Samsung AM072BXV Series Service Manual page 285

Piping Diagram
7-3 Functions (cont.)
7-3-3 Others (cont.)
7-3-3-1 Field Setting (cont.)
Energy control operation (ECO)
▪ Purpose
Energy saving mode: Save energy by optimizing the operation load according to the indoor and outdoor temperatures.
Power mode: Quickly cool down the room by increasing the initial cooling speed.
▪ Concept
- Energy saving mode : The operation capacity is controlled based on the difference between the indoor temperature and
the set temperature for indoor units.
- Power mode: The initial target low pressure is lowered to increase the cooling speed in cooling mode.
▪ Control specifications in detail
- Energy saving mode:
The compressor frequency is lowered by increasing the target evaporation temperature if the maximum difference
between the indoor temperature and set temperature among active cooling indoor units is 3 K or lower.
(see " Compressor capacity control" for details on controlling the compressor frequency).
The compressor frequency is lowered by decreasing the target high pressure if the maximum difference between the
indoor unit and set temperature among active heating indoor units is 2 K or lower.
(see "Compressor capacity control" for details on controlling the compressor frequency).
ECO for cooling
ECO for heating
Samsung Electronics
Current indoor temperature
Set temperature + 3 K
Set temperature
Target evaporation temperature
(when the outdoor temperature is low)
Target evaporation temperature
(when the outdoor temperature is high)
Set temperature
Set temperature - 2 K
Current indoor temperature
Target high pressure
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