Emerson 3000 installation manual Factory Piping Optional Piping Field Piping

Page 40

Air-Cooled Models—Self-Contained Compressor

Liebert Lee-Temp Receiver Refrigerant Level

On each receiver at the condenser are two refrigerant-level sight glasses. Refrigerant level will vary with outside temperature. Check refrigerant level after the unit has been on for at least 15 minutes.

Sight Glass Levels

40°F (4.5°C) and lower—bottom sight glass is 3/4 full 40 to 60°F (4.5 to 15.5°C)—bottom sight glass is full 60°F (15.5°C) and higher—top sight glass is 3/4 full.

Figure 17 General arrangement—Air-cooled models with Liebert Lee-Temp™

Inverted trap * on discharge and liquid lines to extend above base of coil by a minimum

of 7-1/2" (190mm)

Condenser Coil

 

**Piping Assembly

Check

 

Valve

**Rotalock Valve

*For rises over 25ft. (7.6m), trap every 20ft. (6m) or at evenly spaced points (hot gas line only)

Head Pressure

Control with

Integral Check

Valve

Liquid Return from Condenser

Hot Gas

Bypass Valve

Liebert

Lee-Temp

Receiver

Expansion

Valve

1/4" ( 6.4mm)

Pressure Relief Valve * *

Sight Glass

Evaporator

Coil

Solenoid

 

Valves

Sensing Bulb

Shutoff

 

Valve * Sight Glass

 

Liquid Return

 

 

 

 

r

 

 

 

 

 

e

 

 

 

 

 

i

 

 

 

 

 

r

 

 

 

 

 

D

 

 

 

 

 

r

 

 

 

 

 

e

 

 

 

External

il

 

 

 

 

t

 

 

 

 

F

 

 

 

 

Service

Equalizers

 

 

 

 

 

 

 

 

 

 

Valves

 

Hot Gas

 

Scroll

Bypass

 

 

Compressor

 

 

 

 

 

 

Check

Valve

Hot GasDischarge

* Trap at base of risers longer than 5ft. (1.5m)

* Components are not supplied by Liebert but are recommended for proper circuit operation and maintenance.

**Components supplied by Liebert and must be field-installed.

FACTORY PIPING

OPTIONAL PIPING

FIELD PIPING

DPN000674 Rev. 3

Liebert® Challenger 3000™

34

Page 39 Page 41
Image 40
Page 39 Page 41
Contents Liebert Challenger 3000 with Liebert iCOM Page Table of Contents Chilled Water Models Split System ModelsFigures R407C RefrigerantTables Important Safety Instructions Liebert Challenger Important Safety Instructions System Descriptions Split Systems Prop Fan Air-CooledCentrifugal Fan Air-Cooled Water-CooledRoom Preparation Equipment InspectionLocation Considerations Equipment HandlingUnit net weight Handling With SkidRemoval of Skid Model Lb. kgUpflow BU cabinet dimensions Floor Cutout Dimensions Drain Line Piping ConsiderationsPiping connection size Piping connections for air-cooled units Downflow models Chilled Water Unit Connection Sizes-inPiping connections for air-cooled units Upflow models Installation Applicable to all Models Condensate Pump Line 1/2 OD CU used only Installation Applicable to all Models Installation Applicable to all Models Installation Applicable to all Models Installation Applicable to all Models Electrical Connections Facility Fluid and Piping MaintenanceHumidifier Supply Water-Optional Infrared Terminal Block For Customer Connectons Upflow Models with Liebert iCOM Downflow Models with Liebert iCOMPlenum Installation Balancing the Air DistributionUnder-Floor Discharge Systems Ducted ApplicationsChecklist for Completed Installation Line Voltage Condenser LocationLow Voltage Common to all models. See below for key to a dimension Air-cooled condenser statisticsLiebert Lee-Tempheater 43-9/16 51-7/16Refrigerant Piping Equivalent lengths feet for various pipe fittings Recommended line sizes OD copper, inchesCondenser refrigerant per serial tag Variable Fan Speed Control Piping Fan Speed Control SystemsVariable Fan Speed Control Materials Supplied Fan speed suction pressure transducer settings Variable Fan Speed ChargingDPN000349 Rev DPN001726 Liebert Lee-Temp Piping Liebert Lee-Temp Leak Check and Evacuation ProcedureLiebert Lee-Temp Controlled Materials Supplied Liebert Lee-TempCharging Liebert Lee-Temp suction pressure transducer settings407C Factory Piping Optional Piping Field Piping DPN001725 Condenser Factory Piping Field Piping Factory Piping Adjustment Water Regulating ValveRefrigerant control settings psi kPa Motorized Ball Valve-Digital Scroll CompressorsManual Flushing ControlControl Method StartupLocation Manual ControlDrycooler Location Drycooler InstallationPump and Drycooler Glycol Piping General GuidelinesRoom dew point temperatures Dry Bulb Wet Bulb Relative Dew Point HumidityVolume in standard Type L copper piping Filling InstructionsExpansion Tanks, Fluid Relief Valves and Other Devices Preparing the System for FillingGlycol Solutions Ethylene glycol concentrationsFilling the System For expansion tank dimensions, see on 43-3/16 43-9/16 110 5mmSee Note 30-1/4 483mm 1097mmMounting hole dimensional data Drycooler dataGlycol pump data Pump Pump Suction Pump Discharge Connection,Field Piping General arrangement-Glycol-cooled models with digital scroll Expansion Tank Field-Installed at Pressure Glycol Regulating Valve Testing Valve FunctionMotor Ball Valve-Digital Scroll Compressors Chilled Water Models WAY Valve Air-Cooled Condensing Units Water/Glycol-Cooled Condensing UnitsRefrigerant Loop R407C Charge Unit refrigerant chargeModel Lb kg Recommended refrigerant lines R407C sizes OD copper Line charges refrigerant per 100 ft m of Type L copper tubeLine coupling sizes Quick Connect Fittings Unit Dimensions See Table Outdoor Air-Cooled Condensing UnitsPFCZ42A-L PFCZ41A-L Outdoor air-cooled condensing unit-top air discharge models See Table36-1/4 38-1/2 Piping and electrical connections top air discharge152 Field-supplied unit disconnect switch Ton High Ambient Ton Quiet-LineInstalling the Indoor Condensing Unit Model Net Weight 60 Hz 50 Hz Lb kg MC40A MC39ACentrifugal Air-Cooled Condensing Units Indoor centrifugal condensing unitDucting Airflow CFM CMHPiping Connections Wire connections from evaporator DPN000207Rev0 ModTon centrifugal air-cooled condensing unit dimensional data AIR Cooled Water Cooled Water and Glycol-Cooled Condensing Units Piping ConsiderationsTon Connection Sizes Condenser Water RequirementsGlycol Systems Ton water/glycol-cooled condensing unitDPN000209 Ton water/glycol-cooled condensing unit dimensional data WATER/GLYCOL Temperature Gauge Pressure Psig KPa R407C RefrigerantCalculating Subcooling Temperature Pressure Gauge Psig KPaExample Page Ne t Ppor t Is tTwor k Care
Related manuals
Manual 60 pages 24.1 Kb Manual 88 pages 36.41 Kb Manual 32 pages 13.16 Kb Manual 22 pages 3.64 Kb Manual 76 pages 17.32 Kb Manual 184 pages 52.9 Kb
Top Page Image Contents