Efficiency-Pac EW 150 -- 300 Installation & Service Manual Brandname: Lochinvar Category: Water Heater Total Pages: 48 Table of contents Contents2GeneralVenting8GeneralVenting9GeneralVenting10GeneralVenting11GeneralVenting12GeneralVenting13GeneralVenting14GeneralVenting15GeneralVenting16GeneralVenting17GeneralVenting18GeneralVenting19GeneralVenting20GeneralVenting21GeneralVenting22GeneralVenting23GeneralVenting24GasConnections25GasConnections26GasConnections27GasConnections28GasConnections29SystemPiping30SystemPiping31SystemPiping32SystemPiping33SystemPiping34ElectricalConnections35ElectricalConnections36ElectricalConnections37OperationandStartup38OperationandStartup39OperationandStartup40OperationandStartup41OperationandStartup42Diagrams43CtP44Troubleshooting45