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9-7. TEST POINT DIAGRAM AND VOLTAGE
MSZ-EF09NAW
MSZ-EF09NAB
MSZ-EF09NAS
Indoor power P.C. board
Connector to terminal
block (CN201)
Connector to indoor
electronic control P.C.
board (CN202)
Indoor electronic
control P.C. board
Receiver P.C board
Vane motor
(CN151)
Display P.C board
Room temperature
thermistor RT11 (CN111)
Indoor coil
Switch P.C board
thermistor RT12,
RT13 (CN112)
OBH736C
MSZ-EF12NAW
MSZ-EF12NAB
MSZ-EF12NAS
GND
Timer short mode
point JPG JPS
(Refer to 8-1.)
Emergency operation
switch (E.O.SW) (SW1)
MSZ-EF15NAW
MSZ-EF15NAB
MSZ-EF15NAS
Fuse (F11)
Varistor (NR11)
Connector to power
P.C. board (CN102)
12 V DC
5 V DC
To disable "Auto restart function",
cut the Jumper wire to JR77.
(Refer to 8-4.)
30
MSZ-EF18NAW
MSZ-EF18NAB
MSZ-EF18NAS
Indoor fan motor
(CN211)
325 V DC
(–) GND (high-
voltage DC)
15 V DC
(+)3-6 V DC
(+)0 or 15 V DC
Resistor (R111)
approximately
3.9 Ω
Room temperature thermistor (RT11)
Indoor coil thermistor (RT12, RT13)
32 50 68 86 104 122 140
Temperature (°F)
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