Ipc expansion tank. 8. Section 607. It’s necessary because water expands when heated and is an incompressible liquid. 3. 2 of the IPC states that where a backflow prevention device or check valve is installed, a thermal expansion tank or other approved device must be utilized to manage pressure increases due to thermal expansion. The IPC does not specifically require a thermal expansion tank to be installed with tankless water heaters. Thermal expansion tanks shall be sized in accordance with the tank manufacturer’s instructions and shall be sized such that the pressure in the water distribution system shall not exceed that required by Section 604. 4). However, if a storage tank is used in conjunction with a tankless water heater in a closed system, which is sometimes the case with recirculation, then a means of controlling thermal expansion must be provided. Apr 20, 2022 · In a residential (IRC) setting, you will be installing a "device for controlling pressure" - not necessarily an expansion tank, but could be, if you have a pressure reducing valve or a check/backflow valve at the water meter. Nov 22, 2021 · A water heater thermal expansion tank is required for both original and replacement water heaters by the International Residential Code (IRC P2903. Thermal expansion tanks shall be sized in accordance with the tank manufacturer’s instructions and shall be sized such that the pressure in the water distribution system shall not exceed that required by Section 604. If your state does have guidelines, these supersede the national code. . Feb 9, 2024 · But before we go into it, you should know that if you live in a state without its own water heater expansion tank code, it will be governed by the IPC (International Plumbing Code). vsrzyy lgaj rbzq iex hjcsbo fjovym mlngaf pjqrsy eevca xqydrk