Install Instructions

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 of the Standard for Relief Valves and Automatic

Gas Shutoff Devices for Hot Water Supply Systems, ANS Z21.22 or the

Standard CAN1-4.4. Temperature and Pressure 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 with a maximum set pressure not to exceed the

maximum working pressure of the water heater. The combination

temperature and pressure relief valve must also have an hourly rated

temperature steam BTU discharge capacity not less than the hourly 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 with a

combination temperature and pressure relief valve. Verify that the

combination temperature and pressure relief valve is in compliance 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 above on this page.

Install a discharge line so that water discharged from the combination

temperature and pressure relief valve will exit within 6 in. (15.2 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 combination 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 clearance of 4 in. (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.