39
9.2 Outdoor
Unit
9.2.1
CU-XE9WKUA CU-XE12WKUA
t°
t°
t°
TO INDOOR UNIT
REACTOR
BL
K
BLK
WH
T
WHT
RE
D
NOISE FILTER
CIRCUIT
DATA
(RED)
AC-BLK
(BLK)
AC-WHT
(WHT)
FG1
(GRN)
FG2
(GRN)
1
1
3
5
3
W
10
14
16
IC19
V
U
CN–MTR2
ACN2 (BLU)
HT2 (BLU)
RY-HT2
BLU
BLU
BASE PAN
HEATER
3
1
(WHT)
CN–MTR1
(RED)
PFC
CIRCUIT
RECTIFICATION
CIRCUIT
RECTIFICATION
CIRCUIT
COMMUNICATION
CIRCUIT
SWITCHING
POWER
SUPPLY CIRCUIT
FUSE 1
(20A 250V)
FUSE 6
(20A 250V)
FUSE 8
T3.15A
L250V
FUSE 3
T3.15A L250V
FUSE 5
(20A 250V)
FAN
MOTOR
GRN
GRN
1
L2
L1
2
3
TERMINAL
BOARD
CN–TH1
(WHT)
CN–TANK
(WHT)
CN–STM1
(WHT)
RED
BLU
YLW
U (RED)
V (BLU)
W (YLW)
U
V
W
1
4
1
3
1
6
P
N
Q1
OUTDOOR AIR TEMP. SENSOR (THERMISTOR)
PIPING TEMP. SENSOR (THERMISTOR)
COMPRESSOR TEMP. SENSOR (THERMISTOR)
CN–HOT
(WHT)
1
3
YLW
YLW
ELECTRO-MAGNETIC COIL
(4-WAY VALVE)
ELECTRO-MAGNETIC COIL
(EXPANSION VALVE)
COMPRESSOR
MS
3~
ELECTRONIC CONTROLLER
MS
3~
RAT2
(GRY)
GRY
RAT1
(GRY)
GRY
M
SINGLE PHASE
POWER SUPPLY
G
R
O
UNDI
NG
T
E
RM
IN
A
L
YL
W
/G
R
N
5V
G5
R22
R21
C10
G5
C9
G5
5V
G5
R28
C99
*IC8
16
15
14
13
1
2
3
4
15V
16V
*Q55
D
S
G
G4A
C401
5V
R403
C414
G6
G5
Sensor (Thermistor)
Characteristics
70
60
50
40
30
20
10
0
Res
is
tanc
e (
k
Ω
)
1
2
1
2
Outdoor Air Sensor
Outdoor Heat Exchanger
Sensor
Compressor Temp. Sensor
(Thermistor) Characteristics
70
60
50
40
30
20
10
0
Res
is
tanc
e (
k
Ω
)
Temperature °F (°C)
14
(-10)
32
(0)
50
(10)
68
(20)
86
(30)
104
(40)
122
(50)
68
(20)
104
(40)
140
(60)
176
(80)
212
(100)
248
(120)
284
(140)
Temperature °F (°C)
