Home

Liebert PEX Technical Data Manual

1. DOWN FLOW FG FAN DOWN FLOW EC FAN 18 Technical Data Manual 0 Li eb e rt Liebert PEX Large Frame Design Model configurations Water Cooled with Dual Cool Units EC Fan FC Fan Hectnc Heater Electric Heater Dual Cool Cod Cual Cool Cod IF Humidifier IR Hurmdifier gt gt UP FLOW FG FAN UP FLOW EG FAN Air Filter Dual Cool Coil da Electric Heater A Compressor pr me ei se IR Humidifier r pinis y 1 aa Chiller rS i e Rased Floor Eee dn EE i n i ad oa hate ater sheer DOWN FLOW FG FAN DOWN FLOW EG FAN w Liebert OO etic Data Manual 1 19 Design Liebert PEX Large Frame Model configurations Free Cool Units UP FLOW FG FAN UP FLOW EG FAN Ho or at ed dn ee DOWN FLOW FG FAN 20 Technical Data Manual 0 Li eb e rt Liebert PEX Large Frame Technical Data Upflow DX Scroll compressors FC fans Air Water Cooled 50Hz Model Size PEX 1020 1025 1030 1035 2035 2045 2055 2040 2050 2060 2070 3070 3080 3090 3100 Rated Capacity 24 C DB 50 RH 45 Condensing Total kW 19 4 22 1 29 2 32 4 36 5 44 4 52 0 39 5 45 7 57 9 65 9 71 8 79 4 87 2 97 9 Sensible kW 18 3 20 7 25 9 28 0 34 8 40 7 46 1 37 2 42 0 51 6 56 3 66 2 69 2 77 5 83 9 Rated Capacity 24 C DB 45 RH 45 Condensing Total kW 19 3 21 9 28 1 31 8 36 5 42 9 49 7 39 5 44 5 56 4 63 5 70 0 76 7 83 5 96 5 Sensible kW 19 1 21 7 27 4 29 9 36 2 42 6 48 8 39 2 44 2 55 1 59 7 69 5 73 5 82 2 89 9 Air
2. Chilled Water amp Water Cooled F Free Cool Technical Data Manual 5 7 Installation Guidelines Liebert PEX Large Frame Unit Dimensions amp Service Access Refer Table PEX Large Frame Upflow Unit EC Backward Curve Fans FOR DUCTED APPLICATIONS Model Dimensions in mm tA ACTA DY A a VA A Air Cooled W Water Cooled 1020 e G Glycol Cooled 1025 D Dual Cool Chilled Water amp Air Cooled 1030 H Dual Cool Chilled Water amp Water Cooled 1035 F Free Cool 2035 2045 2055 2040 2050 2060 2070 3070 3080 3090 3100 5 8 Technical Data Manual lO Liebert Liebert PEX Large Frame af gt Ja HA Da Installation Guidelines Q _ a N q a we 7 I AP ma Xs AE z Z oy Gussels required with wag YW G S higher than 400mm OVERALL 892 WITHICOM OVERALL 841 WITHOUT HINGE W Liebert OVERALL 873 WITHOUT ICOM FLOORSTAND Optional OVERALL 858 5 WITHOUT DOOR r DETAIL A TOP VIEW Technical Data Manual 5 9 Liebert PEX Large Frame Installation Guidelines Standard 600mm height Low ceiling 7 400mm Standard 600mm height Low ceiling option 400mm standard 600mm height Low calling option 400mm W Liebert Technical Data Manual IO Emerson Network Power The global leader in enabling Business Critical Continuity fl AC Power fl Embedded Computing fl Connectivity M Embedded Power fl Outside Plant fil Power Swit
3. A humidifier shall be factory installed inside the unit Bypass air shall be used to enable moisture to be absorbed into the bypass airstream without condensation The humidifier capacity shall be kg hr lb hr The humidifier shall be serviceable and removable from the front of the unit Infrared Humidifier The humidifier shall be of the infrared type consisting of high intensity quartz lamps mounted above and out of the water supply The humidifier pan shall be stainless steel and arranged to be removeable without disconnecting high voltage electrical connections The complete humidifier section shall be pre piped ready for field connection to water supply The humidifier shall be equipped with an automatic water supply system and shall have an adjustable water overfeed to prevent mineral precipitation A high water detector shall shut down the humidifier to prevent overflowing Full capacity operation shall be achieved within 10 sec from cold start ELECTRIC HEATING Electric heating shall be provided in a single stage The elements shall be low watt density 304 304 stainless steel fin tubular construction protected by thermal safety switches The heating system shall include dual safety protection through loss of air and manual reset high temperature controls and GCD protected Optional 2nd Stage Electric Heating Electric heating shall be provided in two equal stages The elements shall be low watt density 304 304 stainless steel fin tubu
4. kg 350 360 370 380 600 610 630 650 670 700 720 970 990 1030 1050 Unit Footprint Unit only m 0 74 0 74 0 74 0 74 1 49 1 49 1 49 1 49 1 49 1 49 1 49 2 23 2 23 2 23 2 23 Incl Service area m 1 47 1 47 1 47 1 47 2 93 2 93 2 93 2 93 2 93 2 93 2 93 4 40 4 40 4 40 4 40 Service Access min mm 850 Notes I All rated capacities are nominal values based on an ESP for Downflow 20pa and for Upflow 50Pa at sea level for R407C amp R22 For net capacities deduct fan input power Refer to the Liebert PEX Rating Program for specific input conditions air flow and configuration 2 Minimum unit depth without front panels and hinges is 841 mm WVeights shown are for water cooled DX models only 3 Input power supply 400V 15 50Hz 2 RFLA is for the standard configuration unit only and excludes all heat rejection equipment Chillers and Pumps etc RFLA based on standard unit Refer to Liebert PEX Rating Program amp User Manual for electrical data on optional equipment 4 All information and Technical Data are subject to change without notice 0 Liebert Technical Data Manual 2 13 Technical Data Liebert PEX Large Frame Downflow DX Scroll compressors EC fans Air Water Cooled 50Hz Model Size PEX 1020 1025 1030 1035 2035 2045 2055 2040 2050 2060 2070 3070 3080 3090 3100 Rated Capacity 24 C DB 50 RH 45 Condensing Total KW 20 3 23 2 30 4 33 2 37 0 45 8 540 41 3 47 2 60 9 67 0 74 0 82 7 898 100 0 Sensible kW 20 1 22 6 28 2 30 4 352 44 6
5. time and date stamp for each event Graphic Data View Two graphic records shall be available return air temperature and return air humidity 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 accumulative component operating hours for major components including compressors fan motor humidifier and reheat Display Setup Customer shall pre select the desired grouping of display languages at the time of the order from the following choices English French Italian Spanish German Portugese Russian Chech and Chinese t liebert Tenia Bato Manual 5 Guide Specifications Liebert PEX Large Frame Service Contacts Menu shall allow display of local service contact details Service Menus Shall be Defined as Follows Setpoints Menu shall allow setpoints within the following ranges e Temperature Setpoint 18 29 C e Temperature Sensitivity 0 6 5 6 C e Humidity Setpoint 20 80 RH e Humidity Sensitivity 30 RH e High Temperature Alarm 2 32 C Low Temperature Alarm 2 32 C e High Humidity Alarm 15 85 RH e Low Humidity Alarm 15 85 RH The 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 emergenc
6. 0 74 6 78 5 89 0 89 5 79 2 79 6 75 0 80 8 74 9 80 0 78 4 78 7 78 4 78 7 25 000 25 170 3 3 2 3 3 1 6 6 2 2 10 10 10 10 12 12 24 24 3 3 67 2 76 9 2 2 2 2 DN25 DN25 4 6 48 87 83 42 42 2 2 42 42 2 2 19 19 1 2 1 2 2553 2553 873 873 990 1030 2 23 2 23 4 40 4 40 Technical Data Manual Technical Data Notes Liebert PEX Large Frame Upflow Digital Scroll Compressors EC fans Free Cool 50Hz Model Size PEX 1020 1025 1030 2035 2040 2050 2060 3070 Rated Capacity 24 C DB 50 RH 54 C Condensing CW Based on 7 C EWT 12 C LWT and Glycol 30 DX Total kW 19 2 21 6 24 4 34 3 38 1 43 3 49 5 69 0 Sensible kW 19 0 21 4 24 1 34 0 37 8 43 0 49 1 68 5 Free Cool Total kW 233 25 7 26 2 44 5 47 8 54 0 57 8 84 8 Sensible kW 21 0 23 2 23 9 36 8 39 9 46 4 50 4 74 7 Rated Capacity 24 C DB 45 RH 54 C Condensing CW Based on 7 C EWT 12 C LWT and Glycol 30 DX Total kW 19 1 21 5 24 3 34 1 38 0 43 2 47 0 68 7 Sensible kW 19 1 21 5 24 2 34 0 37 9 43 1 46 9 68 6 Free Cool Total kW 20 8 22 9 23 6 39 3 42 1 48 0 50 8 74 4 Sensible kW 20 8 22 9 23 6 36 1 39 3 45 8 49 8 73 9 Air Flow m h 6 500 7 500 7 800 10 000 11 200 13 800 15 500 23 000 Evaporator Fan Backward curve EC motor direct drive No of fan assemblies 2 2 2 2 3 Std Motor kW 2 3 2 3 3 1 2 3 2 3 2 3 3 1 2 3 Dual Cool DX Evaporator amp Chilled Water Coil Copper tubes with rifled bore tubes louvred aluminium fins No of rows 6 6 6 6 6 6 6 6 Fin series FPM
7. 2 Valve Size DN25 DN25 DN25 DN25 DN25 DN32 DN25 DN25 DN25 DN25 DN25 DN25 Flow l s LI 1 2 1 5 1 9 2 4 2 7 2 1 2 4 3 0 3 8 4 3 4 5 PD kPa 50 63 72 67 83 73 51 64 73 65 82 76 Unit Connections Hot Gas O D 22 22 22 22 22 22 22 22 22 22 22 22 Qty 2 2 2 2 2 2 Liquid O D 16 16 16 16 16 16 16 16 16 16 16 16 Qty 2 2 2 2 2 2 Condenser Water Supply I D 35 35 35 35 35 35 35 35 35 42 42 42 Qty 2 2 2 2 2 2 Condenser Water Return O D 35 35 35 35 35 35 35 35 35 42 42 42 Qty 2 2 2 2 2 2 CW Supply I D 25 25 25 35 35 35 35 35 35 42 42 42 CW Return O D 25 25 25 35 35 35 35 35 35 42 42 42 Drain Barb mm 19 19 19 19 19 19 19 19 19 19 19 19 Hum Supply BSP M 1 2 1 2 1 2 1 2 1 2 1 2 1 2 1 2 1 2 1 2 1 2 1 2 Unit Dimensions amp Weight Width mm 853 853 853 1703 1703 1703 1703 1703 1703 2553 2553 2553 Depth mm 873 873 873 873 873 873 873 873 873 873 873 873 Height mm 1970 Unit Weight kg 350 360 370 600 610 630 650 670 700 970 990 1030 Unit Footprint Unit only m 0 74 0 74 0 74 1 49 1 49 1 49 1 49 1 49 1 49 2 23 2 23 2 23 Incl Service area m 1 47 1 47 1 47 2 93 2 93 2 93 2 93 2 93 2 93 4 40 4 40 4 40 Service Access min mm 850 All rated capacities are nominal values based on an ESP for Downflow 20pa and for Upflow 50Pa at sea level for R407C amp R22 For net capacities deduct fan input power Refer to the Liebert PEX Rating Program for specific input conditions ai
8. 2 2 2 DN25 DN25 DN25 DN32 4 1 4 6 49 5 6 7 87 90 7 35 35 35 35 2 2 2 2 35 35 35 35 2 2 2 2 19 19 19 19 1 2 1 2 1 2 1 2 2553 2553 2553 2553 873 873 873 873 970 990 1030 1050 2 23 2 23 2 23 2 23 4 40 4 40 4 40 4 40 I All rated capacities are nominal values based on an ESP for Downflow 20pa and for Upflow 50Pa at sea level for R407C amp R22 For net capacities deduct fan input power Refer to the Liebert PEX Rating Program for specific input conditions air flow and configuration 2 Minimum unit depth without front panels and hinges is 841mm Minimum raised floor height 325mm for EC fan units Weights shown are for water cooled DX models only 3 Input power supply 400V 15 50Hz 2 RFLA is for the standard configuration unit only and excludes all heat rejection equipment Chillers and Pumps etc RFLA based on standard unit Refer to Liebert PEX Rating Program amp User Manual for electrical data on optional equipment 4 All information and Technical Data are subject to change without notice 5 The Liebert PEX units are now also available with EC Fans The switching action of the EC Fan power controls may interact with emergency backup generators or UPS systems W Liebert Technical Data Manual 2 5 Technical Data Upflow DX Digital Scroll Compressors EC fans Model Size PEX 1020 1025 1030 1035 2035 2040 Rated Capacity 24 C DB 50 RH 45 C Condensing Total kW 19 2 21 6 25 4 30 4 34 3 38 1
9. 2 2 3 3 3 3 Std Motor kW 2 3 2 3 3 1 23 2 3 2 3 2 3 2 3 3 1 3 1 2 3 2 3 3 1 3 1 Free Cool DX Evaporator amp Chilled Water Coil Copper tubes with rifled bore tubes louvred aluminium fins No of rows 6 6 6 6 6 6 6 6 6 7 6 6 6 7 Fin series FPM FPI max 550 14 Compressor Copeland Compliant Scroll with Crankase Heater No of compressors 2 2 2 2 2 2 2 2 Unit cooling steps 2 via HGBP 2 via Compressors Safety controls kPa LP cut out in auto reset 140 420 HP cut out manual reset 2800 Humidification Control Infrared kg h 4 5 4 5 4 5 10 10 10 10 10 10 10 10 10 10 10 Opt Electrode kg h 5 5 5 10 10 10 10 10 10 10 10 10 10 10 Dehumidification control Variable EC fan speed Reheat Single stage electric heater elements I stage kW 6 6 6 9 9 9 9 9 9 9 12 12 12 12 Opt 2 stage kW 12 12 12 18 18 18 18 18 18 18 24 24 24 24 Filter Metal Frame Deep V dry media disposable G4 type filter Nominal VW x D x H mm 800 x 800 x 100 Qty 2 2 2 2 2 2 2 3 3 3 3 Electrical 400V 50Hz 3Phase Std DX unit only RFLA 22 7 24 8 31 3 40 0 45 8 53 4 39 4 43 6 56 6 60 4 61 4 67 2 76 9 86 9 Water Cooled Condenser 316SS Brazed Plate Heat Exchanger 3 Way MBV No of Condensers 2 2 2 2 2 2 2 2 No of MBV 2 2 2 2 2 2 2 2 Valve Size DN25 DN25 DN25 DN25 DN25 DN32 DN25 DN25 DN25 DN25 DN25 DN25 DN25 DN32 Flow l s l l 1 3 1 6 2 0 2 5 2 9 2 2 2 6 3 3 4 1 4 6 4 8 5 7 PD kPa 48 62 56 70 94 76 48 6l 56 70 87 86 73 Unit C
10. 25 8 42 2 47 0 50 4 44 2 48 7 55 7 73 5 73 5 81 4 Sensible kW 19 9 22 2 25 8 38 6 44 1 48 0 40 8 45 9 54 1 70 8 70 8 80 2 Air Flow m h 5 400 6 300 7 870 9 720 11 610 13 030 10 440 12 240 15 390 19 190 19 190 22 770 Evaporator Fan Forward curve FC centrifugal fan induction motor auto tensioning belt drive No of fan assemblies 2 2 2 2 2 2 3 3 3 Std Motor kW 2 2 2 2 3 0 2 2 2 2 2 2 2 2 2 2 3 0 2 2 2 2 3 0 Evaporator Coil Copper tubes with rifled bore tubes louvred aluminium fins No of rows 6 6 6 6 6 6 6 6 6 6 6 6 Fin series FPM FPI 550 14 Compressor Copeland Compliant Scroll with Crankase Heater No of compressors l 2 2 2 2 2 2 Unit cooling steps 2 via HGBP Safety controls kPa LP cut out in auto reset 140 420 HP cut out manual reset 2800 Humidification Control Infrared kg h 4 5 4 5 4 5 10 10 10 10 10 10 10 10 10 Opt Electrode kg h 5 5 5 10 10 10 10 10 10 10 10 10 Dehumidification control Standard HVAC dehumidification methology utilised Reheat Single stage electric heater elements I stage kW 6 6 6 9 9 9 9 9 9 12 12 12 Opt 2 stage kW 12 12 12 18 18 18 18 18 18 24 24 24 Filter Metal Frame Deep V dry media disposable G4 type filter Nominal W x D x H mm Qty 2 2 2 2 2 2 3 3 3 Full Load Current 400 Volts 3 phase N E 50 Hz Supply Std DX unit only RFLA 24 0 26 1 33 1 42 6 48 4 53 4 42 0 46 2 60 2 65 3 71 1 82 3 Water Cooled Condenser 316SS Brazed Plate Heat Exchanger 3 Way MBV
11. 26 3 38 6 45 1 48 8 41 6 47 0 54 9 54 4 72 0 72 0 81 3 81 4 Rated Capacity 24 C DB 45 RH 45 Condensing CW Based on 7 C EWT 12 C LWT DX Total kW 19 7 22 4 28 8 36 6 44 0 51 6 40 4 45 6 58 2 64 6 72 4 78 6 85 5 97 9 Sensible kW 19 5 22 2 28 I 36 3 43 6 50 5 40 1 45 2 56 7 62 7 71 8 75 6 84 3 94 5 CW Total kW 20 9 23 1 26 7 42 6 48 7 52 0 45 7 50 2 56 9 56 4 75 8 75 8 83 1 83 6 Sensible kW 20 6 23 1 26 7 39 2 45 9 49 8 42 3 47 8 56 1 55 7 73 4 73 4 83 1 83 1 Air Flow m h 5 670 6 660 8 280 9 900 12 240 13 680 10 980 12 960 16 200 16 020 20 160 20 160 23 940 23 760 Evaporator Fan Forward curve FC centrifugal fan induction motor auto tensioning belt drive No of fan assemblies 2 2 2 2 2 2 2 3 3 3 3 Std Motor kW 2 2 2 2 3 0 2 2 2 2 2 2 2 2 2 2 3 0 3 0 2 2 2 2 3 0 3 0 Evaporator Coil Copper tubes with rifled bore tubes louvred aluminium fins No of rows 6 6 6 6 6 6 6 6 6 7 6 6 6 7 Fin series FPM FPI 550 14 Compressor Copeland Compliant Scroll with Crankase Heater No of compressors 2 2 2 2 2 2 2 2 Unit cooling steps 2 via HGBP 2 via Compressors Safety controls kPa LP cut out in auto reset 140 420 HP cut out manual reset 2800 Humidification Control Infrared kg h 4 5 4 5 4 5 10 10 10 10 10 10 10 10 10 10 10 Opt Electrode kg h 5 5 5 10 10 10 10 10 10 10 10 10 10 10 Dehumidification control Standard HVAC dehumidification methology utilised Reheat Single stage electric heater elements I stage kW
12. 53 1 392 44 9 57 4 62 4 72 4 78 4 86 1 92 8 Rated Capacity 24 C DB 45 RH 45 Condensing Total KW 20 2 23 1 29 5 32 3 36 8 45 5 537 409 46 6 59 9 65 8 73 4 81 5 89 3 98 0 Sensible kW 20 1 22 9 29 3 32 1 36 5 45 0 532 40 6 46 3 59 4 65 3 72 7 80 9 88 7 97 2 Air Flow mh 6 500 7 500 8 300 8500 10 000 14 000 16 000 11 200 13 800 17 000 17 600 23 000 25 000 25 500 25 800 Evaporator Fan Backward curve EC motor direct drive No of fan assemblies 2 2 2 2 2 2 2 3 3 3 3 Std Motor kW 2 3 2 3 3 1 3 1 2 3 2 3 2 3 2 3 2 3 3 1 3 1 2 3 23 3 1 3 1 Evaporator Coil Copper tubes with rifled bore tubes louvred aluminium fins No of rows 3 3 4 4 3 3 4 3 3 4 4 3 3 4 4 Fin series FPM FPI 550 14 Compressor Copeland Compliant Scroll with Crankase Heater No of compressors 2 2 2 2 2 2 2 2 Unit cooling steps 2 via HGBP 2 via Compressors Safety controls kPa LP cut out in auto reset 140 420 HP cut out manual reset 2800 Humidification Control Infrared kg h 4 5 4 5 4 5 4 5 10 10 10 10 10 10 10 10 10 10 10 Opt Electrode kg h 5 5 5 5 10 10 10 10 10 10 10 10 10 10 10 Dehumidification control Variable air flow Reheat Single stage electric heater elements I stage kW 6 6 6 6 9 9 9 9 9 9 9 12 12 12 12 Opt 2 stage kW 12 12 12 12 18 18 18 18 18 18 18 24 24 24 24 Filter Metal Frame Deep V dry media disposable G4 type filter Nominal W x D x H mm 800 x 600 x 100 Qty 2 2 2 2 2 2 2 3 3 3 3 Full Load Current 40
13. 7 25 0 25 8 39 5 42 9 50 I 54 4 80 7 Air Flow m h 6 500 7 500 7 800 10 000 11 200 13 800 15 500 23 000 Evaporator Fan Backward curve EC motor direct drive No of fan assemblies 3 Std Motor kW 2 3 2 3 2 3 2 3 2 3 2 3 2 3 2 3 Dual Cool DX Evaporator amp Chilled Water Coil Copper tubes with rifled bore tubes louvred aluminium fins No of rows 6 6 6 6 6 6 6 6 Fin series FPM FPI 550 14 Compressor Copeland Compliant Scroll with Crankase Heater No of compressors 2 2 2 2 Unit cooling steps Variable Safety controls kPa LP cut out in auto reset 140 420 HP cut out manual reset 2800 Humidification Control Infrared kg h 4 5 4 5 45 10 10 10 10 10 Opt Electrode kg h 5 5 5 10 10 10 10 10 Dehumidification control Reduced air flow Reheat Single stage electric heater elements I stage kW 6 6 6 9 9 9 9 12 Opt 2 stage kW 12 12 12 18 18 18 18 24 Filter Metal Frame Deep V dry media disposable G4 type filter Nominal W x D x H mm 800 x 660 x 100 Qty 2 2 2 p 3 Full Load Current 400 Volts 3 phase N E 50 Hz Supply Std DX unit only RFLA 23 4 24 8 30 4 40 0 40 8 43 6 54 8 61 4 Water Cooled Condenser 316SS Brazed Plate Heat Exchanger 3 Way MBV Opt 2 Way MBV No of Condensers l l l l l 2 2 No of MBV 2 2 Valve Size DN25 DN25 DN25 DN25 DN25 DN32 DN25 DN25 Flow I s I I 1 2 1 4 1 9 2 1 2 4 2 8 3 8 PD kPa 50 63 60 67 51 64 6l 65 Unit Connections Hot Gas O D 22 22 22 22
14. 873 Dual Cool Height kg 1970 2070 Unit Weight kg 350 360 370 600 650 670 700 720 Unit Footprint Unit only m 0 74 0 74 0 74 1 49 1 49 1 49 1 49 1 49 Incl Service area m 1 47 1 47 1 47 2 93 2 93 2 93 2 93 2 93 Service Access min mm 850 Notes I All rated capacities are nominal values based on an ESP for Downflow 20pa and for Upflow 50Pa at sea level for R407C amp R22 For net capacities deduct fan input power Refer to the Liebert PEX Rating Program for specific input conditions air flow and configuration 2 Minimum unit depth without front panels and hinges is 841mm Minimum raised floor height 325mm for EC fan units Weights shown are for water cooled DX models only 3 Input power supply 400V 15 50Hz 2 RFLA is for the standard configuration unit only and excludes all heat rejection equipment Chillers and Pumps etc RFLA based on standard unit Refer to Liebert PEX Rating Program amp User Manual for electrical data on optional equipment 4 All information and Technical Data are subject to change without notice 5 The Liebert PEX units are now also available with EC Fans The switching action of the EC Fan power controls may interact with emergency backup generators or UPS systems ay Li eb ert Technical Data Manual Technical Data 50Hz 3070 74 0 72 4 92 6 79 0 73 4 72 7 81 3 80 7 23 000 2 3 10 10 12 24 61 4 2 2 DN25 3 8 66 22 2 16 2 35 2 35 2 35 35 19 1
15. BSP M 1 2 1 2 1 2 1 2 1 2 1 2 1 2 1 2 1 2 Unit Dimensions amp Weight Width mm 853 853 853 1703 1703 1703 1703 1703 2553 Depth mm 873 873 873 873 873 873 873 873 873 Height mm 1970 2070 1970 Unit Weight kg 350 360 370 600 650 670 700 720 970 Unit Footprint Unit only m 0 74 0 74 0 74 1 49 1 49 1 49 1 49 1 49 2 23 Incl Service area m 1 47 1 47 1 47 2 93 2 93 2 93 2 93 2 93 4 40 Service Access min mm 850 Notes I All rated capacities are nominal values based on an ESP for Downflow 20pa and for Upflow 50Pa at sea level for R407C amp R22 For net capacities deduct fan input power Refer to the Liebert PEX Rating Program for specific input conditions air flow and configuration 2 Minimum unit depth without front panels and hinges is 841mm Minimum raised floor height 325mm for EC fan units Weights shown are for water cooled DX models only 3 Input power supply 400V 15 50Hz 2 RFLA is for the standard configuration unit only and excludes all heat rejection equipment Chillers and Pumps etc RFLA based on standard unit Refer to Liebert PEX Rating Program amp User Manual for electrical data on optional equipment 4 All information and Technical Data are subject to change without notice 5 The Liebert PEX units are now also available with EC Fans The switching action of the EC Fan power controls may interact with emergency backup generators or UPS systems 2 24 TechnicolDot Momol ao tiebert Liebert PEX
16. Evaporator amp Chilled Water Coil Copper tubes with rifled bore tubes louvred aluminium fins No of rows 6 6 6 6 6 6 6 6 6 Fin series FPM FPI max 550 14 Compressor Copeland Compliant Scroll with Crankase Heater No of compressors 2 2 2 2 2 Unit cooling steps Variable Safety controls kPa LP cut out in auto reset 140 420 HP cut out manual reset 2800 Humidification Control Variable EC fan speed Digital Scroll Compressor amp Humidifier Infrared kg h 45 4 5 4 5 10 10 10 10 10 10 Opt Electrode kg h 5 5 5 10 10 10 10 10 10 Dehumidification control Variable EC fan speed Reheat Single stage electric heater elements I stage kW 6 6 6 9 9 9 9 9 12 Opt 2 stage kW 12 12 12 18 18 18 18 18 24 Filter Metal Frame Deep V dry media disposable G4 type filter Nominal W x D x H mm 800 x 660 x 100 Qty 2 2 2 2 2 3 Electrical 400V 50Hz 3Phase Std DX unit only RFLA 23 4 24 8 30 4 40 0 40 8 43 6 54 8 60 4 61 4 Water Cooled Condenser 316SS Brazed Plate Heat Exchanger 3 Way MBV No of Condensers l l l l 2 2 2 2 2 No of MBV 2 2 2 2 2 Valve Size DN25 DN25 DN25 DN25 DN25 DN25 DN25 DN25 DN25 Flow I s I I 1 3 1 6 2 0 2 2 2 6 3 3 3 8 4 1 PD kPa 48 62 56 70 48 61 56 62 70 Unit Connections Condenser Water Supply I D 35 35 35 35 35 35 35 35 42 Qty 2 2 2 2 2 Condenser Water Return O D 35 35 35 35 35 35 35 35 42 Qty 2 2 2 2 2 Drain Barb mm 19 19 19 19 19 19 19 19 19 Hum Supply
17. Filter Metal Frame Deep V dry media disposable G4 type filter Nominal W x D x H mm 800 x 800 x 100 Qty 2 2 2 2 2 2 2 3 3 3 3 Full Load Current 400 Volts 3 phase N E 50 Hz Supply Std DX unit only RFLA 240 26 1 33 1 35 0 426 484 534 420 462 60 2 64 0 65 3 71 1 82 3 92 3 Water Cooled Condenser 316SS Brazed Plate Heat Exchanger 3 Way MBV Opt 2 Way MBV No of Condensers 2 2 2 2 2 2 2 2 No of MBV 2 2 2 2 2 2 2 2 Valve Size DN25 DN25 DN25 DN25 DN25 DN25 DN32 DN25 DN25 DN25 DN25 DN25 DN25 DN25 DN32 Flow l s l l 1 2 1 6 1 8 1 9 2 4 2 8 2 2 2 5 3 2 3 6 3 8 4 3 4 7 5 4 PD kPa 49 64 80 57 67 84 78 51 65 80 58 65 8l 83 71 Unit Connections Hot Gas O D 22 22 22 22 22 22 22 22 22 22 22 22 22 22 22 Qty l l l l l 2 2 2 2 2 2 2 2 Liquid O D 16 16 16 16 16 16 16 16 16 16 16 16 16 16 16 Qty 2 2 2 2 2 2 2 2 Condenser Water Supply I D 35 35 35 35 35 35 35 35 35 35 35 35 35 35 35 Qty l l 2 2 2 2 2 2 2 2 Condenser Water Return O D 35 35 35 35 35 35 35 35 35 35 35 35 35 35 35 Qty 2 2 2 2 2 2 2 2 Drain Barb mm 19 19 19 19 19 19 19 19 19 19 19 19 19 19 19 Hum Supply BSP M 1 2 1 2 1 2 1 2 1 2 1 2 1 2 1 2 1 2 1 2 1 2 1 2 1 2 1 2 1 2 Unit Dimensions amp Weight Width mm 853 853 853 853 1703 1703 1703 1703 1703 1703 1703 2553 2553 2553 2553 Depth mm 873 873 873 873 873 873 873 873 873 873 873 873 873 873 873 Height mm 1970 Unit Weight
18. Flow m h 5 400 6 300 7 870 7920 9 720 11 610 13 030 10 440 12 240 15 390 15480 19 190 19 190 22 770 22 860 Evaporator Fan Forward curve FC centrifugal fan induction motor auto tensioning belt drive No of fan assemblies 2 2 2 2 2 2 2 3 3 3 3 Std Motor kW 2 2 2 2 3 0 3 0 2 2 2 2 2 2 2 2 2 2 3 0 3 0 2 2 2 2 3 0 3 0 Evaporator Coil Copper tubes with rifled bore tubes louvred aluminium fins No of rows 3 3 3 4 3 3 3 3 3 4 4 3 3 3 4 Fin series FPM FPI 550 14 Compressor Copeland Compliant Scroll with Crankase Heater No of compressors 2 2 2 2 2 2 2 2 Unit cooling steps 2 via HGBP 2 via Compressors Safety controls kPa LP cut out in auto reset 140 420 HP cut out manual reset 2800 Humidification Control Infrared kg h 4 5 4 5 4 5 4 5 10 10 10 10 10 10 10 10 10 10 10 Opt Electrode kg h 5 5 5 5 10 10 10 10 10 10 10 10 10 10 10 Dehumidification control Partialised Coil Split Suction Solenoid Control Reheat Single stage electric heater elements I stage kW 6 6 6 6 9 9 9 9 9 9 9 12 12 12 12 Opt 2 stage kW 12 12 12 12 18 18 18 18 18 18 18 24 24 24 24 Filter Metal Frame Deep V dry media disposable G4 type filter Nominal W x D x H mm 800 x 660 x 100 Qty 2 2 2 2 2 2 2 3 3 3 3 Full Load Current 400 Volts 3 phase N E 50 Hz Supply Std DX unit only RFLA 24 0 26 1 33 1 35 0 426 484 534 42 0 46 2 60 2 64 0 65 3 71 1 82 3 92 3 Water Cooled Condenser 316SS Brazed Plate Heat Exchanger 3 Way
19. I l I I I L Operating Standby Humidifier ON Unit to Unit Configuration Teamwork Mode A Frame or V Frame Evaporator Coils e High efficiency heat exchanger design features an A Frame coil for downflow and V Frame coil for upflow for precise control of cooling and dehumidification designed to optimise heat transfer and minimise air side pressure drop Draw through design pulls air evenly through the large face area cooling coil to maximise heat transfer efficiency e Double angle condensate trays ensure correct water drainage L A EN BNI VP We 44 v NOV LF A Frame Coil V Frame Coil Down Flow Up Flow High Sensible Heat Ratio SHR e All models operate high sensible heat ratios to match the low latent loads of modern computer rooms and telephone exchanges etc e With low latent capacity little moisture is removed from the air so that humidity levels can be maintained without extra humidification thereby ensuring lower energy consumption High Airflow e High airflow achieves favourable sensible heat ratios and provides maximum air change rate to ensure variations in room load are quickly detected and responded to 1 4 Teche Dato Maniol ktebert Liebert PEX Large Frame Design Features and Benefits DX Systems Dehumidification Cycle FC Fans e Compressorised models with forward curve FC fans employ split coil configurations allowing latent cooling capacity to be substantially increased bu
20. Large Frame ICOM Control System The Liebert iCOM control system featured on the Liebert PEX brings high level supervision to multiple units allowing them to work together as a single system to optimise room performance The Liebert iCOM control system offers a variety of advantages The Large Graphic Display features a 128x64 dot matrix backlit screen Advanced monitoring can be achieved with the addition of the Optional Wall Mounted Display Intelligent Communications and Monitoring e Saves Energy using Predictive Humidity Control e Built in Lead Lag Functions for enhanced system reliability e Wellness Calculation alerts service personnel before problems occur e Unit to Unit U2U Communications allows Lead Lag and optional teamwork settings for maximum flexibility and control e Optional IntelliSlot cards offer external monitoring through Modbus RTU and HTTP SNMP protocols The optional Wall Mounted Large Graphic Display provides centralised monitoring and control of connected Liebert PEX units Liebert IntelliSlot cards can provide Liebert SiteScan Web and BMS systems with the capability to monitor your Liebert PEX unit Technical Data Manual 3 0 Liebert ICOM Control System Liebert PEX Large Frame Additional Views Available with Large Graphic Displays e System View Allows you to see the average operation of the system or all units that are working together in Unit to Unit U2U Communications mode for
21. MBV No of Condensers 2 2 2 2 2 No of MBV 2 2 2 2 2 Valve Size DN25 DN25 DN25 DN25 DN25 DN25 DN25 DN25 DN25 DN25 Flow l s l l 1 2 1 4 1 8 1 9 2 2 2 5 2 9 3 6 3 8 PD kPa 49 65 66 58 67 51 65 66 59 66 Unit Connections Hot Gas O D 22 22 22 22 22 22 22 22 22 22 Qty 2 2 2 2 2 Liquid O D 16 16 16 16 16 16 16 16 16 16 Qty 2 2 2 2 2 Condenser Water Supply I D 35 35 35 35 35 35 35 35 35 35 Qty 2 2 2 2 2 Condenser Water Return O D 35 35 35 35 35 35 35 35 35 35 Qty 2 2 2 2 2 Drain Barb mm 19 19 19 19 19 19 19 19 19 19 Hum Supply BSP M 1 2 1 2 1 2 1 2 1 2 1 2 1 2 1 2 1 2 1 2 Unit Dimensions amp Weight Width mm 853 853 853 853 1703 1703 1703 1703 1703 2553 Depth mm 873 873 873 873 873 873 873 873 873 873 Height mm 1970 Unit Weight kg 350 360 370 380 600 650 670 700 720 970 Unit Footprint Unit only m 0 74 0 74 0 74 0 74 1 49 1 49 1 49 1 49 1 49 2 23 Incl Service area m 1 47 1 47 1 47 1 47 2 93 2 93 2 93 2 93 2 93 4 40 Service Access min mm 850 Notes All rated capacities are nominal values based on an ESP for Downflow 20pa and for Upflow 50Pa at sea level for R407C amp R22 For net capacities deduct fan input power Refer to the Liebert PEX Rating Program for specific input conditions air flow and configuration 2 Minimum unit depth without front panels and hinges is 841mm Minimum raised floor height 325mm for EC fan units
22. and Technical Data are subject to change without notice 5 The Liebert PEX units are now also available with EC Fans The switching action of the EC Fan power controls may interact with emergency backup generators or UPS systems 2 20 TechncolDota Mood Liebert PEX Large Frame Downflow Digital Scroll Compressors EC fans Dual Cool Model Size PEX 1020 1025 1030 2035 2040 2050 2060 2070 Rated Capacity 24 C DB 50 RH 45 Condensing CW Based on 7 C EWT 12 C LWT DX Total kW 20 3 23 2 27 4 37 0 41 3 47 2 55 6 67 0 Sensible kW 20 1 22 6 25 1 35 2 39 2 44 9 51 2 62 4 CW Total kW 25 7 28 0 28 7 48 6 522 59 0 63 1 67 3 Sensible kW 22 2 24 6 25 3 38 9 42 2 49 1 53 3 58 1 Rated Capacity 24 C DB 45 RH 45 Condensing CW Based on 7 C EWT I2CLWT DX Total kW 20 2 23 1 26 4 36 8 40 9 46 6 53 8 65 8 Sensible kW 20 1 22 9 26 2 36 5 40 6 46 3 53 4 65 3 CW Total kW 22 7 25 0 25 8 42 9 46 0 52 4 55 5 59 7 Sensible kW 22 7 25 0 25 8 39 5 42 9 50 I 54 4 59 5 Air Flow m3 h 6 500 7 500 7 800 10 000 11 200 13 800 15 500 17 600 Evaporator Fan Backward curve EC motor direct drive No of fan assemblies 2 2 2 2 2 Std Motor kW 2 3 2 3 3 1 2 3 2 3 2 3 3 1 3 1 Dual Cool DX Evaporator amp Chilled Water Coil Copper tubes with rifled bore tubes louvred aluminium fins No of rows 6 6 6 6 6 6 6 7 Fin series FPM FPI 550 14 Compressor Copeland Compliant Scroll with Crankase Heater No of compressors 2 2 2 2 Unit cooling steps Variab
23. deduct fan input power Refer to the Liebert PEX Rating Program for specific input conditions air flow and configuration 2 Minimum unit depth without front panels and hinges is 841mm Weights shown are for water cooled DX models only 3 Input power supply 400V 15 50Hz 2 RFLA is for the standard configuration unit only and excludes all heat rejection equipment Chillers and Pumps etc RFLA based on standard unit Refer to Liebert PEX Rating Program amp User Manual for electrical data on optional equipment 4 All information and Technical Data are subject to change without notice fo Lieber t Technical Data Manual 2 7 Technical Data Liebert PEX Large Frame Upflow DX Scroll compressors EC fans Air WateCooled Dual Cool 50Hz Model Size PEX 1020 1025 1030 2035 2045 2055 2040 2050 2060 3070 3080 3090 Rated Capacity 24 C DB 50 RH 45 Condensing CW Based on 7 C EWT 12 C LWT DX Total kW 19 9 22 4 29 3 36 6 44 5 52 2 40 7 45 8 59 3 71 9 80 0 87 5 Sensible kW 19 8 22 3 26 6 35 0 44 2 50 5 39 0 44 6 54 9 71 4 77 8 81 9 CW Total kW 25 7 28 0 29 4 48 6 59 7 63 5 52 2 59 0 66 92 6 97 2 97 8 Sensible kW 222 24 6 26 3 38 9 49 6 54 4 42 2 49 1 56 7 79 0 83 8 84 2 Rated Capacity 24 C DB 45 RH 45 Condensing CW Based on 7 C EWT 12 C LWT DX Total kW 19 8 22 3 28 3 36 3 44 4 49 9 40 4 45 5 58 0 71 8 78 9 86 I Sensible kW 19 7 22 2 28 1 36 1 44 2 49 8 40 1 45 0 57 6 71 5 78 1 85 4 CW Total kW 22 7 25 0 26 8 42 9 52 5 56 3 46 0 5
24. electronics must be maintained in a stable environment of 20 C to 25 C with a relative humidity of 40 to 55 Precision air conditioning systems must not only keep room conditions within this range they must have the precision to react quickly to fluctuations in heat load and prevent wide temperature fluctuations Liebert PEX units are specifically developed for applications requiring close environmental control e Data Centres e Telecom CATV e Computer Rooms e Labs and Test Rooms e Network Centres e Production Facilities The Liebert PEX Advantage Only the Liebert PEX can give you all these advantages e Comprehensive local support Full pre sales and post sales support is readily available anytime you need it e Customisation expertise Liebert PEX units can be customised to suit your requirements with expertise and assistance from local Engineering teams e Full Service capability Factory trained Customer Service Engineers provide backup support 24 x 365 e Established company Emerson Network Power has been designing and manufacturing precision environmental control systems for over 45 years Technical Data Manual Liebert Design Liebert PEX Large Frame Liebert PEX Large Frame Downflow unit Downflow models available with e FC Forward Curve fans e EC Backward Curve fans with in floor operation which is the optimum position for energy efficient performance e The fans are serviceable and removable fro
25. for a wide range of water quality e Fail safe operation electrodes will not function without water e Water vapour introduced into coil bypass air avoids condensation e Fully serviceable cylinder bottle ensures quick and cost effective maintenance Electric Heaters e Single stage electric reheat system 2nd stage optional with integral safeties e 304 stainless steel low watt density fin tubular elements e Protected by Ground Current Detector e Standard Reheat Humidifier lockout reduces power requirements during emergency power operation e Heater sub assemblies are replaceable from the front of the unit Stainess Steel Electric Heaters Assembly Choice of Refrigerants All compressorised models are designed to operate on either HFC R407C refrigerants or HCFC R22 All Digital Compressor models are available with HFC R407C Footprint amp Serviceability e High kW to footprint ratio e Front accessible for installation and routine servicing e Front doors are hinged and removeable offering improved service access to the unit internals e Compressors water cooled condensers and filter driers employ rotalock connections for ease of removal i e no hot works e Front withdrawable air filters allow downflow units to be connected to return air ductwork 35kW Liebert PEX Competitor 1 Competitor 2 Unit Footprint Including Service Access m Design Liebert PEX Large Frame Filtration The metal framed filter panels are an i
26. humidification high intensity quartz infrared lamps provide fast responsive energy efficient humidification Full capacity achieved in 5 6 seconds therefore no wasted overshoot and energy waste Particle free water vapour introduced into coil bypass air avoids condensation Autoflush cycle helps remove mineral deposits Cleanable stainless steel humidifier pan e Will operate effectively using almost any water quality Bypass i Grams of Air Flow Kap Infrared Humidifier Operation Why is Bypass Air Introduction Important From a psychrometric standpoint return air at 24 C 45 RH has more than 5 times the capacity to absorb steam compared to air at 14 C 80 RH that has already been cooled by the evaporator and is now close to saturation The capacity of this cool air to absorb water vapour is limited and can result in water condensing within the air unit and surrounding areas Bypass air introduction of water vapour is a more efficient method of humidification In Liebert PEX units both standard infrared amp optional steam electrode humidifiers operate in the Bypass Air Bypass Air IR Humidifier A Frame Coil Downflow Unit 2 Technical Data Manual WLLL or en pure moisture 14 24 IR Humidifier V Frame Coil Upflow Unit 0 Liebert Liebert PEX Large Frame Design Features and Benefits Electrode Humidifier Optional Direct acting electrode design suitable
27. on an ESP for Downflow 20pa and for Upflow 50Pa at sea level for R407C amp R22 For net capacities deduct fan input power Refer to the Liebert PEX Rating Program for specific input conditions air flow and configuration 2 Minimum unit depth without front panels and hinges is 84 Imm VVeights shown are for water cooled DX models only 3 Input power supply 400V 15 50Hz 2 RFLA is for the standard configuration unit only and excludes all heat rejection equipment Chillers and Pumps etc RFLA based on standard unit Refer to Liebert PEX Rating Program amp User Manual for electrical data on optional equipment 4 All information and Technical Data are subject to change without notice 0 Liebert Technical Data Manual 2 1 Technical Data Liebert PEX Large Frame Upflow DX Scroll compressors EC fans Air Water Cooled 50Hz Model Size PEX 1020 1025 1030 1035 2035 2045 2055 2040 2050 2060 2070 3070 3080 3090 3100 Rated Capacity 24 C DB 50 RH 45 Condensing Total kW 19 9 22 4 29 5 32 8 36 6 44 5 53 3 407 458 59 5 66 3 71 9 80 0 88 0 98 7 Sensible kW 19 8 22 3 28 0 29 4 35 0 44 2 52 9 39 0 44 6 57 1 60 2 71 4 77 8 85 2 88 9 Rated Capacity 24 C DB 45 RH 45 Condensing Total kW 19 8 22 3 29 2 31 4 36 3 44 4 53 1 404 45 5 59 1 64 1 71 8 78 9 87 8 94 9 Sensible kW 19 7 22 2 28 9 31 2 36 1 44 2 53 0 40 1 45 0 58 7 63 7 71 5 78 1 87 2 94 2 Air Flow mh 6 500 7 500 8 300 8500 10 000 14 000 16 000 11 200 13 800 17 000 17 480 23 000 25
28. only and excludes all heat rejection equipment Chillers and Pumps etc RFLA based on standard unit Refer to Liebert PEX Rating Program amp User Manual for electrical data on optional equipment 4 Al information and Technical Data are subject to change without notice 2 16 TechniolDot Mamol ma tiebert Liebert PEX Large Frame Technical Data Downflow DX Scroll compressors EC fans Glycol Cooled 50Hz Model Size PEX 1020 1025 1030 1035 2035 2045 2055 2040 2050 2060 2070 3070 3080 3090 3100 Rated Capacity 24 C DB 50 RH 45 Condensing Total kW 19 6 22 1 28 3 316 344 434 51 5 38 3 43 9 566 63 2 704 764 83 9 917 Sensible kW 19 5 21 9 274 294 34 1 43 0 51 1 38 0 436 55 7 604 698 758 832 89 5 Rated Capacity 24 C DB 45 RH 45 Condensing Total kW 19 5 22 0 28 3 308 342 43 2 51 3 382 438 564 626 702 762 837 91 5 Sensible kW 19 4 21 9 28 1 30 5 34 1 43 1 512 38 1 43 7 56 1 622 70 0 760 835 91 3 Air Flow m h 6 500 7 500 8 300 8500 10 000 14 000 16 000 11 200 13 800 17 000 17 600 23 000 25 000 25 500 25 800 Evaporator Fan Backward curve EC motor direct drive No of fan assemblies 2 2 2 2 2 2 2 3 3 3 3 Std Motor kW 2 3 2 3 3 1 3 1 2 3 2 3 2 3 2 3 2 3 3 1 3 1 2 3 2 3 3 1 3 1 Evaporator Coil Copper tubes with rifled bore tubes louvred aluminium fins No of rows 3 3 4 4 3 3 4 3 3 4 4 3 3 4 4 Fin series FPM FPI max 550 14 Compressor Copeland Compliant Scroll with Crankase Heater No of compressors 2 2 2 2 2 2
29. operation of units in opposite modes multiple units Auxiliary Boards Menu shall allow setup of optional expansion boards Diagnostics Service Mode Control input and output values and status shall be displayed to aid in unit diagnostics and troubleshooting 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 Each control output shall be indicated by an LED on a circuit board Advanced Menus Factory Settings Configuration settings shall be factory set based on the pre defined component operation UNIT OPTIONS iCOM Microprocessor Control With LARGE Graphic Display The iCOM unit control with large graphic display shall include all of the features as the iCOM with small graphic display except that it includes a larger graphical display and shall include the additional features of System View Spare Parts List Unit Diary The iCOM control processor shall be microprocessor based with a 320x240 dot matrix graphic front monitor display panel and control keys for user inputs mounted in an ergonomic aesthetically pleasing housing 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 Unit Diary Menu shall include a free field area within the unit memory where unit history may be stored for refe
30. 0 160 20 160 10 10 64 0 2 2 DN25 3 8 62 35 2 35 2 19 1 2 1703 873 2070 720 1 49 2 93 3070 66 6 65 3 79 0 68 66 6 66 5 69 4 67 2 3 2 2 2 2 via Compressors LP cut out in auto reset 140 420 HP cut out manual reset 2800 10 10 12 24 65 3 DN25 4 0 67 42 42 19 1 2 2553 873 970 2 23 4 40 3080 74 5 68 4 79 0 68 73 4 72 8 69 4 67 2 3 22 10 10 12 24 71 1 DN25 4 5 85 42 42 19 1 2 2553 873 1970 990 2 23 4 40 Liebert PEX Large Frame 50Hz 3090 3100 82 6 91 9 76 9 85 I 86 7 87 3 76 8 76 9 80 7 90 5 80 0 89 8 76 0 76 6 76 0 76 1 23 940 23 760 3 3 3 0 3 0 6 7 2 2 10 10 10 10 12 12 24 24 3 3 82 3 92 3 2 2 2 2 DN25 DN32 48 5 7 85 72 42 42 2 2 42 42 2 2 19 19 1 2 1 2 2553 2553 873 873 2070 1030 1050 2 23 2 23 4 40 4 40 All rated capacities are nominal values based on an ESP for Downflow 20pa and for Upflow 50Pa at sea level for R407C amp R22 For net capacities deduct fan input power Refer to the Liebert PEX Rating Program for specific input conditions air flow and configuration 2 Minimum unit depth without front panels and hinges is 841 mm Weights shown are for water cooled DX models only 3 Input power supply 400V 15 50Hz 2 RFLA is for the standard configuration unit only and excludes all heat rejection equipment Chillers and Pumps etc RFLA based on stan
31. 0 Volts 3 phase N E 50 Hz Supply Std DX unit only RFLA 22 7 248 31 3 332 400 45 8 534 394 436 56 6 60 4 614 67 2 769 869 Water Cooled Condenser 316SS Brazed Plate Heat Exchanger 3 Way MBV Opt 2 Way MBV No of Condensers l l l l l 2 2 2 2 2 2 2 2 No of MBV l l l l 2 2 2 2 2 2 2 2 Valve Size DN25 DN25 DN25 DN25 DN25 DN25 DN32 DN25 DN25 DN25 DN25 DN25 DN25 DN25 DN32 Flow l s l l 1 2 1 6 1 8 1 9 2 4 2 8 2 2 2 5 3 2 3 6 3 8 4 4 4 8 5 4 PD kPa 49 65 80 58 67 85 78 5I 65 8l 59 66 84 83 72 Unit Connections Hot Gas O D 22 22 22 22 22 22 22 22 22 22 22 22 22 22 22 Qty l l l l 2 2 2 2 2 2 2 2 Liquid O D 16 16 16 16 16 16 16 16 16 16 16 16 16 16 16 Qty l 2 2 2 2 2 2 2 2 Condenser Water Supply I D 35 35 35 35 35 35 35 35 35 35 35 35 35 35 35 Qty 2 2 2 2 2 2 2 2 Condenser Water Return O D 35 35 35 35 35 35 35 35 35 35 35 35 35 35 35 Qty 2 2 2 2 2 2 2 2 Drain Barb mm 19 19 19 19 19 19 19 19 19 19 19 19 19 19 19 Hum Supply BSP M 1 2 1 2 1 2 1 2 1 2 1 2 1 2 1 2 1 2 1 2 1 2 1 2 1 2 1 2 1 2 Unit Dimensions amp Weight Width mm 853 853 853 853 1703 1703 1703 1703 1703 1703 1703 2553 2553 2553 2553 Depth mm 873 873 873 873 873 873 873 873 873 873 873 873 873 873 873 Height mm 1970 Unit Weight kg 350 360 370 380 600 610 630 650 670 700 720 970 990 1030 1050 Unit Footprint Unit only m 0 74 0 74 0 74 0 74 1 49 1 49 1 49 1 49 1 49 1 49 1 49 2 23 2 23 2
32. 000 25 170 25 170 Evaporator Fan Backward curve EC motor direct drive No of fan assemblies 2 2 2 2 2 2 2 3 3 3 3 Std Motor kW 2 3 2 3 3 1 3 1 2 3 2 3 2 3 2 3 2 3 3 1 3 1 2 3 23 3 1 3 1 Evaporator Coil Copper tubes with rifled bore tubes louvred aluminium fins No of rows 3 3 4 4 3 3 4 3 3 4 4 3 3 4 4 Fin series FPM FPI max 550 14 Compressor Copeland Compliant Scroll with Crankase Heater No of compressors 2 2 2 2 2 2 2 2 Unit cooling steps 2 via HGBP 2 via Compressors Safety controls kPa LP cut out in auto reset 140 420 HP cut out manual reset 2800 Humidification Control Infrared kg h 4 5 4 5 4 5 4 5 10 10 10 10 10 10 10 10 10 10 10 Opt Electrode kg h 5 5 5 5 10 10 10 10 10 10 10 10 10 10 10 Dehumidification control Reduced air flow Reheat Single stage electric heater elements I stage kW 6 6 6 6 9 9 9 12 12 12 12 Opt 2 stage kW 12 12 12 12 18 18 18 18 18 18 18 24 24 24 24 Filter Metal Frame Deep V dry media disposable G4 type filter Nominal W x D x H mm 800 x 660 x 100 Qty 2 2 2 2 2 2 2 3 3 3 3 Full Load Current 400 Volts 3 phase N E 50 Hz Supply Std DX unit only RFLA 22 7 248 31 3 332 400 45 8 534 394 436 56 6 60 4 614 67 2 769 869 Water Cooled Condenser 316SS Brazed Plate Heat Exchanger 3 Way MBV Opt 2 Way MBV No of Condensers l l l l l 2 2 2 2 2 2 2 2 No of MBV l l l l 2 2 2 2 2 2 2 2 Valve Size DN25 DN25 DN25 DN25 DN25 DN25 DN32 DN25 DN25 DN2
33. 19 19 19 19 19 19 19 19 Hum Supply BSP M 1 2 1 2 1 2 1 2 1 2 1 2 1 2 1 2 1 2 1 2 1 2 1 2 1 2 1 2 1 2 Unit Dimensions amp Weight Width mm 853 853 853 853 1703 1703 1703 1703 1703 1703 1703 2553 2553 2553 2553 Depth mm 873 873 873 873 873 873 873 873 873 873 873 873 873 873 873 Height mm 1970 Unit Weight kg 350 360 370 380 600 610 630 650 670 700 720 970 990 1030 1050 Unit Footprint Unit only m 0 74 0 74 0 74 074 1 49 1 49 1 49 1 49 1 49 1 49 149 223 2 23 223 223 Incl Service area m 1 47 1 47 1 47 147 2 93 293 2 93 293 293 293 293 440 440 440 4 40 Service Access min mm 850 Notes All rated capacities are nominal values based on an ESP for Downflow 20pa and for Upflow 50Pa at sea level for R407C amp R22 For net capacities deduct fan input power Refer to the Liebert PEX Rating Program for specific input conditions air flow and configuration 2 Minimum unit depth without front panels and hinges is 841mm Minimum raised floor height 325mm for EC fan units Weights shown are for water cooled DX models only 3 Input power supply 400V 15 50Hz 2 RFLA is for the standard configuration unit only and excludes all heat rejection equipment Chillers and Pumps etc RFLA based on standard unit Refer to Liebert PEX Rating Program amp User Manual for electrical data on optional equipment 4 All information and Technical Data are subject to change without notice 5 The Liebert PEX units are now also availabl
34. 2 2553 873 1970 970 2 23 4 40 2 2 1 Technical Data Downflow DX Scroll Compressors FC fans Free Cool Model Size PEX 1020 1025 1030 2035 2045 2055 2040 2050 2060 2070 Rated Capacity 24 C DB 50 RH 54 Condensing CW Based on 7 C EWT 12 C LWT and Glycol 30 DX Total kW 18 2 21 5 28 3 34 2 41 3 48 7 37 0 42 9 56 1 63 0 Sensible kW 18 1 20 8 25 8 34 0 40 3 45 6 36 8 41 8 51 6 57 5 Free Cool Total kW 21 8 24 0 26 9 44 1 50 2 53 6 47 0 52 2 58 8 58 2 SensiblekW 19 1 21 4 24 9 36 5 42 6 46 1 39 4 44 4 51 9 51 5 Rated Capacity 24 C DB 45 RH 54 Condensing CW Based on 7 C EWT 12 C LWT and Glycol 30 DX Total kW 18 2 21 5 27 0 34 2 42 7 48 5 37 0 42 9 54 6 60 9 Sensible kW 18 2 21 4 26 7 34 0 41 2 48 1 36 9 42 8 542 60 4 Free Cool Total kW 19 2 21 1 24 5 39 0 44 6 47 6 41 8 45 9 52 1 51 6 Sensible kV 18 8 21 1 24 5 35 8 42 0 45 5 38 8 43 8 51 4 50 9 Air Flow m h 5 670 6 660 8 280 9 900 12 240 13 680 10 980 12 960 16 200 Evaporator Fan Forward curve FC centrifugal fan induction motor auto tensioning belt drive No of fan assemblies 2 2 2 2 2 2 2 Std Motor kW 2 2 2 2 3 0 2 2 2 2 2 2 2 2 2 2 3 0 3 0 Evaporator Coil Copper tubes with rifled bore tubes louvred aluminium fins No of rows 6 6 6 6 6 6 6 6 6 7 Fin series FPM FPI 550 14 Compressor Copeland Compliant Scroll with Crankase Heater No of compressors 2 2 2 2 Unit cooling steps 2 via HGBP Safety controls kPa Humidification Control In
35. 2 2 Unit cooling steps 2 via HGBP 2 via Compressors Safety controls kPa LP cut out in auto reset 140 420 HP cut out manual reset 2800 Humidification Control Infrared kg h 4 5 4 5 4 5 4 5 10 10 10 10 10 10 10 10 10 10 10 Opt Electrode kg h 5 5 5 5 10 10 10 10 10 10 10 10 10 10 10 Dehumidification control Partialised Coil Split Suction Solenoid Control Reheat Single stage electric heater elements stage kW 6 6 6 6 9 9 9 9 9 9 9 12 12 12 12 Opt 2 stage kW 12 12 12 12 18 18 18 18 18 18 18 24 24 24 24 Filter Metal Frame Deep V dry media disposable G4 type filter Nominal W x D x H mm 800 x 800 x 100 Qty 2 2 2 2 2 2 2 3 3 3 3 Full Load Current 400 Volts 3 phase N E 50 Hz Supply Std DX unit only RFLA 22 7 24 8 31 3 332 400 45 8 53 4 39 4 43 6 56 6 604 61 4 672 76 9 86 9 Water Cooled Condenser 316SS Brazed Plate Heat Exchanger 3 Way MBV Opt 2 Way MBV No of Condensers l 2 2 2 2 2 2 2 2 No of MBV l l 2 2 2 2 2 2 2 2 Valve Size DN25 DN25 DN25 DN25 DN25 DN25 DN32 DN25 DN25 DN25 DN25 DN25 DN25 DN25 DN32 30 EG v v Flow l s I I 1 3 1 7 1 9 2 0 2 5 3 0 2 2 2 6 3 3 3 8 4 1 4 6 5 0 5 7 PD kPa 48 62 59 60 70 94 8l 48 6l 58 62 70 87 91 73 Unit Connections Supply I D 35 35 35 35 35 35 35 35 35 35 35 35 35 35 35 Qty l l l l 2 2 2 2 2 2 2 2 Return O D 35 35 35 35 35 35 35 35 35 35 35 35 35 35 35 Qty 2 2 2 2 2 2 2 2 Drain Barb mm 19 19 19 19 19 19 19
36. 2 4 58 6 81 3 85 7 85 9 Sensible kW 22 7 25 0 26 8 39 5 50 6 55 6 42 9 50 1 58 1 80 7 85 7 85 9 Air Flow m h 6 500 7 500 8 300 10 000 14 000 16 000 11 200 13 800 17 000 23 000 25 000 25 170 Evaporator Fan Backward curve EC motor drive No of fan assemblies 2 2 2 2 2 2 3 3 3 Std Motor kW 2 3 2 3 3 1 2 3 2 3 2 3 2 3 2 3 3 1 2 3 23 3 1 Evaporator Coil Copper tubes with rifled bore tubes louvred aluminium fins No of rows 6 6 6 6 6 6 6 6 6 6 6 6 Fin series FPM FPI 550 14 Compressor Copeland Compliant Scroll with Crankase Heater No of compressors 2 2 2 2 2 2 Unit cooling steps 2 via HGBP 2 via Compressors Safety controls kPa LP cut out in auto reset 140 420 HP cut out manual reset 2800 Humidification Control Infrared kg h 4 5 4 5 4 5 10 10 10 10 10 10 10 10 10 Opt Electrode kg h 5 5 5 10 10 10 10 10 10 10 10 10 Dehumidification control Reduced air flow Reheat Single stage electric heater elements I stage kW 6 6 6 9 9 9 9 9 9 12 12 12 Opt 2 stage kW 12 12 12 18 18 18 18 18 18 24 24 24 Filter Metal Frame Deep V dry media disposable G4 type filter Nominal W x D x H mm Qty 2 2 2 2 2 2 3 3 3 Full Load Current 400 Volts 3 phase N E 50 Hz Supply Std DX unit only RFLA 22 7 24 8 31 3 40 0 45 8 53 4 39 4 43 6 56 6 61 4 67 2 76 9 Water Cooled Condenser 316SS Brazed Plate Heat Exchanger 3 Way MBV Opt 2 Way MBV No of Condensers l l l l 2 2 2 2 2 2 No of MBV l 2 2 2 2 2
37. 2 6 26 4 30 4 35 2 39 2 44 9 52 8 62 4 72 4 Rated Capacity 24 C DB 45 RH 45 Condensing Total kW 20 2 23 1 27 3 32 3 36 8 40 9 46 6 54 9 65 8 73 4 Sensible kW 20 1 229 27 1 32 1 36 5 40 6 46 3 54 5 65 3 72 7 Air Flow m h 6 500 7 500 7 800 8 500 10 000 11 200 13 800 15 500 17 600 23 000 Evaporator Fan Backward Curve EC motor direct drive No of fan assemblies 2 2 2 2 2 3 Std Motor kW 2 3 2 3 3 1 3 1 2 3 2 3 23 3 1 3 1 2 3 Evaporator Coil Copper tubes with rifled bore tubes louvred aluminium fins No of rows 3 3 4 4 3 3 3 4 4 3 Fin series FPM FPI max 550 14 Compressor Copeland Compliant Scroll with Crankase Heater No of compressors 2 2 2 2 2 Unit cooling steps Variable Safety controls kPa LP cut out in auto reset 140 420 HP cut out manual reset 2800 Humidification Control Variable EC fan speed Digital Scroll compressor amp Humidifier Infrared kg h 4 5 4 5 4 5 4 5 10 10 10 10 10 10 Opt Electrode kg h 5 5 5 5 10 10 10 10 10 10 Dehumidification control Reduced air flow Reheat Single stage electric heater elements I stage kW 6 6 6 6 9 12 Opt 2 stage kW 12 12 12 12 18 18 18 18 18 24 Filter Metal Frame Deep V dry media disposable G4 type filter Nominal W x D x H mm 800 x 800 x 100 Qty 2 2 2 2 2 3 Electrical 400V 50Hz 3Phase Std DX unit only RFLA 23 4 24 8 30 4 33 2 40 0 40 8 43 6 54 8 60 4 61 4 Water Cooled Condenser 316SS Brazed Plate Heat Exchanger 3 Way MBV Opt 2 Way
38. 22 22 22 22 Qty 2 2 2 2 Liquid O D 16 16 16 16 16 16 16 16 Qty 2 2 2 2 Condenser Water Supply I D 35 35 35 35 35 35 35 35 Qty 2 2 2 3 Condenser Vater Return O D 35 35 35 35 35 35 35 35 Qty 2 2 2 3 CW Supply I D 25 25 25 35 35 35 35 35 CW Return O D 25 25 25 35 35 35 35 35 Drain Barb mm 19 19 19 19 19 19 19 19 Hum Supply BSP M 1 2 1 2 1 2 1 2 1 2 1 2 1 2 1 2 Unit Dimensions amp Weight Width mm 853 853 853 1703 1703 1703 1703 2553 Depth mm 873 873 873 873 873 873 873 873 Height mm 1970 Unit Weight kg 350 360 370 600 650 670 700 970 Unit Footprint Unit only m 0 74 0 74 0 74 1 49 1 49 1 49 1 49 2 23 Incl Service area m 1 47 1 47 1 47 2 93 293 2 93 2 93 4 40 Service Access min mm 850 All rated capacities are nominal values based on an ESP for Downflow 20pa and for Upflow 50Pa at sea level for R407C amp R22 For net capacities deduct fan input power Refer to the Liebert PEX Rating Program for specific input conditions air flow and configuration 2 Minimum unit depth without front panels and hinges is 841mm Minimum raised floor height 325mm for EC fan units Weights shown are for water cooled DX models only 3 Input power supply 400V 15 50Hz 2 RFLA is for the standard configuration unit only and excludes all heat rejection equipment Chillers and Pumps etc RFLA based on standard unit Refer to Liebert PEX Rating Program amp User Manual for electr
39. 23 2 23 Incl Service area m 1 47 1 47 1 47 1 47 2 93 2 93 2 93 2 93 2 93 2 93 2 93 4 40 4 40 4 40 4 40 Service Access min mm 850 Notes All rated capacities are nominal values based on an ESP for Downflow 20pa and for Upflow 50Pa at sea level for R407C amp R22 For net capacities deduct fan input power Refer to the Liebert PEX Rating Program for specific input conditions air flow and configuration 2 Minimum unit depth without front panels and hinges is 841mm Minimum raised floor height 325mm for EC fan units WVeights shown are for water cooled DX models only 3 Input power supply 400V 15 50Hz 2 RFLA is for the standard configuration unit only and excludes all heat rejection equipment Chillers and Pumps etc RFLA based on standard unit Refer to Liebert PEX Rating Program amp User Manual for electrical data on optional equipment 4 All information and Technical Data are subject to change without notice 5 The Liebert PEX units are now also available with EC Fans The switching action of the EC Fan power controls may interact with emergency backup generators or UPS systems 2 14 Technical Data Manual W Liebert Liebert PEX Large Frame Technical Data Downflow Digital Scroll Compressors EC fans Air Water Cooled 50Hz Model Size PEX 1020 1025 1030 1035 2035 2040 2050 2060 2070 3070 Rated Capacity 24 C DB 50 RH 45 Condensing Total kW 20 3 23 2 27 6 33 2 37 0 41 3 47 2 55 1 67 0 74 0 Sensible kW 20 1 2
40. 3 1 7 1 9 2 0 2 5 2 9 2 2 2 6 3 3 3 8 4 0 4 5 4 9 5 7 PD kPa 46 6l 59 60 69 89 77 47 60 58 62 67 85 88 72 Unit Connections Glycol Supply I D 35 35 35 35 35 35 35 35 35 35 35 35 35 35 35 Qty l l 2 2 2 2 2 2 2 2 Glycol Return O D 35 35 35 35 35 35 35 35 35 35 35 35 35 35 35 Qty 2 2 2 2 2 2 2 2 Drain Barb mm 19 19 19 19 19 19 19 19 19 19 19 19 19 19 19 Hum Supply BSP M 1 2 1 2 1 2 1 2 1 2 1 2 1 2 1 2 1 2 1 2 1 2 1 2 1 2 1 2 1 2 Unit Dimensions amp Weight Width mm 853 853 853 853 1703 1703 1703 1703 1703 1703 1703 2553 2553 2553 2553 Depth mm 873 873 873 873 873 873 873 873 873 873 873 873 873 873 873 Height mm 1970 Unit Weight kg 350 360 370 380 600 610 630 650 670 700 720 970 990 1030 1050 Unit Footprint Unit only m 0 74 0 74 0 74 074 1 49 1 49 1 49 1 49 1 49 1 49 149 223 223 223 2 23 Incl Service area m 1 47 1 47 1 47 147 293 293 2 93 293 293 293 293 440 440 440 4 40 Service Access min mm 850 Notes I All rated capacities are nominal values based on an ESP for Downflow 20pa and for Upflow 50Pa at sea level for R407C amp R22 For net capacities deduct fan input power Refer to the Liebert PEX Rating Program for specific input conditions air flow and configuration 2 Minimum unit depth without front panels and hinges is 84 mm VVeights shown are for water cooled DX models only 3 Input power supply 400V 15 50Hz 2 RFLA is for the standard configuration unit
41. 3 1703 1703 1703 1703 1703 1703 2553 2553 2553 2553 Depth mm 873 873 873 873 873 873 873 873 873 873 873 873 873 873 Height mm 1970 2070 1970 2070 Unit Weight kg 350 360 370 600 610 630 650 670 700 720 970 990 1030 1050 Unit Footprint Unit only m 0 74 0 74 0 74 1 49 1 49 1 49 1 49 1 49 1 49 1 49 2 23 2 23 2 23 2 23 Incl Service area m 1 47 1 47 1 47 2 93 2 93 2 93 2 93 2 93 2 93 2 93 4 40 4 40 4 40 4 40 Service Access min mm 850 Notes I All rated capacities are nominal values based on an ESP for Downflow 20pa and for Upflow 50Pa at sea level for R407C amp R22 For net capacities deduct fan input power Refer to the Liebert PEX Rating Program for specific input conditions air flow and configuration 2 Minimum unit depth without front panels and hinges is 84 mm VVeights shown are for water cooled DX models only 3 Input power supply 400V 15 50Hz 2 RFLA is for the standard configuration unit only and excludes all heat rejection equipment Chillers and Pumps etc RFLA based on standard unit Refer to Liebert PEX Rating Program amp User Manual for electrical data on optional equipment 4 Al information and Technical Data are subject to change without notice lie enka Daa Mana 2 19 Technical Data Liebert PEX Large Frame Downflow DX Scroll compressors EC fans Air Water Cooled Dual Cool 50Hz Model Size PEX 1020 1025 1030 2035 2045 2055 2040 2050 2060 2070 3070 3080 3090 3100 Rated Capacity 24 C DB 50 RH 4
42. 35 35 35 35 35 35 35 35 42 42 42 Qty 2 2 2 2 2 2 Glycol Return O D 35 35 35 35 35 35 35 35 35 42 42 42 Qty 2 2 2 2 2 2 Drain Barb mm 19 19 19 19 19 19 19 19 19 19 19 19 Hum Supply BSP M 1 2 1 2 1 2 1 2 1 2 1 2 1 2 1 2 1 2 1 2 1 2 1 2 Unit Dimensions amp Weight Width mm 853 853 853 1703 1703 1703 1703 1703 1703 2553 2553 2553 Depth mm 873 873 873 873 873 873 873 873 873 873 873 873 Height mm 1970 Unit Weight kg 350 360 370 600 610 630 650 670 700 970 990 1030 Unit Footprint Unit only m 0 74 0 74 0 74 1 49 1 49 1 49 1 49 1 49 1 49 2 23 2 23 2 23 Incl Service area m 1 47 1 47 1 47 2 93 2 93 2 93 2 93 2 93 2 93 4 40 4 40 4 40 Service Access min mm 850 Notes All rated capacities are nominal values based on an ESP for Downflow 20pa and for Upflow 50Pa at sea level for R407C amp R22 For net capacities deduct fan input power Refer to the Liebert PEX Rating Program for specific input conditions air flow and configuration 2 Minimum unit depth without front panels and hinges is 84 Imm VVeights shown are for water cooled DX models only 3 Input power supply 400V 15 50Hz 2 RFLA is for the standard configuration unit only and excludes all heat rejection equipment Chillers and Pumps etc RFLA based on standard unit Refer to Liebert PEX Rating Program amp User Manual for electrical data on optional equipment 4 All information and Technical Data are subject to change wi
43. 41 0 46 4 60 6 66 9 73 9 81 4 89 3 100 0 Sensible kW 18 9 21 5 26 6 29 4 35 1 41 7 47 3 38 5 43 2 53 5 59 0 68 2 71 1 79 6 88 4 Rated Capacity 24 C DB 45 RH 45 Condensing Total kW 19 7 22 4 28 8 31 8 36 6 44 0 51 6 404 45 6 58 2 64 6 72 4 78 6 85 5 97 9 Sensible kW 19 5 22 2 28 1 31 2 36 3 43 6 50 5 40 1 45 2 56 7 62 7 71 8 75 6 84 3 94 5 Air Flow m h 5 670 6 660 8 280 8 190 9 900 12 240 13 680 10 980 12 960 16 200 16 020 20 160 20 160 23 940 23 760 Evaporator Fan Forward curve FC centrifugal fan induction motor auto tensioning belt drive No of fan assemblies 2 2 2 2 2 2 2 3 3 3 3 Std Motor kW 22 2 2 3 0 3 0 2 2 2 2 2 2 2 2 2 2 3 0 3 0 2 2 2 2 3 0 3 0 Evaporator Coil Copper tubes with rifled bore tubes louvred aluminium fins No of rows 3 3 3 4 3 3 3 3 3 4 4 3 3 3 4 Fin series FPM FPI 550 14 Compressor Copeland Compliant Scroll with Crankase Heater No of compressors 2 2 2 2 2 2 2 2 Unit cooling steps 2 via HGBP 2 via Compressors Safety controls kPa LP cut out in auto reset 140 420 HP cut out manual reset 2800 Humidification Control Infrared kg h 4 5 4 5 4 5 4 5 10 10 10 10 10 10 10 10 10 10 10 Opt Electrode kg h 5 5 5 5 10 10 10 10 10 10 10 10 10 10 10 Dehumidification control Partialised Coil Split Suction Solenoid Control Reheat Single stage electric heater elements I stage kW 6 6 6 6 9 9 9 9 9 9 9 12 12 12 12 Opt 2 stage kW 12 12 12 12 18 18 18 18 18 18 18 24 24 24 24
44. 42 42 42 CW Return O D 25 25 25 35 35 35 35 35 35 35 42 42 42 42 Drain Barb mm 19 19 19 19 19 19 19 19 19 19 19 19 19 19 Hum Supply BSP M 1 2 1 2 1 2 1 2 1 2 1 2 1 2 1 2 1 2 1 2 1 2 1 2 1 2 1 2 Unit Dimensions amp Weight Width mm 853 853 853 1703 1703 1703 1703 1703 1703 1703 2553 2553 2553 2553 Depth mm 873 873 873 873 873 873 873 873 873 873 873 873 873 873 Height mm 1970 2070 1970 2070 Unit Weight kg 350 360 370 600 610 630 650 670 700 720 970 990 1030 1050 Unit Footprint Unit only m 0 74 0 74 0 74 1 49 1 49 1 49 1 49 1 49 1 49 1 49 2 23 2 23 2 23 2 23 Incl Service area m 1 47 1 47 1 47 2 93 2 93 2 93 2 93 2 93 2 93 2 93 4 40 4 40 4 40 4 40 Service Access min mm 850 Notes I All rated capacities are nominal values based on an ESP for Downflow 20pa and for Upflow 50Pa at sea level for R407C amp R22 For net capacities deduct fan input power Refer to the Liebert PEX Rating Program for specific input conditions air flow and configuration 2 Minimum unit depth without front panels and hinges is 841mm Minimum raised floor height 325mm for EC fan units Weights shown are for water cooled DX models only 3 Input power supply 400V 15 50Hz 2 RFLA is for the standard configuration unit only and excludes all heat rejection equipment Chillers and Pumps etc RFLA based on standard unit Refer to Liebert PEX Rating Program amp User Manual for electrical data on optional equipment 4 All information
45. 485 D Dual Cool chilled water air cooled 6 Monitoring iCOM DO H Dual Cool chilled water water cooled D Monitoring ISWEB amp iCOM DO F Free Cool E Monitoring Two ISWEB amp iCOM DO C Chilled Water F Monitoring 15485 amp iCOM DO R Chilled Water Dual Source G Monitoring Two 15485 amp iCOM DO Digit 8 Airflow H Monitoring ISWEB amp IS485 amp iCOM DO I EC Plug fan Standard Static Digit 20 Sensors S Forward Curved fan Standard Static 0 None Digit9 Power Supply S Smoke Sensor 3 400V 3ph 50Hz N H High Temperature T 380V 3ph 60Hz Chilled Water Only N Hot and Cold Isle Sensor amp Sensor B In addition to Standard Sensor A 460V 3ph 60Hz Chilled Water Only F Smoke amp High Temp Digit 10 Compressor amp Refrigerant Digit 21 Packaging C Compliant Scroll Single Circuit R407C P Packaging Standard S Compliant Scroll Dual Circuit R407C C Packaging Wooden Crate Export E Digital Scroll Single Circuit R407C Digit 22 Special Requirements D Digital Scroll Dual Circuit R407C A SFA none J Compliant Scroll Single Circuit R22 Z For internal use only F Compliant Scroll Dual Circuit R22 T For internal use only 2 CW Iwo way Valves Standard Pressure C For internal use only 3 CW Three way Valves Standard Pressure Digit 23 Order Identifier Digit II Humidification 0 None 0 None I High ESP 100 Pa H Infrared Humidifier 2 High ESP 200 Pa S Electrode humidifier 3 High AirFlow ESP other Digit 12 Display X SFA included S Sma
46. 5 35 19 1 2 1703 873 1970 630 1 49 2 93 850 2 39 4 2 2 DN25 2 2 48 35 2 35 2 19 1 2 1703 873 650 1 49 2 93 10 10 43 6 DN25 2 6 62 35 35 19 1 2 1703 873 670 1 49 2 93 2 via Compressors 10 10 DN25 3 2 55 35 35 19 1 2 1703 873 700 1 49 2 93 10 10 12 24 61 4 DN25 4 1 7 42 42 19 1 2 2553 873 970 2 23 4 40 I All rated capacities are nominal values based on an ESP for Downflow 20pa and for Upflow 50Pa at sea level for R407C amp R22 For net capacities deduct fan input power Refer to the Liebert PEX Rating Program for specific input conditions air flow and configuration 2 Minimum unit depth without front panels and hinges is 841mm Minimum raised floor height 325mm for EC fan units Weights shown are for water cooled DX models only 3 Input power supply 400V 15 50Hz 2 RFLA is for the standard configuration unit only and excludes all heat rejection equipment Chillers and Pumps etc RFLA based on standard unit Refer to Liebert PEX Rating Program amp User Manual for electrical data on optional equipment 4 All information and Technical Data are subject to change without notice 5 The Liebert PEX units are now also available with EC Fans The switching action of the EC Fan power controls may interact with emergency backup generators or UPS systems W Liebert 50Hz 3080 3090 75 2 81
47. 5 Condensing CW Based on 7C EWT 12 C LWT DX Total kW 20 3 23 2 30 2 37 0 45 8 54 0 41 3 47 2 61 0 67 0 74 0 82 7 90 1 100 0 Sensible kW 20 1 22 6 26 8 35 2 44 6 51 0 39 2 44 9 55 3 62 4 72 4 78 4 82 9 92 8 CW Total KW 25 7 28 0 29 4 48 6 59 7 63 5 52 2 59 0 66 1 67 3 92 6 97 2 97 8 99 0 Sensible kW 22 2 24 6 26 3 38 9 49 6 54 4 42 2 49 1 56 7 58 1 79 0 83 8 84 9 86 I Rated Capacity 24 C DB 45 RH 45 Condensing CW Based on 7 C EWT 12 C LWT DX Total kW 20 2 23 1 28 7 36 8 45 5 53 0 40 9 46 6 58 6 65 8 73 4 81 5 87 3 98 0 Sensible kW 20 1 22 9 28 3 36 5 45 0 52 6 40 6 46 3 58 2 65 3 72 7 80 9 86 6 97 2 CW Total kW 22 7 25 0 26 8 42 9 52 5 56 3 46 0 52 4 58 6 59 7 81 3 85 7 86 8 88 0 Sensible kW 22 7 25 0 26 8 39 5 50 6 55 6 42 9 50 1 58 1 59 5 80 7 85 7 86 8 88 0 Air Flow m h 6 500 7 500 8 300 10 000 14 000 16 000 11 200 13 800 17 000 17 600 23 000 25 000 25 500 25 800 Evaporator Fan Backward Curve EC motor direct drive No of fan assemblies 2 2 2 2 2 2 2 3 3 3 3 Std Motor kW 2 3 2 3 3 1 2 3 2 3 2 3 2 3 2 3 3 1 3 1 2 3 2 3 3 1 3 1 Dual Cool DX Evaporator amp Chilled Water Coil Copper tubes with rifled bore tubes louvred aluminium fins No of rows 6 6 6 6 6 6 6 6 6 7 6 6 6 7 Fin series FPM FPI 550 14 Compressor Copeland Compliant Scroll with Crankase Heater No of compressors l 2 2 2 2 2 2 2 2 Unit cooling steps 2 via HGBP 2 via Compressors Safety controls kPa LP cut out in auto reset 140 420 HP cut out man
48. 5 2035 2045 2055 2040 2050 2060 2070 Rated Capacity 24 C DB 50 RH 45 Condensing Total kW 19 2 216 274 304 343 427 512 38 1 43 3 55 7 61 4 Sensible kW 19 0 21 4 27 1 28 4 340 424 508 378 43 0 553 583 Rated Capacity 24 C DB 45 RH 45 Condensing Total kW 19 1 21 5 27 3 30 0 34 1 425 51 0 380 432 555 61 1 Sensible kW 19 1 215 272 298 340 424 509 37 9 43 1 554 60 6 Air Flow mh 6 500 7 500 8 300 8500 10 000 14 000 16 000 11 200 13 800 17 000 Evaporator Fan Backward curve EC motor direct drive No of fan assemblies 2 2 2 2 2 2 2 Std Motor kW 2 3 2 3 3 1 3 1 2 3 2 3 2 3 2 3 2 3 3 1 3 1 Evaporator Coil Copper tubes with rifled bore tubes louvred aluminium fins No of rows 3 3 4 4 3 3 4 3 3 4 4 Fin series FPM FPI 550 14 Compressor Copeland Compliant Scroll with Crankase Heater No of compressors 2 2 2 2 Unit cooling steps 2 via HGBP Safety controls kPa Humidification Control Infrared kg h 4 5 4 5 4 5 4 5 10 10 10 10 10 10 10 Opt Electrode kg h 5 5 5 5 10 10 10 10 10 10 10 Dehumidification control Reduced air flow Reheat Single stage electric heater elements I stage kW 6 6 6 6 9 9 Opt 2 stage kW 12 12 12 12 18 18 18 18 18 18 18 Filter Metal Frame Deep V dry media disposable G4 type filter Nominal W x D x H mm 800 x 660 x 100 Qty 2 2 2 2 2 2 2 Full Load Current 400 Volts 3 phase N E 50 Hz Supply Std DX unit only RFLA 227 248 313 332 400 458 534 394 436 566 60 4 Wat
49. 5 DN25 DN25 DN25 DN25 DN32 Flow l s I I 1 2 1 6 1 8 1 9 2 4 2 8 2 1 2 4 3 2 3 6 3 8 4 3 4 7 5 3 PD kPa 50 63 77 56 67 83 79 5I 64 79 58 65 82 82 7 Unit Connections Hot Gas O D 22 22 22 22 22 22 22 22 22 22 22 22 22 22 22 Qty l l l 2 2 2 2 2 2 2 2 Liquid O D 16 16 16 16 16 16 16 16 16 16 16 16 16 16 16 Qty l 2 2 2 2 2 2 2 2 Condenser Water Supply I D 35 35 35 35 35 35 35 35 35 35 35 35 35 35 35 Qty 2 2 2 2 2 2 2 2 Condenser Water Return O D 35 35 35 35 35 35 35 35 35 35 35 35 35 35 35 Qty 2 2 2 2 2 2 2 2 Drain Barb mm 19 19 19 19 19 19 19 19 19 19 19 19 19 19 19 Hum Supply BSP M 1 2 1 2 1 2 1 2 1 2 1 2 1 2 1 2 1 2 1 2 1 2 1 2 1 2 1 2 1 2 Unit Dimensions amp Weight Width mm 853 853 853 853 1703 1703 1703 1703 1703 1703 1703 2553 2553 2553 2553 Depth mm 873 873 873 873 873 873 873 873 873 873 873 873 873 873 873 Height mm 1970 Unit Weight kg 350 360 370 380 600 610 630 650 670 700 720 970 990 1030 1050 Unit Footprint Unit only m 0 74 0 74 0 74 0 74 1 49 1 49 1 49 1 49 1 49 1 49 1 49 2 23 2 23 2 23 2 23 Incl Service area m 1 47 1 47 1 47 1 47 2 93 2 93 2 93 2 93 2 93 2 93 2 93 4 40 4 40 4 40 4 40 Service Access min mm 850 Notes I All rated capacities are nominal values based on an ESP for Downflow 20pa and for Upflow 50Pa at sea level for R407C amp R22 For net capacities deduct fan input power Refer to the Liebert PEX Rating Program fo
50. 6 6 6 9 9 9 9 9 9 9 12 12 12 12 Opt 2 stage kW 12 12 12 18 18 18 18 18 18 18 24 24 24 24 Filter Metal Frame Deep V dry media disposable G4 type filter Nominal W x D x H mm 800 x 800 x 100 Qty 2 2 2 2 2 2 2 3 3 3 3 Full Load Current 400 Volts 3 phase N E 50 Hz Supply Std DX unit only RFLA 24 0 26 1 33 1 42 6 48 4 53 4 42 0 46 2 60 2 64 0 65 3 71 1 82 3 92 3 Water Cooled Condenser 316SS Brazed Plate Heat Exchanger 3 Way MBV Opt 2 Way MBV No of Condensers 2 2 2 2 2 2 2 2 No of MBV 2 2 2 2 2 2 2 2 Valve Size DN25 DN25 DN25 DN25 DN25 DN32 DN25 DN25 DN25 DN25 DN25 DN25 DN25 DN32 Flow l s I I 1 2 1 5 1 9 2 4 2 7 2 2 2 5 3 1 3 6 3 8 4 3 4 6 5 4 PD kPa 49 64 75 67 84 74 5I 65 75 58 65 8l 77 71 Unit Connections Hot Gas O D 22 22 22 22 22 22 22 22 22 22 22 22 22 22 Qty 2 2 2 2 2 2 2 2 Liquid O D 16 16 16 16 16 16 16 16 16 16 16 16 16 16 Qty 2 2 2 2 2 2 2 2 Condenser Water Supply ID 35 35 35 35 35 35 35 35 35 35 42 42 42 42 Qty 2 2 2 2 2 2 2 2 Condenser Water Return O D 35 35 35 35 35 35 35 35 35 35 42 42 42 42 Qty 2 2 2 2 2 2 2 2 CW Supply I D 25 25 25 35 35 35 35 35 35 35 42 42 42 42 CW Return O D 25 25 25 35 35 35 35 35 35 35 42 42 42 42 Drain Barb mm 19 19 19 19 19 19 19 19 19 19 19 19 19 19 Hum Supply BSP M 1 2 1 2 1 2 1 2 1 2 1 2 1 2 1 2 1 2 1 2 1 2 1 2 1 2 1 2 Unit Dimensions amp Weight Width mm 853 853 853 170
51. Condensers shall be suitable for 24 hour operation and be capable of providing vertical or horizontal discharge The condenser shall be fully factory wired to an input isolator and require volt 3 phase Hz electrical service The high performance heat exchanger condenser shall include mechanically expanded enhanced surface copper tubes and aluminium fins for efficient heat transfer The coil shall be have a maximum of __ rows and fins per metre __ FPI Fan Speed Control Condenser The condenser fans shall be directly driven by pole rpm ___ volt_____ Hz electric motors with an IP54 enclosure rating and class F insulation The motors shall be equipped with permanently sealed ball bearings and high temperature grease The motors shall be speed controlled to ensure stable operating conditions from 20 C to 45 C ambient by a factory fitted direct acting pressure actuated electronic fan speed controller The control system shall be complete with input isolator transducers and electrical wiring t liebert Tenia Bato Manual 4 3 Guide Specifications Liebert PEX Large Frame Water Glycol Cooled Systems The indoor evaporator unit shall include a plate heat exchanger fitted with rotalock connections motorised ball valve and pipework for each refrigeration circuit complete with refrigerant holding charge Balancing and isolation valves shall be field supplied and fitted by others Note A strainer with a minumum Imm mesh 20 must be f
52. FPI 550 14 Compressor Copeland Compliant Scroll with Crankase Heater No of compressors 2 2 2 2 Unit cooling steps Variable Safety controls kPa LP cut out in auto reset 140 420 HP cut out manual reset 2800 Humidification Control Infrared kg h 4 5 4 5 4 5 10 10 10 10 10 Opt Electrode kg h 5 5 5 10 10 10 10 10 Dehumidification control Variable air flow Reheat Single stage electric heater elements I stage kW 6 6 6 12 Opt 2 stage kW 12 12 12 18 18 18 18 24 Filter Metal Frame Deep V dry media disposable G4 type filter Nominal W x D x H mm 800 x 660 x 100 Qty 2 2 2 2 3 Full Load Current 400 Volts 3 phase N E 50 Hz Supply Std DX unit only RFLA 23 4 24 8 30 4 40 0 40 8 43 6 54 8 61 4 Water Cooled Condenser 316SS Brazed Plate Heat Exchanger 3 Way MBV Opt 2 Way MBV No of Condensers 2 2 2 2 No of MBV 2 2 2 2 Valve Size DN25 DN25 DN25 DN25 DN25 DN32 DN25 DN25 Flow I s kl 1 3 1 4 2 0 2 2 2 6 2 9 4 1 PD kPa 48 63 45 69 48 62 46 71 Unit Connections Condenser Water Supply I D 35 35 35 35 35 35 35 35 Qty 2 2 2 3 Condenser Water Return O D 35 35 35 35 35 35 35 35 Qty 2 2 2 3 Drain Barb mm 19 19 19 19 19 19 19 19 Hum Supply BSP M 1 2 1 2 1 2 1 2 1 2 1 2 1 2 1 2 Unit Dimensions amp Weight Width mm 853 853 853 1703 1703 1703 1703 2553 Depth mm 873 873 873 873 873 873 873 873 Height mm 1970 Unit Weight kg 350 360 370 600 650 670 700 970
53. IZE Compressorised Systems The maximum footprint area of the unit shall not exceed 0 75 m up to 35 kW 1 50 m above 35 and up to 70 kW 2 25 m above 70 and up to 100 kW The unit shall require 850 mm front access only for routine service and installation work 4 4 Technical Data Manual 0 Li ebert Liebert PEX Large Frame Guide Specifications ALL SYSTEMS Water Under Floor Sensor Each unit shall be supplied with a single water under floor point detector as standard The sensor shall signal a water under floor alarm to the controller upon detecting water iCOM Microprocessor Control with SMALL Graphic Display The iCOM unit control shall be factory set for Intelligent Control which uses fuzzy logic and expert systems methods Proportional and Tunable PID shall also be user selectable options Internal unit component control shall include the following Compressor Short Cycle Control Prevents compressor short cycling and needless compressor wear System Auto Restart The auto restart feature will automatically restart the system after a power failure Time delay is programmable Sequential Load Activation On initial startup or restart after power failure each operational load is 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 te
54. MBV Opt 2 Way MBV No of Condensers l 2 2 2 2 2 2 2 2 No of MBV 2 2 2 2 2 2 2 2 Valve Size DN25 DN25 DN25 DN25 DN25 DN25 DN32 DN25 DN25 DN25 DN25 DN25 DN25 DN25 DN32 Flow l s 1 0 1 2 1 6 1 7 1 9 2 3 2 8 2 1 2 4 3 2 3 5 3 7 4 2 4 7 5 3 PD kPa 48 62 77 56 67 8l 76 50 63 78 57 63 79 80 69 Unit Connections Hot Gas O D 22 22 22 22 22 22 22 22 22 22 22 22 22 22 22 Qty l l l l 2 2 2 2 2 2 2 2 Liquid O D 16 16 16 16 16 16 16 16 16 16 16 16 16 16 16 Qty l l l 2 2 2 2 2 2 2 2 Condenser Water Supply I D 35 35 35 35 35 35 35 35 35 35 35 35 35 35 35 Qty l l l l l l 2 2 2 2 2 2 2 2 Condenser Water Return O D 35 35 35 35 35 35 35 35 35 35 35 35 35 35 35 Qty l l 2 2 2 2 2 2 2 2 Drain Barb mm 19 19 19 19 19 19 19 19 19 19 19 19 19 19 19 Hum Supply BSP M 1 2 1 2 1 2 1 2 1 2 1 2 1 2 1 2 1 2 1 2 1 2 1 2 1 2 1 2 1 2 Unit Dimensions amp Weight Width mm 853 853 853 853 1703 1703 1703 1703 1703 1703 1703 2553 2553 2553 2553 Depth mm 873 873 873 873 873 873 873 873 873 873 873 873 873 873 873 Height mm 1970 Unit Weight kg 350 360 370 380 600 610 630 650 670 700 720 970 990 1030 1050 Unit Footprint Unit only m 0 74 0 74 0 74 0 74 1 49 1 49 1 49 1 49 1 49 1 49 1 49 2 23 2 23 2 23 2 23 Incl Service area m 1 47 1 47 1 47 1 47 2 93 2 93 2 93 2 93 2 93 2 93 2 93 4 40 4 40 4 40 4 40 Service Access min mm 850 Notes I All rated capacities are nominal values based
55. Opt 2 Way MBV No of Condensers 2 2 2 2 2 2 No of MBV 2 2 2 2 2 2 Valve Size DN25 DN25 DN25 DN25 DN25 DN32 DN25 DN25 DN25 DN25 DN25 DN25 Flow l s 1 0 1 2 1 5 1 9 2 3 2 7 2 1 2 4 3 0 3 7 4 2 4 5 PD kPa 48 62 72 67 8l 71 50 63 72 63 79 75 Unit Connections Hot Gas O D 22 22 22 22 22 22 22 22 22 22 22 22 Qty 2 2 2 2 2 2 Liquid O D 16 16 16 16 16 16 16 16 16 16 16 16 Qty 2 2 2 2 2 2 Condenser Water Supply I D 35 35 35 35 35 35 35 35 35 42 42 42 Qty 2 2 2 2 2 2 Condenser Water Return O D 35 35 35 35 35 35 35 35 35 42 42 42 Qty 2 2 2 2 2 2 CW Supply I D 25 25 25 35 35 35 35 35 35 42 42 42 CW Return O D 25 25 25 35 35 35 35 35 35 42 42 42 Drain Barb mm 19 19 19 19 19 19 19 19 19 19 19 19 Hum Supply BSP M 1 2 1 2 1 2 1 2 1 2 1 2 1 2 1 2 1 2 1 2 1 2 1 2 Unit Dimensions amp Weight Width mm 853 853 853 1703 1703 1703 1703 1703 1703 2553 2553 2553 Depth mm 873 873 873 873 873 873 873 873 873 873 873 873 Height mm 1970 Unit Weight kg 350 360 370 600 610 630 650 670 700 970 990 1030 Unit Footprint Unit only m 0 74 0 74 0 74 1 49 1 49 1 49 1 49 1 49 1 49 2 23 2 23 2 23 Incl Service area m 1 47 1 47 1 47 2 93 2 93 2 93 2 93 2 93 2 93 4 40 4 40 4 40 Service Access min mm 850 Notes All rated capacities are nominal values based on an ESP for Downflow 20pa and for Upflow 50Pa at sea level for R407C amp R22 For net capacities
56. P 2 via Compressors Safety controls kPa LP cut out in auto reset 140 420 HP cut out manual reset 2800 Humidification Control Infrared kg h 4 5 4 5 4 5 4 5 10 10 10 10 10 10 10 10 10 10 IO Opt Electrode kg h 5 5 5 5 10 10 10 10 10 10 IO 10 10 10 10 Dehumidification control Partialised Coil Split Suction Solenoid Control Reheat Single stage electric heater elements I stage kW 6 6 6 6 9 9 9 9 9 9 9 12 12 12 12 Opt 2 stage kW 12 12 12 12 18 18 18 18 18 18 18 24 24 24 24 Filter Metal Frame Deep V dry media disposable G4 type filter Nominal W x D x H mm 800 x 660 x 100 Qty 2 2 2 2 2 2 2 3 3 3 3 Full Load Current 400 Volts 3 phase N E 50 Hz Supply Std DX unit only RFLA 240 26 1 33 1 350 426 484 534 420 462 602 640 653 71 823 92 3 Water Cooled Condenser 316SS Brazed Plate Heat Exchanger 3 Way MBV Opt 2 Way MBV No of Condensers 2 2 2 2 2 2 2 2 No of MBV 2 2 2 2 2 2 2 2 Valve Size DN25 DN25 DN25 DN25 DN25 DN25 DN32 DN25 DN25 DN25 DN25 DN25 DN25 DN25 DN32 Flow Il s 1 1 1 3 1 7 1 9 2 0 2 5 2 9 2 2 2 5 3 3 3 7 4 0 4 4 4 9 5 6 PD kPa 45 59 57 59 68 89 76 47 60 58 60 67 83 88 70 Unit Connections Glycol Supply I D 35 35 35 35 35 35 35 35 35 35 35 35 35 35 35 Qty l 2 2 2 2 2 2 2 2 Glycol Return O D 35 35 35 35 35 35 35 35 35 35 35 35 35 35 35 Qty l 2 2 2 2 2 2 2 2 Drain Barb mm 19 19 19 19 19 19 19 19 19 19 19 19 19 19 19 Hum Supply BS
57. P M 1 2 1 2 1 2 1 2 1 2 1 2 1 2 1 2 1 2 1 2 1 2 1 2 1 2 1 2 1 2 Unit Dimensions amp Weight Width mm 853 853 853 853 1703 1703 1703 1703 1703 1703 1703 2553 2553 2553 2553 Depth mm 873 873 873 873 873 873 873 873 873 873 873 873 873 873 873 Height mm 1970 Unit Weight kg 350 360 370 380 600 610 630 650 670 700 720 970 990 1030 1050 Unit Footprint Unit only m 0 74 0 74 0 74 074 1 49 1 49 1 49 1 49 1 49 1 49 149 223 223 223 2 23 Incl Service area m 1 47 1 47 1 47 147 293 293 2 93 293 293 293 293 440 440 440 4 40 Service Access min mm 850 Notes I All rated capacities are nominal values based on an ESP for Downflow 20pa and for Upflow 50Pa at sea level for R407C amp R22 For net capacities deduct fan input power Refer to the Liebert PEX Rating Program for specific input conditions air flow and configuration 2 Minimum unit depth without front panels and hinges is 841 mm Weights shown are for water cooled DX models only 3 Input power supply 400V 15 50Hz 2 RFLA is for the standard configuration unit only and excludes all heat rejection equipment Chillers and Pumps etc RFLA based on standard unit Refer to Liebert PEX Rating Program amp User Manual for electrical data on optional equipment 4 All information and Technical Data are subject to change without notice 24 Technical Dato Man um tebert Liebert PEX Large Frame Upflow DX Scroll compressors EC fans Model Size PEX 1020 1025 1030 103
58. Sensible kW 19 0 21 4 25 2 28 4 34 0 37 8 Rated Capacity 24 C DB 45 RH 45 C Condensing Total kW 19 1 21 5 25 3 30 0 34 1 38 0 Sensible kW 19 1 21 5 25 2 29 8 34 0 37 9 Air Flow m h 6 500 7 500 7 800 8 500 10 000 11 200 Evaporator Fan Backward curve EC motor direct drive No of fan assemblies l l l 2 2 Std Motor kW 2 3 2 3 3 1 3 1 2 3 2 3 Evaporator Coil Copper tubes with rifled bore tubes louvred aluminium fins No of rows 3 3 4 4 3 3 Fin series FPM FPI 550 14 Compressor Copeland Compliant Scroll with Crankase Heater No of compressors 2 Unit cooling steps Variable Safety controls kPa Humidification Control 2050 43 3 43 0 432 43 1 13 800 2 3 Infrared kg h 4 5 4 5 4 5 4 5 10 10 10 Opt Electrode kg h 5 5 5 5 10 10 10 Dehumidification control Reduced air flow Reheat Single stage electric heater elements I stage kW 6 6 6 6 9 Opt 2 stage kW 12 12 12 12 18 18 18 Filter Metal Frame Deep V dry media disposable G4 type filter Nominal W x D x H mm 800 x 660 x 100 Qty 2 2 2 Full Load Current 400 Volts 3 phase N E 50 Hz Supply Std DX unit only RFLA 23 4 24 8 30 4 33 2 40 0 40 8 43 6 Water Cooled Condenser 316SS Brazed Plate Heat Exchanger 3 Way MBV Opt 2 Way MBV No of Condensers 2 2 No of MBV 2 2 Valve Size DN25 DN25 DN25 DN25 DN25 DN25 DN25 Flow l s l l 1 3 1 5 1 9 2 0 2 2 2 6 PD kPa 48 63 49 59 69 48 62 Unit Connections Conde
59. Teamwork or Lead Lag from a centralised location e Unit Diary Free field area within the unit memory where unit maintenance shares history with any authorised users including record of what others have done The Large Graphic Display features a 320x240 dot matrix backlit screen with helpful system and maintenance views U2U Configuration Example Liebert PEX units with Small Graphic Display may be centrally monitored and controlled with the Optional Wall Mounted Large Graphic Display Operating p p Standby Operating Standby Teamwork Mode 2 Units work together to provide precision cooling in rooms with unbalanced loads Control Disables Dehumidification Humidifier ON Unit 1 Humidifier ON UNBALANCED LOAD NO LOAD Unit 5 Humidifier ON Note Field supplied network switch required for unit to unit communications vNSA Network Switch option is available Refer to iCOM User manual for further information on iCOM features and operation 3 2 Technical Data Manual W Liebert Liebert PEX Large Frame Guide Specifications GENERAL Summary These specifications describe requirements for a Mission Critical Cooling system The system shall be designed to control temperature and humidity conditions in rooms containing electronic equipment with good insulation and vapour barrier The manufacturer shall design and furnish all equipment to be fully compatible with heat dissipation requirem
60. Unit Footprint Unit only m 0 74 0 74 0 74 1 49 1 49 1 49 1 49 2 23 Incl Service area m 1 47 1 47 1 47 2 93 2 93 2 93 2 93 4 40 Service Access min mm 850 2 2 12 All rated capacities are nominal values based on an ESP for Downflow 20pa and for Upflow 50Pa at sea level for R407C amp R22 For net capacities deduct fan input power Refer to the Liebert PEX Rating Program for specific input conditions air flow and configuration Minimum unit depth without front panels and hinges is 841mm Minimum raised floor height 325mm for EC fan units VWeights shown are for water cooled DX models only Input power supply 400V 15 50Hz 2 RFLA is for the standard configuration unit only and excludes all heat rejection equipment Chillers and Pumps etc RFLA based on standard unit Refer to Liebert PEX Rating Program amp User Manual for electrical data on optional equipment All information and Technical Data are subject to change without notice The Liebert PEX units are now also available with EC Fans The switching action of the EC Fan power controls may interact with emergency backup generators or UPS systems Technical Data Manual W Liebert Liebert PEX Large Frame Technical Data Downflow DX Scroll compressors FC fans Air Water Cooled 50Hz Model Size PEX 1020 1025 1030 1035 2035 2045 2055 2040 2050 2060 2070 3070 3080 3090 3100 Rated Capacity 24 C DB 50 RH 45 Condensing Total kW 20 0 23 1 30 1 33 1 36 6 45 0 53 2
61. Water Supply I D 35 35 35 35 35 35 35 35 35 35 Qty 2 2 2 2 2 Condenser Water Return O D 35 35 35 35 35 35 35 35 35 35 Qty 2 2 2 2 2 Drain Barb mm 19 19 19 19 19 19 19 19 19 19 Hum Supply BSP M 1 2 1 2 1 2 1 2 1 2 1 2 1 2 1 2 1 2 1 2 Unit Dimensions amp Weight Width mm 853 853 853 853 1703 1703 1703 1703 1703 2553 Depth mm 873 873 873 873 873 873 873 873 873 873 Height mm 1970 Unit Weight kg 350 360 370 380 600 650 670 700 720 970 Unit Footprint Unit only m 0 74 0 74 0 74 0 74 1 49 1 49 1 49 1 49 1 49 2 23 Incl Service area m 1 47 1 47 1 47 1 47 2 93 2 93 2 93 2 93 2 93 4 40 Service Access min mm 850 Notes All rated capacities are nominal values based on an ESP for Downflow 20pa and for Upflow 50Pa at sea level for R407C amp R22 For net capacities deduct fan input power Refer to the Liebert PEX Rating Program for specific input conditions air flow and configuration 2 Minimum unit depth without front panels and hinges is 841mm Minimum raised floor height 325mm for EC fan units Weights shown are for water cooled DX models only 3 Input power supply 400V 15 50Hz 2 RFLA is for the standard configuration unit only and excludes all heat rejection equipment Chillers and Pumps etc RFLA based on standard unit Refer to Liebert PEX Rating Program amp User Manual for electrical data on optional equipment 4 All information and Technical Data are subject to change without n
62. Weights shown are for water cooled DX models only 3 Input power supply 400V 15 50Hz 2 RFLA is for the standard configuration unit only and excludes all heat rejection equipment Chillers and Pumps etc RFLA based on standard unit Refer to Liebert PEX Rating Program amp User Manual for electrical data on optional equipment 4 All information and Technical Data are subject to change without notice 5 The Liebert PEX units are now also available with EC Fans The switching action of the EC Fan power controls may interact with emergency backup generators or UPS systems 2 15 Technical Data Manual Liebert Technical Data Liebert PEX Large Frame Downflow DX Scroll compressors FC fans Glycol Cooled 50Hz Model Size PEX 1020 1025 1030 1035 2035 2045 2055 2040 2050 2060 2070 3070 3080 3090 3100 Rated Capacity 24 C DB 50 RH 54 Condensing Total kW 18 2 21 5 28 3 31 2 342 41 3 48 7 37 0 42 9 56 1 63 0 66 6 74 5 82 6 91 9 Sensible kW 18 1 20 8 258 28 6 34 0 40 3 45 6 36 8 41 8 51 6 57 5 65 3 68 4 76 9 85 1 Rated Capacity 24 C DB 45 RH 54 Condensing Total kW 182 21 5 27 0 300 342 41 1 485 370 429 546 609 666 73 4 80 7 90 5 Sensible kW 182 214 267 298 340 408 48 1 36 9 428 542 604 665 728 800 898 Air Flow mh 5 670 6 660 8 280 8 190 9 900 12 240 13 680 10 980 12 960 16 200 16 020 20 160 20 160 23 940 23 760 Evaporator Fan Forward curve FC centrifugal fan induction motor auto tensioning belt drive No of fan asse
63. ater elements I stage kW 6 6 6 6 9 9 9 12 Opt 2 stage kW 12 12 12 12 18 18 18 18 18 24 Filter Metal Frame Deep V dry media disposable G4 type filter Nominal W x D x H mm 800 x 800 x 100 Qty 2 2 2 2 2 3 Full Load Current 400 Volts 3 phase N E 50 Hz Supply Std DX unit only RFLA 23 4 24 8 30 4 33 2 40 0 40 8 43 6 54 8 60 4 61 4 Water Cooled Condenser 316SS Brazed Plate Heat Exchanger 3 Way MBV Opt 2 Way MBV No of Condensers 2 2 2 2 2 No of MBV 2 2 2 2 2 Valve Size DN25 DN25 DN25 DN25 DN25 DN25 DN25 DN25 DN25 DN25 Flow l s l l 1 3 1 5 1 9 2 0 2 2 2 6 3 0 3 8 4 1 PD kPa 48 62 48 60 70 48 6l 49 62 70 Unit Connections Condenser Water Supply O D 35 35 35 35 35 35 35 35 35 35 Qty 2 2 2 2 2 Glycol Return O D 35 35 35 35 35 35 35 35 35 35 Qty 2 2 2 2 2 Drain Barb mm 19 19 19 19 19 19 19 19 19 19 Hum Supply BSP M 1 2 1 2 1 2 1 2 1 2 1 2 1 2 1 2 1 2 1 2 Unit Dimensions amp Weight Width mm 853 853 853 853 1703 1703 1703 1703 1703 2553 Depth mm 873 873 873 873 873 873 873 873 873 873 Height mm 1970 Unit Weight kg 350 360 370 380 600 650 670 700 720 970 Unit Footprint Unit only m 0 74 0 74 0 74 0 74 1 49 1 49 1 49 1 49 1 49 2 23 Incl Service area m 1 47 1 47 1 47 1 47 2 93 2 93 2 93 2 93 2 93 4 40 Service Access min mm 850 Notes I All rated capacities are nominal values based on an ESP for Downflow 20pa and for Upflow 50Pa at sea l
64. be constructed from welded galvanised steel The floor stand shall have adjustable legs and be mm high Upflow Unit Plenum with Discharge Grille s The air plenum shall be constructed from 2mm zinc coated sheet steel and powder coated in Charcoal Grey colour with a textured finish The plenum shall be 600mm high or for low ceiling heights an optional 400mm plenum Double deflection discharge grilles made from aluminium and powder coated black shall be fitted to the front panels Air Cooled Condenser Corrosion Protection A high performance corrosion resistant pre coated fin option can be provided for harsh environmental applications the coating shall have negligable effect on the heat transfer performance 4 8 Technical Data Manual 0 Li ebert Liebert PEX Large Frame Installation Guidelines Unit Installation To achieve design performance and maximum product life correct installation is vital The following information relates specifically to our products and should be applied in conjunction with prevailing industry standards for mechanical and electrical installations For more detailed information on installing Liebert PEX systems please refer to the PEX User manual Air Cooled Systems The PEX air cooled unit is shipped with a factory holding charge of nitrogen Each circuit is supplied with quarter turn isolation valves on the liquid and discharge lines to facilitate installation and servicing The refrigerant piping must be co
65. ching amp Controls fl DC Power infrastructure Management amp Monitoring fl Precision Cooling Emerson Network Power Asia Australia T 1800 065345 F 61 2 97438737 China T 86 755 860 10808 F 86 755 860 10245 India T 91 22 67208000 F 91 22 25828358 Indonesia T 62 21 2513003 F 62 21 2510622 apan T 81 3 54038594 F 81 3 54032924 Korea T 82 2 34831500 F 82 2 5927883 Malaysia T 603 78845000 F 603 78845188 Marketing AP Emerson com New Zealand T 64 3 3392060 F 64 3 3392063 Pakistan T 92 42 36622526 to 28 F 92 42 36622530 Philippines T 63 2 6203600 F 63 2 6203693 Singapore T 65 64672211 F 65 64670130 Thailand T 66 2 6178260 F 66 2 6178277 78 Vietnam T 84 4 37628908 F 84 4 37628909 EmersonNetworkPower com I Racks amp Integrated Cabinets E Services i Surge Protection Business Critical Continuity Emerson Network Power and the Emerson Network Power logo are trademarks and service marks of Emerson Electric 2010 Emerson electric Co AP10ENT PEXDXV1 TDM
66. cooled unit is shipped with a factory charged refrigeration system of either R22 or R407C and includes a brazed plate stainless steel plate heat exchanger and 2 or 3 way water regulating control valve per circuit In addition the following services are required to make the system operational electrical supply to the indoor unit e condenser water supply e humidifier drains e humidifier water supply Water Cooled Piping A strainer with a Imm mesh 20 and isolation valves on either side must be fitted to the condenser water supply for each unit A balancing valve is also recommended for each circuit as a minimum to provide adjustment of condenser water flow rates Refer to PEX User manual for further information Humidifier Drain A water supply and drain connection is required for each unit Drain lines should be copper and comply with local regulations and building codes Refer to PEX User manual for further information W Liebert Technical Data Manual 5 3 Installation Guidelines Liebert PEX Large Frame Unit Dimensions amp Service Access PEX Large Frame Downflow Unit Forward Curve Fans FOR RAISED FLOOR APPLICATIONS A Air Cooled D Dual Cool Chilled Water amp Air Cooled W Water Cooled H Dual Cool Chilled Water amp Water Cooled e G Glycol Cooled e F Free Cool Mode Mode MU w o n Bg wIe n 5 4 Technical Data Manual lO Liebert Liebert PEX Large Frame Installation Guidelines Unit Dimension
67. dard unit Refer to Liebert PEX Rating Program amp User Manual for electrical data on optional equipment 4 All information and Technical Data are subject to change without notice 2 22 Technical Data Manual W Liebert Liebert PEX Large Frame Technical Data Downflow DX Scroll Compressors EC fans Free Cool 50Hz Model Size PEX 1020 1025 1030 2035 2045 2055 2040 2050 2060 2070 3070 3080 3090 3100 Rated Capacity 24 C DB 50 RH 54 Condensing CW Based on 7 C EWT 12 C LWT and Glycol 30 DX Total kW 19 6 22 1 28 I 34 4 43 4 49 7 38 3 43 9 56 6 63 5 70 4 76 4 83 0 91 7 Sensible kW 19 5 21 9 26 0 34 1 43 0 49 3 38 0 43 6 53 6 60 4 69 8 75 8 80 I 89 5 Free Cool Total kW 23 5 25 7 27 0 44 5 54 6 58 2 47 8 54 0 60 5 61 6 84 8 89 0 89 5 90 6 Sensible kW 21 0 23 2 24 9 36 8 46 9 51 4 39 9 46 4 53 6 54 9 74 7 79 2 80 2 81 4 Rated Capacity 24 C DB 45 RH 54 Condensing CW Based on 7 C EWT 12 C LWT and Glycol 30 DX Total kW 19 5 22 0 27 3 34 2 43 2 49 5 38 2 43 8 55 8 62 6 70 2 76 2 82 7 91 5 Sensible kW 19 4 21 9 27 1 34 1 43 1 49 4 38 1 43 7 55 4 62 2 70 0 76 0 82 0 91 3 Free Cool Total kW 20 8 22 9 24 5 39 3 48 1 51 6 42 1 48 0 53 7 54 6 74 4 78 4 79 5 80 5 Sensible kW 20 8 22 9 24 5 36 1 46 3 50 9 39 3 45 8 53 2 54 5 73 9 78 4 79 5 80 5 Air Flow mh 6 500 7 500 8 300 10 000 14 000 16 000 11 200 13 800 17 000 17 600 23 000 25 000 25 500 25 800 Evaporator Fan Backward curve FC motor direct drive No of fan assemblies 2 2 2 2 2
68. e with EC Fans The switching action of the EC Fan power controls may interact with emergency backup generators or UPS systems 0 Liebert Technical Data Manual 2 17 Technical Data Liebert PEX Large Frame Downflow Digital Scroll Compressors EC fans Glycol Cooled 50Hz Model Size PEX 1020 1025 1030 1035 2035 2040 2050 2060 2070 3070 Rated Capacity 24 C DB 50 RH 45 C Condensing Total kW 19 6 22 1 25 7 31 6 34 4 38 3 43 9 51 5 63 2 70 4 Sensible kW 19 5 21 9 25 5 29 4 34 1 38 0 43 6 51 1 60 4 69 8 Rated Capacity 24 C DB 45 RH 45 C Condensing Total kW 19 5 22 0 25 6 30 8 34 2 38 2 43 8 51 3 62 6 70 2 Sensible kW 19 4 21 9 25 5 30 5 34 1 38 1 43 7 51 0 62 2 70 0 Air Flow m h 6 500 7 500 7 800 8 500 10 000 11 200 13 800 15 500 17 600 23 000 Evaporator Fan Backward curve EC motor direct drive No of fan assemblies 3 Std Motor kW 2 3 2 3 3 1 3 1 2 3 23 23 3 1 3 1 2 3 Evaporator Coil Copper tubes with rifled bore tubes louvred aluminium fins No of rows 3 3 4 4 3 3 3 4 4 3 Fin series FPM FPI 550 14 Compressor Copeland Compliant Scroll with Crankase Heater No of compressors 2 2 2 2 2 Unit cooling steps Variable Safety controls kPa LP cut out in auto reset 140 420 HP cut out manual reset 2800 Humidification Control Infrared kg h 4 5 4 5 4 5 4 5 10 10 10 10 10 10 Opt Electrode kg h 5 5 5 5 10 10 10 10 10 10 Dehumidification control Reduced air flow Reheat Single stage electric he
69. ed on standard unit Refer to Liebert PEX Rating Program amp User Manual for electrical data on optional equipment 4 All information and Technical Data are subject to change without notice 5 The Liebert PEX units are now also available with EC Fans The switching action of the EC Fan power controls may interact with emergency backup generators or UPS systems 2 23 Technical Data Manual W Liebert Technical Data Liebert PEX Large Frame Downflow Digital Scroll Compressors EC fans Free Cool 50Hz Model Size PEX 1020 1025 1030 2035 2040 2050 2060 2070 3070 Rated Capacity 24 C DB 50 RH 54 Condensing CW Based on 7 C EWT 12 C LWT and Glycol 30 DX Total kW 19 6 22 1 25 4 34 4 38 3 43 9 51 4 63 5 70 4 Sensible kW 19 5 21 9 24 3 34 1 38 0 43 6 49 6 60 4 69 8 Free Cool Total kW 23 5 25 7 26 2 44 5 47 8 54 0 57 8 61 2 84 8 Sensible kW 21 0 23 2 23 9 36 8 39 9 46 4 50 4 54 7 74 7 Rated Capacity 24 C DB 45 RH 54 Condensing CW Based on 7 C EWT 12 C LWT and Glycol 30 DX Total kW 19 5 22 0 25 2 34 2 38 2 43 8 51 1 62 6 70 2 Sensible kW 19 4 21 9 25 0 34 1 38 1 43 7 50 7 62 2 70 0 Free Cool Total kW 20 8 22 9 23 6 39 3 42 1 48 0 50 8 54 3 74 4 Sensible kW 20 8 22 9 23 6 36 1 39 3 45 8 49 8 54 3 73 9 Air Flow m3 h 6 500 7 500 7 800 10 000 11 200 13 800 15 500 17 600 23 000 Evaporator Fan Backward curve EC motor direct drive No of fan assemblies l 2 2 2 2 2 3 Std Motor kW 2 3 2 3 3 1 2 3 2 3 2 3 3 1 3 1 2 3 Free Cool DX
70. elt drive No of fan assemblies 2 2 2 2 2 2 3 3 3 Std Motor kW 2 2 2 2 3 0 2 2 2 2 2 2 2 2 2 2 3 0 2 2 2 2 3 0 Free Cool DX Evaporator amp Chilled Water Coil Copper tubes with rifled bore tubes louvred aluminium fins No of rows 6 6 6 6 6 6 6 6 6 6 6 6 Fin series FPM FPI 550 14 Compressor Copeland Compliant Scroll with Crankase Heater No of compressors 2 2 2 2 2 2 Unit cooling steps 2 via HGBP 2 via Compressors Safety controls kPa LP cut out in auto reset 140 420 HP cut out manual reset 2800 Humidification Control Infrared kg h 4 5 4 5 4 5 10 10 10 10 10 10 10 10 10 Opt Electrode kg h 5 5 5 10 10 10 10 10 10 10 10 10 Dehumidification control N A Reheat Single stage electric heater elements I stage kW 6 6 6 9 9 9 9 9 9 12 12 12 Opt 2 stage kW 12 12 12 18 18 18 18 18 18 24 24 24 Filter Metal Frame Deep V dry media disposable G4 type filter Nominal W x D x H mm 800 x 660 x 100 Qty 2 2 2 2 2 2 3 3 3 Electrical 400V 50Hz 3Phase Std DX unit only RFLA 24 0 26 1 33 3 42 6 48 4 53 4 42 0 46 2 60 2 65 3 71 1 82 3 Water Cooled Condenser 316SS Brazed Plate Heat Exchanger 3 Way MBV Opt 2 Way MBV No of Condensers 2 2 2 2 2 2 No of MBV 2 2 2 2 2 2 Valve Size DN25 DN25 DN25 DN25 DN25 DN32 DN25 DN25 DN25 DN25 DN25 DN25 Flow l s LI 1 3 1 6 2 0 2 5 2 8 2 2 2 5 3 2 4 0 4 4 4 7 PD kPa 45 59 54 68 89 72 47 60 54 67 83 82 Unit Connections Glycol Supply I D 35
71. ents of the room PRODUCT Design Requirements The Mission Critical Cooling system shall be a Liebert PEX model self contained factory assembled unit with upflow downflow air delivery The system shall have a total cooling capacity of kW with a sensible cooling capacity of kW based on an entering air temperature of C dry bulband C wet bulb The unit is to be supplied with volt ph ___ Hz electrical service and include a rating nameplate stating the unit RFLA Cabinet Construction The frame shall be constructed of 2 5 2 0 and 1 2 mm folded galvanised steel The exterior panels shall be constructed of 2 mm zinc coated sheet steel and insulated with foam insulation The cabinet shall be powder coated in Charcoal Grey colour and have a textured finish The hinged front doors shall be removeable and include captive 4 turn fasteners The cabinet shall be constructed to provide ease of disassembly amp reassembly for difficult access sites Filtration The filter panels shall be an integral part of the system and withdrawable from the front of the unit Filtration shall be provided by deep V form dry disposable media housed in a metal frame The rated efficiency shall be to EU4 MERV8 Standards FC Fans Dual Cool Direct Expansion amp Chilled Water The fan section shall be designed for m h at an external static pressure of Pa The unit shall be fitted with one two three belt driven forward curved FC centrif
72. er Cooled Condenser 316SS Brazed Plate Heat Exchanger 3 Way MBV Opt 2 Way MBV No of Condensers 2 2 2 2 No of MBV 2 2 2 2 Valve Size DN25 DN25 DN25 DN25 DN25 DN25 DN32 DN25 DN25 DN25 DN25 Flow l s l l 1 3 1 7 1 9 2 0 2 5 3 0 2 2 2 6 3 4 3 8 PD kPa 48 63 58 59 69 92 8l 48 62 59 6l Unit Connections Glycol Supply I D 35 35 35 35 35 35 35 35 35 35 35 Qty 2 2 2 2 Glycol Return O D 35 35 35 35 35 35 35 35 35 35 35 Qty 2 2 2 2 Drain Barb mm 19 19 19 19 19 19 19 19 19 19 19 Hum Supply BSP M 1 2 1 2 1 2 1 2 1 2 1 2 1 2 1 2 1 2 1 2 1 2 Unit Dimensions amp Weight Width mm 853 853 853 853 1703 1703 1703 1703 1703 1703 1703 Depth mm 873 873 873 873 873 873 873 873 873 873 873 Height mm 1970 Unit Weight kg 350 360 370 380 600 610 630 650 670 700 720 Unit Footprint Unit only m 0 74 0 74 0 74 0 74 1 49 1 49 1 49 1 49 1 49 1 49 1 49 Incl Service area m 1 47 1 47 1 47 1 47 2 93 2 93 2 93 2 93 2 93 2 93 2 93 Service Access min mm 850 Notes Glycol Cooled Technical Data 50Hz 3070 3080 3090 3100 69 0 75 2 82 6 90 7 68 5 74 6 82 0 85 7 68 7 75 0 82 4 89 8 68 6 74 9 82 2 89 17 480 23 000 25 000 25 170 25 170 3 3 3 3 2 3 2 3 3 1 3 1 3 3 4 4 2 2 2 2 2 via Compressors LP cut out in auto reset 140 420 HP cut out manual reset 2800 10 10 10 10 10 10 10 10 12 12 12 12 24 24 24 24 3 3 3 3 61 4 67 2 75 9 86 9 2 2 2 2 2
73. evel for R407C amp R22 For net capacities deduct fan input power Refer to the Liebert PEX Rating Program for specific input conditions air flow and configuration 2 Minimum unit depth without front panels and hinges is 841mm Minimum raised floor height 325mm for EC fan units Weights shown are for water cooled DX models only 3 Input power supply 400V 15 50Hz 2 RFLA is for the standard configuration unit only and excludes all heat rejection equipment Chillers and 2 18 Pumps etc RFLA based on standard unit Refer to Liebert PEX Rating Program amp User Manual for electrical data on optional equipment All information and Technical Data are subject to change without notice The Liebert PEX units are now also available with EC Fans The switching action of the EC Fan power controls may interact with emergency backup generators or UPS systems Technical Data Manual W Liebert Liebert PEX Large Frame Technical Data Downflow DX Scroll compressors FC fans Air Water Cooled Dual Cool 50Hz Model Size PEX 1020 1025 1030 2035 2045 2055 2040 2050 2060 2070 3070 3080 3090 3100 Rated Capacity 24 C DB 50 RH 45 Condensing CW Based on 7 C EWT 12 C LWT DX Total kW 20 0 23 I 30 I 36 6 45 0 53 2 41 0 46 4 60 6 66 9 73 9 81 4 89 3 100 0 Sensible kW 18 9 21 5 26 6 35 1 41 7 47 3 38 5 43 2 53 5 59 0 68 2 71 1 79 6 88 4 CW Total kW 23 9 26 2 29 4 48 2 54 9 58 6 51 4 57 0 64 2 63 6 86 3 86 3 94 8 95 3 Sensible kW 20 2 22 6
74. fl Next Generation Critical Cooling for Room and Row Liebert PEX Efficiency And Reliability For High Availability Cooling Technical Data Manual Q EMERSON Network Power Liebert Contents Design MOAN Configuration Nomenclature s sesesssesssssesesesssesesesesessseseseseseseseseseseseseses 3 Features and Benefits rssesvenvenenvensenssvensensenensensensssensenssvensenssnensenssvensenssnenee 4 Model COMPGUPAT OM sscscccssecsccassecsedsacsccsnaessenasncoseucecesesnsazaasatenexcesesnexacseeeseeaes 15 Technical Data 50Hz Upflow Air Water Glycol Cooled Dual Cool Free Cool eee 2 Downflow Air Water Glycol Cooled Dual Cool Free Cool 2 13 ICOM Control System smsnrononronronenvonvenenveneeneeneneeneenenesneevensenesrensenesnene 3 Guide Specifications osnonoonoronrononronreneerenreneeneneeneenenseneevenneneenensensenensen 4 Installation Guidelines ooo ee eeeeeeseeeeeeeceecsesceessceeeessseeeseeeeees 5 Unit Dimensions amp Service Cccess s esesvasesserrenesnenrsneenensenesvensenssnensenssnensen 5 4 v 130710 Technical Data Manual Liebert PEX Large Frame Design Introduction The Liebert PEX is the new generation precision air conditioning system from Emerson Network Power The Liebert PEX is the very latest in a long line of advanced products from the Liebert family designed to support business critical applications Sensitive
75. frared kg h 4 5 4 5 4 5 10 10 10 10 10 Opt Electrode kg h 5 5 5 10 10 10 10 10 Dehumidification control Standard HVAC dehumidification methology utilised Reheat Single stage electric heater elements I stage kW 6 6 6 9 9 9 9 9 Opt 2 stage kW 12 12 12 18 18 18 18 18 Filter Metal Frame Deep V dry media disposable G4 type filter Nominal W x D x H mm 800 x 800 x 100 Qty 2 2 2 2 2 Electrical 400V 50Hz 3Phase Std DX unit only RFLA 24 0 26 1 33 1 42 6 48 4 53 4 42 0 46 2 Water Cooled Condenser 316SS Brazed Plate Heat Exchanger 3 Way MBV No of Condensers 2 2 No of MBV 2 2 Valve Sze DN25 DN25 DN25 DN25 DN25 DN32 DN25 DN25 Flow l s I I 1 3 1 6 2 0 2 5 2 9 2 2 2 6 PD kPa 46 6l 56 69 89 74 47 60 Unit Connections Glycol Supply I D 35 35 35 35 35 35 35 35 Qty 2 2 Glycol Return O D 35 35 35 35 35 35 35 35 Qty 2 2 Drain Barb mm 19 19 19 19 19 19 19 19 Hum Supply BSP M 1 2 1 2 1 2 1 2 1 2 1 2 1 2 1 2 Unit Dimensions amp Weight Width mm 853 853 853 1703 1703 1703 1703 1703 Depth mm 873 873 873 873 873 873 873 873 Height mm 1970 Unit Weight kg 350 360 370 600 610 630 650 670 Unit Footprint Unit only m 0 74 0 74 0 74 1 49 1 49 1 49 1 49 1 49 Incl Service area m 1 47 1 47 1 47 2 93 2 93 2 93 2 93 2 93 Service Access min mm 850 Notes 10 10 60 2 2 2 DN25 3 3 56 35 2 35 2 19 1 2 1703 873 700 1 49 2 93 16 020 2
76. frigeration capacity provided by each compressor is 20 to 100 of full capacity Capacity variation is derived by capacity modulation of the Digital scroll compressor from a loaded state to an unloaded state in 20 second band to meet the cooling capacity requirement e g for a room load of 7kW with a TOKVW unit the Digital Scroll compressor the compressor would be loaded for 14 seconds and unloaded for 6 seconds The cycle time of around 6 of a standard on off type compressor system This provides a precise temperature control showing an almost linear line temperature graph Since the digital scroll compressor does not have to cycle on and off to meet the room load it s reliability further increased Compressor Modulation Line Temp Temp 8 Technical Data Manual amp Li eb er t Liebert PEX Large Frame Design The Ultimate system Digital Scroll Compressor and EC fan technology e By the combination of the Digital Compressors and EC Fan managed by the iCOM controls the ultimate control of conditions can be provided by the Liebert PEX unit which has the ability to match the room load e The capacity modulation compressor refrigeration capability and the variable air side capacity provided by the Liebert PEX unit ranges from 20 to 100 of full capacity e This provides a precise temperature control resulting in an almost linear line temperature graph e Since the digital scroll compressor does not have to cycle on and off to meet the ro
77. hermal expansion valve high sensitivity refrigerant sight glass large capacity filter drier with rotalock connections and charging access ports in each circuit Thermal Expansion Valve To provide quick and accurate Refrigerant system set up and calibration the thermal expansion valve T XV shall be accessible to allow system set up and calibration while the unit is running 4 2 Technical Data Manual 0 Li ebert Liebert PEX Large Frame Guide Specifications Evaporator Coil The evaporator coil shall be a V coil for upflow A coil for downflow incorporating draw through air design for uniform air distribution The coil shall be constructed of enhanced surface aluminium fins mechanically bonded to enhanced surface copper tubes The coil frame is fabricated from Hot dipped galvanized sheetmetal and the stainless steel condensate drip tray The evaporator drain tray shall incorporate double sloped gutters for condensate removal The cooling coil shall be a maximum of 7 rows and 550 fins per metre 14 FPI Dehumidification FC Fan Dual Cool and Free Cool units Standard HVAC dehumidification methology utilised Dehumidification FC Fan Compliant Scroll Compressor Air amp Water Cooled Units A specific dehumidification cycle split suction shall operate by reducing the operating surface temperature in a section of the refrigeration coil by means of a solenoid valve on the suction header Room loads as low as 40 for 2 compressor model
78. iance e An entire cycle lasts 20 seconds Nominal default setting Solenoid Modular 10 Secs 10 Secs 7 Chamber gt 100 Capacity al N ak Bleed Hole c 0 Capacity 20 Secs 50 Load Digital Scroll Capacity Modulation examples Full Capacity JUL Zero Capacity JULA ee Sec 14 6 Sec See ee Sec IO Sec 27 of full capacity 50 of full capacity Application of Digital Scroll in Liebert PEX e Better room condition control by adapting to the load e Better temperature control by adapting to latent conditions e Better humidity control by adapting to RH latent conditions e Improved reliability by avoiding cycling e Lower operating costs due to more efficient operation e Available on Air Cooled Water Cooled Glycol Cooled Dual Cool and Free Cool models e Both compressors are Digital Scroll type on 2 compressor models Liebert PEX Digital Key Benefits e No Electromagnetic Interference e Easy Oil Return e Flexibility e Immediate adaptation to changing load e Energy saving solution e Capability to grow together with your business e Precise Control e More precise room temperature control Room Temp 25 C ee ee ee 0 5 C Modulating Capacity Control from 10 to 75kW Time 6 Technical Data Manual amp Li eb er t Liebert PEX Large Frame Design Increased Reliability and Compressor life e Increasing compressor cycling takes a toll on compressor life e Liebert Digital Scroll compress
79. ical data on optional equipment 4 All information and Technical Data are subject to change without notice 5 The Liebert PEX units are now also available with EC Fans The switching action of the EC Fan power controls may interact with emergency backup enerators or UPS systems 0 Liebert Technical Data Manual 2 9 Notes Technical Data Liebert PEX Large Frame Upflow DX Scroll compressors FC fans Free Cool 50Hz Model Size PEX 1020 1025 1030 2035 2045 2055 2040 2050 2060 3070 3080 3090 Rated Capacity 24 C DB 50 RH 54 Condensing CW Based on 7 C EWT 12 C LWT and Glycol 30 DX Total kW 17 9 20 9 27 0 36 6 41 0 48 3 36 7 42 7 54 3 66 5 73 3 76 8 Sensible kW 17 8 20 2 25 0 34 8 39 3 44 6 36 1 40 7 50 I 64 0 66 7 72 6 Free Cool Total kW 21 2 23 2 26 1 43 5 48 9 52 4 45 8 50 2 57 4 76 5 76 5 84 I Sensible kW 18 4 20 6 24 0 36 0 41 0 44 6 37 9 42 6 50 1 65 7 65 7 74 2 Rated Capacity 24 C DB 45 RH 54 C Condensing CW Based on 7 C EWT 12 C LWT and Glycol 30 DX Total kW 17 9 20 9 26 5 35 4 41 0 47 0 36 7 42 4 53 3 66 5 71 3 75 7 Sensible kW 17 9 20 7 26 3 35 1 40 6 46 6 36 0 42 1 52 9 64 I 70 8 75 1 Free Cool Total kW 18 8 20 3 23 6 38 6 43 1 46 2 40 4 44 6 51 0 67 3 67 3 74 5 Sensible kW 18 2 20 3 23 6 35 3 40 4 44 0 37 3 42 0 49 6 64 9 64 9 73 4 Air Flow m3 h 5 400 6 300 7 870 9 720 11 610 13 030 10 440 12 240 15 390 19 190 19 190 22 770 Evaporator Fan Forward curve FC centrifugal fan induction motor auto tensioning b
80. ield supplied and installed on the supply side of each water circuit by the contractor Water Cooled Condenser 2 3 Way Motorised Ball Valve with Bypass Compressorised Systems Only The water cooled condenser heat exchanger shall be of the high efficiency counterflow stainless steel brazed plate type rated for 3000 kPa maximum working pressure Water glycol flow shall be controlled by a 2 way 3 way factory fitted pressure actuated water regulating valve rated for 4000 kPa maximum working pressure Water glycol requirements for the unit shall be Il sof ____ C entering water based ona ___ K C rise and produce a maximum pressure drop of 150 kPa Water Cooled Condenser 2 3 Way Motorised Ball Valve Dual Cool amp Free Cool Units The water cooled condenser heat exchanger shall be of the high efficiency counterflow stainless steel brazed plate type rated for 3000 kPa maximum working pressure Water glycol flow shall be controlled by a 2 way 3 way factory fitted motorised ball valve MBV rated for 4000 kPa maximum working pressure Water glycol requirements for the unit shall be Il sof ____ C entering water based ona ____ K C rise and produce a maximum pressure drop of 150 kPa Free Cool units Free cool units shall consist of glycol water cooled DX compressorized system with the addition of a chilled water econo coil a 2 3 way motorized ball valve and a comparative temperature sensor The system shall be able to functi
81. ification Control Infrared kg h Opt Electrode kg h 4 5 5 4 5 5 2 via HGBP 4 5 5 Dehumidification control Variable EC fan speed Reheat Single stage electric heater elements I stage kW Opt 2 stage kW 6 12 6 12 6 12 LP cut out in auto reset 140 420 HP cut out manual reset 2800 10 10 9 18 10 10 9 18 Filter Metal Frame Deep V dry media disposable G4 type filter Nominal VY x D x H mm Qty Electrical 400V 50Hz 3Phase Std DX unit only RFLA 22 7 24 8 31 3 40 0 45 8 10 10 18 10 10 18 800 x 660 x 100 2 53 4 Water Cooled Condenser 316SS Brazed Plate Heat Exchanger 3 Way MBV No of Condensers No of MBV Valve Size Flow l s PD kPa Unit Connections Glycol Supply I D Qty Glycol Return O D Qty Drain Barb mm Hum Supply BSP M Unit Dimensions amp Weight Width mm Depth mm Height mm Unit Weight kg Unit Footprint Unit only m Incl Service area m Service Access min mm Notes DN25 I I 48 35 l 35 l 19 1 2 853 873 350 0 74 1 47 DN25 1 3 63 35 l 35 l 19 1 2 853 873 360 0 74 1 47 DN25 1 6 54 35 35 19 1 2 853 873 370 0 74 1 47 l l DN25 2 0 69 35 l 35 l 19 1 2 1703 873 600 1 49 2 93 l l DN25 2 5 92 35 l 35 l 19 1 2 1703 873 610 1 49 2 93 DN32 2 9 75 3
82. lar construction protected by thermal safety switches The heating system shall include dual safety protection through loss of air and manual reset high temperature controls COMPRESSORISED SYSTEMS Scroll Compressor The compressor shall be of the high efficiency Compliant Scroll design with an E E R energy efficiency ratio of not less than BTUH watt C O P of not less than _ at ARI rating conditions The compressor shall be charged with polyolester oil POE and designed for operation on HCFC R22 or HFC R407C Each compressor shall have internal motor protection and be mounted on vibration isolators Digital Scroll Compressor The compressor shall be of the high efficiency Digital Scroll design with an E E R energy efficiency ratio of not less than BI UH watt C O P of not less than at ARI rating conditions The compressor shall be charged with polyolester oil POE and designed for operation on HFC R407C Each compressor shall have standard internal motor protection and be mounted on vibration isolators Refrigeration Circuit The refrigeration system shall be of the direct expansion type with two cooling stages and incorporate one or two hermetic scroll compressors complete with crankcase heaters and rotalock connections A hot gas bypass solenoid valve shall be used on single compliant scroll compressor models The system shall include a manual reset high pressure control auto reset low pressure switch externally equalised t
83. le Safety controls kPa LP cut out in auto reset 140 420 HP cut out manual reset 2800 Humidification Control Infrared kg h 45 4 5 4 5 10 10 10 10 10 Opt Electrode kg h 5 5 5 10 10 10 10 10 Dehumidification control Reduced air flow Reheat Single stage electric heater elements I stage kW 6 6 6 9 9 9 9 9 Opt 2 stage kW 12 12 12 18 18 18 18 18 Filter Metal Frame Deep V dry media disposable G4 type filter Nominal W x D x H mm 800 x 660 x 100 Qty 2 2 2 2 2 Full Load Current 400 Volts 3 phase N E 50 Hz Supply Std DX unit only RFLA 23 4 24 8 30 4 40 0 40 8 43 6 54 8 60 4 Water Cooled Condenser 316SS Brazed Plate Heat Exchanger 3 Way MBV Opt 2 Way MBV No of Condensers 2 2 2 2 No of MBV 2 2 2 2 Valve Size DN25 DN25 DN25 DN25 DN25 DN25 DN25 DN25 Flow I s I I 1 2 1 4 1 9 2 2 2 5 2 8 3 6 PD kPa 49 65 62 67 51 65 63 59 Unit Connections Hot Gas O D 22 22 22 22 22 22 22 22 Qty 2 2 2 2 Liquid O D 16 16 16 16 16 16 16 16 Qty 2 2 2 2 Condenser Water Supply I D 35 35 35 35 35 35 35 35 Qty 2 2 2 2 Condenser Water Return O D 35 35 35 35 35 35 35 35 Qty 2 2 2 2 CW Supply I D 25 25 25 35 35 35 35 35 CW Return O D 25 25 25 35 35 35 35 35 Drain Barb mm 19 19 19 19 19 19 19 19 Hum Supply BSP M 1 2 1 2 1 2 1 2 1 2 1 2 1 2 1 2 Unit Dimensions amp Weight Width mm 853 853 853 1703 1703 1703 1703 1703 Depth mm 873 873 873 873 873 873 873
84. ll Display TH Sensor Digit 24 Order Identifier L Large Display TH sensor 0 None Digit 13 Re Heating L Air Cooled Long Pipe Run Kit gt 30 metres 0 None X SFA included I Electric heating Std Stage Digit 25 Order Identifier 2 Electric heating Opt 2 nd Stage Up 0 None Digit 14 Filtration X SFA included 2 G4 EU4 gravimetric ref MERV 8 Clogged Filter 3 F5 EUS dust spot Clogged Filter Digit 15 Coil and Valves S Standard Dx Air Cooled Coil 4 Coil DX AIl valves High Pressure MBV DX 2 way CW coil 2 way K Coil DX AIl valves High Pressure MBV DX 3 way CW coil 3 way N Coil DX All valves High Pressure MBV DX 2 way CW coil 3 way P Coil DX AIl valves High Pressure MBV DX 3 way CW coil 2 way Technical Data Manual 3 W Liebert Design Liebert PEX Large Frame Features and Benefits iCOM Intelligent Communications and Monitoring The LiebertiCOM control system offers the highest capabilities of unit control communication and monitoring of Liebert mission critical cooling units Liebert iCOM provides advanced diagnostic and maintenance support enabling multiple units to communicate and work together as a team to precisely control temperature and humidity across a room In addition the iCOM network provides a choice of Teamwork Lead Lag and Cascade functions Control Disables Humidifier ON Humidifier ON Dehumidification Unit 1 Operating UNBALANCED LOAD NO LOAD I 1 r l i I I i I
85. m the front of the units above the raised floor whilst the EC fan models are supplied with a lifting lowering device for start up amp service access With front removable doors open Liebert PEX Large Frame Upflow unit Upflow models available with e FC Forward Curve fans e EC Backward Curve fans e The fans are serviceable and removable from the front of the unit l 2 Technical Data Manual Liebert PEX Large Frame Design The basic model can be defined by first 10 digits whilst the unit is fully defined by 25 digits Configuration Nomenclature 1 2 31 4151617 8 9 10 II 12 13 14 15 16 17 18 19 20 21 22 23 24 25 Digit I Model Range Digit 16 Enclosure options P PEX I Standard Color Charcoal grey Digit 2 Modules 2 Colour Special color 2 Number of Modules Bays 6 Color Charcoal grey w Double skin Digit 3 Cooling Capacity kW Digit 17 Mains Switch High Voltage Option 0 9 Nominal Gross Cooling Capacity kW 0 None Digit 4 Cooling Capacity kW D Main non Locking Disconnect 0 9 Nominal Gross Cooling Capacity kW Digit 18 Lock Out Low Voltage Option Digit 5 Cooling Capacity kW 0 None 0 9 Nominal Gross Cooling Capacity kW H Reheat amp Humidity Lockout Digit6 Air Discharge Digit 19 Monitoring U Upflow O Monitoring No Card D Downflow I Monitoring IS WEB only Digit 7 System Type 2 Monitoring Two ISWEB A Air Cooled 3 Monitoring 15485 only W Water Cooled 4 Monitoring Two 18485 G Glycol Cooled 5 Monitoring ISWEB amp IS
86. mblies 2 2 2 2 2 2 2 3 3 3 3 Std Motor kW 2 2 2 2 3 0 3 0 2 2 2 2 2 2 2 2 2 2 3 0 3 0 2 2 2 2 3 0 3 0 Evaporator Coil Copper tubes with rifled bore tubes louvred aluminium fins No of rows 3 3 3 4 3 3 3 3 3 4 4 3 3 3 4 Fin series FPM FPI 550 14 Compressor Copeland Compliant Scroll with Crankase Heater No of compressors 3 3 3 4 3 3 3 3 3 4 4 3 3 3 4 Unit cooling steps 2 via HGBP 2 via Compressors Safety controls kPa LP cut out in auto reset 140 420 HP cut out manual reset 2800 Humidification Control Infrared kg lh 4 5 4 5 45 4 5 10 10 10 10 10 10 10 10 10 10 IO Opt Electrode kg h 5 5 5 5 10 10 10 10 10 10 10 10 10 10 10 Dehumidification control Partialised Coil Split Suction Solenoid Control Reheat Single stage electric heater elements stage kW 5 5 5 5 10 10 10 10 10 10 10 10 10 10 10 Opt 2 stage kW 12 12 12 12 18 18 18 18 18 18 18 24 24 24 24 Filter Metal Frame Deep V dry media disposable G4 type filter Nominal W x D x H mm 800 x 660 x 100 Qty 2 2 2 2 2 2 2 3 3 3 3 Full Load Current 400 Volts 3 phase N E 50 Hz Supply Std DX unit only RFLA 24 0 26 1 33 1 35 0 426 484 534 420 462 602 640 653 71 823 92 3 Water Cooled Condenser 316SS Brazed Plate Heat Exchanger 3 Way MBV Opt 2 Way MBV No of Condensers 2 2 2 2 2 2 2 2 No of MBV 2 2 2 2 2 2 2 2 Valve Size DN25 DN25 DN25 DN25 DN25 DN25 DN32 DN25 DN25 DN25 DN25 DN25 DN25 DN25 DN32 Flow Il s 1 1 1
87. mperature The iCOM control shall be compatible with all Liebert remote monitoring and control devices Options are available for BMS interface via MODbus BACNet and SNMP The iCOM control processor shall be microprocessor based with a 128x64 dot matrix graphic front monitor display and control keys for user inputs mounted in an ergonomic aesthetically pleasing housing The controls shall be menu driven The display amp housing shall be viewable while the unit panels are open or closed The display shall be organized into three main sections User Menus Service Menus and Advanced Menus 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 A 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 User Menus Shall be Defined as Follows 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
88. nnected in the field to a matched air cooled condenser and then pressure tested dehydrated and charged with either R22 or R407C refrigerant In addition the following services are required to make the system operational electrical supply to the indoor unit electrical supply to the air cooled condenser humidifier coil drain humidifier water supply Refrigeration Piping All refrigeration piping joints shall be high temperature silver brazed Avoid using solders containing hazardous substances Any applicable local codes relating to fire safety in terms of pressure relief must be observed Standard industry procedures must be followed for selection and placement of pipe supports system evacuation oil addition and charging with refrigerant Consideration must be given to pipeline pressure drop oil return to the compressor avoidance of oil logging in parts of the system and minimisation of noise and vibration Pipe sizing tables are provided in PEX User manual for each model and are for equivalent lengths which include an allowance for bends They are suggestions only and it is the installer s responsibility to confirm that sizes are appropriate for site conditions Note An optional long line pipe kit comprising a liquid line shutoff valve and non return valve is required for equivalent lengths in excess of 30 metres Consult the factory whenever the equivalent length exceeds 60m or if the vertical separations exceed those
89. nser Water Supply O D 35 35 35 35 35 35 35 Qty 2 2 Glycol Return O D 35 35 35 35 35 35 35 Qty 2 2 Drain Barb mm 19 19 19 19 19 19 19 Hum Supply BSP M 1 2 1 2 1 2 1 2 1 2 1 2 1 2 Unit Dimensions amp Weight Width mm 853 853 853 853 1703 1703 1703 Depth mm 873 873 873 873 873 873 873 Height mm 1970 Unit Weight kg 350 360 370 380 600 650 670 Unit Footprint Unit only m 0 74 0 74 0 74 0 74 1 49 1 49 1 49 Incl Service area m 1 47 1 47 1 47 1 47 2 93 2 93 2 93 Service Access min mm 850 Notes Glycol Cooled 2060 51 3 50 9 51 1 51 0 15 500 3 1 LP cut out in auto reset 140 420 HP cut out manual reset 2800 10 10 54 8 DN25 3 0 49 35 35 19 1 2 1703 873 700 1 49 2 93 2070 61 4 58 3 61 1 60 6 17 480 3 1 10 10 60 4 DN25 3 8 6l 35 35 19 1 2 1703 873 720 1 49 2 93 Liebert PEX Large Frame 50Hz 3070 69 0 68 5 68 7 68 6 23 000 2 3 10 10 12 24 61 4 DN25 4 1 7 35 35 19 1 2 2553 873 970 2 23 4 40 I All rated capacities are nominal values based on an ESP for Downflow 20pa and for Upflow 50Pa at sea level for R407C amp R22 For net capacities deduct fan input power Refer to the Liebert PEX Rating Program for specific input conditions air flow and configuration 2 Minimum unit depth without front panels and hinges is 841mm Minimum raised floo
90. ntegral part of the system and withdrawable from the front of the unit Filtration shall be provided by deep V form dry disposable media housed in a metal frame The rated efficiency shall be to G4 EU4 MERV8 Standards Metal frame deep V form filter panel Thermal Expansion Valve To provide quick and accurate refrigerant system set up and calibration the thermal expansion valve TXV is accessible via an access hatch to allow system set up and calibration while the unit is running 4 Technical Data Manual 0 Li eb ert Liebert PEX Large Frame Design Model configurations DX Air Cooled with Air Cooled Condenser Units UP FLOW EC FAN UP FLOW FO FAN DOWN FLOW EC FAN DOWN FLOW FO FAN w Liebert fecmicalDaaManual 1 15 Design Liebert PEX Large Frame Model configurations DX Water Cooled with Cooling Tower Units EC Fan Rg Water Cooled Condenser Air Fiter EP UP FLOW FG FAN Air Filter DX Coil IR Humsdifier Water Cooled Condenser eae eats ET ja des ego EC Fan DOWN FLOW FG FAN DOWN FLOW EC FAN 16 Technical Data Manual 0 Li eb e rt Liebert PEX Large Frame Design Model configurations DX Glycol Cooled with Closed Circuit Units UP FLOW FC FAN DOWN FLOW FG FAN DOWN FLOW EC FAN w Liebert OO femialDetaManual 17 Design Liebert PEX Large Frame Model configurations Air Cooled with Dual Cool Units UP FLOW FC FAN UP FLOW EG FAN
91. of fan assemblies l l l l 2 2 2 2 2 Std Motor kW 2 3 2 3 3 1 3 1 2 3 2 3 2 3 3 1 3 1 Evaporator Coil Copper tubes with rifled bore tubes louvred aluminium fins No of rows 3 3 4 4 3 3 3 4 4 Fin series FPM FPI 550 14 Compressor Copeland Compliant Scroll with Crankase Heater No of compressors 2 2 2 2 Unit cooling steps Variable Safety controls kPa LP cut out in auto reset 140 420 HP cut out manual reset 2800 Humidification Control Infrared kg h 4 5 4 5 4 5 4 5 10 10 10 10 10 10 Opt Electrode kg h 5 5 5 5 10 10 10 10 10 10 Dehumidification control Reduced air flow Reheat Single stage electric heater elements I stage kW 6 6 6 6 9 9 9 12 Opt 2 stage kW 12 12 12 12 18 18 18 18 18 24 Filter Metal Frame Deep V dry media disposable G4 type filter Nominal W x D x H mm 800 x 660 x 100 Qty 2 2 2 2 2 3 Full Load Current 400 Volts 3 phase N E 50 Hz Supply Std DX unit only RFLA 23 4 24 8 30 4 33 2 40 0 40 8 43 6 54 8 60 4 61 4 Water Cooled Condenser 316SS Brazed Plate Heat Exchanger 3 Way MBV Opt 2 Way MBV No of Condensers l l l l l 2 2 2 2 2 No of MBV 2 2 2 2 2 Valve Size DN25 DN25 DN25 DN25 DN25 DN25 DN25 DN25 DN25 DN25 Flow l s I I 1 2 1 4 1 8 1 9 2 1 2 4 2 9 3 6 3 8 PD kPa 50 63 65 56 67 5I 64 66 58 65 Unit Connections Hot Gas O D 22 22 22 22 22 22 22 22 22 22 Qty 2 2 2 2 2 Liquid O D 16 16 16 16 16 16 16 16 16 16 Qty 2 2 2 2 2 Condenser
92. om load ireliability is maximised e Rivals standard units require e on off compressor cycling decresed reliability e require more hours of Humidifier operation energy efficient e require compressors to run longer at 100 capacity and then require reheat to to maintain room temperature inefficient operation Temp Compressor Modulation Line p 7 TT Eg me ETTE es 5 Load REA SSRS Se eee w Liebert Technical Data Manual 9 Design Liebert PEX Large Frame Main Features of Liebert PEX Models Upflow models available with e FC Forward Curve fans e EC Backward Curve fans e The fans are serviceable and removable from the front of the units Downflow models available with e FC Forward Curve fans e EC Backward Curve fans with in floor operation which is the optimum position for energy efficient performance e The fans are serviceable and removable from the front of the units above the raised floor whilst the EC fan models are supplied with a lifting lowering device for start up amp service access He Raised Floor dn e hal FJERN Ta ele att OOOO fate aot eres th OE 2 EC Fan Transport Mode Downflow EC Fan Operation Mode for maximum efficiency Downflow Requires a minimum of 325mm from raised floor 10 Technical Data Manual Oy Li eb ert Liebert PEX Large Frame Design Features and Benefits Forward Curve FC Fans e Forward curve double width double inlet DVVDI centrifugal fans co
93. on as a DX system and or a modulating chilled water system The primary cooling mode shall be DX glycol water cooled Switchover between the two cooling modes shall be performed automatically by the control system The fluid circuit shall include a 2 3 way modulating ball valve designed for up to 4000 kPa The actuator valve combination shall have a maximum close off pressure of 1380 kPa The microprocessor positions the valve in response to room conditions The Free Cool units function via a field supplied Closed circuit Radiator RAD cooler s pumps and associated piping and components Dual Cool Units Dual cooling units shall consist of an air or water cooled compressorised system with the addition of a chilled water econo coil a 2 3 way motorised ball valve MBV and a comparative temperature sensor The system shall be able to function as a modulating chilled water system or as a compressorised system The primary cooling mode shall be chilled water Switchover between the two cooling modes shall be performed automatically by the iCOM controller The water circuit shall include a 2 3 way modulating ball valve designed for up to 4000 kPa The actuator valve combination shall have a maximum closeoff pressure of 13 8 bar The microprocessor positions the valve in response to room conditions Cooling capacity will be controlled by bypassing chilled water around the coil The modulating valve travel for dehumidification shall be proportional UNIT S
94. onnections Glycol Supply I D 35 35 35 35 35 35 35 35 35 35 42 42 42 42 Qty 2 2 2 2 2 2 2 2 Glycol Return O D 35 35 35 35 35 35 35 35 35 35 42 42 42 42 Qty 2 2 2 2 2 2 2 2 Drain Barb mm 19 19 19 19 19 19 19 19 19 19 19 19 19 19 Hum Supply BSP M 1 2 1 2 1 2 1 2 1 2 1 2 1 2 1 2 1 2 1 2 1 2 1 2 1 2 1 2 Unit Dimensions amp Weight Width mm 853 853 853 1703 1703 1703 1703 1703 1703 1703 2553 2553 2553 2553 Depth mm 873 873 873 873 873 873 873 873 873 873 873 873 873 873 Height mm 1970 2070 1970 2070 Unit Weight kg 350 360 370 600 610 630 650 670 700 720 970 990 1030 1050 Unit Footprint Unit only m 0 74 0 74 0 74 1 49 1 49 1 49 1 49 1 49 1 49 1 49 2 23 2 23 2 23 2 23 Incl Service area m 1 47 1 47 1 47 2 93 2 93 2 93 2 93 2 93 2 93 2 93 4 40 4 40 4 40 4 40 Service Access min mm 850 Notes All rated capacities are nominal values based on an ESP for Downflow 20pa and for Upflow 50Pa at sea level for R407C amp R22 For net capacities deduct fan input power Refer to the Liebert PEX Rating Program for specific input conditions air flow and configuration 2 Minimum unit depth without front panels and hinges is 841mm Minimum raised floor height 325mm for EC fan units Weights shown are for water cooled DX models only 3 Input power supply 400V 15 50Hz 2 RFLA is for the standard configuration unit only and excludes all heat rejection equipment Chillers and Pumps etc RFLA bas
95. onnectivity iCOM Ethernet Cable Certified CAT5e patch cable with fully moulded ends used for connecting an iCOM to a network switch Available in lengths of 10 15 20 and 30 metres 33 50 65 and 100 feet iCOM Ethernet Crossover Cable Certified CAT 5e crossover cable with fully moulded ends for networking 2 Small Graphics Display iCOM units together are available in lengths of 10 20 and 30 metres iCOM Do Card Option iCOM DO card option provides alarm and status outputs for your PEX unit Long Line Pipe Kit Option LLVS Air Cooled Systems A factory fitted liquid line solenoid valve and field installed non return valve supplied loose shall be provided for each refrigeration circuit to prevent liquid refrigerant migration to the evaporator compressor during off cycles in air cooled installations Note Mandatory for pipe runs in excess of 30 metres Reheat Humidifier Lockout Emergency Power Lockout A field supplied 24VAC source to field wiring terminals in the electrical panel will lockout the electric heaters and humidifier Common Alarm Terminals Additional Extends the standard single common alarm terminal to a total of three 3 voltage independant common alarm terminals normally open for remote unit alarm indication Contacts rated at 24VAC 3 amps Liquitect Unit Shutdown Sensor LT410 Liquitect signal shuts down unit and provides one 1 N O contact for field alarm connection Floor Stand The floor stand shall
96. ors automatically adjust to yearly increase in heat load providing significantly greater component life than other compressor technologies Cumulative Compressor Cycles As Load Grows From 50 To 100 60 Load 70 Load 80 Load 90 Load 120000 Single Compressor 100000 Cumulative Compressor Cycles Liebert PEX The combination of Digital Scroll Compressor and EC Fans to provide the Ultimate Energy Machine e A combination of 3 energy saving features to provide up to 50 energy savings e Digital Scroll e Capacity modulation e Energy saving e Quick adaptation to changing heat loads e EC Fans e Variable air flow e Energy saving e iCOM Control e Intelligent control combines operation of the Digital Compressors and EC fans w Liebert reehmielDeteMonual 1 7 Design Liebert PEX Large Frame Standard Compressor and EC fan system Capacity variation is derived by cycling the compressor ON or OFF to meet the room load e g for a room load of 7kW with a OkW unit the compressor would be required to operate 70 of the time say 3 5 minutes on for 1 5 minutes off However for reliability requirements the compressor normally needs to be on for 3 mins and off for 3 mins irrespective of temperature requirements So the saw tooth effect is even more exaggerated Temp 4 2 min 1 8 min 42min 1 8 min Temp Digital Scroll Compressor Cooling Capacity is provided by capacity modulation of the compressor Therefore the re
97. otice 5 The Liebert PEX units are now also available with EC Fans The switching action of the EC Fan power controls may interact with emergency backup generators or UPS systems Technical Data Manual 2 3 W Liebert Technical Data Liebert PEX Large Frame Upflow DX Scroll compressors FC fans Glycol Cooled 50Hz Model Size PEX 1020 1025 1030 1035 2035 2045 2055 2040 2050 2060 2070 3070 3080 3090 3100 Rated Capacity 24 C DB 50 RH 54 Condensing Total kW 17 9 20 9 27 0 30 3 366 41 0 48 3 367 42 7 54 3 61 8 66 5 73 3 79 8 90 0 Sensible kW 17 8 20 2 250 27 1 34 8 39 3 44 6 36 1 40 7 50 1 54 6 64 0 66 7 74 6 80 7 Rated Capacity 24 C DB 45 RH 54 Condensing Total kW 17 9 20 9 26 5 29 2 35 4 41 0 47 0 367 42 4 53 3 59 8 66 5 71 3 78 7 87 7 Sensible kW 179 20 7 26 3 28 8 35 1 40 6 46 6 36 0 42 1 52 9 58 1 64 1 70 8 78 1 86 2 Air Flow mh 5 400 6 300 7 870 7920 9 720 11 610 13 030 10 440 12 240 15 390 15480 19 190 19 190 22 770 22 860 Evaporator Fan Forward curve FC centrifugal fan induction motor auto tensioning belt drive No of fan assemblies 2 2 2 2 2 2 2 3 3 3 3 Std Motor kW 2 2 2 2 3 0 3 0 2 2 2 2 2 2 2 2 2 2 3 0 3 0 2 2 2 2 3 0 3 0 Evaporator Coil Copper tubes with rifled bore tubes louvred aluminium fins No of rows 3 3 3 4 3 3 3 3 3 4 4 3 3 3 4 Fin series FPM FPI 550 14 Compressor Copeland Compliant Scroll with Crankase Heater No of compressors 2 2 2 2 2 2 2 2 Unit cooling steps 2 via HGB
98. r flow and configuration 2 Minimum unit depth without front panels and hinges is 841mm Minimum raised floor height 325mm for EC fan units Weights shown are for water cooled DX models only 3 Input power supply 400V 15 50Hz 2 RFLA is for the standard configuration unit only and excludes all heat rejection equipment Chillers and Pumps etc RFLA based on standard unit Refer to Liebert PEX Rating Program amp User Manual for electrical data on optional equipment 4 All information and Technical Data are subject to change without notice 5 The Liebert PEX units are now also available with EC Fans The switching action of the EC Fan power controls may interact with emergency backup generators or UPS systems 2 8 TechncolDotaMool ao tiebert Notes Liebert PEX Large Frame Technical Data Upflow Digital Scroll Compressors EC fans Dual Cool 50Hz Model Size PEX 1020 1025 1030 2035 2040 2050 2060 3070 Rated Capacity 24 C DB 50 RH 45 Condensing CW Based on 7C EWT 12 C LWT DX Total kW 19 9 22 4 26 5 36 6 40 7 45 8 54 2 71 9 Sensible kW 19 8 22 3 24 9 35 0 39 0 44 6 50 4 71 4 CW Total kW 25 7 28 0 28 7 48 6 52 2 59 0 63 1 92 6 Sensible kW 22 2 24 6 25 3 38 9 42 2 49 1 53 3 79 0 Rated Capacity 24 C DB 45 RH 45 Condensing CW Based on 7 C EWT 12 C LWT DX Total kW 19 8 22 3 26 1 36 3 40 4 45 5 53 1 71 8 Sensible kW 19 7 22 2 25 9 36 1 40 1 45 0 52 7 71 5 CW Total kW 22 7 25 0 25 8 42 9 46 0 52 4 55 5 81 3 Sensible kW 22
99. r height 325mm for EC fan units Weights shown are for water cooled DX models only 3 Input power supply 400V 15 50Hz 2 RFLA is for the standard configuration unit only and excludes all heat rejection equipment Chillers and Pumps etc RFLA based on standard unit Refer to Liebert PEX Rating Program amp User Manual for electrical data on optional equipment 4 All information and Technical Data are subject to change without notice 5 The Liebert PEX units are now also available with EC Fans The switching action of the EC Fan power controls may interact with emergency backup generators or UPS systems 2 6 Technical Data Manual W Liebert Liebert PEX Large Frame Technical Data Upflow DX Scroll compressors FC fans Air Water Cooled Dual Cool 50Hz Model Size PEX 1020 1025 1030 2035 2045 2055 2040 2050 2060 3070 3080 3090 Rated Capacity 24 C DB 50 RH 45 Condensing CW Based on 7 C EWT 12 C LWT DX Total kW 19 4 22 1 29 2 36 5 44 4 52 0 39 5 45 7 579 71 8 79 4 87 2 Sensible kW 18 3 20 7 259 34 8 40 7 46 37 2 42 0 51 6 66 2 69 2 77 5 CW Total kW 232 25 3 28 5 47 5 53 4 57 3 50 0 54 9 62 7 83 6 83 6 91 9 Sensible kW 19 5 21 7 25 4 38 0 43 4 47 2 40 45 1 53 0 69 5 69 5 78 5 Rated Capacity 24 C DB 45 RH 45 Condensing CW Based on 7C EWT I2CLWT DX Total kW 19 3 21 9 28 I 36 5 42 9 49 7 39 5 44 5 56 4 70 0 76 7 83 5 Sensible kW 19 1 21 7 27 4 36 2 42 6 48 8 39 2 44 2 55 1 69 5 73 5 82 2 CW Total kW 20 5 22 2
100. r specific input conditions air flow and configuration 2 Minimum unit depth without front panels and hinges is 841mm Minimum raised floor height 325mm for EC fan units Weights shown are for water cooled DX models only 3 Input power supply 400V 15 50Hz 2 RFLA is for the standard configuration unit only and excludes all heat rejection equipment Chillers and Pumps etc RFLA based on standard unit Refer to Liebert PEX Rating Program amp User Manual for electrical data on optional equipment 4 All information and Technical Data are subject to change without notice 5 The Liebert PEX units are now also available with EC Fans The switching action of the EC Fan power controls may interact with emergency backup generators or UPS systems 2 2 Technical Daa Man OO be Liebert PEX Large Frame Technical Data 50Hz 3070 71 9 71 4 71 8 71 5 23 000 2 3 Upflow DX Digital Scroll Compressors EC fans Air Water Cooled Model Size PEX 1020 1025 1030 1035 2035 2040 2050 2060 2070 Rated Capacity 24 C DB 50 RH 45 Condensing Total kW 19 9 22 4 26 7 32 8 36 6 40 7 45 8 54 3 66 3 Sensible kW 19 8 22 3 26 1 29 4 35 0 39 0 44 6 52 7 60 2 Rated Capacity 24 C DB 45 RH 45 Condensing Total kW 19 8 22 3 26 5 31 4 36 3 40 4 45 5 54 2 64 1 Sensible kW 19 7 22 2 26 2 31 2 36 1 40 1 45 0 53 8 63 7 Air Flow m h 6 500 7 500 7 800 8 500 10 000 11 200 13 800 15 500 17 480 Evaporator Fan Backward curve EC motor direct drive No
101. rence iCOM Wall Mount LARGE Graphic Display The iCOM Large Graphic Display Kit shall include an ergonomic aesthetically pleasing housing a 320x240 dot matrix graphic display and a 230V 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 communications VNSA Network Switch The vNSA network switch is designed to connect multiple iICOM equipped cooling units to form a network and allow the units to communicate and function as a team Available with or without a Large Graphics Display the vNSA can support up to 14 Small Graphics Display units Supplied in a wall mount enclosure with key lock 0 Liebert Technical Data Manual 4 7 Guide Specifications Liebert PEX Large Frame The v NSA requires 100 240VAC single phase power for proper operation A universal power supply 12V 1 5A is installed inside the enclosure with a hard wired connection for 120V or 230V operation IntelliSlot WEB Card The Liebert IntelliSlot Web card provides HTTP browsing SNMP and WEB management capability of Liebert PEX units within your Network Management System NMS IntelliSlot 485 Card The Liebert IntelliSlot 485 card provides BMS management of Liebert PEX units over EIA 485 via Modbus RTU or Liebert s proprietary protocol for SiteLink c
102. s 70 for compressor models of the unit sensible cooling capacity shall be supported during dehumidification without the need for larger capacity or additional heating stages Dehumidification shall be deactivated when the return air temperature drops below a predefined value Dehumidification EC Fan Air Water Cooled Dual Cool and Free Cool Units A specific dehumidification cycle shall operate by reducing airflow to lower the surface temperature of the evaporator cooling coil below the return air dewpoint condition Air Cooled Systems The indoor evaporator unit shall include refrigerant piping with a factory holding charge of Nitrogen Each refrigeration circuit shall include rigidly mounted isolation valves in the discharge and liquid lines to aid servicing and installation Field relief of the schrader valve shall indicate a leak free system A 3 pole circuit breaker shall be factory fitted per refrigeration circuit for field connection of power to each remote air cooled condenser Remote Air Cooled Condenser The model LSF factory matched air cooled condensers shall be the low profile weatherproof type incorporating high efficiency direct drive external rotor motors with axial blade fans The condenser shall balance the heat rejection of the compressor at C ambient The condenser shall be constructed from heavy duty aluminium and corrosion resistant components Heavy duty mounting legs and all assembly hardware shall be included
103. s amp Service Access PEX Large Frame Downflow Unit EC Backward Curve Fans FOR RAISED FLOOR APPLICATIONS A Air Cooled D Dual Cool Chilled Water amp Air Cooled e W Water Cooled H Dual Cool Chilled Water amp Water Cooled e G Glycol Cooled e F Free Cool Model Model eld w e gd vi ou 0 Liebert Technical Data Manual 5 5 Installation Guidelines Liebert PEX Large Frame Unit Dimensions amp Service Access 1970 PEX Large Frame Upflow Unit FC Forward EC Backward Curve Fans FOR PLENUM APPLICATIONS Plenum shown is optional Model VAa AVA YA s VA a 1020 1025 1030 1035 2035 2045 2055 2040 2050 2060 2070 3070 3080 3090 3100 Dimensions in mm Technical Data Manual A Air Cooled W Water Cooled G Glycol Cooled D Dual Cool Chilled Water amp Air Cooled H Dual Cool Chilled Water amp Water Cooled F Free Cool W Liebert Liebert PEX Large Frame Unit Dimensions amp Service Access Installation Guidelines Model VA ATA VA s VA 1020 1025 1030 1035 2035 2045 2055 2040 2050 2060 2070 3070 3080 3090 3100 W Liebert PEX Large Frame Upflow Unit Forward Curve Fans FOR DUCTED APPLICATIONS Tw lp a 053 s73 1970 os ea 1970 es ea 1970 es ea 1970 2553 e73 1970 2553 873 1970 2553 973 1970 2553 973 1970 A Air Cooled W Water Cooled G Glycol Cooled D Dual Cool Chilled Water amp Air Cooled H Dual Cool
104. shown Compliant Scroll Compressor PEX unt fi Cl a tm PEX unit ar Z E i a r fu I T 5 E i 3 ni p il 1 Condenser Located Above PEX Unit Condenser Located Below PEX Unit W Liebert Technical Data Manual 5 I Installation Guidelines Liebert PEX Large Frame Digital Scroll System Condenser Located Above PEX Unit for Digital Scroll Compressor eS l a 0 0 discharge PEX unit 20m max Condenser Located on PEX Unit Level for Digital Scroll Compressor PEX unit Level 5 2 Technical Data Manual lO Lieber t Liebert PEX Large Frame Installation Guidelines Discharge line Discharge lines should be insulated where they are routed in the conditioned space including under a raised floor Traps must be fitted in vertical risers every 7 5 metres and at the base of a riser Slope discharge lines in the direction of refrigerant flow Liquid line Liquid lines should not be exposed to any heat sources and should be insulated Air cooled condenser location Condensers should be located for maximum security and maintenance accessibility Vertical or horizontal discharge condensers may be used The surrounding area should be clean and away from trees loose dirt and building exhausts Please refer to the air cooled condenser technical data manual for more information including dimensions weights and connection sizes Water Cooled Systems The PEX water or glycol
105. t only as required so that energy consumption is minimised whilst providing close temperature and humidity control Room loads as low as 35 of unit cooling capacity can be supported with standard reheat e Smaller heater size and unit full load amps FLA lowers electrical connection requirements and reduces installation costs DX Systems Dehumidification Cycle EC Fans e Compressorised models with backward curve EC fans employ reduced airflow in conjunction with compressor operation for dehumidification to further minimise energy consumption whilst providing close temperature and humidity control DX Systems EC Fans and Digital Scroll Compressors Digital Scroll Capacity Modulation How it works e Takes Advantage Of Copeland Scroll Axial Compliance e When Scrolls Are Separated Axially 1 0 mm No Gas Flow e When Scrolls Are In Contact 100 Gas Flow e 20 100 Continuous Capacity im Scroll Separated No Pump Scrolls in contact Pumping Digital Scroll How it works e Digital compressor alternates two different working states the loaded state and the unloaded one Solenoid Solenoid Energized De energized High Discharge Gas removed Moves orbiting Scroll down Moves orbiting Scroll up 0mm Unload State Load State w Liebert Tec Bata Manual 5 Design Liebert PEX Large Frame e A solenoid valve the controller approaches and moves away the rotating scroll and the fixed one using the axial compl
106. thout notice 2 10 TechnicolDot Momol ma tiebert Liebert PEX Large Frame Technical Data Upflow DX Scroll compressors EC fans Free Cool Model Size PEX 1020 1025 1030 2035 2045 2055 2040 2050 2060 3070 Rated Capacity 24 C DB 50 RH 54 Condensing CW Based on 7 C EWT 12 C LWT and Glycol 30 DX Total kW 19 2 21 6 27 1 34 3 42 7 48 8 38 1 43 3 54 9 69 0 Sensible kW 19 0 21 4 25 8 34 0 42 4 48 5 37 8 43 0 53 2 68 5 Free Cool Total kW 23 5 25 7 27 0 44 5 54 6 58 2 47 8 54 0 60 5 84 8 Sensible kW 21 0 23 2 24 9 36 8 46 9 51 4 39 9 46 4 53 6 74 7 Rated Capacity 24 C DB 45 RH 54 C Condensing CW Based on 7 C EWT 12 C LWT and Glycol 30 DX Total kW 19 1 21 5 27 0 34 1 42 5 48 6 38 0 43 2 52 1 68 7 Sensible kW 19 1 21 5 26 8 34 0 42 4 48 4 37 9 43 1 52 0 68 6 Free Cool Total kW 20 8 22 9 24 5 39 3 48 1 51 6 42 1 48 0 53 7 74 4 Sensible kW 20 8 22 9 24 5 36 1 46 3 50 9 39 3 45 8 53 2 73 9 Air Flow m h 6 500 7 500 8 300 10 000 14 000 16 000 11 200 13 800 17 000 23 000 Evaporator Fan Backward Curve EC motor direct drive No of fan assemblies l l 2 2 2 2 2 2 3 Std Motor kW 2 3 2 3 3 1 2 3 2 3 2 3 2 3 2 3 3 1 2 3 Free Cool DX Evaporator amp Chilled Water Coil Copper tubes with rifled bore tubes louvred aluminium fins No of rows 6 6 6 6 6 6 6 6 6 6 Fin series FPM FPI 550 14 Compressor Copeland Compliant Scroll with Crankase Heater No of compressors 2 2 2 2 Unit cooling steps Safety controls kPa Humid
107. ual reset 2800 Humidification Control Infrared kg h 4 5 4 5 4 5 10 10 10 10 10 10 10 10 10 10 10 Opt Electrode kg h 5 5 5 10 10 10 10 10 10 10 10 10 10 10 Dehumidification control Reduced air flow Reheat Single stage electric heater elements I stage kW 6 6 6 9 9 9 9 9 9 9 12 12 12 12 Opt 2 stage kW 12 12 12 18 18 18 18 18 18 18 24 24 24 24 Filter Metal Frame Deep V dry media disposable G4 type filter Nominal W x D x H mm 800 x 800 x 100 Qty 2 2 2 2 2 2 2 3 3 3 3 Full Load Current 400 Volts 3 phase N E 50 Hz Supply Std DX unit only RFLA 22 7 24 8 31 3 40 0 45 8 53 4 39 4 43 6 56 6 60 4 61 4 67 2 76 9 86 9 Water Cooled Condenser 316SS Brazed Plate Heat Exchanger 3 Way MBV Opt 2 Way MBV No of Condensers 2 2 2 2 2 2 2 2 No of MBV 2 2 2 2 2 2 2 2 Valve Size DN25 DN25 DN25 DN25 DN25 DN32 DN25 DN25 DN25 DN25 DN25 DN25 DN25 DN32 Flow I s I I 1 2 1 5 1 9 2 4 2 8 2 2 2 5 3 I 3 6 3 8 4 4 4 6 5 4 PD kPa 49 65 75 67 85 75 51 65 76 59 66 84 78 72 Unit Connections Hot Gas O D 22 22 22 22 22 22 22 22 22 22 22 22 22 22 Qty 2 2 2 2 2 2 2 2 Liquid O D 16 16 16 16 16 16 16 16 16 16 16 16 16 16 Qty 2 2 2 2 2 2 2 2 Condenser Water Supply D 35 35 35 35 35 35 35 35 35 35 42 42 42 42 Qty 2 2 2 2 2 2 2 2 Condenser Water Return O D 35 35 35 35 35 35 35 35 35 35 42 42 42 42 Qty 2 2 2 2 2 2 2 2 CW Supply ILD 25 25 25 35 35 35 35 35 35 35 42
108. ugal type double width double inlet fan s Each fan shall be separately driven by an EFF2 efficiency electric motor rated at kW at RPM with an IP55 enclosure rating The drive arrangement shall be auto tensioning and provide for belt replacement without the use of tools The fan shall be statically and dynamically balanced EC Fans Dual Cool Direct Expansion amp Chilled Water The fan section shall be designed for m h at an external static pressure of Pa The unit shall be fitted with one two three direct driven high efficiency single inlet backward curved centrifugal plug type fan s with aluminium nozzle s and impeller s The fan motors shall be Electronically Commutated EC IP54 with internal protection and speed regulation via controller signal They shall be statically and dynamically balanced Direct Expansion DX FC fans The fan section shall be designed for m h at an external static pressure of Pa The unit shall be fitted with one two three belt driven forward curve FC centrifugal type double width double inlet fan s Each fan shall be separately driven by an EEF2 efficiency electric motor rated at kWat RPM with an IP 55 enclosure rating The Drive arrangement shall be auto self tensioning and provide for belt replacement without the use of tools They shall be statically and dynamically balanced w liebert Tenia Dato Manual 4 1 Guide Specifications Liebert PEX Large Frame HUMIDIFIER
109. upled to high efficiency motors are standard on all models Innovative belt drive system automatically provides high belt tension during startup eliminating slippage and greatly extending belt life e Fan belts changed in seconds without tools e High external static pressure ESP motor options available EC Direct Drive Fan All models are available with direct drive fans offering e High efficiency external rotor electronically commutated EC motor with integrated electronics e True soft start characteristics inrush current lower than operating current e Backward curve corrosion resistant aluminium fan wheel e Maintenance free design and construction e High external static pressure ESP motor options available All downflow units with EC fans feature an in floor fan configuration to deliver the ultimate in energy efficiency Fans are pre wired and easily lowered into the floor after unit positioning on site No extra assembly of components sections fans or wiring etc required Winch Mechanism Up position m eee EO a A Br Se BT te OD SOM GUTEN Ka at he ee Lowered operation postion EG Fan in Operation w Liebert OOO etic ata Manual 1 11 Design Features and Benefits H umidifier options Liebert PEX Large Frame Infrared humidification is standard on all Large Frame PEX models Steam electrode cylinder humidification is av ailable as an option Infrared Humidifier Instant
110. y rotation of operating and standby units Timers Sleep Mode Menu shall allow various customer settings for turning on off unit Alarm Setup Menu shall allow customer settings for alarm notification audible local remote The following alarms shall be available e High Temperature Low Temperature High Humidity Low Humidity Compressor Overload Optional Main Fan Overload Optional Humidifier Problem High Head Pressure Change Filter Fan Failure Low Suction Pressure e Unit Off Audible Alarm The audible alarm shall annunciate any alarm that is enabled by the operator Common Alarm A 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 4 6 Technical Data Manual 0 Li ebert Liebert PEX Large Frame Guide Specifications Maintenance Wellness Settings Menu shall allow reporting of potential 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

Liebert PEX Technical Data Manual

Contents

Download Pdf Manuals

Related Search

Related Contents