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8.3.5. Dew form prevention control
• During cool or dry operation, if outdoor temperature is less than 30C, and indoor fan speed is low or auto setting, indoor heat
exchanger temperature become lower, dew form prevention control start to prevention dew form at indoor discharge grill.
• Indoor evaporator temperature area is divided into 4 zones, which consist of, down zone, no change zone, up zone, and
recovery zone.
• When indoor evaporator temperature is going into each zone, change compressor frequency by following the below table.
8.3.6. Cooling low temperature protection control
• During cooling, or dry operation, if outdoor temperature is less than -15C.
- And thermostat on condition continue for 15 min, compressor stop.
- After 3 min waiting (restart delay), if thermostat is on, compressor restart.
8.4. Heating mode operation
8.4.1. Heating indoor fan control
• Fan speed [Hi] [Me] [Lo] set by remote controller.
• However, when operation start, or during operation, fan speed control is limited to due to prevent a cold draft, for example, when
heating operation start.
Recovery zone Release dew from prevention operation
No change zone Continue check the indoor heat exchanger temperature
Down zone Reduce the compressor frequency
(check for 3 min, max 3 times)
Fan speed manual
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