System Engineering
56
|
SYSTEM ENGINEERING
Due to our policy of continuous product innovation, some specifications may change without notification.
© LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG” is a registered trademark of LG Corp.
Table 19: Outdoor Unit Cooling Capacity Correction Factor - Indoor Units above Outdoor Unit
Equivalent Pipe Length in Feet (ELF)*
Elevation Differences (ft)
25 33 66 98 131 164 197 230 263 295 328 ≥ 361
0 1.00 0.99 0.97 0.95 0.93 0.91 0.88 0.87 0.85 0.83 0.83 0.82
25 1.00 0.99 0.97 0.95 0.93 0.91 0.88 0.87 0.85 0.83 0.83 0.82
33 0.99 0.97 0.95 0.93 0.91 0.88 0.86 0.85 0.83 0.82 0.82
66 0.96 0.95 0.93 0.9 0.88 0.86 0.85 0.83 0.82 0.82
98 0.94 0.92 0.9 0.88 0.86 0.84 0.83 0.82 0.82
131 0.92 0.9 0.88 0.86 0.84 0.83 0.82 0.82
164 0.9 0.88 0.86 0.84 0.83 0.82 0.82
Entering DB (ºF) 19.4 23.0 26.6 32.0 37.4 41.0 44.6
De-rate Factor
0.98 0.95 0.93 0.86 0.93 0.96 1.0
At 85% outdoor air relative humidity.
The frost accumulation factor does not account for effects of snow accumulation restricting airfl ow through the outdoor unit coil.
Table 20: Outdoor Unit Cooling Correction Factor - Outdoor Unit above Indoor Units
Equivalent Pipe Length in Feet (ELF)*
Elevation Differences (ft)
25 33 66 98 131 164 197 230 263 295 328 ≥ 361
0
1.00 0.99 0.97 0.95 0.93 0.91 0.9 0.87 0.88 0.84 0.86 0.84
25 1.00 0.99 0.97 0.95 0.93 0.91 0.9 0.87 0.88 0.84 0.86 0.84
33 0.99 0.98 0.95 0.93 0.91 0.9 0.88 0.88 0.84 0.86 0.84
66 0.98 0.95 0.93 0.91 0.9 0.88 0.88 0.84 0.86 0.84
98 0.96 0.93 0.91 0.9 0.88 0.89 0.84 0.86 0.84
131 0.93 0.91 0.9 0.88 0.89 0.84 0.86 0.84
* ELF = Equivalent Pipe Length in Feet—Sum of the actual pipe length plus allocations for pressure drop through elbows, valves, and other fi ttings in equivalent length.
* ELF = Equivalent Pipe Length in Feet—Sum of the actual pipe length plus allocations for pressure drop through elbows, valves, and other fi ttings in equivalent length.
EQUIPMENT SELECTION PROCEDURE
ARUN 036, 047, 053
Table 21: Outdoor Unit Frost Accumulation Factor (Heating)
To Next Page
Loading...
Need help?
General