Mitsubishi Electric MXZ-3C24NA Service Manual page 76
Split-type air conditioners
outdoor unit
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Also See for MXZ-3C24NA:
- Service manual (154 pages) ,
- Installation manual (24 pages) ,
- Service manual (96 pages)
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2. Outdoor power P.C. board
MXZ-5C42NA MXZ-2C20NAHZ MXZ-3C24NAHZ MXZ-3C30NAHZ
CN171
Fin temperature thermistor
(RT64)
CN152
Signal
Transmission
(From Outdoor
Control P.C. board)
5 VDC pulse wave
(+)
(-)
Fin temperature thermistor (RT64)
200
180
160
140
120
100
80
60
40
20
0
0 10 20 30 40 50 60 70 80
32 50 68 86 104 122 140 158 176
Temperature
Thermistor R50 = 17 k ± 2%
B constant = 4150 ± 3%
1
273+t
t : ºC = (º
OBH702A
Output to drive compressor
Connect to reactor
Connect to reactor
(White line)
(Red line)
1
323
CNDC
Bus-bur voltage
290 - 370 VDC
CNAC2
Connect
208/230
to earth
VAC Output
76
CNAC1
Connect to earth
208/230 V Output
F1 FUSE
T6.3AL250V
F2 FUSE
T6.3AL250V
Connect
to earth
208/230 VAC Input
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