Electric Water Heater Parts
A ____ is the amount of energy used to raise 1 pound of water 1 degree.
What is a BTU (British thermal unit)
The ______ are used to heat the water in an electric water heater.
What is the elements.
A gas water heater works by a law of physics known as ________.
What is convection.
When doing a descale on a tankless, you hook up to the _________ located on the heater itself.
What are isolation valves
What is a Di-electric union
When diagnosing an electric water heater, the use of _____ law is needed to get a proper diagnosis
What is Ohms Law
What is carbon monoxide poisoning
The most typical leak location on a gas system is ______
What is connections/fittings
This device disrupts the incoming power to L1 and L3 when unsafe temperatures are present.
What is a high limit switch
When working properly, testing L1 and L3 together should read _____v.
What is 240v.
As the exhaust exists the combustion chamber it travels up the flue and is slowed by _____ helping to heat the water.
What are baffles
This metric is used to determine the size of all outlets on a gas system through each primary section of the house piping.
What is the longest length (to most remote outlet)
A thermal expansion tank should be installed on the _____ side of the system.
What is the cold water side
When jumping an electric heater to stage 2, you wire ____ to _____.
What is T2 to T4
The 3 type of exhaust are ______, ______ and ______?
What are atmospheric, power vent, and direct vent
The additive ______ is added to give natural gas a rotten egg smell.
What is Mercaptan
A Temperature and Pressure (T&P) valve is rated to ______. If it reaches this max, it will discharge water until below max levels.
Wha is 150 psi @ 210°
_____ post constantly sends power to the upper and lower elements.
What is L4
The technology that prevents flashback fires from breaking out by trapping and burning the hazardous gas vapors inside its body instead of the room.
What is FIVR (Flammable Vapor Ignition Resistant)
_____, ______, ______, and ____ are approved materials for delivery of gas to a home.
What are Copper, Black steel, galvanized and CSST.