vaso expansion caldera vaillant 181022 ranco FI 7 874 SP IX

FI 7 874 SP IX A 859991021580

The 262900074 heating element is the original replacement circular heating element (100W

Durabilidad superior: Materiales resistentes al uso intensivo y al desgaste

Moving air heating

Inlet: ø 24mm

vaso expansion caldera vaillant 181022 ranco FI 7 874 SP IXThe expansion vessel is a fundamental component in Vaillant boilers that allows absorption of pressure variations caused by the expansion of water when heated. This model, with a 12 liter capacity and quick connection, ensures the proper functioning of the hydraulic system, preventing damage to the boiler and leaks. What problem does this replacement part solve? Unstable pressure in the boiler causing the pressure switch to trip. Water loss due to