A.O. Smith HIGH EFFICIENCY ATMOSPHERIC VENTGAS WATER HEATER Use & Care Manual Download Page 36 | Manualshive

Page: 36 / 40

background image

36

NOTES

«
...
34
35
36
37
38
...
»

Summary of Contents for HIGH EFFICIENCY ATMOSPHERIC VENTGAS WATER HEATER

Page 1: ...upplier s instructions If you cannot reach your gas supplier call the fire department Installation and service must be performed by a qualified installer service agency or the gas supplier WARNING If the information in these instructions is not followed exactly a fire or explosion may result causing property damage personal injury or death RESIDENTIAL GAS WATER HEATERS Installation Instructions an...

Page 2: ...elief Valve 16 17 T P Relief Valve and Pipe Installation 17 Combination Space Heating Potable Water System 17 18 Solar Installation 18 Electrical Connections and Wiring Diagram 18 Important Information About this Water Heater 19 Operating Your Water Heater 20 25 Gas Valve Thermostat Lighting Instructions 20 Checking the Draft 21 Burner Flames 22 Emergency Shutdown 22 Water Temperature Regulation 2...

Page 3: ...ity equivalent to a licensed tradesman in the fields of plumbing air supply venting and gas supply including a thorough understanding of the requirements of the National Fuel Gas Code as it relates to the installation of gas fired water heaters The service agency must also have a thorough understanding of this instruction manual and be able to perform repairs strictly in accordance with the servic...

Page 4: ...rs are available Breathing carbon monoxide can cause brain damage or death Always read and understand instruction manual Fire or Explosion Hazard Do not store or use gasoline or other flammable vapors and liquids in the vicinity of this or any other appliance Avoid all ignition sources if you smell Natural or LP gas Do not expose water heater control to excessive gas pressure Use only gas shown on...

Page 5: ... CODES IMPORTANT WHEN BRUSHING ON AN APPROVED NONCORROSIVE LEAK DETECTION SOLUTION DO NOT SPLASH SOLUTION ONTO ELECTRICAL CON NECTIONS SEE PAGE 27 M N A L B P D E Q F G DISCHARGE PIPE DO NOT CAP OR PLUG H I W K FLOOR DRAIN 6 MAXIMUM AIR GAP T V S U J R X O Z Y S GAS CONTROL VALVE THERMOSTAT IGNITER FLAME SENSE CONNECTOR MANIFOLD TUBE POWER SUPPLY TRANSFORMER CONNECTOR PRESSURE SWITCH FAN FV SENSOR...

Page 6: ... future users of this water heater will need it for future reference Service to the FVIR System should only be performed by a qualified technician Examples of a qualified technician include licensed plumbers authorized gas company personnel and authorized service personnel IMPORTANT The manufacturer and seller of this water heater will not be liable for any damages injuries or deaths caused by fai...

Page 7: ... ignition sources have been extinguished Fire or Explosion Hazard WARNING Read instruction manual before installing using or servicing water heater Improper use may result in fire or explosion Maintain required clearances to combustibles Keep combustibles such as boxes magazines clothes etc away from the water heater area Site Location Select a location near the center of the water piping system T...

Page 8: ...pply wholesalers and retailers and detect and react to leakage in various ways Sensors mounted in the metal drain pan that trigger an alarm or turn off the incoming water to the water heater when water is detected Sensors mounted in the metal drain pan that turn off the water supply to the entire home when water is detected in the metal drain pan Water supply shut off devices that activate based o...

Page 9: ...UPPLY WARNING Use a new CSA approved gas supply line Install a shut off valve Do not connect a natural gas water heater to an L P gas supply Do not connect an L P gas water heater to a natural gas supply Failure to follow these instructions can result in death explosion or carbon monoxide poisoning Explosion Hazard Gas Requirements IMPORTANT Read the rating plate to be sure the water heater is mad...

Page 10: ...w these instructions can result in death explosion or carbon monoxide poisoning Explosion Hazard Gas Pipe Capacity Table WARNING Explosion Hazard Gas leaks can not always be detected by smell Gas suppliers recommend that you use a gas detector approved by UL or CSA For more information contact your gas supplier If a gas leak is detected follow the What to do if you smell gas instructions on the co...

Page 11: ...by a qualified technician using the installation instructions Examples of a qualified technican include gas technicians authorized gas company personel and authorized service persons Failure to so do can result in death or carbon monoxide poisoning IMPORTANT Air for combustion and ventilation must not come from a corrosive atmosphere Any failure due to corrosive elements in the atmosphere is exclu...

Page 12: ... for ventilation and combustion air supply openings consideration must be given to the blocking effect of protection louvers grilles and screens These devices can reduce airflow which in turn may require larger openings to achieve the required minimum free area Screens must not be smaller than 1 4 mesh If the free area through a particular design of louver or grille is known it should be used in c...

Page 13: ...sing the manufacturer s instructions and local codes rules or regulations IMPORTANT If you lack the necessary skills required to properly install this venting system you should not proceed but get help from a qualified technician Draft Hood Installation Installation above elevation 5 400 ft 1 646 m from sea level Reducer Flue must be installed on 40 gallon unit Flat Side Of Hood Next To Water Conn...

Page 14: ...d prior to any elbow in the vent system IMPORTANT Existing vent systems must be inspected for obstructions corrosion and proper installation Chimney Connection IMPORTANT Before connecting a vent to a chimney make sure the chimney passageway is clear and free of obstructions The chimney must be cleaned if previously used for venting solid fuel appliances or fireplaces Also consult local and state c...

Page 15: ...the water heater and be easily accessible Know the location of this valve and how to shut off the water to the heater 6 A temperature and pressure relief valve must be installed in the opening marked Temperature and Pressure T P Relief Valve on the water heater A discharge line must be added to the opening of the T P Relief Valve Follow the instructions under Temperature and Pressure Relief Valve ...

Page 16: ... or other chemicals must not be used Chemicals that may contaminate the potable water supply must not be added to the piping system Closed System Thermal Expansion As water is heated it expands thermal expansion In a closed system the volume of water will grow As the volume of water grows there will be a corresponding increase in water pressure due to thermal expansion Thermal expansion can cause ...

Page 17: ...led into the T P valve discharge opening per the instructions manual 4 Locate the hot water outlet cold water inlet pipes to the water heater 5 Locate the slit running the length of a section of pipe insulation 6 Spread the slit open and slip the insulation over the cold water inlet pipe Apply gentle pressure along the length of the insulation to ensure it is fully seated around the pipe Also ensu...

Page 18: ...ctions for leaks Open the nearest hot water faucet and let it run for three 3 minutes to purge the water lines of air and sediment and to ensure complete filling of the tank The Electrical power may then be turned on Verify proper operation after servicing WARNING Electric Shock Hazard Disconnect power before servicing Replace all parts and panels before operating Failure to do so can result in de...

Page 19: ...ase review the following checklist and make any required installation upgrades or changes Questions Contact Residential Technical Assistance by referencing the phone number on the front of the Installation Instructions and Use Care Guide Installation Checklist Water Heater Location Water heater location is important and can affect system performance Please check the following Installation area fre...

Page 20: ... performed 3 Set the ON OFF switch on the gas control to the OFF postition 2 6 This appliance is equipped with a device which automatically lights the burner DO NOT TRY TO LIGHT THE BURNER BY HAND This appliance does not have a pilot It is equipped with an ignition device that will automatically light the burner Do not try to light the burner by hand BEFORE OPERATING smell all around the appliance...

Page 21: ... code 8 page 31 FIGURE 17 SEQUENCE OF OPERATION System will verify pressure switch operation and start a 5 second pre purge then air intake fan will turn off Ignitor will start a 12 second warm up period IGN will show on display Gas valve thermostat is de energized and air intake fan continues for a post purge time of approximately 5 seconds Water heater returns to standby mode Main burner flame i...

Page 22: ...thermostat see Figures 20 and 21 Using the lowest hot water temperature that meets your needs will also provide the most energy efficient operation of the water heater Never allow small children to use a hot water tap or to draw their own bath water Never leave a child or handicapped person unattended in a bathtub or shower NOTE A water temperature range of 120 F 140 F 49 C 60 C is recommended by ...

Page 23: ... the water heater cannot be used until the gas control valve thermostat is replaced by a qualified technician Contact your local dealer for service information losses and may satisfy your normal hot water needs If hot water use is expected to be more than normal a higher thermostat setting may be required to meet the increased demand When leaving your home for extended periods vacations etc Set th...

Page 24: ...es To drain the tank perform the following steps 1 Turn off the gas to the water heater at the manual gas shut off valve and turn off the electrical power to the gas control thermostat valve 2 Open a nearby hot water faucet until the water is not longer hot 3 Close the cold water inlet valve 4 Connect a hose to the drain valve and terminate it to an adequate drain or external to the building 5 Ope...

Page 25: ...e Manifold Burner Assembly 1 Turn off the gas supply to the water heater at the manual gas shut off valve This valve is typically located beside the water heater Note the position of the shut off valve in the open on position then proceed to turn it off Figure 3 2 Disconnect power supply to the heater 3 Remove the outer door Remove the 2 screw securing the manifold door assembly to the skirt 4 Dis...

Page 26: ...d dirt it may be necessary to check the air intake chamber screen more frequently 2 Use a vacuum cleaner with a hose attachment to remove any dust or debris that may have accumulated on the screen FIGURE 27 Cleaning the Combustion Chamber and Air Diverter Assembly 1 Follow procedure outlined in Removing the Manifold Burner Assembly 2 Use a vacuum cleaner shop vac to remove all loose debris in the ...

Page 27: ...heater Refer to the section of Draining and Flushing section and follow the procedure 5 Disconnect the the flame sense hot surface igniter wire power supply transformer pressure switch fan and display connector wires from the thermostat Figure 24 Disconnect the manifould tube at the thermostat Figure 24 6 Refer to Gas Piping section Figure 3 and disconnect the ground joint union in the gas piping ...

Page 28: ...MPERATURE REGULATION section BURNER FLAME YELLOW LAZY 1 Dirt in burner ports 2 Combustion air path restricted 3 Not enough dilution air for proper com bustion 4 Main burner line clogged 5 Obstruction in main burner orifice 6 Burner flame too high 7 Flame burns at orifice thermostat not functioning properly 8 Low gas pressure 1 Turn off heater and gas clean burner head 2 Check intake venting arrang...

Page 29: ...RMATION SOOTING 1 Insufficient secondary air 2 Low gas pressure 3 Water heater flue or vent system blocked 4 Thermostat not functioning properly 5 Heater installed in a confined area 6 Burner flame yellow lazy 1 Provide ventilation to water heater Check flue way flue baffle burner 2 Check with gas utility company 3 Clean locate source and correct 4 Replace thermostat 5 Provide fresh air ventilatio...

Page 30: ...sure supply and manifold gas pressures are within requirements in the installation manual Manifold gas pressure is non adjustable if pressure is off by more than 0 3 W C 75 Pa replace the lower control 2 Low supply voltage should be 115 125 VAC 3 Ensure flame sensor is making good contact with the burner flame ensure flame is steady 4 Ensure the flame sensor is clean use pad to clean the flame sen...

Page 31: ... power for 10 seconds and then back on If this error code will not clear and the ignitor resistance is within specifications replace the lower control 9 FV SENSE Flashing Flammable Vapor Sensor has detected the presence of flammable vapors and is in lockout 1 Do not touch any electrical switch do not use any phone in the building and do not try to CONTROL DISPLAY STATUS PROBLEM SOLUTION the error ...

Page 32: ... control must be replaced 15 All Segments Flashing The self diagnostic check has detected one or both of the temperature adjustment buttons are stuck 1 Press and release each of the temperature adjustment buttons If the above action does not clear the error the control will continue to regulate the water temperature at the last setting However settings will no longer be adjustable the upper contro...

Page 33: ...D DURING TRIAL FOR IGNITION IGNITOR TURNS OFF YES NO IS FLAME SENSE LOST IS REQUEST FOR HEAT SATISFIED GAS VALVE OFF COMBUSTION FAN OFF AFTER POST PURGE DELAY GAS VALVE CLOSES LESS THAN 3 TRIES FOR IGNITION GAS VALVE CLOSES LOST LESS THAN 4 TIMES YES YES TURN OFF COMBUSTION FAN AFTER POST PURGE DISPLAY ERROR 3 ONE HOUR AUTOMATIC RESTART TIME DELAY NO NO NO YES YES NO IS PRESSURE SWITCH PROVEN OPEN...

Page 34: ... w Retainer Clip 16 Manifold Door Gasket 17 Viewport Assembly 18 FV Sensor 19 Outer Door 20 Electrical Transformer 21 Pressure Switch REPAIR PARTS ILLUSTRATION LEGEND Special anode rod see Anode Rod Water Odor section Temperature and Pressure Relief Valve is required but may not be factory installed Unique FVIR System parts 4 1 2 3 6 5 7 8 9 10 11 12 14 19 18 21 20 Repair Parts List When ordering ...

Page 35: ... assembly which contains the manifold tube gasket manifold door manifold component block with retainer clip and flame sense hot surface igniter assembly Natural Gas Item 15 Contains manifold component block with retainer clip Item 16 Contains manifold door gasket Item 17 Contains viewport ITEM 13 ITEM 12 ITEM 14 ITEM 15 ITEM 16 ITEM 17 ...

Page 36: ...36 NOTES ...

Page 37: ...37 NOTES ...

Page 38: ...38 NOTES ...

Page 39: ...hniques for residential water heaters bearing a rating plate which has not been altered defaced or removed except as required by the warrantor used in an open system or in a closed system with a properly sized and installed thermal expansion tank operated with properly installed drip leg in the gas supply line fired with the fuel for which it was factory built fired at the factory rated input oper...

Page 40: ...RM DOES NOT CONSTITUTE PROOF OF PURCHASE OR PROOF OF INSTALLATION DISCLAIMERS NO EXPRESSED WARRANTY HAS BEEN OR WILL BE MADE ON BEHALF OF THE WARRANTOR WITH RESPECT TO THE MERCHANTABILITY OF THE HEATER OR THE INSTALLATION OPERATION REPAIR OR REPLACEMENT OF THE HEATER OR PARTS THE WARRANTOR SHALL NOT BE RESPONSIBLE FOR WATER DAMAGE LOSS OF USE OF THE UNIT INCONVENIENCE LOSS OR DAMAGE TO PERSONALPRO...

Reviews:

No comments

Related manuals for HIGH EFFICIENCY ATMOSPHERIC VENTGAS WATER HEATER

Brand: A.O. Smith Pages: 65

Brand: Eccotemp Pages: 90

Brand: Eccotemp Pages: 40

Brand: Eccotemp Pages: 19

Brand: SAER Elettropompe Pages: 16

Brand: Gorenje Tiki Pages: 152

Gas Log Grate Heater

Brand: Stoll Pages: 4

Mini-CHIEMSEE B 1100

Brand: SHG Pages: 26

Brand: Daikin Pages: 36

Brand: La Hacienda Pages: 5

Brand: Aqua MAX Pages: 56

Brand: Electrorad Pages: 16

HYDROMATIC HTS33A1

Brand: Pentair Pages: 8

Brand: Rheem Pages: 1

Brand: JABSCO Pages: 4

Brand: Alfa Laval Pages: 34

Brand: Bionaire Pages: 10

LIP-10A-TGG-LPG-BU

Brand: Fire Sense Pages: 18

Brands by name

0 1 2 3 4 5 6 7 8 9 A B C D E F G H I J K L M N O P Q R S T U V W X Y Z

Popular brands

Load more brands