Application Note:
APPLYING INVERTERS TO CENTRIFUGAL COMPRESSORS IN HVAC CHILLERS
Please refer also to the
Inverter Instruction Manual
AN060404-1
Hitachi America, Ltd.
©
2004 Hitachi America, Ltd.
Page 1: ...Application Note APPLYING INVERTERS TO CENTRIFUGAL COMPRESSORS IN HVAC CHILLERS Please refer also to the Inverter Instruction Manual AN060404 1 Hitachi America Ltd 2004 Hitachi America Ltd ...
Page 2: ...to bypass the control logic of the existing chiller and use temperature or pressure feedback and PID to optimize speed control while not compromising the safeties of the built in logic system Speed control should take precedence over compressor vane control Compressor vanes should be fixed fully open until speed control is no longer effective at low loads A minimum speed should be configured for t...
