EWH Parts and Function
This type of fitting should be used when connecting two dissimilar metals together on top of a water heater
What is a di-electric union
This tool is used to diagnose most issues with and electric water heater.
What is a multimeter
A Gas Water Heater works by this law of physics
What is Convection
What does BTU stand for?
British Thermal Unit
Most electric water heaters are classified as a _____v - ______W non simultaneous fire.
240v - 4500W
A water heater needs to be supplied power using a a line with how many wires.
A Gas water heater heats water utilizing these two things.
The Exhaust and the Burner Assembly
When using this material for Gas Delivery, the adapters used for connection must be electrically bonded.
What is CSST
This part of the water heater is sacrificial, and saves the tank from corrosion caused by hardwater.
What is the anode rod
An element can be isolated and tested with these two settings on a multimeter
What are OHMS and Continuity
This colorless and odorless gas is the reason heaters need to be vented properly
What is Carbon Monoxide
When checking a gas system for leaks, where should you check first?
Fittings, Connections, Unions
If you don't ensure your water heater is completely filled before energizing, this phenomenon could occur.
What is a Dry Fire.
If power is not making it past L1 and L3 what event has occured?
High Limit Switch has Tripped
This acronym is what defines the technology present gas water heaters that prevents a flashback fire from occurring.
What is FVIR (Flammable Vapor Ignition Resistant)
Normally odorless, the municipality adds this additive to gas so we can detect when a leak is present.
What is Mercaptan
A Expansion tank must be set +or- ___ PSI of the homes water pressure.
What is 2
If my and electric heater is in Stand-By and I check 1 and 2 on my Lower thermostat, what voltage should my multimeter read?
What is ~240v
If my Thermopile is good, I should get this reading
What is 300 Millivolts in 90 Seconds.
When sizing a gas distribution system these two important metrics must be taken into account
What is the longest run and total btus