Resideo has launched its latest VC water valve range, designed with additional wiring functionality and the ability to handle a higher-pressure differential of bars. This makes them ideal for larger heating systems with higher flow rates or installations with more powerful circulation pumps. You may already be familiar with the VC range as they have been used in combination boilers for many years.
5m and 6m pumps are standard for many installations. However, installers fitting a heating system in a larger property with a hot water cylinder and circa 30 radiators, may choose 7m or 8m higher pressure pumps to ensure the effective circulation of water through the system. This increased pressure can cause the issue of heated water seeping through standard domestic zone valves – running into radiators – when water was only called for by the hot water cylinder. The same issue applies to heat pump installations where the low heat requires a bigger circulation pump selection to push the water around the circuit.
To ensure no water can pass through the valve when in the closed position, the new heavy-duty VC valve from Resideo has been designed with a robust, linear mechanism that moves up and down to open and close the valve and can resist up to 4 bars of pressure without leakage.
The VC valve also comes with various wiring options to assist with a greater range of applications. This allows greater flexibility for installers wanting to connect the valve to the thermostat, boiler, and even a heat pump. It can also add a priority route where the hot water is heated before the radiators so that it works effectively in conjunction with the service called for.