VA Vorrangumschaltventil Vaillant-Nr. 014631 Verwendbar für VC 105 E VC 105/2 E VC 107 E VC 166+206+256 E VC 194 XE-C VC 194/2 XE-C VC 195 E-C VC 195/2 E-C VC 204+254 XE VC 204+254/2 XE VC 205+255 E VC 205+255/2 E VC 64+104 XE VC 64+104/2 XE VC 66+106 E VCW 194 XE-C VCW 194/2 XE-C VCW 195 E-C VCW 195/2 E-C VCW 204+254 XE VCW 204+254/2 XE VCW 205+255 E VCW 205+255/2 E VCW 206+256 E