Water Piping - Kenmore 153.338071 Owner's Manual

OUTLET AHR DUCT
vaHve, shah be used at the hot water taps used by these peopHe
or at the water heater. Mixing vaHves are avaHabHe at pHumbing
suppHy or hardware stores, see Figure 14 bellow. VaHves for
reducing point of use temperature by mixing coHdand hot water
are also available. Follow manufacturer's instructions for
installation of the valves. Before changing the factory setting
on the thermostat, read the Temperature Regulation section in
this manual.
INLET ASR DUCT
FIGURE 13.
Louvers and Grilles: Hncalculating free area, consideration
shall be given to the blocking effect of louvers, grilles or
screens protecting openings. Screens used shall not be
smaller than 1/4 inch (6.4 ram) mesh. Hf t he free area through
a design of louver or grille is known, it should be used in
calculating the size opening required to provide the free
area specified. Hfthe design and free area is not known, it
may be assumed that wood louvers will be 20-25 percent
free area and metal louvers and grilles will have 60-75
percent free area. Louvers and grilles shall be fixed in the
open position or interlocked with the equipment so that they
are opened automatically during equipment operation.
Special Conditions Created by Mechanical Exhausting or
Fireplaces: operation of exhaust fans, ventilation systems,
clothes dryers or fireplaces may create conditions requiring
special attention to avoid unsatisfactory operation of installed
gas utilization equipment.
Water Piping
Water temperature over 125°F
(52°0) can cause severe burns
instantly resulting in severe iniury
or death.
Children, eHderly, and the
physicaHly or mentaIHy disabHed
are at highest riskfor scald injury.
Feel water before bathing or
showering.
Temperature limiting vaHves are
available.
Read instruction manual for safe
temperature setting.
HOTTER WATER CAN SCALD:
Water heaters are intended to produce hot water. Water heated
to a temperature which wiHH satisfy space heating, cHothes
washing, dish washing, cHeaning and other sanitizing needs
can scaHd and permanentHy injure you upon contact. Some
peopHe are more HikeHy to be permanentHy injured by hot water
than others. These incHude the eHderHy, c hiHdren, the infirm, or
physicaHHy/mentaHHy h andicapped. Hfanyone using hot water in
your home fits into one of these groups or if there is a HocaH
code or state Hawrequiring a certain temperature water at the
hot water tap, then you must take speciaH precautions. Hn
addition to using the Howest possibHe temperature setting that
satisfies your hot water needs, a means such as a *mixing
*MHXHNG HOT WATER
VALVE OUTLET ON
WATER HEATER
WATER HEATER
NGURE 14.
Toxic Chemicam Hazard
Do not connect to non-potable water system.
12
This water heater shall not be connected to any heating systems
or component(s) used with a non-potable water heating
appliance.
AII piping components connected to this unit for space heating
applications shall be suitable for use with potable water.
Toxic chemicals, such as those used for boiler treatment shalI
not be introduced into this system.
Water supply systems may, because of such events as high
line pressure, frequent cut-offs or the effects of water hammer
among others, have installed devices such as pressure
reducing valves, check valves, back ftow preventers, etc. to
control these types of problems. When these devices are not
equipped with an internal by-pass, and no other measures are
taken, the devices cause the water system to be closed. As
water is heated, it expands (thermal expansion) and closed
systems do not allow for the expansion of heated water.
The water within the water heater tank expands as it is heated
and increases the pressure of the water system. Hfthe relieving
point of the water heater's temperature-pressure relief valve is
reached, the valve wilI relieve the excess pressure. The
temperature-pressure relief vaBve is not intended for the
constant relief of thermal expansion. This is an unacceptable
condition and must be corrected. Htis recommended that any
devices installed which could create a closed system have a
by-pass and/or the system have an expansion tank to relieve
the pressure built by thermal expansion in the water system.
Refer to the T, h errnal Expansion section under Troubleshooting
Guide or contact local plumbing authority or local Sears Service
Center on how to control this situation.
NOTE: To protect against untimely corrosion of hot and cored
water fittings, it is strongly recommended that di-electric
unions or couplings be installed on this water heater when
connected to copper pipe.