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verify the sensing bulb length and shank thread size to ensure a leak-free mechanical fit
this manual reset sensor is a high-limit safety device that opens the SPST (Single Pole Single Throw) circuit if it detects excessive heat or flame spillage outside the heat exchanger
it offers exact physical and electrical compatibility with Lennox G40
maintaining system signal integrity depends on utilizing specified leads that match factory gauge and insulation standards
Using it as a universal kit is not recommended
Viessmann 7822897 Sensor 319847-401 verify the sensing bulb lengthThe Viessmann 7822897 Sensor is a critical differential pressure sensor designed for precise monitoring and control within Vitodens series condensing boilers. As a technician, you understand that maintaining accurate pressure transducer readings is vital for the combustion control system to modulate fan speed and gas flow effectively. This OEM Viessmann replacement part ensures the boiler operates within safe pneumatic parameters, preventing fault