vailant ecoplus 28

Hi all, Would be greatly appreciated if you could help me with this: I have connected the cables in this order (single channel receiver). BDR91 N to Hive N BDR91 L to Hive L BDR91 A to Hive 2 BDR91 B to Hive 3 In the application/thermostat, the receiver does kick off when the central...