Liebert Deluxe System/3 - DX

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Air Cooled Models3.5.4 Charging1. Make sure unit is OFF and that jumper is removed on Fan Safety Switch.2. Connect a set of manifold gauges to the refrigerant drum and to the receiver at the rotalock valve.Purge the hoses.3. Open the rotalock valve and fill the receiver with liquid refrigerant per Table 26.4. Close the valve and disconnect gauges.5. Start the compressor and recheck the refrigerant level. If the level has dropped, recharge withvapor through the suction port.6. Replace all fuses (or close circuit breakers) except reheat and humidifier.7. Connect refrigerant charging hose to suction port of compressors and purge with Freon.8. To energize the solenoid valves, use manual override jumpers (on SM) or test outputs (on AM andAG).9. Charge with vapor until the refrigerant level is in accordance with 3.5.5 - Refrigerant Level.3.5.5 Refrigerant LevelOn each receiver at the condenser are two refrigerant-level sight glasses. Refrigerant level will varywith outside temperature.Check refrigerant level after the unit has been on for at least 15 minutes.40°F (4.5°C) and belowBottom sight glass is 3/4 full40°F to 60°C (4.5°C to 15.5°C)Bottom sight glass is full60°F (15.5°C) and aboveTop sight glass is 3/4 fullFigure 22 Lee-Temp control condenserEntering Hot Gas Line (typ)Returning Liquid Gas Line (typ)Lee-Temp Receiver TankSL-10061-6NOTEThe following materials are supplied by Liebert for each circuit (shipped loose with condenser)for field installation: insulated Lee-Temp storage tank, head pressure control valve, checkvalve, rotalock valve, two sight glasses and a pressure relief valve. All other piping to besupplied and installed by others.34
Air Cooled ModelsFigure 23 Lee-Temp control typical general arrangement diagramCondenser CoilInverted traps* on discharge andreturn lines to extend abovebase of coil by a minimumof 7-1/2" (190mm)Piping Assembly**Rotalock Valve**Head PressureControl WithIntegral CheckValveCheckValveLee-TempReceiverSight Glass1/4" (6.4mm)PressureRelief Valve**Traps* every25’ (7.6m) of rise onhot gas line onlyLiquid Returnfrom CondenserEvaporator CoilShutoff*ValveSightGlassSolenoidValvesExpansion ValveSensing BulbLiquidReturnHot GasBypass(optional)Filter DryerMufflerCylinderUnloaders(optional)External EqualizersServiceValvesHot GasDischargeMuffler***CompressorSingle circuit shownFactory PipingOptional PipingField Piping* Components are not supplied byLiebert but are recommended forproper circuit operation and maintenance** Components suppliedby Liebert and must befield-installed*** Components suppliedby Liebert and must befield-installed (DH/VH andDE/VE 245A, 290A and380A models only)DPN00680 Rev035
Page 1: Precision CoolingFor Business-Criti
Page 5: FIGURESFigure 1 Downflow (DH and DE
Page 8 and 9: Table iiUnit weightsAir Cooled Mode
Page 10 and 11: 1.1.3 GLYCOOL (Chilled Glycol Cool
Page 12 and 13: Installation2.3 Unit DimensionsFigu
Page 14 and 15: InstallationFigure 2Upflow 6, 8 and
Page 16 and 17: InstallationFigure 4 Upflow 15, 20
Page 18 and 19: InstallationFigure 6Projection ofdi
Page 20 and 21: 2.4 PipingInstallationAll fluid and
Page 22 and 23: InstallationFigure 9Electrical fiel
Page 24 and 25: Installation2.6.3 Ducted Applicatio
Page 26 and 27: InstallationFigure 12 Plenum dimens
Page 28 and 29: 3.3 Refrigerant PipingAir Cooled Mo
Page 30 and 31: Air Cooled ModelsFigure 14 Piping:
Page 32 and 33: Air Cooled ModelsFigure 16 Upflow a
Page 34 and 35: Air Cooled ModelsTable 13ModelCSF/C
Page 36 and 37: Air Cooled ModelsFigure 19 Air cool
Page 38 and 39: Air Cooled ModelsFigure 21 Piggybac
Page 40 and 41: Air Cooled ModelsTable 19 Indoor un
Page 44 and 45: Glycol Cooled/GLYCOOL Models4.0 GLY
Page 46 and 47: Glycol Cooled/GLYCOOL ModelsFigure
Page 52 and 53: Figure 29 6- and 8-fan drycooler ca
Page 56 and 57: Water Cooled Models5.0 WATER COOLED
Page 58 and 59: Water Cooled ModelsFigure 33 Downfl
Page 60 and 61: Table 37Factory-provided piping con
Page 62: 54Water Cooled Models

Liebert Deluxe System/3 - DX

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