4.0Start-Up And Adjustment (cont’d.)

Set Air Pressure Drop

Measure the air pressure drop across the burner as shown in Figure 7.

 

 

 

Turn the disc on the blower air inlet until the air pressure drop is between 0.4"

 

w.c. minimum and 1.0" w.c. maximum. For a given input, lower air pressure

 

 

 

drops will produce a longer flame, and higher drops will produce a shorter flame.

 

Large Burners Only: Some models, such as the 640, 680, and 720 TAH burn-

 

ers, contain a butterfly valve in the check valve line as shown in Figure 8. On

 

these models, after setting the air flow as described in the previous paragraph,

 

measure the air pressure drop between the gas pressure tap and duct as shown

 

in Figure 7. Gas flow must be off. Adjust the butterfly valve to produce an air

 

 

 

pressure drop of 0.2" w.c.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Start Spark

Energize the ignition spark. Do not touch

Figure 8–Butterfly

 

the ignition rod, ignition wire, or trans-

in Check Valve Line

 

former while the spark is energized, or

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

you will get a shock.

 

Butterfly Valve On

 

 

Set Pilot Flow

Open all pilot gas valves, including the

640, 680 & 720

 

 

 

 

 

Check

 

TAH Burners

 

Valve

 

handle of the pilot cock, Figure 6. The pilot

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

should light.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Turn the pilot adjusting screw to produce a

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

bushy blue flame that provides a flame

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

monitoring signal strong enough to reliably

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Set Gas Flow

open the gas shut-off valves.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Measure the gas differential pressure as

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

shown in Figure 7.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

With the gas control valve at low fire, open

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

all main gas valves. The burner should

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

light with a stable, blue low fire flame that extends evenly down the burner

 

 

 

length.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Drive the control valve to high fire and adjust the gas adjusting valve to produce

 

a pressure drop that corresponds to the desired high fire rate, as shown in Fig. 1.

 

When setting high fire, be sure the flame does not impinge on anything down-

 

stream of the burner. To shorten the flame length for a given gas input, increase

 

the air pressure drop as described above.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Check All Settings

Return the burner to low fire and check to be sure that the burner remains lit with

 

a stable flame that extends down the burner length. Cycle the burner between

 

low and high fire several times, checking pressure drops and flame lengths.

 

 

5.0Routine Maintenance

Motor Lubrication

Oil the blower motor according to the manufacturer’s instructions as printed on

 

the motor label.

Ignition Plug/Flame Rod

Ignition plugs and flame rods wear out over long periods of normal burner opera-

 

tion. Eclipse recommends that the user keep at least one of each in stock at all

 

times to prevent nuisance shutdowns.

Eclipse AirHeat v1.0 - Installation Guide No. 140, 11/4/03

7

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Eclipse Combustion DAH, TAH, CAH manual Start-Up And Adjustment cont’d, Routine Maintenance
Page 6 Page 8

CAH, DAH, AH, TAH specifications

Eclipse Combustion is a noteworthy player in the combustion technology sector, particularly renowned for its innovative direct-fired burners, specifically the DAH, TAH, AH, and CAH models. These burners are designed to achieve optimal performance in various industrial applications by providing efficient, reliable, and environmentally sustainable solutions.

One of the main features of Eclipse’s combustion products is their focus on efficiency. The DAH and TAH models incorporate advanced air-fuel mixing technologies, ensuring thorough combustion and minimal emissions. This proficiency enables manufacturers to not only meet stringent environmental regulations but also reap cost savings through improved fuel efficiency.

The AH model stands out for its versatility, catering to a wide range of applications, from thermal oxidizers to industrial ovens. It is engineered with attention to operational flexibility, allowing users to tailor burner operations to specific environmental conditions or production requirements. This adaptability ensures that facilities can maintain optimal performance regardless of changing demands.

Eclipse’s CAH model highlights the company’s commitment to innovation. It features a compact design that integrates easily into existing systems, reducing the need for complex retrofitting. The CAH model is equipped with advanced control systems that allow for real-time monitoring and adjustments. This technology enhances operational reliability and enables maintenance teams to proactively address any issues, thereby reducing downtime.

Safety remains a crucial characteristic across all Eclipse Combustion products. The DAH, TAH, AH, and CAH models are designed with multiple safety features, such as flame monitoring systems and emergency shut-off valves. These features are essential in safeguarding workers and equipment, ensuring that operations can continue smoothly without compromising safety standards.

In addition to performance and safety, Eclipse Combustion prioritizes sustainability. The technologies embedded in the DAH, TAH, AH, and CAH models facilitate the efficient use of fuels, leading to reduced greenhouse gas emissions. As industries around the world strive for greener operations, these burners represent a strategic investment for organizations committed to environmental stewardship.

In summary, Eclipse Combustion's DAH, TAH, AH, and CAH models are characterized by their efficiency, versatility, innovative design, safety features, and commitment to sustainability. These attributes make them a reliable choice for industrial applications seeking to enhance performance while minimizing environmental impact. As global industries continue to evolve, Eclipse Combustion remains at the forefront, delivering advanced solutions that meet the demands of modern combustion technology.
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