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April 2008 UIN 203318 A04 For the very latest copy of literature for specification purposes please visit our website where you will be able to download the relevant information in pdf format. icos -Installation & Servicing DOCUMENT AMENDMENTS Relevant Installation changes implemented in this book from Mod Level ......................... A03 to A04 (Apr 08) • Page 15, Frame 11 - Unpacking Change to boiler contents, wall mounting template now mounted on internal packaging. • Page 15, Frame 12 - Pa