Kenmore 153.338073, 153.338003 Temperature-PressureRelief Valve, Typical Installation Figure

Figure 15 shows the typical attachment of the water piping to the water heater. The water heater is equipped with 1” NPT (75 gallon models) or 1.25” NPT (100 gallon models) water connections.

TYPICAL INSTALLATION

FIGURE 15.

NOTE: If using copper tubing, solder tubing to an adapter before attaching the adapter to the water connections. Do not solder the water lines directly to the water connections on the tank. It will harm the dip tube and damage the tank.

•Look at the top cover of the water heater. The water outlet is marked “HOT”. Put two or three turns of teflon tape around the exposed end of the NPT threaded nipple. Connect the hot water pipe to the hot water outlet on the water heater. Please note that adapters may be needed to match existing piping.

•Look at the top of the water heater. The cold water inlet is marked “COLD”. Put two or three turns of teflon tape around the exposed end of the NPT threaded nipple. Connect the

cold water pipe to the cold water inlet of the water heater. Please note that adapters may be needed to match existing piping.

NOTE: This water heater is super 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.

Temperature-Pressure Relief Valve

This heater is provided with a properly certified combination temperature - pressure relief valve by the manufacturer.

The valve is certified by a nationally recognized testing laboratory that maintains periodic inspection of production of listed equipment of materials as meeting the requirements for Relief Valves and Automatic Gas Shut-off Devices for Hot Water Supply Systems, ANSI Z21.22 and the code requirements of ASME.

If replaced, the valve must meet the requirements of local codes, but not less than a combination temperature and pressure relief valve certified as indicated in the above paragraph.

The valve must be marked with a maximum set pressure not to exceed the marked hydrostatic working pressure of the water heater (150 psi = 1,035kPa) and a discharge capacity not less than the water heater input rate as shown on the model rating plate.

For safe operation of the water heater, the relief valve must not be removed from its designated opening nor plugged.

The temperature-pressure relief valve must be installed directly into the fitting of the water heater designed for the relief valve. Position the valve downward and provide tubing so that any discharge will exit only within 6 inches (153 mm) above, or at any distance below the structural floor, see Figure 16. Be certain that no contact is made with any live electrical part. The discharge opening must not be blocked or reduced in size under any circumstances. Excessive length, over 30 feet (9.14 m), or use of more than four elbows can cause restriction and reduce the discharge capacity of the valve.

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