Wiring Diagram - Mitsubishi Electric MXZ-18NV Service Manual

7

WIRING DIAGRAM

TB
POWER SUPPLY
N
220-240V
~/N
L
50Hz
CIRCUIT BREAKER
TB
DC24V
3
INDOOR
TO
N
UNIT (B)
INDOOR
UNIT
CONNECTING DC24V
3
INDOOR
N
UNIT (A)
SYMBOL NAME
SURGE ABSORBER
AR61
C61
POWER-FACTOR CAPACITOR
C63 CERAMIC CAPACITOR
C64
CERAMIC CAPACITOR
C65 OUTDOOR FAN CAPACITOR
SMOOTHING CAPACITOR
C67
CT61 CURRENT TRANSFORMER
DIODE MODULE
DS61,63
FUSE1 FUSE(1A)
FUSE2
FUSE(3.15A)
F62 FUSE(3.15A)
HPS HIGH PRESSURE SWITCH
NOTE:1. For the outdoor electric wining refer to the outdoor unit electric wining diagram for servicing.
2. Use copper conductors only.(For field wining)
3. Symbols below indicate.
: Terminal block,
4. " "shows the terminals with a lock mechanism,so they cannnot be removed when you pull
the lead wire.
Be sure to pull the wire by pushing the locking lever (project part) of the terminal with a finger.
MODELS MXZ-18NV-
GRN/YLW
2 NF62
4
BLU
3
BRN BRN
1
RED
LD71
RED
C61
BLU
+
C63
- +
LD72
C64
-
RED ~
~
BLU
~
BLU DS61
GRN
CT61
X64
NR61
3 4
AR61
R64
RELAY P.C.BOARD
SYMBOL
L REACTOR
LEV A,B EXPANSION VALVE
L61 CMC COIL
MC COMPRESSOR
MF OUTDOOR FAN MOTOR(INNER THERMOSTAT)
NF61,62 NOISE FILTER
NR61 VARISTOR
RT61 DEFROST TEMPERATURETHERMISTOR
RT62 DISCHARGE TEMPERATURETHERMISTOR
RT63 FIN TEMPERATURETHERMISTOR
RT64 GAS PIPE TEMPERATUREB.THERMISTOR
RT65 GAS PIPE TEMPERATUREA.THERMISTOR
: Connector
MXZ-18NV-
E1
WHT
WHT
2 NF61
4
C67
+ -
3
1
BLK
LD73
L61
LD74
LD77
BLU
BRN
1 1
1 2
YLW CN801
2 2
YLW
3 3 FUSE1
YLW
4 4
RED
1
BLU
2
3
RED
4
BLU
CN761 CN771
5
1 2 3 4 5 1 2 3 4
6
LEV A LEV B
NAME
E2
V
L
MC
WHT
U
DS63
~
+
RED
~ -
RED
R65
BLK
BLU
BuP BvP BwP
RED EuP EvP
P U
V
N
BuN BvN BwN
EuN EvN
21S4
1 2 1 2 4 3 2 1
CN61
CN621
CN731
C65
FUSE2
ELECTRONIC CONTROL
SSR61
P.C.BOARD
CN682 CN661 CN683 CN681
5 6 1 2 3 1 2 1 2 3 4 1 2 3 4
RT62 RT63 RT64 RT65 RT66
SYMBOL
RT66 SUCTION TEMPERATURETHERMISTOR
RT67 EVAPORATION TEMPERATURETHERMISTOR
R64 CURRENT-LIMITING RESISTOR
R65 CURRENT-DETECTING RESISTOR
SSR61 SOLID STATE RELAY
TB TERMINAL BLOCK
TR POWER TRANSISTOR MODULE
T801 TRANSFORMER
X60,67 FAN MOTOR RELAY
X64 RELAY
21S4 R.V.COIL
MF
W
BLK BLK
1
WHT WHT
2
RED RED
3
TR
EwP
W
EwN
BRN
1 2 3 4 5 6
TAB91 8
RED
CN63
7
6
X67
ORN
5
YLW
4
X60
3
GRN
2
CN641 CN671
BLU
1
4 3 2 1 1 2
RT67 RT61 HPS
NAME
1.Slide the sleeve.
2.Pull the wire while
pushing the locking
lever.
13