Maintenance

11.0MAINTENANCE

Table 9

Troubleshooting

 

 

 

 

 

 

Problem

Cause

Solution

 

 

 

 

 

 

No Power

Confirm unit is plugged in and the building breaker has not

 

 

tripped.

 

 

 

 

 

Clogged condenser coil

Clean coil. See 11.1 - Periodic Maintenance.

XDF system not cooling

 

 

Hot Gas bypass valve set

Contact Liebert Technical Support at 800-543-2378.

 

 

incorrectly

 

 

 

 

 

Refrigerant loss

Verify leak. If refrigerant system needs repaired, contact

 

 

Liebert Technical Support at 800-543-2378.

 

 

 

 

 

 

Remove airflow obstructions from the front and rear of the

 

 

 

enclosure. Ensure the cabinet has at least 36" (915mm)

 

 

Airflow is blocked at the intake

front, rear and overhead clearance. (Water/glycol models

 

 

or exhaust.

do not require overhead clearance.) Open XDF’s doors and

Fans blowing warm air

 

let compressor cool. Plug in XDF and verify compressor is

 

energized.

 

 

 

 

 

Compressor trips on thermal

Open XDF doors and let compressor cool. Plug in XDF and

 

 

overload

verify compressor is energized.

 

 

Faulty Compressor

Contact Liebert Technical Support at 800-543-2378.

 

 

 

 

 

 

 

Ensure that the enclosure rests on a level surface. The

Water leaking from inside

Cabinet not level or internal

cabinet must be level to ensure proper operation. Verify

condensate drain is attached to drain and the drain line has

the cabinet

drain line clogged

the proper pitch (see 4.5.4 - Condensate Drain

 

 

 

 

 

 

Connection).

 

 

 

Excessive vibration or

Defective motor in blower or

Contact Liebert Technical Support at 800-543-2378.

noise

 

shipping damage

 

 

 

 

Electronic equipment not

Rearrange the equipment as illustrated in 4.7 - Equipment

 

 

positioned for optimum cabinet

 

 

Layout.

 

 

airflow

 

 

 

 

 

 

 

 

 

 

Verify the UPS load does not exceed XDF’s capacity. If no

 

 

Compressor is overloaded

UPS, verify equipment load does not exceed the XDF’s

 

 

 

rating.

Cabinet is excessively hot

Heat not rejected from room

Verify that XDF is in room with air circulation and heat

 

 

rejected from unit is sufficiently removed.

 

 

 

 

 

XDF system not cooling

Confirm unit is plugged in and the building breaker has not

 

 

tripped. Check setpoints on iCOM controller.

 

 

 

 

 

 

Check cable entry points, and verify doors and side panels

 

 

Cabinet not sealed

are closed. Reposition wires to prevent air leak, or fix or

 

 

 

replace damaged gaskets.

Audible alarm and cabinet

iCOM control module has

Silence alarm on the iCOM module. See solutions for “XDF

system not cooling,” “Fans blowing warm air” and “Cabinet

is excessively hot

detected an abnormal condition

is excessively hot causes” to determine course of action.

 

 

 

 

 

 

 

11.1Periodic Maintenance

The Liebert XDF requires very little maintenance. The XDF’s condenser coil must be inspected peri- odically to determine the necessary cleaning interval based on conditions at the installation site. Depending on site conditions, the coil may require cleaning as often as twice a month or as seldom as twice per year. If the coil becomes dirty and clogged, it should be vacuumed with a soft bristle brush or cleaned with compressed air.

48

Page 54
Image 54
Emerson XDF user manual Periodic Maintenance, Troubleshooting