Section 5. Refrigerant Line Considerations - Trane 4TTR7 Series Installer's Manual

Section 5. Refrigerant Line Considerations

5.1 Refrigerant Line and Service Valve Connection Sizes
RATED
LINE SIZES
4TTR7024A
4TTR7036A
4TTR7048A
4TTR7060A
ALTERNATE
LINE SIZES
4TTR7024A
4TTR7036A
4TTR7048A
4TTR7060A
Note: For other line lengths, Refer to Refrigerant Piping Application Guide, SS-APG006-EN or Refrigerant Piping
Software Program, 32-3312-xx (latest revision).
5.2 Factory Charge
The outdoor condensing units are factory charged with the system charge required for the outdoor condensing
unit, ten (10) feet of tested connecting line, and the smallest rated indoor evaporative coil match. Always verify
proper system charge via subcooling (TXV/EEV) or superheat (fixed orifice) per the unit nameplate.
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
7/8 3/8 7/8
1-1/8
3/8 7/8
Line Sizes Service Valve Connection Sizes
Vapor Liquid Vapor Line
Line Line Connection
3/4
3/8 3/4
5/8
3/8 3/4
7/8 3/8 3/4
3/4
3/8 7/8
3/4
3/8 7/8
7/8 3/8 7/8
Table 5.1
Liquid Line
Connection
3/8
3/8
3/8
3/8
Liquid Line
Connection
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
Max Line & Lift Lengths
TOTAL Max
Max Lift (ft.)
Line Length (ft.)
150 50
150 50
150 50
150 50
150 50
150 50
18-AC94D1-4C-EN