Overview connection diagrams
Fig. 115
A1 Mains distributor box
A2 Heat management unit gas condensing module
A3 Burner control unit (BCU)
A4 Programming unit
Connection and wiring diagram
A5 M2IO electronics module (cylinder module)
A7 EM-P1 or EM-EA1 extension
A8 Fuel cell module junction box
A9 SA 191 extension
155