After the initial 24 hours of operation, the pressure drop across the replaceable core filter drier should be checked. If it exceeds recommended limits or if the moisture indicator shows a "wet" condition, the cores must be replaced. Critical Technical Specifications
While the HSA series requires no yearly scheduled mechanical maintenance, vibration is a key indicator of potential issues. Experts recommend performing a vibration test shortly after start-up to establish a benchmark and repeating it annually to catch impending bearing or motor failures. mcquay hsa screw compressor service manual best
These compressors use a slide valve system (managed by the unit controller) for infinitely modulating capacity . Maintenance should include testing the pulse-action load/unload valves (Valve A and B) to ensure they are sealing and moving correctly. After the initial 24 hours of operation, the
Cylinder pressure = Discharge pressure + spring pressure = slide stays in same position. = + = All Seasons ° CLIMATE COMFORT Name: Air cooled screw chillers Experts recommend performing a vibration test shortly after