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TURNING YOUR RAYBURN OFF. Full installation and user instructions can be found here on the Rayburn website. Alternatively, choose your model from the View and Download Rayburn Heatranger 440 servicing instructions online. Fault Finding WIRING DIAGRAM APPLIANCE - 440/460/480K/499K Fig. 39. Feb 13, 2011 - Servicing Instructions Heatranger 440/460/480/499K For use in GB and IE DESN 10B 480K BOILER 10 VANES 5mm HOLES LARGE SLOTS COOKER 10 Rayburn Heatranger 480 Pdf User Manuals. View online or download Rayburn Heatranger 480 Installation Instructions Manual, Servicing Instructions, User Mar 14, 2015 - Oct 26, 2006 -Since these models incorporate a manual reset overheat device, it is possible to use a sealed system as an alternative to the 480K, 28mm, 28mm. 499K, 880K