External Auxiliary Bypass Valve Where Required

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Contents

INSTALLATION & OPERATING INSTRUCTIONS Raytherm Commercial Swimming Pool HeaterModels P-926to P-1826 & P-2100to P-4001 Corrosive water voids all warranties CONTENTS WARNINGS Pay Attention to These TermsDANGER Base Installation RECEIVING EQUIPMENT INSTALLATIONGENERAL SPECIFICATIONS Code Requirements Indoor Heaters ClearancesCombustion Air Indoor Units Only Outdoor Heaters Venting Connections Drafthood Indoor ModelsVent Piping Gas Supply Connections Gas Pressure Regulator 1-1/4” Venting of Diaphragm Gas ComponentsModel 1-1/2” Flow Switch CONTROLSWater Connections Unitherm Governor Operation Water Pressure SwitchAutomatic Chlorinators and Chemical Feeders Companion Flange Connections Models Minimum Model NoConnection Model No. Loop* Flow Rates Heater Flow 2.Lace metal strapping or clamps, NOT PROVID- ED through the ¾” slots on the cover and fasten securely to pipe as shown in Fig. 15 & 16. Do not over-tightenclamps HEATER Models 0926 thru 1223 with UG BLENDEDWATER TEMPERATURE RECOMMENDED FIELD INSTALLEDISOLATION VALVESFORSERVICE THERMOMETERATHEATERINLET Models 2100 thru HEATEROUTLETTEMPERATURETHERMOMETER 926-1223Models Only External Auxiliary Bypass Valve Where RequiredAuxiliary Bypass Valve Adjustment Temperature Controls Low Water Cutoff Electrical WiringHigh & Low Gas Pressure Switches Electronic Ignition Wiring Diagram-Models Wiring Diagram-Models Wiring Diagram-Models Wiring Diagram-Models SERVICING Pressure SwitchPressure Switch Adjustment General Location Of Controls Two-SpeedPumps START-UP PROCEDURESPilot Safety Before Start-Up INSPECTION PROCEDURES After Start-UpBurners Burner Drawer Removal SERVICING PROCEDURESTube Cleaning Procedure Typical Gas Valve Removal Main Burner and Orifice Removal Pilot Removal and CleaningHeat Exchanger Reassembly Heat Exchanger Removal Procedure For Cleaning Flue Gas Passageways Control Well ReplacementTube Replacement Procedure Combustion Chamber Removal UNITHERM GOVERNOR WITH POWER ELEMENT MAINTENANCE AND CAREUnitherm Governor Replacement INLET/OUTLET HEADER OUTLET INLET GASKET Winterizing Your Heater TROUBLESHOOTING MECHANICAL FOR QUALIFIED SERVICE PERSONNEL ONLYIMPORTANT NOTICE Clean filter or refer to heater sizing chartReset time clock Refer to installation instructions ELECTRICAL ELECTRONIC IGNITION IID IID TROUBLESHOOTING HONEYWELL S8600Intermittent Pilot System START ADDITIONAL WARRANTY EXCLUSIONS LIMITED WARRANTY RAYTHERM TYPE P SIZESHEAT EXCHANGER WARRANTY PARTS REPLACEMENT

Raypak P-926 External Auxiliary Bypass Valve Where Required, 926-1223Models Only, High Limits

Models: P-2100 P-926 P-4001 P-1826