Owners Manual

41
9.2.3 CU-XE18WKUA CU-XE24WKUA
Sensor (Thermistor)
Characteristics
70
60
50
40
30
20
10
0
Resistance (kΩ)
1
2
1
2
Outdoor Air Sensor
Outdoor Heat Exchanger
Sensor
Compressor Temp. Sensor
(Thermistor) Characteristics
70
60
50
40
30
20
10
0
Resistance (kΩ)
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)
Tem
p
erature °F
(
°C
)
TERMINAL
BOARD
COM3
(RED)
FG01 (GRN)
AC-BLK
(BLK)
AC-WHT (WHT)
FUSE2
(T3.15A L250V)
FUSE1
(T2.5A L250V)
CN-DCFM
(WHT)
L1 L2
BLK
BLK
WHT
GRN
YLW/GRN
SOUND PROOF BOARD
LJP117
(GRN)
GRN
WHT
RED
1
(BLK)
2
(WHT)
3
(RED)
TO INDOOR UNIT
SINGLE PHASE
POWER SUPPLY
YEL/GRN
(BLK) (WHT)
(RED)
REACTOR
L1-O
(BLK)
L2-I
(GRY)
1
1
2
2
P
Q10
N
U
(RED)
(BLU)
(YEL)
RED
RED
BLU
BLU
YEL
RED
BLU
YEL
YEL
WHT
BLK
COMPRESSOR
CN-TH1
(WHT)
CN-TANK
(WHT)
CN-EV
(WHT)
CN-HOT
(BLU)
1
11
33
1
1
1
6
ELECTRO-MAGNETIC COIL
(EXPANSION VALVE)
ELECTRO MAGNETIC COIL
(4-WAY VALVE)
COMP TEMP.
SENSOR
(THERMISTOR)
OUTDOOR AIR
TEMP. SENSOR
(THERMISTOR)
4
3
t°
t°
t°
7
MS
3~
M
M
V
W
U
V
W
GRY
BLK
GRY
BLK
13
COMMUNICATION
CIRCUIT
NOISE FILTER
CIRCUIT
ELECTRONIC
CONTROLLER
FAN
MOTOR
BLU
PFC
CIRCUIT
RECTIFICATION
CIRCUIT
SWITCHING
POWER
SUPPLY
CIRCUIT
RECTIFICATION
CIRCUIT
PIPING
TEMP. SENSOR
(THERMISTOR)
GROUNDING
TERMINAL
RY-HOT
CABINET
SIDE
PLATE
YEL/GRN
SOUND
PROOF
BOARD
CONTROL
BOX
COVER
ELECTRONIC
CONTROLLER
(HEATER)
BASE PAN
HEATER
33
1
1
BLU
BLU
HT1
(BLU)
ACL (BRW)
BRW
5
5
CN-HT1
CN-HT2
RY-HT1
HT1 (BLU)
ACL (BRW)
1
1
FUSE3
(25A, 250V)
5V
R100
15.0k
R101
15.8k
C45
1µ
6.3V
C46
1µ
6.3V
5V
R410
4.99k
*D33
*D34
*D35
*D36
13V
e
b
*Q29
4.7k
10k
c
15V_2
*R443
*R444
*C251 *C249
*R464
5V
13V
*RY-HT2
*RY-HT1
1
2
3
4
5
6
7
16
9
IC9
GND
8
15
14
13
12
11
10
13V
13V