Heatcraft Condensing Unit LDV3000M6D

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

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 appropriate use

Check Operation of Condenser Fans

Do all fans rotate freely and quietly?

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

Check any suspect areas with an electronic leak detector

Describe any leaks found and actions taken

Check condition of moisture indicator/sightglass

Moisture indicator/sightglass condition

Replace liquid line drier if slight presence of moisture is indicated

Replace refrigerant, oil, and drier if high moisture concentration is indicated

Check moisture indicator/sightglass for flash gas

Preventive Maintenance Guidelines — Air-Cooled Condensing Units — Annually

Remove insulation and inspect for leaks and corrosion if accumulator is insulated

Inspect all copper to steel brazed connections

Wire brush all corroded areas and peeling paint

Apply an anticorrosion primer and paint as required