Classic LXFF, FF - Installation 13Note. If theterminal is to besited within 25-40mm of a corneror vertical pipe(refer to Table 3)then the holeMUST beaccurately cut andthe rubberweather sealtrimmed aroundthe grooveprovided.The terminal wallplate need not befitted.INSTALLATIONNote. Check all of the holepositions BEFORE drilling9 FLUE ASSEMBLY - Exploded ViewLEGEND1. Terminal2. Weather sea3. Flue assembly4. Boiler sealing ring5. Flue extension tubeREAR FLUE OUTLET1. An optional flueduct extension kitis required forwall thicknessesgreater than600mm (23 1/2 ")Refer to Frame 8.2. When cutting theducts, always usethe cardboardsupport ringsprovided.10 WALL MOUNTING TEMPLATENote. The template shows the positions for the fixing holesand the flue hole centres for standard installation. Care mustbe taken to ensure the correct holes are drilled.1. Separate the templates.2. Tape the templates into the selected position.3. Ensure squareness by hanging a plumb line as shown.4. Mark onto the wall (if required) the following:a. The wall mounting plate screw positions (chooseone from each group). Note. Mark the centre of theflue hole as well as the circumference.b. The position of the flue duct hole.c. Downward pipe routing bracket screw positions.5. Remove the templates from the wall.IMPORTANT. Ensure that, during the cutting operation,masonry falling outside of the building does not cause damageor personal injury.1. Cut the flue hole, preferably with a 125mm (5") core boringtool, ensuring that the hole is square to the wall. If the holehas been quite accurately cut with a drill then making goodthe wall faces is not essential as seals are provided at bothends of the flue. However, both wall faces immediatelyaround the cut hole should be flat; make good if necessary.For less accurate holes make good to approximately125mm (5") diameter at the two wall faces.2. Drill 4 holes for the wall mounting plate with an 8mm ( 5/16 ")masonry drill. If the stand-off brackets are used ensure thecorrect holes are chosen.3. Insert the plastic plugs provided.11 PREPARING THE WALLIMPORTANT.On FF 2 100 models only: the flue extensiontube includes an air deflector ring.