Piping Diagram
Samsung Electronics 221
Points of Refrigerant Control (Heating Operation)
Cooling mode is affected by the quantity, capacity, and fan speed of active indoor units. Indoor air temperature and humidity
also affect the mode.
▪ Adjusting the compressor capacity
Adjust the compressor speed to match the condensing pressure to the target pressure. Condensing pressure is measured by
the high pressure sensor on the outdoor unit in order to adjust the heating capacity according to load.
▪ Adjust the outdoor unit EEV to sync the refrigerant superheated degree for the outdoor heat exchanger (formula: compres-
▪ Adjust the indoor unit EEV to sync the refrigerant supercooling degree for the indoor heat exchanger (formula: high pressure
7-3 Functions (cont.)
7-3-1 Basics (cont.)
7-3-1-2 Refrigeration Cycle (cont.)
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