This ignition module features a 30-second pre-purge cycle and a 4-second Trial for Ignition (TFI)

Operating at 575V with a 1/2 HP output

Most 0171M00003S assemblies come with the necessary mounting hardware or gaskets

and cooling towers where a 460V 1PH motor is required for fan propulsion

2 mm (1/4")

Viessmann 7828718 Electrode Block R-407A This ignition module features aThe 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