Maintenance

8.0MAINTENANCE

The Liebert XD system components require little maintenance when proper fluid levels are main- tained and proper startup and operation procedures are followed. The following tasks should be per- formed at the intervals stated:

1.Check sight glass level of receiver on all circuits every 4-6 weeks. During normal operation, the level should be at or above the first sight glass.

2.Check system for leaks every 4-6 weeks

8.1Fluorinated Greenhouse Gas Requirements

Stationary air conditioning, refrigeration, heat pump equipments and stationary fire protection sys- tems in the European Community market and operating with fluorinated greenhouse gases (f-gas), such as R407C, R134a, R410A, must comply with the F-Gas Regulation: (EC) No. 842/2006 (F-gas). The regulation prohibits, among other actions, venting fluorinated greenhouse gases to the atmo- sphere.

The F-Gas Regulation requires operators to use use all measures that are technically feasible and do not entail disproportionate cost to prevent leakage of these gases, to test for leakage regularly and to recover f-gas during equipment service and maintenance and before disposing of equipment.

Refer to the full regulation for additional details.

8.2Air Cooled Condenser

Restricted airflow through the condenser coil will reduce the operating efficiency of the unit and can result in high compressor head pressure and loss of cooling.

Clean the condenser coil of all debris that will inhibit air flow. This can be done with compressed air or commercial coil cleaner. Check for bent or damaged coil fins and repair as necessary. In winter, do not permit snow to accumulate around the sides or underneath the condenser.

Check all refrigerant lines and capillaries for vibration isolation. Support as necessary. Visually inspect all refrigerant lines for signs of oil leaks.

Figure 33 Outdoor fan/condenser configuration

Lee-Temp Heater Pad

Connection Boxes

Secure each leg to condenser frame at all points shown using hardware provided

Fan Motor M1

Inverted Traps by Others

Hot Gas Line

Electric Service

Supplied by Others

Liquid Line

Fan Motor FS

Inverted Traps by Others

Hot Gas Line

Electric Service

Supplied by Others

Liquid Line

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Liebert XDC user manual Fluorinated Greenhouse Gas Requirements, Air Cooled Condenser, Maintenance