Water Piping - Kenmore 153.582400 Use & Care Manual

Water Piping

HOTTER WATER CAN SCALD: Water heaters are intended to
produce hot water. Water heated to a temperature which will satisfy
clothes washing, dish washing, and other sanitizing needs can
scald and permanently injure you upon contact. Some people are
more likely to be permanently injured by hot water than others.
These include the elderly, children, the infi rm, or physically/
mentally challenged. If anyone using hot water in your home
fi ts into one of these groups or if there is a local code or state
law requiring a certain temperature water at the hot water tap,
then you must take special precautions. Use the lowest possible
temperature setting that satisfi es your hot water needs. Also, to
reduce the risk of scalding, the manufacturer of this water heater
recommends installing a mixing valve at each point of use. Mixing
valves are available at plumbing supply or hardware stores. Follow
the manufacturer's instructions for installation of the valves.
Before changing the factory setting on the thermostat, read the
"Temperature Regulation" section in this manual.
Piping, fi ttings, and valves should be installed according to the
installation drawing (Figure 11). If the indoor installation area
is subject to freezing temperatures, the water piping must be
protected by insulation.
Water supply pressure should be around 50 to 60 psi and should
not exceed 80 psi. If this occurs, a pressure reducing valve
should be installed in the cold water inlet line. This should be
placed on the supply to the entire house in order to maintain
equal hot and cold water pressures.
IMPORTANT: Heat cannot be applied to the water fi ttings on the
heater as they may contain nonmetallic parts. If solder connec-
tions are used, solder the pipe to the adapter before attaching the
adapter to the hot and cold water fi ttings.
IMPORTANT: Always use a good grade of joint compound and
be certain that all fi ttings are drawn up tight.
1. Install the water piping and fi tting as shown in
Figure 11. Connect the cold water supply (3/4" NPT)
to the fi tting marked "Cold". Connect the hot water
supply (3/4" NPT) to the fi tting marked "Hot".
IMPORTANT: Some models may contain energy saving heat
traps to prevent the circulation of hot water within the pipes.
Do not remove these inserts.
2. The Installation of dielectric unions in both the hot
and cold water supply lines is recommended for
ease of removing the water heater for service or
replacement.
3.
Install thermostatic mixing valves (temperature limiting
valves) at each point of use (recommended). These valves
reduce the point-of-use temperature of the hot water by
mixing cold and hot water and are readily available. Contact
a licensed plumber or the local plumbing authority.
4. If installing the water heater in a closed water
system, install a relief valve or expansion tank in
the cold water line as specifi ed under "Closed
System/Thermal Expansion".
5. Install a shut-off valve in the cold water inlet line. It
should be located close to the water heater and be
easily accessible. Know the location of this valve
and how to shut off the water to the heater.
FIGURE 11
11