Manuals / A.O. Smith / Household Appliance / Water Heater

A.O. Smith Residential Power Vent Gas Water Heaters with Hot Surface Ignition Repair Parts cont’d

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

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Repair Parts (cont’d)

KEY	PART
NO.	DESCRIPTION
1.	Vent Cap w/Screen (PVC)
2.	Wall Collar
3.	PVC, ABS or CPVC Schedule 40
	Vent Pipe (supplied locally)
4.	90° PVC, ABS or CPVC Schedule 40
	Elbow (supplied locally)
5.	Vent/Blower Adapter
6.	Blower
7.	Blower Gasket
8.	Venting Manual Reset Switch
9.	Draft Hood Assembly
10.	Dip Tube
11.	Anode Rod
12.	Temperature-Pressure Relief Valve
13.	Drain Valve
14.	Drain Valve Washer
	(17/32″ x 13/64″ x 1/8″ thick)
15.	Inner Door
16.	Hot Surface Ignition Assembly
17.	Burner Assembly (Natural)
17.	Burner Assembly (L.P.)
18.	Orifice (Natural)
18.	Orifice (L.P.)

KEY	PART
NO.	DESCRIPTION
19.	Manifold (Natural)
19.	Manifold (L.P.)
20.	Gas Thermostat (Natural)
20.	Gas Thermostat (L.P.)
21.	Wiring Harness
22.	Manifold Cover
23.	Control Cover
24.	On/Off Switch
25.	Pressure Switch
26.	Power Cord
27.	Flue Baffle
28.	Restrictor Ring
29.	Drain Pan
30.	Water Heater Stand

Now that you have purchased this Water Heater, should a need ever exist for repair parts or service, simply contact the com- pany it was purchased from or the manufacturer listed on the model rating plate on the water heater.

Be sure to provide all pertinent facts when you call or visit.

Selling prices will be furnished on request or parts will be shipped at prevailing price and you will be billed accordingly.

The model number of your Gas Water Heater will be found on the model rating plate located above the gas control valve.

WHEN ORDERING REPAIR PARTS, ALWAYS GIVE THE FOLLOWING INFORMATION:

MODEL NUMBER	(TYPE GAS) NATURAL OR PROPANE (L.P.)
SERIAL NUMBER	PART DESCRIPTION

THIS IS A REPAIR PARTS LIST, NOT A PACKING LIST.

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A.O. Smith Residential Power Vent Gas Water Heaters with Hot Surface Ignition Repair Parts cont’d, Description

Contents

NOT FOR USE IN MANUFACTURED MOBILE HOMES General Safety The Discharge PipeMust not be plugged or blocked General Safety cont’d ILY INJURY, OR PROPERTY DAMAGEa. DO NOT cover the temperature-pressure relief valve Table of Contents Abbreviations Found In This Instruction Manual Preparing for the New InstallationIntroduction MANUAL BEFORE ATTEMPTING TO INSTALL OR OPERATE THE WATER HEATERSome models are equipped with circulating loop fittings Typical InstallationFacts to Consider About the Location Locating the New Water HeaterLocating the New Water Heater cont’d Facts to Consider About the Location cont’dCombustion Air and Ventilation Figure 3b Locating the New Water Heater cont’dVenting Through Roof - Clearances Figure 3ab. ALL AIR FROM OUTDOORS see Figures Locating the New Water Heater cont’dWater Piping Installing the New Water HeaterThe discharge pipe Installing the New Water Heater cont’dTemperature-Pressure Relief Valve RELIEF VALVE OPENINGOPTIONAL Field Installed Wiring WiringFilling the Water Heater Installing the New Water Heater cont’dWIRING DIAGRAM Wiring cont’dInstalling the New Water Heater cont’d OPTIONAL Field Installed Wiring cont’dSee rating plate for BTU/HR rating VentingInstalling the New Water Heater cont’d VENTING THROUGH AN OUTSIDE WALL4″ PVC, ABS or CPVC Schedule 40 vent piping Venting cont’dInstalling the New Water Heater cont’d VENTING THROUGH AN OUTSIDE WALL cont’dNOTE See pages 21 and 22 for vertical venting through a roof Installing the New Water Heater cont’dThe vent piping may be installed as follows VENTING SYSTEM EXAMPLE INSTALLATIONS FOR ALL MODELS40 AND 50 GALLON 40,000 BTU/HR MODELS 3″ VENT Installing the New Water Heater cont’dVenting cont’d VENTING THROUGH AN OUTSIDE WALL cont’dNUMBER OF Installing the New Water Heater cont’dCementing PVC, ABS or CPVC Pipe and Fittings 3″ DIA. VENTCONNECTING VENT TO BLOWER Installing the New Water Heater cont’dCUTTING OPENING THROUGH AN OUTSIDE WALL AND COLLAR INSTALLATION INSTALLATION SHOWING USE OF PVC, ABS OR CPVC PIPE4″ PVC, ABS or CPVC Schedule 40 vent piping Installing the New Water Heater cont’dVENTING THROUGH A ROOF ALL MODELS 3″ PVC, ABS or CPVC Schedule 40 vent piping3″ DIA. VENT Gas PipingInstalling the New Water Heater cont’d VENTING THROUGH A ROOF cont’dSEDIMENT TRAP Installing the New Water Heater cont’dGAS PIPING WITH FLEXIBLE CONNECTOR GAS PIPING WITH ALL BLACK IRON PIPE TO GAS CONTROLMODEL RATING PLATE Installation ChecklistInstalling the New Water Heater cont’d BEFORE OPERATING THE HEATEROPERATION OperatingBEFORE THE WATER HEATER WILL OPERATE 75 GALLON 70,000 AND 75,000 BTU/HRAN ODORANT IS ADDED TO THE GAS USED BY Operating cont’dTHIS WATER HEATER. FOR YOUR SAFETY IF YOU SMELL GAS Make sure gas and electric power are connected properlyOPERATING INSTRUCTIONS FOR YOUR SAFETY READ BEFORE OPERATINGWARNING TURN OFF ALL ELECTRIC POWER BEFORE SERVICING Operating cont’dTemperature Regulation For Your Information Start Up ConditionsOperational Conditions “AIR” IN HOT WATER FAUCET’S For Your Information cont’dVENTING MANUAL RESET SWITCH SMELLY WATER cont’dBurner Inspection Periodic MaintenanceBurner Cleaning Venting System InspectionTemperature-Pressure Relief Valve Operation Periodic Maintenance cont’dHousekeeping Anode Rod InspectionPeriodic Maintenance cont’d Drain Valve Washer ReplacementService Drainingfaucet before turning “ON” gas to the water heater Leakage CheckpointsTHERMOSTAT AND GAS SUPPLY CHECK TroubleshootingSYSTEMS CHECK Troubleshooting cont’dThermostat problems Troubleshooting cont’dPROBLEM SOLUTIONRepair Parts Blower/Draft Hood Assembly for 40,000 Btu/Hr Models OnlyPVC, ABS or CPVC items for all models supplied locally DESCRIPTION Repair Parts cont’dTHIS IS A REPAIR PARTS LIST, NOT A PACKING LIST PART