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Functions and control
7.2 Value of Thermistor
Domestic air conditioner
7.2.1 Outdoor Unit
Ambient Sensor, Defrosting Sensor, Pipe sensor
R25ć=10K¡f3% B25ć/50ć=3700Kf3%
Temp.(ć)
Max.(KΩ) Normal(KΩ) Min.(KΩ)
Tolerance(ć)
-30 165.2170 147.9497 132.3678 -1.94 1.75
-29 155.5754 139.5600 125.0806 -1.93 1.74
-28 146.5609 131.7022 118.2434 -1.91 1.73
-27 138.1285 124.3392 111.8256 -1.89 1.71
21
7.1.5.5˖Temperature protection of the outdoor refrigerating coil
When the defrosting temperature and the sensor’s temperature are higher than 68ć, the frequency of the
compressor decreases 1hz/10seconds. Keep the frequency until it decreases to the lowest frequency. When
the temperatures are lower than 68ć and higher than 61ć, keep the frequency of the compressor. When
the temperatures are lower than 61ć, relieve the defrosting temperature protection.
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