TURBOmax VUW 282 E - Heatingspares247.com

6.2.5 Inspect burnerWith the combustion chamber frontcover and heat exchanger front panelremoved it is possible to inspect theburner. Any deposits should beremoved with a soft brush. Check thecondition of the ignition andmonitoring electrodes.6.2.6. Check central heatingexpansion vesselNote : It is not necessary to carry outthis check every year - a check everythree years should be sufficient.Release the pressure from the boiler asdescribed in section 7.1.2.Remove valve cap from expansionvessel charge point (2, fig. 49).Check that internal charge pressure ofexpansion vessel is between 0.7 - 0.9Bar. If pressure is lower than this thevessel should be re-pressurised usingan air pump.Refit valve cap (2, fig. 49).Open central heating service valvesand re-pressurised the boiler andheating system if necessary (seesection 5.4).fig. 48fig. 49GW 639/0GW 604/06.3 Re-commissioning the boiler• Refit the heat exchanger frontpanel.• Refit combustion chamber frontcover ensuring that the seal is ingood condition. Ensure that thecover is correctly fitted and a goodseal is obtained.• Turn on the gas and electricitysupplies.• Check soundness of internal gasconnections.• Carry out electrical safety checks(see section 5.1)• Check water soundness• Operate burner and check flamepicture.• Check for correct function of theboiler ( see section 5.10).• Check burner pressure as describedin section 5.8 and boiler gas flowrate.• Refit case (see Section 5.13)31