Ideal Boilers Mexico Super FF440 Installation And Servicing Manual

18 Mexico Super FF440 - FF480 - Installation & ServicingREAR FLUE OUTLETINSTALLATIONTOP FLUE OUTLET28 CUTTING THE FLUE - wall thicknesses of 114 to 600mm1. Measure and note the wall thickness X.2. Mark the wall thickness onto the flue.3. To ensure the tube is cut square, mark the flue allthe way round.4. Cut to length X, using the cardboard ring forsupport.5. Remove cardboard ring and remove any burrs.29 FITTING BOILER SEALING RING TO THE FLUE1. Fit the boiler sealing ring inside the appropriate length(A) of outer flue duct (refer to Frame 7). Ensure theboiler sealing ring is fully engaged.2. Drill 3 holes 3.2mm ( 1/8 ") dia. through the outer flue ductand boiler sealing ring. Do not drill the inner flue duct.3. Insert the self tapping screws, provided, in order to fixthe boiler sealing ring in position.4. Fit the turret access cover to the sealing ring.1. To determine the position for the foam sealmeasure the wall thickness and mark it ontothe flue, measuring from the groove near theterminal.2. Wrap the self-adhesive foam strip round theflue, ensuring that the foam is on the terminalside of the line. This seals the gap betweenthe flue and the wall.30 FITTING THE FOAM SEAL