3
AG2 Series - 4” Tube Heater Installation, Operation, Maintenance and Parts Manual
AG2 Series Mechanical Instructions
This supplement is designed to address the specifics of the AG2 Series - see page 12 for product features.
Burner
Curtain
Wall
1/4” Bird
Screen
B
Combustion Chamber
Combustion Chamber
Combustion Chamber
Combustion Chamber
Combustion Chamber
*
*
*
*
*
B
B
B
B
B = Burner location
= Baffle location
*
Aluminized
(65-75 MBTU/H)
Aluminized
(65-100 MBTU/H)
Aluminized or Titanium
(65-125 MBTU/H) (150 MBTU/H)
Aluminized or Titanium
(100-125 MBTU/H) (150 MBTU/H)
Titanium
(150 MBTU/H)
Uncoated Hot-rolled
Uncoated Hot-rolled
Uncoated
Hot-Rolled or Aluminized
(65-125 MBTU/H) (150 MBTU/H)
Uncoated Aluminized
(150 MBTU/H)
Tube Installation Sequence
The AG2 Series has a 4" uncoated combustion chamber (identified by an orange sticker) and 4" uncoated hot rolled steel
(HRT) heat exchangers, following the combustion chamber and every tube there after. 150,000 BTU/H models incorporate an
aluminized tube to be placed directly following the combustion chamber. Tube packages with the ALUM-AO upgrade will have
4” black coated aluminized heat exchangers replacing the uncoated hot rolled steel. See the Tube Installation Sequence chart
below for an illustration.
Operational Features
Outside air for combustion is required in all agricultural applications. Place air inlet in a non-contaminated area, away from any
steam or moisture sources.
Product Summary
AG2 Series heaters are available from 20 to 60 foot, 65,000 to 150,000 BTU’s, natural or LP gas. AG2 Series are positive
pressure, two stage heaters and feature uncoated hot rolled steel for it’s radiant pipes.
Combustion Air
The combustion air intake collar is also a factory-preset air orifice.
Non-contaminated air for combustion must be ducted to the heater
in all agricultural applications.
Do not take combustion air from positively or negatively
pressurized attic spaces, except in broiler houses.
Locate intake away from any steam source. Use caution when
placing intake above curtain walls, as they leak .
See adjacent figure. Use light gauge, 4 inch PVC air intake
material from curtain sidewall to heater. Do not exceed 25 feet.
With elbow, drop below curtain top, one foot in length. Cap with
1/4 inch birdscreen.
Uncoated
Hot-Rolled or Aluminized
(100-125 MBTU/H) (150 MBTU/H)
Uncoated Hot-rolled
Uncoated Hot-rolled
Uncoated Hot-rolledUncoated Hot-rolled
Uncoated Hot-rolled
Uncoated Hot-rolled
Uncoated Hot-rolledUncoated Hot-rolled
Uncoated Hot-rolled
Uncoated Hot-rolled
Air Intake through attic
for broiler houses.
