Mitsubishi Electronics MXZ-24UV User Manual Page 10
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10
WIRING DIAGRAM
8
POWER SUPPLY
~/N 230V
50Hz
INDOOR
UNIT (A)
CIRCUIT BRAKER
TB1
TB2
TB3
TB4
BLU
RED
TB5
X64
GRN/YLW
GRN
CN720
CN601
0
4
X64
LD62
CN913
CN791
CN901
64
2
CN902
CN851 CN852
MF61
21S4
12
21
21
12
12
34
123456
1234567
123456
C65
LD63
LD64
LDB
LDB
LD61
LDE
L61
F911
SSR61
X63
X62
X61
1
6
L
N
3
N
INDOOR
UNIT (B)
BLU
ORN
CN602
12
3
3
N
INDOOR
UNIT (C)
BLU
YLW
CN603
12
N
BLK
BRN
GRY
BLK
BLK
WHT
YLW
RED
RED
RED
BRN
BLU
ORN
YLW
WHT
ORN
WHT
BLK
BLU
YLW
RED
ORN
ORN
RED
RED
YLW
YLW
BLK
BLK
ORN
ORN
BRN
GRY
X65
X66
X67
63H2
CN552
CN553
BLK
RELAY
P.C. BOARD
WHT
WHT
RED
WHT
V
UW
A
K
L
WHT
NOISE FILTER
P.C.BOARD
RED
DS61
DS62
C61
CT
61
C63 C62
+
+
–
+
–
+
–
-
BLKRED
R
BLU
LEV A
CN792
123456
RED
BRN
BLU
ORN
YLW
WHT
LEV B
CN793
123456
RED
BRN
BLU
ORN
YLW
WHT
LEV C
CN722 CN663
63H1 RT63
CN662
1234567812 1234
RED
RED
BLK
BLK
RT66 RT68
RT67
GRY
GRY
GRY
GRY
GRY
GRY
CN661
CN705
7654321
CN515
1234
4321
CN801
CN501
TAB62
TAB63
T801
CT62
TAB66
TAB65
TAB64
I.P.M P.C. BOARD
F801
(1A)
CN704
CN514
CN554CN551
12345678
RT62
RT61
RT65
GRY
GRY
BLK
BLK
GRY
GRY
ELECTRONIC CONTROL P.C. BOARD
MC
PE
(1A)
TO INDOOR UNIT
CONNECTING 12V
SYMBOL
C61
C62,63
C65
CT61,62
DS61
DS62
F801
F911
L
L61
SYMBOL
LEV A~C
MC
MF61
R
RT61
RT62
RT63
RT65
RT66,67
RT68
NAME
POWER FACTOR CAPACITOR
SMOOTHING CAPACITOR
OUTDOOR FAN CAPACITOR
CURRENT TRANSFORMER
DIODE MODULE
DIODE STACK
FUSE (1A)
FUSE (1A)
REACTOR
COMMON MODE CHOKE COIL
NAME
EXPANSION VALVE
COMPRESSOR
FAN MOTOR (INNER PROTECTOR)
RESISTOR
DISCHARGE TEMPERATURE THERMISTOR
DEFROST TEMPERATURE THERMISTOR
EVAPORATION TEMPERATURE THERMISTOR
FIN TEMPERATURE THERMISTOR
GUS PIPE TEMPERATURE THERMISTOR
GUS PIPE TEMPERATURE THERMISTOR
SYMBOL
SSR61
T801
TB1,2,3,4,5
X61,62,63
X64,65
X66,67
21S4
63H1
63H2
NAME
SOLENOID COIL RELAY
TRANSFORMER
TERMINAL BLOCK
FAN MOTOR RELAY
RELAY
RELAY
R.V. COIL
HIGH PRESSURE SWITCH
HIGH PRESSURE SWITCH
NOTE: 1. About the indoor side electric wiring refer to the indoor unit electric wiring diagram for servicing.
2.Use copper conductors only. (For field wiring)
3.Symboles below indicate. : Terminal block : Connector
POWER SUPPLY
~/N 230V
50Hz
INDOOR
UNIT (A)
CIRCUIT BRAKER
TB1
TB2
TB3
TB4
BLU
RED
X64
GRN/YLW
GRN
CN720
CN601
0
4
X64
LD62
CN913
CN791
CN901
64
2
CN902
CN851 CN852
MF61
21S4
12
21
21
12
12
34
123456
1234567
123456
C65
LD63
LD64
LDB
LDB
LD61
LDE
L61
F911
SSR61
X63
X62
X61
1
6
L
N
3
N
INDOOR
UNIT (B)
BLU
ORN
CN602
12
3
3
N
INDOOR
UNIT (C)
BLU
YLW
CN603
12
N
BLK
BRN
GRY
BLK
BLK
WHT
YLW
RED
RED
RED
BRN
BLU
ORN
YLW
WHT
ORN
WHT
BLK
BLU
YLW
RED
ORN
ORN
RED
RED
YLW
YLW
BLK
BLK
ORN
ORN
BRN
GRY
X65
X66
X67
63H2
CN552
CN553
BLK
RELAY
P.C. BOARD
WHT
WHT
RED
WHT
V
UW
A
K
L
WHT
NOISE FILTER
P.C.BOARD
RED
DS61
DS62
C61
CT
61
C63 C62
+
+
–
+
–
+
–
-
BLKRED
R
BLU
LEV A
CN792
123456
RED
BRN
BLU
ORN
YLW
WHT
LEV B
CN793
123456
RED
BRN
BLU
ORN
YLW
WHT
LEV C
CN722 CN663
63H1 RT63
CN662
1234567812 1234
RED
RED
BLK
BLK
RT66 RT68
RT67
GRY
GRY
GRY
GRY
GRY
GRY
CN661
CN705
7654321
CN515
1234
4321
CN801
CN501
TAB62
TAB63
T801
CT62
TAB66
TAB65
TAB64
I.P.M P.C. BOARD
F801
(1A)
CN704
CN514
CN554CN551
12345678
RT62
RT61
RT65
GRY
GRY
BLK
BLK
GRY
GRY
ELECTRONIC CONTROL P.C. BOARD
MC
PE
(1A)
TO INDOOR UNIT
CONNECTING 12V
SYMBOL
C61
C62,63
C65
CT61,62
DS61
DS62
F801
F911
L
L61
LEV A~C
SYMBOL
MC
MF61
R
RT61
RT62
RT63
RT65
RT66,67
RT68
SSR61
T801
NAME
POWER FACTOR CAPACITOR
SMOOTHING CAPACITOR
OUTDOOR FAN CAPACITOR
CURRENT TRANSFORMER
DIODE MODULE
DIODE STACK
FUSE (1A)
FUSE (1A)
REACTOR
COMMON MODE CHOKE COIL
EXPANSION VALVE
NAME
COMPRESSOR
FAN MOTOR (INNER PROTECTOR)
RESISTOR
DISCHARGE TEMPERATURE THERMISTOR
DEFROST TEMPERATURE THERMISTOR
EVAPORATION TEMPERATURE THERMISTOR
FIN TEMPERATURE THERMISTOR
GUS PIPE TEMPERATURE THERMISTOR
GUS PIPE TEMPERATURE THERMISTOR
SOLENOID COIL RELAY
TRANSFORMER
SYMBOL
TB1,2,3,4,5
X61,62,63
X64,65
X66,67
21S4
63H1
63H2
F912
NR63
NAME
TERMINAL BLOCK
FAN MOTOR RELAY
RELAY
RELAY
R.V. COIL
HIGH PRESSURE SWITCH
HIGH PRESSURE SWITCH
FUSE (3.15A)
VARISTOR
NOTE: 1. About the indoor side electric wiring refer to the indoor unit electric wiring diagram for servicing.
2.Use copper conductors only. (For field wiring)
3.Symboles below indicate. : Terminal block : Connector
F912
(3.15A)
N
LD65
NR63
MODELS MXZ-24UV-
E1
OUTDOOR UNIT
SG79A845H01
MODELS MXZ-24UV-
E2
SG79Y088H01
OB287--1.qxp 03.1.16 10:29 AM Page 10
- SERVICE MANUAL 1
- MXZ-24UV 1
- TECHNICAL CHANGES 2
- PART NAMES AND FUNCTIONS 3
- E1 , MXZ-24UV- E2 4
- INDOOR UNITS COMBINATION 5
- SPECIFICATION 7
- NOISE CRITERIA CURVES6 8
- OUTLINES AND DIMENSIONS 9
- WIRING DIAGRAM 10
- REFRIGERANT SYSTEM DIAGRAM 11
- PERFORMANCE CURVES 12
- (OUTDOOR UNIT:MXZ-24UV) 13
- Outdoor unit current (A) 14
- Outdoor low pressure 14
- (MPa•Gauge) 14
- (kgf/F•Gauge) 14
- MICROPROCESSOR CONTROL 18
- 11-1.LEV control 19
- 11-3.Heat defrosting control 22
- 11-4.High pressure protection 22
- 11-7.Outdoor fan control 23
- 12 TROUBLESHOOTING 24
- Check of serial signal 28
- Check of power supply 28
- Check of R. V. coil 29
- Check of LEV 30
- Check of inverter/ compressor 30
- Check of thermistor 31
- Check of fan motor 31
- Check of HPS 32
- The other cases 32
- MXZ-24UV 33
- MXZ-24UV 33
- Electronic control P.C.board 33
- DISASSEMBLY INSTRUCTIONS 36
- OPERATING PROCEDURE PHOTOS 37
- PARTS LIST 39
- 14-3. ACCESSORY PARTS 41
- 15 OPTIONAL PARTS 42
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