Trane 4TTR4042N - Refrigerant Line Considerations

4 18-AC51D1-10F-EN
Section 3. Unit Preparation
3.1 Prepare The Unit For Installation
STEP 1 - Check for damage and report promptly to the carrier any damage found to the unit.
STEP 2 - To remove the unit from the pallet, remove tabs by cutting with a sharp tool.
2.4 Coastal Considerations
If installed within one mile of salt water, including seacoasts and inland waterways, models without factory
supplied Seacoast Salt Shields require the addition of BAYSEAC001 (Seacoast Kit) at installation time.
Section 4. Setting the Unit
4.1 Pad Installation
When installing the unit on a support pad, such as a concrete slab, consider the following:
• The pad should be at least 1” larger than the unit on all sides.
• The pad must be separate from any structure.
• The pad must be level.
• The pad should be high enough above grade to allow for drainage.
• The pad location must comply with National, State, and Local codes.
Section 5. Refrigerant Line Considerations
5.1 Refrigerant Line and Service Valve Connection Sizes
Table 5.1
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.
See table for line length adders.
TUBING INFORMATION
LINE TYPE
REFRIGERANT TO ADD AT SPECIFIED
ADDITIONAL LENGTH
Suction
Line
Liquid
Line
20 ft 30 ft 40 ft 50 ft 60 ft
3/4" 3/8" 3 oz 9 oz 15 oz 21 oz 27 oz
7/8" 3/8" 3 oz 9 oz 16 oz 22 oz 28 oz
1-1/8" 3/8" 3 oz 9 oz 17 oz 23 oz 29 oz
Line Sizes Service Valve Connection Sizes
Model
Vapor
Line
Liquid
Line
Vapor Line
Connection
Liquid Line
Connection
4TTR4018N 3/4 3/8 3/4 3/8
4TTR4019N 3/4 3/8 3/4 3/8
4TTR4024N
3/4 3/8 3/4 3/8
4TTR4025N
3/4 3/8 3/4 3/8
4TTR4030N
3/4 3/8 3/4 3/8
4TTR4036N
3/4 3/8 3/4 3/8
4TTR4042N
7/8 3/8 3/4 3/8
4TTR4048N 7/8 3/8 7/8 3/8
4TTR4049N 7/8 3/8 7/8 3/8
4TTR4060N 1-1/8 3/8 7/8 3/8