Mitsubishi Electric MSZ-FE12NA Service Manual download pdf (Page 34)

MSZ-FE09NA MSZ-FE12NA

1. Indoor electronic control P.C. board

9-7. TEST POINT DIAGRAM AND VOLTAGE

Room temperature thermistor (RT11)

Indoor coil thermistor (RT12, RT13)

Temperature (°F)

Resistance (kΩ)

50 68 86 104 122 140

Release of Auto restart function

Solder the Jumper wire JR07

(Refer to 7-3.)

12 VDC

Varistor (NR11)

5 VDC

Room temperature

thermistor RT11

(CN111)

Indoor coil thermistor

RT12, RT13 (CN112)

Timer short mode

point JPG, JPS

(Refer to 7-1.)

}

SW P.C. Board

i-see Sensor

(CN110)

Fuse

(F11)

Vertical vanes (CN151)

CN201

(Used for check of con-

ducting of thermal fuse)

(+)0 or 15 VDC

(+)3 - 6 VDC

VDC

(-) Fiducial terminal of

cathode side on measur-

ing high-voltage DC

294/325 VDC

Cement resistor

(R111)

Indoor fan motor

(CN211)

Emergency

operation

switch (SW1)

208/230 VAC

Power supply input

{

(LD101)

- : Connect to the monitor P.C. board

- : Connect to the power monitor receiver

P.C.board

Horizontal vane (CN1U1)

2. Power monitor receiver P.C. board

3. Monitor P.C. board

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Mitsubishi Electric MSZ-FE12NA Service Manual Page 34

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