Mitsubishi Electric CAHV-R450YA-HPB Service Manual page 110

[ VII Control ]
-9- Anti-short-cycling protection
The unit has a 3-minute restart-delay function to protect
the compressor from short-cycling. This function is effec-
tive even after a power failure.
The unit has a function to keep the compressor from short-cycling when the amount of circulating water is low or when the
load is light. After the compressor cycles off, it will not restart for 10 minutes.
Min. 10 minutes
ON for
7 minutes
Compressor
ON
OFF
HWE22020
15 minutes
ON for
3 minutes
12 minutes
Time
3-minute restart delay function
Min. 3 minutes
Compressor
ON
OFF
Time
10 minutes
ON for
3 minutes
4 minutes 6 minutes
- 101 -
The 3-minite restart-delay function will
be triggered in the following situations:
(1) The setting for the SWS1 (Local,
Off, Remote) was changed, or (2) after
a power failure.
GB