Fintek iCOOL - Page 24

3. At the beginning of sleeping running in Heating mode, if room temperature ˘ setting temperature, the
compre
ssor, outdoor fan motor, indoor fan motor and four-way valve will work. If room temperature
setting temperature, it will directly go into sleeping working fluctuation (see below graphic). Fan speed
will be fixed with low speed. Flap direction can be adjusted or stay with one position.
Note: When setting Timer and Sleeping function same time, unit will work with Timer function.
9.3.7 PTC electrical heater function (Used for iWARM)
1N t PTC l ti lh t f ti
1
.
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o au
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o
PTC
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2.
Manual PTC electrical heater function
PTC would work under the following conditions:
a. The
unit is working in heating mode
b. Room
temperature RT26 ć
When RT  Ts+1 ć , PTC would be on after 1 second delay.
When RT˚Ts +3 ć , PTC would be off.
3.
Remarks:
W
hen indoor coil temperature  55 ć, electrical heater would be off. When indoor coil temperature 48ć,
the heater would work again.