Where are mixing valves required?
For combined heating hot water and domestic hot water systems, when the heating hot water system exceeds 140°F the IPC code requires a temperature actuated mixing valve conforming to ASSE 1017 to limit the domestic hot water temperature to a maximum of 140°F.
Does every shower have a mixing valve?
If your shower has a single-control lever, you most likely have a pressure-balancing mixing valve. A mixing valve is installed into your shower faucet and blends hot and cold water together to deliver comfortable showering temperatures. A behind-the-scenes look at your shower mixing valve.
Do all showers have an anti scald?
Nowadays, new construction codes require these kinds of valves, but if your home is a little older it may not have any installed. If your shower doesn’t have one, your water temperature may get so hot it can cause burns.
What do I need to know about shower control valves?
P2708.4Shower control valves. Individual shower and tub/shower combination valves shall be equipped with control valves of the pressure-balance, thermostatic-mixing or combination pressure-balance/thermostatic-mixing valve types with a high limit stop in accordance with ASSE 1016/ASME A112.1016/CSA B125.16.
Is the in line thermostatic valve allowed in a shower?
In-line thermostatic valves shall not be utilized for compliance with this section. In the language in section 424.3 of the 2012 IPC, it is clear that the shower valve has an adjustment on it called a “maximum temperature limit-stop.”
When do you change the temperature of the shower valve?
In the language in section 424.3 of the 2012 IPC, it is clear that the shower valve has an adjustment on it called a “maximum temperature limit-stop.” It must be adjusted after installation and before occupancy of the building where the contractor or owner must set and maintain the limit-stops seasonally for scald protection.
Do you have to replace a 2 handle shower valve?
Well, if you have a 2 or 3 handle tub/shower valve currently in your home, you have been grandfathered in and you don’t need to immediately replace it. However, if something goes wrong with that valve and it must be replaced, you will have to do so with a single handle pressure balanced or thermostatically controlled valve.
P2708.4Shower control valves. Individual shower and tub/shower combination valves shall be equipped with control valves of the pressure-balance, thermostatic-mixing or combination pressure-balance/thermostatic-mixing valve types with a high limit stop in accordance with ASSE 1016/ASME A112.1016/CSA B125.16.
In the language in section 424.3 of the 2012 IPC, it is clear that the shower valve has an adjustment on it called a “maximum temperature limit-stop.” It must be adjusted after installation and before occupancy of the building where the contractor or owner must set and maintain the limit-stops seasonally for scald protection.
In-line thermostatic valves shall not be utilized for compliance with this section. In the language in section 424.3 of the 2012 IPC, it is clear that the shower valve has an adjustment on it called a “maximum temperature limit-stop.”
Well, if you have a 2 or 3 handle tub/shower valve currently in your home, you have been grandfathered in and you don’t need to immediately replace it. However, if something goes wrong with that valve and it must be replaced, you will have to do so with a single handle pressure balanced or thermostatically controlled valve.
