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A.O. Smith Residential Power Vent Gas Water Heaters with Hot Surface Ignition instruction manual

Models: Residential Power Vent Gas Water Heaters with Hot Surface Ignition

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NOT FOR USE IN MANUFACTURED (MOBILE) HOMES

Instruction Manual for Residential Power Vent Gas Water Heaters with Hot Surface Ignition

NOT FOR USE IN MANUFACTURED (MOBILE) HOMES

GAMA certification applies to all residential gas water heaters with capacities of 20 to 100 gallons with input rating of 75,000 BTU/Hr. or less.

ALL TECHNICAL AND WARRANTY QUESTIONS: SHOULD BE DIRECTED TO THE LOCAL DEALER FROM WHOM THE WATER HEATER WAS PURCHASED. IF YOU ARE UNSUCCESSFUL, PLEASE WRITE TO THE COM- PANY LISTED ON THE RATING PLATE ON THE WATER HEATER.

For Your Safety AN ODORANT IS ADDED TO THE GAS

USED BY THIS WATER HEATER

						WARNING
						WARNING
	WARNING: If the information in these
	WARNING: If the information in these			Improper installation, adjustment, alteration,
	instructions are not followed exactly, a fire			service or maintenance can cause DEATH, SERI-
	or explosion may result, causing property			OUS BODILY INJURY, OR PROPERTY DAM-
	damage, personal injury or death.			AGE. Refer to this manual for assistance or con-
				sult the local gas utility for further information.
	–Do not store or use gasoline or other			sult the local gas utility for further information.


	flammable vapors and liquids in the vicinity
	of this or any other appliance.
	–WHAT TO DO IF YOU SMELL GAS					WARNING
	–WHAT TO DO IF YOU SMELL GAS					WARNING
	• Do not try to light any appliance.			Flammable vapors may be drawn by air cur-
	• Do not touch any electrical switch; do not			rents from other areas of the structure to this
	use any phone in your building.			appliance.
	• Immediately call your gas supplier from a
	• Immediately call your gas supplier from a
	neighbor’s phone. Follow the gas supplier’s
	instructions.
	• If you cannot reach your gas supplier, call
	• If you cannot reach your gas supplier, call					WARNING
	the fire department.
	the fire department.			READ THE GENERAL SAFETY SECTION BEGIN-
	–Installation and service must be performed			NING ON INSIDE COVER AND THEN THIS
	by a qualified installer, service agency or the			ENTIRE MANUAL BEFORE INSTALLING OR
	gas supplier.			OPERATING THIS WATER HEATER.


Save this Manual for Future Reference.			184326-001
			11-03

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A.O. Smith Residential Power Vent Gas Water Heaters with Hot Surface Ignition instruction manual

Contents

NOT FOR USE IN MANUFACTURED MOBILE HOMES The Discharge Pipe General SafetyMust not be plugged or blocked a. DO NOT cover the temperature-pressure relief valve General Safety cont’dILY INJURY, OR PROPERTY DAMAGE Table of Contents Introduction Preparing for the New InstallationMANUAL BEFORE ATTEMPTING TO INSTALL OR OPERATE THE WATER HEATER Abbreviations Found In This Instruction ManualSome models are equipped with circulating loop fittings Typical InstallationFacts to Consider About the Location Locating the New Water HeaterFacts to Consider About the Location cont’d Locating the New Water Heater cont’dCombustion Air and Ventilation Venting Through Roof - Clearances Locating the New Water Heater cont’dFigure 3a Figure 3bb. ALL AIR FROM OUTDOORS see Figures Locating the New Water Heater cont’dWater Piping Installing the New Water HeaterTemperature-Pressure Relief Valve Installing the New Water Heater cont’dthe temperature-pressure relief valve, and the discharge pipe RELIEF VALVE OPENINGFilling the Water Heater WiringInstalling the New Water Heater cont’d OPTIONAL Field Installed WiringInstalling the New Water Heater cont’d Wiring cont’dOPTIONAL Field Installed Wiring cont’d WIRING DIAGRAMInstalling the New Water Heater cont’d VentingVENTING THROUGH AN OUTSIDE WALL See rating plate for BTU/HR ratingInstalling the New Water Heater cont’d Venting cont’dVENTING THROUGH AN OUTSIDE WALL cont’d 4″ PVC, ABS or CPVC Schedule 40 vent pipingThe vent piping may be installed as follows Installing the New Water Heater cont’dVENTING SYSTEM EXAMPLE INSTALLATIONS FOR ALL MODELS NOTE See pages 21 and 22 for vertical venting through a roofVenting cont’d Installing the New Water Heater cont’dVENTING THROUGH AN OUTSIDE WALL cont’d 40 AND 50 GALLON 40,000 BTU/HR MODELS 3″ VENTCementing PVC, ABS or CPVC Pipe and Fittings Installing the New Water Heater cont’d3″ DIA. VENT NUMBER OFCUTTING OPENING THROUGH AN OUTSIDE WALL AND COLLAR INSTALLATION Installing the New Water Heater cont’dINSTALLATION SHOWING USE OF PVC, ABS OR CPVC PIPE CONNECTING VENT TO BLOWERVENTING THROUGH A ROOF ALL MODELS Installing the New Water Heater cont’d3″ PVC, ABS or CPVC Schedule 40 vent piping 4″ PVC, ABS or CPVC Schedule 40 vent pipingInstalling the New Water Heater cont’d Gas PipingVENTING THROUGH A ROOF cont’d 3″ DIA. VENTGAS PIPING WITH FLEXIBLE CONNECTOR Installing the New Water Heater cont’dGAS PIPING WITH ALL BLACK IRON PIPE TO GAS CONTROL SEDIMENT TRAPInstalling the New Water Heater cont’d Installation ChecklistBEFORE OPERATING THE HEATER MODEL RATING PLATEBEFORE THE WATER HEATER WILL OPERATE Operating75 GALLON 70,000 AND 75,000 BTU/HR OPERATIONTHIS WATER HEATER. FOR YOUR SAFETY IF YOU SMELL GAS Operating cont’dMake sure gas and electric power are connected properly AN ODORANT IS ADDED TO THE GAS USED BYWARNING TURN OFF ALL ELECTRIC POWER BEFORE SERVICING FOR YOUR SAFETY READ BEFORE OPERATINGOperating cont’d OPERATING INSTRUCTIONSTemperature Regulation Start Up Conditions For Your InformationOperational Conditions VENTING MANUAL RESET SWITCH For Your Information cont’dSMELLY WATER cont’d “AIR” IN HOT WATER FAUCET’SBurner Cleaning Periodic MaintenanceVenting System Inspection Burner InspectionTemperature-Pressure Relief Valve Operation Periodic Maintenance cont’dHousekeeping Anode Rod InspectionService Drain Valve Washer ReplacementDraining Periodic Maintenance cont’dfaucet before turning “ON” gas to the water heater Leakage CheckpointsTHERMOSTAT AND GAS SUPPLY CHECK TroubleshootingSYSTEMS CHECK Troubleshooting cont’dPROBLEM Troubleshooting cont’dSOLUTION Thermostat problemsBlower/Draft Hood Assembly for 40,000 Btu/Hr Models Only Repair PartsPVC, ABS or CPVC items for all models supplied locally THIS IS A REPAIR PARTS LIST, NOT A PACKING LIST Repair Parts cont’dPART DESCRIPTION