A.O. Smith BTX-80 SERIES 100 - Manuals

7 tYpIcal InstallatIon * cautIon harness has 120 vac. In operatIon. ** see “plannInG the vent sYsteM”, “condensate” and “Blower asseMBlY InstallatIon” for more information. *** the side recirculation loop connections may not be used as the primary water inlet and outlet connections. For your conveni...

8 tYpIcal InstallatIon condensate hose and draIn pan FIGURE 1 (continued).

9 tYpIcal InstallatIon MIXInG valves DANGER Water temperature over 125°F (52°C) can cause severe burns instantly resulting in severe injury or death.Children, the elderly and the physically or mentally disabled are at highest risk for scald injury.Feel water before bathing or showering.Temperature l...

10 rouGh-In-dIMensIons rough-In-dimensions Top/Side Inlet and Outlet: 3/4” NPT Gas Inlet: 1/2” NPT capacity and Gas and electrical characteristics 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 ma...

11 facts to consIder aBout the locatIon Carefully choose an indoor location for the new water heater, because 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 water heater is not for use in manufact...

13 Such a condition often will result in a yellow, luminous burner flame, causing sooting of the combustion chamber, burners and flue tubes and creates a risk of asphyxiation. Do not install the water heater in a confined space unless an adequate supply of air for combustion and ventilation is broug...

15 This water heater should not be connected to any heating systems or component(s) used with a non-potable water heating appliance. All piping components connected to this unit for space heating applications should be suitable for use with potable water. Toxic chemicals, such as those used for boil...

16 therMal eXpansIon As water is heated, it expands (thermal expansion). In a closed system the volume of water will grow when it is heated. As the volume of water grows there will be a corresponding increase in water pressure due to thermal expansion. Thermal expansion can cause premature tank fail...

17 discharge opening must not be blocked or reduced in size under any circumstances. Excessive length, over 30 feet (9.14 m), or use of more than four elbows can cause restriction and reduce the discharge capacity of the valve.No valve or other obstruction is to be placed between the Temperature-Pre...

18 A gas line of sufficient size must be run to the water heater. Consult the current edition of National Fuel Gas Code (ANSI Z223.1/NFPA 54) or the Natural Gas and Propane Installation Code (CAN/CSA B149.1) and your gas supplier concerning pipe size.There must be: • A readily accessible manual shut...

19 Never use this water heater unless it is completely full of water. To prevent damage to the tank, the tank must be filled with water. Water must flow from the hot water faucet before turning “ON” gas to the water heater. To fill the water heater with water: 1. Close the water heater drain valve b...

20 terMInatIon clearances sIdewall power vent V X VENT TERMINAL AIR SUPPLY INLET AREA WHERE TERMINAL IS NOT PERMITTED v v A G V FIXED CLOSED FIXED CLOSED OPERABLE OPERABLE V C B B B B F B V V A J V H M X X V V K B E D L POWER VENT (using room air for combustion) EXTERIOR CLEARANCES FOR SIDEWALL VENT...

21 plannInG the vent sYsteM Plan the route of the vent system from the discharge of the blower to the planned location of the vent terminal. Refer to VAA instruction on page 25 while planning the vent system.1. Layout total vent system to use a minimum of vent pipe and elbows.2. This water heater is...

22 The condensate trap may be primed by filling the CONDENSATE U-ASSEMBLY with tap water while the water heater is not operating. The system is fully primed when the water level reaches the adaptor connected into the Tee. In most installations the water heater will self-prime the condensate trap dur...

23 cautIon LABEL ALL WIRES PRIOR TO DISCONNECTION WHEN SERVICING CONTROLS. WIRING ERRORS CAN CAUSE IMPROPER AND DANGEROUS OPERATION. VERIFY PROPER OPERATION AFTER SERVICING. power vent wIrInG scheMatIc - fIGure 19. may be easier to mark both the inside and outside wall. Align holes by drilling a hol...

24 InstallatIon of vent sYsteM, sIdewall With the route of the venting system and selection of materials completed, as discussed in the section of this manual titled PLANNING THE VENT SYSTEM, the through the wall vent terminal in place and the first section of piping, up to first elbow, installed at...

25 vent attenuatIon asseMBlY InstallatIon InstructIons The Vent Attenuation Assembly (VAA) is designed to provide a reduction in fan noise created in the blower wheel. This installation of this VAA is optional. Review directions thoroughly prior to installing the new VAA. Please contact the manufact...

28 B. deburring Use a knife, plastic pipe deburring tool, or file to remove burrs from the end of small diameter pipe. Be sure to remove all burrs from around the inside as well as the outside of the pipe. A slight chamfer (bevel) of about 10°-15° should be added to the end to permit easier insertio...

29 for Your safetY read Before operatInG warnInG: 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 equipped with an ignition device which automatically lights the b...

30 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 temperature be set for the lowest temperature which satisfies your hot water needs. This will also provide the most energy efficient operation of the wate...

31 for Your InforMatIon start 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. stranGe sounds Possible noises due to expansion and contracti...

32 ventInG sYsteM InspectIon At least once a year a visual inspection should be made of the venting system. You should look for:1. Obstructions which could cause improper venting. The combustion and ventilation air flow must not be obstructed. 2. Damage or deterioration which could cause improper ve...

33 The anode rod is used to protect the tank from corrosion. Most hot water tanks are equipped with an anode rod. The submerged rod sacrifices itself to protect the tank. Instead of corroding tank, water ions attack and eat away the anode rod. This does not affect water’s taste or color. The rod mus...

34 leaKaGe checKpoInts Never use this water heater unless it is completely filled with water. To prevent damage to the tank, the tank must be filled with water. Water must flow from the hot water faucet before turning “ON” gas to the water heater. A *Condensation may be seen on pipes in humid weathe...

35 trouBleshootInG GuIdelInes trouBle shootInG Please check guidelines below. For your safety, water heater service should be performed only by a qualified service technician. Read the GENERAL SAFETY INFORMATION section first. INTELLI-VENT TROUBLESHOOTING CHART - USER CONTROL proBleM solutIon Inadeq...

36 trouBleshootInG GuIdelInes trouBle shootInG Please check guidelines below. For your safety, water heater service should be performed only by a qualified service technician. Read the GENERAL SAFETY INFORMATION section first. INTELLI-VENT TROUBLESHOOTING CHART - USER CONTROL PROBLEM SOLUTION Igniti...

37 trouBleshootInG GuIdelInes trouBle shootInG Please check guidelines below. For your safety, water heater service should be performed only by a qualified service technician. Read the GENERAL SAFETY INFORMATION section first. INTELLI-VENT TROUBLESHOOTING CHART - USER CONTROL PROBLEM SOLUTION 15 # L...

39 limited warranty A. O. Smith Corporation, the warrantor, extends the following LIMITED WARRANTY to the owner of this water heater.1. the tanK If the glass-lined tank in this water heater shall prove upon examination by the warrantor to have leaked due to natural corrosion from potable water there...