HOW SPLIT AIR CONDITIONERS WORK
COOLING MODE
The compressor (6) in the external unit compresses the refrigerant into a high-temperature, high-
pressure gas. When this gas flows along the cooling fins of the condenser (7), heat is exuded and
the gas condenses into a liquid, which is then led to the evaporator (1) in the indoor unit. The liquid
expands into a gas at a low temperature and low pressure. This gas absorbs the warmth of the air
in the room, and a fan (3) draws the air through the filter and over the evaporator (1), blowing the
cooled air back into the room. The heat is moved to the compressor along with the gas. A fan (8)
draws air over the condenser and blows the warm air away.
HEAT PUMP MODE
The system operates in reverse: the condenser works as an evaporator, the evaporator as
a condenser: warm air is blown into the room. It is ideal as a maintenance heating when
outside temperature is not too low and when the indoor temperature is more than 7°C.
DEHUMIDIFYING
As with cooling, the moisture in the air condenses on the cold evaporator at room
temperature acting as a powerful dehumidifier.
NOTE:
This is a multisplit system and multiple indoor units are connected to a single outdoor compressor.
Please make sure that the indoor units are set to operate in the same mode. Multiple indoor units
connected to the same compressor cannot operate in different modes at the same time although
you are able to set different target room temperatures for each unit. Fan only mode can be
operated while other units are in heating or cooling.
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