: During service, follow the standard pumpdown procedure (e.g., reaching 20 psig suction pressure) to prevent overcharging or undercharging the system. Electrical & Controls :
Record suction, discharge, and motor winding temperatures. High discharge temperatures indicate insufficient cooling or internal friction.
: Must be maintained at least 30 psi above suction pressure during operation.
Clogged oil filter cartridge.Refrigerant diluted within the oil charge.Worn internal oil galleries.
Stuck slide valve; defective solenoid coil; leaking piston seals.
: During service, follow the standard pumpdown procedure (e.g., reaching 20 psig suction pressure) to prevent overcharging or undercharging the system. Electrical & Controls :
Record suction, discharge, and motor winding temperatures. High discharge temperatures indicate insufficient cooling or internal friction. mcquay hsa screw compressor service manual
: Must be maintained at least 30 psi above suction pressure during operation. : During service, follow the standard pumpdown procedure (e
Clogged oil filter cartridge.Refrigerant diluted within the oil charge.Worn internal oil galleries. : During service
Stuck slide valve; defective solenoid coil; leaking piston seals.