DC Inverter Side Discharge VRF Ⅱ for North America
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1.2.2 Operation Flow Chart of Outdoor Unit
1) Cooling operation
2) Heating operation
1.3 Unit Control Functions
1.3.1Control functions of outdoor unit
1) Include the following contents.
2) Compressor capacity output.
3) Compressor start-up control.
4) Outdoor fan control.
5) Defrosting control.
6) Heating EXV control.
7) Subcooling valve control.
8) Refrigerant lacking control.
1.3.2Control functions of indoor unit
1) Include the following contents
2) Cool