Ideal Gas Valve Honeywell VK4115VB1020B

The Honeywell VK4115VB1020B is a gas valve supplied by Ideal under part number 180759. It is the component that regulates and controls the flow of gas to the burner on Ideal Commercial Evomax 2 80KW NG appliances. It forms part of the appliance's gas train and is responsible for opening, modulating and shutting off the gas supply in step with the demand from the controls.

• The appliance fails to light or repeatedly locks out despite a proven ignition and flame detection sequence.
• No gas is present at the burner, or gas flow is intermittent while the controls are calling for heat.
• The burner flame is unstable, weak or inconsistent across the firing range.
• The valve fails to shut off cleanly when demand ends, or the appliance will not modulate correctly.
• Audible clicking, sticking or mechanical resistance from the valve body during operation.

• Confirm the appliance model is the Ideal Commercial Evomax 2 80KW NG.
• Check the existing valve carries the Honeywell VK4115VB1020B designation, or that Ideal part 180759 is the correct number for the appliance.
• Verify the gas type is natural gas, as the valve is specified for NG.
• Gas-carrying components must be fitted and commissioned by a Gas Safe registered engineer.