Samsung Electronics 254
Piping Diagram
Energy control operation (ECO)
ƒ Purpose
Energy saving mode: Save energy by optimizing the operation load according to the indoor and outdoor temperatures.
Power mode: Quickly c
ool down the room by increasing the initial cooling speed.
ƒ Concept
- Energy saving mode : The operation capacity is controlled based on the difference between the in
door temperature and
the set temperature for indoor units.
- Power mode: The initial target low pressure is lowered to increase the cool
ing speed in cooling mode.
ƒ 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 pre
ssure if the maximum difference between the
indoor unit and set temperature among active heating indoor units is 2 K or lower.
(see “Com
pressor capacity control” for details on controlling the compressor frequency).
Temperature, pressure Temperature, pressure
Current indoor temperature
Set temperature + 3 K
Set temperature
Current indoor temperature
Set temperature
Set temperature
- 2 K
Target high pressure
Target evaporation temperature
(when the outdoor temperature is low)
Target evaporation temperature
(wh
en the outdoor temperature is high)
ECO for cooling
ECO for heating
7-3 Functions (cont.)
7-3-3-1 Field Setting (cont.)
7-3-3 Others (cont.)
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