Mitsubishi Electric SVZ-KP18NA Service Manual page 32

10-6. TEST POINT DIAGRAM AND VOLTAGE
Inverter P.C. board
SUZ-KA09NA
Back side of unit
AC 208/230 V
Fuse (F901)
T3.15 AL 250 V
Output to drive
compressor
(LDU, LDV,
LDW)
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 50
Temperature(°F)
TCH022
SUZ-KA12NA
Smoothing
Bus-bar voltage
capacitor
DB61
(C63)
DC 260-325 V
(-) (+)
Discharge temperature thermistor(RT62)
700
600
500
400
300
200
100
0
32 50 68
68 86 104
SUZ-KA15NA
Smoothing
capacitor
(C62)
Fuse (F801)
250 V 3.15 A
LED
86 104 122 140 158 176 194 212 230 248
Temperature(°F)
32
Smoothing
capacitor
Fuse (F701)
(C61)
T3.15 AL 250 V
LEV
Jumper wire
connector
for changing
(CN724)
defrost setting
(JS)
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)
R.V.coil (CN721)
208/230 VAC
AC 208/
230 V
Jumper wire
for pre-heat
control setting
(JK)