Emerson XDF 사용자 설명서

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.

XDF system not cooling

No Power

Confirm unit is plugged in and the building breaker has not 

tripped.

Clogged condenser coil

Clean coil. See 11.1 - Periodic Maintenance.

Hot Gas bypass valve set 

incorrectly

Contact Liebert Technical Support at 800-543-2378.

Refrigerant loss

Verify leak. If refrigerant system needs repaired, contact 

Liebert Technical Support at 800-543-2378.

Fans blowing warm air

Airflow is blocked at the intake 

or exhaust.

Remove airflow obstructions from the front and rear of the 

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

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

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

let compressor cool. Plug in XDF and verify compressor is 

energized.

Compressor trips on thermal 

overload

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

verify compressor is energized.

Faulty Compressor

Contact Liebert Technical Support at 800-543-2378.

Water leaking from inside 

the cabinet

Cabinet not level or internal 

drain line clogged

Ensure that the enclosure rests on a level surface. The 

cabinet must be level to ensure proper operation. Verify 

condensate drain is attached to drain and the drain line has 

the proper pitch (see 4.5.4 - Condensate Drain 

Connection).

Excessive vibration or 

noise

Defective motor in blower or 

shipping damage

 Contact Liebert Technical Support at 800-543-2378.

Cabinet is excessively hot

Electronic equipment not 

positioned for optimum cabinet 

airflow

Rearrange the equipment as illustrated in 4.7 - Equipment 

Layout.

Compressor is overloaded

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

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

rating.

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.

Cabinet not sealed

Check cable entry points, and verify doors and side panels 

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

replace damaged gaskets.

Audible alarm and cabinet 

is excessively hot

iCOM control module has 

detected an abnormal condition

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

is excessively hot causes” to determine course of action.