20
8.2.2 CU-E18RB4U
Resistance of Compressor Windings
MODEL CU-E18RB4U
CONNECTION 5KD240XAF21
U-V 0.720
Ω
U-W 0.726
Ω
V-W 0.708
Ω
Note: Resistance at 20°C of ambient temperature.
ELECTRONIC CONTROLLER
(NOISE FILTER)
FG1 (GREEN)
NOISE FILTER
CIRCUIT
COMMUNICATION
CIRCUIT
CN-BLK
(BLACK)
AC-BLK
(BLACK)
CN-WHT
(WHITE)
AC-WHT
(WHITE)
RECTIFICATION
CIRCUIT
RECTIFICATION
CIRCUIT
SWITCHING POWER
SUPPLY CIRCUIT
FUSE1
(T3.15A L250V)
FUSE2
(T3.15A L250V)
FUSE3
(25A, 250V)
COM3
(RED)
ACL1
(BLACK)
ACN1
(WHITE)
YLW/GRN
YLW/GRN
TERMINAL
BOARD
TERMINAL
BOARD
TO INDOOR UNIT
SINGLE PHASE POWER SUPPLY
AC 208-230V 60Hz
GRN
GRN
L1
1 2 3
L2
WHT
WHT
RED
GRY
GRY
BLK
L2-O
(BLACK)
PFC
CIRCUIT
THE PARENTHESIZED LETTERS IS
INDICATED ON TERMINAL COVER
BLUE
(BLU)
RED
(RED)
YELLOW (YLW)
(TRADEMARK)
COMP
.
TERMINAL
ELECTRONIC CONTROLLER (MAIN)
L2-1
(GRAY)
1
1
2
2
BLK
REACTOR
BLK
BLK
Q10
P
N
W
U
(RED) U
RED
BLU
BLU
YLW
YLW
YLW
BLU
FAN MOTOR
RED
RED
HEATER
OUTDOOR AIR
TEMP
.
SENSOR
(THERMISTOR)
PIPING TEMP
.
SENSOR
(THERMISTOR)
ELECTRO-MAGNETIC
COIL (4-WAY VALVE)
CN-HT
(BLACK)
CN-FM
(WHITE)
RY-HT
BLK
WHT
COMPRESSOR
MS
3
~
3 3
1
1
4
7
1
1
1
3
4
CN-TH1
(WHITE)
CN-HOT
(BLUE)
RY-HOT
3
1
(BLUE) V
(YELLOW) W
V
WHT
BLK
REMARKS
BLU
:
BLUE
BRW
:
BROWN
ORG
:
ORANGE
BLK
:
BLACK
YLW
:
YELLOW
WHT
:
WHITE
GRY
:
GRAY
RED
:
RED
GRN
:
GREEN
YLW/GRN
:
YELLOW/GREEN
1
6
CN-EV
(WHITE)
M
ELECTRO-MAGNETIC COIL
(EXPANSION VALVE)
COMP
.
TEMP
.
SENSOR
(THERMISTOR)
1
3
CN-TANK
(WHITE)
t°
t°
t°
CN-COM
(YELLOW)
CN-COM
(YELLOW)
1
4
4
WHT
WHT
WHT
WHT
1
M