Manuals / A.O. Smith / Household Appliance / Boiler

A.O. Smith HW 610 warranty Connection Diagram, Schematic Diagram, HW 300 TO I.I.D. SYSTEM

Models: HW 610

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Page 24

HW 300 TO 670

HW 300 TO 670

I.I.D. SYSTEM

CONNECTION DIAGRAM

120 VAC 60 HZ	GND
L1 (HOT) L2 (NEUTRAL)

** FUSED

4 X 4 JUNCTION BOX

WITH TERMINAL STRIP

WHITE

GAS VALVE

IGNITION MODULE

DISCONNECT

SWITCH

THERMAL BALANCER

MV

BROWN

MV

4W

MV/PV

WHITE

MV/PV

** WATER PUMP

** TANK TEMP

PROBE

3Y

1B

2R

BLACK

TRANSFORMER

120/24V

WHITE/TAN

WHITE/TAN

PV

HIGH LIMIT

YELLOW

WHITE

RED

GREEN

PV

24V GND

24V

GND

SPARK

COM NO

**SAFETY FLOW SWITCH (REQUIRED)

COIL LIMIT

TO

PILOT

	SCHEMATIC DIAGRAM
	L1 (HOT)		L2 (NEUTRAL)
		120 VAC 60 HZ
	FUSED	THERMAL
	DISCONNECT	THERMAL
	DISCONNECT	BALANCER
	SWITCH	BALANCER	GND
	SWITCH

	TANK TEMP		WATER PUMP
	PROBE

SAFETY FLOW

SWITCH120V

24V

HIGH LIMIT	COIL
	LIMIT

IGNITION MODULE

CHASSIS

GROUND

MV MV/PV

IGNITOR WIRE TO

PILOT

PV

NOTE: IF REPLACING ANY FACTORY WIRING, USE TYPE 105°C WIRE OR EQUIVALENT, EXCEPT FOR THE IGNITION WIRE WHICH USES 250°C WIRE AND THE COIL LIMIT WHICH USES 200°C WIRE.

	GAS VALVE
	** THESE COMPONENTS	%%UWIRING
	** THESE COMPONENTS
	ARE NOT FACTORY	BY FACTORY
	INSTALLED AND MUST BE	BY FACTORY
	INSTALLED AND MUST BE	BY INSTALLER
	SUPPLIED BY THE	BY INSTALLER
	SUPPLIED BY THE
	INSTALLER.
		192359-000 Rev. 3

SINGLE STAGE I.I.D. - HONEYWELL GAS VALVE

HW (300 thru 670). (NATURAL AND PROPANE GAS) - U.S. & CANADA

FIGURE 16.

24

Image 24

A.O. Smith HW 610 warranty Connection Diagram, Schematic Diagram, HW 300 TO I.I.D. SYSTEM

Contents

INSTALLATION OPERATION MAINTENANCE LIMITED WARRANTY INDOOR ONLY MODELS HW 300, 399, 420, 520, 610UP-FLOW MODELS SAFE INSTALLATION, USE AND SERVICE DANGERIMPORTANT DEFINITIONS GENERAL SAFETY TABLE OF CONTENTS TROUBLESHOOTINGREMOVAL OF EXISTING BOILER FROM A COMMON VENTING SYSTEM DIMENSIONS AND CAPACITY DATA EXTRA OPENING FOR THERMOMETER AND RELIEF VALVE HW-520 AND HW--670TABLE 2, RECOVERY CAPACITIES COMPONENT LOCATIONINTRODUCTION HIGH ALTITUDE INSTALLATIONSPRECAUTIONS GROUNDING INSTRUCTIONSCONTROLS AND FUNCTION HIGH ALTITUDE INSTALLATIONS IN CANADAAUTO RESET HIGH LIMIT IN THE U.S.AMANUAL RESET HIGH LIMIT HIGH LIMIT SWITCHSAFETY FLOW SWITCH TABLE 3 - SAFETY FLOW SWITCH Minimum Pipe RateSAFETY RELIEF VALVES TANK TEMPERATURE CONTROL DANGERGENERAL Water TemperatureTime to Produce 2nd & 3rd Degree Burns on Adult SkinConfined Space a U. S. Installations b Canadian InstallationsAIR REQUIREMENTS Unconfined SpaceVENTING INSTALLATION CLEARANCESA TYPICAL BOILER INSTALLATION VENTING THE BOILER - STANDARD VENTINGVENT PIPE INSTALLATION VENTING MAINTENANCE - STANDARD VENTING VENTING - SIDEWALL OPTIONAL POWER VENT SYSTEMEXAMPLE SHOWING USE OF THE HW-610 COMBINED VENT SIZING TABLE VENTING SYSTEMTABLE 5, COMBINED VENT SIZING TABLES SYSTEM INSTALLATIONS 1. CONVENTIONAL INSTALLATIONS2. LINEAR-TEMP INSTALLATIONS ONE BOILER INSTALLED INDEPENDENT OF THE PRIMARY SYSTEMNO. SUGGESTED ITEMS FOR INSTALLATION SCHEMATIC OF THE LINEAR-TEMP SYSTEMBOILER INLET - OUTLET SIZES MINIMUM BRANCH SIZES TO BOILERSGAS CONNECTIONS SCHEMATIC SHOWING PROPER PIPING ISOLATION5. VENT VALVES 6. MANIFOLD HEADERSPURGING AND SIZING MAXIMUM CAPACITY OF PIPE IN CUBIC FEET OF GAS PERSpecific MultiplierSpecific MultiplierWIRING WIRING CONNECTIONSCONNECTION DIAGRAM SCHEMATIC DIAGRAMHW 300 TO I.I.D. SYSTEM SINGLE STAGE I.I.D. - HONEYWELL GAS VALVE2. LINEAR-TEMP INSTALLATIONS Dual Bulb, Dual Switch Controller Dual Bulb, Dual Switch Controller Staging and Outdoor Reset of Boilers and Secondary Circulator are Controlled byMain Water Temperature CER-TEMP 80 - 1 UNIT INSTALLATION - FOR HOT WATER SUPPLY APPLICATION CER-TEMP 80 - 1 UNIT INSTALLATION - FOR HOT WATER SUPPLY APPLICATIONCANADIAN MODELS, JUNCTION BOX W/6 TERMINALS U.S. MODELS, JUCNTION BOX W/4 TERMINALSCANADIAN MODELS, JUNCTION BOX W/6 TERMINALS SCHEMATIC CANADIAN MODELS, JUNCTION BOX W/6 TERMINALSCER-TEMP 80 - 2 OR 3 UNIT INSTALLATION CONNECTION DIAGRAM FOR HOT WATER SUPPLY APPLICATIONU.S. MODELS, JUNCTION BOX W/4 TERMINALS CER-TEMP 80 - 2 OR 3 UNIT INSTALLATION SCHEMATIC DIAGRAM FOR HOT WATER SUPPLY APPLICATIONU.S. MODELS, JUNCTION BOX W/4 TERMINALS PIPING WIRING - FIGURES 16 and 17 on pages 24 andCOMMERCIAL BOILER WITH VERTICAL TANK USE THIS TABLE FOR CORRECT PUMP AND WATER PIPE SIZEWIRING - FIGURES 16 and 17 on pages 24 and COMMERCIAL BOILER WITH HORIZONTAL TANKUSE THIS TABLE FOR CORRECT PUMP AND WATER PIPE SIZE WIRING - FIGURES 21 to 27 on pages 28 to TWO HW-399s, HW-420s, HW-520s, HW-610s or HW-670s UP-FLOW MODELCOMMERCIAL BOILER WITH VERTICAL TANK, CER-TEMP USE THIS TABLE FOR CORRECT PUMP AND WATER PIPE SIZEWIRING - FIGURES 21 to 27 on pages 28 to COMMERCIAL BOILER WITH HORIZONTAL TANKUSE THIS TABLE FOR CORRECT PUMP AND WATER PIPE SIZE ModelWIRING - FIGURES 21 to 27 on pages 28 to THREE HW-520s, HW-610s OR HW-670s UP-FLOW MODELCOMMERCIAL BOILER WITH VERTICAL TANK, CER-TEMP USE THIS TABLE FOR CORRECT PUMP AND WATER PIPE SIZEWIRING - FIGURES 21 to 27 on pages 28 to USE THIS TABLE FOR CORRECT PUMP AND WATER PIPE SIZEModel Pipe SizeOPERATION AND START-UP INSTRUCTIONS PRECAUTIONSFILLING THE SYSTEM PILOT AND MAIN BURNERPILOT ADJUSTMENT Check for gas leaks and proper boiler and vent operationThe pilot will now ignite provided the system is calling for heat OUTLETCHECKING AND ADJUSTING THE INPUT CONSUMPTION RATE Refer to Operating at Full Input or Full CapacityPOWER INTERRUPTION System shuts off, restarts when power is restored FOR YOUR SAFETY READ BEFORE LIGHTING fire or explosion may result causing property damage, personalLIGHTING INSTRUCTIONS TO TURN OFF GAS TO APPLIANCEFOR YOUR SAFETY READ BEFORE OPERATING T URN OFF ALL ELECTRICAL POWER T O APPLIANCESET T HE THERMOSTAT TO LOWWEST SETTING OPERATING INSTRUCTIONSGENERAL MAINTENANCE MANUAL RESET HIGH LIMIT SWITCH CONTINUITY TESTREMOVAL OF EXISTING BOILER FROM A COMMON VENTING SYSTEM RELIEF VALVECLEANING AND FLUSHING INSTRUCTIONS PRE-TROUBLESHOOTINGHOT WATER SUPPLY BOILERS PREVENTIVE MAINTENANCE INTERNAL CONTAMINANTSTROUBLESHOOTING CER-TEMP 80 RECOVERY SYSTEM CHECKOUT PROCEDURECheckout Sequence System OperationCHECKING HONEYWELL S-8600H OR S-8610M INTERMITTENT IGNITION CONTROLS NO SPARK AT PILOT BURNERNO NO Securely connect cableburner ignition problems? CHECKING HONEYWELL S8600H OR S-8610M INTERMITTENT IGNITION CONTROLSSPARK AT PILOT BURNER BUT PILOT WILL NOT LIGHT Is ceramic insulator surrounding the electrode in goodCHECKING HONEYWELL S-8600H OR S8610M INTERMITTENT IGNITION CONTROLS PILOT BURNER LIGHTS BUT MAIN BURNER DOES NOT LIGHTNO NO NO NOCHECKING HONEYWELL S8600H OR S-8610M INTERMITTENT IGNITION CONTROLS NO SPARK AT PILOT BURNER BUT PILOT WILL NOT LIGHTNO NO NO NO NO NO NO LED STATUS AND TROUBLESHOOTING Service ActionLocation of LEDs Flame LED Yellow Status LED GreenRecommended Service Action Continuous Retry Models C, M, E, and K Only - Green LED Status CodesGreen LED Flash CodeRecommended Service Action Lockout Models B, H, D and J Only - Green LED Status CodesGreen LED Flash CodeLIMITED WARRANTY 3. SERVICE AND REPAIR EXPENSE5. CLAIM PROCEDURE 2. CONDITIONS AND EXCEPTIONS500 Tennessee Waltz Parkway, Ashland City, TN Technical Support 800-527-1953 Parts 800-433-2545 Fax