Service Manual

Wiring Diagrams SiUS071735E
131 Appendix
RX15/18/24RMVJU
Note: PCB: Main PCB
Refer to Part 3 for Printed Circuit Board Connector Wiring Diagram.
WIRING DIAGRAM
FIELD WIRING
INDOOR
MRM20
IPM1
X1M
DB1
TO INDOOR UNIT
HL1
~
+
+
1L1
BLK
1
MRM10
HN1
ZF
V2
WHT
2
L2 2
+
~
S
PA M
C7
-
-
3
RED 3
V3
-
V1
L1
WV U
GRN/YLW
L2
SA1
PS
E1
POWER SUPPLY
MRCW
BLU RED YLW
E2
GRN
S40 S70S20 S90
X11A
S80
471
1
123
6
611
PCB
GRN
OUTDOOR
BLK BLK BLU RED ORG BLK BLK BLK BLK BLK BLK
RED RED
BRN ORG BLU RED WHT WHT YLW
NOTE
1. REFER TO THE NAMEPLATE FOR THE POWER REQUIREMENTS.
V
U
W
t˚ t˚t˚
MS
M
Y1S
Q1L
Y1E
M1CM1F
: GROUND
N=5
Z3C
N=4
Z2C
FU3
30A
FU1
3.15A
FU2
3.15A
Z1C
N=4
MS
3
~
R1T
(OUTDOOR)
R2T
(CONDENSER)
R3T
(DISCHARGE)
IN CASE OF
HEAT PUMP TYPE
C7
DB1
FU1, FU2, FU3
IPM1
L1, L2
M1C
M1F
MRM10, MRM20,
MRCW
PA M
PCB
: CAPACITOR
: DIODE BRIDGE
: FUSE
: INTELLIGENT POWER MODULE
: LIVE
: COMPRESSOR MOTOR
: FAN MOTOR
: MAGNETIC RELAY
: PULSE AMPLITUDE MODULATION
: PRINTED CIRCUIT BOARD
PS
Q1L
R1T, R2T, R3T
S20, S40, S70,
S80, S90, X11A
SA1
: SWITCHING POWER SUPPLY
: OVERLOAD PROTECTOR
: THERMISTOR
: CONNECTOR
: SURGE ABSORBER
V1, V2, V3
X1M
Y1E
Y1S
Z1C, Z2C, Z3C
ZF
: VARISTOR
: TERMINAL BLOCK
: ELECTRONIC EXPANSION VALVE COIL
: REVERSING SOLENOID VALVE COIL
: FERRITE CORE
: NOISE FILTER
3D105962A