Viessmann 7868810 Pressure Switch 318172-701 it operates reliably in pressure

it operates reliably in pressure ranges from 0 to 2 PSI

Designed specifically for standing pilot systems

Should I replace the run capacitor during installation

Replacement frequency depends on local water hardness and run hours

heat-resistant elastomer prevents hardening and cracking under extreme furnace temperatures

Viessmann 7868810 Pressure Switch 318172-701 it operates reliably in pressureThe Viessmann 7868810 Air Pressure Switch is an essential safety component engineered for precision monitoring of combustion air and flue gas flow within high efficiency heating systems. This differential pressure switch integrates a factory calibrated 131A cable assembly, ensuring seamless communication with the burner control unit. By detecting minute changes in static or differential pressure, the 7868810 ensures that the inducer fan is providing