11-26
CONTROL SYSTEM
Revision Y06-02
Service Manual - KN Series
11.12.
3
He
a
ting Mode Prote
c
tions
a. Outdoor Coil Deicing (excluding RH Group)
Mode: HE
A
TING,
A
UTO (at heating)
Te
m
p: Selected desired te
m
perature
Fan:
A
ny
Ti
m
er:
A
ny
I-FEEL:
A
ny
Control
f
unction
To protect the outdoor coil
f
ro
m
ice
f
or
m
ation by controlling COMP & RV operation.
1) Deicer
A
ctivation
A
lgorith
m
a) Static deicer threshold is -5°C
b) Dyna
m
ic deicer threshold changes o
f
3°C in 3
m
inutes in the OCT
te
m
perature
c) In
f
irst COMP activation (a
f
ter SB or OFF), i
f
OCT < 0°C,
m
in ti
m
e to
f
irst
deicer is 10
m
in else 40
m
in.
d) In a case o
f
reading 3 successive OCT values belo
w
–10°C and
previously 3 successive OCT values o
f
43°C (4.
7
K) , the unit
w
ill activate
deicing procedure.
Summary of Contents for KN 24 RC
Page 50: ...9 2 REFRIGERATION DIAGRAMS Revision Y06 02 Service Manual KN Series 9 1 2 KN 30 R410A...
Page 51: ...9 3 REFRIGERATION DIAGRAMS Revision Y06 02 Service Manual KN Series 9 1 3 KN 36 R410A...
Page 52: ...9 4 REFRIGERATION DIAGRAMS Revision Y06 02 Service Manual KN Series 9 1 4 KN 36T R410A...
Page 53: ...9 5 REFRIGERATION DIAGRAMS Revision Y06 02 Service Manual KN Series 9 1 5 KN 45T R410A...
Page 57: ...11 2 CONTROL SYSTEM Revision Y06 02 Service Manual KN Series 11 1 3 Main PCB Controller...
