Ideal Boilers mini HE C24 Installation And Servicing

SERVICINGmini HE --- Installation & Servicing34REPLACEMENT OF COMPONENTS40 GENERALWhen replacing any component:1 Isolate the electricity supply at the switched spur.N.B. Turning the boiler “ON/OFF” switch does not isolatethe live supply to the boiler.2 Turn off the gas supply.IMPORTANT. When work is complete the inner case covermust be correctly fitted, ensuring that a good seal is made.THE BOILER MUST NOT BE OPERATED IF THE INNERCASE COVER IS NOT FITTED.If the CH and/or the DHW circuits have been emptied:3 Open the hydraulic circuit cocks, refill / re---pressurisepipeworks and vent the system.4 Test fire the boiler5 Disconnect the filling loop.41 SPARK AND DETECTIONELECTRODE REPLACEMENT1 Disconnect the electrical supply.2 Remove outer and inner casing (refer to frame 34).3 Open the combustion chamber and disconnect theelectrodes leads.4 Remove the burner. Refer to frame 35.5 Undo the screws that hold the electrodes and remove.6 Fit new electrodes as necessary following the sequenceillustrated.Ignition 1stIgnition 2ndDetection 3rd7 Check the spark gap.4 mm (5/32”)IgnitionDetection MaleFemale10 mmBurner blade(3/8”)8 Re---assemble in reverse order.9 Check the ignition and operation of the burner.42 BURNER REPLACEMENT1 Remove the burner as explained in frame 352 Remove the spark and detection electrodes.Refer to frame 41.3 Fit the electrodes on the new burner and check the sparkgap.4 Re---assemble in reverse order.5 Check the operation of the boiler.43 BURNER INJECTORSREPLACEMENT1 Remove the burner. Refer to frame 35.2 Unscrew the injectors from the gas manifold.3 Check that the new injectors are of the correct size and fitit using new gaskets.4 Re---assemble in reverse order.5 Check the operation of the boiler.Gas manifoldInjectorsBurnerSERVICING