A.O. Smith 197835-001 Instruction Manual Download Page 44 | Manualshive

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500 Tennessee Waltz Parkway, Ashland City, TN 37015

Phone: 800-527-1953 Fax: 800-433-2515

www.hotwater.com

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Summary of Contents for 197835-001

Page 1: ... VENT GAS MODELS WITH HOT SURFACE IGNITION ALL TECHNICAL AND WARRANTY QUESTIONS SHOULD BE DIRECTED TO THE LOCAL DEALER FROM WHOM THE WATER HEATER WAS PURCHASED IF YOU ARE UNSUCCESSFUL CALL THE TECHNICAL SUPPORT PHONE NUMBER SHOWN ON THE WATER HEATER LABELING RESIDENTIAL GAS WATER HEATERS For Your Safety AN ODORANT IS ADDED TO THE GAS USED BY THIS WATER HEATER Ashland City TN 37015 www hotwater com...

Page 2: ...other reproductive harm This appliance can cause low level exposure to some of the substances listed IMPORTANT DEFINITIONS Qualified Installer or Service Agency Installation and service of this water heater requires ability equivalent to that of a Qualified Agency as defined by ANSI below in the field involved Installation skills such as plumbing air supply venting gas supply electrical supply are...

Page 3: ...3 GENERAL SAFETY ...

Page 4: ...4 GENERAL SAFETY ...

Page 5: ...Carefully plan the place where you are going to put the water heater Correct combustion vent action and vent pipe installation are very important in preventing death from possible carbon monoxide poisoning and fires see Figures 1 and 2 Examine the location to ensure the water heater complies with the Facts to Consider About Location section in this manual 6 For California installation this water h...

Page 6: ...rface Igniter I Junction Box J Gas Control Valve Thermostat K Display Board L Top Plastic Enclosure Y Inlet Dip Tube Z T P Relief Valve AA Rating Plate BB Labels CC Drain Valve DD Vent Terminal EE Metal Drain Pan FF Anode GG Insulation HH Upper Temperature Probe II Access Door REPLACEMENT PARTS AND DELIMING PRODUCTS Replacement parts and recommended delimer may be ordered through authorized servic...

Page 7: ...Supply Pressure for Natural Gas 3 50 87kPa Minimum Supply Pressure for Propane Gas 8 00 1 99kPa Minimum pressure must be maintained under both load and no load dynamic and static conditions Recovery Capacities U S Gallons Hr and Liters Hr at Temperature Rise Indicated Model Input Recovery Capacities Rating Btu hr Rating kW Temp Rise F 30 40 50 60 70 80 90 100 110 120 130 140 C 17 22 28 33 39 44 50...

Page 8: ...ntally vented gas fueled heating appliance or equipment The sign shall read in print size no less than one half 1 2 inch in size GAS VENT DIRECTLY BELOW KEEP CLEAR OF ALL OBSTRUCTIONS INSPECTION The state or local gas inspector of the side wall horizontally vented gas fueled equipment shall not approve the installation unless upon inspection the inspector observes carbon monoxide detectors and sig...

Page 9: ...cal code or state law requiring a certain temperature water at the hot water tap then you must take special precautions In addition to using the lowest possible temperature setting that satisfies your hot water needs a means such as a Mixing Valve should be used at the hot water taps used by these people or at the water heater see Figure 2 Mixing valves are available at plumbing supply or hardware...

Page 10: ... water heater is installed Water heaters are sometimes installed in locations where leakage may result in property damage even with the use of a drain pan piped to a drain However unanticipated damage can be reduced or prevented by a leak detector or water shut off device used in conjunction with a piped drain pan These devices are available from some plumbing supply wholesalers and retailers and ...

Page 11: ...on blanket frequently to make certain it does not sag thereby obstructing combustion air flow COMBUSTION AIR AND VENTILATION Agas water heater cannot operate properly without the correct amount of air for combustion Do not install in a confined area such as a closet unless you provide air as shown in the Facts to Consider About Location section Never obstruct the flow of ventilation air If you hav...

Page 12: ...irectly communicating with the outdoors each opening should have a minimum free area of 1 square inch per 4 000 Btu per hour 5 5 cm2 kW of total input rating of all equipment in the enclosure see Figure 7 FIGURE 7 2 When communicating with the outdoors through vertical ducts each opening should have a minimum free area of 1 square inch per 4 000 Btu per hour 5 5 cm2 kW of total input rating of all...

Page 13: ...contact with the heater should not contain any of these chemicals If necessary uncontaminated air should be obtained from remote or outside sources The limited warranty is voided when failure of water heater is due to a corrosive atmosphere See limited warranty for complete terms and conditions Water Piping HOTTER WATER CAN SCALD Water heaters are intended to produce hot water Water heated to a te...

Page 14: ...0 psi 1 035 kPa and a discharge capacity not less than the water heater Btu hr input rate as shown on the water heater s model rating plate For safe operation of the water heater the relief valve must not be removed from its designated opening nor plugged The temperature pressure relief valve must be installed directly into the fitting of the water heater designed for the relief valve Position the...

Page 15: ...s supply line serving the water heater and A drip leg sediment trap ahead of the gas control valve to help prevent dirt and foreign materials from entering the gas control valve A flexible gas connector or a ground joint union between the shut off valve and control valve to permit servicing of the unit Be sure to check all the gas piping for leaks before lighting the water heater Use a soapy water...

Page 16: ...ower front of the water heater 2 Open the cold water supply valve to the water heater NOTE The cold water supply valve must be left open when the water heater is in use 3 To insure complete filling of the tank allow air to exit by opening the nearest hot water faucet Allow water to run until a constant flow is obtained This will let air out of the water heater and the piping 4 Check all water pipi...

Page 17: ...Y BE EXTREMELY HOT DURING OPERATION WARNING VENT HOOD S MAY BE EXTREMELY HOT DURING OPERATION FIGURE 15A CAUTION TO PREVENT EXHAUSTING PRODUCTS FROM CIRCULATING TO THE AIR INTAKE IN WINDY COLD AREAS THE MAXIMUM PRACTICAL DISTANCE BETWEEN THESE TWO TERMINALS IS RECOMMENDED ...

Page 18: ...AY BE EXTREMELY HOT DURING OPERATION WARNING VENT HOOD S MAY BE EXTREMELY HOT DURING OPERATION FIGURE 15C CAUTION TO PREVENT EXHAUSTING PRODUCTS FROM CIRCULATING TO THE AIR INTAKE IN WINDY COLD AREAS THE MAXIMUM PRACTICAL DISTANCE BETWEEN THESE TWO TERMINALS IS RECOMMENDED ...

Page 19: ...ystem components be certified to ULC S636 This water heater has been design certified to be vented with PVC pipe certified and marked as complying with ULC S636 This water heater is supplied with a 2 inch 22 5 degree termination elbow that is a special fitting that must be used with the appliance Any outlet piping fittings and glue used to vent this appliance that is not supplied by the manufactur...

Page 20: ...ll Place some of the caulking on the back of the plate to hold it against the wall after installation If the vent pipe is installed up to the wall with a coupling on the end against the wall opening the pipe with the vent terminal can be prepared for gluing before inserting through the wall Slide the pipe through the wall and insert into the coupling on the other side of the wall making sure that ...

Page 21: ...this step on the inside wall if necessary 2 Cut a length of 3 PVC pipe about 3 5 8 9 cm longer than the wall thickness at the opening 3 Glue the intake vent terminal to the section of the pipe 4 Slide the wall plate over pipe to stop against intake vent terminal 5 Place a bead of caulking not supplied around the gap between the pipe and the wall Place some of the caulking on the back of the plate ...

Page 22: ...of The total vent system should not exceed the equivalent feet of pipe as listed in Table 1 Provide support for all pipe protruding through the roof All piping should be properly secured The vent system piping should be supported every 5 feet 1 5 m of vertical run and every 3 feet 91 cm of horizontal run All piping and fittings must be joined by the proper procedures as described under VENT PIPE P...

Page 23: ...chances to intake contaminants and less visible vent vapors 2 Cut 1 hole 5 in diameter 3 Partially assemble concentric vent termination kit a Cement Y concentric fitting to larger diameter kit pipe see Figure A b Cement rain cap to smaller diameter kit pipe see Figure A Figure d NOTE Instead of cementing the smaller pipe to the rain cap a field supplied stainless steel screw may be used to secure ...

Page 24: ... kit a Cement the Y concentric fitting to larger diameter kit pipe see Figure A b Cement the rain cap to the smaller diameter kit pipe see Figure A NOTE Instead of cementing the smaller pipe to the rain cap a field supplied stainless steel screw may be used to secure the 2 components together when field disassembly is desired for cleaning see Figure D WARNING When using alternate screw assembly me...

Page 25: ...ted vented with concentric vent terminations near each other each appliance must be individually vented NEVER common vent this appliance When two or more appliances are direct vented using concentric vent terminations the appliances may be vented as shown in Figure H and Figure I Figure H Concentric Vent Terminations for Horizontal Direct Venting Figure I Concentric Vent Terminations for Vertical ...

Page 26: ...MER It is recommended that Tetrahydrofuran THF be used to prepare the surfaces of pipe and fittings for solvent welding Do not use water rags gasoline or any other substitutes for cleaning PVC or CPVC surfaces A chemical cleaner such as MEK may be used CEMENT The cement should be a bodied cement of approximately 500 to 1600 centipoise viscosity containing 10 20 by weight virgin PVC material solvat...

Page 27: ... distance and make a second mark as the primer and cement will most likely destroy your first one Apply primer to the surface of the pipe and fitting socket with a natural bristle brush This process softens and prepares the PVC or CPVC for the solvent cementing step Move quickly and without hesitation to the cementing procedure while the surfaces are still wet with primer E Application of solvent ...

Page 28: ...erminal Also verify that the vent length does not exceed the maximum allowed as shown in the Vent Section of this manual BLOCKED INTAKE SWITCH SEE FIGURE 12 The Blocked Intake Switch is set up to shut the unit off when a build up of negative pressure in the intake air pipe occurs This switch is a negative pressure switch that requires an increase in negative pressure to change the electrical conta...

Page 29: ...RRORS CAN CAUSE IMPROPER AND DANGEROUS OPERATION VERIFY PROPER OPERATION AFTER SERVICING POWER VENT WIRING SCHEMATIC FIGURE 24 THIS WATER HEATER IS POLARITY SENSITVE BEFORE APPLYING ELECTRICITY TO THIS HEATER BE CERTAIN THAT SUPPLY NEUTRAL WIRE TO GROUND CHECK INDICATES ZERO VOLTAGE ...

Page 30: ...ooded water heater Do not attempt to repair the unit It must be replaced OPERATING INSTRUCTIONS 1 Set the thermostat to the lowest setting 2 Set the ON OFF switch on the control panel to the OFF position 3 Turn off all electrical power to the appliance if service is to be performed BEFORE OPERATING ENTIRE SYSTEM MUST BE FILLED WITH WATER AND AIR PURGED FROM ALL LINES 1 STOP Read the safety informa...

Page 31: ...h limit switch operation occurs TEMPERATURE REGULATION Time to Produce 2nd 3rd Degree Temperature Setting Burns on Adult Skin It is recommended that lower water temperatures be used to avoid the risk of scalding It is further recommended in all cases that the water temperatures be set for the lowest temperature which satisfies your hot water needs This will also provide the most energy efficient o...

Page 32: ...ter is operating the user interface will display the desktop screen if there are no active faults or warnings An example of this screen is shown to the right The temperature on this screen is the Operating Set Point The Operating Set Point is the temperature at which the water heater will maintain the water inside the tank The second line on the screen is a text description of the Operational Stat...

Page 33: ...ferent temperature readings in the tank along with adjusting the Operating Set Point ACTION From the desktop screen press Menu DISPLAY 2 Operating States In the main desktop screen there are some specific Operating States that are indicated on the status line These are summarized below ACTION From the Main Menu press Select to enter the Temperatures screen DISPLAY ACTION Press Change then use the ...

Page 34: ...and determine the appropriate action Part of this is displaying the information on the LCD in plain text that accurately describes the condition and diagnostics information that can be used to correct the issue Faults This is a safety related condition that has been detected by the heater NOTE When these conditions occur the water heater will not continue any further heating cycles and the water w...

Page 35: ...ed at any time ACTION Press the DOWN button for more information DISPLAY ACTION Press the DOWN key to scroll through the fault history If you select a specific fault you may press the VIEW button to view details regarding this fault DISPLAY 7 Viewing Information About the Heater The electronic control for this water heater monitors many different aspects of the water to ensure safe and optimal ope...

Page 36: ...in this section OPERATIONAL CONDITIONS SMELLY WATER In each water heater there is installed at least one anode rod see parts section for corrosion protection of the tank Certain water conditions will cause a reaction between this rod and the water The most common complaint associated with the anode rod is one of a rotten egg smell in the hot water The smell is a result of four factors which must a...

Page 37: ...age to a water heater may not be readily visible or immediately detectable However over a period of time a flooded PERIODIC MAINTENANCE water heater will create dangerous conditions which can cause DEATH SERIOUS BODILY INJURY OR PROPERTY DAMAGE Contact a qualified installer or service agency to replace a flooded water heater Do not attempt to repair the unit It must be replaced At least once a yea...

Page 38: ...ge line and 2 that the water discharge will not cause any property damage as the water may be extremely hot see Figure 28 If after manually operating the valve it fails to completely reset and continues to release water immediately close the cold water inlet to the water heater follow the draining instructions and replace the temperature pressure relief valve with a new one If the temperature pres...

Page 39: ...loose connections or the relief valve DO NOT replace the water heater until a full inspection of all possible water sources is made and necessary corrective steps taken Leakage from other appliances water lines or ground seepage should also be checked To check where threaded portion enters tank insert cotton swab between jacket opening and fitting If cotton is wet follow Draining instructions in t...

Page 40: ...age CONDENSATION Water on the floor under heater See CONDENSATION section WATER LEAKS Improperly sealed hot or cold supply connections relief valve drain valve or thermostat threads Check for leaks See Figure 1 Leakage from other appliances or water lines Inspect other appliances near water heater Condensation of flue products Refer to CONDENSATION section LEAKING T P Thermal expansion in closed w...

Page 41: ...41 NOTES ...

Page 42: ...42 NOTES ...

Page 43: ...on of it in a modified form or any attempt to repair tank leaks or parts will void this warranty SERVICE AND LABOR RESPONSIBILITY UNDER THIS LIMITED WARRANTY THE WARRANTOR WILL PROVIDE ONLY A REPLACEMENT WATER HEATER OR PART THEREOF THE OWNER IS RESPONSIBLE FOR ALL OTHER COSTS Such costs may include but are not limited to a Labor charges for service removal or reinstallation of the water heater or...

Page 44: ...44 500 Tennessee Waltz Parkway Ashland City TN 37015 Phone 800 527 1953 Fax 800 433 2515 www hotwater com ...

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