21
SERVICING
EXPLODED VIEWS
LEGEND (Numbers up to 39 relate to the B.G. spares list)
1. Heat exchanger 8. Collector hood 26. Boiler thermostat 39. Overheat thermostat (if
2. Flue baffles 9. Combustion chamber 28. Thermostat pocket fitted)
4. Pumped flow pipe 15. Main burner 32. Wall mounting plate 100. Boiler flue duct.
5. Gravity flow pipe 22. Igniter button 33. Back panel 101. Rubber sealing grommets
6. Pumped return pipe 25. Control box (mounted on 35. Balanced flue terminal 102. Interpanel
7. Gravity return pipe the gas control valve) 37. Programmer (optional) 103. Boiler drain point
LEGEND (Numbers up to 39 relate to B.G. spares list) 27. Boiler thermostat knob
12. Manifold extension 19. Pilot burner shield 39. Overheat thermostat (if fitted)
13. Burner manifold 20. Gas control valve. 104. Extended nuts
14. Air box & pilot burner assy. 21. Gas service cock 105. 'O' ring
15. Main burner 22. Piezo unit 106. Sealing gasket
16. Main burner injector 25. Control box 108. Control box mounting bracket
25 BURNER AND CONTROLS
- Exploded view
27
24 BOILER ASSEMBLY - Exploded view
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