Product Features
Page 31
1.6.3 Outdoor Fan Control
For on-off models, outdoor units just have one single fan
speed. The operation of outdoor fan is consistent with the
operation of compressor, except the following situations.
• High temperature protection of evaporator
• Defrosting
• Current protection
1.6.4 Defrosting mode
• The unit enters defrosting mode according to the
temperature difference between T2 and T1, as well as
the compressor runtime.
• In defrosting mode, the compressor continues to run,
the indoor and outdoor motor will cease operation,
the defrost light of the indoor unit will turn on, and
the “ ” symbol is displayed.
• If any one of the following conditions is satisfied,
defrosting ends and the machine switches to normal
heating mode:
• Compressor current is over than I
defrost
and lasts for
7s
• The defrosting time has reached the setting value.
• T2≥2°C(3.6°F) after entering defrosting mode for 3
minutes.
• After entering defrosting mode for 2 minutes,
check the value of T2. The minimum temperature
of T2 is marked as T2min. If T2-T2min≥2°C(3.6°F)
during the following 4 minutes, AC will exit
defrosting mode(if T2≤-15°C(5°F),considers it as
-15°C(5°F)).
1.6.5 Evaporator Temperature Protection
When the evaporator temperature exceeds a preset
protection value, the compressor stops.
1.7 Auto-mode
• This mode can be selected with the remote controller.
• In auto mode, the machine selects cooling, heating, or
fan-only mode on the basis of ∆T (∆T =T1-Ts).
∆T Running mode
∆T>2℃ Cooling
-3℃≤∆T≤2℃ Fan-only
∆T<-3℃ Heating*
Heating*: In auto mode, cooling only models run the fan
• AC will run in auto mode in the below cases:
• Pressing the forced auto button.
• If AC is off, it will run in auto mode when the timer
on function is active.
• After setting the mode, AC will run in auto mode if
the compressor keeps not running for certain time.
1.8 Drying mode
• The compressor is cycled running with 10 minutes
on and then 5 minutes off. The indoor fan will keep
running at low speed.
• In drying mode, if room temperature is lower than
10°C, the compressor will stop and not resume until
room temperature exceeds 13°C.
• The evaporator anti-freezing protection is the same as
that in cooling mode.
1.9 Forced operation function
• Forced cooling mode:
The compressor and outdoor fan continue to run and
the indoor fan runs at low speed. After running for 30
minutes, the AC will switch to auto mode with a preset
temperature of 24°C.
• Forced auto mode:
Forced auto mode operates the same as normal auto mode
with a preset temperature of 24°C.
• The unit exits forced operation when it receives the
following signals:
• Switch on
• Switch off
• Timer on
• Timer off
• Changes in:
• mode
• fan speed
• sleeping mode
1.10 Auto-Restart function
• The indoor unit has an auto-restart module that
allows the unit to restart automatically. The module
automatically stores the current settings (not including
the swing setting) and, in the case of a sudden power
failure, will restore those setting automatically within 3
minutes after power returns.
• If the unit was in forced cooling mode, it will run in
this mode for 30 minutes and turn to auto mode with
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