
Wiring Diagrams
SiUS121632EA
238
Appendix
2.2
Outdoor Unit
2MXL18QMVJU
Note:
PCB1: Main PCB
PCB2: Service monitor PCB
Refer to Part 3 for Printed Circuit Board Connector Wiring Diagram.
WIRING DIAGRAM
GRN/YLW
M1C
PCB2
SW2
SW4
SW6
LED
X1M
POWER SUPPLY
A 1
SW5
3
SW1
4
2
SW3
5
BRN
L1
L1
BLU
M1F
L2
S2
L2
S501
S502
Z1C
11
5
1
1
Z2C
MS
BLK
RED
BLU YL
W
WHT
X2M
X11A
1
1
Y1S
PPL
BLU
GRN
BLK
GRN
ORG
RED
BRN
GR
Y
GRN
BLK
BRN
RED
Z5C
YL
W
YL
W
WHT
2
2
Z3C
PCB1
3
E1
3
E2
11
1
1
5
BLU
RED
BRN
ORG
BLU
RED
YL
W
YL
W
YL
W
WHT
S202
S201
BLK
WHT
SA1
X3M
4
3
2 1
3
1
7
V U
W
1
1
S70
S80
V2
2
MRM20
HL1
2
3
3
MRM10
MR4
ZF
V3
HN1
W
DB1
U
V
DC+
~
+
+
+
V401
PS
RED
1
C110
YLW
S
Z4C
~
-
-
DC-
IPM1
9
S93
S90
S92
S40
4
11
10
1
8
1
5
1
1
1
1
5
S21
S20
GR
Y
ORG
BLK
BLK
BLK
BLU
BLU
ORG
BLK
BLK
BLK
RED
RED
GR
Y
BLK
YL
W
YL
W
WHT
WHT
t˚
t˚
t˚
t˚
t˚
t˚
t˚
M
M
R5T
R2T
R9T
R3T
R4T
R1T
R10T
Q1L
Y1E
Y2E
(R
OOM A)
(R
OOM A)
(R
OOM B)
(R
OOM B)
(DISCHARGE)
(CONDENSER)
(OUTDOOR)
OUTDOOR
INDOOR
<GAS PIPE>
<LIQUID PIPE>
FIELD WIRING
TO INDOOR UNIT
ROOM B
TO INDOOR UNIT
ROOM A
WHT
ROOM A
RED
ROOM B
FU3
30A
SKY BLU
FU1
3.15A
FU2
3.15A
MS
3
~
C110
DB1
FU1, FU2, FU3
IPM1
L1, L2
LED1~LED5, LEDA
M1C
M1F
: CAPACITOR
: DIODE BRIDGE
: FUSE
: INTELLIGENT POWER MODULE
: LIVE
: PILOT LAMP
: COMPRESSOR MOTOR
: FAN MOTOR
MR4, MRM10, MRM20
PCB1, 2
PS
Q1L
R1T~R5T, R9T, R10T
S, S2~S502, X11A
SA1
SHEET METAL
: MAGNETIC RELAY
: PRINTED CIRCUIT BOARD
: SWITCHING POWER SUPPLY
: OVERLOAD PROTECTOR
: THERMISTOR
: CONNECTOR
: SURGE ARRESTER
: TERMINAL BLOCK FIXED PLATE
SW1
SW2
SW3
SW4
SW5
SW6
V2, V3, V401
X1M~X3M
: FORCED OPERATION ON/OFF SW (SW1)
: FORCED OPERATION MODE SELECT SW (SW2)
: WIRING ERROR CHECK SW (SW3)
: PRIORITY ROOM SETTING SW (SW4)
: FUNCTION SW (SW5)
: NIGHT QUIET MODE SETTING SW (SW6)
: VARISTOR
: TERMINAL BLOCK
Y1E, Y2E
Y1S
Z1C~Z5C
ZF
: ELECTRONIC EXPANSION VALVE COIL
: REVERSING SOLENOID VALVE COIL
: FERRITE CORE
: NOISE FILTER
: PROTECTIVE GROUND
: EARTH
SHEET
METAL
C: 3D100695