T P Valve Tankless Water Heater

Pressure only valves such as cash acme fwl 2 zurn p3000br or watts 174a would be required.

T p valve tankless water heater.

So consult the manufacturer s installation manual. The t and p valve which is located on the. If all goes well a tpr valve never gets used except during testing. Here s an excerpt from that manual.

The takagi gas fired tankless water heater manual specifies a pressure relief valve on the hot water outlet. Now the t p valve is leaking constant when you use hot water. The valve is called a t p valve or tpr valve for temperature and pressure relief. 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.

We are here to tell you that it is okay for some water heaters to be without temperature pressure relief valves. Brand new water heater started leaking from t read more. The ap12993c is the equivalent version with the watts 3 4 inch pressure relief valve model 3l 150. I was told this is normal.

Bosch noritz etc require a pressure only relief valve on the hot water output. The valve s sole purpose is to keep the pressure and temperature inside of a tank below certain levels. 40 gallon water heater keeps leaking from t p valve after using water in house. Fit an adjustable wrench onto the flat portion of the valve and continue to tighten the valve clockwise.

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. Also known as the temperature and pressure valve this device automatically releases excess pressure in your water heater system. On the side or top of your water heater tank is a valve connected to a metal or plastic discharge tube pointing downward.

The tankless water heater should have been installed only by a qualified tagaki approved installer so it should be proper. Gas fired tankless water heaters will usually require a pressure relief valve while electric on demand water heaters may not. This valve can be used with all rheem tankless water heater models.