Mitsubishi Electric MLZ-KP09NA Service Manual

34
9-7. TEST POINT DIAGRAM AND VOLTAGE
JR05
JR06
}
Dip switch SW3
(Increase air flow
volume)
MLZ-KP09NA MLZ-KP12NA MLZ-KP18NA
Indoor electronic control P.C. board
Indoor coil thermistor [RT12,RT14,RT15 (MAIN), RT13 (SUB)]
Room temperature thermistor (RT11)
Temperature (ºC)
Resistance (kΩ)
NR11
Varistor
CN111
Room temperature
thermistor RT11
12 V DC
CN1N1
Drain pump
CN145
Float sensor
CN202
Serial signal
R111
CN125
Display P.C. board/
Receiver P.C. board
connector
To disable "Auto restart
function", cut the
Jumper wire to JR77.
(Refer to 8-3.)
CN211
Indoor fan motor
294/325 V DC
(+) 3 - 6 V DC
15 V DC
(-) GND
(High voltage DC)
(+) 0 or 15 V DC
5 V DC
GND
Timer short
mode point
(2 points)
(Refer to 8-1.)
SWV1
Changing air-
flow direction
(Refer to 8-5.)
CN151 Vane motor connector
Receiver P.C. board
Factory setting
(Do not change the setting.)
ON
OFF
123 456
SW101
CN105
Connector to optional
interface
Modica-
tion
point for
individual
operation
(Refer to
8-2.)
Indoor coil ther-
mistor RT13
(SUB)
CN113
Indoor coil ther-
mistor RT15
(MAIN 3)
[MLZ-KP18NA]
CN112
Indoor coil ther-
mistor RT14
(MAIN 2)
[MLZ-KP18NA]
Indoor coil ther-
mistor RT12
(MAIN 1)
CN301
Indoor electronic control P.C.
board connector
Display P.C. board
CN302
Indoor electronic control P.C.
board connector
SW301
Emergency operation switch
CN201
Power supply
input 208/230 V AC
F11 FUSE
T3.15AL250V
CN1M1
Display P.C.
board connector
OBH802A
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Mitsubishi Electric MLZ-KP09NA Specifications

General

Brand	Mitsubishi Electric
Model	MLZ-KP09NA
Category	Air Conditioner
Language	English