16INSTALLATIONClassic Slimline FF - Installation & ServicingREAR FLUE OUTLET1. Pull the flue through and locate the 3 studs in theholes in the back panel.2. Secure the flue to the boiler using the three M5wing nuts provided.3. Pull the flue extension tube and engage onto thefan. Locate and secure with the M4 screwattached to the fan.Note.The sealing ring studs will locate in the back panelone way only. This will ensure that the terminal grilleis correctly aligned.1. Lift the boiler onto the wall mounting plateas shown.Do not use the burner / controls for lifting2. Fit an additional No.14 x 50mm woodscrewthrough the slot in the boiler back panelabove the flue into the wall plug. Use thewasher and rectangular sealing plate toseal the slot and retain the boiler.Note.Before fully tightening the retaining screw checkthe boiler alignment, using a spirit level, andadjust as necessary with the jacking screw.19 CONNECTING THE FLUE TO THE BOILER20 TERMINAL WALL PLATEThis plate allows neat concealment and full compression ofthe rubber seal. Its use is not essential if the flue hole andflue ducts have been accurately cut and the outside wallface is flat.1. Position the terminal wall plate over the terminal.2. Mark and drill 4 fixing holes with an 7mm ( 9/32 ") masonrydrill.3. Insert the 4 plastic plugs provided.4. Secure the plate with 4 of the No.10 x 2" screwsprovided.Note.If the terminal is less than 2m (6' 6") above groundlevel, an approved terminal guard should be fitted. Refer tothe Contents List on Page 3.18 MOUNTING THE BOILER