The Belimo ZG-R01 Resistor is a critical field accessory designed to provide seamless signal conversion for HVAC control systems

this kit contains a quad ring

leak-proof interface without the need for additional adapters

using this 440V unit for a 370V application)

Can I use a shorter insert if the 7-inch isn't available

Rheem-Ruud SP20172 Sensor Kit The Belimo ZG-R01 Resistor isThe Rheem Ruud SP20172 Sensor Kit is the essential OEM replacement for managing flammable vapor ignition resistance (FVIR) in gas fired water heaters. Designed as a direct supersession for AP13447 3, this flammable vapor sensor (FVS) monitors the environment for volatile substances, triggering a safe shutdown via the gas control valve if high concentrations are detected. A common indicator for a malfunctioning or tripped sensor is the seven flash