| 1 | KI1004 102 / 173 - 148 | Burner | | |
| 2a | BI1213 109 / H74 - 599 | Injectors for natural gas | | |
| 2b | KI1064 506 / 169 - 070 | Injectors for LPG | | |
| 3 | BI1172 103 / E83 - 121 | Expansion vessel | | |
| 4 | BI1262 101 / H20 - 984 | Main heat exchanger | | |
| 5 | BI1536 105 / H74 - 578 | Fan | | |
| 6 | BI1093 105 / H03 - 746 | Gas valve | | |
| 7 | BI1536 103 / H74 - 576 | Air pressure sensor | | |
| 8 | BI1181 100 / H50 - 189 | Safety valve | | |
| 9 | BI1326 100 / E83 - 178 | Combustion chamber side panels | | |
| 10 | BI1326 107 / E83 - 180 | Combustion chamber rear pane | | |
| 11 | BI1536 110 / H74 - 591 | Combustion chamber front panel | | |
| 12 | BI2015 105 | Electronic regulation p.c.b. | | |
| 13 | BI1001 101 / E01 - 204 | D.h.w. heat exchanger | | |
| 14 | BI1552 100 | Pump | | |
| 15 | BI1351 118 / H74 - 545 | Primary circuit pressure switch | | |
| 16 | BI1441 104 / 169 - 010 | D.h.w. flowmeter | | |
| 17 | BI1431 100 / H74 - 535 | Three way diverter valve (electric actuator) | | |
| 18 | BI1172 105 / E83 - 101 | Overheat thermostat | | |
| 19 | BI1536 104 / H74 - 589 | Flue temperature probe NTC | | |
| 20 | BI1295 108 / H44 - 170 | Fuse 3,15 AF | | |
| 21 | KI1042 501 / 169 - 016 | Temperature probe (d.h.w. circuit) | | |
| 22 | BI1442 106 / H74 - 553 | Temperature probe (main circuit) | | |
| 23 | BI1123 101 / E83 - 127 | Ignition electrode (left) | | |
| 24 | BI1123 103 / E83 - 126 | Ignition electrode (right) | | |
| 25 | BI1123 102 / E83 - 122 | Detection electrode | | |
| 26 | BI1475 108 / E83 - 145 | Temperature-pressure gauge | | |
| 27 | BI1442 121 | Recuperator | | |
