Raypak 406A Maintenance and Care Procedures, If Heater will not Fire, Pool & SPA Water Chemistry

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SECTION 3 - MAINTENANCE AND CARE PROCEDURES

To be followed one month after start-up and then semi- annually.

1.Inspect top of heater and drafthood for soot, a sticky black substance around finned tubes and "V" baffles, and open flue gas passageways. Any visible soot should be cleaned for proper opera- tion.

CAUTION: Soot may be combustible. Wet sooted surfaces completely prior to cleaning. Do not use steel wire brush.

2.Clean main burners and pilot burner of dust and lint.

3.Inspect and operate all controls, gas valve and pressure relief valve (if equipped).

4.Make visual check of the burner and pilot flames. Flame pattern on the main burner and pilot is illus- trated on page 7. Yellow flame means restriction of the air openings. Lifting or blowing flame indi- cates high gas pressure. Low flame means low gas pressure. Should the latter occur, shut the heater off and contact your gas supplier or quali- fied service agency.

5.On indoor heaters, clean room intake openings to ensure adequate flow of combustion and ventila- tion air.

CAUTION: Combustion air must not be contaminat- ed by corrosive chemical fumes which can damage the heater and void the warranty.

6.Keep area around heater clear and free from com- bustible materials, gasoline and other flammable and corrosive vapors and liquids.

IF HEATER WILL NOT FIRE:

If you have no electrical power, it may be that your "circuit breaker" has tripped. Try re-setting it.

If you have electrical power but the heater will not fire check the following or see Troubleshooting section:

1.The time clock must be in the "ON" position.

2.Your pump strainer basket may be full. If so remove debris.

3.Your filter may be dirty. If so, backwash or clean filter. (To tell if your filter is dirty, look to see if the filter pressure will be higher than usual).

4.The pump may have lost its prime and be running dry. Check the pressure on the filter. If there is no pressure; then you are not moving water (or your gauge is broken). Try to get the pump to run at its normal flow rate.

POOL & SPA WATER CHEMISTRY

Chemical imbalance can cause severe damage to your heater and associated equipment. Maintain your water chemistry according to the chart on page 2. If the mineral content and dissolved solids in the water become too high, scale forms inside the heat exchang- er tubes, reducing heater efficiency and damaging the heater. If the pH drops below 7.2, this will cause cor- rosion of the heat exchanger and severely damage the heater. Heat exchanger damage resulting from chem- ical imbalance is not covered by the warranty.

AUTOMATIC CHLORINATORS AND

CHEMICAL FEEDERS

All chemicals must be introduced and completely dilut- ed into the pool or spa water before being circulated through the heater. Do not place sanitizing chemicals in the skimmer. High chemical concentrations will result when the pump is not running (e.g. overnight).

Chlorinators must feed downstream of the heater and have an anti-siphoning device to prevent chemical back-up into the heater when the pump is shut off.

See plumbing diagram page 21.

NOTE: High chemical concentrates from feeders and chlorinators that are out of adjustment will cause rapid corrosion to the heat exchanger. Such damage is not covered under the warranty.

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Contents Installation and Operating Instructions What to do if YOU Smell GASWater Chemistry MaximumContents Before START-UP Burners Water START-UP ProceduresFor Your Safety Read Before Operating Millivolt System Operating Instructions and SHUT-OFF Procedures SHUT-OFF ProceduresElectronic Ignition System Automatically Lighted PilotVisual Inspection Atmospheric Heaters Water Pressure SwitchAfter START-UP Maintenance and Care Procedures See plumbing diagramIf Heater will not Fire Pool & SPA Water ChemistryWinterizing the Pool & SPA Heater Important Freeze InformationCold Weather Operation Part TWO Installation and Service Instructions Receiving EquipmentGeneral Specifications Installation InstructionsImportant Notice Code RequirementsOutdoor Installation Outdoor Heater InstallationClearances ALL Heaters10 ft Florida Building Code Wind Speed = 150 MPH, 3 Second Gust Exposure = CIndoor Heater Installation Outdoor Stack Indoor StackSpecifications and Dimensions Atmospheric UnitsLow NOx Units Power Vent Kit Model Part No Combustion and Ventilation AIR Indoor Units OnlyModel Square Inches Vent PipingB149.1 and B149.2 GAS Supply ConnectionsPipe Sizing for GAS Connections GAS Pressure Adjustment LocationsGAS Pressure Regulator Polymer Headers Cast Iron Headers Asme Plumbing for Water ConnectionsFlow Rates INLET/OUTLET Header Polymer Cast Iron Headers Asme ModelsINLET/OUTLET Header Asme Unitherm Governor OperationAuxiliary Bypass Valve Adjustment External Auxiliary Bypass ValveCast Iron Header Asme Models Heat Exchanger Reversal Procedure Standard Models Fig. #4Electrical Wiring Millivolt ModelsDigital Models Atmospheric240V Atmospheric Heater Transformer Wiring VAC Wiring120V Atmospheric Heater Wiring Diagram Millivolt Mechanical Thermostat Wiring Diagram Digital Models Atmospheric Wiring Diagram Digital Models LOW NOx LOW NOx Servicing InstructionsGeneral Location of Controls Atmospheric Control Panel Removal Control Adjustments Digital ModelsControl Adjustments Millivolt Models Digital Thermostat Controls Thermostat Control OperationSETdef Default Settings RESfl Reset Fault HistoryProgram Button Cfff Fahrenheit to CelsiusDiagnostics Reading a Fault Fault CodesStatus Codes Program Modes Display DefinitionActivating the Remote Remote Control Installation and OperationRemote Operation Remote Control Wiring Wire Remote Control On-OffFlame ROLL-OUT Safety Switch Pilot Safety Millivolt ModelsPilot Safety Digital Models High LimitsPilot Removal and Cleaning Burner Tray RemovalGAS Valve Removal Main Burner and Orifice RemovalTube Cleaning Procedure Desooting ProcedureImmersion Well Replacement Unitherm Governor U.G. ReplacementBlower Adjustment LOW NOx Pool HeatersOperation Visual InspectionPilot Removal Combustion Blower RemovalTroubleshooting MechanicalPage Electrical Electronic Ignition IID For qualified technicians onlyDigital Control Logic Flow Chart YESEastman Avenue OXNARD, CA Replacement PartsManufacturer Atmospheric Heaters LOW NOx Heaters IID LOW NOx Pilot Call OUT Description Call OUT Description Sheetmetal Call OUT Description 267A