In the case of installaion with aluminum rail, insert the special guide of AMX diffuser into the rail starting from the opposite side of the jointing entrance, paying attention that the end of the diffuser is the open one ready to have the circular duct fitted therein. Stretch the diffuser and help it to slide into the rail up to the circular duct; insert the diffuser as described earlier and check that it is under correct tension right through its entire length.
