![]() Be constructed of those materials listed in Section 605.4 or materials tested, rated and approvedfor such use in accordance with ASME A112.4.1.safety relief valve is mounted directly on the water heater vessel with. (2) Any temperature relief valve or combined pressure and. heaters shall meet the requirements of the code adopted by the facility being. Not have a threaded connection at the end of such piping. Temperature and pressure relief valves must be tested and approved to ANSI Z21.22 standard or equal. ![]() Terminate not more than 6 inches (152 mm) above and not less than two times the discharge pipe diameter above the floor or flood level rimof the waste receptor.Discharge to a termination point that is readily observable by the building occupants.Discharge in a manner that does not cause personal injury or structural damage.Discharge to the floor, to the pan serving the water heater or storage tank, to a waste receptor or to the outdoors.Electric water heaters shall conform to the requirements of this code and provisions of NFPA 70. Oil-fired water heaters shall conform to the requirements of this code and the International Mechanical Code. Serve a single relief device and shall not connect to piping serving any other relief device or equipment. Water heaters shall be installed in accordance with the manufacturers installation instructions.Not be smaller than the diameter of the outlet of the valve served and shall discharge full size to the air gap.The tank is quite easy to install with a normal 3/4-inch threaded connection. For most residential installations with 40- or 50-gallon water heaters, a simple 2-gallon tank is fine. Discharge through an air gaplocated in the same room as the water heater. Water heater expansion tank prices start at around 40 and range up to nearly 200 pricing is largely dependent on the size of the tank.CHAPTER 5 WATER HEATERS, 2015 International Plumbing Code (IPC) ICC Digital Codes Provides minimum regulations for plumbing facilities in terms of both performance and prescriptive objectives, and provides for the acceptance of new innovative products. Not be directly connected to the drainage system. To access printing capabilities, please subscribe to a Digital Codes Premium subscription.The discharge piping serving a pressure relief valve, temperature relief valve or combination thereof shall:
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