Lochinvar CG200, CG150 warranty Copyright 2011 Lochinvar, LLC, All rights reserved

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300 Maddox Simpson Parkway

Lebanon, TN 37090

Phone: 615-889-8900 • Fax: 615-547-1000 Technical Service email: 2tech@lochinvar.com www.Lochinvar.com

Copyright © 2011 Lochinvar, LLC, All rights reserved.

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Contents Models CGN,L150 & CGN,L200 Recovery Rating Capacities GPH AT Temperature Rise Shown ROUGH-IN-DIMENSIONSForeword Table of Contents Features High Altitude InstallationsExtended NON-USE Periods Insulation BlanketsHigh Limit Switch Exhaust Inducer Blower AssemblyElectronic Ignition Control Circulating PumpRequired Ability UncratingLocating the Heater LevelingVenting Confined SpaceMultiple Heater Manifold Water Line ConnectionsWater Potable Heating Space Heating Relief ValveGAS Piping PurgingGAS Pressure Regulator Length Nominal Iron Pipe Sizes Inches FeetHeater Wiring Single Unit Wiring DiagramInstallation Diagrams GeneralVertical Storage Tank and Forced Circulation Horizontal Storage Tank and Forced CirculationPage Circulating Return Line Connection Heater with Mixing Valve and Recirculated Sanitizing Loop TWO PRE-HEATERS with Booster Heater Horizontal Storage Tank Operation Sequence of OperationFor Your Safety Read Before Operating What to do if YOU Smell GASPreventive Maintenance Water Temperature ControlCheck the Ignitor Assembly Ignitor AssemblyRemote Storage Tank Temperature Control GAS ValvesChecking the Input Venting SystemHOT Water Odor Anode ROD InspectionFlushing DrainingTank Cleanout Procedure System DiagnosticsDeliming Solvents Ignition Module SystemReplacement Parts ServiceElectrical Servicing Sequence of Operation Flow Chart Ignitor afterComplaint Cause User Serviceman Operational ChecklistRemedy Limited Warranty Copyright 2011 Lochinvar, LLC, All rights reserved