A condensing furnace - Study guides, Class notes & Summaries

HVAC Gas Heat certification exam Questions and Answers 100% Pass A gas furnace is to be installed in a garage. The national standards require that the burners and ignition sources must be located ______ above the floor - Correct Answer ️️ -18 inches A good description of how a bi-metal fan switch operates the blower motor on a gas furnace is - Correct Answer ️️ -Temperature on- temperature off Redundant gas valves used on gas furnaces have - Correct Answer ️️ -Dual gas shut o...

InterNACHI Question and answers rated A+ 2023b. end 1 inch above the waste drain line - correct answer A condensate line should ______________. a. empty directly into the waste drain line b. end 1 inch above the waste drain line c. not drain into the waste drain line d. extend at least 1 inch into the waste drain line c. is more efficient than conventional furnaces and uses a secondary heat exchanger - correct answer A condensing furnace _____________. a. works like an air condi...

Combustion in a direct spark ignition, condensing gas furnace is sensed by a. the primary control b. the flame sensor c. thermocouple d. the barometric damper e. the ignition module correct answersB Gravity warm air furnaces are different from forced air furnaces in each of the following respects except a. there is no fan b. there is no high temperature limit switch c. the furnace is always located in the center of the house d. the supply and return duct systems are large, round and...

Green Awareness Final Test Review Questions with Complete Solutions A "Heat Load Calculation" Uses the R values of building materials,Is used to properly size heating and cooling systems,Uses indoor and outdoor design temperatures for geographic location, All of the above A Bourdon tube is often found in a pressure gauge A condensing boiler condenses moisture from the flue gases A faucet water flow restriction device which adds air to the volume of water is the aerator A fauc...

______ draft is produced by a fan located between the boiler and the chimney - Answer induced _______ gauge glasses are used on boilers with precious exceeding 250 psi - Answer flat _______ is caused by allowing sudden extreme changes of temperature in a furnace - Answer spalling ________ boilers can operate at higher pressures than fire tube boilers - Answer water tube _________ are necessary for complete combustion - Answer time, temperature, mixture, and atomization _________ is alw...

HVACR UNIT 55 QUESTIONS AND ANSWERS ALREADY PASSED A major difference between the operation of an oil furnace and a gas furnace is that: The oil must be atomized before ignition. An oil furnace heat exchanger is built: Like a drum. How are oil burner nozzles rated? Cone shape, spray angle, and GPH Modern residential oil furnaces sense the flames using: A cadmium sulfide cell. Sealed combustion oil furnaces use: High static oil burners. Select the functions that the primary co...

What is the typical load rating of the branch circuit over-current protection for a residential gas furnace? - Answer-25 Amp What is recommended for a pressurization leak test of fuel gas pipe? - Answer-Compressed air When selecting a replacement indoor blower motor, Which criteria should be included? - Answer-Motor horsepower Induced draft blowers in direct vent condensing furnaces pull combustion air from: - Answer-Outdoors only What is the primary purpose of an off delay timer in ...

A gas furnace is to be installed in a garage. The national standards require that the burners and ignition sources must be located ______ above the floor : 18 inches A good description of how a bi-metal fan switch operates the blower motor on a gas furnace is : Temperature on- temperature off Redundant gas valves used on gas furnaces have : Dual gas shut off seats Burning one cubic foot of liquefied petroleum gas completely will produce approximately ______ BTUs : LP gas has a spe...

HVAC Gas Heat certification exam Questions and Answers 100% Pass A gas furnace is to be installed in a garage. The national standards require that the burners and ignition sources must be located ______ above the floor - Correct Answer ️️ -18 inches A good description of how a bi-metal fan switch operates the blower motor on a gas furnace is - Correct Answer ️️ -Temperature on- temperature off Redundant gas valves used on gas furnaces have - Correct Answer ️️ -Dual gas shut o...

b. end 1 inch above the waste drain line - ️️A condensate line should ______________. a. empty directly into the waste drain line b. end 1 inch above the waste drain line c. not drain into the waste drain line d. extend at least 1 inch into the waste drain line c. is more efficient than conventional furnaces and uses a secondary heat exchanger - ️️A condensing furnace _____________. a. works like an air conditioner, except that it heats instead of cools b. is a furnace cover...