Bradford-White Corp 238-44219-00J Manual De Usuario

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14
Installation (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, ANSI 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 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 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 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 above 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 (15.2 
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 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.