Hitachi RAM-52QH5, Service Manual, Page: 34 / 104

GRY
5
WHT
10
RED
~
+
~
-
11 11
CN6 (BLU)
(GRY)
CN3 (BLU)
CN4
CN2
(BLK)
CN1
(WHT)
(WHT)
CN40
CN7
(RED)
(WHT)
CN30
5
CN3A
(WHT)
CN11
(WHT)
CN41
(WHT)
CN14
(WHT)
CN15
(WHT)
ORN
GRY
CN5 (WHT)
(RED)
CN10
CN16
(RED)
CN13
(WHT)
CN8
(RED)
CN17
(BLU)
CN9
(WHT)
CN12
(WHT)
BRN
RED
GRN1
CN31
(WHT)
(WHT)
CN14 (WHT)
CN11 (WHT)
CN13
YEL
GRN3
5
BLU
U
V
YEL
RED
W
L2
YEL
+
L1
–
2
+
-
+
25A FUSE
5A FUSE
BLK
WHT
BLU
~
~
YEL
YEL
+
L
N
D1
C1
D3
C3
C2
D2
(BRN)
(BLU)
(GRN + YEL)
TERMINAL
BOARD
SW POWER
CIRCUIT
(RED)
(GRN + YEL)
(BRN)
POWER SOURCE
AC220-240V
50Hz
INDOOR UNIT 1
(GRN + YEL)
(RED)
INDOOR UNIT 2
(BRN)
(GRN + YEL)
(RED)
INDOOR UNIT 3
(BRN)
U
V
W
WHT
YEL
RED
COMPRESSOR
!
SYSTEM
POWER MODULE
REACTOR
DIODE STACK
(D15VBA60)
POWER RELAY
ICP RELAY
NF COIL 1 COIL VARISTOR 1
VARISTOR 3
POWER P.W.B.
MAIN P.W.B.
C002
C001
C025
C024
C023
C022
L007
C003
R004
C006
R002
VARISTOR 2
R005
DIODE STACK
C021
C020
REVERSING
VALVE
FAN MOTOR
BLU : BLUE
GRY : GRAY
BLK : BLACK
YEL : YELLOW
ORN : ORANGE
PNK : PINK
BRN : BROWN
GRN : GREEN
VIO : VIOLET
WHT : WHITE
RED : RED
LEGEND
!
!
! !
!
!
!
!
!
!
!
!
!
!
!
CAUTION
The marked parts are very important ones for safety.
FM
OUTDOOR THERMISTOR
DEF THERMISTOR
OH THERMISTOR
NARROW PIPE THERMISTOR 1 NARROW PIPE THERMISTOR 2 NARROW PIPE THERMISTOR 3
WIDE PIPE THERMISTOR 1 WIDE PIPE THERMISTOR 2 WIDE PIPE THERMISTOR 3
M M M
ELECTRIC EXPANSION
VALVE (FOR INDOOR 1)
ELECTRIC EXPANSION
VALVE (FOR INDOOR 2)
ELECTRIC EXPANSION
VALVE (FOR INDOOR 3)
MODEL RAM-53QH5
WIRING DIAGRAM
– 35 –
OUTDOOR UNIT