Vaillant Auto Air Vent (Aav)
The automatic air vent is a safety mechanism within the central heating unit. They work by using floatation to release accumulated air. As water flows 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.
VAILLANT 0010033857 AUTOMATIC AIR VENT
Part No: 1375348 / MPN: 0010033857
VAILLANT 061707 AUTOMATIC DE-AERATOR
Part No: 1372633 / MPN: 061707
VAIL 0020143508 AUTOMATIC AIR VENT
Part No: 1385956 / MPN: 0020143508
HLIN 20213136 AUTOMATIC AIR VENT
Part No: 2171762 / MPN: 0020213136
VAILLANT 150240 AUTOMATIC BYPASS VALVE, CPL. 2.5M
Part No: 1373907 / MPN: 150240
VAILLANT 0020083522 AIR VENT
Part No: 1383096 / MPN: 0020083522
VAILLANT 150238 AUTOMATIC BYPASS VALVE
Part No: 1373906 / MPN: 150238
VAILLANT 061723 AUTOMATIC DE-AERATOR
Part No: 1375132 / MPN: 061723
VAILLANT 0020107722 BLOW OFF VALVE
Part No: 1383155 / MPN: 0020107722
VAILLANT 140015 DE-AERATION SCREW
Part No: 1376116 / MPN: 140015
VAILLANT 104521 AUTOMATIC AIR VENT - Obsolete - Now Use 1375348
Part No: 1375346 / MPN: 104521
VAILLANT 060051 DE-AERATION VALVE R 1/8
Part No: 1372602 / MPN: 060051