| 1 | 573294 / E25 417 | Expansion vessel | | |
| 7 | 573520 / 164 225 | Gasket 3/4" | | |
| 8 | 569236 / 164 338 | Temperature probe (C.H.W.) | | |
| 11 | 997147 / E25 427 | Motor (3-way valve) | | |
| 12 | 997077 / E25 429 | Fixing clip (motor) | | |
| 13 | 998127 | Flow group | | |
| 15 | 571438 | Gas valve | | |
| 20 | 998802 | Micro switch set (main flow & D.H.W.) | | |
| 21 | 998144 | Return group | | |
| 22 | 573727 / 378 814 | Manual vent cock | | |
| 23 | 573172 / E26 378 | Safety valve 1/2" 3 bar) | | |
| 24 | 573528 / 164 229 | Gasket 1/2" | | |
| 30 | 997207 / E26 819 | Time clock | | |
| 38 | 571649 / E25 437 | Pressure gauge | | |
| 41 | 998765 | P.C.B. (display) | | |
| 42 | 569390 / 164 261 | Gasket 1/4" | | |
| 62 | 998672 | Electrode (ignition/detection) | | |
| 64 | 998668 | Burner | | |
| 70 | 998459 | Electrode cable (resistive) | | |
| 72 | 998889 | Fan cable & sensor | | |
| 73 | 998888 | Fan | | |
| 75 | 998651 | Injector (G20) | | |
| 78 | 998077 | O-ring gasket | | |
| 80 | 998894 / E26 657 | Secondary exchanger (p-type 27kW) | | |
| 81 | 997206 / E26 658 | O-ring (secondary exchanger) | | |
| 83 | 997151 / E25 518 | Pump | | |
| 84 | 569387 / 164 230 | Gasket 1" | | |
| 87 | 573521 / 164 282 | Gasket 3/8" | | |
| 89 | 564264 / 379 079 | Auto air vent | | |
| 90 | 998791 | Condensate Trap | | |
| 91 | 998792 | Cap (trap filling) | | |
| 92 | 573768 | Gasket (airtight - condensate trap) | | |
| 97 | 998801 | P.C.B. (main) | | |
| 106 | 998670 | Main exchanger (aluminium) | | |
| 311 | 571444 / E25 581 | D.H.W. actuator Kit | | |
| 312 | 571441 | Heating pressure switch kit | | |
| 313 | 574248 | Pressure cover | | |
| 331 | 998490 | Central heating by-pass kit | | |
| 332 | 571987 | D.H.W. pressure switch kit | | |
| 333 | 571441 | Heating pressure switch kit | | |
| 334 | 574248 | Pressure cover | | |
| 335 | 571447 / E24 077 | 3-way spring kit | | |
| 336 | 998013 | Heating actuator bush | | |
