Installation / Operation Instruction Manual

Water Connections continued-

WARNING

For protection against excessive temperatures and pressure, install

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 shall be marked with a maximum set pressure, not to

exceed the maximum working pressure of the water 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 on the water heater, which is provided for this purpose.

Note: Some models may already be equipped or supplied with a

combination temperature and pressure relief valves. Verify that this

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 with one that does. Follow the

installation instructions provided on this page.

Install a discharge line so that water discharged from the combination

temperature and pressure relief valve will exit within six (6) inches (15.3

cm) above, or any distance below the structural floor and at a location

where dischargers cannot contact any live electrical part. This discharge

line is to be installed complete drainage of both the temperature and

pressure relief valve and the discharge line can occur. 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 between the combination temperature and pressure

relief valve and the tank.