Test Point Diagram And Voltage; Inverter P.c. Board; Back Side Of Unit; Front Side Of Unit - Mitsubishi Electric MUZ-FS06NA Service Manual

10-6. TEST POINT DIAGRAM AND VOLTAGE

1. Inverter P.C. board

MUZ-FS06NA MUZ-FS06NAH MUZ-FS09NA MUZ-FS09NAH MUZ-FS12NA MUZ-FS12NAH

Back side of unit

208/230 V AC
Output to
drive
compressor
(LDU,
LDV,
LDW)
LED
Fuse (F901)
T3.15AL250V
Output to
drive outdoor
fan motor
(CN932)

Front side of unit

Defrost thermistor(RT61)
Ambient temperature thermistor(RT65)
Outdoor heat exchanger temperature thermistor(RT68)
100
90
80
70
60
50
40
30
20
10
0
-4 14 32
Temperature(°F)
OBH873
Smoothing
DB61
capacitor (C62)
260 - 370 V DC
(-) (+)
Discharge temperature thermistor (RT62)
800
700
600
500
400
300
200
100
0
32 50 68 86 104 122 140 158 176 194 212 230 248
50 68 86 104
Smoothing
capacitor (C61)
Fuse (F801)
T3.15AL250V
Temperature (°F)
44
R.V.coil (CN721)
208/230 V AC
Fuse (F701)
T3.15AL250V
208/230 V AC
Fin temperature thermistor(RT64)
200
180
160
140
120
100
80
60
40
20
0
32 50 68 86 104 122 140 158 176
Temperature(°F)