Viessmann 7828718 Electrode Block 321894-709 ensuring seamless integration into existing

ensuring seamless integration into existing 1" NPT piping configurations

This replacement gas valve operates on a 24V signal and is factory-calibrated for Natural Gas applications with a 3

protecting the integrated furnace control board from voltage spikes

As a Source 1 technical replacement

making it a direct-fit solution for technicians performing field service on heat pumps and air conditioning systems

Viessmann 7828718 Electrode Block 321894-709 ensuring seamless integration into existingThe Viessmann 7828718 Electrode Block is a critical genuine OEM ignition and ionization electrode assembly specifically engineered for Viessmann WB1B and B1xA series boilers. As a dual function component, it integrates both the boiler ignition electrode for consistent burner start up and the ionization flame sensor for real time flame rectifying and monitoring. Technicians servicing Vitodens 100 W units will find this block essential for resolving