Service Manual

100
MXZ-3C24NA MXZ-3C30NA MXZ-4C36NA
MXZ-3C24NA2 MXZ-3C30NA2 MXZ-4C36NA2
2. Outdoor power P.C. board
Output to drive compressor
Connect to earth
Connect to reactor
(Red line)
Connect to reactor
(White line)
CNDC
Bus-bar voltage
290 - 370 V DC
CNAC1
208/230 V AC Output
F2 FUSE
T6.3AL250V
F1 FUSE
T6.3AL250V
208/230 V AC
Input
CNAC2
208/230 V AC
Output
Connect to earth
CN152
Signal Transmission
(From Outdoor
Control P.C. board)
5 VDC pulse wave
(
- )
(+)
CN171
Fin temperature thermistor
(RT64)
CN151 Signal transmission (To Outdoor control P.C. board) 5 V DC pulse wave
(+) (-) (-) 15 V 15 V
200
180
160
140
120
100
80
60
40
20
0
5HVLVWDQFHN
Temperature
)
&
Fin temperature thermistor (RT64)
Thermistor R50 = 17 k ± 2%
B constant = 4150 ± 3%
5W H[S^`
t : ºC = (º)
273+t
1
323
1
32 50 68 86 104 122 140 158 176
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