Quick Reference Guide

7 UH-TS-1
A Complete Line of Gas Heating Products
Indirect Fired
Single Rooftop Gas Duct Furnace
Arrangement A
Model GFAA/GFBA/GFCA/GFDA
Trane rooftop duct furnaces combine
all the features of indoor units with
rail mounting and watertight
construction. Side access burner
drawer and intermittent pilot ignition
are standard. Gravity venting is
standard; optional power venting is
available. Available in double or triple
furnace sizes. For outdoor use only.
Approved in blow-thru applications
only.
Single Rooftop Gas Duct Furnace - Arrangement A
GFAA/GFBA/GFCA/GFDA 10152025303540
Input MBh 100.0 150.0 200.0 250.0 300.0 350.0 400.0
Output MBh 80.0 120.0 160.0 200.0 240.0 280.0 320.0
Max CFM 3704 5556 7407 9259 11111 12963 14815
Pressure Drop 1.10 1.00 1.05 1.08 1.10 1.11 1.12
Min. Temperature Rise 20 20 20 20 20 20 20
Min. CFM 1235 1852 2469 3086 3704 4321 4938
Pressure Drop 0.15 0.15 0.15 0.15 0.15 0.15 0.15
Max. Temperature Rise F 60606060606060
1. Also available in double (500-800 MBh) and triple (1200 MBh) furnace sizes.
2. Above single furnace models also available in a 60-90° temperature rise.