Trane 4TTM3018 - Refrigerant Line Considerations; Line and Service Valve Connection Sizes; Required Refrigerant Line Length; Refrigerant Line Insulation

6 18-AC78D1-6
Determine required line length.
LIFT
Section 5. Refrigerant Line Considerations
5.1 Refrigerant Line and Service Valve Connection Sizes
5.2 Required Refrigerant Line Length
Line Sizes Service Valve Connection Sizes
Model
Vapor
Line
Liquid
Line
Vapor Line
Connection
Liquid Line
Connection
4TTM3018A 5/8 3/8 5/8 3/8
4TTM3024A 5/8 3/8 5/8 3/8
4TTM3030A 3/4 3/8 3/4 3/8
4TTM3036A 3/4 3/8 3/4 3/8
4TTM3042A 7/8 3/8 7/8 3/8
4TTM3048A 7/8 3/8 7/8 3/8
4TTM3060A 7/8 3/8 7/8 3/8
Table 5.1
LIFT
Line Length
Or
5.3 Refrigerant Line Insulation
Important: The Vapor Line must always be
insulated. DO NOT allow the Liquid Line and
Vapor Line to come in direct (metal to metal)
contact.
Vapor Line
Liquid Line
Insulation