OUT-22
DUAL, TRIPLE, POKER DC Inverter : 3. Outdoor Unitis & Troubleshooting
Multi Liberty
DC Inverter
P3
P1
P2
P4
+
-
+
+ +
-
-
~
~
+
-
~
~
-
HCKU 816 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
”
Blac
k
Blue
White
Red
Red
Red
R1325
Blue
U
V
W
2-digit LED Display
8
8
Blue
R1815
CN2
A
B
C
CN21
CN13
CN15
White
Orange
Connector
Red
Red
Red
CN22
D
CN24
CN27
CN29
CN31
CN3
CN18
Red
CN32
CN12
CN11
Blac
k
Yello
w
Yello
w
CN1
CN9
CN6
Red
Yello
w
CN7
CN10
5
R2503
5
Yello
w/
Green
IMP PCB
Compressor
U(R)
V(S)
W(C)
Condenser AC
Rectifier 2
Rectifier 1
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
T
A
, T
B
, T
C
, T
D
High pressure
switch(H_PR
O)
Lo
w pressure
switch (L_PR
O)
Blue
Black
Red
IPM Module
T5
Discharge temp
. sensor