Long Line Sizing - LG 100K Installation Manual

INSTALLATION OF UNIT
14

Long Line Sizing

The following considerations have already been accounted for when relating to the selection
charts.
- R-22 Maximum Pressure Drop is 35 psig
- R-410A Maximum Pressure Drop is 60 Psig
- Increased charge levels
- Maximum recommended velocity of 400 fpm
- Maximum velocity of 4100 fpm
Long line selection Chart:
The charts below the line sizes that can be selected for each tonnage of unit and the maximum
equivalent length and maximum rise of the line. The maximum actual line length is 200 feet.
Equivalent line length would include elbows and other components that would increase the
equivalent length.
R-22 Liquid line, maximum rise chart
* Shaded area indicates system needs oil
added (See oil addition section)
R-410A Liquid line, maximum rise chart
Unit : fr.
Note: Exceeds recommended maximum ve-
locity of 400 fpm, consider noise
when selection this pipe size.
Unit : fr.