Introduction To Basic Functions - Daikin FT18HEVLK Operation Manual And Installation Manual

Introduction to basic functions

Basic cooling functions
Air conditioner function:
To bring the ambient temperature to a comfortable level, the air conditioner absorbs heat from
inside the room and discharges it outside.
Anti-freezing function:
If the unit is running in COOL mode and in low temperature, there will be frost formed on the
heat exchanger, when indoor heat exchanger temperature decreased below 0°C, the indoor
unit microcomputer will stop compressor running and protect the unit.
Basic heating functions
Heating function:
* Heat is generated from the outdoor unit is discharged inside to increase the temperature of
the room. The heating effect will decrease in very cold outdoor conditions.
* If outside temperatures become very low, it may be necessary to use additional heating
equipment.
Defrosting:
* When the unit is on for long periods of time and outside temperatures are low with high
humidity, frost will form on the outdoor unit. The auto defrosting function will start, and the
heat will stop for 8-10 minutes.
* During auto defrosting the fan motors will stop.
* During defrosting the indoor indicator light flashes and the outdoor unit will possibly give off
some water vapor. This is not a malfunction.
* After defrosting is complete, heating will start automatically.
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