Trane TWA180E User Manual

October 2009
SS-APG008-EN
Tube Size and Component
Selection
for TTA and TWA Split Systems (6-20 Tons)
Using Refrigerant 410A
Model Numbers:
TTA073D TTA090D TTA120D
TTA120E TTA120F TTA150E
TTA180E TTA180F TTA240E
TTA240F TWA073D TWA120D
TWA180E TWA240E TWA090
Application Guide

Trane TWA180E Specifications

General

Model Number	TWA180E
Category	Heat Pump
Cooling Capacity	180, 000 BTU/h
Heating Capacity	180, 000 BTU/h
Refrigerant	R-410A
Voltage	208/230V
Phase	3
Compressor Type	Scroll

Summary

Warnings, Cautions, and Notices

Personal Protective Equipment (PPE) Required!

Details requirements for safety gear during installation and servicing of units.

Updated Guidelines

Liquid Lines

Discusses historical and current practices for sizing and routing liquid lines.

Suction Lines

Covers R-410A refrigerant and its impact on suction line sizing and oil entrainment.

Line Sizing, Routing, and Component Selection

Liquid Lines

Provides guidelines for selecting, routing, and insulating liquid refrigerant lines.

Expansion Valve

Discusses the function, selection, and adjustment of expansion valves.

Gas Line

Covers line sizing, routing, and insulation requirements for gas lines.

Expansion Valves

Remodel, Retrofit, or Replacement

Refrigerant Piping Examples

Parts