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12.5. Emergency operation
When using the wireless remote control and losing the remote controller, emergency operation can be operated by pressing auto
button in the receiver.
• Press the auto button continuously within 5 seconds
If there is an abnormality in the temperature thermistor (disconnect or shorted), indoor unit cannot be operated.
If abnormality detected in the indoor or outdoor unit, turn off the main power supply and find the cause.
Check the resistance of each thermistor of both indoor and outdoor units by referring the resistance table as follows.
Thermistor resistance table
Resistance value (kΩ)±5%
Temperature Indoor Outdoor
°C Room temperature Pipe temperature Discharge temperature Pipe temperature
thermistor thermistor thermistor thermistor
-20 158.5 211.3 528.3 47.9
-10 87.5 116.7 291.8 27.1
-5 66.1 88.2 220.5 20.7
0 50.5 67.3 168.3 15.9
5 38.9 51.9 129.8 12.4
10 30.3 40.4 100.9 9.8
15 23.8 31.7 79.2 7.7
20 18.8 25.1 62.7 6.2
25 15 20 50 5
30 12.1 16.1 40.2 4
40 8 10.6 26.5 2.7
50 5.4 7.2 17.9 1.9
60 3.7 5 12.4 1.3
70 - 3.5 8.8 0.9
80 - 2.5 6.3 -
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