Liebert XDP160RC Checklist for Liebert XDP Startup, Indicator Lights Description Green Red

Start the Liebert XDP with Liebert iCOM

5.0START THE LIEBERT XDP WITH LIEBERT ICOM

5.1Checklist for Liebert XDP Startup

! CAUTION

Risk of piping and component rupture. May cause equipment damage or injury.

Closing service valves may isolate liquid refrigerant, causing high pressure and rupture of piping. Do not close valves without following recommended procedures for repair, maintenance and replacement of components. Install pressure relief valves in field piping that may become isolated by service valves.

NOTE

The Liebert XDP160 requires a minimum load of 48kW (163,800BTU/H) before the system can be commissioned. This load can be supplied by actual user load in racks, by independent load banks or by the “Load Bank Testing” service of Emerson Network Power Liebert Services. To achieve the minimum load requirements, the capacity of all connected modules must total at least 48kW (163,800BTU/H). See Table 1.

NOTE

Before any action that could cause a disturbance in the Liebert XD system’s cooling function is begun, the facility manager MUST be informed. In addition, after the action is taken and the work is finished, the facility manager MUST be informed

1.Verify that bypass flow controllers were installed (if applicable), see Table 5.

2.Verify that the minimum load level of 48kW (163,800BTU/H) is present.

3.Check all isolation ball valves in the Liebert XDP and Liebert XD cooling module and verify that all are open.

4.Check rotation of the Liebert XDP’s pumps.

On 460V units only—Hold the rotation device provided against the pump housing at the inspection screw prior to energizing the pumps. Counterclockwise indicates proper rotation; clockwise indicates incorrect rotation.

On 208V and 400V units only, view the LED indicator on the pump. Green indicates proper rotation; Green and Red indicate incorrect rotation.

Table 13 Liebert XDP pump light indicator—208V and 400V units

Indicator Lights		Description
Green	Red
Off	Off	The electricity supply has been switched Off or the pump has
		been cut out by the thermal switch.
On	Off	The electricity supply has been switched On. Normal operation.
On	On	The electricity supply has been switched On. The direction of
		rotation is wrong.

5.Check rotation of fans on Liebert XD cooling module units.

6.Verify that air is being discharged into the cold aisle.

7.Confirm that the total calculated refrigerant R-134a amount has been properly charged into the system (see 3.6 - Filling the Pumped Circuit—R-134a).

8.Confirm that the remote temperature/humidity sensors provided have been installed in optimal locations (see 2.4 - Remote Sensor Installation—Proper Placement)

The Liebert XDP system is now ready to be turned ON.

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