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Lochinvar GAS HEATER FOR COMMERICAL POOL APPLICATIONS Ladder Diagram, Commercial Pool Heaters

Models: GAS HEATER FOR COMMERICAL POOL APPLICATIONS

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Commercial Pool Heaters

LADDER DIAGRAM

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Lochinvar GAS HEATER FOR COMMERICAL POOL APPLICATIONS service manual Ladder Diagram, Commercial Pool Heaters

Contents

INSTALLATION AND SERVICE MANUAL Save this manual for future referenceWHAT TO DO IF YOU SMELL GAS •Do not try to light any applianceTable of Contents Commercial Pool HeatersTable of Contents Safety InformationInstallation and Service Manual SAFETY INFORMATIONWarranty GENERAL PRODUCT INFORMATIONCommercial Pool Heaters •do not try to light any appliancePRODUCT IDENTIFICATION Installation and Service ManualFigure 1A - Standard Horizontal Piping Loop Figure 1B - Optional Vertical Piping LoopINSTALLATION Clearances from Combustible ConstructionBase for Combustible Floors Commercial Pool HeatersFREEZE PROTECTION COMBUSTION AND VENTILATION AIRTABLE - A COMBUSTIBLE FLOOR KITS Input Btu/hrINSTALLATION Continued Combustion Air OptionsOne Opening Two OpeningsExhaust Fans Installation and Service Manual2. Outside Combustion Air, Using Ducts 3. Outside Combustion Air, Using Direct VentingVENTING General InformationVenting Support Vertical Vent Termination Clearances and LocationTABLE - B Flue and Air Inlet Pipe Sizes Sidewall Vent Termination Clearances and LocationInstallation and Service Manual Combustion Air Inlet Piping Length of Air Inlet PipeSidewall Air Inlet INSTALLATION ContinuedVertical Rooftop Air Inlet Combined Air Inlet PointsClearances Installation and Service ManualVent System Options 1.Conventional Negative Draft VentingNegative Draft INSTALLATION ContinuedFlue Outlet Piping Installation and Service ManualMasonry Chimney Installations Common Venting Systems2. Vertical DirectAire Venting Draft Venting, pageINSTALLATION Continued Commercial Pool HeatersVent Kits 3. Sidewall VentingVenting of Flue Products Installation and Service ManualDrain Tee Installation Sidewall FanSidewall Venting Termination Sidewall Venting Without FanFigure 22B – Sidewall Venting Masonry Chimney InstallationInstallation and Service Manual 4. Horizontal DirectAire Venting Clearances and Location pageINSTALLATION Continued Commercial Pool Heaters5. Direct Venting Installation and Service ManualDrain Tee Installation Flue Outlet PipingINSTALLATION Continued Masonry Chimney InstallationCommercial Pool Heaters Vertical DV Venting TerminationInstallation and Service Manual Figure 24 – Attaching DV Box Adapter to UnitFigure 26 – Vertical Rooftop Air Inlet INSTALLATION ContinuedCommercial Pool Heaters 6. Outdoor Installation Venting Multiple Sidewall Direct Vent InstallationsVertical Combustion Air Inlet Clearances Horizontal Combustion Air Inlet ClearancesCombustion Air Fan Adjustment for startup CONNECTING TO GAS SUPPLYGas Pressure Test INSTALLATION ContinuedConnecting Gas Piping to the Pool Heater Gas PipingGas Train and Controls Installation and Service ManualCombination Gas Valves Venting of Combination Gas ValvesChecking Gas Supply Pressure TABLE-JTABLE - K Installation and Service ManualWARNING: After completing any testing on Combination Gas ValveGas Manifold Pressure Adjustment Maintenance, page 49 for Combustion Air FanAdjustment Follow the procedure to adjust thePOOL HEATER PIPING INSTALLATION Auxiliary Mixed Water Limit ControlPumped Automatic Bypass Installation and Service ManualINSTALLATION Continued Figure 33 – 3-WayValve Cover Connection DiagramCommercial Pool Heaters Figure 32 – 3-WayValve CoverInstallation and Service Manual Figure 34 - Heater is Within 15 Feet of Pool PipingFigure 36 - Heaters are within 15 feet Perpendicular of Pool Piping INSTALLATION ContinuedCommercial Pool Heaters Water Flow Switch Relief ValveAutomatic Chlorinator and Chemical Feeders Installation and Service ManualPUMP PURGE / MAINTENANCE TIMER OPTION CONNECTING TO ELECTRICAL SUPPLYPump Purge Delay Option Service Indicator OptionInstallation and Service Manual TABLE-M Remote Wire ConnectionTerminal Strip Connection Options FOR YOUR SAFETY READ BEFORE OPERATING OPERATIONLighting Instructions INSTALLATION ContinuedPre-StartChecklist To Turn Off Gas To Pool HeaterStarting the Filter System Commercial Pool HeatersCommercial Pool Heaters OPERATING TEMPERATURE CONTROLOPERATION Continued Programming Mode Installation and Service ManualHOT SURFACE IGNITION SYSTEM Hot Surface Igniter and Ignition Control ModuleHot Surface Ignition Control Module Commercial Pool HeatersAccess to Internal Control Panel TABLE-N Ignition Control Diagnostic CodesRemoving the Control Panel Hot Surface Ignition Module Timings NominalOPERATION AND DIAGNOSTIC INDICATORS TABLE-O Status LED Diagnostic CodesWater Chemistry Commercial Pool HeatersTABLE-Q AMP Draw Data TABLE-P Recommended Water ChemistryTest Recommended LevelTABLE-R Pipe Sizing Chart Pipe Size RequirementsCirculating Pump Minimum Pump PerformanceCLEANING AND MAINTENANCE High Water Temperature Limit ControlFlue Gas Passageways Cleaning Procedures Appliance AreaCLEANING AND MAINTENANCE Continued Burner Removal and CleaningHeat Exchanger Cleaning ElectricalAdjusting Differential Air Pressure Installation and Service ManualAdjustment Procedure Servicing Hot Surface Igniter and Ignition ModuleIgnition System Checkout CLEANING AND MAINTENANCE ContinuedInstallation and Service Manual SEQUENCE OF OPERATIONENERGY SAVING RECOMMENDATIONS GLOSSARY Commercial Pool HeatersInstallation and Service Manual PREPURGEIGNITER WARM-UPAND PROVING IGNITERWIRING BOX CONNECTIONS Commercial Pool HeatersInstallation and Service Manual WIRING BOX CONNECTIONSLADDER DIAGRAM Commercial Pool HeatersCONTROL BOX CONNECTIONS Installation and Service ManualCommercial Pool Heaters Unit Start Up ChecklistAppendix A Installation and Service Manual Appendix B Adjust Menu Settings for Operating ModesAdvanced settings View Menu Information6/06-Printedin U.S.A