SiBE121123_A Control Specification
Function and Control 100
4.11 Outdoor Electronic Expansion Valve Control
Outline The following items are included in the outdoor electronic expansion valve control.
Outdoor electronic expansion valve is fully closed
1. Outdoor electronic expansion valve is fully closed when turning on the power.
2. Pressure equalizing control
Room Distribution Control
1. SC (subcooling) control
2. Heat exchanger isothermal control during heating
3. Liquid pipe isothermal control during heating
4. Gas pipe isothermal control during cooling
Open Control
1. Outdoor electronic expansion valve control when starting operation
2. Outdoor electronic expansion valve control when the frequency changes
3. Outdoor electronic expansion valve control for defrosting
4. Outdoor electronic expansion valve control for oil recovery
5. Outdoor electronic expansion valve control when a discharge pipe temperature is
abnormally high
6. Outdoor electronic expansion valve control when the discharge pipe thermistor is
disconnected
7. Outdoor electronic expansion valve control for anti-icing control for indoor unit
Feedback Control
1. Target discharge pipe temperature control
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