'22 • PAC-SM-412
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34
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(19) Broken wire detection on temperature sensor
(a) Outdoor unit heat exchanger temperature sersor, outdoor air temperature sensor
If the following is detected for 5 seconds continuously within 2 minutes to 2 minutes and 20 seconds after the
compressor ON or with in 20 seconds after power ON, the compressor stops. After a delay of 3 minutes, it restarts
but, if the same is detected repeatedly 3 times within 40 minutes, the compressor stops with the anomalous stop.
Note (1) During defrost operation and for 3 minutes after the end of defrost operation, it is not detected.
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Outdoor unit heat exchanger temperature sensor: -55°C or lower
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Outdoor air temperature sensor: -55°C or lower
(b)
Discharge pipe temperature sensor
If the following is detected for 5 seconds continuously within 10 minutes to 10 minutes and 20 seconds after the
compressor ON, the compressor stops. After a delay of 3 minutes, it restarts but, if the same is detected repeatedly 3
times within 40 minutes, the compressor stops with the anomalous stop.
Note (1) During defrost operation and for 3 minutes after the end of defrost operation, it is not detected.
• Discharge pipe temperature sensor: -25°C or lower
(20) Refrigerant ejection control
(a) Purpose
Countermeasures against insufficient oil level under low outdoor air temperature
(b) Operating conditions
When all of the following conditions are satisfied
(i) When the operation mode is heating
(ii) When the outdoor air temperature is less than 10 °C
(iii) When the relation between the compressor stop time and the outdoor air temperature
(TH2) falls under the shaded area
TH2 (Outdoor air temperature) °C
Compressor stop time (h)
(c) Reset condition
(i) When the operating mode is changed from heating to non-heating
(18) Silent mode
As “Silent mode start” signal is received from the remote control, it operates by dropping the outdoor fan tap.
Model
Outdoor fan tap (Upper limit)
FDC125VNP-W
Cooling: 7th speed, Heating: 7th speed
Item