SLEEP OPERATION
Use this mode to reduce operation sound when sleeping, etc.
Press the SLEEP button, the air flow sound from the indoor unit is decreased. Press the SLEEP button
again can release the mode.
NOTE:
During the operation of cooling, the room temperature will be raised gradually by 2 the setting after
the machine begins to operate in the sleeping mode.
During the operation of heating mode, the room temperature will be dropped gradually 5 the
setting after the machine begins to operate in the sleeping mode.
REPLACEMENT OF BATTERIES
When the signal from the remote controller becomes weak and the indoor unit can not receive it
properly; or the indications on the display screen becomes blurred, please slide the back cover and
replace with two new batteries.
Step 1. Open the battery compartment on the unit and remove exhausted batteries.
Step 2. Insert the batteries, making sure that the positive and negative poles are orientated
according to the correct polarity.
Step 3. Close the rear cover.
If when the remote controller is at abnormal state, you can take out the batteries on the back cover
to clear o the display.
Remote Controller 1 Remote Controller 2
slide the back cover
slide the front cover
BASIC PRINCIPLES AND PERFORMANCES FEATURES OF HEATING OPERATIONS
The machines absorb heat from the outdoor air and transfer it indoors so as to heat the room air. The
heating capabilities through this principle of heat pump go up/down with the increase/decrease of
the temperatures of the outdoor air.
It only needs a fairly short time for such hot air circulation system to raise the room temperature.
When the outdoor air temperature is very low, the system can be used together with other heating
devices. But good ventilation should be maintained to ensure safety and prevent accidents.
DEFROSTING
When the outdoor air temperature is very low and humidity is very high, frosting will occur to the
heat exchanger of the outdoor unit, which has negative impacts upon the efficiency of the heating
performance. In such case, the automatic defrosting function will come into play. The heating
operation will be stopped for 5-10 minutes to do the defrosting.
The fans of both the outdoor and indoor units are stopped.
During the defrosting, the outdoor unit might generate some steam. It is caused by fast defrosting,
which is not a performance failure.
Upon the completion of the defrosting process, the heating operation is resumed.
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