Ideal Boilers Classic Combi FF 280 Installation And Servicing

Also see for Classic Combi FF 280: Installation and Servicing Manual User guide

Classic Combi FF 280 - Installation 33SERVICING1. Remove the 2 silicon rubber tubes from the fan sensingpoints.2. Disconnect the fan leads and the fan earth connection.3a. Rear flueSlacken the M4 screw securing the flue connector to thefan. Disconnect the connector from the fan and slide intothe flue.3b. Side flueSlacken off two M4 screws securing the flue elbow andflue connector. Disconnect the flue connector from theelbow and slide into the flue. Remove the flue elbow.4. Disconnect the silicon rubber tube from the rear of thecollector hood.5. Slacken the two M5 nuts on the front tie rods, releasingthe tie rods from the combustion chamber.6. Remove the M5 central fixing screw at the rear of thecollector hood and remove collector hood/fan assembly.7. Check that the fan impeller runs freely. Remove anydebris from the impeller with a soft brush.8. Remove the flue baffle clips and remove the flue baffles.59 CLEANING THE FAN ASSEMBLY / THE FLUEWAYS1. Brush off any deposits that may have fallen on to theburner head, ensuring the flame ports are unobstructed,and remove any debris that may have collected.Note. Brushes with metallic bristles must not be used.2. Remove the main burner injector and ensure there is noblockage or damage. Clean or renew as necessary.3. Refit the injector, using an approved jointing compoundsparingly.4. Inspect the pilot burner and ignition / detection electrode.Ensure that they are clean and in good condition. Checkthat:a. The pilot burner injector is not blocked or damaged.Refer to Frame 68 for removal details.b. The pilot burner is clean and unobstructed.c. The ignition / detection electrode is clean andundamaged.e. The ignition / detection lead is in good condition.f. The spark gap is correct (Frame 68). Clean or renew asnecessary.Note. The pilot shield is located around the pilot assemblybracket and is located by the electrode retaining nut.5. Refit the control box.6. Reconnect the gas supply and the electrical wiring. Refer toFrames 41 and 46.7. Check the sightglass in the boiler casing. Clean or renewas necessary. Refer to Frame 65.8. Check for gas soundness. Check the gas service cock andpressure test point.9. Refit the boiler casing and tighten the 4 captive screws.IMPORTANT.When work is complete the casing must be correctlyrefitted. Ensure that a good seal is made.10. Close the controls pod door.9. Remove all loose deposits from the heat exchanger,particularly between the fins, using a suitable brush.10. Reassemble in reverse order, ensuring that the fan leads,fan earth connection and 3 sensing tubes are reconnected.SERVICINGReassemble the boiler in the following order:1. Refit the flue baffles.2. Inspect the collector hood rope gasket and replace, ifnecessary, ensuring that the self adhesive rope is fittedcentrally onto the lip of the collector hood /fan assembly.The boiler efficiency will be adversely affected if incorrectlyfitted.Refit the collector hood and retain with the 2 front tie rodsand the rear central fixing screws. Tighten the nuts andscrew. Ensure that the sealing gasket is compressed.3. Refit the 3 sensing tubes and reconnect the electricalleads.4. Refit the air box assembly and burner. Ensure that theburner front fixing is refitted.61 RE-ASSEMBLY60 CLEANING THE BURNER AND PILOT ASSEMBLY