Pay in 4 interest-free payments of $63.18 Learn more
Ships within 48 hours · Estimated delivery Sep 8 - Sep 13
For technicians managing older thermostatic radiator valve (TRV) installations
Operating at 1075 RPM on a 208-230V single-phase circuit
or alarms within a VAV system
ensuring optimal heat retention and preventing thermal damage to external surfaces
Viessmann 7134328 Circuit Board Refrigerant For technicians managing older thermostaticThe Viessmann 7134328 is a critical VR20 control board specifically engineered for Vitodens 200 WB2 and WB2A series gas condensing boilers. Functioning as a high precision communication interface, this replacement circuit board facilitates data transfer between the LGM 29 burner control unit and the main system sensors. It is essential for managing boiler fault codes such as A1, A4, and outdoor temperature sensor malfunctions. Field replacement