| A01 | 39848130 | CASING LHS | | |
| A02 | 39848230 | CASING RHS | | |
| A03 | 3980C870 | CASING FRONT | | |
| B01 | 39845841 | PCB COMPLETE WITH HOUSING | | |
| B02 | 39847330 | FACIA PANEL | | |
| B03 | 3980C880 | WIRING LOOM | | |
| B04 | 39846290 | PRESSURE GAUGE | | |
| C01 | 39846940 | HEAT EXCHANGER | | |
| C02 | 39845900 | REAR HEAT EXCHANGER INSULATION AND PLATE | | |
| C03 | 39845890 | SENSOR - HEAT EXCHANGER | | |
| C04 | 39846061 | FAN - BURNER ASSEMBLY | | |
| C05 | 39846080 | SEAL - HEAT EXCANGER | | |
| C06 | 39847430 | SEAL - HEAT EXCHANGER (GRAPHITE) | | |
| C07 | 39846091 | ELECTRODE AND LEAD | | |
| C08 | 39846100 | PCB - FAN | | |
| C09 | 39846110 | AIR SILENCER | | |
| C10 | 39820900 | PUMP ASSEMBLY | | |
| C11 | 39818220 | AUTO AIR VENT | | |
| C12 | 39818260 | SENSOR - LOW WATER PRESSURE | | |
| C13 | 39818270 | SAFETY ALVE | | |
| C14 | 39846250 | EXPANSION VESSEL | | |
| C15 | 39819550 | COMBINED STAT FLOW/1000C | | |
| C16 | 39810220 | SENSOR - RETURN | | |
| C17 | 39846140 | GAS VALVE | | |
| C18 | 39846150 | INJECTOR | NG | |
| C19 | 39846900 | INJECTOR | LPG | |
| C20 | 39847570 | INTERNAL CONDENSATE PIPE | | |
| C21 | 39847980 | ISOLATION VALVE - RETURN | ?? | |
| C22 | 39846220 | ISOLATION VALVE - GAS | | |
| C23 | 39848240 | ISOLATION VALVE - FLOW | | |
| P01 | 3841F720 | CH FLOW PIPE | | |
| P02 | 3841D411 | CH RETURN PIPE | | |
| P03 | 3841D430 | PUMP TO EXPANSION VESSEL PIPE | | |
| P04 | 3841F741 | BYPASS PIPE | | |
| P05 | 3841D815 | GAS PIPE | | |
