How does a zone valve work on a hot water heater?
Zone Valves on Indirect-Fired Domestic Hot Water Heaters. A separate loop of piping conducts water from a nearby heating boiler, through the coil in the bottom of the indirect fired water heater tank (thus transferring heat to water in the water heater tank), and back to the heating boiler.
What should I install in my hot water heater?
Make sure you connect each to the correct side of the valve. Install shut-off valves (5) in both the hot water feed and the cold water feed to give you additional control. Close each valve off. Plan where to cut into each pipe and work out the new route for the piping through the shut-off valves to the thermostatic valve.
Why do you need a mixing valve in a hot water heater?
Fitting a thermostatic mixing valve in the hot water line from your water heater will allow you to keep the water heater temperature up to 120 F or slightly above. By doing that, it will kill Legionella. You can then set the water temperature lower in the thermostatic valve to ensure everyone is safe from scalding.
How does a zone valve work on a circulator?
Some zone valves include auxiliary limit switches to determine if the valve is completely open or closed. These systems use these signals to control a pump (circulator) and boiler to start pumping the hot water.
Zone Valves on Indirect-Fired Domestic Hot Water Heaters. A separate loop of piping conducts water from a nearby heating boiler, through the coil in the bottom of the indirect fired water heater tank (thus transferring heat to water in the water heater tank), and back to the heating boiler.
Make sure you connect each to the correct side of the valve. Install shut-off valves (5) in both the hot water feed and the cold water feed to give you additional control. Close each valve off. Plan where to cut into each pipe and work out the new route for the piping through the shut-off valves to the thermostatic valve.
How does a thermostatic valve work in a water heater?
The thermostatic valve has a cold water inlet, a hot water inlet, and an outlet with water at the required temperature, which you can set and lock on the valve. You are going to need to divert the hot water feed (1) and the cold feed (2) to the water heater through the thermostatic valve (4).
Fitting a thermostatic mixing valve in the hot water line from your water heater will allow you to keep the water heater temperature up to 120 F or slightly above. By doing that, it will kill Legionella. You can then set the water temperature lower in the thermostatic valve to ensure everyone is safe from scalding.
