Bulletin 160C

8/00

Air Make-Up Burners

ECLIPSE AH-MABURNERS

E C L I P S E

Designed for trouble-freemake-up or process air heating.

Eclipse AH-MA burners produce a uniform, odorless, and smokelessflame ideal for heating fresh air inmake-up and process air heating applications. The AH-MA design provides stable operation over a widerange of velocities, inputs and fuels.

AH-MA easily passes all global standards for indoor air quality through a wide operational range. It is ETL listed,complying with ANSI Z21.20 designstandards, and is used in systemswhich meet ANSI Z83.4 / CGA 3.7emissions standards for NOx and CO.

The new aluminum burner body creates a lightweight, corrosion resistant burner. Cast iron and corrosionresistant cast iron bodies are also available. Divergent air wings are madeof stainless steel. The burner bodiessupply fuel to the center of the airwings to control the air and fuel mixtureinside the burner and to optimize emissions and efficiency.

Low pressure models require only a6.0" w.c. ΔP natural gas at 800,000Btu/hr/LF, making them ideal for usewith the Maxitrol Selectra control valve.

Ready for the world

AH-MA burners combine advancedengineering with installation and operational features that are truly world class.

• Assembled from straight sections,tees and crosses to produce nearly any configuration required.

• Inputs up to 1,200,000 Btu/hr/LF

• Up to 30:1 turndown

• Up to 450°F upstream air temperature.

• Up to 850°F downstream air temperature.

• Multi-fuel capability (natural gas, propane and butane)

In addition to the many user-preferredfeatures of AH-MA, Eclipse offers you acomprehensive, global network of servicewith more years of air-heating experiencethan any other burner manufacturer.

AH-MA BurnersIdeal for make-up air heating applications

Bulletin 160C 8/00 Litho in USA

AdjustableProfile Plate

UniformAir Flow

UniformAir Flow

AdjustableProfile Plate

Burner Body

Gas Feed Pipe

Air WIng

HeatedAir

FlameLength

AH-MA SeriesVersion 2.20

AirHeatBurners

11/7/04Data 160

** Burners over 5 lineal feet include flame supervision at the far end. If pilot ignition is being used,two flame supervision units are required; one for the pilot and one for the far end. If using directspark on the main flame, only flame supervision at the far end is required providing ignition canbe accomplished within 15 seconds. (Reference NFPA Requirement 5-9.2.2)

• Eclipse reserves the right to change the construction and/or configurations of our products atany time without being obliged to adjust earlier supplies accordingly.

• All information is based on laboratory testing. Different chamber size and air flow conditionsmay affect the data.

• All information is based on standard conditions (70°F at sea level). Contact Eclipse forperformance data above ambient temperature.

• All inputs based on gross caloric values.

Main Specifications

Parameter Description

Input (Btu/hr./ft.) 1,200,000 maximumCombustion Airstream 0.2" to 1.4"w.c.Pressure Drop/Velocity Ignition Direct spark ignition (6000VAC).Pilot Interruptible pilot for natural gas, propane or butane.Integral Pilot Capacities 20,000 Btu/hr. Burner Bodies Standard Aluminum Low Pressure Aluminum* Standard Cast Iron Corrosion Resistant, EN Plated Cast Iron Low Pressure Cast Iron*Burner Section Sizes • 150mm (6") straight section • 300mm (12") straight section • 300mm (12") straight section with back inlet • 300mm (12") straight section with pilot • 150mm (6") by 300mm (12") tee section • 150mm (6") by 300mm (12") tee section with pilot • 300mm (12") by 300mm (12") cross sectionPipe Threads N.P.T. or B.S.P.Maximum Upstream Air Temp. 450˚F (232˚C)Maximum Downstream Air Temp. 850˚F (454˚C)Maximum Temperature Rise 750˚F (400˚C)Minimum Inlet Air Oxygen (O2) 18%Flame Detection** Flame rod or scanner.Fuels Natural gas, propane or butane.

* For use with Natural Gas only.

Eclipse AH-MA AirHeat Burners v2.20, Data Sheet 160, 11/7/042

Operating Range & Duct Pressure Measurement

Inlet Air Temperature Correction

1,000,000

900,000

800,000

700,000

600,000

500,000

400,000

300,000

30,000

25,000

20,000

15,000

10,000

5,000

0

1,100,000

1,200,000

1,300,000

Natural GasPropane/Butane

Hea

t In

put

(Btu

/hr.

/ft.)

0.2 0.4 0.6 0.8 1.0 1.2 1.4

Air Pressure Drop ("w.c.) @ 70˚ F Air Inlet

Maxim

um H

eat In

put

Minimum Heat Input

Air Press. Drop @ Air Temp. = Air Press. Drop from “Oper. Range” Chart x Correction Factor

Air Inlet Temp. (°F) 0 30 70 150 200 250 300 350 400 450

Correction Factor 0.87 0.92 1.00 1.15 1.25 1.34 1.43 1.53 1.62 1.72

Air Velocity Calculation

Air Velocity (fpm) = 1096.2 Air Pressure Drop ("w.c.)

Air Density (lbs./cubic ft.)

Eclipse AH-MA AirHeat Burners v2.20, Data Sheet 160, 11/7/04 3

Differential Pressure Measurement & Burner Gas Pressure Drops

Flame Lengths

Emissions Data

60

70

50

40

30

20

10

0100 200 300 400 500 600 700 800 900 1,000 1,100 1,200

Fla

me

Len

gth

(Inc

hes)

Heat Input (1000’s Btu/hr./ft.)

0.4"w.c. 0.7"w.c.1.0"w.c.

Air Pressure DropFlameLength

Note:Flame length may vary slightly from these values depending on actual fuel, air handling system, duct configuratons and profile plates uses.

100

80

90

70

60

50

40

30

0 200 400 600 800 1,000 1,200

NO

x (p

pmvd

@ 3

% O

2)

Input (1000’s Btu/hr./ft.)

20

10

0

0.4"w.c. 0.7"w.c.1.0"w.c.

Air Pressure Drop

1400

1000

1200

800

600

400

200

00 200 400 600 800 1,000 1,200

CO

(pp

mvd

@ 3

% O

2)

Input (1000’s Btu/hr./ft.)

1600

1800

0.4"w.c. 0.7"w.c.1.0"w.c.

Air Pressure Drop

“D”10-20"(254-508mm)

30

25

20

15

10

5

00 200 400 600 800 1,000 1,200

Gas

Pre

ssur

e D

rop

("w

.c.)

, B

urne

r In

let

to D

uct

Heat Input (1000’s Btu/hr./ft.)

Main gas differential pressure measured between “A” and “D”

Natural Gas*Propane*Butane*Natural Gas (Low Press.)* *

* 2.0mm gas ports.* * 2.4mm gas ports

"A"Tap On

Inlet GasPiping

•