Section 10. Refrigerant Line - Trane TAM4A0A18S11ED Installer's Manual

Section 10. Refrigerant Line

10.1 Refrigerant Line Connection Sizes
TAM4A0A18S11ED, TAM4A0A18S11SD
TAM4A0A24S21ED, TAM4A0A24S21SD
TAM4A0A30S21ED, TAM4A0A30S21SD
TAM4A0A36S31ED, TAM4A0A36S31SD
TAM4A0B42S31ED, TAM4A0B42S31SD
TAM4A0C48S41ED, TAM4A0C48S41SD
TAM4A0C60S51ED, TAM4A0C60S51SD
Note: All AHRI listed systems which are inclusive of the above fan coil units were tested with 25
feet of tubing. The rated tubing diameters are listed in the above tables. However, if refrigeration
lines exceed 60 feet, and / or if alternate size existing refrigeration lines are present at the job
site, please consult SS-APG006-EN or 32-3312-** ( latest version).
10.2 Refrigerant System Layout
Gas Temperature
Sensor (GT)
- located on copper
section of manifold
(black wires)
Evaporator Temperature
Sensor (ET)
- located on 3/8" Aluminum
distributor tube
(orange wires)
Note: Some future models
may not have external check
valve.
Table 10.1
Refrigerant Line Set and Connection Sizes
Model
Vapor Line
Vapor Line
Connection
3/4
3/4
3/4
3/4
7/8
7/8
7/8
Check Valve
Liquid Line
EEV Stepper Motor
Liquid Line
Connection
3/8
3/8
3/8
3/8
3/8
3/8
3/8
Strainer
21