Lennox RELAX Manuel Du Propriétaire page 18

OPERATION TIPS
The following events may occur during normal operation.
1. Protection of the air conditioner.
Compressor protection
•
The compressor can't restart for 3 minutes after it stops.
Anti-cold air (Cooling and heating models only)
•
The unit is designed not to blow cold air on HEAT mode, when the indoor heat
exchanger is in one of the following three situations and the set temperature has not
been reached.
A) When heating has just starting.
B) Defrosting.
C) Low temperature heating.
•
The indoor or outdoor fan stop running when defrosting (Cooling and heating models
only). Defrosting (Cooling and heating models only)
•
Frost may be generated on the outdoor unit during heat cycle when outdoor
temperature is low and humidity is high resulting in lower heating efficiency of the air
conditioner.
•
During this condition air conditioner will stop heating operation and start defrosting
automatically.
•
The time to defrost may vary from 4 to 10 minutes according to the outdoor
temperature and the amount of frost buildup on the outdoor unit.
2. A white mist coming out from the indoor unit
•
A white mist may generate due to a large temperature difference between air inlet
and air outlet on COOL mode in an indoor environment that has a high relative
humidity.
•
A white mist may generate due to moisture generated from defrosting process when
the air conditioner restarts in HEAT mode operation after defrosting.
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 running. This is caused by heat expansion and cold contraction of the plastic
parts in the unit when the temperature is changing.
•
A noise 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 (For cooling and
heating models only) 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
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