| 1 | BG1003 101 / E01 167 | 13 ramps burner | | |
| 2a | BG1013 502 / E01 155 | Injectors for natural | | |
| 2b | BG1013 501 / E01 156 | Injectors for LPG | | |
| 3 | BG1013 108 / E01 161 | Gas valve | | |
| 4 | BG1012 110 / E00 690 | Expansion vessel | | |
| 5 | BG1002 102 / E00 691 | Main heat exchanger | | |
| 6 | BG1016 108 / E01 199 | Fan | | |
| 7 | | Air pressure switch | | |
| 8 | BG1001 112 / 379 085 | Safety valve | | |
| 9 | BG1006 503 / E01 189 | Combustion chamber panels | | |
| 10 | BG1015 108 / E01 175 | Electronic regulation p.c.b. | | |
| 11 | BG1015 501 / E01 172 | Full sequence control device | | |
| 12 | | Display circuit board | | |
| 13 | BG1001 101 / E01 204 | D.h.w heat exchanger | | |
| 14a | BG1002 101 / 114 988 | Pump | | |
| 14b | BG1901 104 / E00 699 | Pump (high head) | | |
| 15 | BG1011 105 / E00 684 | Flow switch (main or d.h.w.circuit) | | |
| 16 | BG1011 102 / E01 217 | D.h.w. flow switch membrance | | |
| 17 | BG1011 103 / E00 688 | Main.flow switch membrance | | |
| 18a | BI1001 121 | High limit water pressure switch (2 bar) | | |
| 18b | BI1001 122 | Low limit water pressure switch (0,5 bar) | | |
| 19 | BG1015 111 / 379 086 | Overheat thermostat | | |
| 20 | BG1005 105 / 169 083 | Fuse 1,6 A T | | |
| 21 | BG1001 117 / 164 026 | Temperature probe (main or d.h.w. circuit) | | |
| 22 | BG1002 111 / E01 042 | Automatic air release valve | | |
| 23 | BG1013 104 / E01 164 | Ignition electrode (left) | | |
| 24 | BG1013 104 / E01 165 | lgnition electrode (right) | | |
| 25 | BG1013 102 / E01 166 | Detection electrode | | |
| 26 | | Reset button/lock-out lamp | | |
