29
Indoor fan motor
(CN211)
(+) DC0V or
DC15V
(+) 2-6V
15VDC
(–) Fiducial
terminal of
cathode side
on measuring
high-voltage
DC
(+) 325VDC
Room temperature
thermistor RT11
(CN111)
Indoor coil thermis-
tor RT12, RT13
(CN112)
Vane motor
(CN151)
12VDC
5VDC
Timer short mode
JPG JPS
(Refer to 8-1.)
}
To disable "Auto restart function",
solder the Jumper wire to JR07 ( )
(Refer to 8-4.)
MSZ-SF15VA MSZ-SF20VA
Indoor electronic control P.C. board
10-7. Test point diagram and voltage
Display P.C. board
Receiver P.C. board
SW P.C. board
Resistor
(R111)
Room temperature thermistor (RT11)
Indoor coil thermistor (RT12, RT13)
Temperature (°C)
Resistance (k
Ω
)
Fuse (F11)
T3.15AL250V
Varistor (NR11)
AC230V
Emergency operation
switch (E.O. SW) (SW1)
Connector for optional
interface (CN105)
GND
Power supply/
serial cord (CN201)
OBH555D
