Weil-McLain LGB-23 manual Junction box assembly dual base boilers, III Wiring - continued

Contents Part Number 550-141-916/1001 Part Number 550-141-916/1001 Part Number 550-141-916/1001 Natural gas supply pipe sizing II Gas pipingLGB-6to LGB-23 Series 2 - Control Supplement III Wiring Universal Control System - Natural gasIII Wiring - continued SCHEMATIC WIRING DIAGRAMPRE-WIREDPANEL NO. 1 BASE WIRINGWiring diagram LADDER WIRING DIAGRAMUniversal Control System - Natural gas Natural GasJunction box assembly dual base boilers III Wiring - continuedLGB-6to LGB-23 Series 2 - Control Supplement 3.Attach control transformers to junction boxesPart Number 550-141-916/1001 IV Operating instructionsUniversal Control System - Natural gas V Verification testing Manual test firing valveLGB-6to LGB-23 Series 2 - Control Supplement Verify boiler control sequenceVI Parts list - continued Parts drawingUniversal Control System - Natural gas Part Number 550-141-916/1001Part Number 550-141-916/1001 LGB-6to LGB-23 Series 2 - Control SupplementWeil-McLain 500 Blaine Street Michigan City, IN