8.5 Defrosting mode
8.5.1 Conditions of defrost:
Defrosting starts when either of the following :
T3 lower than 0°c, lasts for more than 40 minutes, provided that the time period when the
temperature is lower than -3°c consecutively reaches 3 minutes.
Calculate from the end of latest defrost, evaporator high temp. protection only closes outdoor fan
with the compressor still running. Add up to 90 minutes
.
8.5.2 Conditions of defrost ending:
Defrosting ends when either of the following :
The time gets to 10 minutes;
T3>20°c
8.5.3 Time sequence of the whole defrosting procedure is as follows:
Remark: when the evaporator pipe sensor temp. more than TE16, The indoor fan start to run.
Defrost 10or 6minutes
55S 55S
Compressor
4-way Valve 50S
50S
Outdoor Fan
Indoor Fan
15S
8.6 Auto mode
8.6.1 When running in automatic mode, the air conditioner automatically selects one of the following
operation modes: cooling, heating or ventilation according to the difference between room temp.
(TA) and set temp. (TS).
TA—TS Operation mode
TA—TS>2℃ Cooling
-1 ≤TA℃ —TS≤+2℃ Air-only
TA—TS<-1℃ Heating (air-only for cooling only type)
8.6.2 At auto mode, the indoor fan blows automatically in selected mode.
8.6.3 One mode should be carried out for at least 15 minutes once selected. If the compressor cannot
start for 15 minutes, reselect the operation mode according to the room temp. and set temp., or
reselect when the setting temp. changed
8.7 Economic mode
Cooling: The set temperature rise 1 per hour. Two hours later, the set temperatur℃ e will maintain
as a constant and the air circulation is kept at low speed.
Heating: The set temperature decrease 1 per hour. Two hours later, the set temperature will ℃
maintain as a constant and the air circulation is kept at low speed (Cold air proof function takes
priority over all).
8.8 Manual operation
Manual operation is controlled by touching buttons and divided into force cooling and forced auto
mode. It transfers between these two modes by pressing the buttons, the cycling order of the
button press is:
42
Remote mode Forced auto Forced cooling
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