| A01 | 3980D740 | Left Side Panel | | |
| A02 | 3980D750 | Right Side Panel | | |
| A03 | 39848270 | Front Case | | |
| B01 | 39845842 | PCB | | |
| B02 | 39845850 | Facia Panel | | |
| B03 | 39848260 | Wiring Harness | | |
| B04 | 39846290 | Pressure Gauge | | |
| C01 | 3980D760 | Heat Exchanger | | |
| C03 | 39845900 | Rear Heat Ex insulation Panel & Plate | | |
| C04 | 39845890 | Heat Exchanger Sensor | | |
| C05 | 3980D850 | Fan/Burner | | |
| C06 | 39846080 | Heat Exchanger Seals | | |
| C07 | 39846091 | Electrodes | | |
| C08 | 39846100 | Fan PCB | | |
| C09 | 39846110 | Air Silencer | | |
| C10 | 39820900 | Pump | | |
| C11 | 39818220 | Auto Air Vent | | |
| C12 | 39818260 | Low Water Pressure Sensor | | |
| C13 | 39818270 | Safety Valve | | |
| C14 | 39846250 | Expansion Vessel | | |
| C15 | 39846120 | By pass Valve | | |
| C16 | 39846130 | Flow Meter | | |
| C17 | 39812310 | DHW Filter | | |
| C19 | 39819550 | Combined Sensor | | |
| C20 | 39810220 | Return Sensor | | |
| C21 | 39810220 | DHW Sensor | | |
| C22 | 39846140 | Gas Valve | | |
| C23 | 39846150 | NG injector47430 | | |
| C24 | 39846900 | LPG injector | | |
| C25 | 39847570 | Condensate Trap | | |
| C26 | 3980D770 | Flow/Air Separator Pipe | | |
| C27 | 39848280 | Valves | | |
| C28 | 39848290 | Filling loop | | |
| C29 | 39847430 | Heat Exchanger Seal (Only supplied with C06 39846080) | | |
| P01 | 3841L730 | DHW Outlet Pipe | | |
| P02 | 3841D412 | Heating Return Pipe | | |
| P03 | 3841G571 | Bypass Pipe | | |
| P04 | 3841D402 | Cold Water Inlet Pipe | | |
| P05 | 3841L740 | Gas pipe | | |
