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If T
-2℃≤T
≤T
set
amb
set
If T
≤T
-2℃, the compressor will stop. The external fan will stop after a delay of 30s, and the indoor
amb
set
fan will run at a low speed.
In this mode, the reversal valve will not be powered on and the temperature setting range is
16 ~30
℃
℃
7.1.2.2.2 Protection function
Anti-freezing protection
Anti-frost protection same as cooling
Over current protection
Over current protection is the same as the cooling mode.
7.1.2.2.3 SWING mode
At this mode, the inner fan will select among high, medium, low and auto modes and the compressor,
outer fan and 4-way fan will stop running.
In this mode, the reversal valve will not be powered on and the temperature setting range is
16 ~30
℃
℃
7.1.2.3 HEAT mode
7.1.2.3.1 Running condition and process of heating mode
If T
≤T
+2 , HEAT mode will act, the compressor, outdoor fan and reversal valve will run at the same
℃
amb
set
time, the indoor fan will run after 3 minutes' delay at the latest.
If T
≥T
+4 , the compressor will stop
℃
amb
set
will keep power-on and the indoor fan will run at a low speed and will stop 30s later.
If T
+2℃＜T
＜T
set
amb
set
In this mode, the temperature setting range is 16 ~30 .
The air conditioner will adjust the running frequency of the compressor automatically according to the
change of ambient temperature.
The 4-way valve will be cut off 2min after the compressor stops operation when heating cut-off, or
heating mode changed to other mode.
7.1.2.3.2 The condition and process of defrosting
When frost is detected in the condenser, the system will enter into defrosting mode. When the defrosting starts,
the compressor and indoor fan stop running. The outdoor fan will stop after a delay of 30s, and the four-way
, the unit will keep on running in the original mode.
T
amb
T
set
T
-2℃
set
Compressor
Outdoor fan
Indoor fan
Run
first and 15s later, the outdoor unit will stop. The reversal valve
+4 ,
℃ the unit will keep running in the previous mode.
T
+5℃
set
T
+2℃
set
Compressor
Outdoor fan
Indoor fan
≤3min Set fan speed
Reversal valve
Low fan speed
Stop
℃
℃
T
amb
≥3min
≤3min Set fan speed
Run
Stop
—29—
Cooling running
Dry running
Stop running
Stop heating
Original running state
Start heating
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