Operating Instructions and Installation
11-3Samsung Electronics
■ EEV(Electronics Expansion Valve) : Optimized refrigerant control
EEV distributes the optimized refrigerant to each
indoor units with the least energy generated from the
Digital Scroll compressor loading/unloading function.
The indoor units senses not only the temperature
difference between inlet and outlet of evaporator but
also the superheat and room temperature profiles and
finally determines the refrigerant flow rates directly
linked with EEV steps.
1
0.5
0
-0.5
-1
❶ Falling room temperature
❷ Rising room temperature
❸ Open electronic expansion valve
❹ Closed electronic expansion valve
■ Fast Cooling
EEV distributes the optimized refrigerant to each
indoor units with the least energy generated from the
Digital Scroll compressor loading/unloading function.
The indoor units senses not only the temperature
difference between inlet and outlet of evaporator but
also the superheat and room temperature profiles and
finally determines the refrigerant flow rates directly
linked with EEV steps.
■ Unloaded power consumption is 10% of full load power in 6.0HP compressor
The graph shows that the unloaded power
consumption is 10% of full load power in case of
6 seconds loaded and 6 seconds unloaded.
In each cycle of modulation, the discharge pressure
builds up during the cycle is being loaded, then the
discharge pressure decreases during the cycle is
being unloaded. Similarly, the suction pressure
decreases during the cycle is being loaded and it
increases during the cycle is being unloaded.
The transition time means the time to build up the
pressure and it is a fraction of a second. The average
value is around 0.4 second. During transition time,
the compressor capacity is much less and this causes
the average compressor capacity to be less than the
modulation percentage. Literally, a shorter transition
time gives better capacity from the compressor.
Loaded Power 5,300W
Unloaded Power 500W
0 2 4 6 8 10 12 14 16 18 20
Time(Sec)
Samsung mini-DVM
Samsung’s other energy-saving air conditioner
Samsung energy-saving A’s air conditioner
Room Temperature(°C)
100
90
80
70
60
50
40
30
20
10
0
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❹
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