Water Piping System; Piping Installation - Kenmore Elite 153.321161 Use & Care Manual

Water Piping System
Water temperature over 125°F
(52°C) can cause severe burns
instantly resulting in severe injury
or death.
Children, the elderly, and the
physically or mentally disabled
are at highest riskfor scald injury.
Feel water before bathing or
showering.
Temperature limiting valves are
available.
Read instruction manual for safe
temperature setting.
Piping, fittings, and valves should be installed according to the
installation drawing (Figure 10). If the indoor installation area
is subject to freezing temperatures, the water piping must be
properly insulated.
The water supply pressure should not exceed 80 psi. If this
occurs, a pressure reducing valve with a bypass 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 must not be applied to the water fittings on the
heater as they may contain nonmetallic parts. If solder
connections are used, solder the pipe to the adapter
before attaching the adapter to the hot and cold water
fittings.
• Always use a good grade of joint compound
and be certain that all fittings are tight.
IMPORTANT: DO NOT over apply joint compound.
Piping installation
NOTE: To protect against untimely corrosion of hot and cold
water fittings, it is strongly recommended that di-electric
unions or couplings be installed on this water heater when
connected to copper pipe.
1. Install the water piping and fittings as shown in Figure 10.
Connect the cold water supply (3/4" NPT) to the fitting
marked "Cold". Connect the hot water supply (3/4" NPT)
to the fitting marked "Hot".
2. The installation of unions in both the hot and cold water
supply lines are recommended for ease of removing the
water heater for service or replacement.
3. Some local codes may require, and the manufacturer of
this water heater recommends, installing a mixing valve
or an anti-scald device in the domestic hot water line as
shown in Figure 10. 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 for more information.
4. Some local codes may require, and the manufacturer
of this water heater recommends, installing a pressure
reducing valve (PRV) in the cold water inlet line where it
enters the residence as shown in Figure 10.
5. If installing the water heater in a closed water system,
install an expansion tank in the cold water line as specified
under "Closed System/Thermal Expansion."
6. 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.
7. Install a discharge line from the temperature and pressure
relief valve in the opening marked "T & P RELIEF VALVE".
See Figure 12 and the "Temperature and Pressure Relief
Valve" section.)
Massachusetts: Install a vacuum relief in J
cod water ne per secton 19 MGL 142.
_ptional Heat Trap Piping
J_ Union
Temperatpressure ...... Relief dvatve ! _,_- Shut-eft Valve (Hot)
_ c_"_ Untempered Water Outlet
i
'Outlet_ / ;Mixing Valve - Follow the Mixing Valve's
' ' [ Manufacturer's installation Instructions.
"q (Setto 120 ° F)
Discharge Pipe ---czz Tempered Water to Fixtures
(Do Not Cap or Plug) I ._ ! Condensate Drain Lines*
_ _ _2ZZZZZZZI_CoId Water Outlet
DepthMetal Drain Pan 2 1/2 Ill _ /il _ __22----2222-C_ In a closed system, use a
Maximum and i thermal expansion tank.
See "Closed System/
2 Inches wider than , L_ UL Cold \ Thermal Expansion"
the water heater. _,_ L_ (Inlet). k section.
_ (Cold)
Drain Line 3/4 "j / 6" Maximum
ID Minimum Drain Air Gap
* If an adequate drain is not available for the condensate drain lines then a condensate pump must be used. DO NOT discharge the condensate drain
lines into the metal drain pan.
Vacuum Relief Valve
_L....-(when required by local code)
:2_"_ Cold Water
_--2 j_.lnlet Valve
-T--2-_-_ZZZZZ_,_. Cold Water
_X inlet
Pressure Reducing Valve (PRV)
should be installed where the water
supply enters the residence.
When installed PRVs create a
closed water system, a thermal
expansion tank must be installed.
FIGURE 10.
12