Manuals / Raypak / Lawn and Garden / Swimming Pool Heater

Raypak 266A, 406A, 206A Servicing Instructions, General Location Of Controls Atmospheric, LOW NOx

Models: 266A 267A 207A 336A 337A 407A 206A 406A

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SECTION 4 - SERVICING INSTRUCTIONS

GENERAL LOCATION OF CONTROLS

ATMOSPHERIC

Drain Plug

(Located in rear header)

Mounted On Top

Of Header

HL1 - High Limit

HL2 - High Limit

Pressure Switch

Temp Sensor/Well

Digital Thermostat

Circuit Board

Unitherm Governor

Draw Plug

Roll-Out

Switch

Transformer

Gas Valve

Pilot

LOW NOx

Drain Plug

(Located in rear header)

Blower

Relay

Mounted On Top

Of Header

HL1 - High Limit

HL2 - High Limit

Pressure Switch

Temp Sensor/Well

	Digital Thermostat	Unitherm
	Digital Thermostat	Governor
Blower	Circuit Board	Governor
Blower	Circuit Board
Hose
	Roll-Out
Blower	Switch
Blower	(Manual)
	(Manual)	Draw Plug
		Draw Plug
Roll-Out	Gas Valve
Switch
(Auto)	Air
	Air
	Switch
		Transformer
		Pilot

Page 31

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Raypak 266A, 406A, 206A, 407A, 337A, 336A, 207A, 267A Servicing Instructions, General Location Of Controls Atmospheric, LOW NOx

Contents

Low NOx Models INSTALLATION AND OPERATING INSTRUCTIONSGAS-FIRED POOL AND SPA HEATER Atmospheric ModelsTypes INSTALLATION & SERVICE INSTRUCTIONS CONTENTSSTART-UP PROCEDURES MAINTENANCE & CARE PROCEDURESBEFORE START-UP PART ONE OWNERS OPERATING INSTRUCTIONSSECTION 1 - START-UP PROCEDURES FOR YOUR SAFETY - READ BEFORE OPERATINGWHAT TO DO IF YOU SMELL GAS LIGHTING INSTRUCTIONS AND SHUT-OFF PROCEDURESSHUT-OFF PROCEDURE MANUALLY LIGHTED PILOTWHAT TO DO IF YOU SMELL GAS *Do not try to light any appliance OPERATING INSTRUCTIONS AND SHUT-OFF PROCEDURESSHUT-OFF PROCEDURES AUTOMATICALLY LIGHTED PILOTVISUAL INSPECTION - ATMOSPHERIC HEATERS WATER PRESSURE SWITCHSECTION 2 - CAUTION AFTER START-UPAUTOMATIC CHLORINATORS AND CHEMICAL FEEDERS SECTION 3 - MAINTENANCE AND CARE PROCEDURESSee plumbing diagram page POOL & SPA WATER CHEMISTRYCOLD WEATHER OPERATION IMPORTANT FREEZE INFORMATIONWINTERIZING THE POOL & SPA HEATER ASME UNIT CAST IRON HEADERS PART TWO INSTALLATION AND SERVICE INSTRUCTIONSSECTION 1 - RECEIVING EQUIPMENT STANDARD UNIT POLYMER HEADERSIMPORTANT NOTICE Ambient Temperature Rating of Heater ComponentsAtmospheric heaters Low NOx heatersCLEARANCES CLEARANCE FROM COMBUSTIBLE CONSTRUCTION INDOOR INSTALLATIONSOUTDOOR INSTALLATION OUTDOOR HEATER INSTALLATION3 ft FLORIDA BUILDING CODE 206/266/336/406 AtmosphericINDOOR STACK KIT INCLUDES INDOOR HEATER INSTALLATIONOUTDOOR STACK / INDOOR STACK OUTDOOR STACK KIT INCLUDESATMOSPHERIC UNITS SPECIFICATIONS AND DIMENSIONS3/4” SPECIFICATIONS AND DIMENSIONSLow NOx UNITS R207AModel Power Vent Kit Model Part NoFor more information consult the D-2 Power Vent manual, Catalog No COMBUSTION AND VENTILATION AIR Indoor Units OnlyDRAFT HOOD HEATER B149.1 and B149.2GAS SUPPLY CONNECTIONS 10 OR LESS VENT CAP 2 MIN 2 MIN 5 MIN VENT PIPERobertshaw 7000 BDER GAS PRESSURE ADJUSTMENT LOCATIONSGAS PRESSURE REGULATOR RobertshawFLOW RATES PLUMBING FOR WATER CONNECTIONSUNITHERM GOVERNOR OPERATION CAST IRON HEADERS ASME MODELSEXTERNAL AUXILIARY BYPASS VALVE PRESSURE RELIEF VALVE INSTALLATIONAUXILIARY BYPASS VALVE ADJUSTMENT INTERNAL AUTOMATIC BYPASS VALVEFLOW HEAT EXCHANGER PRESSURE DROP TABLESPOLYMER HEADER STANDARD MODELS CAST IRON HEADER ASME MODELSHEAT EXCHANGER REVERSAL PROCEDURE - STANDARD MODELS MILLIVOLT MODELS ELECTRICAL WIRINGDIGITAL MODELS 120 VAC WIRING TRANSFORMER WIRING240 VAC WIRING WIRING DIAGRAM - MILLIVOLT MECHANICAL THERMOSTAT WIRING DIAGRAM - DIGITAL MODELS - ATMOSPHERIC WIRING DIAGRAM - DIGITAL MODELS - LOW NOx GENERAL LOCATION OF CONTROLS ATMOSPHERIC SECTION 4 - SERVICING INSTRUCTIONSLOW NOx CONTROL ADJUSTMENTS - MILLIVOLT MODELS CONTROL ADJUSTMENTS - DIGITAL MODELSCONTROL PANEL REMOVAL THERMOSTAT CONTROL OPERATION Mode ButtonFault History File DIGITAL THERMOSTAT CONTROLS Thermostat operationF/Cfff - Fahrenheit to Celsius SETdef - Default SettingsRESfl - Reset Fault History Program ButtonSTATUS CODES DIAGNOSTICSREADING A FAULT FAULT CODESREMOTE OPERATION REMOTE CONTROL INSTALLATION AND OPERATIONACTIVATING THE REMOTE See instructions on previous page to activate the remote control REMOTE CONTROL WIRING2-Wire Remote Control On-Off See instructions on previous page to activate the remote controlPILOT SAFETY - Digital Models WATER PRESSURE SWITCHFLAME ROLL-OUT SAFETY SWITCH PILOT SAFETY - Millivolt ModelsMAIN BURNER AND ORIFICE REMOVAL PILOT REMOVAL AND CLEANINGBURNER TRAY REMOVAL GAS VALVE REMOVALUNITHERM GOVERNOR U.G. REPLACEMENT TUBE CLEANING PROCEDUREDESOOTING PROCEDURE IMMERSION WELL REPLACEMENTLOW NOx POOL HEATERS START-UP PROCEDURESBLOWER ADJUSTMENT FLAME ROLL-OUT SAFETY SWITCHGAS VALVE REMOVAL LOW NOx HEATERS CONTINUEDMAIN BURNER AND ORIFICE REMOVAL BURNER TRAY REMOVALIndicates symptom which usually occurs on initial start-up SECTION 5 - TROUBLESHOOTINGMECHANICAL ELECTRICAL CHECK WITH MILLIVOLT GAS VALVE ELECTRICAL - STANDING PILOT MILLIVOLT POOL OR SPA HEATERFor qualified technicians ONLY ELECTRICAL - ELECTRONIC IGNITION IID WARNING HIGH VOLTAGEminutes maximum Diagnostic ReadoutsDIGITAL CONTROL LOGIC - FLOW CHART NO NO NOMANUFACTURER SECTION 6 - REPLACEMENT PARTSATMOSPHERIC HEATERS LOW NOx HEATERS IID LOW NOx PILOT POLYMER IN/OUT HEADER AND ACCESSORIESHONEYWELL IID ATMOSPHERIC PILOT HONEYWELL MILLIVOLT PILOT206A ATMOSPHERIC HEATERSCALL DESCRIPTIONCALL ATMOSPHERIC HEATERSATMOSPHERIC HEATERS BURNER TRAY LOW NOx HEATERSCALL DESCRIPTIONLOW NOx HEATERS