238-45085-00B - Bradford White

General Info continued-TEMPERATURE AND PRESSURE RELIEF VALVEWARNINGKeep clear of the combination temperature and pressure reliefvalve discharge line outlet. The discharge may be hot enough tocause scald injury. The water is under pressure and may splash.For protection against excessive temperatures and pressure, installtemperature and pressure protective equipment required by localcodes, but not less than a combination temperature and pressurerelief valve certified by a nationally recognized testing laboratorythat maintains periodic inspection of production of listed equipmentor materials as meeting the requirements of the Standard for ReliefValves and Automatic Gas Shutoff Devices for Hot Water SupplySystems, ANSI Z21.22 and the Standard CAN1-4.4 Temperature,Pressure, Temperature and Pressure Relief Valves and VacuumRelief Valves. The combination temperature and pressure reliefvalve must be marked with a maximum set pressure not to exceedthe maximum working pressure of the water heater. Thecombination temperature and pressure relief valve must also havean hourly rated temperature steam BTU discharge capacity not lessthan the hourly rating of the water heater. The suppliedcombination temperature and pressure relief valve, when properlyinstalled and unrestricted, will discharge the maximum inputproduced by a 240°F (115°C) boiler supply temperature. A lowerboiler supply temperature will reduce the input required to bedischarged in the event of excessive potable water temperatures.Install the combination temperature and pressure relief valve intothe opening provided and marked for this purpose on the waterheater.Some models may already be equipped or supplied with atemperature and pressure relief valve. Verify that the combinationtemperature and pressure relief valve complies with local codes. Ifthe temperature and pressure relief valve does not comply withlocal codes, replace it with one that does.12