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Operating Instructions and Installation
11-17
Samsung Electronics
5. Energy Saving
Main operating range of commercial A/C is 50%~75% which affects the total system efficiency.
• In case of U.S.A., DOE(Department of Energy) investigated operating range of chillers in 29 cities during 25 Years. Based on
this data, weighting of part load point in efficiency calculation for chillers are established.
•
Weighting of part load point(1998 ASHRAE Standard. AIR 550/590)
1998 Standard
1992 Standard
0%
% Load
100%
75%
50%
20%
20%
50%
75%
1%
17%
42%
39%
45%
33%
12%
11%
100%
Weighting of
75%~50%
part load becomes
increased.
Содержание mini DVM Series
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