| 2 | 998616 / E61 468 | Expansion vessel | | |
| 5 | 573521 / 164 282 | Gasket 3/8" | | |
| 12 | 998077 / E61 475 | O-ring | | |
| 14 | 573520 / 164 225 | Gasket 3/4" | | |
| 16 | 997147 / E25 427 | Motor (3- Way valve) | | |
| 17 | 997077 / E61 429 | Fixing clip (motor) | | |
| 18 | 569236 / 164 338 | Temperature probe (C.H.W.) | | |
| 19 | 998613 / E61 478 | Flow group | | |
| 20 | 571547 / E24 077 | Diaphragm (main flow switch) | | |
| 21 | 998099 / E61 479 | Main circuit flow switch | | |
| 24 | 998940 / E61 479 | Return group | | |
| 25 | 998424 / E61 483 | O-ring | | |
| 26 | 574279 / E25 529 | Gasket | | |
| 27 | 998645 / E61 848 | Spark generator | | |
| 28 | 997089 / E61 485 | Gas valve (SIT 845 SIGMA) | | |
| 33 AB | 998836 / E61 490 | Pump | | |
| 33 CD | 999091 / E61 881 | Pump | | |
| 38 | 999599 | Time clock | | |
| 41 | 998947 / E61 519 | P.C.B. (CMP1-FFI) | | |
| 43 | 999245 / E61 520 | Pressure gauge | | |
| 52AB | 573989 / E61 530 | Air pressure switch | | |
| 52CD | 571651 / E03 818 | Air pressure switch | | |
| 66AB | 999397 | Fan | | |
| 66CD | 998894 / E61 967 | Fan | | |
| 72 | 997206 / E25 425 | Thermostat (overheat) | | |
| 74AB | 998620 | Main exchanger | | |
| 74CD | 998893 / E61 546 | Main exchanger | | |
| 75A | 998618 / E61 547 | Burner 12 ramp (natural gas) | | |
| 75B | 998669 / E61 549 | Burner 12 ramp | LPG | |
| 75C | 998887 / E61 972 | Burner 14 ramp (natural gas) | | |
| 75D | 998939 / E61 974 | Burner 14 ramp | LPG | |
| 76CD | 573295 / E26 657 | Secondary exchanger | | |
| 77 | 573825 / E26 658 | O-ring (secondary exchanger) | | |
| 79 | 573172 /E26 378 | Safety valve (1/2" 3 bar) | | |
| 98 | 998623 / E26 378 | Electrode (Ignition R.H.) | | |
| 99 | 998622 / E61 567 | Electrode (Ignition L.H.) | | |
| 100 | 998624 / E61 569 | Detection electrode | | |
| 311 | 998941 | D.H.W. actuator kit | | |
| 321 | 997029 / E25 582 | Operator coils (SIT SIGMA) | | |
| 331 | 998490 / E61 647 | Central heating by-pass kit | | |
| 332 | 998718 / E61 648 | Heating spring kit | | |
| 333 | 998975 / E61 649 | 3-way spring kit | | |
| 334 | 998974 / E61 650 | Actuator bush | | |
| 351 | 998644 / E61 652 | Gasket (auto air vent) | | |
| 352 | 998643 / E61 654 | Auto air vent | | |
| 353 | 998738 / E61 654 | Gasket (pump head) | | |
| 354 AB | 998961 / E61 660 | Pump head (Gold 15/5) | | |
| 354 CD | 999207 / E62 030 | Pump head | | |
| 371 | 571547 / E24 077 | Diaphragm (main flow switch) | | |
| 372 | 571772 / E24 077 | Magnet (main flow switch) | | |
| 373 | 571771 / E24 076 | Spring (main flow switch) | | |
| 374 | 571770 / E24 075 | Main flow switch top cap | | |
| 375 | 998172 / E61 663 | Main flow switch reed system | | |
| 381 | 998716 / E61 665 | Burner jet 1.25 full kit (Natural gas) | | |
| 382 | 998717 / E61 667 | Burner jet 0.72 full kit | LPG | |
