Mitsubishi Electric NTXMMX A AA Series Service Manual page 36

NTXUKS09A112BA NTXUKS12A112BA NTXUKS18A112BA
Indoor electronic control P.C. board
CN105
Connector to optional
interface
5 V DC
CN211
Indoor fan motor
294/325 V DC
(-) GND
(High voltage DC)
15 V DC
(+) 3 - 6 V DC
(+) 0 or 15 V DC
CN151 Vane motor connector
Receiver P.C. board
CN301
Indoor electronic control P.C.
board connector
Display P.C. board
SW301
Emergency operation switch
OBHT802B
CN1N1
Drain pump
R111
12 V DC
CN125
Display P.C. board/
Receiver P.C. board
connector
To disable "Auto restart
function", cut the
Jumper wire to JR77.
(Refer to 7-3.)
CN302
Indoor electronic control P.C.
board connector
Factory setting
(Do not change the setting.)
SW101
CN145 CN202
Float sensor Serial signal
Timer short
mode point
(2 points)
(Refer to 7-1.)
Indoor coil thermistor [RT12,RT14,RT15 (MAIN), RT13 (SUB)]
Room temperature thermistor (RT11)
36
ON
1 2 3 4 5 6
OFF
F11 FUSE
T3.15AL250V
CN201
Power supply
input 208/230 V AC
CN1M1
Display P.C.
board connector
CN111
Room temperature
thermistor RT11
JR05
JR06
Dip switch SW3
(Increase air flow
volume)
SWV1
GND
Changing air-
flow direction
(Refer to 7-5.)
Temperature (ºC)
NR11
Varistor
CN112
Indoor coil ther-
mistor RT14
(MAIN 2)
[NTXUKS18A112BA]
Indoor coil ther-
mistor RT13
(SUB)
Indoor coil ther-
mistor RT12
(MAIN 1)
CN113
Indoor coil ther-
mistor RT15
(MAIN 3)
[NTXUKS18A112BA]
Modifica-
}
tion
point for
individual
operation
(Refer to
7-2.)