Operation Tips - Daitsu DS-18UIAK Notice D'utilisation

Operation Tips

Cooling Operation
Principle:
Air conditioners absorb heat in the room and transmit it to the outdoor unit so that the room tempe-
rature is decreased. The cooling capacity will increase or decrease according to outdoor ambient
temperature.
Freeze Protection:
If the unit is operating in COOL mode and in low ambient temperature, frost may form on the heat
exchanger. When indoor heat exchanger temperature decreases below zero, compressor will stop
operation to protect the unit.
Heating Operation
Principle:
Air conditioners absorb heat from outdoors and transmit it to the indoor unit, increasing room tempe-
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rature. The heating capacity will decrease at low ambient temperature.
Defrosting:
When outdoor temperature is low but humidity is high, frost may form on the outdoor unit during
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extended operation, affecting heating efficiency. The air conditioner may stop operation during auto
defrosting operation.
During auto defrosting, the fan motors of indoor unit and outdoor unit will stop.
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During defrosting, the indoor indicator flashes and the outdoor unit may emit vapor.
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This is not malfunction.
After defrosting is finished, the heating operation will recover automatically.
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Anti-cold Air Function:
In HEAT mode, the indoor fan will not operate in order to prevent cold air blowing out (within 2 minutes) if
indoor heat exchanger doesn't reach a certain temperature under the following three states:
1. Heating operation starts; 2. After Auto Defrosting is finished; 3. Heating at low temperature.
Rest Heat Blow
In the following situations, the indoor unit may still run for some time, to blow out the rest
heat of the indoor unit.
1. In HEAT mode, the temperature reaches the setting value, the compressor stops and the indoor fan
still run for 60s.
2. In HEAT mode, if you turn off the unit, the compressor stops and the indoor fan still run for 10s.
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