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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 handicapped. 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. In addition to using
the lowest possible temperature setting that satisfi es your hot
water needs, a means such as a mixing valve should be used at
the hot water taps used by these people or at the water heater.
Mixing valves are available at plumbing supply or hardware
stores. Follow manufacturers instructions for installation of the
valves. Before changing the factory setting on the thermostat,
read the Temperature Regulation section in this manual.
(below) for mixing valve usage.
See Figure 8
FIGURE 8.
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.
Figure 8 shows the attachment of the water piping to the water
heater. The water heater is equipped with 3/4" water connections.
If a water heater is installed in a closed water supply system;
such as one having a back-fl ow preventer, check valve, water
meter with a check valve, etc... in the cold water supply; means
must be provided to control thermal expansion. Contact the local
utility or Sears Service Center on how to control this situation .
NOTE: If using copper tubing, solder tubing to an adapter
before attaching the adapter to the water inlet connection.
Do not solder the water supply lines directly to the cold
water inlet. It will harm the dip tube and damage the tank.
NOTE: To protect against untimely corrosion of hot and cold
water fi ttings, it is strongly recommended that di-electric
unions or couplings be installed on this water heater when
connected to copper pipe.
1. Look at the top cover of the water heater. The hot water outlet
is marked hot. Put two or three turns of tefl on tape around
the threaded end of the threaded-to-sweat coupling and
around both ends of the 3/4" threaded nipple. Using fl exible
connectors, connect the hot water pipe to the hot water outlet
of the water heater.
2. Look at the top cover of the water heater. The cold water inlet
is marked cold. Put two or three turns of tefl on tape around
the threaded end of the threaded-to-sweat coupling and
around both ends of the 3/4" threaded nipple. Using fl exible
connectors, connect the cold water pipe to the cold water inlet
of the water heater.
NOTE: Your water heater is insulated to minimize heat
loss from the tank. Further reduction in heat loss can be
accomplished by insulating the hot water lines from the
water heater.
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