Key Benefits OEM Compatibility: Specifically engineered for a perfect fit in Liebert precision cooling cabinets

making it the standard replacement for powering thermostats

Cast Iron/Bronze Construction: Built with high-grade materials to resist corrosion in closed-loop configurations

it provides the critical seal required between the valve assembly and the float chamber

and more granular scheduling options compared to legacy FocusPRO 6000 series units

Viessmann 7861491 Flame Sensor R-22 Key Benefits OEM Compatibility: SpecificallyWhen you're troubleshooting a Viessmann Vitodens unit that keeps hitting an F2 flame loss or L2 ignition lockout, your first check should be the Viessmann 7861491 Flame Sensor. Also known as an ionization electrode, this nickel iron (NiFe) component is the backbone of the flame rectification circuit. Its engineered specifically for CM2 series boilers, including models like the CM20490, CM20491, and CM20493. This isn't just a dummy rod; its a precision