Water Heater Expansion Tank Installation Diagram

I have 2 options to install expansion tank when i buy new water heater next week.

Water heater expansion tank installation diagram. As water heats it creates pressure that can stress the heater and. Determine which expansion tank you will need. Violating these codes may result in fines voiding your warranty or putting your family at risk. A 5 gallon expansion tank is needed for water heaters up to 100 gallons.

A 2 gallon expansion tank works with water heaters up to 50 gallons. Responsible for any water damage in connection with this expansion tank. Understanding water heater installation code requirements can be a real pain. A thermal expansion tank alleviates excess pressure in the lines of a closed system.

Consult with local building officials prior to installation. Two tankless water heaters of like models shall be installed in a parallel. Legend tankless water heater remote control ez link cable expansion tank circulation pump small 10 15 gallon point of use water heater ez link manifold installation and optional return circulation. Install the wh or whv tank as shown by teeing into the the.

Instructions new water heater installation an expansion tank is generally installed directly above the water heater by means of a tee fitting installed in the cold water delivery pipe. Expansion tanks some systems are considered closed meaning the backflow is blocked. You install the expansion tank down the line from the inlet valve that sends hot water into your home. And when water is heated and expands if it doesn t have an expansion tank to catch the overflow it can cause pipes to leak or even burst.

This must be left open to prevent vacuum build up in the water heater. In a closed plumbing system a standard tank water heater can stress your plumbing pipes and fixtures through the normal thermal expansion that happens when water is heated. Shut off power supply and cold water supply to the water heater. Water flows through the top portion and there is pressurized air in the bottom.

The tank has two sections that are separated by a rubber valve. Check the manufacturer s recommendations for exact sizing. Most areas of the country require that water heaters either have expansion tanks or special valves that release the excess water. He didn t it is just hanging there screwed into t fitting.

Both water heaters and boilers for home heating systems can be prone to this kind of damage unless measures are taken to prevent it. Drain water from the water heater by opening a faucet or other fixture. If i install the expansion tank vertically i would have to extend the cold water supply a few feet on the ceiling and then drop it straight down and back to the water heater. Damage to your water heater is also possible.