Liebert XDC user manual See for details on piping connections

Page 31

Piping and Filling with Refrigerant: R-134a and R-407c Circuits

Figure 25 Installation data—Lee-Temp, one-circuit, high ambient six-fan model

 

 

 

 

Field-supplied main disconnect switch in

* Liquid line from

 

 

accordance with local codes or main unit

condenser

 

 

 

switch ordered as optional equipment

(Circuit 1)

 

 

 

factory-installed in condenser control box.

B

 

 

 

 

 

* Hot gas line

 

 

 

 

 

from unit￿

 

 

 

 

 

(Circuit 1)

 

 

 

 

 

5

 

 

 

 

 

Lee-Temp heater

 

 

 

 

 

pad electric

 

C

 

 

 

box this end

 

 

 

 

(See DPN000937,Pg. 3)

 

 

 

 

 

* Hot gas line to condenser (Circuit 1)

 

 

5

Hot gas line

Electrical service

 

 

 

96" (2438mm) receiver

 

 

7

(Circuit 1)

by others

shown; some systems

 

 

Liquid return

See Note 14

Ensure piping stays

use smaller receivers

A

D

line to unit

below electrical box

Liquid line

Position elbow to direct

(Circuit 1)

(Circuit 1) See Note 14

and does not protrude

relief valve downward

Metal

 

Isolator

See Page 5 for piping connection details

Mounting Instructions

Clamp

 

 

Note 14

 

1. Uncrate carton and inspect for damage to

 

 

 

 

condenser and condenser control panel.

 

Materials Supplied by Liebert

2. Assemble legs per instructions as shown.

 

 

1 Built-in condenser control box. See electrical drawin

3. When piping long, vertical rises, oil traps are

 

recommended on hot gas line every 25 ft. (7.6m)

 

for details and field wiring.

(see 2.6 Install Double Discharge Risers).

 

2

Air-cooled condenser.

4. Wire according to electrical diagram on inside

 

3 Piping access cover to be reinstalled when piping is

of condenser control box and in accordance with

4 3/8"-16 x 3/4" long bolts - (20 total) attaches legs to

all local codes.

 

 

5. All condenser locations more than 200 ft. (61m) of

 

condenser frame.

equivalent piping length away from Liebert XDC unit

5 3/8"-16 x 1-1/4" long bolts - (10 total) attaches legs t

must consult factory for special piping considerations.

receiver. 3/8" nuts (10 total). 3/8" washers (20 total)

6. Field to size refrigerant lines so as not to exceed

 

6

Terminal block for 2 wire 24 volt interlock connection

2°F (1.1°C) saturation loss for total equivalent length

(do not use connection sizes to determine line sizes).

 

Liebert XDC unit and Liebert condenser.

7. Condenser installation is limited to a maximum of￿

7

Condenser legs - (5) fivelegs for (6) six-fan models.

15 ft. (4.6m) location below Liebert XDC unit.

 

8

Lee-Temp:

8. Do not run piping or wiring in the path of air flow

 

a. Insulated storage receiver - storage

as this will hamper the system performance.

 

 

 

 

receiver (1) per circuit. Receiver size varies.

9. Install field-supplied inverted traps on hot

 

 

 

 

b. Dual head pressure control valve assembly

gas lines between condenser and field piping.

 

 

 

 

with integral check valve(s) - (1) one per circuit (S

10. All other piping field-supplied and field-connected.

 

 

c. Rotalock valve - (1) one per circuit, field-installed.

11. Inverted traps must be installed to allow proper

 

 

 

 

d. Pressure relief valve - (1) one per circuit, field-inst

clearance to fully open condenser control box door

 

 

e. Liquid level indicator - (1) per circuit

and in accordance with local electric codes.

 

 

factory-installed on receiver.

12. Secure Lee-Temp receiver assembly and each leg to

 

 

condenser frame using hardware provided. Receiver

 

DPN000937

can be mounted on either side of condenser.

 

 

 

 

Pg. 02, Rev. 09

13. Lee-Temp Item B is shipped as a pre-piped

 

 

 

 

 

assembly shipped loose for field installation.

 

 

 

Item C is shipped loose for field installation.

 

 

 

14. Fasten liquid and hot gas lines using flat

 

See Figure 29 for details on piping connections.

surface clamps with isolators (field provided).

 

Support field piping separately to avoid coil damage and loss of charge.

15.Relieve pressure at access port. Replace access port fitting with relief valve before charging system.

25

Image 31
Contents Liebert XDC Voltage-phase-frequency Density system = 380/415-3ph-50Hz General Safety GuidelinesExample XDC160AA Table of Contents Specifications Alarm Descriptions and SolutionsFigures Tables Product Description General Product InformationEquipment Inspection Equipment HandlingRemoval of Skid Handling With SkidRemove tie-down brackets Positioning the Liebert XDC Liebert XDC dimensions, weightMechanical Considerations Removing Piano JacksLiebert XDC piping connection sizes Piping locationsPlacing the Liebert XDC on a Floor Stand Liebert XDC water/glycol piping connection Sizes Detail aTOP View of Floor Stand Positioning the Liebert XDC with Floor Stand Dimensions and clearances for Liebert XDC on floor standHigh Voltage Connections Connecting High-Voltage CablesElectrical enclosure knockout locations for field wiring Contactors Liebert XDC heat rejection connection points Extra Low Voltage ConnectionsField Connections-Optional for All Units Field Connections-All UnitsField Connections-Air Cooled Units only Extra Low Voltage field connections points Supply, return pipe sizes for Liebert XD refrigerant loop European Union Fluorinated Greenhouse Gas RequirementsRecommended Pipe Size Liebert XDC Interconnection With Liebert XD Cooling ModulePiping Installation-R-134a Pumped Circuit Piping Installation MethodPiping Mains Bypass flow controllers for a Liebert XDC-based system Bypass Flow ControllersRequired Number Insulation Evacuation and Leak Check-R-134a Pumped CircuitLiebert XDP Liebert XDC System refrigerant charge for the supply and return mains Filling the Pumped Circuit-R-134aCalculating refrigerant charge-example Calculating Refrigerant Charge-ExampleWorksheet to calculate refrigerant charge Double discharge riser layout Install Double Discharge RisersPage Installation data-Lee-Temp, one-circuit, four-fan model See for details on piping connections Piping Schematic Recommended refrigerant line sizes, DX R-407c, OD copper General arrangement air cooled Liebert XDC Lee-Temp ControlRecommended refrigerant line sizes for DCSL616 For mounting instructions, refer to Figure Lee-Temp Control Materials Supplied Lee-Temp PipingIndoor water/glycol cooled module R-407C refrigerant charge Filling the Direct Expansion DX Circuit-R-407cIndoor unit refrigerant charge-R-407c Outdoor air condenser charge-R-407cInstallation Checklist Liebert XDC pump light indicator Checklist for Liebert XDC StartupIndicator Lights Description Green Red Refrigerant Type Compressor oil typesCompressor Type 407c Liebert XDC system is now ready to be turned on User interface keypad functions Feature OverviewMicroprocessor Control DisplayMain Menu Feature OverviewViewing or Changing Settings ControlsHI AIR Temp Setpoint functions, default values and allowable rangesSetpoints MIN Temp SPTime Active AlarmsAlarm History StatusPump Start TD Setup OperationRestart DegreesDipswch Pump OFF TDLead Pump Lead TandemSetup Password Setpt PasswordCalibrate Sensors Alarm EnableCOM Alarm Enable Alarm Time DelayCustom Alarms Custom Text DiagnosticsAlarm Descriptions and Solutions Alarm DescriptionsRed and Green Lamp Indicators Alarm Time Delays Enable / Disable AlarmsView Active Alarms System Shutdown Causes View Alarm HistoryLiebert XDC troubleshooting TroubleshootingToo warm Fluorinated Greenhouse Gas Requirements MaintenanceAir Cooled Condenser Shell and Tube Condensers Testing the Water Regulating Valve FunctionGlycol Solution Maintenance Water/Glycol Floor Stand CondenserLiebert XDC specifications SpecificationsPerformance Data Performance DataHeat Rejection Equipment Piping Connections204 Page That Ne tIti Ti n