Lochinvar GAS HEATER FOR COMMERICAL POOL APPLICATIONS service manual Ladder Diagram

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Commercial Pool Heaters

LADDER DIAGRAM

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Contents GAS Heaters for Commercial Pool Applications Commercial Pool Heaters General Product Information UnpackingCommercial Pool Heaters Product Identification Clearances from Combustible Construction Base for Combustible FloorsFreeze Protection Combustion Air FilterInstallation Combustion Air OptionsExhaust Fans Combustion Air from Interior SpaceVertical Vent Termination Clearances and Location General InformationVenting Support Sidewall Vent Termination Clearances and Location Table BSidewall Air Inlet Combustion Air Inlet PipingLength of Air Inlet Pipe Vertical Rooftop Air Inlet Combined Air Inlet PointsNegative Draft Vent System OptionsConventional Negative Draft Venting Common Venting Systems Masonry Chimney InstallationsFlue Outlet Piping Vertical DirectAire Venting Inspection of a Masonry ChimneyVenting of Flue Products Vent KitsSidewall Venting Sidewall Venting Without Fan Sidewall FanSidewall Venting Termination Masonry Chimney Installation Horizontal DirectAire Venting TABLE-EDirect Venting Combustion Air Inlet Piping Horizontal DV Venting TerminationFlue Pipe Materials Sealing Type-B Doublewall Vent Pipe or Galvanized Vent Pipe Length of Air Inlet PipeAir Inlet Piping Materials Combined Combustion Air Inlet Points Vertical Rooftop Air InletOutdoor Installation Venting Outdoor Vent/Air Inlet LocationCombustion Air Fan Adjustment for startup 3-Way Valve Cover InstallationGas Pressure Test Outdoor Vent Cap KitGas Train and Controls Connecting Gas Piping to the Pool HeaterGas Piping Combination Gas Valves Venting of Combination Gas ValvesChecking Gas Supply Pressure TABLE-JMultiple Unit Installations Gas Supply Pipe Sizing Table KGas Manifold Pressure Adjustment Measuring Net Manifold Gas PressureAuxiliary Mixed Water Limit Control Pumped Automatic BypassWay Valve Cover Heater is Within 15 Feet of Pool Piping Heaters are within 15 feet Perpendicular of Pool Piping Automatic Chlorinator and Chemical Feeders Water Flow SwitchRelief Valve Way Automatic Bypass Valve Wiring Pump Purge Delay OptionService Indicator Option Terminal Strip Connection Options TABLE-MOperation Lighting InstructionsStarting the Filter System Pre-Start ChecklistTo Turn Off Gas To Pool Heater Operation Programming Mode Error Messages Displayed by the Temperature ControllerDiagnostic Status Indication Hot Surface Igniter and Ignition Control ModuleHot Surface Ignition Control Module Ignition Module Lockout FunctionsIgnition and Control Timings Access to Internal Control PanelTABLE-N Water Chemistry TABLE-OTABLE-P Test Recommended LevelPipe Size Requirements Circulating PumpMinimum Pump Performance Heat ExchangerHigh Water Temperature Limit Control Flue Gas Passageways Cleaning ProceduresAppliance Area Water Circulating PumpBurner Removal and Cleaning Heat Exchanger CleaningElectrical Combustion and Ventilation AirAdjusting Differential Air Pressure Fan CleaningCombustion Air Fan Adjustment Set-Up ProcedureIgnition System Checkout Adjustment ProcedureServicing Hot Surface Igniter and Ignition Module Sequence of Operation Glossary Prepurge Wiring BOX Connections Wiring BOX Connections Ladder Diagram Control BOX Connections Commercial Pool Heaters Appendix a Appendix B View Menu Item Menu Description