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8.3.2. Odour cut control
• When cool or dry mode operation start, select odour cut mode or fan auto mode, by remote control, operation start at odour wash
mode when compressor start or shift to thermostat on from thermostat off.
• Odour cut operation is under below condition.
• Odour cut operation is to remove the odour generated at indoor heat exchanger to use the drain water come out from indoor heat
exchanger.
8.3.3. Cool powerful operation
• When cool or dry mode operation start, temperature differences between room temperature and setting temperature is more
than 5 K, setting temperature shift to 2 K down.
• (But when temperature after shifting is less than 16°C, setting temperature is 16C = no change)
• Micro computer judge that required indoor load is bigger than calculation base from temperature differences between room
temperature and setting temperature, then increase the compressor frequency compared to normal to cool down indoor side
immediately.
• Those kind of operation complete after 30 minutes when cool mode operation start.
8.3.4. Freezing prevention control
• During cool or dry mode operation, if indoor evaporator temperature is going down, freezing prevention control is operated.
• Detail of Freezing prevention control is as follows;
Indoor evaporator temperature area is divided into 5 zones, which consist of stop zone, down zone, no change zone, up zone,
and recovery zone. When indoor evaporator temperature is going into each zone, compressor frequency change by following the
below table.
Operation mode Cool or dry mode
Odour washing Setting No setting
Fan setting Auto Odour cut Odour cut
Manual Odour cut -
Thermo & comp ON/OFF Thermostat ON & comp ON Thermostat OFF Thermostat ON & comp ON
Time 40 [Sec] 50 [Sec] - 20 [Sec] 120 [Sec] 20 [Sec] 40 [Sec] 50 [Sec] -
Cool OFF Lo Hi Lo OFF Lo OFF Lo Me
Dry OFF Lo Lo Lo OFF Lo OFF Lo Lo
Recovery zone Release freezing prevention operation
Up zone Fan motor speed step up
No change zone Operation no change
Down zone Reduce the compressor frequency
(check for 3 min, max 3 times)
Stop zone If continue for 6 min, compressor stop
(for 3 min after stop, compressor can be started due to restart delay control)
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