13-25
CONTROL SYSTEM
Revision Y05-01Service Manual - DNG Series
13.8.3 Outdoor coil Deicing (excluding RH Group)
Mode: Heating, Auto (at heating)
Temp: Selected desired Temp
Fan: Any
Timer: Any
I FEEL:Any
Control function
Protects the Outdoor coil from ice formation by controlling COMP & RV operation.
Deicing procedure:
OCT [
o
c]
ON
OFF
ON
OFF
ON
L
ANY
COMP
OFAN
RV
IFAN
DST
(DDT)
0
12
OFF
HEs are forced ON
DOC
ANY
ON
HE
36s 36s
DT
30s
max 12 min.
Note 3
DI (note 1)
DI (note 2)
30s
3 min 3 min
IFAN
OFF
ANY
HE
OFF
ANY
all SH units
except WAX
RC or WAX units
HEs are forced OFF
IFAN is forced to Low Speed
BLINK
ON
OPER
LED
To Next Page
Loading...
