Airwell YFF045, Руководство по обслуживанию

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CONTROL SYSTEM
11-1 SM FSF045 1-A.0 GB
11. CONTROL SYSTEM
11.1 Fan Mode
In this mode, the indoor fan may run at high,medium,low and automatic speed. The compressor,
outdoor fan and 4-way valve will be OFF.
In this mode, the range of setting temperature is 16
o
C~30
o
C.
Auto Fan setting
In AutoFan user setting, fan speed will be adjusted automatically according to the difference between
actual room temperature (RAT) and user set point temperature (SPT).
Indoor Fan speed High Medium Low
RAT-SPT
Cooling >=2 (0,2) <=0
Heating <=0 (1,3] >3
11.2 Cool Mode
When RT.
≥
SPT+1
℃
, the unit will run in cooling mode. Meanwhile, compressor, outdoor fan will start
running, and indoor will run at setting fan speed;
When RT
≦
SPT-1
℃
, the unit is at OFF status in cooling mode. Meanwhile, compressor, outdoor fan
will all stop running, while indoor fan will run at setting fan speed;
When SPT-1
℃
<RT<SPT+1
℃
, the unit will keep previous running status.
In this mode, the temperature setting range is 16
℃
~30
℃
and the initial value is 25
℃
. The indoor fan
will run according to the setting, if AutoFan is set, fan speed will be adjusted automatically according
to the SPT and RAT, rerfer to Sec 12.1
11.3 Heat Mode
When RT
≦
SPT-1
℃
, the unit will run in heating mode. Meanwhile, compressor and outdoor fan will
start running. Indoor fan maybe start running after delayed for a period of time to prevent blowing out
cold air. The RV will be ON after compressor was ON for 20s.
When RT
≥
SPT+1
℃
, compressor and outdoor fan will stop running. The RV is ON and indoor fan will
stop running after running at low fan speed for 10s.
When SPT-1
℃
<RT<SPT+1
℃
, the unit will keep original running status.
In this mode, the SPT range is 16
℃
~30
℃
and the initial value is 25
℃
. When tuning off the unit
in heating mode or switching to other modes from heating mode, the RV will be OFF after 2mins
delayed.
Residual heat blowing function
During heating, when the stopping condition for the compressor is reached, the compressor and the
outdoor fan motor stop running. The indoor fan will stop after running for 10s at low speed
11.4 Auto Cool/Heat Mode
In AUTO mode, the system selects the running mode (COOL/HEAT/FAN) automatically according to
the room temperature. The display shows the actual running mode and setting temperature. There
will be 30s delay for mode conversion.
1. When RAT
≥ 26 degree, the cooling mode is selected.
2. When RAT ≤ 20 degree, the unit runs in heating mode
3. When 20 degree <RAT< 26 degree, upon initial startup, the unit will enter auto mode and run
in automatic fan mode. If the other mode changes into auto mode, the previous running mode will
remain.