| 1 | BI1313 100 | Burner | | |
| 2 | BI1462 100 | Expansion vessel | | |
| 3 | BI1462 101 | Condensing heat exchanger | | |
| 4 | BI1313 102 | Fan | | |
| 5 | BI1313 103 | Gas valve | | |
| 6 | BI1181 100 / H50 --- 189 | Safety valve | | |
| 7 | BI2035 100 | Main Electronic control/ignition p.c.b | | |
| 8 | BI2035 101 | Control panel electronic p.c.b | | |
| 9 | BI1181 122 / H22 --- 543 | D.h.w. heat exchanger | | |
| 10 | BI1462 103 | Pump | | |
| 11 | BI1442 106 | Temperature probe (main circuit) | | |
| 12 | KI1042 107 / 169---010 | D.h.w. flow switch | | |
| 13 | BI1351 118 | Primary circuit pressure switch | | |
| 14 | BI1351 108 | Three way diverter valve (electric actuator) | | |
| 15 | BI1172 105 / E83---101 | Overheat thermostat | | |
| 16 | BI1432 102 / H58 --- 661 | Flue temperature probe NTC | | |
| 17 | BI1165 112 / E23---792 | Fuse 2 AF | | |
| 18 | KI1042 501 | Temperature probe ( D.h.w. circuit) | | |
| 19 | BI1313 104 | Detection electrode | | |
| 20 | BI1313 105 | Ignition electrode | | |
| 21 | BI1695 101 | Pressure gauge | | |
| 22 | BI1462 104 | Condensate trap | | |
