What is the compressor currently showing? What refrigerant type is used in your system? Share public link
Technician replaces the starter and contacts motor rewinder. Problem persists.
Use a dial indicator to measure axial endplay. Excessive clearance allows the rotors to shift forward and strike the discharge end plate, causing catastrophic failure.
The service manual for the (often associated with the HSS series or Frame 3200/3100) provides critical installation and maintenance guidelines for McQuay air-cooled screw compressor chillers. Core Service Manual Documents mcquay hsa screw compressor service manual
The McQuay HSA screw compressor service manual is a comprehensive document that covers various aspects of the compressor's operation, maintenance, and repair. The manual typically includes:
To get the most out of the McQuay HSA screw compressor service manual, follow these best practices:
Following any major service or repair, follow these start-up steps to ensure system stability: What is the compressor currently showing
What or fault code are you currently experiencing?
Check electrical supply; verify contactor operation; perform manual rotor rotation check. Damaged main bearings; liquid slugging; rotor misalignment.
To maximize the lifespan of your McQuay HSA screw compressor, ensure the following systems are always functional: Problem persists
Only for major overhaul – requires compressor removal.
Clean the internal housing with a lint-free cloth. Install a new OEM filter cartridge and replace the O-ring seal. Torque the cover bolts to specification. Step 3: Capacity Control System (Slide Valve) Service