INSTALLATIONmini HE --- Installation & Servicing 17Cutting lengths of flue and air ductsMeasure the wall thickness and, when using a side outlet, thegap between the inner wall and the boiler side casing. Usethe following chart to calculate the cutting lengths of both flueand air ducts.Mark the air duct and flue duct making reference on thegroove.Groove GrooveTwin PipeAir ductRear Outlet Wall thickness + 130 mmRear outlet+Stand ---off Wall thickness + 165 mmSide Outlet --- RH Wall thickness + Gap + 187 mmSide Outlet --- LH Wall thickness + Gap + 93 mmFlue DuctRear Outlet Wall thickness + 130 mmRear outlet+Stand ---off Wall thickness + 165 mmSide Outlet --- RH Wall thickness + Gap +67 mmSide Outlet --- LH Wall thickness + Gap + 213 mm12 REAR FLUE ASSEMBLYLegend1 Wall finishing gasket --- external (rubber)2 Self tapping screw 4,2x133 Flue turret4 Boiler---turret gasket5 Flue pipe gasket6 Turret---air pipe gasket7 Centring spring8 Air/flue pipe with terminal grille assembly9 Wall finishing gasket --- internal (plastic)18976 543213 WALL MOUNTING TEMPLATE(rear flue)IMPORTANTDetailed installation steps are given directly on the wallmounting template1 Tape the template into the selected position.2 Ensure squareness by hanging a plumbine.3 Mark onto the wall the following:a. the wall mounting plate screw positionsb. the position of the flue duct.(Mark the centre of the hole as well as the circumference)4 Remove the template from the wallabINSTALLATION