13
7.2.3
７．２．３．１
７．２．３．２
HEAT Mode
When Tamb
≤
Tset-1
℃
enter into HEAT mode, reversing valve, compressor, outdoor fan motor start to work.
indoor fan motor runs at setting fan speed and anti-cool wind.
When Tamb
≥
Tset +1
℃
,compressor, outdoor fan motor stop running, reversing valve is powered on, indoor
fan motor runs at low speed and after blowing for 10s later, it will stop.
When Tset-1
℃＜
Tamb
＜
Tset+1
℃，
it will keep the original status.
In HEAT mode, the temp. setting range is 16
℃～
30
℃
.
In HEAT mode, the unit is turned off or swtich to othermode, after compressor stopped for 2min, the 4-way valve
is powered off.
Conditions for anti-cool wind
When compressor start to run in HEAT mode, the indoor fan motor does not run, 3min later
the indoor fan motor runs at the setting fan speed.
Conditions for defrosting
When unit keeps running 44min in heat mode, and 1min continuously had detected Tcondenser
≤
-5
℃，
the defrosting started, the reversal valve, indoor and outdoor fan will stop running.
When the defrosting started running for 10min or Tcondenser
≥
1
0
℃
,
defrosting will stop running, the
reversal valve, outdoor fan will run at the same time, the indoor fan motor will run in anti-cool mode.
