Kenmore 32986 Owners Manual - Page 23

Start Up Conditions TNERMAL EXPANSmON Property Damage Hazard ° Avoid water heater damage. o Install thermal expansion tank or device if necessary. o Contact qualified installer or service agency. NOTE: Expansion tanks are preocharged with a 40 psi air charge. Bfthe 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. WATER HEATER COLD WATER 0NLET FITTING (3) PRESSURE REDUCING VALVE WITH BY-PASS Water supply systems may, because of such events as high line pressure, frequent cut-offs, the effects of water hammer among others, have installed devices such as pressure reducing valves, check valves, back flow 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 close& As water is heated, it expands (thermal expansion) and closed systems do not allow for the expansion of heated water. {2) PRESSURE GAUGE ruNLET COLD WATER SHUT-OFF RECOMMENDED mNSTALLATION IVERTICAL MOUNTING) WATER HEATER COLD WATER INLET FITTING FLOOR, CEILING JOIST, ETC. The water within the water heater tank expands as it is heated and increases the pressure of the water system. If the relieving point of the water heater's temperature-pressure relief valve is reached, the valve wil! relieve the excess pressure. The temperatureopressure relief valve is not intended for the constant relief of thermal expansion. This is an unacceptable condition and must be corrected. _ STRAPPING _%"(1) EXPANSmON TANK PRESSURE RED(U3)CING VABLYV=EPWASITSH / It is 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. 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 these situations. in controlling Therma! Expansion Tank Specifications Model Number 153.331020 153.331050 Tank Capacity in Gallons 2 5 Dimensions in inches _m Length 8 (203 ram) 12-3/4 (323 ram) 11 (279 mm) 14-3/4 (375 mm) Pipe Fitting On Tank 3/4" Mate 3/4" Mate !2) / PRESSURE GAUGE f #1LETCOLD WATER SHUT-OFF ALTERNATE RECOMMENDED INSTALLATION {HORIZONTAL MOUNTING) STRANGE SOUNDS FIGURE 43. 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. Operationa_ Conditions SMELLY WATER Expansion Tank Capacity Needed Expansion Tank Sizing Chart h[et* Water Pressure 40psi 50psi 60psi 70psi 80psi Water Heater Capacity (Gallons) E 30 40 50 66 82 2 2 2 5 5 2 2 2 5 5 2 2 5 5 5 2 2 5 5 5 2 5 5 5 5 In each glass-lined water heater there is installed one anode rod (see parts section) for corrosion protection of the tank. Certain water conditions will cause a reaction between this rod and the water. The most common complaint associated with the anode rod is one of a "rotten egg smell'L This odor is derived from hydrogen sulfide gas dissolved in the wateE The smell is the result of four factors which must all be present for the odor to develop: A A concentration of sulfate in the supply water. B. Little or no dissolved oxygen in the water. *Highest recorded inlet water pressure regulated water pressure. in a 24 hour period or 23 C. A sulfate harmless reducing bacteria bacteria within the water is nomtoxic to humans.) heater. (This