Featuring 3/8" ODF solder connections and a 1/2" port

terminal extensions

ready for integration into the existing air handler

since this is a mechanical spring wound timer

Viessmann 7436069 Control Module 321142-301 Featuring 3/8" ODF solder connectionsIf you are servicing a Vitodens 200 W WB2B series boiler, the Viessmann 7436069 Control Module is the designated Power Pump Control Module WB2B v2 required to manage critical hydronic circulation. This 120V, single phase HVAC replacement part is engineered to coordinate power distribution and pump logic, ensuring the system responds accurately to heating demands while maintaining high efficiency water flow. It interfaces directly with the boiler's