| 1 | 75427 / 173---148 | Burner | | |
| 2 | 173991 | Main heat exchanger + O rings | | |
| 3 | 173993 | Recuperator | | |
| 4a | 75692 / 169---069 | Injectors for natural gas | | |
| 4b | E01---156 | Injectors for LPG | | |
| 5 | 173983 / H21---048 | Fan | | |
| 6 | 172611 / E90---627 | Gas valve + gaskets | | |
| 7 | 172611 / 169---127 | Air pressure switch | | |
| 8 | 172494 / E83---013 | Safety valve | | |
| 9 | 174017 | Electronic regulation p.c.b. | | |
| 10 | 172548 / E83---142 | Full sequence ignition device | | |
| 11 | 75419 / E00---684 | Primary circuit flow switch | | |
| 12 | 172503 / E83---082 | DHW flow switch | | |
| 13 | 75421/ E00---688 | Main. flow switch membrane | | |
| 14 | 172512 / E83---101 | Overheat thermostat | | |
| 15 | 75460 / E57---048 | DHW heat exchanger + O rings | | |
| 16 | 173813 / H20---986 | Automatic air purger valve | | |
| 17 | 174004 | Pump + O rings | | |
| 18 | 172551 / E83---145 | Temperature ---pressure gauge | | |
| 19 | 173985 / H21---064 | Flue thermostat | | |
| 20 | 173985 / E83---086 | Three way diverter valve (electric actuator) | | |
| 21 | 173986 / H21---060 | Sealed chamber gaskets kit | | |
| 22 | 172502 / E83---081 | Magnetic flow switch and filter | | |
| 23 | 172533 / E83---127 | Ignition electrode --- left | | |
| 24 | 172532 / E83---126 | Ignition electrode --- right | | |
| 25 | 172531 / E83---122 | Detection electrode | | |
| 26 | 170977 / E69---243 | Window (glass + rubber frame) | | |
| 27 | 75514 / 169---141 | 1/2â flat gasket | | |
| 28 | 75415 / 169---033 | 3/4â flat gasket | | |
| 29 | 172562 / 169---083 | Fuse 1,6 A T | | |
| 30 | 172496 / 164---026 | Temperature probe (main or DHW circuit) | | |
| 31 | 173987 / H21---052 | Side case panel | | |
| 32 | 173988 | Control panel door | | |
| 33 | 173989 | Front case panel | | |
