| 2 | 990683 | Expansion vessel | | |
| 6 | 990664 | Condensate pipe | | |
| 9 | 990658 | Condensate trap (upper) | | |
| 12 | 990695 | 'O' Ring (condensate trap) | | |
| 13 | 990659 | Condensate trap (lower) | | |
| 14 | 990686 | Temperature probe (C.H.) + clips | | |
| 15 | 573727 / 378 814 | Drain valve | | |
| 17 | 573520 / 164 225 | Gasket 3/4" | | |
| 20 | 998447 | Safety valve (1/4" 3 bar) | | |
| 21 | 569390 / 164 261 | Gasket 1/4" | | |
| 22 | 995903 | Low water pressure switch | | |
| 25 | 990682 | Gas valve (Sigma 848) | | |
| 26 | 998809 | Auto air vent | | |
| 27 | 990708 | Return manifold | | |
| 28 | 998424 | 'O' Ring (Pump - return manifold) | | |
| 30 | 999100 | Lock washer | | |
| 32 | 999091 | Pump | | |
| 33 | 990692 | Printed circuit board (main) | | |
| 41 | 990693 | Printed circuit board (display) | | |
| 12 | 999245 | Pressure gauge | | |
| 60 | 990656 | Injector | L.P.G. | |
| 60 | 990657 | Injector | N.G | |
| 62 | 990694 | Gasket (fan) | | |
| 63 | 998888 | Fan | | |
| 67 | 998077 | 'O' Ring (by-pass pipe) | | |
| 68 | 998064 | Clip (by-pass pipe) | | |
| 70 | 573521 / 164 282 | Gasket 3/8" | | |
| 73 | 997153 | 'U' clip | | |
| 74 | 997153 | Condensate tray | | |
| 77 | 999497 | Seal (condensate tray) | | |
| 79 | 995983 | Cable (ignition/detection electrode) | | |
| 81 | 995964 | Electrode (ignition/detection) | | |
| 86 | 998680 | Gasket (burner) | | |
| 87 | 998668 | Burner | | |
| 97 | 998517 | Gasket (pressure gauge - pump) | | |
