ActronAir ECOFLEX MINI VRF MTC-071CS Owner's Manual - Page 13

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Owner's Manual

Normal Phenomena that Are Not Air Conditioner Faults

The following phenomena are normal during operation of the air conditioner. They can be solved according to the

instructions below or do not need to be solved.

The Indoor Unit emits

white mist

The Indoor Unit blows

dust

The Indoor Unit emits

odor

Water drips on the air

conditioner surface

The air conditioner makes

low noise

Switching from cooling/

heating (not available for

cooling only units) mode

to fan only mode

In winter, the outdoor

temperature is low, and

heating effects may be

decreased

Mode conflict

No heating or cooling

options

1. In an environment where the indoor relative humidity is too high, when the Indoor Unit

runs in cooling mode, white mist may appear due to the humidity and the temperature

difference between the air inlet and outlet.

2. When the air conditioner is switched to heating mode after defrosting, the Indoor Unit

discharges the moisture generated from defrosting as steam.

When the air conditioner has not been used for a long time or is used for the first time, the

air filter should be cleaned. Otherwise, dust that has entered the Indoor Unit will be blown

out.

The Indoor Unit absorbs the odors of rooms, furniture or cigarettes, etc., and disperses the

odors during operation. It is advised to have the air conditioner cleaned and maintained

regularly by professional technicians.

When the indoor relative humidity is high, it is normal for condensation or slight water

blowing to occur on the surface of the air conditioner.

1. When the air conditioner is in "Auto", "Cool", "Dry", and "Heat" modes, it may emit a

low continuous "hissing" sound, which is caused by the refrigerant flowing between the

Indoor Unit and the Outdoor Unit.

2. A "hissing" sound may be heard for a short time after the air conditioner stops

operation or during "defrosting", which is caused when the refrigerant stops flowing or

changes its flow.

3. When the air conditioner is in Cool mode or Dry mode, a small and continuous rustling

sound can be heard, which is caused by the drain pump.

4. When the air conditioner starts or stops running, you may hear a squeaking sound

which is produced by the expansion or shrinkage of parts or surrounding aesthetic

materials due to temperature change. The sound will disappear when the air

conditioner is running normally.

When the Indoor Unit reaches the set temperature, the air conditioner controller

automatically stops the compressor operation and switches to the fan only mode. When the

room temperature rises (in cooling mode) or falls (in heating mode) to a certain level, the

compressor is restarted and cooling or heating operation is resumed.

1. During the heating operation of the heat pump type air conditioner, the air conditioner

absorbs heat from the outdoor air and releases it to heat the indoor air. This is the heat

pump heating principle of the air conditioner.

2. When the heat pump runs in heating mode, the Outdoor Unit blows out cold air,

causing the outdoor temperature to drop. When the outdoor temperature is extremely

low, the heating capability of the air conditioner drops gradually. You are advised to use

other heating devices for heating.

All Indoor Units in the same air conditioning system can only operate in the same mode, for

example, cooling, heating or others. If Indoor Units are in different modes, a conflict will

occur, making the system unable to start. Make sure that all the Indoor Units operate in the

same mode.

For the same air conditioning system, if Outdoor Unit operates in changeover mode, the

main wired controller allows users to select modes supported by the Indoor Units, while the

wired controller of a non-master Indoor Unit displays the icon of "No heating or cooling

options". In this case, the mode setting is unavailable, and other Indoor Units operate in the

same mode as the master Indoor Unit.

Owner's Manual ECOFLEX MINI VRF R-32 SERIES - 2 WAY CASSETTE

Doc. No.9590-4028-03 Ver. 1 230823

ECOFLEX MINI VRF R-32 SERIES