GSI Outdoors AUTOFLOW 2TF - Manual (Page 33)

2000 Autoflow
33
Natural Gas (NG)
This dryer is designed to operate
on natural gas. Natural gas units
have a larger orifice to accommo-
date lower pressures sometimes
found with natural gas and do not
have vaporizer coils like liquid
propane units. A regulated pres-
sure of 10 PSI minimum, 30 PSI
maximum must be provided at the
field connection point on the fan
and heater unit, with gas available
in sufficient volume to maintain
the operating pressure.
See the “Fuel Systems and
Recommendations Chart” for
natural gas to determine the cor-
rect size line to run to the dryer.
Have a qualified gas service per-
son inspect the installation to be
sure everything is installed ac-
NG line field connection.
Fuel System Specifications and Recommendations
Natural Gas (NG)
Dryer
Fan Size
36”
36”
42”
42”
42”
42”
Dryer
Horsepower
10-12
15
15
20
30
40
Maximum Heat
Capacity BTU
Per Hour
3.5 million
4.5 million
5.75 million
6.75 million
8.75 million
10.25 million
cording to local codes and ordinances.
After installation is complete check all connections for leaks with
l iquid detergent or comparable. Wear rubber gloves and eye protection.
DO NOT USE FLAME FOR LEAK TESTING.
Maximum Fuel
Flow Cubic Ft.
Per Hour
3500
4500
5750
6750
8750
10250
Minimum
Line Size
1.1/2”
2”
2”
2”
2”
2”
Orifice
Size
13/32”
1/2”
33/64”
35/64”
19/32”
41/64”
Minimum
Operating
Pressure
1 lb.
1 lb.
1 lb.
1 lb.
1 lb.
1 lb.
Maximum
Operating
Pressure
7 lbs.
7 lbs.
7 lbs.
7 lbs.
7 lbs.
7 lbs.
INSTALLATION