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Indoor power P.C. board, Indoor terminal P.C. board
Indoor terminal P.C. board
Indoor power P.C. board
Please replace the fuse after removing the indoor terminal P.C. board from the electrical box.
Fuse (F11)( )
Varistor (NR11)
Terminal
block
Connector to indoor electronic
control P.C. board (CN20A)
5 VDC
12 VDC
GND
Resistor (R111)
Indoor fan motor
(CN211)
(+)0-6 V
(+)3-6 VDC
15 VDC
(–) GND (high-
voltage DC)
294/325 VDC
Timer short mode point JPG JPS
(Refer to 7-1.)
Room temperature thermistor RT11 (CN111)
Indoor coil thermistor RT12, RT13 (CN112)
Vane motor (CN151)
Connector to
Indoor power P.C. board
(CN10A)
12 VDC
5 VDC
To disable "Auto restart function",
solder the Jumper wire to JR07.
(Refer to 7-3.)
Emergency operation
switch (E.O.SW) (SW1)
Indoor electronic control P.C. board
GND
Room temperature thermistor (RT11)
Indoor coil thermistor (RT12, RT13)
Temperature (°F)
Resistance (k
Ω
)
32 50 68 86 104 122 140
MSZ-GE06/09/12/15/18NA-
9
MSY-GE09/12/15/18NA-
9
MSZ-GE06/09/12/15/18NA-
9
MSY-GE09/12/15/18NA-
9
OBH548D