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10-7. TEST POINT DIAGRAM AND VOLTAGE
MSZ-AP15VG MSZ-AP20VG
Indoor electronic control P.C. board
To disable "Auto restart function",
cut the jumper wire to JR77.
(Refer to 8-3.)
Indoor coil thermis-
tor RT12, RT13
(CN112)
Timer short mode
point
(Refer to 8-1.)
Room temperature
thermistor RT11
(CN111)
Vane motor
(CN151)
SW P.C. board
Emergency operation
switch (E.O. SW) (SW1)
Display P.C. board
OBH838A
Power supply/
Fuse (F11)
serial cord (CN201)
T3.15AL250V
230 V AC
Receiver P.C. board
Varistor (NR11)
5 V DC
Connector for optional
interface (CN105)
29
Resistor
(R111)
Indoor fan motor
(CN211)
(+) 0 V DC or
15 V DC
(+) 2-6 V
15 V DC
(–) Fiducial
terminal of
cathode side
on measuring
high-voltage
DC
(+) 325 V DC
GND
12 V DC
Room temperature thermistor (RT11)
Indoor coil thermistor (RT12, RT13)
Temperature (°C)
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