Replacing the older 100-402 or mercury-based Econostat models

It maintains the same 24V furnace gas valve footprint and wiring configuration for fast field installation

this manifold assembly is supplied as the pipe and support structure

For contractors performing HVAC blower motor repair

Precisely sized for 8-inch shell housings for a secure

Viessmann 7818363 Ignition Electrode Els PW 29614 Replacing the older 100-402 orFor service technicians maintaining high capacity condensing units, the Viessmann 7818363 Ignition Electrode is the specific OEM replacement part required for Vitodens 200 WB2 Series boilers, specifically the WB2A 44 and WB2A 60 (44kW and 60kW) models. This high temperature electrode is engineered to sustain the precise spark gap necessary for reliable burner ignition within the Inox Radial heat exchanger assembly. Given the high demand cycling of the