Page 4 Biasi SG Pro SeriesThis installation manual is for the basic installation of a SG Pro series boiler for atmosphericventing for oil and gas. If you are installing a direct vent system or please refer to its addendum inconjunction with this manual to insure the proper installation of the boiler.BIASI SG Pro-Series Section PageImportant Information &Warnings 5-6General Information 1 7Boiler Block Assembly &Explosion Diagram 2 8Boiler Location 3 9Installation of Boiler Trim Kit Components 4 10-12Piping the Boiler 5 13Intake Venting 6 14-15Exhaust Venting 7 16Common Exhaust Venting 7.1 16-17Block Flue Switch 7.2 17Gas Venting 7.3 18Burner Setup 8 18Oil 8.1 19Gas 8.2 20Gas Line Piping 9 21Boiler Jacket Assembly 10 22Control Panel 11 23Control Panel Operation 11.1 23Wiring 12Wiring 12.1 24Oil Diagrams 12.2 24-26Gas Diagram 12.3 27-28Priority Wiring 12.4 29Commissioning the Boiler 13 30Maintenance 14 31Installer Notes 15 32Homeowner Information 16 33Notes: 34-36Warranty Back CoverTable of Contents