Honeywell Gas solenoid valves VR4601AB1067U

Honeywell VR4601AB1067U is a gas solenoid valve designed for safe regulation of gas flow in domestic heating systems, boilers, and water heaters. It features a flanged connection, a maximum inlet pressure of 60 mbar, and a flow capacity of 4.2 m³/h at a pressure drop of 3 mbar. The valve includes an internal fine-mesh filter, a back pressure of 50 mbar on the first valve, and a coil with top connection. It is certified to CE standards and fits VIESSMANN Vitogas 100 boilers type GC1 18-60 kW (OEM equivalent 7820911). The valve has a 2.8 mm output aperture and a regulator spring that can be locked.

Parts of this type are selected by matching the connection thread, inlet pressure range, flow capacity, and compatibility with the boiler model. Before ordering, verify the valve's flange size, maximum inlet pressure, and flow rating against the system requirements. The valve must be installed in the correct orientation, typically with the actuator on top, and the electrical connections must match the coil type. Ensure the gas type and pressure are within the valve's specifications.

Common failures include the valve failing to open or close properly, leading to no gas flow or gas leakage. Symptoms may include the burner not igniting, intermittent operation, or a complete shutdown of the heating system. Check for electrical continuity in the coil, proper voltage supply, and any debris blocking the internal filter or valve seat. Also, inspect for physical damage or wear on the valve components.