Ideal Boilers Classic FF 250 P Installation And Servicing Manual

Classic FF - Propane Installation 31SERVICING62 MAIN BURNER & MAIN BURNER INJECTOR REPLACEMENT1. Refer to Frame 56.2. Remove the screw retaining the front burner support strapto the combustion chamber.3. Remove the M5 pozi screw, situated at the left hand bottomrear of the burner. Pull the burner downwards to disengagethe retention tab and remove the burner.4. At this stage the main burner injector can be removed,checked, cleaned or replaced as required. Ensure that anapproved jointing compound us used sparingly.5. Fit the new burner, ensuring that the retention tab is correctlylocated in the air box slot and reassemble in reverse order.6. Check the burner for cross-lighting and flame stability.61 SPARK ELECTRODE AND LEAD REPLACEMENT1. Refer to Frame 56.2. Remove the burner and air box assembly. Refer to Frame 51.3. Remove the electrode retaining nut.4. Remove the pilot shield.5. Remove the spark electrode and integral lead.6. Refit the new electrode and lead in reverse order.Ensure that the pilot shield is replaced.7. Check the spark gap. Refer to Frame 60.8. Reassemble in reverse order.9. Check the operation of the boiler.63 GAS CONTROL VALVE REPLACEMENTNote. Refer also to Frame 71 of 'Exploded Views' forillustration of the procedure detailed below.1. Refer to Frame 56.2. Remove the burner and air box assembly. Refer toFrame 51.3. Remove the fixing screws.Swing the control box down into the servicing position.4. Disconnect the gas control valve electrical leads.5. Undo the gas cock union .6. Whilst supporting the gas control valve, remove the 2screws retaining the manifold to the back panel.7. Remove the gas control / manifold assembly.8. Remove the 4 screws retaining the manifold to the gascontrol valve, and fit the manifold to the new valve.Ensure that the new control is fitted the correct way round(an arrow engraved on back indicates the direction offlow).9. Transfer the gas cock union to the new gas control valve,using an approved jointing compound.10. Re-assemble in reverse order.11.Check the operation of the boiler.SERVICING