Installation / Operation Instruction Manual

Water Connections continued-

WARNING

For protection against excessive temperatures and pressure, inst all

temperature and pressure protective equipment required by local

codes, but not less than a combination temperature and pressure relief

valve certified by a nationally recognized testing laboratory that

maintains periodic inspection of production of listed equipment or

materials, as meeting the Requirements for Relief Valves and

Automatic Gas Shutoff Devices for Hot Water Supply Systems, ANSI

Z21.22, and the Standard CAN1-4.4 Temperature, Pressure,

Temperature and Pressure Relief Valves and Vacuum Relief Valves.

The combination temperature and pressure relief valve must be

marked w ith a maximum set pressure, not to exceed the maximum

working pressure of the w ater heater. The combination temperature

and pressure relief valve shall also have an hourly rated temperature

steam BTU discharge capacity not less than the hourly input rating of

the water heater.

Install the combination temperature and pressure relief valve into the

opening provided and marked for this purpose on the water heater

Note: Some models may already be equipped or supplied w ith a

combination temperature and pressure relief valve. Verify that the

combination temperature and pressure relief valve complies with local

codes. If the combination temperature and pressure relief valve does

not comply with local codes, replace it w ith one that does. Follow the

installation instructions above on this page.

Install a discharge line so that water discharged from the combination

temperature and pressure relief valve w ill exit within six (6) inches

(15.3 cm) above, or any distance below the structural floor and

cannot contact any live electrical part. The discharge line is to be

installed to allow for complete drainage of both the temperature and

pressure relief valve and the discharge line. The discharge opening

must not be subjected to blockage or freezing. DO NOT thread, plug

or cap the discharge line. It is recommended that a minimum of four

(4) inches (10.2 cm) be provided on the side of the water heater for

servicing and maintenance of the combination temperature and

pressure relief valve.

Do not place a valve betw een the combination temperature and

pressure relief valve and the tank.