| 1 | | Front panel | | |
| 2 | | Viessmann logo | | |
| 3 | | Locking elements | | |
| 4 | | Diaphragm grommet DN 60 | | |
| 5 | | Air box floor | | |
| 6 | | Cover | | |
| 7 | | Cable holders, fitting assembly | | |
| 8 | | Screws, air box floor, fitting assembly (set) | | |
| 1 | | Boiler flue connection | | |
| 2 | | Plug for boiler flue connection | | |
| 3 | | Gasket DN 60 | | |
| 4 | | Flue gasket | | |
| 5 | | Flue gas temperature sensor | | |
| 6 | | Heat exchanger | | |
| 7 | | Thermal insulation block | | |
| 8 | | Condensate hose | | |
| 9 | | Trap | | |
| 10 | | Tee union | | |
| 11 | | Corrugated hose 19 x 400 bend/ferrule | | |
| 12 | | Gas supply pipe | | |
| 13 | | Gasket A 17 x 24 x 2 (5 pce) | | |
| 14 | | Clip Ø 24 | | |
| 15 | | Heat exchanger mounting bracket (set) | | |
| 16 | | O-ring 20.63 x 2.62 (5 pce) | | |
| 17 | | Corrugated hose 19 x 800 with ferrule/bend | | |
| 18 | | Door screws (set) | | |
| 19 | | MatriX cylinder burner | | |
| 1 | | Burner gasket (wearing part) | | |
| 2 | | Thermal insulation ring | | |
| 3 | | Cylinder burner gauze assembly | | |
| 4 | | Burner gauze assembly gasket | | |
| 5 | | Ignition electrode (wearing part) | | |
| 6 | | Ionisation electrode (wearing part) | | |
| 7 | | Gasket, burner door flange (wearing part) | | |
| 8 | | Radial fan | | |
| 9 | | Burner door | | |
| 10 | | Ignition unit | | |
| 11 | | Gasket, ionisation electrode (5 pce) | | |
| 12 | | Gasket, ignition electrode (5 pce) | | |
| 13 | | Blade terminal (10 pce) | | |
| 14 | | Mixture restrictor | | |
| 15 | | Venturi extension | | |
| 16 | | Mounting plate, thermal insulation ring (2 pce) | | |
| 17 | | Gasket DN 50 | | |
| 18 | | Fixing screws | | |
| 1 | | Diaphragm expansion vessel 10 l | | |
| 2 | | Support for diaphragm expansion vessel | | |
| 3 | | Connection line, diaphragm expansion vessel 3/8 x 60 | | |
| 4 | | Clip Ø 8 (5 pce) | | |
| 5 | | Gasket A 10 x 15 x 1.5 (5 pce) | | |
| 6 | | Thermal circuit breaker | | |
| 7 | | Temperature sensor | | |
| 8 | | Air vent valve G 3/8 | | |
| 9 | | Connection pipe HF | | |
| 10 | | Pipe, HR | | |
| 11 | | Profile hose HR | | |
| 12 | | Connection elbow HR | | |
| 13 | | Hose 10 x 1.5 x 1500 | | |
| 14 | | O-ring 20.63 x 2.62 (5 pce) | | |
| 15 | | Diaphragm grommet, pressure gauge | | |
| 16 | | Pipe clip | | |
| 17 | | Pressure gauge | | |
| 18 | | Push-fit connector gasket set (5 pce) | | |
| 19 | | Circular seal washer 8 x 2 (5 pce) | | |
| 20 | | Clip Ø 10 (5 pce) | | |
| 21 | | Safety valve 3 bar | | |
| 22 | | Spring clip DN 25 (5 pce) | | |
| 23 | | Hydraulic assembly, system boiler (see page 122) | | |
| 1 | | Diaphragm expansion vessel 10 l | | |
| 2 | | Support for diaphragm expansion vessel | | |
| 3 | | Connection line, diaphragm expansion vessel 3/8 x 60 | | |
| 4 | | Clip Ø 8 (5 pce) | | |
| 5 | | Gasket A 10 x 15 x 1.5 (5 pce) | | |
| 6 | | Thermal circuit breaker | | |
| 7 | | Temperature sensor | | |
| 8 | | Air vent valve G 3/8 | | |
| 9 | | Profile hose HF | | |
| 10 | | Profile hose HR WT | | |
| 11 | | Connection elbow HR | | |
| 12 | | Hose 10 x 1.5 x 1500 | | |
| 13 | | O-ring 20.63 x 2.62 (5 pce) | | |
| 14 | | Diaphragm grommet, pressure gauge | | |
| 15 | | Pressure gauge | | |
| 16 | | Circular seal washer 8 x 2 (5 pce) | | |
| 17 | | Clip Ø 10 (5 pce) | | |
| 18 | | Safety valve 3 bar | | |
| 19 | | Spring clip DN 25 (5 pce) | | |
| 20 | | Spring clip DN 30 | | |
| 21 | | Connection elbow HF | | |
| 22 | | Hydraulic assembly, combi boiler (see page 124) | | |
| 1 | | Air vent valve | | |
| 2 | | Clip Ø 8 (5 pce) | | |
| 3 | | Clip Ø 16 (5 pce) | | |
| 4 | | Stepper motor | | |
| 5 | | Clip Ø 24 | | |
| 6 | | Clip Ø 16 | | |
| 7 | | Bypass line | | |
| 8 | | Circulation pump UPM3 15-75 KM | | |
| 9 | | Hydraulic assembly, system boiler | | |
| 10 | | Bypass controller with overflow valve | | |
| 1 | | Air vent valve | | |
| 2 | | Clip Ø 8 (5 pce) | | |
| 3 | | Clip Ø 16 (5 pce) | | |
| 4 | | Stepper motor | | |
| 5 | | Clip Ø 24 | | |
| 6 | | Clip Ø 16 | | |
| 7 | | Bypass line | | |
| 8 | | Circulation pump UPM3 15-75 KM | | |
| 9 | | Hydraulic assembly, system boiler | | |
| 10 | | Bypass controller | | |
| 11 | | Temperature sensor | | |
| 12 | | Plate heat exchanger insulation board | | |
| 13 | | Temperature sensor NTC | | |
| 14 | | Plate heat exchanger | | |
| 15 | | Plate heat exchanger insulation shell | | |
| 16 | | Gaskets for plate heat exchanger and screw | | |
| 17 | | Flow sensor | | |
| 18 | | Flow limiter | | |
| 19 | | Clip 50 | | |
| 20 | | Expansion vessel | | |
| 1 | | Control unit VBC138-A10.0xx | | |
| 2 | | Casing back panel | | |
| 3 | | Coding card | | |
| 4 | | Fuse 6.3 A (slow), 250 V (10 pce) | | |
| 5 | | Fuse holder 6.3 A (slow) | | |
| 6 | | Vitotronic 100 HC1B programming unit | | |
| 7 | | Vitotronic 200 HO2B programming unit | | |
| 8 | | LON communication module | | |
| 9 | | PCB adaptor | | |
| 10 | | Cable harness X8/X9/Ion/145/stepper motor | | |
| 11 | | Cable harness 35/100/20/54 | | |
| 12 | | Power cable | | |
| 13 | | Mating plug | | |
| 14 | | Cable ties (10 pce) | | |
| 15 | | Locking bolts, left and right | | |
| 17 | | Wireless outside temperature sensor | | |
| 18 | | Outside temperature sensor NTC | | |
| 19 | | Catch, back panel | | |
| 20 | | Internal H1 extension | | |
| 21 | | Internal H2 extension | | |
| 1 | | Touch-up spray paint, white, 150 ml can | | |
| 2 | | Touch-up paint stick, white | | |
| 3 | | Special grease | | |
| 4 | | Installation and service instructions (HO2B) | | |
| 5 | | Installation and service instructions (HC1B) | | |
| 6 | | Installation and service instructions (HO1B) | | |
| 7 | | Operating instructions (HO2B) | | |
| 8 | | Operating instructions (HC1B) | | |
| 9 | | Operating instructions (HO1B) | | |
