A.O. Smith 185363-001 - Manual

5 TYPICAL INSTALLATION GET TO KNOW YOUR WATER HEATER - GAS MODELS A Vent Pipe–Exhaust B Vent Terminal C Vent Adapter-Rubber Boot D Blower Assembly E Cold Water InletF Inlet Water Shut-off Valve G Union H Inlet Dip Tube J Anode** FIGURE 1. K Hot Water OutletL Outlet Receptacle (115 VAC) M Temperature...

6 TYPICAL INSTALLATION FIGURE 2. MIXING VALVE USAGE This appliance has been design certified as complying with AmericanNational Standard/CSA Standard for water heaters and is consideredsuitable for: Water (Potable) Heating and Space Heating: All models are considered suitable for water (potable) hea...

7 FACTS TO CONSIDER ABOUT THE LOCATION Carefully choose an indoor location for the new water heater, becausethe placement is a very important consideration for the safety of theoccupants in the building and for the most economical use of the appliance. This water heater is not for use in manufacture...

8 and 12" (30.5 cm) from the top. (Standard clearance.) If clearancesstated on the heater differ from standard clearances, install water heateraccording to clearances stated on the heater. Adequate clearance for servicing this appliance should be consideredbefore installation, such as changing t...

10 The water within the water heater tank expands as it is heated andincreases the pressure of the water system. If the relieving point of thewater heater’s temperature-pressure relief valve is reached, the valvewill relieve the excess pressure. The temperature-pressure relief valve is not intended ...

11 Figure 10 shows the typical attachment of the water piping to the waterheater. The water heater is equipped with 3/4 inch NPT waterconnections. NOTE: If using copper tubing, solder tubing to an adapter before attaching the adapter to the cold water inlet connection. Do notsolder the cold water su...

12 GAS PIPING Make sure the gas supplied is the same type listed on the model ratingplate. The inlet gas pressure must not exceed 14 inch water column (3.5kPa) for natural and propane gas (L.P.). The minimum inlet gas pressureshown on the rating plate is that which will permit firing at rated input....

16 For 4" Venting, the maximum equivalent feet of pipe allowedis 160 feet (48.8 m). This does not include the Vent Termination (supplied locally) for the water heater. For the 4" venting, one 90° elbow isapproximately equal to 8 feet (2.4 m). One 45° elbow is approximatelyequal to 4 feet (1....

18 VENT PIPE PREPARATION 1. INITIAL PREPARATION A. Make sure the solvent cement you are planning to use isdesigned for the specific application you are attempting. B. Know the physical and chemical characteristics and limitationsof the PVC and CPVC piping materials that you are about to use. C. Know...

20 FOR YOUR SAFETY READ BEFORE OPERATING WARNING: If you do not follow these instructions exactly, a fire or explosion may result causing property damage, personal injury or loss oflife. A. This appliance does not have a pilot. It is equipped with an ignition device which automatically lights the bu...

21 Due to the nature of the typical gas water heater, the water temperaturein certain situations may vary up to 30°F (16.7°C) higher or lower at thepoint of use such as, bathtubs, showers, sink, etc. Any water heater’s intended purpose is to heat water. Hot water isneeded for cleansing, cleaning, an...

22 FOR YOUR INFORMATION START UP CONDITIONS CONDENSATE Whenever the water heater is filled with cold water, some condensatewill form while the burner is on. A water heater may appear to be leakingwhen in fact the water is condensate. This usually happens when: a. A new water heater is filled with co...

23 VENTING SYSTEM INSPECTION At least once a year a visual inspection should be made of the ventingsystem. You should look for: 1. Obstructions which could cause improper venting. The combustion and ventilation air flow must not be obstructed. 2. Damage or deterioration which could cause improper ve...

25 LEAKAGE CHECKPOINTS Read this manual first. Then before checking the water heater makesure the gas supply has been turned “OFF”, and never turn the gas“ON” before the tank is completely full of water. Never use this water heater unless it is completely filled with water. Toprevent damage to the t...

26 Key No. Part Description 1 Burner Assembly 2 Burner Head 3 Burner Orifice 4 Burner Tube 5 HSI Ignition Assembly 6 Inner Door 7 Inner Door Gasket 8 Flue Baffle 9 Flue Restrictor 1 0 Blower Assembly 11 Air Intake Screen - Base Pan 1 2 Inlet Tube 1 3 Gas Control Valve 1 4 Drain Valve 1 5 Drain Valve...

27 TROUBLESHOOTING GUIDELINES TROUBLESHOOTING GUIDELINES TROUBLE SHOOTING Please check guidelines below. For your safety, water heater service should be performed only by a qualified service technician. Read the GENERAL SAFETY INFORMATION section first. PROBLEM SOLUTION An open earth ground circuit ...

28 These guidelines should be utilized by a qualified service agent. When calling for service notify the service agent that this is a “Flammable Vapor Ignition Resistant” Product. TROUBLESHOOTING GUIDELINES TROUBLESHOOTING GUIDELINES

31 THIS WARRANTY IS APPLICABLE TO THE ORIGINAL OWNER ONLY. If theglass lined tank in this water heater shall prove upon examination by (thewarrantor) to have leaked during the warranty period in normal residentialuse, due to natural corrosion from potable water therein, the warrantorwill furnish the...