Indoor power P.C. board, Indoor electronic control P.C. board, Receiver board, Display board, Switch board
MSZ-FS06NA MSZ-FS09NA MSZ-FS12NA MSZ-FS15NA MSZ-FS18NA
32
Indoor electronic control P.C. board
Indoor power P.C. board
Fuse (F11)
Varistor (NR11)
Indoor fan motor
(CN211)
(+)0 or 15 VDC
(+)3-6 VDC
15 VDC
(–) GND (high-
voltage DC)
294/325 VDC
Connector
Terminal Block
(CN201)
Connector to indoor
electronic control
P.C. board (CN202)
Receiver board
(CN301)
Display board
Switch board
Resistor (R111)
GND
5 VDC
GND
Timer short
mode point
JPG JPS
(Refer to 7-1.)
To disable "Auto restart
function" cut the Jumper
wire to JR77. (Refer to 7-4.)
Emergency operation switch (E.O.SW) (SW1)
Connector to indoor
power P.C. board
(CN102)
Indoor coil thermistor
RT12, RT13 (CN112)
9-7. TEST POINT DIAGRAM AND VOLTAGE
12 VDC
5 VDC
i-see SENSOR
MOTOR MT
i-see sensor
~
pin
~
pin
,
,
,
,
pin
~
pin
CN110
Vane motor MV1
(horizontal)
Vane motor MV2
(vertical)
CN151
~
pin
~
26
pin
12 VDC
Room temperature
thermistor RT11 (CN111)
Connector cable (CN24)
Interface
(CN105)
Room temperature thermistor (RT11)
Indoor coil thermistor (RT12, RT13)
Temperature (°F)
Resistance (kΩ)
32 50 68 86 104 122 140
OBH872
