17233763
Description
Flashcards by Andrew Adams, updated more than 1 year ago
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Created by Andrew Adams
over 5 years ago
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| Question | Answer |
| components to inspect(gas) | meter; gas lines and shut off combustion air flame shield burners ignition flame pattern draft hood or diverter operation |
| steps of inspection (gas furnace) | turn off using safety switch remove flame shield examine burner heads turn on using safety switch operate using thermostat observe flame patterns reassemble |
| oil furnace components | incoming fill pipe oil tank copper supply line manual shut off filter return line(if present) exiting vent pipe |
| gun-type | oil burner atomizes by pump and nozzle; common/modern |
| pot-type | oil burner that uses gravity to feed oil; vaporized by heating and burning emitted vapors(old type, rare) |
| rotary-type | gravity fed; spins oil off rotary disc to atomize |
| gun-type oil burner components | primary control burner motor fan fuel pump ignition transformer blast tube |
| flame retention burner | has a flame retention ring combustion head that provides increase air pressure for more efficient combustion |
| steps of inspection(oil furnace) | turn off safety switch open porthole and inspect chamber lining close porthole and turn on safety switch observe ignition observe flames examine front of unit for soot... listen to burner |
| don't ever miss list | heat source in each room burner issues gas or oil leaks holes visible in heat exchanger missing filters upgrade/problem furnaces clearances draft hood spillage improper venting |
| ways to determine age of furnace | ANSI years plus 4(approximate) tagged date of manufacture Carson Dunlop tech guide for serial number |
| heating system safety hazards | damaged heat exchanger evidence of CO(detector used) vent system not working properly improper clearance gas/oil leaks open return from basement air blocked flue |
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