Oil Burner Components
What component detects the presence of an oil burner flame?
CAD CELL
What type of fittings are used to join copper oil lines?
Flared fittings
In what chamber does the fuel-air mixture burn?
Combustion chamber
What does the cad cell sense?
Light from the burner flame
What may cause flame failure: a clogged nozzle or a defective fuel pump?
Both can cause flame failure
What passage carries combustion air from the burner fan into the combustion chamber?
Air Tube
What fuel property determines the lowest temperature at which oil can still flow?
Pour point
What is the typical draft measurement listed for an oil furnace?
Approximately −0.02 inches water column
What is the period when a furnace is waiting for a call for heat called?
Standby
What instrument measures chimney draft?
Draft gauge
What device creates turbulence to mix combustion air and fuel?
Static pressure disk
What device removes air from the oil supply system?
Oil deaerator
What two temperatures are used to calculate net stack temperature?
Flue gas temperature minus combustion air temperature
What does flame failure response time measure?
The time for the primary control to recognize loss of flame
What component can help resolve recurring air problems in an oil line?
Oil deaerator
What component directs atomized fuel into the combustion chamber?
Burner Nozzel
Which fuel delivery system is normally self-priming?
Two-pipe system
What moves flue gases up a chimney in a typical residential oil system?
Natural convection (natural draft)
What is the reset limit?
The number of permitted manual resets from lockout
Why should oil filters still be serviced when fuel additives are used?
Additives do not eliminate the need to replace filters
What component starts and stops the burner while monitoring safe operation?
Primary control unit
What can happen when excessive vacuum is applied to fuel oil?
It can foam and release vapor or dissolved gases
What condition describes a burner producing more heat than intended?
Overfiring
Why should you never short the terminals of a solid-state igniter?
It may damage or destroy the internal circuitry
Where are draft measurements commonly taken on an oil furnace?
In the combustion chamber and the flue