DC Inverter Cassette Type Air Conditioner Installation and Operation Manual
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7.3 COOL mode operation procedure
According to difference between room temp. and set temp., microcomputer can control cooling on or not.
If room temp. is higher than set temp., compressor runs at COOL mode.
If room temp. is lower than set temp., compressor stops and only indoor fan motor runs.
Set TEMP. should be in range of 16°C to 30°C.