WWW.SALSANAEnergy Knight B A Hmc36at Hmh36at Service Manual User Guide - Installation & Operation Manual Models: 80 - 500 This manual must only be used by a technician. Read all instructions, including this manual and the Knight Boiler Service Manual,before installing. Perform steps in the order given. Failure to comply could result prescribed by the United States Department of Energy. 3. Net I=B=R ratings. LG Manuals, User Guides, Quick Start Guides and Help.