Table of Contents
Advertisement
2. Outdoor Coil High Pressure Protection
The out-coil high pressure protection prevent the build up of high pressure at the out-coil during cooling
operation.
o
OCT [
c]
64
61
55
52
ANY
OFF
COMP
ANY
ON
OFAN
ANY
IFAN
L
ON
OPER
BLINK
LED
Note 1:
In some applications, the outdoor fan and the compressor are controlled together by the COMP
relay output from the controller. In this case, it will take more time for the out-coil to cool down
during the high pressure protection, because the outdoor fan will be turned off with the
compressor instead of working as in the graph above.
OFAN follow operation of COMP
IFAN is forced LOW
OFAN is forced ON (Note 1)
25
COMP is forced OFF
Advertisement
Table of Contents
