12-19
CONTROL SYSTEM
SM HAFRPM 1-A.3 GB
12.9.2
High Pressure Protection
Mode: (Auto) Cooling or Dry
Temp: Selected desired temp.
Fan:
Any
Timer:
Any
I Feel: On or Off
Control
Function
To protect the COMP from the high pressure built-up in the outdoor coil during normal
cooling operation, by switching OFF the IFAN and COMP.
OCT [
o
c]
Any
OFF
Any
ON
Any
Blink
ON
COMP
OFAN
IFAN
OPER
LED
52
55
61
66
L
COMP is forced OFF
OFAN is forced ON
IFAN forced
to LOW
68
OFAN follow operation of
COMP
COMP is forced OFF
OFAN is forced ON
For all models except WAX & P2000
For WAX & P2000 models
Note:
The ICT is also monitored during Cool and Dry mode, in case the RV control circuit
is faulty. Whenever ICT reaches 70
o
c, which indicates a high pressure in the indoor
coil, the COMP will be forced off automatically. The COMP can be turned on again only
after the ICT is under 70
o
c again and after the 3 min COMP ON delay time. The OPER
LED will not blink in this case.
CONTENTS
