OUT-21
DUAL, TRIPLE, POKER DC Inverter : 3. Outdoor Unitis & Troubleshooting
Multi Liberty
DC Inverter
HCKU 706 Outdoor Unit X4
CN1
P
N
P-1
Red
CT1
L
N
Red
Blac
k
Te
m
pe
ra
tu
re
s
en
so
r
(Gas side), “A
”
Te
m
pe
ra
tu
re
s
en
so
r
(Gas side), “B
”
Heat exchanger temp. sensor
, T3
Room temp. sensor
, T4
Te
m
pe
ra
tu
re
s
en
so
r
(Gas side), “C
”
Te
m
pe
ra
tu
re
s
en
so
r
(Gas side), “D
”
Blue
Blue
Blac
k
Red
U
V
W
CN2
A
B
C
CN21
CN13
CN14
CN22
D
CN24
CN27
CN29
CN31
CN3
CN18
CN32
CN12
CN11
Blac
k
Yello
w
Yello
w
CN1
CN9
CN6
CN7
CN10
5
5
IPM Module
Yello
w/
Green
IPM PCB
Compressor
U(R)
V(S)
W(C)
CN26
CN28
Valve “A”
Valve “B”
Valve “C”
Valve “D”
EEV valve
Unit “A”
EEV valve
Unit “B”
CN25
CN23
EEV valve
Unit “C”
EEV valve
Unit “D”
(T
o Indoor Unit
“B”)
(T
o Indoor Unit
“C”)
(T
o Indoor Unit
“D”)
(T
o Indoor Unit
“A”)
Y ello
w/Green
Y ello
w/Green
Y ello
w/Green
Filter
Yello
w/
Green
4-w
ay v
alv
e coil
Fan motor’s
condenser
Compressor heater
Yello
w/
Green
Fan motor
P
o
wer Suppl
y:
1-Phase
, 220~240V
,
50Hz
R
Y1
4
3
Main PCB
Yello
w/
Green
Discharge temp
. sensor
Red
Blue
Red
Condenser
AC
Red
R1815
Orange
Red
Rectifier 2
Rectifier 1
R1325
Blue
Red
Red
R2503
White
White
P3
P1
P2
P4
+
-
+
+
+ +
-
-
-
~
~
~
~
-
T
A
, T
B
, T
C
, T
D
2-digit LED Display
8
8
Compressor’s
thermal protection
T5