Rooftoop
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
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| Gas Heating Burners | show 🗑
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| show | 1. Pulls combustion gasses through the heat exchangers. 2. Slight negative pressure in the heat
exchanger.
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| Forced-Draft | show 🗑
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| Purpose of the burner | show 🗑
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| show | Primary air enters the burner near the orifice, velocity to creating a low pressure area, forcing it into the combustion area, Primary air alone does not provide complete combustion. Secondary air is required
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| show | Negative pressure draws in the primary air
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| show | Primary Air Shutters, two types: 1) butterfly 2) Rotating cylinder
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| Two General Classifications of Burners | show 🗑
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| Types of Burners | show 🗑
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| All these burners are known as atmospheric burner | show 🗑
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| Multi-Port Burner Components | show 🗑
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| Single Port Burners Upshot & Inshot | show 🗑
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| show | Their low cost and simplicity, used today induced draft and condensing furnaces
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| show | To stabilize the flame and minimize lifting because of increase air, a flame retainer is used to provide a quenching surface to anchor the flame. Noisy than multi-port
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| Single Port Burners | show 🗑
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| show | slots it is necessary to have a flame carry over between burners, so a single ignition device can ignite all the burners,
Carry over ports are built into burners for this purpose and are shaped to span the gap between the burners.
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| Gas Manifolds | show 🗑
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| show | The orifice is a precisely drilled hole through which the gas flows from the manifold to the burners. The orifice is located in the spud. The spud is screwed into the manifold. The orifice allows the correct amount of gas into the burner
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| show | Control Gas flow inject primary air
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| show | 1) Misaligned Orifice Spoils Primary injections 2) Don't cross-Thread the spud
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| show | 1) Check the Orifice size for each installation 2) Replace new Orifice with proper size 3) Don't drill out or peen!!
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| Determining the Size of the Orifice | show 🗑
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Review the information in the table. When you are ready to quiz yourself you can hide individual columns or the entire table. Then you can click on the empty cells to reveal the answer. Try to recall what will be displayed before clicking the empty cell.
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To hide a column, click on the column name.
To hide the entire table, click on the "Hide All" button.
You may also shuffle the rows of the table by clicking on the "Shuffle" button.
Or sort by any of the columns using the down arrow next to any column heading.
If you know all the data on any row, you can temporarily remove it by tapping the trash can to the right of the row.
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Created by:
toolegit