Troubleshooting; Start Up Conditions; Closed System/Thermal Expansion; Strange Sounds - Kenmore 153.582400 Use & Care Manual

Start Up Conditions

CLOSED SYSTEM/THERMAL EXPANSION

As water is heated, it expands (thermal expansion). In a closed
system, the volume of water will increase. As the volume of
water increases, there will be a corresponding increase in water
pressure due to thermal expansion. Thermal expansion can
cause premature tank failure (leakage). This type of failure is not
covered under the limited warranty. Thermal expansion can also
cause intermittent temperature-pressure relief valve operation:
water discharged from the valve due to excessive pressure build
up. The temperature-pressure relief valve is not intended for the
constant relief of thermal expansion. This condition is not covered
under the limited warranty.
A properly-sized thermal expansion tank should be installed
on all closed systems to control the harmful effects of thermal
expansion. Thermal expansion tanks are available from Sears
stores and through the Sears Service Centers. Contact the local
plumbing inspector, water supplier and/or the Sears Service
Center for assistance in controlling these situations.
Thermal Expansion Tank Specifi cations
TABLE 2.
Tank
Model
Capacity
Number
In Gallons
Diameter
153.331021 2 8 (203 mm) 12-3/4 (323 mm) 3/4" Male
153.331051 5 11 (279 mm) 14-3/4 (375 mm) 3/4" Male
Expansion Tank Sizing Chart
TABLE 3.
Inlet
Water
Pressure*
Expansion 40psi
Tank
50psi
Capacity
60psi
Needed
70psi
80psi
*Highest recorded inlet water pressure in a 24 hour period or
regulated water pressure.
NOTE: Expansion tanks are pre-charged with a 40 psi air
charge. If the inlet water pressure is higher than 40 psi, the
expansion tank's air pressure must be adjusted to match
that pressure, but must not be higher than 80 psi.

TROUBLESHOOTING

Dimensions
in Inches
Fitting
On Tank
Length
Water Heater Capacity (Gallons)
30 40 50 66
2 2 2 5
2 2 2 5
2 2 5 5
2 2 5 5
2 5 5 5

STRANGE SOUNDS

Pipe
Possible noises due to expansion and contraction of some
metal parts during periods of heat-up and cool-down do not
represent harmful or dangerous conditions.

Operational Conditions

SMELLY WATER

See also "Anode Rod Inspection" on page 20.
In each glass-lined water heater there is installed at least one
anode rod (see parts section) for corrosion protection of the
82
tank. Certain water conditions will cause a reaction between
this rod and the water. The most common complaint associated
5
with the anode rod is one of a "rotten egg smell". This odor is
5
derived from hydrogen sulfi de gas dissolved in the water. The
5
smell is the result of four factors which must all be present for
the odor to develop:
5
5
A. A concentration of sulfate in the supply water.
B. Little or no dissolved oxygen in the water.
C. A sulfate reducing bacteria within the water heater. (This
harmless bacteria is non-toxic to humans.)
D. An excess of active hydrogen in the tank. This is caused by
the corrosion-protective action of the anode.
23
FIGURE 21