◆Instructions for Use
Principle and Special Functions under Cooling Mode
Principle:
The air conditioner absorbs heat from indoor air and transmits it outdoors for discharge, hence to
decrease the indoor ambient temperature. The cooling capacity decreases with the rise of outdoor
ambient temperature.
Anti-freeze Function:
If the air conditioner is running under low-temperature cooling mode, frost will appear on the surface of
indoor heat exchanger. When the temperature of indoor heat exchanger is decreased to 0℃ or below,
the microcomputer of indoor unit will stop the compressor to protect the complete unit.
Principle and Special Functions under Heating Mode
Principle:
＊ The air conditioner absorbs heat from outdoor air and transmits it indoors for emission, hence to
increase the air temperature in the room. The heating capacity decreases with the reduction of the
outdoor ambient temperature.
＊ It takes only a short time for this type of hot air circulating system to increase the indoor temperature.
＊ Use this air conditioner with other heating equipment if the outdoor temperature is extremely low.
Defrost:
＊ When the outdoor temperature is low but the humidity is high, the heat exchanger of outdoor unit
may frosted after the air conditioner has run for a period of time. This will decrease the heating effect.
In this case, auto defrost function will be activated and the heating mode will temporarily stopped for
8-10 minutes.
＊ Both the indoor fan and outdoor fan will be stopped during auto defrost.
＊ During defrost, the indicator on indoor unit will blink and steam might flow from the indoor unit. This is
caused by quick defrost other than fault.
＊ Heating mode will automatically resume upon completion of defrost process.
Anti-cold Air Function:
Under heating mode, if the indoor heat exchanger fails to reach a specific temperature under following
statuses, the indoor fan will not be started, so as to avoid blowing of cold air (within 3 minutes):
1. Start of heating mode; 2. End of auto defrost; 3. Heating under low-temperature environment
★ Conditions for Air Conditioner Unable to Run Normally
Protection device might be activated within such temperature range as specified below, so that the unit
might be stopped.
Outdoor temperature
over 24℃
Outdoor temperature
below -7℃
Outdoor temperature
over 43℃
Heating
Mode
Room temperature
over 27℃
Cooling
Mode
Room temperature
below 21℃
Dehumidify
Mode
Room
temperature
below 18℃
If the unit is long put under cooling or humidify mode when relative humidity is higher than 80% (door and
windows are open), dew might drop near the air outlet.
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