: Should be replaced periodically or if a significant pressure drop is detected.
Conclusion Following the HSA service manual schedules and combining them with practical, condition-based checks keeps McQuay HSA screw compressors running efficiently and extends service life. For any major internal repairs, use qualified HVAC/R service technicians and OEM replacement parts.
Guidelines for proper clearance (typically around 5ft for maintenance access) and the use of spring vibration isolators to prevent mechanical fatigue.
Service records should include normal refrigerant pressures and temperatures to help identify "errant behavior" early.
The provides critical guidelines for the installation, operation, and maintenance of single-screw compressors commonly used in air-cooled and water-cooled chillers. Core Maintenance Tasks