Data Aire DAPA-2.5 - Refrigerant Line Sizing Tables; 2.17 Recommended Line Sizing

21
Hot Gas Lines
Table 2 Hot Gas Lines (Inches OD)
Unit
Tonnage
Equivalent Feet (Meters)
50 (15.2)
100 (30.5)
150 (45.7)
200 (61.0)
Horizontal &
Vertical Down
Vertical
Up
Horizontal &
Vertical Down
Vertical
Up
Horizontal &
Vertical Down
Vertical
Up
Horizontal &
Vertical Down
Vertical
Up
2.5
5/8
5/8
5/8
5/8
5/8
5/8
7/8
5/8
3
5/8
5/8
5/8
5/8
7/8
5/8
7/8
5/8
4
7/8
5/8
7/8
5/8
7/8
5/8
7/8
5/8
5
7/8
7/8
7/8
7/8
7/8
7/8
7/8
7/8
Liquid Lines
Table 3 Liquid Lines (Inches OD))
Unit
Tonnage
Equivalent Feet (Meters)
50 (15.2)
100 (30.5)
150 (45.7)
200 (61.0)
2.5
3/8
1/2
1/2
1/2
3
1/2
1/2
5/8
5/8
4
1/2
1/2
5/8
5/8
5
1/2
5/8
5/8
5/8
Suction Lines
Table 4 Suction Lines (Inches OD)
Unit
Tonnage
Equivalent Feet (Meters)
50 (15.2)
100 (30.5)
150 (45.7)
200 (61.0)
Horizontal &
Vertical Down
Vertical
Up
Horizontal &
Vertical Down
Vertical
Up
Horizontal &
Vertical Down
Vertical
Up
Horizontal &
Vertical Down
Vertical
Up
6
7/8
7/8
7/8
7/8
7/8
7/8
7/8
7/8
8
7/8
7/8
7/8
7/8
7/8
7/8
7/8
7/8
10
7/8
7/8
1-1/8
7/8
1-1/8
7/8
1-1/8
7/8
13
7/8
7/8
1-1/8
7/8
1-1/8
7/8
1-1/8
7/8
NOTICE:
1. If equivalent piping length falls between two columns above, choose
the longer equivalent length.
2. If hot gas line refrigerant flow is upward, use “Vertical Up”.
3. If hot gas line refrigerant flow is downward, use “Horizontal & Vertical
Down”.