Qlima SM52 MULTI Manuel D'utilisation page 107

3. Low noise of the air conditioner.
• You may hear a low hissing sound when the compressor is running or has just stopped running. This
sound is the sound of the refrigerant flowing or coming to a stop.
• You can also hear a low "squeak" sound when the compressor is running or has just stopped run-
ning. This is caused by heat expansion and cold contraction of the plastic parts in the unit when the
temperature is changing.
• A sound may be heard due to louver restoring to its original position when power is first turned on.
4. Dust is blown out from the indoor unit.
• This is a normal condition when the air conditioner has not been used for a long time or during first
use of the unit.
5. A peculiar smell comes out from the indoor unit.
• This is caused by the indoor unit giving off smells permeated from building material, from furniture,
or smoke.
6. The air conditioner turns to FAN only mode from COOL or HEAT mode.
• When indoor temperature reaches the temperature setting on air conditioner, the compressor will
stop automatically, and the air conditioner turns to FAN only mode. The compressor will start again
when the indoor temperature rises on COOL mode or falls on HEAT mode to the set point.
7. Dripping water may generate on the surface of the indoor unit when cooling in a high relatively
humidity (relative humidity higher than 80%). Adjust the horizontal louver to the maximum air out-
let position and select HIGH fan speed.
8. Heating mode.
• The air conditioner draws in heat from the outdoor unit and releases it via the indoor unit dur-
ing heating operation. When the outdoor temperature falls, heat drawn in by the air conditioner
decreases accordingly and the heating capacity will decrease. At the same time, heat loading of the
air conditioner increases due to larger difference between indoor and outdoor temperature. If a com-
fortable temperature cannot be achieved by the air conditioner, it is advised to use a supplementary
heating device.
9. Auto-restart function.
• Power failure during operation will stop the unit completely.
The air conditioner is equipped with Auto-restart feature, when the power restores, the unit restarts
automatically with all the previous settings preserved by the memory function.
10. Refrigerant leak detection.
• The air conditioner is provided with a Refrigerant leak detection system.
When the outdoor unit detects a shortage of refrigerant, the air conditioner will stop and the indoor
unit shows the alarm EC on the display.
When this alarm occurs, do not restart the air conditioner and contact your supplier.
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