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INSTALLATION & OPERATING INSTRUCTION MANUAL MODEL NOS : FOR NAT . GAS ONLY 2001612 ; 2001622 3501512 ; 3501522 3501912 ; 3501922 5001512 ; 5001522 5001912 ; 5001922 6501512 ; 6501522 6501912 ; 6501922 350 MODEL SERIES SHOWN READ THIS OWNERS MANUAL MODEL NOS . FOR L . R GAS ONLY CAREFULLY BEFORE YOU INSTALL 2001611 2001621 3501511 3501521 YOUR NEW WILLIAMS 3501911 3501921 5001511 ; 5001521 VENTED ROOM HEATER 5001911 ; 5001921 6501511 ; 6501521 6501911 ; 6501921 WARNING : If the information in this l WARNING : Improper installation , adjust - manual is not followedexactly , a fire or ex - ment , alteration , service or maintenance plosion may result causing property I can cause injury or property damage . damage , personal injury or loss of life . Refer to this manual . For assistance or - - Do notstore or use gasolineor other flam - additional information consult a qualified mable vapors and liquids in the vicinity Installer , service agency or the gas of this or any other appliance . supplier . - - WHAT TO DO IF YOU SMELL GAS • Open all windows . WARNING : Do not install any of these fur - • Do not try to light any appliance . naces ( Natural or L . P . Gas ) in mobile • Do not touch any electrical switch ; do homes , trailers , or recreational vehicles . not use any phone in your building . • Extinguish any open flame . • Immediatelycall yourgas supplierfrom a neighbor's phone . Follow the gas supplier's instruction . • If you cannot reach your gas supplier , call the fire department . - - Installation and service must be per - formed by a qualified installer , service agency or the gas supplier . WILLIAMS Furnace Co . , 225 Acacia St . , Colton , CA 92324 PRINTED IN USA 4 / 98 P500407
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IMPORTANT TO THE PURCHASER : Keep this warranty and the installation and homeowner's instructions for your future reference . LIMITED WARRANTY The Manufacturer , Williams Furnace Co . , warrants this wall furnace or heater to the original purcheser under the following conditions : LIMITED ONE - YEAR WARRANTY 1 . Any part thereof which proves to be defective in material or workmanship within one year from date of odginal purchase for use will be repaired or replaced at the Manufacturer's option , FOB its factory . 2 . No liability is assumed by the Manufacturer for removal or installation labor costs , nor for freight or delivery cha _ ges . LIMITED EXTENDED WARRANTY 1 . In addition to the above limited one - year warranty on the complete unit , any heat exchanger which bums out or rusts under normal installation , use and service conditions dudng a period of nine years following expiration of the one - year warranty pedod will be exchanged for a like or functionally similar part , FOB Manufacturer's factory . 2 . No liability is assumed by the Manufacturer for removal or installation labor costs , nor for freight or delivery charges . LIMITATIONS I . THIS LIMITED WARRANTY IS THE ONLY WARRANTY MADE BY THE MANUFACTURER . IMPLIED WARRANTIES OF MERCHANTABILITY OR FITNESS FOR ANY PARTICULAR PURPOSE ARE LIMITED TO THE SAME ONE YEAR TERM AS THIS EXPRESS WARRANTY . UNDER NO CIRCUMSTANCES SHALL THE MANUFACTURER BE LIABLE FOR INCIDENTAL , CONSEQUENTIAL , SPECIAL OR CONTINGENT DAMAGES OR EXPENSES ARISING DIRECTLY OR INDIRECTLY FROM ANY DEFECT IN THE I _ RODUCT OR ANY COMPONENT OR FROM THE USE THEREOF . THE REMEDIES SET FORTH HEREIN ARE THE EXCLUSIVE REMEDIES AVAILABLE TO THE USER AND ARE IN LIEU OF ALL OTHER REMEDIES . Some states do not allow limitations on how long an implied warranty lasts , and some states do not allow the exclusion or limitation of incidental or consequential damages , so the above limitations or exclusions may not apply to you . 2 . This warranty does not include any charge for labor or installation . 3 . This warranty does not extend to painted surfaces nor to damage or defects resulting from accident , alteratico , misuse or abuse , or improper installation . 4 . This warranty does not cover claims which do not involve defective workmanship or materials . DUTIES OF THE CONSUMER 1 . The heating equipment must be installed by a qualified installer end operated in accordance with the installation end homeowner's instructions furnished with the equipment . 2 . Any travel , diagnostic costs , service labor , and labor to repair the defective unit will be the responsibility of the owner . 3 . A bill of sale , cancelled check , payment record or permit should be kept to verity purchase date to establish the warranty pedod . 4 . Have the installer enter the requested information in the space below . GENERAL 1 . The Manufact uror neither essumes nor aut hodzes any pereon to essoma for it any cther obligation or liability In connantion with said equipmect . 2 . Service under this warranty should be obtained by contacting your dealer . Provide the dealer with the modeq number , sodal number and pur - chase date verification . 3 . If , within a reasonable time after contacting your dealer , satisfactory service has not been received , contact : Customer Service Department , 225 Acacia St . , Colton , CA 92324 , for assistance . 4 . THIS WARRANTY GIVES YOU SPECIFIC LEGAL RIGHTS , AND YOU MAY ALSO HAVE OTHER RIGHTS WHICH VARY FROM STATE TO STATE . INSTALLATION INFORMATION Model No . Serial No . Odg . Purchaser . Address City and State . Zip Dealer Address . City and State . Zip Installation date Signed by ( Dealer or authorized representative who certifies that this appliance has been installed in accordance with Manufacturer's instructions and local codes . ) - - 2 - -
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A Word From The Manufacturer Dear Customer , Toset up our furnace assembly procedures , several hundred quality assurance , safety audit and design performance tests have been conducted according to the standards provided by the American National Standards Institute , the Depart - ment of Energy and our certification agency - - the American Gas Association Laboratories . This was done to assure you of receiving the best value and most reliable appliance of its type available today . We are confident that your Williams furnace can provide you years of low cost , efficient , heating comfort . Thank you for purchasing a Williams furnace . Sincerely , Employees of Williams Furnace Company Introduction Please read our instructions before you install and use your heater . This will help you obtain the full value from this heater . It could help you avoid needless service costs , if the answer to the problem is found within this instruction manual . Basic Description Always consult your local heating or plumbing inspec - The heat exchanger is built of heavy gauge steel treat - tor , building department or gas utility company ed for corrosion resistance . The heater cabinet is also regarding regulations , codes or ordinances which constructed of heavy gauge steel and has an enamel apply to the installation of a vented room heater . paint finish . No electric power is required unless furnace is The heater controls are located behind a access door equipped with an optional blower accessory . on the side of the heater . All models are equipped with AGA listed gas valves and pilots . The efficiency rating of this appliance is a product ther - mal efficiency rating determined under continuous NOTE , ALL MODELS : operating conditions and was determined independent of any installed system . This appliance is equipped with a vent safety shutoff system , designed to protect against improper venting Warmed air is discharged into the room in which the of combustion products . Operation of this room heater is located . heater when not connected to a properly installed and maintained venting system or tampering with the vent The heater contains a single multi - slot gas burner . safety shutoff system can result in carbon monoxide ( CO ) poisoning and possible death . Combustion air is drawn in from the room where the heater is located and is vented out of the heater verti - cally through vent piping to a roof vent top . ( Vent equipment is not supplied with heater ) . Helpful Installation Information American National Standard Z223 . 1 or current edition The following booklets will help you in making the installation : " National Fuel Gas Code : ' ANSIINFPA 70 , or current edition " National Electrical Obtain from - - Amedcan National Standards Institute , Inc . , Code : ' In Canada : CSA C22 . 1 Canadian Electrical 1430 Broadway , New York , N . Y . 10018 . In Canada : CAN / Code . CGA B149 . - - 3 - -
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Safety Rules WARNING . umn . The maximum inlet gas supply pressure is 13 " water column . READ THESE RULES AND THE INSTRUCTIONS CAREFULLY . FAILURE TO FOLLOW THESE 7 . ANY SAFETY SCREEN , GUARD OR PARTS RE - RULES AND INSTRUCTIONS COULD CAUSE A MOVED FOR SERVICING FROM THIS APPLIANCE MALFUNCTION OF THE FURNACE . THIS COULD MUST BE REPLACED PRIOR TO OPERATING THE RESULT IN DEATH , SERIOUS BODILY INJURY , APPLIANCE TO AVOID PROPERTY DAMAGE , BOD - AND / OR PROPERTY DAMAGE . ILY INJURY OR DEATH . 8 . INSTALL the heater vent directly to the outdoors , so INSTALLATION MUST CONFORM TO LOCAL CODES . IN that harmful gases will not collect inside the building . THE ABSENCE OF LOCAL CODES , INSTALLATIONMUST Followthe venting instructionsfor your type of installa - CONFORM WITH THE NATIONAL FUEL GAS CODE , ANSI tion exactly . Use only the type and size of vent pipe Z223 . 1 . THE APPLIANCE , WHEN INSTALLED , MUST BE and fittings specified . ELECTRICALLY CONNECTED AND GROUNDED IN 9 . BE SURE to provide for adequate combustion and ACCORDANCE WITH LOCAL CODES OR , IN THE ventilation air . See page 7 . The flow of this air to the ABSENCE OF LOCAL CODES , WITH THE CURRENT heater must not be blocked . NATIONAL ELECTRICAL CODE ANSI / NFPA NO . 70 . 10 . NEVER test for gas leaks with an open flame . Llse IN CANADA soap suds to check all gas connections . This will avoid the possibility of fire or explosion . 1 . INSTALLATION MUST CONFORM TO LOCAL 11 . ALLOW heater to cool before servicing . Always shut CODES OR , IN THE ABSENCE OF LOCAL off electricity and gas to heater when working on it . CODES , THE CURRENT CAN / CGA B149 IN - This will prevent any electrical shocks or burns . STALLATION CODE . 12 . DUE TO HIGH TEMPERATURES , locate the heater 2 . THE APPLIANCE , WHEN INSTALLED , MUST BE out of traffic and away from furniture and draperies . ELECTRICALLY CONNECTED AND GROUND - ED IN ACCORDANCE WITH LOCAL CODES OR , 13 . ALERT children and adults to the hazards of high sur - IN THE ABSENCE OF LOCAL CODES , WITH face temperature and to keep away to avoid burns or THE CURRENT CSA C22 . 1 CANADIAN ELEC - clothing ignition . TRICAL CODE . 14 . CAREFULLY supervise young children when they are 3 . REFERENCE IS MADE IN THIS MANUAL in the same room with the heater . REGARDING GAS TYPE AS L . P . G . BE ADVISED THAT L . RG . IS NOT AVAILABLE IN CANADA , 15 . DO NOT place clothing or other flammable material REFER TO PROPANE / L . R GAS . on or near heater . 16 . INSTALLATION and REPAIR must be done by a quali - fied service person . The appliance should be inspected 1 . USE ONLY MANUFACTURER'S REPLACEMENT before use and at least annually by a professionalserv - PARTS . USE OF ANY OTHER PARTS COULD CAUSE ice person . More frequent cleaning may be required INJURY OR DEATH . due to excessive lint on the material , etc . It is im - 2 , DO NOT install this heater in an alcove . perative that control compartments , burners and cir - culating air passages be kept clean . Failure to keep 3 _ DO NOT installthese heaters in a travel trailer , recrea - burner - control compartment and other parts of heater tional vehicle or mobile home . clean can cause dangerous conditions to develop . MAINTAIN all clearances specified in section which can cause injury and even death . " Locating Room Heater " and " Vent Installation . " 17 . BEFORE INSTALLING optionalblower : T . oavoid electri - . BE SURE heater is for type of gas to be used . Check cal shock , turn off electrical circuitsthat pass through the rating plate by the gas valve in the lower cabinet . the wall where you are going to install the heater . Do not change it to use other gases . Unsafe opera - 18 . BE AWARE of good safety practices by wearing per - tion could result and could cause bodily injury and sonal protective equipment such as gloves and safe - death . ty glasses to avoid being injured by sharp metal edges . For Natural gas , the minimum inlet gas supply in or around heater and while cutting or drilling holes pressure for the purpose of input adjustment is 5 " col - in wood and / or sheet metal . umn . The maximum inlet gas supply pressure is 7 " 19 . CAUTION : Label all wires prior to disconnectionwhen water column . servicing controls . Wiring errors can cause improper FOr L . R gas , the minimum inlet gas supply pressure and dangerous operation . Verify proper operation after for the purpose of input adjustment is 11 " water col - servicing . WARNING DO NOT USE THIS HEATER IF ANY PART HAS BEEN UNDER WATER . IMMEDIATELY CALL A QUALIFIED SERVICE TECHNICIAN TO INSPECT THE HEATER AND TO REPLACE ANY PART OF THE CONTROL SYSTEM I I AND ANY GAS CONTROL WHICH HAS BEEN UNDER WATER . - - - 4 - - -
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LOCATING THE HEATER - - MINIMUM FRESH AIR OPENING IS 1 SQUARE INCH PER 1,000 BTUIHR . WARNING : Gas burning appliances require air for combusion and proper venting . Minimum fresh air opening of 1square inch per 1000 BTU per hour input rating must be provided for ventilation . EXAMPLE : A 30,000 BTU per hour input unit requires the equivalent of a 30 inch wide window be open 1 inch for safe operation . A . In choosing the location for the heater , the following factors should be considered : 1 . Convenience to gas supply . 2 . Arrangement of rooms or area to be heated . 3 . Probable location of funiture . 4 . General appearance . 5 . Safe clearance from anything that could catch fire . B . Locate the heater centrally in the area which it is to heat . The ideal location is at the source of cold air , which is an outside wall . If the heater is on an outside wall , the cold air will be warmed before it moves through the room . C . Place the heater where the air will circulate freely throughout the area to be heated . If one heater is intended to heat the entire house , it is adviseable to consider the installation of grilles immediately below the ceilings to permit circulation of hot air from room to room . Return air grilles are also desirable . D , Be certain the heater is placed where the air is free to cimulate around it . Never install the heater in a wall recess . The minimum clearance required to any wall or object can be found on the rating plate located inside the furnace control door on the base plate . We recommend a 24 - inch min . clearance from the burner access door for the ease of lighting and for observation of pilot and burner flames . E . NOTE : Heater must be installed so that drafthood is in the same pressure zone as the combustion air . F . The heater may be placed directly on wood floors . Heavy pile or shag rugs may restrict normal air flow . REQUIRED CLEARANCE Some floor coverings discolor easily from even low heat . To assure safe operation , a floorboardextending MODEL " A " " B " " C " the full depth and width of the appliance must be SIDE CEIUNG REAR placed under the heater . 200 SERIES 2 " MIN . 22 " MIN . 3 " MIN . G . Do not place heater where curtains , draperies , or any 350 SERIES 6 " MIN . 57 " MIN . 6 " MIN . other material may come into contact with any part ! 500 SERIES 6 " MIN . 57 " MIN . 6 " MIN . of the heater . 650 SERIES 6 " MIN . 57 " MIN . 6 " MIN . GAS CONTROLS = A . All models are regulated on Natural and L . R gases . The regulator is built into the gas control valve . OBSL = ' RVA'nOONF PILOTAND BURNER FLAMES . B . All models are equipped with a 100 % pilotsafety shut - off and a vent safety shut - off system . C . CAUTION : Do not connect 115V electrical service line to gas control valve or wall thermostat . GAS SUPPLY For Natural gas , the minimum inlet gas supply pressure for the purpose of input adjustment is 5 " water column . o " \ The maximum inlet gas supply pressure is 7 " water column . For L . R gas , the minimum inlet gas supply pressure for FRONT VIEW the purpose of input adjustment is 11 " water column . The maximum inlet gas supply pressure is 13 " water column . Gas pressures and input to the burners must not exceed the rated input and pressure shown on the rating plate . On Natural Gas the manifold pressure should be 4 inches water column . The manifoldpressure , shouldbe 10.5 inches water column for L . P . Gas . Orifice change may be required to suit gas supplied . Check with your WILLIAMS service department . FOr heater located at elevations between sea level and 2000 feet , the measured input must not be greater than the input shown on the rating plate of the heater . For eleva - tions above 2000 feet , the measured input must not ex - ceed the input of the rating place reduced by 4 percent Fig . 1 for each 1000 feet that the heater is above sea level . - - 5 - -
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PIPING THE GAS TO THE HEATER State and local authorities have established codes regulating the installation of gas burning equipment . Consult your gas supplier or gas company for complete information . In the absence of local codes , all aspects of the installation must comply with the national fuel gas coda ANSI Z223 . 1 . In Canada : Follow CAN / CGA - B149 . 1 ( 2 ) Canadian Standard . A . Use 1 / 2 - inchpipe or semi - rigid tubing for natural and liquefied petroleum gases . DO NOT USE FLEXIBLE HOSE . Appliance connectors of corrugated metal tubing and fittings that are listed by a nationally recognized testing agen - cy may be used if accepted by the local code authorities . FOLLOW THE MANUFACTURERS INSTALLATION INSTRUCTIONS . This type of connector may only be installed in the room where the heater is located . B . A manual shut - off valve and union must be installed inthe gas supply line just ahead of the connection to the heater . The manual valve must include a lie - inch NPT plugged tapping accessable for connection of a test gauge . C . Unions in the gas supply lines shall be of the ground joint type . Compounds used on threaded pipe joints must be resistant to the action of liquefied petroleum gases . WARNING : WHEN CONNECTING FIELD PIPING , USE A SECOND WRENCH TO KEEP THE HEATER VALVE FROM TURNING . SUPPORT FIELD PIPING PROPERLY , STRESS AND OVERTIGHTENING COULD DAMAGE THE GAS VALVE AND RESULT IN DANGEROUS GAS LEAKS WHICH CAN CAUSE DANGEROUS CONDITIONS INCLUDING PROPER - TY DAMAGE , BODILY INJURY , AND EVEN DEATH . D . A dripleg Fig . 2 should be installed to constitute a trap to catch any condensate that may be in the gas . The dripleg should be readily accessible for cleaning . E . The heater must be disconnected from the gas supply system and from the heater individual shut - off valve when the system is tested at a pressure in excess of 1 / 2 PSIG . F . IMPORTANT . " CHECK ALL FACTORY AND FIELD PIPE JOINTS FOR GAS LEAKS BEFORE AND AFTER LIGHTING THE HEATER . USE A SOAP SOLUTION . NEVER USE A MATCH OR OPEN FLAME . CORRECT ANY LEAK , NO MA'I - rER HOW SMALL . G . IMPORTANT _ PIPING SUPPLY SHALL BE SUPPORTED TO PREVENT SAGGING DAMAGE TO CONTROLS AND HAZARDOUS GAS LEAKS . TO PREVENT FREEZING WHERE THE SUPPLY PIPE IS EXPOSED TO COLD AIR , WRAP THE PIPE OR RUN IT UNDERGROUND . IMPORTANT DROP All piping must comply with local codes and ordinances I 1 PIPED ( ; _ OUN0 JOINT I I GAS u . loN or with the National Fuel Gas Code ( ANSI Z223 . 1 NFPA No . 54 ) , whichever applies . ( In Canada : CAN / CGA B149 . ) PROPER PIPING PR _ rlC _ IMP ( RF [ CT CONTRO L USI _ MOO ( RAT ( AMOUNT OF DOPE _ PIPED _ UAL SHUt 0f _ SUPPLY THR £ AD P _ P _ R _ T L _ N _ T _ L _ V _ _ _ O TH _ £ AD $ _ R _ _ _ INI _ UM _ 1 _ I7RI6 _ Pu _ G _ Jm , n ini _ NIPPLE GAS tEE TOP • ] , _ I ; 6 Z n . _ , l Nippt E s LEFT ' i ( , ° 2 SIDE ' I I I _ < . cAP MINlP , ¢ UM , _ ALt 81 [ NO _ 4 _ Ml _ Zat , i C IUHlld G S . OULD 0 [ SMOOIH / _ CAUIION SMUT OC , rt _ . MA _ . _ . _ _ UOI _ . = V BCFOR _ N ( MOVII _ G ( NO CAP rO P _ EVI _ N _ Ga _ fROM _ _ LL _ tlC ! . [ WORK Ag _ A _ T FON GAS L _ AK 350 MODEL SERIES SHOWN Fig . 2 Rg . 3 - - - 6 - -
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WARNING . WARNING DANGER OF ILLNESS DANGER OF PROPERTY DAMAGE , BODILY INJURY OR DEATH BODILY INJURY OR DEATH EVEN WHEN HOUSE MEETS REQUIREMENTS THE FURNACE AND ANY OTHER FUEL BURNING FOR UNCONVINED SPACE WITH ADEQUATE AIR APPLIANCE MUST BE PROVIDED WITH ENOUGH INFILTRATION IT IS RECOMMENDED THAT A FRESH AIR FOR PROPER COMBUSTION AND VENTILATION OF FLUE GASES . MOST HOMES FRESH AIR INTAKE BE INSTALLED TO LESSEN THE POSSIBLE DANGERS FROM ANY FUTURE WILL REQUIRE THAT OUTSIDE AIR BE SUPPLIED CHANGES ON THE HOME . INTO THE FURNACE AREA . VENTING WARNING : This heater is equipped with a vent safety shut - off system to protect against improper venting of its combus - tion products . Tampering with or removal of this control will void the limited warranty and can result in carbon monoxide ( CO ) poisoning and possible death . A . An effective flue is necessary to carry off water vapor , carbon monoxide ( CO ) , carbon dioxide ( CO2 ) , and other products of combustion . For proper venting , follow the following basic rules for gravity venting , which are : 1 . Keep the flue gases hot . 2 . Follow the vent manufacturer's installation instructions . 3 . Select the proper vent size . 4 . Provide constant fresh air replacement . S . For new installation , it is recommended that a Type " B " vent in accordance with its listing be used . A Type " B " vent is one made of non - combustible , corrosion resistant material of sufficient thickness and cross sectional area and heat insulating quality to avoid excess temperature on adjacent combustible material and certified by a na - tionally recognized testing agency . Existing brick flues should be lined to provide an effective vent . Brick chimneys , even in good repair , may be too large and will not provide sufficient draft to effectively vent a heater . C . Use vent pipe of the same size as the outlet on back of heater . In no case should a smaller vent be used . D . Avoid a horizontal run of vent pipe whenever possible . When a horizontal run is necessary , the pipe must pitch upward at least 1 / 4 " to the foot , and must be supported securely and joints fastened by sheet metal screws or rivets . Under no circumstances should the vent run downhill . E . Never put a damper or barometric draft control in a gas vent pipe . F . Never end a vent in an open attic or run vent through a wall to the outside without extending it upward above the roof . G . Always terminate vent with an approved cowl . H . WARNING : ALWAYS SECURE VENT PIPE TO OUTLET ON BACK OF HEATER WITH A SHEET METAL SCREW . IMPORTANT : Inspect venting system prior to each heating season . WARNING DANGER OF ILLNESS , BODILY INJURY OR DEATH DRAFTHOOD SPILLAGE WITH UNOBSTRUCTED VENTS , INDICATES THAT ADDITIONAL AIR MUST BE BROUGHT INTO THE STRUCTURE FROM THE OUTSIDE . KEEP A WINDOW OPEN ( MINIMUM 2 INCHES ) NEAR THE APPLIANCE UNTIL A PER - MANENT AIR DUCT IS INSTALLED . IN ANY AREA WHERE OXYGEN IS IN USE . I WARNING : DANGER OF PROPERTY DAMAGE , BODILY INJURY OR LOSS OF LIFE . DO NOT INSTALL FURNACE - - 7 - -
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Thermostat Installation MOUNTING THE THERMOSTAT Models with the last two digits " 11 " ( or ) " 12 " utilize a built - in thermostat control system operated by a heat sensing 1 . To remove thermostat cover , squeeze both sides and bulb located in the burner compartment . lift . IMPORTANT 2 . Connect thermostat wires to the thermal screws on the back of thermostat base . ting tubing . I andle the bulb with care . Do not kink the connec - , Push any excess wire back through hole in wall and plug hole with insulation to prevent drafts from affect - ing thermostat operation . Models with the last two digits " 21 " ( or ) " 22 " are operated by a millivolt type thermostat . Current to the thermostat 4 . Be sure to level thermostat for best appearance , fasten is supplied by the pilot generator . Anticipation settings are thermostat base to wall through mounting holes with not required . screws provided . 1 . If an old thermostat is being replaced and is in a 5 . Replace the thermostat cover . satisfactory location and the wiring appears to be in good condition , use existing wiring . If in doubt , use new CAUTION wire . Do not run wire in any location where it might be 2 . If a new location is chosen or if this is a new installa - damaged . Avoid slicing thermostat wire unless the tion , thermostat cable must first be run to the location spliced wires are properly cleaned , soldered and selected . All wiring must agree with local codes and taped . ordinances . These instructions cover bringing the wire down from the attic but it can be run from a basement NOTE or crawl space using similar methods . 3 . Before drilling hole in wall at selected location , drive Use # 18 Ga . wire as supplied for maximum length of 20 feet . If longer length is needed , use # 16 Ga . for maximum a small finishing nail through the ceiling in the corner length of 25 feet . of the wall and ceiling above the thermostat location . Pull the nail out and push a small stiff wire through the Refer to installation instructions packed in the thermostat hole so it can be found in the attic . Drill a 1 / 2 - inchhole carton if you have any doubt about the above procedures . through the ceiling wall plate . Connect thermostat wire , previously run to burner com - 4 . Probe for obstructions in the partition . Then drill a partment from thermostat , to control valve as shown in 1 / 2 - inch hole through wall at selected location for Fig . 4 . thermostat . CAUTION 5 . From the attic , feed the thermostat cable or a stiff wire LABEL ALL WIRES PRIOR TO DISCONNECTION through wall until even with thermostat location . WHEN SERVICING CONTROLS . WIRING ERRORS 6 . Snag thermostat cable through hole and pull cable CAN CAUSE IMPROPER AND DANGEROUS OP - through hole in wall so that 6 inches of cable protrubes . ERATION . VERIFY PROPER OPERATION AFTER SERVICING . 7 . Route cable to heater . THERMOSTAT GENERATOR J GENERATOR THERMOSTAT LIMIT SWITCH € - - - WHITE BLUE KNOB GREEN KNOll WILLIAMS WILLIAMS P295000A ( OR } LIMIT SWITCH P172100A ( OR ) P295001A P172200A Fig . 4 - - 8 - -
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Start - Up Procedure WARNING CHECK THE GAS INPUT ( NATURAL GAS ONLY ) DANGER OF PROPERTY DAMAGE , WARNING BODILY INJURY OR DEATH . NATURAL GAB HEATING VALUE ( BTU PER CUBIC LIQUEFIED PETROLEUM L . P . GAS IS HEAVIER FOOT ) CAN VARY SIGNIFICANTLY , THEREFORE , THAN AIR AND IT WILL SEI - rLE IN ANY LOW IT IS THE INSTALLER'S RESPONSIBILITY TO BEE AREA , INCLUDING OPEN DEPRESSIONS AND IT THAT BTU INPUT TO THE FURNACE IS ADJUSTED WILL REMAIN THERE UNLESS AREA IS PROPERLY . FAILURE TO DO SO COULD CAUSE VENTILATED . HEAT EXCHANGER FAILURE , ASPHYXIATION , FIRE NEVER ATTEMPT STARTUP OF UNIT BEFORE OR EXPLOSION , RESULTING IN DAMAGE , BODILY THOROUGHLY VENTILATING AREA . INJURY OR DEATH . REFER TO THE NATURAL FUEL GAS CODE ( NFPA - 54 ) TO BE SURE THE FUR - NACE IS BURNING FUEL AT THE PROPER RATE . Check the heater operation as outlined in the following in - structions . If any sparking , odors or unusual noises are Underfiring could cause inadequate heat , excessive con - encountered , shut off electric power immediately . Recheck densation or ignition problems . Overfiring could cause for wiring errors , or obstructions in or near fan motor ( if sooting flame impingement or overheating of heat ex - equipped ) . changer . Before starting natural gas input check , obtain heating CHECK GASINPUT AND PRESSURES value of gas ( BTU per cubic foot ) at standard conditions For heater located at elevations between sea level and from your local supplier . This factor is used in " Check the 2000 feet , the measured input must not be greater than Gas Input " section and procedure . the input shown on the rating plate of the furnace . For To measure the input using the gas meter , proceed as elevations above 2000 feet , the measured input must not follows : exceed the input of the rating plate reduced by 4 percent for each 1000 feet that the heater is above sea level . Step 1 : Turnoff gas supply to all other appliances except the furnace . Gas supply pressure and manifold pressure with the Step 2 : With the heater operating , time the smallest dial burner operating must also be as specified on the rating on the meter for one complete revolution . If this plate . is a 2 cubic foot dial , divide the seconds by 2 ; if it is a 1 cubic foot dial , use the time in seconds lype of Gas Manifold Pressure , In . W . C . as is . ( 3,600 = Sec . Per Hr . ) This gives the Natural 4 seconds per cubic foot of gas being delivered to L . R 10.5 the heater . Step 3 : Assuming natural gas with a heating value of Rated input will be obtained on 2500 Btu propane at 10.5 1000 Btu per cubic foot and 34 seconds per cubic inch manifold pressure and factory - sized orifices . If LP gas foot as determined by step ( 2 ) , then : having a different heating value is supplied , orifices must Input : 1,000 X 3,600 + 34 = 106000 Btu Per Hour be changed by a qualified service technician before the This measured input must not be greater than the heater is operated . input indicated on the rating plate of the heater . CHECK THE MANIFOLD GAS PRESSURE Step 4 : Relight all other appliances turned off in step 1 above . Be sure all pilot burners are operating . A tapped opening is provided in the gas valve to facilitate measuring the manifold gas pressure . A " U Tube " CHECK PILOTBURNER manometer having a scale range from 0 to 12 inches of water should be used for this measurement . The manifold The pilotflame must envelop 1 / 2 to 5 / 8 inch of thermocou - pie or generator . See Fig . 5 . Pilot flame is preset at the pressure must be measured with the burner and pilot factory , so ordinarily does not require field adjustment . If operating . Any major changes in the flow must be made adjustment is needed , see page 14 . by changing the size of the bumer orifice . Check with your WILLIAMS service department for proper orifice sizing . CHECK THERMOSTAT J _ _ 1 / 2 TO5 / s Check thermostat operation . When set above temperature , _ - - RLOT shown on the thermostat , the main burner should light . Make certain the thermostat turns off the heater when room temperature reaches the selected setting and starts the heater when room temperature falls a few degrees . FRONT _ EW Fig . 5 - - 9 - - -
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FOR YOUR SAFETY , READ BEFORE LIGHTING WILLIAMS GAS CONTROL VALVE P322051 ( OR ) P322052 ( OR ) P500419 ( OR ) P5004 _ , 0 r WARNING : If you do not follow these instructions exactly , a fire or explosion I may result causing property damage , personal injury or loss of life , I A . This appliance has a pilot which must be lighted by • If you cannot reach your gas supplier , call the fire hand . When lighting the pilot , follow these instructions department . exactly . C , Use only your hand to push in or turn the gas control B . BEFORE LIGHTING smell around the appliance ares knob . Never use tools . If the knob will not push in or for gas . Be sure to smell next to the floor because some tom by hand , don't try to repair it , call € qualified serv - gas Is heavier than air and will settle on the floor . ice technician . Force or attempted repair may result In a flro or explosion . WHAT TO DO IF YOU SMELL GAS D . • Do not try to light any appliance . Do not use this appliance If any part has been under • DO not touch any electric switch ; do not use any water , immediately call s qualified service technician to phone In your building . inspect the appliance and to replace any part of the • Immediately cell your gas supplier from s neighbor's control system and any gas control which has been under water . phone . Follow the gas suppller's instructions . OPERATING INSTRUCTIONS 1 . STOP ! Read the sefety information above . 9 . Push In gas control II _ 2 . TOm off all electric power to the appliance ( if applicable ) . knob slightly and turn 3 . Open control access panel . counterclockwise 4 . Tom temperature dial clockwise F _ to " LO ' " to " PILOT . " 10 . Push in control knob all the 5 . Push in gas control knob slightly and turn olookwlee ! - _ to " OFF . " way end hold In . Immediately THERMO - PILOT light the pilot . COUPLE BURNER TEMPERATURE DIAL GAS CONTROL Continue to hold the control knob In for about one ( 1 ) minute after the pilot is lit . Release knob end It will " ' _ @ . _ : / _ - - " _ @ 1 _ @ 1 / KNOB SHOWN pop back up . Pilot should remain lit . If It goes out , " _ ' F / _ \ l F _ ' , _ % ' _ / _ IN OFF repeat sfop $ 5 through 10 . • If knob does not pop up when released , stop and Immediately ceil your service technician or gas supplier . • If the pilot will not stay lit after several tries , turn the gas control knob to " OFF " and call your service NOTE : Knob cannot be turned from " PILOT " to " OFF " technician or gas supplier . unless knob Is pushed in slightly . Do not force . 11 . Close pilot observation door , tighten wingnut ( if equipped ) . 6 . Welt five ( 5 ) minutes to clear out any gas , then smell for Torn gas control knob counterclockwise _ ' _ to " ON ' : gas , including near the floor , if you then smell gas , stopl 12 . Sensing bulb is now activated . Set temperature dial to Follow " B " in the safety Information above . If you don't desired temperature ( 1 - 5 ) . smell gas , go to next step . Close control access panel . 7 . Loosen wlngnut end open the pilot observation door ( if 13 . Torn on all electric power to the appliance equipped ) . 14 . ( if applicable ) . 8 . Find pilot - - follow metal tube from gas control . The pilot is mounted on side of burner . TO TURN OFF GAS TO APPLIANCE 1 . Turn off all electric power to the appliance If serv - 3 . Push In gas control knob slightly and tum clockwise F - _ to " OFR " Do not force . Ice is to be performed ( if applicable ) . 2 . Open control access panel . 4 . Close control access panel . WARNING : DUE TO HIGH SURFACE TEMPERATURES - - KEEP CHILDREN , CLOTHING , FURNITURE OR ANY COMBUSTIBLE MATERIAL AWAY FROM FURNACE . IMPORTANT : KEEP BURNER AND CONTROL COMPARTMENT CLEAN . CONNECTION WIRING DIAGRAM FOR BUILT - IN THERMOSTAT MODELS LZGE _ O - - FACTORY WIRED LOW VOLTAGE SHUT OFF 0E - _ IC _ NOTES : F k _ Y 0F 1 _ 01 _ lU _ . NR [ _ GAS VALVE € [ m'LAC _ US [ O _ y t _ . 4 , _ , IK _ JI , , A'nG1 _ G6 " . C . AW BLACK vm [ oR I _ / JIVAL _ T . FORRDD . - _ Cml _ llo _ us [ NO , 18A _ O m _ lZO mt ATZZ _ TI _ ( : ml - ) BLACK RE ] _ OTE BULB - - 10 - -
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I m . . u , ct . us , . , or , oo . , , i . I • If you cannot reach your gas supplier , call the fire A . This appliance has a pilot which must be lighted by department . hand . When lighting the pilot , follow these instructions exactly . C . Use only your hand to push In or turn the gas control knob . Never use tools . If the knob will not push in or B . BEFORE LIGHTING smell around the appliance area tum by hand , don't try to repair it , ceil n qusiified serv - for gas . Be sure to smell next to the floor because some Ice tochnlcien . Force or attempted repair may result In a gas Is heavier than sir and will settle on the floor . fire or explosion . WHAT TO DO IF YOU SMELL GAS D ° Do not use this appliance if any part has been under • Do not try to light any appllancs . water . Immediately cell n qusliflnd asrvlce tochniclcn to • Do not touch any eieotdc swifch ; do not use any Inspect the appliance and to replace any part of the phone In your building . control systom and any gas control which has been • Immediately cell your gas supplier from s neighbor's under mr . phons . Follow the gas suppiier's Instructions . OPERATING INSTRUCTIONS 8 . " Ibm knob on gas control N 1 . STOP ! Resd . the safety Information above . 2 . Turn off all electric power to the appliance ( if applicable ) . counterclockwlas to " PILOT . " 3 . Open control access panel . 9 . Push In control knob all the 4 . Push In gas control knob slightly and turn clockwlse / - " _ to " OFF . " way and hold in . Immediately TEMPERATURE DIAL light the pilot . THERMO - PILOT COUPLE BURNER Continue to hold the control knob in for about one ( 1 ) KNOB SHOWN minute sitter the pilot Is lit . Release knob and it will pop IN " OFF " back up . Pilot should remain lit . If it goes out , repast steps POSITION 5 through 9 . • If knob does not pep up when released , stop and Immedlntoly cell your service technician or gas supplier . NOTE : Knob cannot be turned from " PILOT " to " OFF " • If the pilot will not stay lit after several tries , turn the gas control knob to " OFF " and cell your service unless knob 18 pushed in slightly . Do not force . technfolnn or gas supplier . 5 . Wait five ( 5 ) minutes to clear out any gas , then smell for 10 . Close pgot olmervation door , tighton wlngn _ ( if equipped ) . gas , Including near the floor . If you then smell gas , sfopi 11 . Turn gas control knob counterclnckwlasl ( _ to " ON " . Follow " B " In the safety Informstlon above . If you don't Burner Is now under control of the thermostatic canning smell gas , go to the next step . element . Tum temperature dial ( numbered 1 through 8 ) 6 . Loosen wlngnot and open the pilot observation door ( It counterclockwise I _ toward 8 to obtain desired equipped ) . temperature . 7 . Find pilot - - follow metal tube from gas control . The pilot is mounted on side of bumer . 12 . Close control socese panel . 13 . " rum on MI electric power to the appliance ( If ppgWlcehlo ) . TO TURN OFF GAS TO APPLIANCE 1 . Tum off ell electric power to the appliance If serv - 3 . Push In gas control knob slightly end turn clockwise _ to " OFF . " Do not force . Ice Is to be performed ( if applicable ) . 4 . Close control access panel . 2 . Open control access panel . WARNING : DUE TO HIGH SURFACE TEMPERATURES - - KEEP CHILDREN , CLOTHING , FURNITURE OR ANY COMBUSTIBLE MATERIAL AWAY FROM FURNACE . IMPORTANT : KEEP BURNER AND CONTROL COMPARTMENT CLEAN . DIAGRAM FOR BUILT - IN THERMOSTAT MODELS CONNECTION WIRING VENT _ I - - I ] ] ' ERMOCOUPLE - - FACTORY _ RED LOWVOLTAG _ NO'W . S : W AHYOF15EO _ NAL _ AS _ PP _ 9 _ IH £ N = RJ / _ ¢ I [ NS " l - % _ UT OFF OE'VIC _ U . [ _ GAS VALVE Ik _ l . A'lION , 1 _ " @ . AWM ¢ ¢ PP £ R I _ CG _ I4 _ ' I ] G _ SIJE NO , 10 A14 _ BLACK R _ OTE BULB _ 11 _
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FOR YOUR SAFETY , READ BEFORE LIGHTING WILLIAMS GAS CONTROL VALVE P172100A & P172200A WARNING : If you do not follow these instructions exactly , a fire or explosion may result causing property damage , personal injury or loss of life . • It you cannot reach your gas supplier , call the fire A . This appliance has a pilot which must be lighted by department . hand . When lighting the pilot , follow these Instructions exactly . C . Use only your hand to push In or turn the gas control knob . Never use tools . If the knob will not push In or B . BEFORE LIGHTING smell around the appliance area turn by hand , don't try to repair It , call e qualified serv - for gas . Be sure to smell next to the floor because some Ice technician . Force or attempted repair may result In a gas Is heavier than air and will settle on the floor . fire or explosion . WHAT TO DO IF YOU SMELL GAS B , Do not use this appliance If any part has been under • Do not try to light any appliance . water . Immediately call a qualified service technician to • Do not touch any electric owltch ; do not use any Inspect the appliance and to replace any part of the phone In your building . control system and any gas control which has been • Immediately call your gas supplier from a neighbor's under water . phone . Follow the gas suppller's Instructions . OPERATING INSTRUCTIONS 1 . STOPI Read the safety information above . 9 . Push In gas control GENERATOR _ 2 . Turn off ell electric power to the appliance ( If applicable ) . knob slightly and turn 3 . Set the thermostat to lowest setting . counterclockwise _ ' _ 4 . Open control access panel . to " PILOT " PILOT 5 . Push In gas control knob slightly and tum 10 . Push In control knob ell the way and BURNER clockwlseF - _ , to " OFF . " hold in . Immediately light the pilot . Continue to hold the control knob In for about one ( 1 ) GAS CONTROL minute after the pilot Is lit . Release knob and it will pop back up . Pilot should remain lit . If It goes out , j KNOB SHOWN repeat steps 5 through 10 . IN " OFF " POSITION • If knob does not pop up when released , stop and Immediately call your service technician or gas supplier . • If the pilot will not stay lit after several tries , turn the gas control knob to " OFF " and call your service NOTE : Knob cannot be turned from " PILOT " to " OFF " technician or gas supplier . unless knob Is pushed in slightly . Do not force . 11 . Close pilot observation door , tighten wlngnut 6 . Walt five ( 5 ) minutes to clear out any gas , then smell for ( if equipped ) . gas , Including near the floor . If you then smell gas , STOPI 12 . Tumgsecontrolknobcountercloukwlse , rF " _ to " ON ' ' . Follow " B ' " In the safety Informstlon above . If you don't 13 . Close control access panel . smell gas , go to the next step . 14 . " rum on ell electric power to the appliance 7 . Loosen wlngnut and open the pilot observation door ( if ( if applicable ) . equipped ) . 8 . Find pilot - - follow metal tube from gas control . The pilot Is 15 . Set thermostat to desired setting . mounted on side of bumer . TO TURN OFF GAS TO APPLIANCE 1 . Set the thermostat to lowest setting . 2 . Turn off all electric power to the appliance if service Is to be performed . 3 . Open control access panel . 4 . From " ON " position , depress and turn gas control knob clockwise F _ to " OFF " position . Do not force . 5 . Close control access panel . WARNING : DUE TO HIGH SURFACE TEMPERATURES - - KEEP CHILDREN , CLOTHING , FURNITURE OR ANY COMBUSTIBLE MATERIAL AWAY FROM FURNACE . IMPORTANT : KEEP BURNER AND CONTROL COMPARTMENT CLEAN . CONNECTION W1RING DIAGRAM FOR WALL THERkiOSTAT MODELS LEGEND - - FACTORY WIRED LOW VOLTAGE ( _ SCR'L " W TERMINAL LOW VOLTAGE NOTE : IF ANY OF 1HE ORIGINAL _ AS SUPPt , RDt _ IIf l } , lEAR = UA , ' MC _ E E _ u _ ONlYt _ 4 / 04 _ qul _ 0 _ . 106 " _ AWM00PP _ W _ 0R I _ LWN . _ T . FOR RB . D - _ RSl ) CONN _ I014S USE NO . 111A _ ames _ 1 _ _ ATt . F . AStOTS ' { C _ n _ - - 12 - -
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WARNING : If you do not follow these instructions exactly , a fire or explosion I may result causing property damage , personal injury or loss of life . I • If you cannot reach your gas supplier , call the fire A . This appliance has a pilot which must be Ughted by department . hand . When lighting the pilot , follow these Instructions exactly . C . Use only your hand to push In or turn the gas control knob . Never use tools . If the knob will not push In or B . BEFORE LIGHTING smell around the appliance area turn by hand , don't try to repair It , call a qualified aerv - for gas . Be sure to smell next to the floor because some Ice technician . Force or attempted repair may result In a gas Is heavier than air end will settle on the floor . fire or explosion . WHAT TO DO IF YOU SMELL GAS B . Do not use this appliance If any part has been under • Do not try to light any appliance . water . Immediately call a qualified service technician to • Do not touch any electric switch ; do not use any Inspect the appliance end to replace any part of the phone In your building . control system end any gas control which has been • Immedlatsiy rail your gas supplier from a neighbor's under water . phone . Follow the gas soppller'a Inxtroctlona . OPERATING INSTRUCTIONS 1 . STOPI Read the safety Information above . 9 . Turn knob on gas control 2 . Bet the thermostat to lowest setting . counterclockwise 3 . Turn off all siectrlc power to the appliance . ( If applicable ) . to " PILOT . " 4 . Remove control access panel . 5 . Push In gas control knob slightly and turn GENERATOR PILOT clockwise F _ to " OFF . " BURNER 10 . Push In control knob all the way end hold In . Immedi - ately light the pilot . . s CONTROL t / _ _ \ _ 1 t " - ' _ ; _ KNOB SHOWN Continue to hold the control knob In for about one ( 1 ) minute after the pÁÁÙtIs lit . Release knob end It will pop ' " OFFPOSITION back up . Pilot should remain lit . If It goes out , repeat steps 5 through 10 . • If knob does not pop up when released , stop and Immedlataty call your service technician or gas supplier . NOTE : Knob cannot be turned from " PILOT " to " OFF " • If the pilot will not stay lit after several tries , turn unless knob Is pushed in slightly . Do not force . the gas control knob to " OFF " and call your service technician or gas supplier . 6 . Walt five ( 5 ) minutes to clear out any gas , then smell for gas , Including near the floor . If you then smell gas , atopl 11 . Close pilot observation door , tighten wlngnut Follow " B " In the safety Information above . If you don't ( If equipped ) . smell gas , go to the next step . 12 . Turn gas control knob counterclockwise _ ' _ to " ON " . 7 . Loosen wlngnut and open the pilot observation door ( If 13 . Close control access panel . equipped ) , 14 . Turn on all electric power to the appliance ( if applicable ) . 8 . Find pnot - - follow metal tube from gas control . The pilot Is mounted on side of burner . 15 . Set thermostat to desired setting . TO TURN OFF GAS TO APPLIANCE 1 . Set the thermostat to lowest setting . 2 . Turn off all electric power to the appliance If service Is to be performed . 3 . Open control access panel . 4 . Push In gas control knob slightly and turn clockwise F _ to " OFF " pesltlon . Do not force . 5 . Close control access panel . WARNING : DUE TO HIGH SURFACE TEMPERATURES m KEEP CHILDREN , CLOTHING , FURNITURE OR ANY COMBUSTIBLE MATERIAL AWAY FROM FURNACE . IMPORTANT : KEEP BURNER AND CONTROL COMPARTMENT CLEAN . CONNECTION WIRING DIAGRAM FOR WALL THERMOSTAT MODELS LEGENO V ENT SAFETTH E _ . . _ TAT _ - ] GENERATOR 1 FACTORY WIRED LOW VOLTAGE SHUT OFF DEVICE1 _ - I I I SCREWTERMINAL LOW VOLTAGE _ 1 _ IF ANY OF 11tE 0RIGINAL Y & _ E AS _ tlrD . I 11tE , N , RJ / gI ( Z MUST E RER , AC _ U ) , SEONLYtlIQ , _ 4 , , 4H GAS INSULA'IIaN10 , 6 " _ Al _ l VALVE _ R £ ORI _ IVN . B _ T . F0RRELD - tfRB ) _ USENO . 18AI _ / BLACK ' lq9 w , ' rm _ ATtL _ r tes , c ( _ w ) . . - - 13 - - -
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How To Care For Your Heater CLEANING BURNER COMPARTMENT CABINET FINISH Clean cabinet with damp rag . Never use abrasive cleaners . Because cold air is attracted to the flame during furnace Cabinets are finished with heat resistant baked enamel operation , a build up of lint from bedding and dust ( etc . ) - - DO NOT refinish with wall paint . in the burner area will occur each heating season . It is necessary to clean this area regularly . Use a vacuumas . REMOVABLE CABINET TOP ( 350 , 500 , & 650 MODEL cleaner with a narrow attachment to reach small are SERIES ONLY ) Be careful in and around the pilot . A change in its adjust - For ease of cleaning , access or replacement of internal ment could be made if struck during cleaning . parts , the top of this heater can be removed by following DANGER these steps : Refer to Fig . 6 . A BUILDUP OF ANY DUST , LINT OR FOREIGN 1 . Remove ( 3 ) Bracketson roar of heater securing Cabinet MATERIAL IN THE PARIMARY AIR OPENING OF Top to Back Plate . THE BURNER CAN INTERFERE WITH THE PRO - 2 . Pull Cabinet Top forward and lift up . Reinstall Cabinet PER AIR GAS MIXTURE AND CAN RESULT IN A Top by reversing the procedures noted above . YELLOW FLAME WHICH CAN PRODUCE CAR - NOTE : Take Special care to engage the ( 6 ) clips located BON MONOXIDE AND SOOT . THIS CONDITION IF on the bottom of the Cabinet Top into the top flange of ALLOWED TO DEVELOP , CAN LEAD TO BODILY heater sides . INJURY INCLUDING DEATH . IT IS IMPERATIVE THAT THE BURNER BE KEPT CLEAN . HEATER AREA Keep the area near the heater clear and free from com - bustible materials , gasoline , and other flammable liquids REMOVABLE CABINE'r TOP ( 350 , 500 , & 650 MODEL SERIES ) and vapors . * NOTS : ( 3 ) BRACKETS - - TO REMOVE CABINET TOP . COMBUSTION AND VENTILATION AIR REMOVE ( 3 ) BR . _ CKETS ON REAR OF HEATER . The combustion and ventilation air supply must not be CABINET PULL CABINET TOP FORWARO TOP - _ AND LIFT UF _ blocked \ Do not put anything in or on the heater cabinet . For better circulation and more effective heating , do not place obstructive furniture closer than four feet to the front of the cabinet or two feet to the side of the cabinet . ANNUAL UPKEEP NEEDED TABS It'is recommended that a qualified service technician per - • form these checks st the beginningof each heating season . CLEANING BLOWER ( if equipped ) SIDE Shut off electricity . Clean any lint or dirt from fan blades , fan motor , and exposed air passages . Use a brush . Fig . 6 VENT SYSTEM PILOT BURNER Light pilot using instructions in OPERATING YOUR FUR - Make sure that no parts of the venting system are block - NACE on pages 10through 13 . Leave thermostat at lowest ed or rusted . Clean or replace before using furnace . setting . Pilot flame should surround 1 / 2 to 5 / 8 inch of the generator or thermocouple tip . Refer to Fig . 5 , page 9 . If flame needs adjusting , do so as follows : ADJUST PILOT BURNER Refer to Fig . 7 . 1 . Remove screw cover over pilot adjusting screw . 2 . Insert small screwdriver . Adjust flame as needed . Turn screw counterclockwise ( _ " _ ) to increase flame , clockwise ( r ' _ ) to decrease . 3 . " rumthermostat to highest setting . Main burner should light quickly and smoothly . Turn thermostatto lowestset - " i ' ting . Main burner should go out . Pilotshould remain lit . 4 . Replace screw cover with gasket over pilot adjusting I • G screw . SIDE VIEW TOP VIEW BURNER CLEANING Flg . 7 Check burner . If cleaning is required , contact a qualified service technician to clean and service burner . NOTE : A properly adjusted bumer with nearly all gases will produce a flame which has clear blue cone having a bluleh . red or bluish - violet outer mantle . In the case of PURE BUTANE GAS , a very slightly yellow tip ( Y4 " max - Imum length ) Is usually present . - - 14 - - -
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INSTALLATION & OPERATING INSTRUCTION 2101 BLOWER ACCESSORY ( AVAILABLE ONLY FOR 350 , 500 , & 650 MODEL SERIES ) WARNING NOTE : All electrical work must be conform to your local codes and ordinances or in their absence , with OR DEATH . ] URN OFFElECTRiCALPOWERSUPPLY National Electrical Code , ANSI / NFPA 70 . If AT DISCONNECTSWITCH , FUSEBOX OR SERVICE DANGEROF PROPERTYDAMAGE , BODILYINJURY you are not famnlar with wtdng codes In general , PANEL BEFOREREMOVINGOR WORKINGFAN . havea competentdectrlclando this job . in CANADA CANADIANELECTRICALCODEC22 . 1 . WARNING : This appliance is equipped with a three - prong ( grounding ) plug for / our protection against shock hazard and should be plugged directly into a L ( EXAMPLE I ) ) roperly grounded three - 650 SERIES prong receptacle . 500 SERIES DO NOT CUT OR REMOVE THE PRONG . Oil motor every EXAMPLE 2 ) 6 months with a few drops 350 SERIES of SAE 20 motor oil . A : MOTOR & BLOWER B : GAS VALVE C : CONDUIT D : CONTROL ROD E : CABLE CLAMP F : CORD & PLUG G : CONTROL BOX H : TEMPERATURE DIAL J : BLOWER SPEED SELECT SWITCH K : FAN LIMIT SWITCH L : SENSOR MOUNTING B BRACKET FIG , 1 . A M : SPILL SWITCH N : COUPLING A . BLOWER ACCESSORY KIT INSTALLATION This accessory is installed on heater back and will increase circulation of warm air through heated space . A 115V 60Hz outlet adjacent to the furnace is required , NOTE : WALl THERMOSTAT MODELS ONLY Control Rod ( D ) , Temperature Dial ( H ) , and Coupling ( N ) are not used or supplied with Wall Thermostat Models . Wall Thermostat Models utilize a mlllivolt Thermostat for Temperature Control . For Wall Thermostat Model installations , disregard STEPS 3 and STEP 4 on these instructions . INSTALL AS FOLLOWS : STEP 1 . Choose a location for heater installation near 115v electrical outlet ( within 5 feet to rear of heater . ) STEP 2 . Place motor & blower ( A ) on heater floor , securing with ( 4 ) screws as shown in RG . 1 . Also place control box ( G ) near the top of furnace back , securing with ( 21 screws as shown In RG . 1 . ( NOTE : Install this klt by using the holes in cabinet only . ) STEP 5 . Attach temperature dlal ( H ) to hole free end of control rod ( D ) . Tighten set screw and set assernby aside for now . - - 15 - -
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INSTALLATION & OPERATING INSTRUCTION 21 01 BLOWER ACCESSORY ( con't ) STEP 4 . Remove temperature dial from control valve ( B ) and discard . Install the coupling ( N ) to control valve and secure it by tightening set screw . Slide previously assembled control rod down through control box and insert it into coupling attached to the control valve . Secure rod to couplincj with cotter pin . STEP 5 . Secure cable clamp ( El to the heater , as shown in FIGURE 1 , with screw provided . STEP 6 . ( Refer to RG . 1 page 151 Insert fan sensor switch , attached to fan limit switch ( K ) , into sensor mounting bracket ( L ) as shown in FIG . 1 . See correct bracket location for your model in example 1 and 2 . IMPORTANT : When inserting sensor bulb into mounting bracket be careful not to push bulb compleUy thru mounting bracket , stopping before sensor switch tip is exposed at other end of bracket . When installing sensor switch into mounting . bracket be sure sensor bulb is not touching spill switch connectors ( M ) . B . BLOWER OPERATION I . With heater cold ( allow to cool if heater has been operating ) , insert plug ( F ) into available 115volt wall outlet . 2 . Turn heater on and allow to operate 10 minutes . 3 . Set blower speed select switch ( J ) to either " LO " or " Hi " position to obtain desired air movement . ( Blower accessory will not operate if blower speed select switch is set in " OFF " position . ) 4 . For Built - In type Thermostat Models , turn Temperature Dial ( H ) to desired tamp settings . For Wall type Thermostat Models turn Wall Thermostat Dial to temperature settings . 5 . To turn off blower , set blower speed select switch ( J ) to " OFT " position . WIRING DIAGRAM 21 01 BLOWER ACCESSORY - - CAUTION I L 115VA ¢ _ " I Label all wires prior to dis - I I connection when servicing controls . Wiring errors con cause improper and danger - ous operation . Verify proper operation after servicing . LEGEND ' - - ' HIGH VOLTAGE FIELD . . . . . . HIGH VOLTAGE FACTORY 0 WIRE CONNECTORFOR UNE VOLOTAGE FACTORY WIRING BK - BLACK BL = = BLUE W = = WHITE R - RED G = = GREEN NOTE : IF ANY OF THE ORIGINALWIRE AS SUPPLIEDWITHTHE APPLIANCEMUST BE REPLACED , USE ONLY 18GA , 4 / 64 " INSULATION , 105 " C . AWM COPPERWIRE OR EQUNALENT . FOR FIELD WIREDCONNE : Cl ] ONSUSE NO . 18 AWG WIRES RA'I ' _ D FOR AT LEAST 105 " C ( 991 " _ - - 16 - -
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INSTALLATION & OPERATING INSTRUCTION 2101 - BLOWER ACCESSORY - REPLACEMENT PARTS - ( 350 , 500 , & : 650 MODEL SERIES ONLY ) 13 17 0 2 3 NO . _ . _ ITEMS 5,6,7 , & 16 ARE NOT SUPPUED OR REQUIRED YI , IH WAll TYPE THERMOSTAT MODELS - REPLACEMENT PARTS LIST - ( USE ONLY MANUFACTURES AUTHORIZED PARTS ) ITEM ITEM PART NO . DESCRIPTION PART NO . DESCRIPTION NO . NO . 11 1 P500263 FAN UMIT SWITCH P500250 ASSEMBLY , MOTOR K7003 - 6087 12 ( 000062 BASE , CONTROL BOX 2 PLATE , MOTOR MTG . 3 P500137 BLOWER WHEEL 13 P065800 SCREW , # 10 X 1 / 2 K5150 - 6029 14 4 ASSY , BLOWER HOUSING K000061 WRAPAROUNDCON'IROL BOX SEE P _ _ 5 CONTROL ROD 15 P320911A SPEED SELECT SWITCH 18 SEE PAGE 21 6 P500125 COTTER PIN 16 rr _ = 4 TEMPERATURE DIAL P500026 7 GROMMET , WHITE P50014 , 5 SET SCREW , BOX CON . 17 8 CORD & : PLUG P500156 K000143 CABLE CLAMP 18 P500158 9 BUSHING - STRAIN PARTOF FURNACE SENSOR MOUN1 ] NG BRACKET 19 P097500 ! SCREW , _ t _ B - 32 X 3 / 8 20 PARTOF FUB _ ACESCREW , _ X 3 / 8 S . M . 11o NO'W . : Screws , bolts end woshers ore _ endla'd hll , ' dware Rims end moy be purchosed locally , - - 17 - -
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WILLIAMS GAS FIRED ROOM HEATER REPLACEMENT PARTS FOR 20016 MODEL SERIES I • I . j " j " I i I I I I I J FOR PARTS UST SEE PAGE 19 USE ONLY MANUFACTURER'S AUTHORIZED PARTS - - 18 - - -
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REPLACEMENT PARTS FOR MODELS 2001611 2001612 2001621 2001622 ! KE ' _ DESCRIPTION 2001611 2001612 2001621 2001622 NO . 1 WRAPPER ASSEMBLY K000275 K000275 K000275 K000275 2 DRAFT DIVERTER ASSY . K000274 K000274 K000274 K000274 COMBUSTION CHAMBER 3 KOOO27g K000279 K000279 K000279 ASSEMBLY 4 BASE PLATE K000265 K000265 K000265 K000265 5 VALVE BRACKET K000266 K000266 K000266 K000266 6 CONTROL VALVE P322052 P322051 P172200A P172100A 7 BURNER ASSEMBLY K000301 K000301 K000301 K000301 8 ORIRCE ADAPTER P500393 P500393 P500393 P500393 9 BURNER ORIFICE P090568 P090547 P090568 P090547 PILOT NAT . P500019 10 PILOT L . P . G . P500020 PILOT NAT . P322274 IOA PILOT LP . G . P322275 11 THERMOCOUPLE P322391 P322391 12 ELECTRODE P322392 P322392 P322276 P322276 13 IGNITER BRACKET 7A189 7A189 7A189 7A189 14 . VENT UMIT CONTROL P500406 P500406 P500406 P500406 15 THERMOSTAT P322016 P322016 16 WIRE ASSEMBLY P500409 P500409 P500409 P500409 17 MANUAL SPARK IGNITOR P285500 P285500 P285500 P285500 FOR PARTS ILLUSTRATION , SEE PAGE 18 NOTF . _ Screws , bolts and washers are standard hardware Items and may be purchased locally - - 19 - -
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WILLIAMS GAS FIRED ROOM HEATER REPLACEMENT PARTS 350 , 500 , & 650 MODEL SERIES FOR PARTS LISTING ( ENCLOSED CONSOLES ) SEE PAGE 21 ( OR ) 22 USE ONLY MANUFACTURERS . / _ - . , . _ NOTE : AUTHORIZED PARTS _ _ ITEMS 24 AND 18 ARI _ NOT USED OR SUPPLIED WITH WALL THERMOSTAT MODELS > _ 2o - -
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ENCLOSED CONSOLES REPLACEMENT PARTS FOR BUILT - IN THERMOSTAT MODELS 3501512 3501511 5001512 5001511 6501512 6501511 3501912 3501911 5001912 5001911 6501912 6501911 < EY DF _ . . SCRIP'IION 3501512 3501511 5001512 5001511 6501512 165015111 _ 10 . 3501912 3501911 5001912 5001911 6501912 65019 1 PANEL SIDE ( R . H . ) K000204 K000204 - K000205 KC00205 K000206 K000206 2 NOT USED ( OR PROVIDED ) , . 3 INLET DUCT ' K7000 . - 6022 < 7000 - 6022 K7000 - - 6022 K7000 - 6022 K7000 - 6022 K7000 - 6022 # BoI " rOM LOUVER ASSY . iK000182 - 1 K000182 - 1 K000182 - 2 K000182 - 2 K000182 - 3 K000182 - 3 5 CENTER PANEL K000220 K000220 K000221 K000221 K000222 K000222 6 BO'I'roM . CABINET KSOiX ) - 6003 K5000 - - 6003 K5000 - 6OO4 . K5000 - 6004 KSOOO . - 601gK5000 . - 6019 7 PANEL SIDE ( LH . ) K000207 K000207 K000208 K000208 K000209 K000209 5 WIRE ASSEMBLY P50040g P500409 P500416 P5004 . 16 P500416 P500416 g TOP LOUVER ASSEMBLY K000181 K000181 K000212 - 1 K000212 - 1 K000212 - 2 K000212 - 2 10 COMBU _ ' _ IO _ N ASSY . t < 000242 K000242 1 < 000240 K000240 K00004 . 5 K00004 . 5 11 STEEL BURNER P50024 . 4 - P50024 . 4 P50024 . 5 P50024 . 5 P500246 P500246 12 CABINET COVER ASSY . K000223 K000223 K000224 K000224 K000225 K000225 13 CONTROL BRACKET K000147 K000147 K000147 K000147 K000147 K000147 14 BURNER ORIFICE P500336 P500351 P500330 P500347 P500327 P500343 15 ORIRDE FIT'nNG P500086 P500056 P500086 P500086 P500086 P500086 16 MANIFOLD PIPE P500087 P500087 P500088 P500088 P500089 P50008g 17 GAS CONTROL VAL _ , / E P5004 . 19 P500420 P5004 . 19 P500420 P500419 P5004 . 20 18 CONTROL ROD K000148 - 1 K000148 - 1 K000148 - 2 K000148 - 2 K000148 - 2 K000148 - 2 10 PILOT TUBE P012000 P012000 PO12000 P012000 PO12000 P012000 20 I GAB VALVE HEAT SHIELD KO00080 KO0008O KO00080 KO00080 KO00080 KO0008O I 21 I SHIELD COVER K7m1 - 6030 K7011 - 6030 K7011 - 6031 K ' 7011 - 6031 22 1HERMOCOUPLE P321828 P321825 P321828 P321825 P322391 P322391 23 PILOT - BURNER P500019 P500020 P500019 P500020 P500019 P500020 24 . TEMPERATURE DIAL P500126 P500126 P500126 P500126 P500126 P500126 25 VENT UMIT CONTROL P5004 . 72 P5004 . 72 P5004 , 06 P5004 . 06 P500118 P500118 26 HEAT SHIELD ( REAR ) K7003 - 83 " / 0 K7003 - 6370 K7003 - 6371 K7003 - 6371 K ' / 003 - 6372 K7 ( X ) 3 - 6372 27 BACI ( PLA'I _ K000226 K000226 K000227 K000227 K000228 K000226 28 REAR CORNER BRACE K7003 - 6097 KT ( X ) 3 - - 6097 1 ( 7003 - - 6097 K7003 . - 6097 K7003 - 6097 K7003 - - 60 _ 17 " _ NOT _ , ' 10 _ 1 NOTE : Screws , bolts and washers are standard hardware Items and may be purchased locally FOR PARTS ILLUSTRA110N , SEE PAGE 20 - - 21 - -
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ENCLOSED CONSOLES REPLACEMENT PARTS FOR WALL THERMOSTAT MODELS 3501522 3501521 5001522 5001521 6501522 6501521 3501922 3501921 5001922 5001921 6501922 6501921 KE _ DESCRIP'IION 3501522 3501521 5001522 5001521 6501522 65015211 NO . 3501922 3501921 5001922 5001921 6501922 650192 1 PANEL SIDE ( R . H . ) K000204 K000204 K000205 K000205 K000206 K000206 2 ' THERMOSTAT P322016 P322016 P322016 P322016 P322016 P322016 3 INLET DUCT K " / 000 - . 6022 K7000 . - 6022 K7000 - 6022 K7000 . - 6022 K7000 - 6022 KT ( XX ) - 6022 4 BOTTOM LOUVER ASSY . K000182 - 1 K000182 - 1 K000182 - 2 K000182 - 2 K000182 - 3 K000182 - 3 5 CENTER PANEL K000220 K000220 K000221 K000221 K000222 K000222 6 i Bo'rroM , CABINET K5000 - 6003 K5000 - - 6003 K5000 - 6004 K5000 - 6004 K5000 - 601111 K5000 - - 6019 7 PANEL SIDE ( LH . ) K000207 K000207 K000208 K000208 K000209 KO0020g 8 _ RE AS _ BLY P500409 P500409 P500416 P500416 P500416 P500416 g TOP LOUVER ASSEMBLY K000181 K000181 K000212 - 1 K000212 - 1 K000212 - 2 K000212 - 2 10 COMBUSTIOCNl _ ASSY . K000242 K000242 K000240 K000240 K000045 K000045 11 STEEL BURNER P50024 . 4 . P500244 P500245 P50024 . , 5 P50024 . 6 P500246 12 CABINET COVER ASSY . K000223 K000223 K000224 K000224 K000225 K000225 13 CONTROL BRACKET K000147 K000147 K000147 K000147 K000147 K000147 14 . BURNER ORIFICE P500336 P500351 P500330 P500347 P500327 P500343 15 O _ RCE FITI'ING P500086 P500086 P500086 P500086 PSOOOB6 P500086 16 MANIFOLD PIPE P500087 P500087 P500088 P500088 P500089 P500089 17 GAS CONTROL VALV1E P172100A P172200A P172100A P172200A P172100A P172200A 18 NOT USED ( OR PROVIDED ) 19 PILOT TUBE P012000 PO12000 P012000 P012000 P012000 P012000 20 GAS VALVE HEAT SHIELD KO00080 KO00080 KO00080 KO00080 KO00080 KO00080 21 SHIELD COVER K7011 - 6030 K7011 - 6030 KTO11 - B031 1 ( 7011 - 8031 22 NOT USED ( OR PROVIDED ) 23 PILOT - BURNER P322274 P322275 P322274 P322275 P322274 P322275 24 NOT USED ( OR PROVIDED ) 25 VENT UMIT CONTROL P , 500472 P500472 P500406 P500406 P500118 P500118 26 HEAT SI - IIELD ( REAR ) , K7003 - 6370 K7003 - 6370 K7003 - 6371 K7 ( X ) 3 - 6371 K7003 - 6372 KT ( X ) 3 - 6372 27 BACK PLATE K000226 K000226 K000227 K000227 K000228 K000228 28 RF _ ARCORNE _ BRACE K7003 - 80 _ 1 ( 7003 - 6 ( 307 K7003 - eOg7 K7003 - 60e7 K7003 - 60 _ K7 ( X ) 3 - 60e7 " _ NOT _ NOTF _ Screws . bolts and woshers are etandard hardware Item = and may be purchased locally FOR PARTS ILLUS'I1RA'nON , SEE PAGE 20 - - 22 - -
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Service Hints If your heater fails to work right , you may avoid inconvenience and the cost of a service call by checking the following points before you call for service . FOR YOUR SAFETY FOR YOUR SAFETY If you smell gas : owners Do not store or use gasoline 1 . Open windows . or other flammable vapors and 2 . Don't touch electrical . manual liquids in the vicinity of this or any 3 . Extinguish any open flame . other appliance . 4 . Immediately call your gas supplier . MODEL NOS . FOR NAT . GAS ONLY POSSIBLE CAUSE WHAT TO DO 2001612 ; 2001622 If your heater Is not heating or not giving enough heat - - Thermostat is not set correctly . Reset thermostat to desired setting . 3501512 ; 3501522 Pilot is out . Check pilot . Relight if necessary 3501912 ; 3501922 following instructions for " Operating 5001512 ; 5001522 Your Heater . " Pilot is on but burnerwon't 5001912 ; 5001922 If gas valve is set at other than " On " come on . heater will not operate . Shut heater 6501512 ; 6501522 down and follow instructions for relighting in " Operating Your Heater " 6501912 ; 6501922 section . Check flame . If it is yellow the burner Burner is not operating is not getting enough air . Or if flame properly . is blue and noisy and seems to lift off the burner , the burner is getting too much air . See page 14 . Air flow restricted . Check that doors , drapes or furniture are not blocking heater louvers . Pilot goes out time after time - - MODEL NOS . Heater flue blocked . Locatevent outletblockageand clean . FOR L . RGAS ONLY If bumer is noisy - - 2001611 ; 2001621 Gas input amount is incorrect . Contact Williams Service Department . Too much primary air . Contact Williams Service Department . 3501511 ; 3501521 If blower does not run - - 3501911 ; 3501921 ( if equipped ) Fan switch not set . 5001511 ; 5001521 Select fan speed . Blower not connected to Connectto electricpower . 5001911 ; 5001921 electric power . 6501511 ; 6501521 If blower motor is noisy - - ( if equipped ) 6501911 ; 6501921 Housing rattling . Tighten screws . Clean blower wheel . Blower dirty . Blower wheel bent . Straighten or replace . See troubleshooting section for more detailed information . How to Order Repair Parts All parts listed herein may be ordered from your equip - When ordering repair parts , always give the following information : ment supplier . 1 . MODEL NUMBER The Model Number of your Williams room heater will be 2 . MFG . DATE CODE found on the rating plate near gas valve , inside control 3 , PART NUMBER compartment . 4 . PART DESCRIPTION WILLIAMS FURNACE COMPANY MANUFACTURED IN THE U . S . A . 225 Acacia Street Established 1916 Colton , CA 92324 USA ( 909 ) 825 - 0993 FAX : ( 909 ) 824 - 8009 © 1998 The Williams Furnace Company Pdnted in U . S . A . Rev . 4 / 98 P500407
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