16
6-4. Test point of indoor controller board
Indoor controller board
•Room temperature thermistor (RT11)
•Pipe temperature thermistor/liquid (RT12)
•Condenser/evaporator temperature
thermistor (RT13)
0
10
20
30
40
50
-20 -10
0
10 20 30 40 50
< Thermistor for lower temperature >
Temperature (
:
)
Resistance (K
"
)
Fuse 250V AC 3.15A
Room temperature thermistor (RT11)
Pipe temperature thermistor/liquid (RT12)
Power supply
input 220-240V AC
Drain sensor (DS)
Condenser/evaporator
temperature thermistor
(RT13)
OC303-A-1.qxp 04.9.21 4:08 PM Page 16
