Operating or repairing an HSA compressor without the factory service manual voids warranties and leads to rapid failure.
Connect a hose to the oil drain valve at the lowest point of the compressor or oil separator.
Extract the old filter element and inspect it for metallic debris (copper or steel shavings indicate bearing or rotor wear). Clean the filter housing with a lint-free cloth. mcquay hsa screw compressor service manual
Without it, you risk:
Do not vent refrigerant to the atmosphere. Connect a certified recovery unit to the high and low-side service valves. Evacuate the refrigerant from the compressor housing down to 0 psig (or local regulatory vacuum requirements). Operating or repairing an HSA compressor without the
The internal motor thermistors change resistance based on temperature (Positive Temperature Coefficient - PTC).
According to the , understanding operating limitations is crucial for preventing failure. 2.1. Critical Operating Parameters Clean the filter housing with a lint-free cloth
Evacuate the air from the filter housing before opening the isolation valves. 5. Capacity Control and Slide Valve Calibration
Attach a recovery machine to the schrader valves on the compressor housing. Recover the refrigerant down to 0 psig (or local regulatory vacuum requirements). Step 2: Oil Draining and Filter Replacement
Inspect the compressor for unusual vibrations, rattling, or abnormal acoustic signatures.