Airwell ONG3-17 R410A, Service Manual

Page: 62 / 127

CONTROL SYSTEM
Service Manual-CN Fixed RPM series
12-27
C. Deicing procedure
OCT [
o
c]
ON
OFF
ON
OFF
ON
L
ANY
COMP
OFAN
RV
IFAN
DST
(DDT)
0
WSHP 15
Others 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
al
l S
H
unit
s
excep
t WAX
RC or
WAX u
n
it
s
HEs are forced OFF
IFAN is forced to Low Speed
BLINK
ON
OPER
LED
Notes :
1. In the following Deicing cycles, the time interval between two Deicing
cycles activation is between 30 to 80 min.
2. For RC group, HEs are forced OFF. IFAN operation is as in Heat Mode,
Sect 4.0.3.a, i.e. IFAN will be set to OFF when ICT<30
o
c.