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Ch 1 Flame Retention Burner - ANSWER-An oil burner, designed to hold the flame near the nozzle surface. Strongly swirling air pattern recirculates combustion products for more complete mixing of fuel and air. Ch 1 Motor - ANSWER-Electric motor drives the fan and fuel pump. In the event of motor failure, be sure to replace with motor of same rotation, frame size and RPM Ch 1 Multiblade Fan + Air Shutter - ANSWER-A fan wheel within the burner housing that is driven directly by the motor shaf...

air bend - ANSWER-regulates the volume (amount) by changing it to a spray of tiny droplets atomizing - ANSWER-vaporizing liquid oil (turning it into gas) by changing it to a spray of tiny droplets bleeder - ANSWER-on the side of the oil pump - used to remove air from oil line cad cell - ANSWER-detects if a flame is present combustion head - ANSWER-plate at the end of the burners air tube - specifically designed slots to guide air flow for ideal combustion drawer assembly - ANSWER-...

When nozzles problems are apparent, the nozzle should be removed using ____ and replaced - ANSWER-a special nozzle wrench The cad cell relay is a safety device that uses which of the following to prove ignition? - ANSWER-light in the combustion chamber The stack switch or stack relay _____. - ANSWER-shuts down the burner if it does not sense heat in the stack A condensing oil furnace operates at a higher efficiency because part of the heat output is ____. - ANSWER-latent heat Impro...

the breaking up of a liquid into tiny droplets - ANSWER-atomization the ignition of a large amount of vaporized fuel oil that blows soot backward out of the combustion chamber - ANSWER-blowback a pump used to move fuel oil from the main storage tank to a fuel oil accumulator or reservoir tank nearer to the oil burner - ANSWER-booster pump a small plug that is threaded into the internal bypass between a fuel unit's inlet and return ports - ANSWER-bypass plug a light-sensitive semicon...

Pour point - ANSWER-The maximum temperature at which oil can be stored, retrieved and used Complete Combustion flames - ANSWER-mainly yellow Incomplete combustion flame - ANSWER-dull reddish orange The Range of CO2 content indicating proper combustion in an oil fired furnace - ANSWER-8% to 12% For accurate readings for a CO2 test, the analyzer probe should be placed - ANSWER-near the hottest part of the flue The most common reason an oil-fired furnace is over firing - ANSWER-origi...

When applying current through a conductor that is wound in coil, the magnetic lines of force created are used in - ANSWER-•Solenoid valve . Relay .Electric Motor If in an average 15-amp residential heating circuit, the fuse occasionally blows, you should - ANSWER-Install a 15-amp breaker To determine the "electrical potential" available at any given point in a circuit you should use a: - ANSWER-Voltmeter Oil burner ignition systems normally operate at what primary voltage - ANSWER...

The primary control starts burner operation in response to a signal from​ the_____. - ANSWER-room thermostat When replacing an oil burner​ nozzle, always use​ a(n)_____. - ANSWER-nozzle wrench When doing a smoke spot test on a heavy​ boiler, an acceptable smoke spot number​ is_____. - ANSWER-two When reviewing the results of a combustion efficiency test for a furnace with a flame retention​ burner, the oxygen level should be​ _____. - ANSWER-3 to 5 percent In the presen...

Add an oil line heater. Cut with #1 fuel or kerosene. What is the maximum tank size allowed inside unenclosed? - ANSWER-660 gal What is the purpose of a delayed oil valve? - ANSWER-Allows time for the oil pump to get up to speed. Delays oil flow to the nozzle. On a call where a hydronic heat system is putting out too much heat, the issue could be? - ANSWER-A shorted out thermostat. When measuring a cad cell with the burner running and the ff terminals jumped out, what should ...

To wire an oil burner in MA you must be a licensed electrician: T or F - ANSWER-False Flash Point is the lowest temp. at which the vapours above the fuel will ignite: T or F - ANSWER-True Pour Point is the lowest temperature at which No. 2 fuel oil can be lit: T or F - ANSWER-False If the centrifugal switch on a split phase motor did not open the motor could burn out: T or F - ANSWER-True In MA 527CMR4.00 a 15 amp breaker, emergency switch, thermal switch, service switch, are require...

wax crystals form, gels up and the viscosity of the oil goes up - ANSWER-What happens to fuel oil when it is stored outside on a day when the temp. is only 12 degrees F? 85% carbon, 15% nitrogen, (ASTM D-396) - ANSWER-What is the chemical composition of fuel oil? If flames hit chamber it will cause soot and carbon, blocks up the heat exchanger passage - ANSWER-What does impingement mean and why is it a problem? 1 quarter inch - ANSWER-How far is the burner blast tube set back in a combu...