American Standard CH530 - Manual (Page 16)

CDHF-SVU01C-EN 16
General
Information
Figure 11. CDHE, CDHF and CDHG sequence of operation: normal shutdown to stopped and run inhibit
Figure 10. CDHE/F/G sequence of operation: staging second compressor off
Staging Second Compressor Off:
This diagram shows the sequence of operations where there is no longer a need to run the ‘Second’ compressor, so it
is staged off. The ‘First’ and ‘Second’ compressor will be determined by the type of duplex start selected
Satisfied Setpoint:
This diagram shows the sequence of operations where the setpoint has been satisfied, and the last compressor is
staged off.