Compressor
Open, fan cooled, high efficiency type electric motor
Compressor
High speed impeller wheel, driven by electric motor
Compressor
Pumps vapor from evaporator she'll, discharges at high pressure to condenser
Microprocessor
Unit controlled/ monitored by electric control system
PRV
Modify compressor performance throughout range of positions
VGD
Optimum operation at various load conditions, microprocessor controlled
CWCV
Adjust seawater flow, three way electric actuated,
HGBV
Increases gas flow to compressor at light load conditions, keeps evaporator pressure and saturation temp up
Rupture disk
Protects from seawater entry
Thermistors
Sense temperature, create electrical resistance
Oil sump
16 gallon capacity
Oil heater
Control oil temp while plant is shut down
Oil pump
Runs with compressor, draws oil from bottom of sump
OPRV
Regulates oil pressure, relieves excess oil pressure back to the sump
Oil cooler
Removes heat from lubrication system, prevents overheating
Oil temp control valve
Maintains oil temp at 120F while plant is operating
Dual oil filter
Permits uninterrupted inspection/replacement
Oil accumulator
Compresses until gas pressure equals system pressure
Evaporator oil educator
Removes liquid refrigerant and oil mixture from evap
Gravity feed oil reservoir
Distributes oil during coastdown for 2 min
AOP
Maintains oil pressure
Jet oil pump
Draws oil from compressor oil sump
Low speed oil pump
Pump rotates with low speed shaft, received oil from discharge of jet oil pump, discharges to suction of high speed oil pump
High speed oil pump
Rotates with high speed shaft, reverse thrust bearing
TPE
Refrigerant charge to and from remote receiver, evacuates main system, receiver, oil drain tank, purge condenser arrangement
AOP
Runs for prelube, after startup lube and postlube
PPO
For purging non condensable gases from main ac plant
Coastdown
Compressor motor shaft deceleration time
Compressor surge
Adverse operational condition of centrifuge compressors in which the machine rapidly alternates between shutoff and flow rate