A.O. Smith 197835-001 manual

1 Instruction Manual PRINTED IN THE U .S .A 1 208 1 97 835-001 KEEP THIS MANUAL IN THE POCKET ON HEA TER FOR FUTURE REFERENCE WHENEVER MAINTENANCE ADJUSTMENT OR SERVICE IS REQUIRED. POWER VENT/POWER DIRECT VENT GAS MODELS WITH HOT SURF ACE IGNITION ALL TECHNICAL AND W ARRANTY QUESTIONS: SH OUL D BE DIR EC TE D TO TH E LOC AL DEA LE R FRO M WH OM TH[...]

2 SAFE INST ALLA TION, USE AND SERVICE Y our safety and the safety of others is extremely important in the installation, use and servicing of this water heater . Ma ny s afe ty- re lat ed me ss age s and ins tru cti on s hav e be en pr ovi de d in th is ma nua l an d on yo ur ow n wa ter he at er to w arn yo u an d ot he rs of a p ot en ti al in ju[...]

3 GENERAL SAFETY[...]

4 GENERAL SAFETY[...]

5 Thank Y ou forpurchasingthis waterheater .Properlyinstalled and maintained,itshouldgiveyouyearsoftroublefreeservice. Abbreviations Found In This Instruction Manual: • CSA -CanadianStandards Association • ANSI- AmericanNationalStandardsInstitute • NF[...]

6 * CAUTION HARNESS HAS 120 VAC. IN OPERATION. ** See “Planning the Vent System,” “Installation of Vent System” and “Condensate” for more information. FIGURE 1. V ACUUM RELIEF V AL VE *INST ALL PER LOCAL CODES M Display Enclosure ** N Exhaust Elbow Assembly ** O Condensate T ubing P Off/On Switch Q Display Label R Hot W ater Outlet *S E[...]

7 Rough-In-Dimensions Model Units A B C D E F 100 Inches 68.50 49.25 22.00 15.75 3.00 8.00 cm 174 125.09 55.88 40.00 7.62 20.32 T op/Side Inlet and Outlet: 3/4” NPT Gas Inlet: 1/2” NPT Capacity , Gas and Electrical Characteristics Model ApproximateCapacity Manifold Pressure Electrical Characteristics U.S. Gals. Liters GasT ype “WC kP A [...]

8 For all sidewall terminated, horizontally vented powervent, direct vent, andpower directvent gas fueled waterheaters  installed in everydwelling, building or structure usedin whole or inpart forresidential purposes, including thoseowned [...]

9 FIGURE 2. W A TER PIPING - MIXING V AL VE USAGE This appliance has been design certified as complying with American National Standard/CSA Standard for water heaters and is considered suitable for: W ater (Potable) Heating and Space Heating:  All models are consideredsuitablefor?[...]

10 F ACTS TO CONSIDER ABOUT THE LOCA TION Car eful ly cho ose an in door lo cati on for th e new wa ter he ater , beca use the placementis a very importantconsideration for the safetyof the occupants in the building and for the most economical use of the appliance. This wate[...]

11 in an alcove or closet, the entire oormust be covered bythe panel. Failuretoheedthiswarningmayresultinarehazard. Minimum clearances between the water heater and combustible con stru ctio n are 0 i nc h at the sides an d r[...]

12 a f r ee  areaofone squareinchper 1000Btu/hr(22cm 2 /kW) ofthe total inputof all appliances inthe enclosure, but notless than 100 squareinches(645cm 2 ). Ifthe conned space iswithin a building oftight construction, air[...]

13 CLOSED W A TER SYSTEMS W ater supply systems may , because of code requirements or such conditions as high line pressure, among others, have installed devices  such as pressure reducing valves, check valves, and back ow preventers. Devicessuchas[...]

14 Figures2 and 10show the typicalattachment of thewater piping to the water heater . The water heater is equipped with 3/4 inch NPT water connections. NOTE: If using copper tubing, solder tubing to an adapter before attaching the adapter to the water heater connections. Do [...]

15 The te mper ature - pr essu re reli ef valve must b e manu ally  o p e r a t e d a t l e a s t o n c e a y e a r , s e e F i g u r e 2 8 . C a u t i o n s h o u l d b e  takento ensur e th at ( 1 )no oneis in f rontof oraroundthe ou tlet of?[...]

16 SEDIMENT TRAPS A  sediment trap should be installed as close to the gas inlet of the water  heater as practical at the time of water heater installation. The sediment  tra pshould  beei theratee tting  wit hacapped nipple  inth[...]

17 FIGURE 15B. U.S. POWER VENT CANADIAN POWER VENT W ARNING VENT HOOD(S) MA Y BE EXTREMEL Y HOT DURING OPERA TION. W ARNING VENT HOOD(S) MA Y BE EXTREMEL Y HOT DURING OPERA TION. FIGURE 15A. CAUTION TO PREVENT EXHAUSTING PRODUCTS FROM CIRCULA TING TO THE AIR INT AKE IN WINDY/COLD AREAS, THE MAXIMUM PRACTICAL DIST ANCE BETWEEN THESE TWO TERMINALS IS[...]

18 FIGURE 15D. U.S. DIRECT VENT CANADIAN DIRECT VENT W ARNING VENT HOOD(S) MA Y BE EXTREMEL Y HOT DURING OPERA TION. W ARNING VENT HOOD(S) MA Y BE EXTREMEL Y HOT DURING OPERA TION. FIGURE 15C. CAUTION TO PREVENT EXHAUSTING PRODUCTS FROM CIRCULA TING TO THE AIR INT AKE IN WINDY/COLD AREAS, THE MAXIMUM PRACTICAL DIST ANCE BETWEEN THESE TWO TERMINALS [...]

19 PLANNING THE VENT SYSTEM Plan the route of the vent system from the exhaust elbow to the plannedlocationoftheventterminal. 1. Layout total vent systemtousea minimumofventpipeandelbows. 2. Thiswater heateriscapableof ventingu[...]

20 INST ALLA TION OF VENT SYSTEM Beforebeginning installation of pipingsystem thoroughly read thesectionofthismanualVENTPIPEPREP ARA TION. If you are installing your system so that it vents through roof, please refer to section  titled INSTALLATION[...]

21 INST ALLA TION SEQUENCE For installations in the City of LosAngeles, California Category IV PVCPipesuch asthatmanufacturedbyBrownline PipeCompany , mustbeusedasventpipematerial. CAUTION VENT TERMINALS SUPPLIED WITH HEA TER MUST BE USED. NOTE: BEFORE BEGINNING INSTAL[...]

22 INST ALLA TION OF VENT SYSTEM, SIDEW ALL With the route of the venting system and selection of materials completed,  as d isc uss ed in t he se cti on of t his m anu al ti tle d PLA NNI NG TH E VEN T SYSTEM, the through the wall vent terminal in place[...]

23 Thi s c onc entr icvent ter minat ionkitmay beusedwith 3or 4inchdiamete r pi pe sy st em s. Whe nco nn ect in gt oa4  in .  d ia me te rpi pe  s ys te m  a3  x  4 in ch  el d su pp li ed  r edu ce r is  to  be  in sta ll ed  at  t[...]

24 5. Secure assemblyto roofstructure as shownin Figure Eusing  fieldsuppliedmetalstrappingorequivalentsupportmaterial. NOTE: Ensure termination height is above the roof surface or anticipated snow level (1 ft. in U.S.A. or 1-1/2 ft. in Canada) as shown in Figure C. 6 .  Install rain[...]

25 8. Operate heater through 1 heat cycle to ensure combustion-ai r and ventpipesareproperlyconnectedtoconcentricventtermination connections. FIGURE G. MUL TI-CONCENTRIC VENT TERMINA TIONS When two or more appliances are directed vented with concentric vent[...]

26 VENT PIPE PREP ARA TION 1. INITIAL PREP ARA TION.  A .)  Make sure the solvent cement you are planning to use  isdesignedforthespecicapplicationyouareattempting. B.) Kn ow  t he  p hy si ca l an d  ch em i ca l ch ar ac te ri st i cs  a nd  l im it at io ns ?[...]

27 B. Deburring  Us e ak ni fe, p las ti cp ip ed eb ur ri ng to ol, o rf il et or em ov eb ur rs fr om the end of small diameter pipe. Be sure to remove all burrs from ar ou nd  th e ins id e as we ll  as  th e ou tsi de  of  th e pi pe .[...]

28 CONTROLS AND SWITCHES This model is provided  with three pressur e switch es. These switche s are essential to the safe and proper operation of the unit. All switches are wired in series. The controller is set up to shut the unit down w[...]

29 CAUTION LABEL ALL WIRES PRIOR TO DISCONNECTION WHEN SERVICING CONTROLS. WIRING ERRORS CAN CAUSE IMPROPER AND DANGEROUS OPERA TION. VERIFY PROPER OPERA TION AFTER SERVICING. POWER VENT WIRING SCHEMA TIC - FIGURE 24. THI S WATER H EATER IS P OL ARIT Y S ENSIT V E. B E F O R E A P P LY I N G ELECTRICITY TO THIS H E ATER B E C E RTA IN THA T SUPPL Y[...]

30 UP Operating Set Point Status: Heating Menu H elp 120 F DN OFF GAS O N W ARNING: If you do not follow these instructions exactly , a fire or explosion may result causing property damage, personal injury or loss of life. A. This appliance does not have a pilot.  It is equippe d with an ignition device?[...]

31 The water temperature is controlled using the T emperature  Control on the Display at the front of the unit (See Figure 1). Thiscontrol utilizes a temperatureprobe to determine thetank temperature. The primary temperature probe is locat[...]

32 USING THE ELECTRONIC CONTROLLER 1. Overview Interactionwith thewaterheater controllerisdone throughan up,adown, andthree operationbuttons.Thesebuttons areillustratedto the right.Operation of thethree lowerbuttons isdened immediatelyabove them[...]

33 3. Adjusting the Operating Set Point The Operating Set Point ofthiswaterheaterdeterminestheregulated temperatureforthewaterinthetank.Thisparameterisadjustedinthe T emperaturemenu.Itemsinthismenuallowyoutomonitordifferent temperaturereadingsin[...]

34 3. Changing the Display Units The display interface to the heater has the option of selecting between degrees Fahrenheit and degrees Celsius for temperature displays. This canbefoundinthe“DisplaySettings”menu.Alsointhismenu,youmay adjust?[...]

35 ACTION: T ogettothecurrentfaultinformationscreen,press Menu. DISPLA Y : ACTION: Press the DOWN buttontohighlight"currentFault"andpress Select. DISPLA Y : ACTION: Press the DOWN buttonformoreinformation. DISPLA Y : 6. Viewing the Fault History The controller for this water h[...]

36 FOR YOUR INFORMA TION ST ART UP CONDITIONS SMOKE/ODOR Itis notuncommonto experienceasmall amountofsmoke and odor during the initial start-up. This is due to burning off of oil frommetalparts,andwilldisappearinashortwhile. THERMAL EXP ANSION W at[...]

37 VENTING SYSTEM INSPECTION At least once a year a visual inspection should be made of the venting system.Y oushouldlookfor: 1.Obst ruc tion s whi ch co uld c aus e imp rope r ven ting . Th e com bus tion andventilationairowmustnotbeobstruct[...]

38 INST ALLED IN SUIT ABLE  AREA: T o insure sufci ent venti lation and combu stion air supply , proper clearan ces from the wat er heat er mus t be maintained.  See “Facts to Consider About Location” section.  Combustible materials such as [...]

39 LEAKAGE CHECKPOINTS Neveruse thiswater heaterunlessit iscompletelylled withwater .  T o prevent damage to the tank, the tank must be lled with water .  W atermust owfromthehotwaterfaucet beforeturning“ON”gas to the wa[...]

40 PROBLEMS NOT ENOUGH HOT W A TER 1.)Blowerwillnotrun. a.“ON/OFF”controlswitchturnedoff. T urnswitchtothe“ON”position. b.Blowerunplugged. Plugblowerbackinto1 15V ACoutlet. c.Nopoweratoutlet. Repairservicetoout[...]

41 NOTES[...]

42 NOTES[...]

43 THIS WARRANTY IS APPLICABLE TO THE ORIGINAL OWNER ONL Y If the glass lined tank in this water heater shall prove upon examination by (the warrantor) to have leaked during the warranty period in normal residential use,due to natural corrosionfrom potable?[...]

44 500T ennesseeW altzParkway , AshlandCity ,TN37015 Phone:800-527-1953Fax:800-433-2515 www .hotwater .com[...]