Worcester Auto Air Vent (Aav)
The automatic air vent is a safety device within the central heating unit. They work by using buoyancy to release an accumulation of air. As water circulates through the heating/cooling system, a float within the automatic air vent opens or closes depending on the water level. If the system is full of water, the float will be pushed to the top and the vent will be closed until the water level drops.
Worcester Bosch 87161064450 Auto Air Vent - Greenstar/CDi/GR8300iW/GR8700iW
Part No: 1014917 / MPN: 87161064450
Worcester Bosch 87161405000 3/8" Automatic Air Vent - SS Kit - CDi/Greenstar
Part No: 1017365 / MPN: 87161405000
