| Fits Appliance(s) |  | GC No. |  | 
                    
                        | Gold 24 HE A Combi (After Serial No BMX0815 & GNH0815) |  | 47-393-18 | Diagram | 
                    
                        | Gold 24 HE A Combi (Before Serial No BMX0815 & GNH0815) |  | 47-393-18 BEFORE | Diagram | 
                    
                        | Gold 24 HE Combi |  | 47-590-05 | Diagram | 
                    
                        | Gold 28 HE Combi |  | 47-590-06 | Diagram | 
                    
                        | Gold 28 HEA Combi (After Serial No BNF0932 & GNK0932) |  | 47-393-19 | Diagram | 
                    
                        | Gold 28 HEA Combi (Before Serial No BNF0932 & GNK0932) |  | 47-393-19 BEFORE | Diagram | 
                    
                        | Gold 33 HE A Combi (After Serial No GNL1112) |  | 47-393-20 | Diagram | 
                    
                        | Gold 33 HE A Combi (Before Serial No GNL1112) |  | 47-393-20 BEFORE | Diagram | 
                    
                        | Gold 33 HE Combi |  | 47-590-19 | Diagram | 
                    
                        | Gold 24 Combi ErP (Serial No Ending AC) |  | 47-393-43 | Diagram | 
                    
                        | Gold 24 Combi ErP (Serial No Ending BC & CC) |  | 47-393-43 BC | Diagram | 
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                        | Gold 24 Combi ERP (Serial No Ending DC) |  | 47-393-43 DC | Diagram | 
                    
                        | Gold 24 Combi ERP (Serial No Ending EC) |  | 47-393-43 EC | Diagram | 
                    
                        | Gold 28 Combi ErP (Serial No Ending AC) |  | 47-393-44 | Diagram | 
                    
                        | Gold 28 Combi ErP (Serial No Ending BC & CC) |  | 47-393-44 BC | Diagram | 
                    
                        | Gold 28 Combi ERP (Serial No Ending DC) |  | 47-393-44 DC | Diagram | 
                    
                        | Gold 28 Combi ERP (Serial No Ending EC) |  | 47-393-44 EC | Diagram | 
                    
                        | Gold 28 Combi ErP LPG (Serial No Ending AC) |  | 47-393-45 | Diagram | 
                    
                        | Gold 28 Combi ErP LPG (Serial No Ending BC & CC) |  | 47-393-45 BC | Diagram | 
                    
                        | Gold 28 Combi ERP LPG (Serial No Ending DC) |  | 47-393-45 DC | Diagram | 
                    
                        | Gold 28 Combi ERP LPG (Serial No Ending EC) |  | 47-393-45 EC | Diagram | 
                    
                        | Gold 33 Combi ErP (Serial No Ending AC) |  | 47-393-46 | Diagram | 
                    
                        | Gold 33 Combi ErP (Serial No Ending BC & CC) |  | 47-393-46 BC | Diagram | 
                    
                        | Gold 33 Combi ERP (Serial No Ending DC) |  | 47-393-46 DC | Diagram | 
                    
                        | Gold 33 Combi ERP (Serial No Ending EC) |  | 47-393-46 EC | Diagram | 
                    
                        | Gold System 18 HE A |  | 41-592-15 | Diagram | 
                    
                        | Gold System 24 HE A |  | 41-592-16 | Diagram | 
                    
                        | Gold System 28 HE A (After Serial No HSA1112) |  | 41-592-17 | Diagram | 
                    
                        | Gold System 28 HE A (Before Serial No HSA1112) |  | 41-592-17 BEFORE | Diagram | 
                    
                        | Gold System 18 Erp Serial No. Ending in AC |  | 41-592-39 | Diagram | 
                    
                        | Gold System 18 Erp Serial No. Ending in BC & CC |  | 41-592-39 BC | Diagram | 
                    
                        | Gold System 18 Erp Serial No. Ending in DC |  | 41-592-39 DC | Diagram | 
                    
                        | Gold System 24 Erp Serial No. Ending in AC |  | 41-592-40 | Diagram | 
                    
                        | Gold System 24 Erp Serial No. Ending in BC & CC |  | 41-592-40 BC | Diagram | 
                    
                        | Gold System 24 Erp Serial No. Ending in DC |  | 41-592-40 DC | Diagram | 
                    
                        | Gold System 28 Erp Serial No. Ending in AC |  | 41-592-41 | Diagram | 
                    
                        | Gold System 28 Erp Serial No. Ending in BC & CC |  | 41-592-41 BC | Diagram | 
                    
                        | Gold System 28 Erp Serial No. Ending in DC |  | 41-592-41 DC | Diagram | 
                    
                        | Heatmax Combi 24 HE |  | 47-393-27 | Diagram | 
                    
                        | Heatmax Combi 28 HE |  | 47-393-28 | Diagram | 
                    
                        | Heatmax Combi 33 HE (After Serial No FMN1112) |  | 47-393-29 | Diagram | 
                    
                        | Heatmax Combi 33 HE (Before Serial No FMN1112) |  | 47-393-29 BEFORE | Diagram | 
                    
                        | Promax 24 Store Cylinder 115LTR ERP ISS 04 Ending BC |  | 41-592-48 BC | Diagram | 
                    
                        | Promax 24 Store Cylinder 115LTR ERP ISS 05 Ending AC |  | 41-592-48 AC | Diagram | 
                    
                        | Promax 24 Store Cylinder 150LTR ERP ISS 04 Ending BC |  | 41-592-49 BC | Diagram | 
                    
                        | Promax 24 Store Cylinder 150LTR ERP ISS 05 Ending AC |  | 41-592-49 AC | Diagram | 
                    
                        | Promax 24 Store Cylinder 90LTR ERP ISS 04 Ending BC |  | 41-592-47 BC | Diagram | 
                    
                        | Promax 24 Store Cylinder 90LTR ERP ISS 05 Ending AC |  | 41-592-47 AC | Diagram | 
                    
                        | Promax Combi 24 ERP (Serial No Ending AC) |  | 47-393-47 AC | Diagram | 
                    
                        | Promax Combi 24 ERP (Serial No Ending BC & CC) |  | 47-393-47 BC | Diagram | 
                    
                        | Promax Combi 24 ERP (Serial No Ending DC) |  | 47-393-47 DC | Diagram | 
                    
                        | Promax Combi 24 ERP (Serial No Ending EC) |  | 47-393-47 EC | Diagram | 
                    
                        | Promax Combi 28 ERP (Serial No Ending AC) |  | 47-393-48AC | Diagram | 
                    
                        | Promax Combi 28 ERP (Serial No Ending BC & CC) |  | 47-393-48 BC | Diagram | 
                    
                        | Promax Combi 28 ERP (Serial No Ending DC) |  | 47-393-48 DC | Diagram | 
                    
                        | Promax Combi 28 ERP (Serial No Ending EC) |  | 47-393-48 EC | Diagram | 
                    
                        | Promax Combi 33 ERP (Serial No Ending AC) |  | 47-393-49 AC | Diagram | 
                    
                        | Promax Combi 33 ERP (Serial No Ending BC & CC) |  | 47-393-49 BC | Diagram | 
                    
                        | Promax Combi 33 ERP (Serial No Ending DC) |  | 47-393-49 DC | Diagram | 
                    
                        | Promax Combi 33 ERP (Serial No Ending EC) |  | 47-393-49 EC | Diagram | 
                    
                        | Promax Combi 24 HE Plus |  | 47-393-17 | Diagram | 
                    
                        | Promax Combi 24 HE Plus A |  | 47-393-21 | Diagram | 
                    
                        | Promax Combi 24 HE Plus LPG |  | 47-393-24 | Diagram | 
                    
                        | Promax Combi 28 HE Plus |  | 47-590-04 | Diagram | 
                    
                        | Promax Combi 28 HE Plus A |  | 47-393-22 | Diagram | 
                    
                        | Promax Combi 33 HE Plus |  | 47-590-03 | Diagram | 
                    
                        | Promax Combi 33 HE Plus A |  | 47-393-23 | Diagram | 
                    
                        | Promax 12 HE Plus A System |  | 41-591-99 | Diagram | 
                    
                        | Promax 12 HE Plus System |  | 41-591-90 | Diagram | 
                    
                        | Promax 15 HE Plus A System |  | 41-592-01 | Diagram | 
                    
                        | Promax 15 HE Plus System |  | 41-591-91 | Diagram | 
                    
                        | Promax 18 HE Plus A System |  | 41-592-02 | Diagram | 
                    
                        | Promax 18 HE Plus System |  | 41-591-92 | Diagram | 
                    
                        | Promax 24 HE Plus A System LPG (After Serial No. ELW 0932) ) |  | 41-592-11 AFTER | Diagram | 
                    
                        | Promax 24 HE Plus A System LPG (Before Serial No. ELW 0932) ) |  | 41-592-11 BEFORE | Diagram | 
                    
                        | Promax 24 HE Plus A System NG (After Serial No. AWD 0932) |  | 41-592-03 | Diagram | 
                    
                        | Promax 24 HE Plus A System NG (Before Serial No. AWD 0932) |  | 41-592-03 BEFORE | Diagram | 
                    
                        | Promax 24 HE Plus System |  | 41-601-21 | Diagram | 
                    
                        | Promax 32 HE Plus A System |  | 41-592-04 | Diagram | 
                    
                        | Promax 32 HE Plus System |  | 41-591-93 | Diagram | 
                    
                        | Promax HE Store 115 Litres |  | 41-591-76 | Diagram | 
                    
                        | Promax HE Store 150 Litres |  | 41-591-77 | Diagram | 
                    
                        | Promax HE Store 90 Litre |  | 41-601-24 | Diagram | 
                    
                        | Promax System 12 ERP (Serial No Ending AC) |  | 41-592-42 AC | Diagram | 
                    
                        | Promax System 12 ERP (Serial No Ending BC & CC) |  | 41-592-42 BC | Diagram | 
                    
                        | Promax System 12 ERP (Serial No Ending DC) |  | 41-592-42 DC | Diagram | 
                    
                        | Promax System 15 ERP (Serial No Ending AC) |  | 41-592-43 AC | Diagram | 
                    
                        | Promax System 15 ERP (Serial No Ending BC & CC) |  | 41-592-43 BC | Diagram | 
                    
                        | Promax System 15 ERP (Serial No Ending DC) |  | 41-592-43 DC | Diagram | 
                    
                        | Promax System 18 ERP (Serial No Ending AC) |  | 41-592-44 AC | Diagram | 
                    
                        | Promax System 18 ERP (Serial No Ending BC & CC) |  | 41-592-44 BC | Diagram | 
                    
                        | Promax System 18 ERP (Serial No Ending DC) |  | 41-592-44 DC | Diagram | 
                    
                        | Promax System 24 ERP (Serial No Ending AC) |  | 41-592-45 AC | Diagram | 
                    
                        | Promax System 24 ERP (Serial No Ending BC & CC) |  | 41-592-45 BC | Diagram | 
                    
                        | Promax System 24 ERP (Serial No Ending DC) |  | 41-592-45 DC | Diagram | 
                    
                        | Promax System 32 ERP (Serial No Ending AC) |  | 41-592-46 AC | Diagram | 
                    
                        | Promax System 32 ERP (Serial No Ending BC & CC) |  | 41-592-46 BC | Diagram | 
                    
                        | Promax System 32 ERP (Serial No Ending DC) |  | 41-592-46 DC | Diagram | 
                    
                        | Promax Ultra 24 Combi ERP (Serial No Ending AC) |  | 47-393-54 AC | Diagram | 
                    
                        | Promax Ultra 24 Combi ERP (Serial No Ending BC & CC) |  | 47-393-54 BC | Diagram | 
                    
                        | Promax Ultra 24 Combi ERP (Serial No Ending DC) |  | 47-393-54 DC | Diagram | 
                    
                        | Promax Ultra 28 Combi ERP (Serial No Ending AC) |  | 47-393-55 AC | Diagram | 
                    
                        | Promax Ultra 28 Combi ERP (Serial No Ending BC & CC) |  | 47-393-55 BC | Diagram | 
                    
                        | Promax Ultra 28 Combi ERP (Serial No Ending DC) |  | 47-393-55 DC | Diagram | 
                    
                        | Promax Ultra 33 Combi ERP (Serial No Ending AC) |  | 47-393-56 AC | Diagram | 
                    
                        | Promax Ultra 33 Combi ERP (Serial No Ending BC & CC) |  | 47-393-56 BC | Diagram | 
                    
                        | Promax Ultra 33 Combi ERP (Serial No Ending DC) |  | 47-393-56 DC | Diagram | 
                    
                        | Promax Ultra 40 Combi ERP (Serial No Ending AC) |  | 47-393-57 AC | Diagram | 
                    
                        | Promax Ultra 40 Combi ERP (Serial No Ending BC & CC) |  | 47-393-57 BC | Diagram | 
                    
                        | Promax Ultra 40 Combi ERP (Serial No Ending DC) |  | 47-393-57 DC | Diagram | 
                    
                        | Titanium 24 |  | 47-393-39 | Diagram | 
                    
                        | Titanium 28 |  | 47-393-40 | Diagram | 
                    
                        | Titanium 33 |  | 47-393-41 | Diagram | 
                    
                        | Titanium 40 |  | 47-393-42 | Diagram | 
                    
                        | Titanium 24 Combi Erp (Serial No. Ending in AC) |  | 47-393-50 | Diagram | 
                    
                        | Titanium 24 Combi Erp (Serial No. Ending in BC & CC) |  | 47-393-50 BC | Diagram | 
                    
                        | Titanium 24 Combi Erp (Serial No. Ending in DC) |  | 47-393-50 DC | Diagram | 
                    
                        | Titanium 24 Combi Erp (Serial No. Ending in EC) |  | 47-393-50 EC | Diagram | 
                    
                        | Titanium 28 Combi Erp (Serial No. Ending in AC) |  | 47-393-51 | Diagram | 
                    
                        | Titanium 28 Combi Erp (Serial No. Ending in BC & CC) |  | 47-393-51 BC | Diagram | 
                    
                        | Titanium 28 Combi Erp (Serial No. Ending in DC) |  | 47-393-51 DC | Diagram | 
                    
                        | Titanium 28 Combi Erp (Serial No. Ending in EC) |  | 47-393-51 EC | Diagram | 
                    
                        | Titanium 33 Combi Erp (Serial No. Ending in AC) |  | 47-393-52 | Diagram | 
                    
                        | Titanium 33 Combi Erp (Serial No. Ending in BC & CC) |  | 47-393-52 BC | Diagram | 
                    
                        | Titanium 33 Combi Erp (Serial No. Ending in DC) |  | 47-393-52 DC | Diagram | 
                    
                        | Titanium 33 Combi Erp (Serial No. Ending in EC) |  | 47-393-52 EC | Diagram | 
                    
                        | Titanium 40 Combi Erp (Serial No. Ending in AC) |  | 47-393-53 | Diagram | 
                    
                        | Titanium 40 Combi Erp (Serial No. Ending in BC & CC) |  | 47-393-53 BC | Diagram | 
                    
                        | Titanium 40 Combi Erp (Serial No. Ending in DC) |  | 47-393-53 DC | Diagram | 
                    
                        | Titanium 40 Combi Erp (Serial No. Ending in EC) |  | 47-393-53 EC | Diagram | 
                    
                        | System 12kW |  | 41-592-71 | Diagram | 
                    
                        | System 15kW |  | 41-592-72 | Diagram | 
                    
                        | System 18kW |  | 41-592-73 | Diagram | 
                    
                        | System 24kW |  | 41-592-74 | Diagram | 
                    
                        | System 28kW |  | 41-592-75 | Diagram | 
                    
                        | Potterton Commercial Sirius 2 WH 50,60,70 (From April 2016) |  |  | Diagram | 
                    
                        | Potterton Commercial Sirius 2 WH 50-60-70 |  |  | Diagram | 
                    
                        | Potterton Commercial Sirius 2 WH·50,60,70 (Before April 2016) iss 03 |  | 50-60-70 ISS-03 | Diagram | 
                    
                        | Potterton Commercial Sirius 3 WH 50 (01-10-2018) |  |  | Diagram | 
                    
                        | Potterton Commercial Sirius 3 WH 60 (01-10-2018) |  |  | Diagram | 
                    
                        | Potterton Commercial Sirius 3 WH 70 (01-10-2018) |  |  | Diagram |