T P Valve Tankless Water Heater

40 gallon water heater keeps leaking from t p valve after using water in house.

T p valve tankless water heater.

Fit an adjustable wrench onto the flat portion of the valve and continue to tighten the valve clockwise. I have a tankless heater ever since i bought the house 1 5 years ago the t p valve has been discharging slightly when you turn off a hot water tap. The valve is called a t p valve or tpr valve for temperature and pressure relief. They wonder if the missing valve makes the tankless water heaters less efficient or prone to break downs.

This valve can be used with all rheem tankless water heater models. Here s an excerpt from that manual. Changed out t p valve twice then resorted to changing entire water heater. Tagaki and others i e.

Every water heater whether gas or electric needs a temperature and pressure relief valve because without one it could begin to leak or even explode. Pressure only valves such as cash acme fwl 2 zurn p3000br or watts 174a would be required. Gas fired tankless water heaters will usually require a pressure relief valve while electric on demand water heaters may not. We are here to tell you that it is okay for some water heaters to be without temperature pressure relief valves.

Now the t p valve is leaking constant when you use hot water. Brand new water heater started leaking from t read more. The takagi gas fired tankless water heater manual specifies a pressure relief valve on the hot water outlet. The t and p valve which is located on the.

The ap12993c is the equivalent version with the watts 3 4 inch pressure relief valve model 3l 150. On the side or top of your water heater tank is a valve connected to a metal or plastic discharge tube pointing downward. The valve s sole purpose is to keep the pressure and temperature inside of a tank below certain levels. I was told this is normal.

If all goes well a tpr valve never gets used except during testing. Also known as the temperature and pressure valve this device automatically releases excess pressure in your water heater system. Screw the valve into the port on the lower edge of the tankless heater by hand.