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Section 5. Refrigerant Line Considerations
5.1 Refrigerant Line and Service Valve Connection Sizes
RATED
LINE SIZES
4TTR3018N
4TTR3024N
4TTR3030N
4TTR3036N
4TTR3042N
4TTR3048N
4TTR3060N
4TTR3018H
4TTR3024H
4TTR3030H
4TTR3036H
4TTR3042E
4TTR3043A
4TTR3048E
4TTR3049A
4TTR3060E
Note: For other line lengths, Refer to Refrigerant Piping Application Guide, SS-APG006-EN or Refrigerant Piping
Software Program, 32-3312-xx (latest revision).
6
Line Sizes
Service Valve Connection Sizes
Vapor
Liquid
Vapor Line
Line
Line
Connection
3/4
3/8
3/4
3/4
3/8
3/4
3/4
3/8
3/4
3/4
3/8
3/4
7/8
3/8
7/8
7/8
3/8
7/8
7/8
3/8
7/8
3/4
3/8
3/4
3/4
3/8
3/4
3/4
3/8
3/4
3/4
3/8
3/4
7/8
3/8
7/8
7/8
3/8
7/8
7/8
3/8
7/8
7/8
3/8
7/8
7/8
3/8
7/8
Table 5.1
Liquid Line
Connection
3/8
3/8
3/8
3/8
3/8
3/8
3/8
3/8
3/8
3/8
3/8
3/8
3/8
3/8
3/8
3/8
Max Line & Lift Lengths
TOTAL Max
Max Lift (ft.)
Line Length (ft.)
150
50
150
50
150
50
150
50
150
50
150
50
150
50
150
50
150
50
150
50
150
50
150
50
150
50
150
50
150
50
150
50
18-AC79D1-10D-EN
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