A.O. Smith Water Heater manual

Installation Instructions and Use & Care Guide A.O.Smith FVIR GAS WATER HEATER (FLAMMABLE VAPOR IGNITION RESISTANT) FOR SPACE HEATING AND POTABLEWATER HEATING ONLY. NOT FOR USE IN MOBILE HOMES. This water heater complies with ANSI Z21.10.1-current edition regarding the accidental or unintended ignition of flammable vapors, such as those emitted[...]

Water Heater Safety .......................................................................................................................................................................... 1 -2 Safe Installation, Use and Service .......................................................................................................................[...]

Your safety and the safety of others is extremely important in the installation, use and servicing of this water heater. Many safety-related messages and instructions have been provided in this manual and on your water heater to warn you and others of a potential hazard. Read and obey all safety messages and instructions throughout this manual. It [...]

Read and understand instruction manual and safety messages before installing, operating or servicing this water heater. Failure to follow instructions and safety messages could result in death or serious injury. Instruction manual must remain with water heater. Water temperature over 125°F (52°C) can cause severe burns instantly resulting in seve[...]

GET TO KNOW YOUR WATER HEATER - GAS MODELS A Vent Pipe B Draft hood C Anode (Not Shown) D Hot Water Outlet E Insulation F Gas Supply Piping G Manual Gas Shut-off Valve H Ground Joint Union I Drip Leg (Sediment Trap) J Inner Door S Thermostat K Outer door T Drain Valve L Union U Pilot and Main Burner M Inlet Water Shut-off Valve V Flue N Cold Water [...]

Important Information About This Water Heater This gas water heater was manufactured to voluntary safety standards to reduce the likelihood of a flammable vapor ignition incident. New technology used in meeting these standards makes this product more sensitive to installation errors or improper installation environments. Please review the Installat[...]

Location Requirements Carbon Monoxide Poisoning Hazard Do not install in a mobilehome. Do ng so can resut n carbonmonox de po son ng and death. The FVlR System is designed to reduce the risk of flammable vapor-related fires. The patented system protects your family by trapping the burning vapors within the water heater combustion chamber through th[...]

Pmpe_y Damage Hazard • AJl water heaters eventually leak • Do not install without adequate drainage, IMPORTANT: The water heater should be located in an area where leakage of the tank or connections will not result in damage to the area adjacent to the water heater or to lower floors of the structure. Due to the normal corrosive action of water[...]

Explosion Hazard • Use a new CSA approved gas supply line. • Installa shut-off valve. • Do not connect a naturalgas water heater to an L.P. gas supply. • Do not connect an L.P. gas water heaterto a naturalgas supply. • Failure to follow these instructions can result in death, explosion, or carbonmonoxide poisoning. Gas Requirements IMPORT[...]

LP Gas Only Explosion Hazard Have a qualified person make sure L.P. gas pressure does not exceed 13" water column. Examples of a qualified person include: licensed plumbers, authorized gas company personnel, and authorized service personnel. Failure to do so can result in death, explosion, or fire. Liquefied petroleum gas is over 50% heavier t[...]

Carbon Monoxide Warning Water heater must be vented to outdoors. Vent must be installed 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. IMPORTA[...]

12" MAXIMUM PERMANENT OPENINGS TO THE OUTSIDE OR ADDITIONAL ROOMS WITHIN THE BUILDING ! r-3 I 12" MAXIMUM J FIGURE 4. CLOSET ___ OR J OTHER CONFINED SPACE All Air from Inside the Building When additional air is to be provided to the confined area from additional room(s) within the building, the total volume of the room(s) must be of suffi[...]

CONFINED GABLE VENT j TO OUTDOORS INSTALLABOVE INSULATION • OUTLET AIR TO ATTIC 1 SQ. INCH PER 4000 BTUH ALTERNATE AIR FROM AIR INLET 1 SQ. INCH PER OPEN _1_ 4000 BTUH FOUNDATION "_ VENT ALL AIR FROM OUTDOORS: INLET AIR FROM VENTILATED CRAWL SPACE/OUTLET AIR TO VENTILATED ATTIC FIGURE 6. • GABLE VENT TO OUTDOORS _" INSTALL ABOVE INSUL[...]

Align the legs of the draft hood with the slots provided. Insert the legs and secure the draft hood to the water heater's top with the four screws provided as shown in Figure 9. Do not alter the draft hood in any way. If you are replacing an existing water heater, be sure to use the draft hood supplied with this water heater. Vent Pipe Size It[...]

SUPPORT *MAINTAIN CLEARANCE t 3 FT. MINIMUM '_ LISTED VENT CAP 2 FT. MINIMUM ABOVE ANY OBJECT WITHIN 10 FT. HORIZONTALLY TYPE B DOUBLE WALL VENT PIPE VENT CONNECTOR SLOPE UP 1/4 IN. PER FT. MINIMUM 1 **MAINTAIN _ SPECIFIED CLEARANCE VERTICAL GAS VENT SYSTEM WITH TYPE B DOUBLE WALL VENT PIPE. FIGURE 11. 5 FT. MINIMUM f SUPPORT STRAP. *MA,NTA,N [...]

HOTWA_--T_ OUTLET IN A CLOSED SYSTEM USE A _..THERMAL EXPANSION TANK COLD WATER SUPPLY TO FIXTURES PRESSURE REDUCING VALVE H BYPASS D WATER INLET COLD WATER INLET VALVE (SHUT-OFF VALVE) TEMPERATURE AND PRESSURE (T&P) RELIEF VALVE (OPTIONAL TOP T&P RELIEF VALVE NOT SHOWN) i,---- DISCHARGE PIPE (DO NOT CAP OR PLUG) MASSACHUSETTS: INSTALL DRAI[...]

Temperature and Pressure Relief Valve Explosion Harzard Temperature-pressure relief valve must comply with ANSI Z21.22-CSA 4.4 and ASME code. • Properly sized temperature- pressure relief valve must be installed in opening provided. • Can result in overheating and excessive tank pressure. • Can cause serious injury or death. (T&P) RELIEF [...]

• Be sure to follow the manual(s) shipped with the air handler system. • This water heater is not to be used as a replacement for an existing boiler installation. • Do not use with piping that has been treated with chromates, boiler seal or other chemicals and do not add any chemicals to the water heater piping. • If the space heating syste[...]

This gas water heater was manufactured to voluntary safety standards to reduce the likelihood of a flammable vapor ignition incident. The new technology used in meeting these standards makes this product more sensitive to installation errors. Please review the following checklist and make any required installation upgrades or changes. Questions? Co[...]

Lighting Instructions Read and understand these directions thoroughly before attempting to light or re-light the pilot. Make sure the view port is not missing or damaged. (See Figure 23) Make sure the tank is completely filled with water before lighting the pilot. Check the rating plate near the gas control valve/ thermostat for the correct gas. Do[...]

Robertshaw Gas Control Valve/Thermostat - Lighting Instructions FOR YOUR SAFETY READ BEFORE LIGHTING I WARNING: If you do not follow theseinstructions exactly, a fire or explosion I may result causing property damage, personalinjury or loss of life. I A. This appliance has a pilot which is lighted by a C. Use only your hand to push in or turn the g[...]

Burner Flames Inspect the burner flames through the viewport and compare them to the drawings in Figure 18. A properly operating burner should produce a soft blue flame. Blue tips with yellow inner cones are satisfactory. The tips of the flame may have a slight yellow tint. The flame should not be all yellow or have a sharp blue-orange color. Conta[...]

NOTE: During low demand periods when hot water is not being used, a lower thermostat setting will reduce energy 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[...]

Anode Rod/Water Odor Each water heater contains at least one anode rod, which will slowly deplete while protecting the glass-lined tank from corrosion and prolonging the life of the water heater. Once the anode is depleted, the tank will start to corrode, eventually developing a leak. Certain water conditions will cause a reaction between this rod [...]

Temperature and Pressure Relief Valve Explosion Harzard Temperature-pressure relief valve must comply with ANSI Z21.22-CSA 4.4 and ASME code. • Properly sized temperature- pressure relief valve must be installed in opening provided. • Can result in overheating and excessive tank pressure. • Can cause serious injury or death. Manually operate [...]

2. Check the burner to see if it is dirty or clogged. The burner may be cleaned with soap and hot water (Figure 24). PILOT ASSEMBLY SCREWS, BURNER (BOTTOM VIEW) FIGURE 24. Replacing the Thermocouple 1. Remove the manifold/burner assembly as directed previously. 2. Remove the retainer clip from the back of the two piece wire connector and remove the[...]

10. Reposition the two piece wire connector in the manifold door opening and secure it with the retainer clip. 11. Carefully bend the new pilot tube and thermocouple to match the bend of the manifold tube. NOTE: When bending DO NOT crimp or crease the pilot tube or thermocouple. (Figure 25) 12. Place the new brass ferrule nut on the pilot tube befo[...]

7. Reconnect the igniter wire. 8. Turn gas supply on and refer to the Lighting Instruc- tions. , With the burner lit, check the gas control valve/ thermostat supply line, two piece wire connector, manifold tube, and pilot tube connections for leaks. Check for leaks by brushing on an approved noncorrosive leak detection solution. Bubbles forming ind[...]

Replacing the Gas Valve: 1. To replace the gas control valve/thermostat, reassemble in reverse order. When replacing the gas control valve/thermostat, thread a correctly sized pipe into the inlet and use it to turn the gas valve (clockwise.) DO NOT OVER TIGHTEN or damage may result. NOTE: Use an approved TEFLON (R_ tape or pipe compound only on the[...]

PROBLEM CORRECTIVE ACTION HIGH OPERATION COSTS INSUFFICIENT HOT WATER SLOW HOT WATER RECOVERY DRIP FROM RELIEF VALVE POSSIBLE CAUSE(S) 1. Thermostat set too high 2. Sediment or lime in tank 3. Water heater too small for job 4. Wrong piping connections 5. Leaking faucets 6. Gas leaks 7. Wasted hot water 8. Long runs of exposed piping 9. Hot water pi[...]

Does pilot light go out when LNO .d_l Check Draft. (See Checkingthe I butt°n is released_ r -_Draft section of this manua., YES "_ . iAre the wires from the gas Has the thermal switch _NO m_.[ contro_ valve/thermostat firmly tripped? i _'i connected to the switch? YES YES Check for insufficient combustion air. !, ate there openings for m[...]

When ordering repair parts always give the following information: 1. Model, serial, and product number 2. Type of gas 3. Item number 4. Parts description Repair Parts List Item Parts Description No. 1 DRAFT HOOD 2 REDUCER RING - SOME MODELS 3 FLUE BAFFLE 4 HEAT TRAP/NIPPLES(COLD) - SOME MODELS 5 HEAT TRAP/NIPPLES (HOT) - SOME MODELS 6 COLD WATER DI[...]

Listed Parts Kits and Illustrations Item 12: Item 13: Item 14: Item 15: Item 16: Item 17: Item 18: Item 19: Item 20: Item 21: Item 22: Pilot/Pilot Tube Assembly kit, which contains the pilot assembly, thermocouple, igniter electrode and retainer clip (Natural Gas) Pilot/Pilot Tube Assembly kit, which contains the pilot assembly, thermocouple, ignit[...]

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LIMITED RESIDENTIAL GAS WARRANTY THIS WARRANTY IS APPLICABLE TO THE ORIGINAL OWNER ONLY in accordance with the warranty terms and conditions specified below. The warrantor will furnish the ORIGINAL OWNER, 1) a replacement water heater of equivalent size and current model if the glass-lined tank in this water heater leaks and, 2) a replacement part [...]

LIMITATION ON IMPLIED WARRANTIES Implied warranties, including any warranty of merchantability imposed on the sale of this heater under state law are limited to one year duration for the heater or any of its parts. Some states do not allow limitations on how long an implied warranty lasts, so the above limitations may not apply to you. CLAIM PROCED[...]