38
-20
-10
0
10
20
30
40
0
10
20
30
40
50
60
70
80
90
100
Temperature(
:
)
Defrost thermistor(RT61)
Ambient temperature thermistor(RT65)
Outdoor heat exchanger temperature thermistor(RT68)
Temperature(
:
)
Discharge temperature thermistor(RT62)
0
10
20
30
40
50
60
70
80
90
100 110 120
0
100
200
300
400
500
600
700
0
10 20 30 40 50 60 70 80
0
20
40
60
80
100
120
140
160
180
200
Temperature(
:
)
Fin temperature thermistor(RT64)
Resistance(k
"
)
Resistance(k
"
)
Resistance(k
"
)
1. Inverter P.C. board
MUZ-FD25VA
MUZ-FD25VAH
11-6. Test point diagram and voltage
Back side of unit
Fin temperature
thermistor /R
T64
(CN642)
Ambient temperature
thermistor /R
T65
(CN643)
Discharge temperature
thermistor /R
T62
(CN641)
Defrost thermistor
/R
T61(CN641)
LEV
connector
(CN724)
DB61
DC260 ~300 V
Front side of unit
AC230V
Smoothing
capacitor
(C62)
Output to
drive
compressor
(LDU,
LDV,
LDW)
(+)
(-)
Fuse(F701)2
50 V 3.15 A
MUZ-FD35VA
MUZ-FD35VAH
Smoothing
capacitor
(C61)
Smoothing
capacitor
(C63)
Fuse(F801)2
50 V 3.15 A
Fuse(F901)
250 V 3.15 A
Heater
connector
(CN722)
MUZ-FD•VAH
R.V.coil
(CN721)
230 VAC
Jumper wire for
changing defrost
setting (JS)
Output to drive outdoor
fan motor (CN932)
AC230 V
Outdoor heat exchanger
temperature thermistor
/R
T68(CN644)
Jumper wire
for pre-heat
control setting
(JK)
OBH489--2.qxp 07.8.9 11:54 AM Page 38
Summary of Contents for MUZ-FD25VA
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Page 8: ...8 6 WIRING DIAGRAM MUZ FD25VA MUZ FD35VA ...
Page 9: ...9 MUZ FD25VAH MUZ FD35VAH ...
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