84
Indoor coil thermistor (RT12)
Room temperature thermistor (RT11)
0
0
10
20
30
40
10 20
30 40 50
60
Temperature (
°
C)
Resistance (K
'
)
4. Test point of P.C.board
(1) Indoor electronic control P.C. board
Fan motor power supply 220 - 240V AC
7
5
6
4
3
2
1
8
Lo
60Hz
Hi
Fuse 250V AC 3.15A
Power supply
input 220-240V AC
12V DC
5V DC
+
–
+
–
Time short point
Indoor coil thermistor (RT12)
VLo
Lo
50Hz
Room temperature thermistor (RT11)
OC281-B-3.qxp 04.2.10 2:23 PM Page 84