Viessmann 7819967 Sensor 328140-751 the VT series is intended

the VT series is intended for water and glycol

on rough walls

it is designed to withstand the corrosive environments common in industrial and commercial HVACR systems

this specific model is designed for hot and chilled water systems only

The 511-405-006 is specifically designated for the AHE series

Viessmann 7819967 Sensor 328140-751 the VT series is intendedThe Viessmann 7819967 Sensor is a critical NTC thermistor engineered for precise temperature monitoring in Vitodens 200 W and Vitodens 100 W series condensing boilers. This dual purpose component functions as either Sensor #3 for boiler water temperature or Sensor #5 for Domestic Hot Water (DHW) tank monitoring. Designed to provide high accuracy resistance feedback to the Vitotronic control platform, it ensures the burner modulates correctly based on