| 1 | 7841736 | Front panel | | |
| 2 | 7836227 | Profiled seal | | |
| 3 | 7839162 | Viessmann logo | | |
| 4 | 7841656 | Wall mounting bracket | | |
| 1 | 7826471 | Gasket DN60 | | |
| 2 | 7826466 | Boiler flue connection | | |
| 3 | 7822742 | Boiler flue connection plug | | |
| 4 | 7828645 | Flue gasket | | |
| 5 | 7822767 | Flue gas temperature sensor | | |
| 6 | 7826461 | Heat exchanger | | |
| 7 | 7841752 | Condensate hose | | |
| 8 | 7841759 | Splash siphon | | |
| 9 | 7841767 | Tee connector Ø 19 | | |
| 10 | 7841760 | Gas connection | | |
| 11 | 7826217 | Gasket A 17 x 24 x 2 (5 pce) | | |
| 12 | 7124461 | Burner | | |
| 13 | 7830016 | Thermal insulation block | | |
| 14 | 7823849 | Heat exchanger mounting (set) | | |
| 15 | 7826214 | O-ring 20.63 x 2.62 (5 pce) | | |
| 16 | 7841876 | Corrugated hose 19 x 155 with ferrule/bend | | |
| 17 | 7841062 | Corrugated hose 19 x 800 with ferrule/bend | | |
| 18 | 7842085 | Ignition transformer | | |
| 1 | 7836177 | Burner gasket Ø 187 | | |
| 2 | 7834987 | Thermal insulation ring | | |
| 3 | 7841764 | Cylinder burner gauze assembly | | |
| 4 | 7826514 | Burner gauze assembly gasket | | |
| 5 | 7837257 | Burner door | | |
| 6 | 7827024 | Gasket, ionisation electrode (5 pce) | | |
| 7 | 7841762 | Ignition/ionisation electrode | | |
| 8 | 7829796 | Burner door flange gasket | | |
| 9 | 7841664 | Centrifugal fan NRG 118 24 kW | | |
| 10 | 7841668 | Gas valve GB-ND 055 E01 | | |
| 11 | 7841745 | Venturi extension | | |
| 12 | 7841672 | Gasket set G20/G31 | | |
| 13 | 7841678 | Conversion kit G20/G31 | | |
| 1 | 7837231 | Diaphragm expansion vessel CRI 8 | | |
| 2 | 7841761 | DEV pad | | |
| 3 | 7828002 | Gasket A 10 x 15 x 1.5 (5 pce) | | |
| 4 | 7841773 | DEV connection line G 3/8 | | |
| 5 | 7828639 | Connection elbow HR brass | | |
| 6 | 7841766 | Profile hose HR | | |
| 7 | 7827429 | Spring clip DN25 (5 pce) | | |
| 8 | 7828759 | Clip Ø 10 (5 pce) | | |
| 9 | 7827425 | Clip Ø 8 | | |
| 10 | 7826214 | O-ring 20.63 x 2.62 (5 pce) | | |
| 11 | 7819967 | Temperature sensor | | |
| 12 | 7831409 | Circular seal washer 8 x 2 (5 pce) | | |
| 13 | 7841765 | Profile hose HF | | |
| 14 | 7834985 | Pressure gauge | | |
| 15 | 7825487 | Thermal circuit breaker | | |
| 16 | 7838128 | Connection elbow HF | | |
| 17 | 7124530 | Grundfos hydraulics | | |
| 18 | 7838958 | Spring clip DN30 | | |
| 1 | 7841809 | Flow casing EU1 | | |
| 2 | 7836553 | Temperature sensor | | |
| 3 | 7829297 | Expansion tank | | |
| 4 | 7831415 | O-ring 19.8 x 3.6 (5 pce) | | |
| 5 | 7831407 | O-ring 16 x 3 (5 pce) | | |
| 6 | 7836270 | Clip Ø 8 narrow (5 pce) | | |
| 8 | 7841770 | Plate heat exchanger | | |
| 9 | 7828741 | Circulation pump motor | | |
| 10 | 7841820 | Return casing | | |
| 11 | 7841821 | Flow limiter | | |
| 12 | 7841824 | Stepper motor | | |
| 15 | 7828750 | Air vent valve | | |
| 16 | 7841830 | Flow sensor | | |
| 18 | 7841816 | Clip Ø 8 | | |
| 19 | 7841831 | Clip Ø 16 | | |
| 20 | 7841775 | Connection elbow | | |
| 23 | 7841771 | Air box floor | | |
| 25 | 7841777 | Dummy adaptor, time switch | | |
| 30 | 7841767 | Tee connector Ø 19 | | |
| 1 | 7841887 | Programming unit | | |
| 2 | 7841888 | Burner control unit | | |
| 3 | 7841880 | Cable harness X1/X17/stepper motor | | |
| 4 | 7841881 | Cable harness 100/35/54/ion | | |
| 5 | 7841882 | Cable harness, connecting cable X21/GFA/programming unit | | |
| 6 | 7841883 | Outside temperature sensor lead | | |
| 7 | 7841884 | Heating circuit pump connecting cable 20 | | |
| 8 | 7841885 | PWM BUS | | |
| 9 | 7841886 | Power cable | | |
| 1 | 7822681 | Touch-up spray paint, Vitowhite, 150 ml can | | |
| 2 | 7822682 | Touch-up paint stick, Vitowhite | | |
| 3 | 7819602 | Special grease | | |
| 4 | 5848875 | Operating instructions | | |
| 5 | 5583985 | Installation and service instructions | | |
