37
1. Inverter P.C. board
MUZ-FA25VA -
MUZ-FA35VA -
MUZ-FA25VAH -
MUZ-FA35VAH -
E1
E1
E1
E1
Back side of unit
-20
-10
0
10
20
30
40
0
10
20
30
40
50
60
70
80
90
100
Temperature(
:
)
Ambient temperature thermistor(RT65)
Defrost thermistor(RT61)
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
"
)
Output to drive
outdoor fan motor
(CN932)
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)
230V AC
DB61
Connecting
wire with
power P.C.
board
(CN725)
Jumper wire for change
in defrost setting (JS)
Front side of unit
DB61
280V ~ 370V
DC
Smoothing capacitor
(C63C)
Smoothing capacitor
(C63A)
Smoothing capacitor
(C63B)
Rotational frequency
feedback signal of outdoor fan motor
(CN931)
1
(+)
2
(+)
3
(+)
4
5V
5
GND
Output to drive
compressor
(LDV,LDW,LDU)
LED monitor
lamp
Connector for indoor/out
-
door communication
(CN601)
(+)
(-)
11-7. Test point diagram and voltage
OB372 --2qxp 05.1.17 15:30 Page 37
