser shall be a
220. urce DPN001623 Rev 7 Pg 3 57 Liebert CRV Heat Rejection Liebert MC and Fin Tube Condensers 4 11 4 11 1 4 11 2 Liebert Air Cooled R 410A VFD Control Fin Tube Condensers Features Features Liebert Air Cooled R 410A VFD Control Fin Tube Condensers Source DPN001624 Pg 1 Rev 8 Coil The coil is constructed of copper tubes in a staggered tube pattern Tubes are expanded into continuous rippled or enhanced aluminum type fins The fins have full depth fin collars completely covering the copper tubes which are connected to heavy wall type L headers Inlet coil connector tubes pass through relieved holes in the tube sheet for maximum resistance to piping strain and vibration Coils are factory leak tested at a minimum of 475 PSIG dehydrated then filled and sealed with an inert gas holding charge for shipment Fans Blades are constructed of zinc plated steel or aluminum with a diameter of 26 660mm and secured to the fan shaft by a heavy duty hub with set screw Fan guards are heavy gauge close meshed steel wire with corrosion resistant finish Fans are factory balanced and factory tested before shipment Fan Motors The variable speed fan motor is a specifically designed inverter duty motor with permanently lubricated ceramic bearings The Liebert variable frequency drive VFD control system provides overload protection for the variable speed motor Each ambient temperature controlled fan motor has built in overlo
221. ut High Voltage Bottom Combination Knockout Hur un TP 1 1 8 and 1 3 4 HVB Entrance feed through the 1 1 8 and 1 3 4 29mm and 44mm base of the unit 29mm and 44mm LVT1 Low Voltage Top Knockout Holes 2 LVB1 Low Voltage Top Connection Knockout Hole Connection Twisted Pair Diameter 7 8 22mm Twisted Pair Diameter 7 8 22mm LVT2 Low Voltage Top Knockout Holes 2 LVB2 Low Voltage Top Connection Knockout Hole Connection Shielded Cable Diameter 7 8 22mm Shielded Cable Diameter 7 8 22mm p Hole Diameter TDM Tie Down Mounting Top 1 8 3mm 4 Places Source DPN002815 Rev 3 Liebert CRV 108 Chilled Water Systems 600mm 24in and 300mm 12in Cabinets Figure 65 General arrangement CR030 and CR034 chilled water models 300mm 12in Chilled Water Coil NOTE Schematic representation shown Do not use for specific connection locations iL opm a ee Oe i pu T ee cum J AB B NY e AB 3 Way Motorized Ball OR A 2 Way Motorized Ball as ae ey ee a eee Valve Configuration Valve Configuration jp m Plug Pipe Chilled Water Supply Top of Unit Connection Plug Pipe Chilled Water Supply Bottom of Unit Connection Plug Pipe Chilled Water Return Top of Unit Connection Factory Piping Plug Pipe Chilled Water Return Isolation valves should be installed near the Liebert CRV Bottom o
222. with Bracing Condensers shall be shipped with 60in 1524mm mounting legs with stabilization bracing Legs bracing and hardware shall be galvanized steel 2 17 1 7 Condenser Accessories 2 17 1 7 1 Liebert Lee Temp Receiver Kit Liebert Lee Temp Receiver Kit shall contain an insulated heated receiver tank with sight glasses mounting plate mounting hardware pressure relief valve rotalock valve for refrigerant charge isolation and piping assembly with head pressure operated 3 way valve and check valve Components shall be field assembled to the condenser The three way valve shall sense refrigerant head pressure and adjust the flooding charge in the condenser coil to adjust the condenser heat rejection capacity 2 17 1 7 2 Fusible Plug Kit A fusible plug kit shall be field installed on the liquid line for compliance with building codes requiring refrigerant relief during high temperature and building fire conditions 2 17 1 7 3 IBC OSHPD Seismic Certification and IBC Wind Snow Load Complaint IBC OSHPD Seismic Certification and IBC Wind Snow Load Compliant condensers shall be provided with any applicable bracing and field installation instructions Condensers shall bear a label certifying compliance with IBC OSHPD requirements 2 17 2 Drycooler The Liebert drycooler is a low profile direct drive propeller fan type air cooled fluid cooling unit The drycooler shall be constructed with an aluminum cabinet and a copper tube aluminum fin
223. with standard filter 59 Liebert CRV Liebert CRV Water Glycol Systems Table 28 Performance data Water cooled 600mm 24in Model CRO35RW 83 F 28 33 C EWT 85 F 29 4 C EWT Return Air Temperature 95 F 35 C LWT 110 F 43 3 C Cond Temp 105 F DB 71 F WB 40 6 C DB 21 6 C WB 17 RH Total KBTU H KW 152 3 44 6 150 3 44 0 Sensible KBTU H kW 152 3 44 6 150 3 44 Flow Rate GPM l s 30 1 1 9 23 5 1 48 Pressure Drop ft water kPa 66 8 199 6 41 2 123 2 Heat Rejection KBTU H kW 180 2 52 8 179 6 52 6 100 F DB 69 5 F WB 37 8 C DB 20 8 C WB 20 RH Total KBTU H kW 147 2 43 1 144 7 42 4 Sensible KBTU H kW 144 5 42 3 143 1 41 9 Flow Rate GPM l s 29 2 1 85 22 5 1 42 Pressure Drop ft water kPa 63 1 188 5 37 8 113 Heat Rejection KBTU H kW 175 0 51 3 174 1 51 95 F DB 67 9 F WB 35 C DB 19 9 C WB 23 RH Total KBTU H kW 142 9 41 9 140 2 41 1 Sensible KBTU H kW 135 6 39 8 134 4 39 4 Flow Rate GPM l s 29 8 1 8 21 5 1 35 Pressure Drop ft water kPa 60 0 179 2 34 6 103 3 Heat Rejection KBTU H kW 170 7 50 169 5 49 7 90 F DB 66 2 F WB 32 2 C DB 19 0 C WB 27 RH Total KBTU H kW 138 7 40 7 135 9 39 8 Sensible KBTU H kW 126 6 37 1 125 3 36 7 Flow Rate GPM l s 27 8 1 75 20 3 1 28 Pr
224. wn clips The LT500Y shall be plenum rated and UL listed for safe operation Cables shall be available in lengths of 20 25 30 35 and 45 feet 6 7 6 9 10 6 and 13 7m Liebert CRV 150 Guide Specifications Row Based Environmental Control System 2 17 Heat Rejection 2 17 1 Air Cooled Microchannel Condenser 2 17 1 1 Standard Features The condenser shall consist of microchannel condenser coil s propeller fan s direct driven by individual fan motor s electrical controls housing and mounting legs The Liebert air cooled condenser shall provide positive refrigerant head pressure control to the indoor cooling unit by adjusting heat rejection capacity Microchannel coils shall provide superior heat transfer reduce air side pressure drop increase energy efficiency and shall significantly reduce the system refrigerant volume required EC fans and fan operating techniques shall provide reduced maximum sound levels Various methods shall be available to match indoor unit type maximum outdoor design ambient and maximum sound requirements 2 17 1 2 Condenser Coil 2 17 1 2 1 Aluminum Microchannel Coil Liebert microchannel coils shall be constructed of aluminum microchannel tubes fins and manifolds Tubes shall be flat and contain multiple parallel flow microchannels and span between aluminum headers Full depth louvered aluminum fins shall fill spaces between the tubes Tubes fins and aluminum headers shall be oven brazed to for
225. ystems HTTP for web page viewing SMTP for e mail and SMS for mobile messaging This card can support dual IP and 485 protocols simultaneous Filter The optional filters are two deep pleated 2 inch rated MERV8 based on ASHRAE 52 2 2007 located within the cabinet and accessible from the rear of the unit A filter clog alarm is included One 1 Extra Common Alarm Contact Provides two sets of normally open N O contacts for remote indication of unit alarms Liebert Liqui tect Sensor A solid state water sensor hermetically sealed to keep out dust and dirt When the sensor detects the presence of moisture the alarm system is activated Liebert CRV 114 Liebert CRV Intended Application APPENDIX A LIEBERT CRV INTENDED APPLICATION The Liebert CRV can be applied in virtually any application Since the unit provides complete temperature and humidity control along with filtration it can be deployed as the only cooling unit in smaller data centers and network closets Larger data centers are able to benefit from its standard rack sized footprint deploying it as a supplemental spot cooler to address both hot spots and high density racks The small footprint and variable cooling and airflow allow the unit to be initially oversized in anticipation of future IT expansion with minimal footprint or energy consumption penalties The unit can be applied on both raised and non raised floors allowing it work with existing under floor a

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