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Installation Instructions and Use & Care Guide
A.O.Smith
FVIR GAS WATER HEATER
(FLAMMABLE VAPOR IGNITION RESISTANT)
FOR SPACEHEATINGAND POTABLEWATERHEATINGONLY.
NOT FOR USE IN MOBILEHOMES.
This water heater complies with ANSI Z21.10.1-current
edition regarding the accidental or unintended ignition of
flammable vapors, such as those emitted by gasoline.
For Your Safety
AN ODORANT IS ADDED TO THE GAS USED
Read and understand instruction
BY THIS WATER HEATER.
manual and safety messages
before insta
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Water Heater Safety .......................................................................................................................................................................... 1 -2 Safe Installation, Use and Service ...................................................................................................................................................... 3 Safety Precautions .................................................................................................
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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 is very important that the meaning of each safety message is understood by you and others who install, use or service this water heater. messages that
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Fire Hazard Read and understand instruction manual and safety messages For continued protection against before installing, operating or riskof fire: servicing this water heater. • Do not install water heater on Failure to follow instructions and carpeted floor. safety messages could result in death or serious injury. • Do not operate water heater if flood damaged. Instruction manual must remain with water heater. Water temperature over 125°F (52°C) can cause severe burns Explosion Hazard instant
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GET TO KNOW YOUR WATER HEATER - GAS MODELS J Inner Door S Thermostat A Vent Pipe B Draft hood K Outer door T Drain Valve L Union U Pilot and Main Burner C Anode (Not Shown) D Hot Water Outlet M Inlet Water Shut-off Valve V Flue E Insulation N Cold Water Inlet W Drain Pan F Gas Supply Piping O Inlet Dip Tube X Piezo Igniter G Manual Gas Shut-off Valve P Temperature & Pressure Relief Valve Y Base Filter H Ground Joint Union Q Rating Plate R Flue Baffle I Drip Leg (Sediment Trap) INSTALL IN ACCORDA
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Unpacking the Water Heater 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 Excessive Weight Hazard installation errors or improper installation environments. Please review the Installation Checklist found at the end of Usetwo or morepeopleto moveandinstallthe waterheater. the install
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If flammable liquids or vapors have spilled or leaked in Location Requirements the area of the water heater, leave the area immediately and call the fire department from a neighbor's home. Do not attempt to clean the spill until all ignition sources have been extinguished. Carbon Monoxide Poisoning Hazard Donotinstallin a mobilehome. Dong so can resut n carbonmonoxde poson ngand death. Fire or Explosion Hazard • Readinstructionmanualbeforeinstalling,usingor The FVlR System is designed to reduce
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Pmpe_y Damage Hazard EXHAUST FAN • AJlwater heaterseventually leak • Do notinstall without adequate drainage, / REVERSE FLOW L. OF GASES 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 FIGURE 1. floors of the structure. Due to the normal corrosive action of water, the tank will eventually leak after an extended period Clearances and Accessibility of time. Also any exte
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MANUAL GAS _ SHUT-OFF VALVE--_ GROUND-------= DISCHARGE PiPE JOINT (DO NOT PLUG OR CAP) UNION CHECK WITH LOCAL UTILITY FOR MINIMUM HEIGHT Explosion Hazard • Usea new CSAapprovedgassupplyline. 3" MINIMUM • Installa shut-offvalve. t/ _6" MAXIMUM DRIP LEG_ _ T AIR GAP • Donot connecta naturalgas waterheaterto an L.P.gas SUITABLE DRAIN "--_'_ f supply. FIGURE 3. • Donot connectan L.P.gaswater heaterto a naturalgas Gas Pressure supply. • Failureto follow theseinstructionscan resultin death, explosion
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LP Gas Only Liquefied petroleum gas is over 50% heavier than air and in the occurrence of a leak in the system, the gas will settle at floor level. Basements, crawl spaces, closets and areas below ground level will serve as pockets for the accumulation of gas. Before lighting an L.R gas water heater, smell all around the appliance at floor level. If you smell gas, follow the instructions as given in the warning on the front page. When your L.P. tank runs out of fuel, turn off the gas at Explosio
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TABLE 3 Typical Room BTUH Input Carbon Monoxide Warning with 8' Ceiling Water heater must be vented to outdoors. 9x21 30,000 Vent must be installed by a qualified technician using the installation instructions. 14 x20 45,000 Examples of a qualified technican include: gas 15x25 60,000 technicians, authorized gas company personel, and 15x31 75,000 authorized service persons. 20 x 28 90,000 Failure to so do can result in death or carbon monoxide poisoning. 105,000 20 x 33 25 x 30 120,000 IMPORTANT:
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fresh air can be taken from the outdoors or from crawl or 12" MAXIMUM attic spaces that freely communicate with the outdoors, Attic or crawl spaces cannot be closed and must be properly ventilated to the outside, Ductwork must be of the same cross-sectional area as CLOSET the free area of the opening to which they connect, The ___ OR PERMANENT J OTHER minimum dimension of rectangular air ducts cannot be less OPENINGS TO CONFINED than three inches, THE OUTSIDE OR SPACE ADDITIONAL The size of each
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GABLE VENT j TO OUTDOORS ALTERNATIVE OPENING INSTALLABOVE LOCATION INSULATION 1SQ. INCH CONFINED CONFINED • OUTLET PER3000 BTUH AIR TO SPACE ATTIC 1 SQ. INCH PER 4000 BTUH ALTERNATE AIR FROM AIR INLET ALL AIR FROM OUTDOORS - USING A SINGLE PERMANENT OPENING 1 SQ. INCH PER OPEN _1_ FIGURE 8B. 4000 BTUH FOUNDATION "_ VENT Vent Pipe System ALL AIR FROM OUTDOORS: INLET AIR FROM VENTILATED CRAWL SPACE/OUTLET AIR TO VENTILATED ATTIC This water heater uses a non-direct, single-pipe vent FIGURE 6. syste
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• The connector must be installed above the extreme Align the legs of the draft hood with the slots provided. Insert the legs and secure the draft hood to the water bottom of the chimney to prevent potentially blocking heater's top with the four screws provided as shown in the flue gases. Figure 9. Do not alter the draft hood in any way. If you are • The connector must be firmly attached and sealed to replacing an existing water heater, be sure to use the draft prevent it from falling out. hood
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'_ LISTED VENT CAP 2 FT. MINIMUM ABOVE ANY OBJECT Piping Installation WITHIN 10 FT. HORIZONTALLY 3 FT. MINIMUM SUPPORT Piping, fittings, and valves should be installed according to the installation drawing (Figure 13). If the indoor *MAINTAIN installation area is subject to freezing temperatures, the TYPE B DOUBLE CLEARANCE WALL VENT PIPE water piping must be protected by insulation. The water supply pressure should not exceed 80 psi. If t this occurs, a pressure reducing valve with a bypass may
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Please note the following: IN A CLOSED SYSTEM USE A _..THERMAL EXPANSION TANK • The system should be installed only with piping that is COLD WATER SUPPLY TO FIXTURES suitable for potable (drinkable) water such as copper, PRESSURE REDUCING VALVE CPVC, or polybutylene. This water heater must not be HOTWA_--T_ H BYPASS installed using iron piping or PVC water piping. D WATER OUTLET • Use only pumps, valves, or fittings that are compatible INLET COLD WATER INLET VALVE with potable water. (SHUT-OFF V
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valve or have any reducing coupling installed in the Temperature and Pressure Relief Valve discharge line. • Must not be capped, blocked, plugged or contain any valve between the relief valve and the end of the dis- charge line. Explosion Harzard • Must terminate a maximum of six inches above a floor drain or external to the building. Temperature-pressure relief valve must comply with ANSI • Must be capable of withstanding 250°F (121°C) without Z21.22-CSA 4.4 and ASME distortion. code. • Must be
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• Be sure to follow the manual(s) shipped with the air Also see Water System Piping for additional instructions handler system. on the safe and correct installation and operation of this water heater. • This water heater is not to be used as a replacement for an existing boiler installation. MUST BE VERTICAL TO HDoOTMwSET/CR f REMOVE AIR BUBBLES _, EXPANSION TANK • Do not use with piping that has been treated with OUT / VACUUM _ pCOLD WATER INLET chromates, boiler seal or other chemicals and do
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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? Contact Residential Technical Assistance by referencing the phone number on the water heater. Installation Checklist Water Heater Location [] Fresh air
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Lighting Instructions Read and understand these directions thoroughly before attempting to light or re-light the pilot. Make sure the view Explosion Hazard port is not missing or damaged. (See Figure 23) Make sure the tank is completely filled with water before lighting Replace view port if glass is missing the pilot. Check the rating plate near the gas control valve/ or damaged. thermostat for the correct gas. Do not use this water heater with any gas other than the one listed on the rating Fai
