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CORRECTION FACTORS
The correction factor shown below is calculated in the LATS software programs.
Elevation Correction Factors
For each water source unit, calculate the equivalent length of the liquid line from the water source unit to the farthest indoor unit. Determine
the elevation difference of farthest indoor unit above or below the water source unit. Find corresponding cooling capacity correction factor in
the table below. Multiply the cooling correction factor by the standard cooling capacity. The resultant is the NET cooling capacity. Repeat for
NET heating capacity.
The correction factors shown below are calculated in the LATS software program. These factors are only to be used when performing manual calcula-
tions.
Table 20: ARWN053GA2—Cooling Correction Factors.
Elevation Differences (feet)
Indoor Units Above Water Source Unit (feet)
0
25
33
66
98
Water Source Unit Above Indoor Units (feet)
0
25
33
66
98
ELF = Equivalent Pipe Length in Feet—Sum of the actual pipe length plus allocations for pressure drop through elbows, valves, and other fittings in equivalent length.
1
Heating Correction Factor for ARWN053GA2 models is 1.0 for all equivalent lengths and elevation differences.
36 | PERFORMANCE DATA
25
33
66
1
0.99
0.96
1
0.99
0.96
-
0.99
0.96
-
-
0.96
-
-
-
1
0.99
0.96
1
0.99
0.96
-
0.99
0.96
-
-
0.96
-
-
-
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.
Equivalent Pipe Length (ELF)*
98
131
0.93
0.91
0.93
0.91
0.93
0.91
0.93
0.91
0.93
0.91
0.93
0.91
0.93
0.91
0.93
0.91
0.93
0.91
0.93
0.91
164
197
>230
0.90
0.87
0.85
0.90
0.87
0.85
0.90
0.87
0.85
0.90
0.87
0.85
0.90
0.87
0.85
0.90
0.90
0.85
0.90
0.90
0.85
0.90
0.90
0.85
0.90
0.90
0.85
0.90
0.90
0.85
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