Below are Frequently Asked Questions
Q: What do I precharge my thermal expansion tank to?
A: The precharge in your thermal expansion tank needs to be matched to the incoming water pressure to your home. The precharge needs to be set prior to installation of your expansion tank.
Q: What orientation can I install my thermal expansion tank?
A: It is recommended to install your thermal expansion tank in the vertical, downward orientation. However, alternative orientations are acceptable including horizontal when properly supported outlined in the provided installation and operation manual.
Q: Where can I find my Turbulator?
A: The Turbulator is a flow device provided with Therm-X-Trol models. The inline expansion tanks contain this Turbulator loose in the box and must be inserted prior to system installation. The stand model Therm-X-Trol’s will have this device installed at the factory.
Q: Where should I install my thermal expansion tank?
A: Your thermal expansion tank should be installed on the cold-water inlet of your water heater. If a backflow or check valve is present in your system, the expansion tank will need to be located after the valve, prior to your water heater.
Q: How do I know if my thermal expansion tank needs to be replaced?
A: In order to determine if your thermal expansion tank needs to be replaced, check the air pressure. Turn off the water supply to your home and open a hot water tap until the water stops. Remove plastic cap from the air valve to check the air pressure. If the pressure is low, the expansion tank should be replaced.