Quick Reference Guide

UH-TS-1 4
A Complete Line of Gas Heating Products
Indirect Fired
Separated Combustion Propeller
Fan Gas Unit Heaters
Model GAND/GAPD
The Trane separated combustion
propeller fan gas unit heaters can
yield higher seasonal efficiencies. A
power venting system draws in a
controlled amount of outdoor air for
combustion and exhausts flue
products from the building. The
burners, pilot and flue system are
totally enclosed within the unit,
effectively isolating the entire
combustion process from the dust,
humidity and chemicals in the
heater’s surrounding environment.
Separated Combustion
Centrifugal Fan Gas Unit Heaters
Model GKND/GKPD
The separated combustion
centrifugal fan gas unit heater
incorporates all the same features as
the separated combustion propeller
unit heater.
In addition, this unit features quiet
operation due to an exceptionally
balanced centrifugal blower
assembly and high static applications
where duct work is required. Duct
discharge flanges may be ordered in
lieu of horizontal louvers to
accommodate duct work.
Separated Combustion Propeller Fan Gas Unit Heater
GAND/GAPD 010 012 015 017 020 022 025 030 035 040
Input MBh 100.0 125.0 150.0 175.0 200.0 225.0 250.0 300.0 350.0 400.0
Output MBh 80.0 100.0 120.0 140.0 160.0 180.0 200.0 240.0 280.0 320.0
Flue Outlet (1) 4’R 4"R 4"R 4’R 5"R 5"R 5"R 6"R 6"R 6"R
Combustion Air Inlet 4’R 4"R 4"R 4’R 5"R 5"R 5"R 6"OV 6"OV 6"OV
CFM 1480 1650 2200 2530 2640 2700 3100 4400 5000 5300
Temperature Rise F 50565051566160505256
Outlet Velocity 775 910 1045 1070 1000 950 980 1100 1150 1050
Nominal Horsepower 1/20 1/10 1/4 1/3 1/3 1/3 1/2 (2) 1/4 (2) 1/3 (2) 1/3
Motor Amps 2.6 2.8 4.0 4.5 4.5 4.5 5.5 8.0 9.0 9.0
Separated Combustion Centrifugal Fan Gas Unit Heater
GKND/GKPD 010 012 015 017 020 022 025 030 035 040
Input MBh 100.0 125.0 150.0 175.0 200.0 225.0 250.0 300.0 350.0 400.0
Output MBh 80.0 100.0 120.0 140.0 160.0 180.0 200.0 240.0 280.0 320.0
Flue Outlet (1) 4’R 4"R 4"R 4’R 5"R 5"R 5"R 6"R 6"R 6"R
Combustion Air Inlet 4’R 4"R 4"R 4’R 5"R 5"R 5"R 6"OV 6"OV 6"OV
CFM 1200 1575 1975 2300 2400 2600 2850 3950 4600 4800
Temperature Rise F 62595656626465565662
Outlet Velocity 880 950 1030 1045 965 935 930 1080 1090 1000
Nominal Horsepower 1/4 1/3 1/2 1/2 3/4 3/4 3/4 3/4 1 1
Motor Amps 5.1 6.6 7.4 7.4 12.0 12.0 12.0 12.0 15.4 15.4
Indoor Gas Duct Furnaces
Model GDND/GDPD
Trane duct furnaces are CSA certified
for installation downstream of
cooling coils in air conditioning
systems. Both LP (propane) and
natural gas units are available with
left or right-hand controls for ganging
of units in the field. Approved in
blow-thru applications only.
Also available with bottom or side
access to the burner drawer.
Indoor Gas Duct Furnaces
GDND/GDPD 010 012 015 017 020 022 025 030 035 040
Input MBh 100.0 125.0 150.0 175.0 200.0 225.0 250.0 300.0 350.0 400.0
Output MBh 80.0 100.0 120.0 140.0 160.0 180.0 200.0 240.0 280.0 320.0
Max CFM 2469 3086 3704 4321 4938 5556 6173 7407 8642 9877
Pressure Drop .90 .80 .75 .75 .75 .75 .80 .90 .90 .90
Min Temperature Rise F 30303030303030303030
Min CFM 929 1157 1389 1620 1852 2083 2315 2778 3241 3704
Pressure Drop .12 .13 .15 .14 .14 .14 .14 .13 .13 .14
Max Temperature Rise F 80808080808080808080
Flue Outlet 6"R 6"R 7"R 7"R 8"R 8"R 8"R 10"OV 10"OV 12"OV
1. All flue outlets are 5 1/8" O.D. ±1/32" (reducer by installer where required). Increaser supplied by manufacturer for 030,035,040 sizes.