Answers
What are the 3 funtions of an Oil Burner nozzle? - ANSWER Atomize, Meter,
Patter.
What are the 2 voltage circuits of a primary control? - ANSWER Line & Low.
What is the function of a fuse? - ANSWER Protect circuit.
What is the High Limit cut out? - ANSWER Max safe Temp or Pressure setting.
What is the High Limit cut in? - ANSWER Cut out minus Differential.
What is the "Max" Lockout time for a burner with a 3 GPH Flow Rate? - ANSWER
45 Seconds.
What is the minimum stack temperature which will allow a stack switch to work? -
ANSWER 400 degrees F
When do you apply a permit to store oil? - ANSWER 10 gallons.
What is the "Main" function of an oil burner Primary Control? - ANSWER Prove
Flame.
Stack Relay must be reset after lockout? True? or False? - ANSWER True.
What is the Required minimum height required for fill and vent pipes? - ANSWER 3
Feet.
What is the smallest vent pipe used for residential. - ANSWER 1 inch 1/4
What size is the oil line for a residential burner? - ANSWER 3/8
Largest oil capacity for residential without a license? - ANSWER 10,000 Gallons
At what height ceiling would a second thermal switch be required? - ANSWER 12'
A typical residential oil burner is also s/u to run Kerosene True? Or False? -
ANSWER False
Permit to install an oil burner is issued by the? - ANSWER State Fire Marshall
Draft measurements are taken in what? - ANSWER Inches of water column
Pressure Relief for a Hot Water Boiler is? - ANSWER 30 Psi
, Pressure Relief for a Steam Boiler is? - ANSWER 15 Psi
How many cubic feet of Air is required for a 1 gallon nozzle? - ANSWER 1,400
If a power vent fails to start or shuts down during operation, will this affect the
burner? Yes? Or No? - ANSWER Yes
A Hot Water Boiler needs a low water cut off if over 300,000 B.T.U's? - ANSWER
False
What is the proper draft setting for an oil burner? - ANSWER .02 Inches WC
Taco Zones Valves draw .9 Amps? True? Or False? - ANSWER True
An oil burner tank must be how many feet minimum from an oil burner? - ANSWER
5 Feet Minimum
What is the gauge thickness for a 220 Gallon tank? - ANSWER 12 Gauge
What is a good cad cell reading in the light? - ANSWER 300 -1,000
What is a good cad cell reading in the dark? - ANSWER 100,000
What device sees flame failure and causes it to lockout? - ANSWER Cad Cell
A boiler has been flooded by recent rain. What would be the most common problem
for a burner as a result - ANSWER Electrical damage
What is the minimum size of pipping for copper and black pipe in a residential
installation? - ANSWER 3/8 unless over 100 ft
If you increased the air on a burner what would happen to the Co2 Reading? -
ANSWER It would go down
If you increased the air on a burner what would happen to stack temperature? -
ANSWER It would go up
Give 2 reasons why draft is necessary? - ANSWER Remove flu gasses &
efficiency.
Would an increase in excess air raise or lower the stack temp? - ANSWER Raise
Where should a hot water temp operating control not be located? - ANSWER Away
from the tankless coil
What are the requirements for pressure controls for boilers? - ANSWER Line
Voltage, ( Max 15 psi ) , Mounted on pigtail, and above water line.
What info on an oil burner certifies it has been approved by the Marshall? -
ANSWER Mass Approval #