Design Guide
No. 160, 8/1/05
AirHeat
Burners
AH-MA Series
Version 2
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Adjustable
Profile Plate
Uniform
Air Flow
Flame
Length
Burner Body
Gas Feed Pipe
Heated Air
Uniform
Air Flow
Air Wing
Adjustable
Profile Plate
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∆
D
∆
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Max. Burner
Length Per
Inlet*
Gas
Pressure
Gas Inlet
Pipe Size
Directon
Section Type
1
1"
Side
Rear
Side
Rear
Rear
Side
Side
Rear
Side
Rear
Rear
Side
standard
300mm straight section
4
3
4
6
4
.5
2
1.5
2
6
2
1-1/2"
1-1/2"
2"
2"
2"
300mm straight section, Cast Iron standard
standard
300mm straight section
300mm straight section, Aluminum standard
standard
standard
Low
Low
Low
Low
Low
Low
300mm x 300mm cross section
300mm straight section
300mm straight section
300mm straight section, Cast Iron
300mm straight section
300mm straight section, Aluminum
300mm x 300mm cross section
300mm straight section
1"
1-1/2"
1-1/2"
2"
2"
2"
* Number of feet or 300mm sections
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Pipe
Union
Main
Gas
Burner
Feed Pipe
Pipe
Union
Gas Manifold
Plain
End Plate
Burner Body
Pipe
Union
Pilot End Plate
Spark
Ignitor
Pilot
Gas
Flame
Rod
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Burner Air InletTemperature @ 70 F
110
100
90
80
70
60
50
40
30
20
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
0.9
1.0
1.1
1.2
1.3
1.4
Combustion Air Pressure Drop ("w.c.)
DuctWidth
6" Min.
6" Min.
Gap,As
Required
Duct
Height
9.6"
(244mm)
AH-MA Burner
Profile Plate
Gap,As
Required
6" Min.
2"
2"
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6" Min.
3" Min.
6" Min.
2"
2"
First
Second
Stage
Stage
Burner
Burner
Profile
Plate
Profile
Plate
2"
2"
X
X
X
X
6" Min.
Note:
Make all profile gaps equal (shown as “X” above); profile
plate width between the burners should be at least 3".
DuctWall
Air Flow
Air Flow
DuctWall
Staged Burners
Steel channel of the correct width can be used as the center profile
plate. Install with the legs pointing toward the incoming air flow.
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AH-MA
Burner
Adjustable
Profile Plate
Elongated Screw Slots
Fixed
Profile Plate
Duct
Wall
Side View
Front View
Profile
Plate
¼ to 1"
Caution:
Profiles plate should be positioned
upstream of the firing end of the
burner. If necessary, the plates can be
located up to 1" back from the firing
end, but under no circumstances should
they be in front of the burner.
AH-MA
Burner
Profile
Plate
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Stage 2
Main
Gas
Pipe
Union
Pipe
Union
Pipe
Union
Stage 1
Main
Gas
Pipe
Union
Staging
Divider Plate
Part No. 76506
Pipe
Union
Stage 1
Pilot Gas
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Pipe
Union
Flexible
Nipple
Main Burner
Flexible
Nipple
Shut-Off Valve
Manual
Butterfly
Valve
Pipe
Union
Duct Wall
Main Gas
Control
Valve
Adjustable
Gas Cock
OR
Adjustable
Solenoid
Valve
Main
Gas
(from shut-off
valve train)
Orifice Valve
& Gas Cock
Pilot
Pressure
Regulator
Pilot
Shut-Off
Valve
Pilot
Gas
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Pipe
Union
Burner 1
Shut-Off Valve
Flexible
Nipple
Manual
Butterfly
Valve
Main Gas
Control
Valve
Duct Wall
Solenoid
Valve
Pipe
Union
Flexible
Nipple
Burner 2
Shut-Off Valve
Manual
Butterfly
Valve
Pipe
Union
Main Gas
Control
Valve
Flexible
Nipple
Main
Gas
(from shut-off
valve train)
Adjustable
Gas Cock
Solenoid
Valve
OR
Solenoid
Valve
Adjustable
Orifice Valve
& Gas Cock
Pilot
Pressure
Regulator
Pilot
Shut-Off
Valve
Pilot
Gas
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