Heatcraft Condensing Unit LDV2500M6C

Preventive Maintenance Guidelines — Air-Cooled Condensing Units — Annually

Submit an oil sample for analysis

Change oil and driers until test results read normal

Investigate source of high metal concentrations

Check for possible sources of issues

Preventive Maintenance Guidelines — Air-Cooled Condensing Units — Quarterly

Visually inspect unit for the following

Pay close attention to the following areas

Check any suspect areas with an electronic leak detector

Repair any leaks found and add refrigerant as needed

Check condition of moisture indicator/sightglass in the sight glass if so equipped

Action based on moisture indicator/sightglass condition

Check moisture indicator/sightglass for flash gas

If flash gas found, check entire system for refrigerant leaks and add refrigerant as needed after repairing any leaks

Preventive Maintenance Guidelines — Air-Cooled Condensing Units — Annually

Inspect suction accumulator (if equipped)

Remove insulation and inspect for leaks and corrosion if applicable

Note any issues with copper to steel brazed connections

Wire brush all corroded areas and peeling paint

Apply an anticorrosion primer and paint as required

Preventive Maintenance Guidelines — Air-Cooled Condensing Units — Semi-Annually

Repeat all quarterly inspection items

Clean Condenser Coil and Blades

Was a non-acid based foam cleaner used?

Follow label directions for foam cleaner use

Check Operation of Condenser Fans

Do all fans rotate freely and quietly?

Ensure all electrical and refrigerant connections are tight

Observe compressor oil level before start-up

Remove upper mounting nuts on the compressor feet and install neoprene washers

Check and adjust controls if necessary

Check and adjust room thermostat for normal operation

Read and file wiring diagrams and instruction bulletins

Check fan motors for proper rotation and alignment

Temporarily wire evaporator fan motors for continuous operation