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Haier air conditioner Edition: 20070116
-10-
2.1.1 Standard of temperature sensor under indoor environment.
When the line is in short circuit or open circuit, the indicator light will be alarming and the indoor fan
motor will be off. It will resume to the original state automatically after it returns normally, and operates
as usual.
Short circuit:
Temperature: above 126 degrees,
Hex: Above F8H,
Value of Resistance: Below 0.65K, above 4.85V.
Normal temperature:
Temp: 25 degrees,
Hex: 40H,
Value of Resistance: 23K,
Voltage: 2.33V.
Power failure:
Temp: below -31 degrees,
Hex: below 08H,
Value of Resistance: Below 620K,
Voltage: Below 0.15V.
B parameter=4200
R (25degrees) =23K
2.1.2 Value of Resistance of indoor temperature sensor is ignored, when the heat mode is ON and the
indoor fan is OFF, as well as after warm start indoor fan operate for 30 seconds. (in order to avoid
affection of heat exchanger)
2.2 When frequency increase to holding frequency
In order to oil return fully during operating, the system will must keep some frequencies for a period of
time.
Time Indication Frequency indication
Drying in cool mode Heat Defrosting in heat mode Holding frequency
60 seconds 60 seconds 30 seconds 58Hz
After Forced operation OFF at the start status, system will begin to control the temperature area.
2.3 Preset temperature correction
The preset temperature is corrected according to the operating mode, air capacity and forced
operation status.
Only in the heat mode to correct the air capacity, confine to the low and middle speed of the air
capacity.
Corrected value table for preset temperature: