53
TEST POINT DIAGRAM AND VOLTAGE
MS12NN MS15NN MS17NN MS12NN2 MS15NN2 MS17NN2
Indoor electronic control P.C. board
Fuse 250V AC 3.0A
Power supply input 115V AC
+
--
}
5V DC
Indoor coil thermistor (RT12)
Timer short mode point
Room temperature
thermistor (RT11)
12V DC
32
F
50 68 86 104 122 140
}
Room temperature thermistor (RT11)
Indoor coil thermistor (RT12)
Varistor(NR11)
CN201
+
--
}
8 7 5 6 4 3 2 1
Me Lo Hi
Fan motor power supply
}
JP7
JP9
JP24
JP11
CN112
JPG
JPS
CN111
EMERGENCY
OPERATION switch