CONTROL
SYSTEM
11-4
SM HGD-009/012 1-A.1 GB
11.1.4.1 Turbo Speed
In COOL and HEAT mode (not available in AUTO, DRY, FAN mode), press the Turbo button, the
super high fan speed is selected on Remote control and the indoor fan rotates at super high speed.
11.1.5
Outdoor Fan Control
11.1.5.1 OFAN Speed Type
The outdoor fan motor is a 2-speed DC motor.
Unit
Model
Mode High Low
Cooling 900 600
09
Heating 900 600
Cooling 900 600
12
Heating 900 600
11.1.5.2 General rules
1. The outdoor fan is ON when compressor ON during cooling, dring and heating mode.
2. Outdoor fan OFF will delay 30sec when compressor is OFF during cooling and heating mode.
3. In normal operating, the OFAN speed depends on actual compressor frequency.
4. Outdoor fan control under outdoor deicing please refer to 11.12.6
11.1.6 Refrigerant
control
Electrical expansion valve is used in model 09 and capiliary is usued in model 12
11.1.7
Reversing Valve (RV) Control
Reversing valve is on in heat mode.
Switching of RV state is done only after compressor is off for over 2 minutes.
11.2
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 16~30
o
C
11.3
Cool Mode
If RAT
≥
SPT, the unit starts cooling operation. In this case, the compressor and outdoor fan will
operate and the indoor fan will run at the setting speed.
If RAT
≤
SPT-2, the compressor will stop operation and the outdoor fan will delay 30 seconds to stop.
While the indoor fan will run at the setting speed.
If SPT-2
＜
RAT
＜
SPT, the unit will maintain the previous status.
