Liebert XDC 5.0 MICROPROCESSOR CONTROL

Microprocessor Control

36

5.0 MICROPROCESSOR CONTROL

5.1 Feature Overview

The microprocessor control for the Liebert XDC unit features an easy-to-use menu-driven LCD. The

menus, control features and circuit board details are described in this section.

Figure 32 User interface

Active alarms are displayed on the LCD screen and sound an audible beep. To silence an alarm, press

the Alarm Silence/Help key as prompted on the display.

Setpoints, DIP switch settings and other selections were made during factory testing of the unit based

on typical operating conditions. (Other default selections were made according to options included

with the unit.)

ADJUST THE FACTORY DEFAULTS ONLY IF THEY DO NOT MEET YOUR SPECIFICATIONS.

Allowable ranges are displayed by pressing the Help key. A password will be required (if enabled) to

change setpoints, time delays, etc.

The display normally shown includes the present room temperature, humidity, active status func-

tions and active alarms. More detailed status and alarm information is available from the menu.

5.1.1 Display

To turn the unit On, press the On/Off (I/O) key after power is applied to the Liebert XDC.

To turn the unit Off, press the On/Off (I/O) key before power is disconnected.

Table 20 User interface keypad functions

Keypad Function

On/Off (I/O) Turns the unit On or Off (top far left keypad)

Menu Enables the user to access the program menu to change setpoints, alarms, etc. (top near left)

Up Arrow Key Raises the value of displayed parameter while in a set mode (set points, time, etc).(arrow, top

near right)

Escape (Esc) Allows user to move back to a previous menu (top far right)

Alarm Silence If an alarm is present, press this key to silence the alarm. Help text will appear if this key is

pressed when no alarm is present (bottom left)

Down Arrow

Key

Lowers the value of displayed parameter while in a set mode (set points, time, etc).(arrow,

bottom near right).

Enter After setting a control value, press ENTER to store the information in the microprocessor

(bottom right).

On/Off Key

Alarm Silence Key

Up Arrow Key

Down Arrow Key

Status Display

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