Halstead Ace High Installation And Servicing Instructions

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Halstead Ace High Installation And Servicing Instructions Manual pdf 23 page image

ROUTINE SERVICING632 LOCATION OFSERVICEABLECOMPONENTS6.1 MAIN BURNER ASSEMBLY6.2 BURNER INJECTOR6.3 IGNITION AND DETECTION ELECTRODESTo ensure continued efficient operation of the appliance, it isrecommended that it is checked and serviced as necessary atregular intervals. The frequency of servicing will depend upon theparticular installation conditions and usage but in general once ayear should be adequate. It is the law that any service work mustbe carried out by a competent person, such as British Gas orother CORGI registered personnel.The boiler incorporates a flue sampling point on the top panel infront of the flue outlet. If the service engineer has suitableequipment to analyse the flue gas, the plastic cap may beremoved and a 6mm inside diameter sample tube fitted. Do notforget to replace the plastic cap after use.Before commencing any service operation, ISOLATE the mainselectrical supply, and TURN OFF the gas supply at the mainservice cock.Service the appliance by following the full procedure detailedbelow:a) Remove the casing front panel by unscrewing the panelretaining screw and lifting off the panel.b) Remove the sealed chamber front panel (4 screws).c) Remove the combustion chamber front panel (7 screws). Takecare not to damage the insulation.Do not attempt to light the burner with Front Panelremoved.d) Remove the 4 screws securing the burner on the gas manifold.e) Unscrew and remove the two screws securing the controlpanel in the upright position and pivot the panel forwards.f) Remove the two spark and one detection electrode leads fromthe electrodes.Check that the injectors fitted in the gas manifold are free from dirtand debris. If necessary clean the injector orifice carefully using asoft brush or vacuum cleaner. Do not use a wire brush or anyabrasive material.It is not necessary to remove the injectors. If there aresigns of injector(s) being blocked please call the Halstead ServiceDepartment.a) Inspect the ignition and detection electrodes in situ. Ifnecessary clean using a soft brush. If either the electrode orthe ceramic insulation show signs of damage or wear, replacethe electrode(s).b) Check that the alignment of the ignition and detectionelectrodes are as shown in Figure 34. Adjust by carefullybending the tip of the electrode rod whilst supporting the baseof the rod. Do not put any pressure on the ceramic insulation.g) Remove the burner by lifting it forward with reference toFigure 33.h) Inspect and if necessary clean the main burner ports using asoft brush or vacuum cleaner. Do not use a wire brush or anyabrasive material.•COMBUSTION CHAMBERFRONT PANEL FIXINGSCREWS (7)••••••• •••••AUTO AIRVENTFAN ASSEMBLY BASEPLATE SCREWSPUMPGROUP SETCONTROLCOVERAIR PRESSURESWITCH & PIPESDETECTION ELECTRODEBURNERIGNITION ELECTRODES• GAS CONTROL VALVE• PRESSURE RELIEFVALVEFAN ASSEMBLY•PRESSUREGAUGE•OVERHEAT THERMOSTAT• CONTROL PANEL 21