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7
WIRING DIAGRAM
MVZ-A12, 18, 24, 30, 36AA4
1
(BLUE)
SW1
CN3C
3
SW2
CN90
OFF
1
SWE
2
ON
3
SW5
4
5
6
7
8
9
LED3
(GREEN)
CNF
CN44
CN4F
(RED)
1
CN20
1
2
2
3
3
4
4
1 2 3 4 5 6 7 8 9
CN1
LED1
BZ1
RU
SW1
SW2
W.B.
t˚
t˚
t˚
OPTIONAL PARTS
TH2 TH5
TH1
SYMBOL EXPLANATION
SYMBOL
NAME
INDOOR CONTROLLER BOARD
I.B.
CONNECTOR (HEATER CONTROL 1ST)
CN24-1
CN24-2
CONNECTOR (HEATER CONTROL 2ND)
CONNECTOR (HUMIDITY OUTPUT)
CN25
CONNECTOR (0-10V ANALOG INPUT)
CN2A
CN2C
CONNECTOR (ERV OUTPUT)
CONNECTOR (LOSSNAY)
CN2L
CONNECTOR (REMOTE SWITCH)
CN32
CN41
CONNECTOR (HA TERMINAL-A)
CONNECTOR (CENTRALLY CONTROL)
CN51
CONNECTOR (WIRELESS)
CN90
CN105
CONNECTOR (RADIO FREQUENCY INTERFACE)
CONNECTOR (ERV INPUT)
CNER
CONNECTOR (HUMIDITY INPUT)
CNF
LED1
LED(POWER SUPPLY)
LED(REMOTE CONTROLLER SUPPLY)
LED2
LED(TRANSMISSION INDOOR-OUTDOOR)
LED3
I.B.
5
CN32
4
(RED)
3
CN105
2
1
LED2
(BLACK)
CN2A
CN41
(RED)
CN25
(BLUE)
2
CNER
1
CN22
(BLACK)
(BLUE)
CN51
CN2C
CN24-2
(BLUE)
CNXB2
LED1
CNXA2
(YELLOW)
(RED)
1
2
1
CN24-1
CN2L
CNXC2
3
2
1
4
1
3
2
5
2
4
SYMBOL
NAME
I.B.
INDOOR CONTROLLER BOARD
SWITCH (FOR MODEL SELECTION)
SW1
SW2
SWITCH (FOR CAPACITY CODE)
SWITCH (FOR MODE SELECTION)
SW5
CONNECTOR (EMERGENCY OPERATION)
SWE
P.B.
POWER SUPPLY BOARD
FUSE AC250V 6.3A
F01
VARISTOR
ZNR01,02
DSA
ARRESTOR
X10
AUX.RELAY
TH1
INTAKE AIR TEMP. THERMISTOR
TH2
.
PIPE TEMP
THERMISTOR/LIQUID
TH5
.
.
.
COND
/EVA
TEMP
THERMISTOR
TERMINAL BLOCK
TB4
(INDOOR/OUTDOOR CONNECTING LINE)
TERMINAL BLOCK
TB15
(REMOTE CONTROLLER TRANSMISSION LINE)
RFI
RADIO FREQUENCY INTERFACE FOR RF THERMOSTAT
RFI
INSIDE SECTION OF CONTROL BOX
(RED)
1
3
5
CND
DSA
F01
U
ZNR01
ZNR02
U
DC280-340V
X10
RECTIFIER CIRCUIT
(BLUE)
CNXB1
CNXC1
CNXA1
CNMF
1 2 3
4
5
1 2
1
2
3
4
7 6 5 4
MS
3~
FAN MOTOR
SYMBOL
NAME
OPTIONAL PARTS
IR WIRELESS REMOTE CONTROLLER BOARD
W.B.
RU
RECEIVING UNIT
BZ1
BUZZER
LED1
LED(RUN INDICATOR)
SW1
SWITCH(HEATING ON/OFF)
SW2
SWITCH(COOLING ON/OFF)
WIRED REMOTE CONTROLLER BOARD
R.B.
TERMINAL BLOCK
TB6
(REMOTE CONTROLLER TRANSMISSION LINE)
17
TRANSMISSION
WIRES DC 12V
TB15
TB6
1
1
2
2
R.B.
REMOTE CONTROLLER
TB4
S1
OPTIONAL PARTS
S2
TO OUTDOOR UNIT
S3
P.B.
SWITCH
MODEL
ON
ON
ON
MVZ-A12AA4
1
2
3
4
5
1
2
3
4
5
1
ON
ON
ON
1
MVZ-A18AA4
1
2
3
4
5
1
2
3
4
5
1
ON
ON
ON
MVZ-A24AA4
1
2
3
4
5
1
2
3
4
5
1
ON
ON
ON
MVZ-A30AA4
1
2
3
4
5
1
2
3
4
5
1
ON
ON
ON
MVZ-A36AA4
1
2
3
4
5
1 2 3 4 5
1
Note1.Since the outdoor side electric wiring may change be sure
to check the outdoor unit electric wiring for servicing.
2.Indoor and outdoor connecting wires are made with
polarities,make wiring matching terminal numbers
(S1,S2,S3).
3.Symbols used in wiring diagram above are as follows.
:CONNECTOR
:TERMINAL
(HEAVY DOTTED LINE):FIELD WIRING
(THIN DOTTED LINE):OPTIONAL PARTS
4.Use copper supply wire.
UTILISER DES FILS D'ALIMENTATION EN CUIVRE.
2
3
4
5
6 8
7
2
3
4
5
6 8
7
2
3
4
5
6 8
7
2
3
4
5
6 8
7
2
3
4
5
6 8
7
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