A.O. Smith W/HOT Instruction Manual

1Instruction ManualPRINTED 1207 197086-002KEEP THIS MANUAL IN THE POCKET ON HEATER FOR FUTURE REFERENCEWHENEVER MAINTENANCE ADJUSTMENT OR SERVICE IS R

10FACTS TO CONSIDER ABOUT THE LOCATIONCarefully choose an indoor location for the new water heater, becausethe placement is a very important considera

11in an alcove or closet, the entire floor must be covered by the panel.Failure to heed this warning may result in a fire hazard.Minimum clearances be

12a free area of one square inch per 1000 Btu/hr (22 cm2/kW) of the totalinput of all appliances in the enclosure, but not less than 100 squareinches

13Water supply systems may, because of such events as high line pressure,frequent cut-offs, the effects of water hammer among others, haveinstalled de

14Figure 10 shows the typical attachment of the water piping to thewater heater. The water heater is equipped with 3/4 inch NPT waterconnections.NOTE:

15GAS PIPINGMake sure the gas supplied is the same type listed on the model ratingplate. The inlet gas pressure must not exceed 14 inch water column

16SEDIMENT TRAPSA sediment trap shall be installed as close to the inlet of the waterheater as practical at the time of water heater installation. The

17VENT PIPE TERMINATIONThe first step is to determine where the vent pipe will terminate. SeeFigures 15, 20 and 21. The vent may terminate through a s

18PLANNING THE VENT SYSTEMPlan the route of the vent system from the discharge of the blower tothe planned location of the vent terminal.1. Layout tot

19The condensate trap may be primed by filling the CONDENSATE U-ASSEMBLY with tap water using the supplied hose while the waterheater is not operating

2SAFE INSTALLATION, USE AND SERVICEYour safety and the safety of others is extremely important in the installation, use and servicing of this water he

20 CAUTIONLABEL ALL WIRES PRIOR TO DISCONNECTION WHEN SERVICING CONTROLS. WIRING ERRORS CAN CAUSE IMPROPER ANDDANGEROUS OPERATION. VERIFY PROPER OP

21INSTALLATION OF VENT SYSTEM, SIDEWALLWith the route of the venting system and selection of materials completed,as discussed in the section of this m

22VENT ATTENUATION ASSEMBLYINSTALLATION INSTRUCTIONSThe Vent Attenuation Assembly (VAA) is designed to provide areduction in fan noise created in the

238. Take the end of the tube at the bottom of the floor and route it toa suitable drain. This will provide an area where the condensatecan drain with

24VENT PIPE PREPARATION1. INITIAL PREPARATIONA. Make sure the solvent cement you are planning to use isdesigned for the specific application you are a

25B. DeburringUse a knife, plastic pipe deburring tool, or file to remove burrs from theend of small diameter pipe. Be sure to remove all burrs from

26FOR YOUR SAFETY READ BEFORE OPERATINGWARNING: If you do not follow these instructions exactly, a fire orexplosion may result causing property damag

27It is recommended that lower water temperatures be used to avoid therisk of scalding. It is further recommended, in all cases, that the watertempera

28FOR YOUR INFORMATIONSTART UP CONDITIONSSMOKE/ODORIt is not uncommon to experience a small amount of smoke andodor during the initial start-up. This

29VENTING SYSTEM INSPECTIONAt least once a year a visual inspection should be made of the ventingsystem. You should look for:1. Obstructions which co

3GENERAL SAFETY

30INSTALLED IN SUITABLE AREA: To insure sufficient ventilation andcombustion air supply, proper clearances from the water heater mustbe maintained. S

31LEAKAGE CHECKPOINTSNever use this water heater unless it is completely filled with water.To prevent damage to the tank, the tank must be filled with

32TROUBLESHOOTING GUIDELINESTROUBLESHOOTING GUIDELINESTROUBLE SHOOTINGPlease check guidelines below. For your safety, water heater service should be

33TROUBLESHOOTING GUIDELINESTROUBLE SHOOTINGPlease check guidelines below. For your safety, water heater service should be performed only by a qualif

34These guidelines should be utilized by a qualified service agent.TROUBLESHOOTING GUIDELINESTROUBLESHOOTING GUIDELINES

35Limited WarrantyA. O. Smith Corporation, the warrantor, extends the following LIMITED WARRANTY to the owner of this water heater.1. THE TANKIf the g

36

4GENERAL SAFETY

5Thank You for purchasing this water heater. Properly installed andmaintained, it should give you years of trouble free service.Abbreviations Found I

6TYPICAL INSTALLATION* CAUTION HARNESS HAS 120 VAC. IN OPERATION.** See "PLANNING THE VENT SYSTEM", "CONDENSATE" and "BLOWER

7TYPICAL INSTALLATIONCONDENSATE HOSE AND DRAIN PANFIGURE 1 (continued).* Note: Condensate Trap Loops must be oriented in a vertical plane as shown. Th

8ROUGH-IN-DIMENSIONSRough-In-DimensionsTop/Side Inlet and Outlet: 3/4" NPTGas Inlet: 1/2" NPTCapacity and Gas and Electrical Characteristics

9TYPICAL INSTALLATIONFIGURE 2.MIXING VALVE USAGEThis appliance has been design certified as complying with AmericanNational Standard/CSA Standard for