|
| REPLACEMENT OF PARTS |
15.1 | 15.2 | 15. Fan |
|
| 15.1 Remove 3 screws (A) retaining mixing |
| B | chamber. |
|
| 15.2 Remove 2 screws (B) retaining the fan to |
|
| the air/gas manifold. |
A |
| 15.3 Remove screw (C) retaining plate and |
|
| remove. |
|
| |
|
| are correctly fitted. |
|
| 16. Electrode assembly |
| 15.3 | Disconnect spark electrodes and flame |
| sensor connection. | |
16 |
| Remove clamping plate (D). |
C | Remove spark/flame electrode assembly (E) | |
| from heat exchanger. | |
|
| |
|
| 17. Burner |
|
| Remove seal (F) from the top of the heat |
D |
| exchanger. |
| Remove burner (G). | |
|
| |
|
| Replace new burner in correct position. |
E |
| Ensure that burner tab fits correctly into hole. |
| Ensure that the seal is replaced with a new one. |
17
F
G
18. Heat Exchanger
Isolate flow and return valves then drain the boiler.
Remove siphon.
18.1Remove clip from plastic elbow on the flow pipe and pull flow pipe away from heat exchanger.
18.2 Remove plastic nut from the bottom of the boiler.
18.3 Rotate lever to release return pipe.
18.4Undo flue connection from sump.
Pull heat exchanger assembly up to clear.
Reassemble and check combustion as stated in the gas conversion section.
IMPORTANT: IF THE JOINT
BETWEEN THE AIR/GAS MANIFOLD
AND THE HEAT EXCHANGER IS
DISTURBED THE SEALING GASKET
MUST BE REPLACED.
18.4
18.1 | 18.2 | 18.3 |
SERVICING | & SPARES |
H
46
INSTALLATION & SERVICING INSTRUCTIONS FOR WORCESTER GREENSTAR 24 i junior/28 i junior 8 716 107 336b (11/05)
REPLACEMENT OF PARTS
