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7.1.5.5 Temperature protection of the outdoor refrigerating coil
When the defrosting temperature and the sensor's temperature are higher than 68 , the frequency of the
compressor decreases 1hz/10seconds. Keep the frequency until it decreases to the lowest frequency. When
the temperatures are lower than 68
the temperatures are lower than 61 , relieve the defrosting temperature protection.
7.2 Value of Thermistor
7.2.1 Outdoor Unit
R25 =10K
3% B25 /50 =3700K 3%
Temp.( )
-30
-29
-28
-27
and higher than 61 , keep the frequency of the compressor. When
Ambient Sensor, Defrosting Sensor, Pipe sensor
Max.(KΩ)
Normal(KΩ)
165.2170
147.9497
155.5754
139.5600
146.5609
131.7022
138.1285
124.3392
Min.(KΩ)
132.3678
125.0806
118.2434
111.8256
21
Functions and control
Tolerance( )
-1.94
1.75
-1.93
1.74
-1.91
1.73
-1.89
1.71
Domestic air conditioner
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