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S ESAM3240
WA 1220 AA 7108282800 FRIAC
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WTG86260EE/08 BOSCH
vaso expansion caldera vaillant 181022 equipos de refrigeración S ESAM3240The 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
