Liebert XDC 1.6 Extra Low Voltage Connections

Product Description

13

Figure 15 50Hz models high voltage connections—secondary disconnect switch

1.6 Extra Low Voltage Connections

Extra Low Voltage (ELV) power output is 30V and 100VA or less.

1. Turn off all unit power before connecting cables or wires. Failure to do so may damage this

equipment.

2. Route low voltage electrical connections through the appropriate knockouts as shown in

Figure 17.

3. User interface and temperature/humidity sensor wire is NEC Class 2. All electrical installation

must comply with all national, state and local requirements.

Figure 16 Liebert XDC heat rejection connection points

Busbar

Power Connection

From Primary

Power Block

Pump Circuit

Breakers

Pump Contactors

Ground Lug

Secondary

Disconnect

Switch

Transformer 1

Power Block

Transformer 2

Fuse Blocks

Electrical handy box,

factory-installed with cover

HEAT REJECTION CONNECTION

Field-supplied 24V. Class 1 wiring

to interlock heat rejection from pigtails:

70A and 71A - Compressor 1 circuit

70B and 71B - Compressor 2 circuit

70C and 71C - Dual Source relay (optional)

Contents

Main GENERAL SAFETY GUIDELINES A XD C 160 1 Example: XDC160AA 1 A TABLE OF CONTENTS 2.0 PIPING AND FILLING WITH REFRIGERANT: R-134A AND R-407C CIRCUITS . . . . . . . . . . . . .16 Page FIGURES TABL ES 1.0 PRODUCT DESCRIPTION 1.1 General Product Information Compressor 1.1.1 Product/System Description 1.2 Equipment Inspection 1.3.1 Handling With Skid 1.3.2 Removal of Skid Page 1.3.3 Removing Piano Jacks 1.4 Mechanical Considerations Unit Dimensional Data 1.4.1 Positioning the Liebert XDC Floor Cutout Dimensions DPN000768 Page 2, Rev. 6 Figure 6 Piping locations Table 2 Liebert XDC piping connection sizes 1.4.2 Placing the Liebert XDC on a Floor Stand Figure 7 Water/glycol Liebert XDC on a floor standpositioning and piping connections Table 3 Liebert XDC water/glycol piping connection Sizes Welded Tab A DETAIL A Page 1.4.3 Positioning the Liebert XDC with Floor Stand 1.5 High Voltage Connections 1.5.1 Connecting High-Voltage Cables Page Page 1.6 Extra Low Voltage Connections Electrical handy box, factory-installed with cover Page Figure 18 Extra Low Voltage field connections points 2.0 PIPING AND FILLING WITH REFRIGERANT: R-134A AND R-407C CIRCUITS 2.1 European Union Fluorinated Greenhouse Gas Requirements 2.2 Recommended Pipe Size 2.3 Liebert XDC Interconnection With Liebert XD Cooling Module 2.4 Piping Installation Method 2.4.1 Piping InstallationR-134a Pumped Circuit Piping Mains Bypass Flow Controllers Evacuation and Leak CheckR-134a Pumped Circuit Insulation 2.5 Filling the Pumped CircuitR-134a 2.5.1 Calculating Refrigerant ChargeExample 2.5.2 Piping for Direct Expansion (DX) CircuitR-407c Air Cooled Units 2.6 Install Double Discharge Risers Page Piping and Filling with Refrigerant: R-134a and R-407c Circuits 24 Figure 24 Installation dataLee-Temp, one-circuit, four-fan model For CSL616 condenser piping connections, see Figures28 and 29. Piping and Filling with Refrigerant: R-134a and R-407c Circuits 25 Figure 25 Installation dataLee-Temp, one-circuit, high ambient six-fan model See Figure29 for details on piping connections. Figure 26 Liebert XDC piping schematic and Lee-Temp heater pad wiring Piping Schematic Lee-Temp Heater Pad Wiring Page Page Figure 29 CSL616 piping connectionstwo refrigerant circuits connected for parallel refrigerant flow Lee-Temp Piping Lee-Temp Control Materials Supplied Evacuation and Leak CheckR-407c (DX) Circuit (Air and Water/Glycol Systems) 2.7 Filling the Direct Expansion (DX) CircuitR-407c 3.0 INSTALLATION CHECKLIST 4.0 CHECKLIST FOR LIEBERT XDC STARTUP 4.1 System Refrigerant Charges Over 35 lb. (15.9kg) Require Additional Oil Page 5.0 MICROPROCESSOR CONTROL 5.1 Feature Overview 5.1.1 Display 5.2 Controls 5.2.1 Feature Overview 5.2.2 Status Display 5.3 Main Menu 5.3.1 Viewing or Changing Settings 5.3.2 SETPOINTS MIN TEMP SP HI AIR TEMP LO AIR TEMP 5.3.3 STATUS 5.3.4 ACTIVE ALARMS 5.3.5 ALARM HISTORY 5.3.6 TIME 5.3.7 DATE 5.3.8 SETUP OPERATION RESTART C/F DEGREES PUMP START TD PUMP WAIT TD Page 5.3.9 SETPT PASSWORD 5.3.10 SETUP PASSWORD 5.3.11 CALIBRATE SENSORS 5.3.12 ALARM ENABLE 5.3.13 ALARM TIME DELAY 5.3.14 COM ALARM ENABLE 5.3.15 CUSTOM ALARMS 5.3.16 CUSTOM TEXT 5.3.17 DIAGNOSTICS LLSV1, LLSV2 HGSV1, HGSV2 HGV1, HGV2 6.0 ALARM DESCRIPTIONS AND SOLUTIONS 6.1 Alarm Descriptions 6.2 Red and Green Lamp Indicators 6.3 Enable / Disable Alarms 6.4 Alarm Time Delays 6.5 View Active Alarms 6.6 View Alarm History 6.7 System Shutdown Causes 7.0 T Table 24 Liebert XDC troubleshooting Table 24 Liebert XDC troubleshooting (continued) 8.0 M 8.1 Fluorinated Greenhouse Gas Requirements 8.2 Air Cooled Condenser 8.3 Water/Glycol Floor Stand Condenser 8.3.1 Shell and Tube Condensers 8.3.2 Regulating Valves Testing the Water Regulating Valve Function 8.3.3 Glycol Solution Maintenance 9.0 S Table 25 Liebert XDC specifications Page Page Page Ensuring The High Availability 0f Mission-Critical Data And Applications. Technical Support / Service Locations