13
4
Hydronic piping
(continued)
Anti-scald mixing valves
Anti-scald valves used with water heaters are also called
tempering valves or mixing valves. An anti-scald valve mixes
cold water with the outgoing hot water to assure that hot
water reaching a building fixture is at the correct temperature.
A mixing valve is required when the Thermal-Stor is used to
generate domestic hot water.
The temperature of water going to the fixtures may be more
carefully controlled through the use of a thermostatic mixing
valve. This device blends a controlled amount of cold water
with the hot water leaving the tank so that water at a more
constant temperature exits the mixing valve. Always consult
the mixing valve manufacturer’s instructions and guidelines for
correct piping and usage.
WARNING
An anti-scald mixing valve does not
eliminate the risk of scalding.
•
Feel water before bathing or showering.
•
If anti-scald or anti-chill protection is
required, use devices specifically
designed for such service. Install
these devices in accordance with their
manufacturer’s
instructions.
ASSE1017 and ASSE1070 certified mixing
valves are required.
NOTICE
WARNING
Hot water can scald! To avoid scalding
potential, mixing valves must be selected and
installed according to valve manufacturer’s
instructions and recommendations. Mixing
valves should be installed by a licensed
contractor.
Installation & Operation Manual
