TEST POINT DIAGRAM AND VOLTAGE
MS12NN, MS15NN, MS17NN
Indoor electronic control P.C. board
Me Lo
Hi
8 7 5 6 4
38
Fan motor power supply
3
2
1
Varistor(NR11)
Fuse AC250V 3.0A
CN201
}
Power supply input AC115V
+
}
JP7
DC12V
JP9
--
+
JP11
}
DC5V
--
JP24
JPS
Time short mode point
JPG
Indoor coil thermistor (RT12)
CN112
CN111
Room temperaure thermistor (RT11)
Room temperature thermistor (RT11)
Indoor coil thermistor (RT12)
32
50 68 86 104 122 140
F