A.O. Smith BTX-80 SERIES 100 Instruction Manual Download Page 1

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Instruction Manual

PRINTED 0810

197086-004

Keep thIs Manual In the pocKet on heater for future reference

whenever MaIntenance adjustMent or servIce Is requIred.

power vented Gas Models w/hot surface IGnItIon

Model BtX-80 serIes 100

all technIcal and warrantY questIons:

SHOULD BE DIRECTED TO THE LOCAL DEALER FROM WHOM THE WATER HEATER WAS

PURCHASED. IF YOU ARE UNSUCCESSFUL, PLEASE WRITE TO THE COMPANY LISTED ON THE RATING PLATE ON THE WATER HEATER.

coMMercIal Gas water heaters

•

for Your safety

•

AN ODORANT IS ADDED TO THE GAS USED

BY THIS WATER HEATER.

500 Tennessee Waltz Parkway

Ashland City, TN 37015

Low Lead Content

Summary of Contents for BTX-80 SERIES 100

Page 1: ...MODEL BTX 80 SERIES 100 ALL TECHNICAL AND WARRANTY QUESTIONS SHOULD BE DIRECTED TO THE LOCAL DEALER FROM WHOM THE WATER HEATER WAS PURCHASED IF YOU ARE UNSUCCESSFUL PLEASE WRITE TO THE COMPANY LISTED...

Page 2: ...alert symbol indicates a potentially hazardous situation which if not avoided could result in property damage WARNING CAUTION CAUTION DANGER All safety messages will generally tell you about the type...

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

Page 4: ...4 GENERAL SAFETY INFORMATION at least 18 45 7cm above the floor This will reduce but not eliminate the risk...

Page 5: ...d Cleveland OH44131 NFPAdocumentsarealsoavailablefromNational Fire Protection Association 1 Batterymarch Park Quincy MA 02269 3 The water heater when installed must be grounded in accordance with the...

Page 6: ...feet above grade directly in line with the exhaust vent terminal for the horizontally vented gas fueled heating appliance or equipment The sign shall read in print size no less than one half 1 2 inch...

Page 7: ...Exhaust Tee GG Elbow GET TO KNOW YOUR WATER HEATER GAS MODELS A Vent Pipe B Anode C Hot Water Outlet D Outlet 120 VAC F Gas Supply G Main Manual Gas Shut Off Valve H Ground Joint Union J Dirt Leg K O...

Page 8: ...8 TYPICAL INSTALLATION CONDENSATE HOSE AND DRAIN PAN FIGURE 1 continued...

Page 9: ...ship for normal adult skin If anyone using hot water provided by the water heater being installed fits into one of these groups or if there is a local code or state law requiring a certain water tempe...

Page 10: ...cs All models Maximum Supply Pressure 14 inches W C 3 48kPa Minimum Supply Pressure Natural Gas 5 0 inches W C 1 24kPa Minimum Pressure must be maintained under both load and no load static and dynami...

Page 11: ...talled 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 s...

Page 12: ...rine based chemicals refrigerants etc in addition to being highly flammable in many cases will also react to form corrosive hydrochloric acid when exposed to the combustion products of the water heate...

Page 13: ...e the size of openings providing fresh air into confined spaces EXHAUST FANS Where exhaust fans are installed additional air shall be provided to replace the exhausted air When an exhaust fan is insta...

Page 14: ...a reference for the openings that provide fresh air into confined spaces only Do not refer to these illustrations for the purpose of vent installation See Installation of Vent System on pages 19 26 fo...

Page 15: ...e requirements or such conditions as high line pressure among others have installed devices such as pressure reducing valves check valves and back flow preventers Devices such as these cause the water...

Page 16: ...the T P valve Secure all insulation using tape Temperature Pressure Relief Valve Explosion Hazard Temperature Pressure Relief Valve must comply with ANSI Z21 22 CSA 4 4 and ASME code Properly sized T...

Page 17: ...P valve is not intended for the constant relief of thermal expansion Aproperly sized thermal expansion tank must be installed on all closed systems to control thermal expansion see Closed Water Syste...

Page 18: ...system by closing itsindividualmanualShut offvalveduringanypressuretestingofthegas supply piping system at test pressures equal to or less than 1 2 pound per square inch 3 5 kPa Connecting gas piping...

Page 19: ...uctions Assemble Vent Pipe Assemblies 1 2 and 3 See Figure 1 prior to cementing The preferred orientation of Vent Pipe Assembly 1 Condensate U Assembly is shown in Figure 16 However this assembly may...

Page 20: ...0 cm 12 inches 30 cm K Clearance to a mechanical air supply inlet 6 feet 1 83 m 3 feet 91 cm above if within 10 feet 3 m horizontally E Clearance to unventilated soffit 12 inches 30 cm 12 inches 30 cm...

Page 21: ...rectmaterialasdetailedabovehasbeenused andthatminimum ormaximumventlengthsandterminallocationasdetailedinthismanual have been met Carefully inspect entire venting system for any signs of cracks or fra...

Page 22: ...hat the plastic tubing is still attached from the air pressure switch to the port on the blower housing Make sure the plastic tubing is not folded anywhere between the pressure switch and the blower h...

Page 23: ...ine This will allow the vent to easily slide through the opening The resulting gap will be covered up by the Vent Terminal cover plate Repeat this step on inside wall if necessary SEQUENCE OF INSTALLA...

Page 24: ...ighest anticipated snow level install a snorkel as shown in bottom portion of Figure 20 NOTE With the installation of a snorkel it is necessary to use two 90 elbows that shall be considered along with...

Page 25: ...cement not included with kit and glue the two inch PVC pipe coming from the blower into the VAA 3 Perform the same sequence on the PVC pipe coming from the exhaust side vent terminal side of the VAA 4...

Page 26: ...and the vent pipe system Air leaks will allow flue gas by products to disseminate into the room creating an unsafe environment and could cause illness asphyxiation and or even death FIGURE 24 Typical...

Page 27: ...and above PRIMER 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 cleanin...

Page 28: ...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 pr...

Page 29: ...R buttons together and holding for 1 second Then press the COOLER button until the WARM indicator light appears 2 Set the ON OFF switch on the blower control box to the OFF position 3 Turn off all ele...

Page 30: ...c does not have access If a suitable area is not available a cover should be installed over the thermostat to prevent tampering Thewatertemperaturesettingwasfactorysetatthelowesttemperature Pressing t...

Page 31: ...cal water heater supplier or service agency for further information concerning an Anode Replacement Kit and this chlorination treatment If the smelly water persists after the anode replacement and chl...

Page 32: ...uld be made of the main burner and the hot surface igniter assembly for proper flame characteristics and ignition sequences This can be done by removing the Outer Door and viewing the main burner oper...

Page 33: ...have a thermal expansion tank installed is not covered under the limited warranty Thermal expansion tanks must be installed on all closed water systems DO NOT PLUG THE TEMPERATURE PRESSURE RELIEF VALV...

Page 34: ...ose 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 wat...

Page 35: ...control does not energize the blower replace the Intelli Vent control If the blower fails to Blower may run continuously in start when energized replace the blower assembly this condition 2 Ensure the...

Page 36: ...ff for 10 20 seconds then on again to clear this error code 4 Ensure the flame sensor is clean use ultra fine steel wool or Scotch Brite pad to clean flame sensor 5 Ensure the hot surface ignitor is p...

Page 37: ...in tolerance 1 Ensure air pressure switch hose is not kinked or clogged ensure the blower housing is clear of any condensation 2 Check vent temperature limit switch if it is determined that the vent t...

Page 38: ...38 These guidelines should be utilized by a qualified service agent TROUBLESHOOTING GUIDELINES TROUBLESHOOTING GUIDELINES...

Page 39: ...unless an effective method of controlling thermal expansion is also installed at the heater s and operational at all times The relief valve installed on the heater is not an acceptable method 4 SERVI...

Page 40: ...40 500 Tennessee Waltz Parkway Ashland City TN 37015 Technical Support 800 527 1953 Parts 800 433 2545 Fax 800 644 9306 www hotwater com Copyright 2010 A O Smith Corporation All rights reserved...

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A.O. Smith BTX-80 SERIES 100, Instruction Manual

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