Ideal Boilers Optia HE 9 Installation And Servicing Instructions

Optia HE - Installation & Servicing 17INSTALLATIONREAR FLUE OUTLET14 CUTTING THE FLUE - wall thicknesses of 75 to 705mm1. Measure and note the wall thickness X (Refer to Frame 10).2. Mark the wall thickness onto the flue.3. To ensure the tube is cut square, mark the flue all the wayround.4. Position the inner flue spring to support the inner flue during thecutting process.5. Cut to length X, (refer to Frame 10).6. Remove any burrs and remove the inner flue support ring.15 FITTING THE FLUE CONNECTING RING AND THE BOILER SEALING RING TO THE FLUE1. Remove the two fan electrical connections, the redpressure sensing pipe, the blue CO/CO 2 sensingpipe and the two fan fixing screws.2. Pull the fan forward, remove and retain.3. Remove the two fixing screws retaining theremovable top section of the aluminiumrecuperator and carefully lift the recuperator topsection from the main body.5. If using the flue finishing kit, push the black outerwall seal over the outer flue duct (Refer to Frame16) prior to fitting the flue ring. Fit the boiler sealingring inside the terminal 'B' pack outer flue duct.Ensure the boiler sealing ring is fully engaged.Ensure the notch aligns with the label on the outerflue duct. This ensures correct alignment of the flueterminal.6. Drill 3 holes 3.2mm (1/8") dia. through the outer flueduct and boiler sealing ring. Do NOT drill the innerflue duct.7. Insert the self-tapping screws, provided, in order tofix the boiler sealing ring in position.8. Stick the self-adhesive foamstrip, provided in the boilerhardware pack, onto the flueimmediately behind the boilersealing ring.cla7841Note. If the downward piping kit bracket is to be used, it isessential that 30mm is added to the measured wall thicknesswhen marking the flue.4. Fit the 'O' ring to the flue extension ring and fitthe flue extension ring (to be found in theboiler hardware pack) to the rear of therecuperator top section using the three M4 x10 taptite screws and form C washers also tobe found in the boiler hardware pack.43cla76625FixingscrewsElectricalconnectionsAir pressure switch &CO/CO 2 sensing pipes1