Mitsubishi Electric MFZ-KA-VA Technical Data Book page 40

SEZ-KA35VA
SEZ-KA50VA
SEZ-KA60VA
SEZ-KA71VA
ORN
C1
RED
SWE
ON
ON
OFF
OFF
SW2
ON
OFF
1 2 3 4 5
See fig: 1.
[LEGEND]
SYMBOL NAME
P.B
INDOOR POWER BOARD
I.B
INDOOR CONTROLLER BOARD
CN2L CONNECTOR(LOSSNAY)
CN32
CONNECTOR(REMOTE SWITCH)
CN41
CONNECTOR(HA TERMINAL-A)
CN51 CENTRALLY CONTROL
CN90 CONNECTOR(WIRELESS)
FUSE FUSE(T6.3AL250V)
LED1
POWER SUPPLY(I.B)
LED2 POWER SUPPLY(I.B)
LED3
TRANSMISSION(INDOOR-OUTDOOR)
SW2
SWITCH(CAPACITY CODE)
SW3 SWITCH(MODE SELECTION)
SWE
SWITCH(EMERGENCY OPERATION)
X4 RELAY(FAN MOTOR LL)
X5
RELAY(FAN MOTOR Lo)
X6 RELAY(FAN MOTOR Hi)
ZNR
VARISTOR
Notes:
1. SymboIs used in wiring diagram above are,
2. Indoor and outdoor connecting wires have poIarities, make sure to match terminal numbers (S1, S2, S3) for correct wirings.
3. Since the outdoor side electric wiring may change, be sure to check the outdoor unit electric wiring diagram for servicing.
4. Since the indoor fan motor(MF) is connected with 50Hz power, if 60Hz power is used, change the wiring connection shown in fig: 2.
<fig: 2>
Indoor Fan Motor(MF)
for 60Hz
For details on how to operate self-diagnosis, refer to the service manuals etc.
MF
1 2 3 4 5 6 7 8
1 2 3 4 5 6 7 8
WHT
1 2 3 4 5 6 7
(FAN)
FAN
X6 X5 X4
X6 X5 X4
SW3
1 2 3 4 5
CN2L
CN41
CN32 CN51
SYMBOL
C1
CAPACITOR(FAN MOTOR)
MF
FAN MOTOR
TB4 TERMINAL BLOCK(INDOOR/OUTDOOR CONNECTING LINE)
TERMINAL BLOCK(REMOTE CONTROLLER
TB15
TRANSMISSION LINE)
ROOM TEMP.THERMISTOR
TH1
(0 /15kΩ,25 /5.4kΩ DETECT)
PIPE TEMP.THERMISTOR/LIQUID
TH2
(0 /15kΩ,25 /5.4kΩ DETECT)
COND./EVA.TEMP.THERMISTOR
TH5
(0 /15kΩ,25C/5.4kΩ DETECT)
: Connector,
50
60
BLUE
RED
1 3 1 3
(POWER)
(POWER
BOARD)
CNDK
FUSE
ZNR
LED3
BLK
(2 PHASE)
CN29
1 2
CN90
NAME
TH5
<fig: 1>
MODELS
: Terminal (block).
YELLOW
BLUE
40
TB4
S1
S2
TO OUTDOOR
S3
UNIT
1 2 3
I.B
ORN
1 3
CND
BLU
(CONTROL)
CN3C
1 2
BLK
WHT
1
(POWER
WHT
BOARD)
2
CN2D
LED1
LED2
RED
(INTAKE)
CN20
WHT BLU
1 2
(LIQUID) (REMOCON)
CN21 CN22
1 2
1 2
TB15
1
}
TO MA-REMOTE
2
CONTROLLER
DC8.7-13V
TH1 TH2
SW2
ON
KA35
OFF
1 2 3 4 5
ON
KA50
OFF
1 2 3 4 5
ON
KA60
OFF
1 2 3 4 5
ON
KA71
OFF
1 2 3 4 5
P.B
AC220-240V
CNSK(RED)
TRANS
DC13.1V
CN2S(WHT)