User Manual

Operating Recommendations
E-10
Here are a few recommendations that you should follow when operating
your air conditioner.
Topic Recommendation
The heat pump function of the air conditioner absorbs heat
from
outside air and brings it indoors. As the temperature of the
outside
air drops, the heating performance of air conditioner will
decrease. If you find that the room is not warm enough, using
an additional heating appliance is recommended.
Heating
performances
When outside temperature is low but humidity is high,
frost may form on the outdoor unit at HEAT mode.
If this happens:
◆ The heating operation stops.
◆ The defrost mode will be triggered automatically for about ten
minutes.
No intervention is required ; after about ten minutes, the air
conditioner operates again normally.
Frost
If both indoor and outdoor temperatures are high and the air
conditioner is running at HEAT mode, the outdoor unit’s fan
and compressor may stop at times.
This is normal ; simply wait until the air conditioner switches
on again.
High indoor
and outdoor
temperatures
If a power failure occurs while the air conditioner is operating,
the unit will be switched off. When the power returns, the air
conditioner starts up again automatically.
Power failure
When you use the heat pump model, it is impossible to
operate HEAT and COOL mode of several indoor units at the
same time.
The
simultaneous
operation
AVMCH052CA1 IB_E_14089 2005.12.29 2:48 PM Page 10