owners manual forced air natural gas construction heater - Desa

OWNERS MANUALFORCED AIR NATURAL GAS CONSTRUCTION HEATERModel3500-FACNGSTOPQUESTIONS?MISSING / DAMAGED PARTSPlease do not return this product to the store.If a part is damaged or missing, simply e-mail us atphp@allpro-heaters.com, or visit our website athttp://allpro-heaters.com, or call our CustomerService Department at (888) 619-7060.We will be happy to assist you!You can register your heater on line athttp://allpro-heaters.com/warranty.TABLE OF CONTENTSHEATER SPECIFICATIONS................................................................................................................ 2WARNINGS .................................................................................................................................. 2OPERATING PRECAUTIONS ............................................................................................................. 3SAFETY PRECAUTIONS .................................................................................................................... 3ODOR FADE WARNING ...................................................................................................................... 4OPERATING INSTRUCTIONS ............................................................................................................ 5SERVICING ......................................................................................................................................... 53500-FACNG - PARTS ........................................................................................................................ 63500-FACNG - WIRING DIAGRAM ...................................................................................................... 7WARRANTY......................................................................................................................................... 8SERVICE CENTERS .......................................................................................................................... 8INSTRUCTIONS FOR ORDERING PARTS ........................................................................................ 8WARRANTY REGISTRATION ............................................................................................................. 9RETAIN THESE INSTRUCTIONS FOR FUTURE REFERENCE© 2002 Scheu Products Company

Model3500-FACNGHEATER SPECIFICATIONSType of Gas:For use with Natural Gas OnlyGas Supply Pressureto regulator Maximum: 60 PSIG (414.0 kPa) Minimum: 15 PSIG (103.5 kPa)regulator out20 PSIG (138. kPa)Electrical Input: 115V, 60 Hz, 1Ø, 3a Minimum Operating Voltage: 100VIgnition:Primary Flame Control:Direct Spark, interrupted typeSolid State, 10-15 Second TimingHigh Temperature Control: 240°F (116°C) Minimum Ambient Temp. Rating 0°F (-17.8°C)Model: 3500-FACNGRating: 175,000 - 350,000 BTU HR(51.25 - 102.51 kW)Fuel Consumption:162.0 - 324.0 CuFt/HRFuel Orifice Port No.: 1Fuel Orifice Port Size:0.110" (2.79mm)Heated Air Output: 1400 cfm(39.64 cmm)WARNINGSYOUR SAFETY IS IMPORTANT TO YOU AND TO OTHERS, SO PLEASEREAD THESE INSTRUCTIONS BEFORE YOU OPERATE THIS HEATER.GENERAL HAZARD WARNING:FAILURE TO COMPLY WITH THE PRECAUTIONS AND INSTRUCTIONS PROVIDED WITH THIS HEATER, CAN RESULT INDEATH, SERIOUS BODILY INJURY AND PROPERTY LOSS OR DAMAGE FROM HAZARDS OF FIRE, EXPLOSION, BURN,ASPHYXIATION, CARBON MONOXIDE POISONING, AND/OR ELECTRICAL SHOCK.ONLY PERSONS WHO CAN UNDERSTAND AND FOLLOW THE INSTRUCTIONS SHOULD USE OR SERVICE THIS HEATER.IF YOU NEED ASSISTANCE OR HEATER INFORMATION SUCH AS AN INSTRUCTIONS MANUAL, LABELS, ETC. CONTACTTHE MANUFACTURER.WARNING: NOT FOR HOME OR RECREATIONAL VEHICLE USEWARNING: FIRE, BURN, INHALATION, AND EXPLOSION HAZARD. KEEP SOLID COMBUSTIBLES, SUCH ASBUILDING MATERIALS, PAPER OR CARDBOARD, A SAFE DISTANCE AWAY FROM THE HEATER AS RECOMMENDEDBY THE INSTRUCTIONS NEVER USE THE HEATER IN SPACES WHICH DO OR MAY CONTAIN VOLATILE OR AIRBORNECOMBUSTIBLES, OR PRODUCTS SUCH AS GASOLINE, SOLVENTS, PAINT THINNER, DUST PARTICLES OR UNKNOWNCHEMICALS.Scheu Products Company, IncorporatedMail: P.O. Box 250, Upland, CA 91785Plant: 8855 Baker Ave., Rancho Cucamonga, CA 91730Telephone: 800-325-7057www.scheuco.comcustomerservice@scheuco.com8689September 2002Page -2-

OPERATING PRECAUTIONSSAFETY PRECAUTIONSThis is a natural gas, direct-fired, forced air heater. It's intendeduse is primarily temporary heating of buildings underconstruction, alteration or repair.If natural gas leaks from a connection or fitting, it mixes with thesurrounding air, forming a potentially explosive mixture.Obviously, gas leaks should be avoided, so set up the gassupply with utmost care. Read enclosed Odor Fade Sheet foradditional information about detecting gas leaks. Leak checknew connections or reconnections with a soap and watersolution and follow all connections instructions herein.This heater was designed for use as a construction heater inaccordance with ANSI Standard Z83.7/CGA 2.14-2000. Checkwith your local fire safety authority if you have any questionsabout your applications. Other standards govern the use of fuelgases and heat producting products in specific applications.Your local authority can advise you about these.Direct-Fired means that all of the combustion products enter theheated space. Even though this heater operates very close to100 percent combustion efficiency, it still produces smallamounts of carbon monoxide. Carbon monoxide (called CO) istoxic. We can tolerate small amounts but not a lot. CO can buildup in a heated space and failure to provide adequate ventilationcould result in death. The symptoms of inadequate ventilationare:headachedizzinessburning eyes and nose nauseadry mouth or sore throatSo, be sure to follow advice about ventilation in these operatinginstructions.Forced Air means that a blower or fan pushes the air throughthe heater. Proper combustion depends upon this air flow;therefore, the heater must not be revised, modified or operatedwith parts removed or missing. Likewise, safety systems mustnot be circumvented or modified in order to operate the heater.1. Check the heater thoroughly for damage. DO NOT operate adamaged heater.2. DO NOT modify the heater or operate a heater which hasbeen modified from its original condition.3. Use only natural gas.4. Provide at least 15 psig. gas pressure to the heater inlet(regulator inlet) while the heater is operating.5. Use an appropriate hose or flexible connector not over 10 ft.(3.05m) in length.6.Operate the heater only with the 5-20 psi regulatorprovided by the factory.7.For indoor use only. Area must be well ventilated. Figure 1.(also see "Operating Precautions").8. If at any time gas odor is detected, IMMEDIATELYDISCONTINUE operation until the source of gas has beenlocated and corrected. Read enclosed Odor Fade Sheetfor additional information about detecting gas leaks.10. Install the heater such that is is not directly exposed to waterspray, rain and/or dripping water.11. Maintain minimum clearance from normal combustiblematerial (like paper). Figure 2.12. Due to the high surface and exhaust temperatures, adultsand children must observe clearances to avoid burns orclothing ignition.13. Operate only on a stable, level surface.14. Do not use with ductwork. Do not restrict inlet or exit.15. Use only the electrical power specified. The electricalconnection and grounding must comply with NationalElectrical Code - ANSI/NFPA 70.16. Use only a properly grounded 3-prong receptacle andextension cord.17. Do not move, handle or service while hot or burning.18. Use only in accordance with local codes.When the heater is to be operated in the presence of otherpeople the user is responsible for properly acquainting thosepresent with the safety precautions and instructions, and ofthe hazards involved.Figure 2Figure 1Forced air (7000-FACV) .................................... 4 ft 2 ..................... 4 ft 2 secure them to prevent flapping or movement due to wind action.VENTILATION: Minimum openings requiredMINIMUM CLEARANCE: From normal combustible materialOpening OpeningRadiantForced AirHeater near floor near ceiling Clearance Infrared Convection Forced Air 7000-FACVInfrared ............................................................... 1 ft 2 ..................... 1 ft 2Convection (25-VC) ........................................... 1 ft 2 ..................... 1 ft 2Convection (All others) ...................................... 2 ft 2 ..................... 2 ft 2Radiant ................................................................ 2 ft 2 ..................... 2 ft 2Forced air (30K-125K BTU/HR) .......................... 1 ft 2 ..................... 1 ft 2Forced air (150-FAST, SPC-150T) .................... 2 ft 2 ..................... 2 ft 2Forced air (3500-FACV, SPC-350) .................... 3 ft 2 ..................... 3 ft 2From floor ........................................................... 0 ft .............. 0 ftFrom outlet .......................................................... 6 ft .............. 10 ftFrom sides ................ 3 ft ............ 4 ft ............... 2 ft .............. 3 ftFrom top ....................................... 6 ft ............... 3 ft .............. 5 ftFrom front ................. 6 ftFrom rear .................. 2 ftLocate 10 ft. from canvas or plastic tarpaulins or similar coverings andPage -3-

Model3500-FACNGODOR FADE WARNINGWARNINGAsphyxiation Hazard• Do not use this heater for heating human living quarters.• Do not use in unventilated areas.• The flow of combustion and ventilation air must not beobstructed.• Proper ventilation air must be provided to support thecombustion air requirements of the heater being used.• Refer to the specification section of the heater’s manual,heater dataplate, or contact the Scheu Products Company todetermine combustion air ventilation requirements of theheater.• Lack of proper ventilation air will lead to impropercombustion.• Improper combustion can lead to carbon monoxidepoisoning leading to serious injury or death. Symptom ofcarbon monoxide poisoning can include headachesdizziness and difficulty in breathing.FUEL GAS ODORLP gas and natural gas have man-made odorants added specifically for detection of fuel gas leaks.If a gas leak occurs you should be able to smell the fuel gas. Since Propane (LP) is heavier than air you should smell for the gasodor low to the floor. ANY GAS ODOR IS YOUR SIGNAL TO GO INTO IMMEDIATE ACTION!• Do not take any action that could ignite the fuel gas. Do notoperate any electrical switches. Do not pull any powersupply or extension cords. Do not light matches or any othersource of flame. Do not use your telephone.• Get everyone out of the building and away from the areaimmediately.• Close all propane (LP) gas tank or cylinder fuel supplyvalves, or the main fuel supply valve located at the meter ifyou use natural gas.• Propane (LP) gas is heavier than air and may settle in lowareas. When you have reason to suspect a propane leak,keep out of all low areas.• Use your neighbor’s phone and call your fuel gas supplierand your fire department. Do not re-enter the building orarea.• Stay out of the building and away from the area untildeclared safe by the firefighters and your fuel gas supplier.• FINALLY, let the fuel gas service person and the firefighterscheck for escaped gas. Have them air out the building andarea before you return. Properly trained service people mustrepair any leaks, check for further leakages, and then relightthe appliance for you.ODOR FADING - NO ODOR DETECTED• Some people cannot smell well. Some people cannot smellthe odor of the man-made chemical added to propane (LP)or natural gas. You must determine if you can smell theodorant in these fuel gases.• Learn to recognize the odor of propane (LP) gas and naturalgas. Local propane (LP) gas dealers will be more thanhappy to give you a scratch and sniff pamphlet. Use it tobecome familiar with the fuel gas odor.• Smoking can decrease your ability to smell. Being aroundan odor for a period of time can affect your sensitivity to thatparticular odor. Odors present in animal confinementbuildings can mask fuel gas odor.• The odorant in propane (LP) gas and natural gas iscolorless and the intensity of its odor can fade undersome circumstances.• If there is an underground leak, the movement of gasthrough the soil can filter the odorant.• Propane (LP) gas odor may differ in intensity at differentlevels. Since Propane (LP) gas is heavier than air, theremay be more odor at lower levels.• Always be sensitive to the slightest gas odor. If youcontinue to detect any gas odor, no matter how small, treat itas a serious leak. Immediately go into action as discussedpreviously.ATTENTION - CRITICAL POINTS TO REMEMBER!• Propane (LP) gas has a distinctive odor. Learn to recognizethese odors. (Reference Fuel Gas Odor and Odor Fadingsections above.• Even If you are not property trained in the service and repairof the heater, ALWAYS be consciously aware of the odors ofpropane (LP) gas and natural gas.• If you have not been properly trained in repair and service ofpropane (LP) gas then do not attempt to light heater,perform service or repairs, or make any adjustments to theheater on the propane (LP) gas fuel system.• A periodic sniff test around the heater or at the heater’sjoints; i.e. hose, connections, etc., is a good safety practiceunder any conditions. If you smell even a small amount ofgas, CONTACT YOUR FUEL GAS SUPPLIER IMMEDIATELY.DO NOT WAIT!Page -4-

Model3500-FACNGOPERATING INSTRUCTIONSPREPARING FOR OPERATION1. Check the heater for possible shipping damage. If any isfound, immediately notify the factory.2. Follow all of the "Precautions".3. Install plumbing to a high pressure (15 psi minimum)source of natural gas, using a minumum 3/8" ID hose orflexible connector not over 10 ft. (3.05m) in length.4. Connect the hose to the heater at the 1/4" SAE flare fitting atthe heater inlet.5. Securely tighten all gas connections.6. Open the gas cock and check all gas connections with asoap and water solution. DO NOT USE A FLAME.7. Connect power cord to well-grounded 115V, 60 Hz, 1Øsource of power.8. When using an extension cord, make certain that it is a 3-wire (grounded) cord of proper wire size.START1. Slowly open the gas cock at the natural gas source.2. Plug the power cord into the power source. Turn the heaterthermostat to the temperature desired and heater will igniteautomatically. Adjust regulator to desired output.STOP1. Securely close the gas cock at the gas source.2. Continue to operate heater until all fuel in the hose hasburned.3. Unplug the power cord.RESTART AFTER SAFETY SHUTDOWN1. Securely close the gas cock at the natural gas source.2. Wait 5 minutes.3. Restart following "Start" procedure.MAINTENANCE AND STORAGE1. The heater should be inspected before each use, and atleast annually by a qualified person.SERVICINGA hazardous condition may result if a heater is used that hasbeen modified or is not functioning properly. When the heater isworking properly:* The flame is contained within the heater.* The flame is essentially blue with perhaps some yellowtipping.* There is no strong disagreeable odor, eye burning or otherphysical discomfort.* There is no smoke or soot internal or external to the heater.* There are no unplanned or unexplained shut downs of theheater.The parts lists and wiring diagram show the heater as it wasconstructed. Do not use a heater which is different from thatshown. For this heater, the regulator has a maximum setting of20 PSIG outlet pressure. If there is any uncertainty about theregulator setting, have it checked.A heater which is not working right must be repaired, but only bya trained, experienced service person. To find the service centerclosest to you, visit our website at www.scheuco.com.or call(888) 619-7060.You may also obtain in-warranty or out-of-warranty service bytaking the product to your local service center.In-warranty products will be repaired with no charge for eitherparts or labor. Please include a brief statement indicating date,place of purchase, the nature of the problem and proof ofpurchase.Out-of-warrranty products will be repaired with a charge forparts and labor.Page -5-

3500-FACNG - PARTS9397812345614 13 10 16111215181922414017283624232138203729625303226353427Item Part No. Description Qty. Item Part No. Description Qty.1 3178 Motor Support 12 1174 Motor Ass'y 13 6229 Spacer, Fan 14 6010 Set Screw 25 6073 Fan 16 6225 Snap Bushing 37 7095 Handle Ass'y 18 1486 Burner Shell Ass'y 19 1546 Burner Tube Ass'y 110 1491 Flame Holder Ass'y 111 1487 Middle Cylinder 112 1663 Grid Ass'y 113 3017 Keeper 414 7121 Spacer 415 7118 Electrode 116 6168 High Limit Control Ass'y 117 3841 Fuel Nozzle 118 6224 Snap Bushing 119 6226 Universal Bushing 120 1616 Fuel Tube Ass'y 121 7343 Fitting, Female Tee 1/4" 122 1125 Valve Ass'y 123 7355 Fitting, Male Plug, 1/4 MPT 124 6265 Fitting, 1/4 FPT x 1/4 MPT 125 1734 Thermostat Control Ass'y 126 3441 Bracket, Thermostat Mtg. 127 1507 Thermostat Knob 128 6226 Strain Relief Bushing 129 1036 Power Cord Ass'y 130 3180 Inlet Grill Ass'y 131 6118 Filter 1/4 Pipe Insert 132 1614 Panel, Control Ass'y 133 7474 Nipplet 134 1711 Regulator 135 7475 Fitting 136 7808 Flame Control, potted 137 1731 Control Box Ass'y 138 6144 Ftg, Male Connector 5/16 FLR x 1/4 MPT 139 7094 Clip Handle Mounting 240 7372 Ftg, Male Connector 5/16 FLR x 1/8 MPT 141 7617 Nipple, 2-1/4" 1* 6070 Loop Clamp, 5/16" 2* 8689 Manual, Operating Instructions 1* 8680 Label, BTU Rating 2* 6384 Label, NG 1* 6410 Label, Warning, Therm 1* 7704 Label, Warning 1* 6373 Label, Fan Rotation 1* 6374 Label, Electrical Ground 1* 8683 Label, Logo 1* 7478 Label, Operating Instructions 1* 7692 Label, Pressure Gage Port 1* 8685 Striping 1* Not shown on exploded view

YYYMODEL3500-FACNGWIRING DIAGRAMGASVALVECHASSISGROUNDY or BGY or BHI-LIMITSWITCHRRELECTRODEOMOTORBBWRBWRGLINENEUTVALVEGRNRFLAMECONTROLTHERMOSTATBWLINE CORDGORIFICECOLOR CODELEGENDB BLACKL BLUEG GREENO ORANGER REDW WHITETERMINAL BOARDY TERMINALMALE CONNFEMALE CONNIf any original wiring as supplied by the heater must be replaced, it must be replaced with type AWG 105° Cwire or its equivalent except as indicated (*type SF2-200, **SGI 250° C).WIRING CHARTPARTNO. COLOR LENGTH FROM TO1721 Red (Hi-Temp) 13" High Limit Switch Valve1617 Orange 19" Flame Control (Ignition) Electrode1959 Green 7" Flame Control (Harness) Ground1959 Red 7" Flame Control (Harness) Terminal Block1959 White 6" Flame Control (Harness) Terminal Block1959 Black 6" Flame Control (Harness) Terminal Block

Model3500-FACNGWARRANTYWe are pleased that you have selected our product and takethis opportunity to assure you that qualified service facilities areavailable if required. With the cooperation of independentdealers, a nationwide network of authorized servicing dealers isavailable for your servicing requirements.Should your product require servicing, read the section of themanual entitled “Servicing”.Who gets the warranty? The warranty is limited to the consumerwho originally purchases the product.What is covered? This limited warranty covers all imperfectionsin workmanship and material.What is not covered? This limited warranty does not coverdamage resulting from accident, misuse or abuse, lack ofproper maintenance, affixing of any attachments not providedwith the products, or loss of parts. IN NO EVENT SHALLSCHEU PRODUCTS COMPANY BE LIABLE FOR ANY SPECIAL,INCIDENTAL OR CONSEQUENTIAL DAMAGES NOR FOR ANYDAMAGES RESULTING FROM MISUSE OR MODIFICATION OFTHIS PRODUCT.Registering this heater within 10 days of date of purchaseensures the buyer the protection as stated on our limitedwarranty form.LIMITED WARRANTYThe company warrants this product to be free fromimperfections in material or workmanship, under normal andproper use in accordance with instructions of The Company, fora period of one year from the date of delivery to the buyer. TheCompany, at its option, will repair or replace (f.o.b. factory,California) products returned by the buyer to the factory,California, transportation prepaid within said one year periodand found by the Company to have imperfections in material orworkmanship.the like and no implied warranty arising from course of dealingor usage of trade. This warranty will not apply to any productwhich has been repaired or altered outside of the Californiafactory in any respect which in our judgment affects its conditionor operation.Some states do not allow the exclusion or limitation ofincidental or consequential damages, so the above limitation orexclusion may not apply to you. This Warranty gives you specificlegal rights, and you may have other rights which vary from stateto state.SERVICE CENTERSScheu Products Company has over 1,000 service centersthroughout North America. Call (888) 619-7060 or emailphp@scheuco.com to request the service center nearest you.Include the Make and model of your heater in any emails.INSTRUCTIONS FOR ORDERING PARTSWe recommend that only parts supplied by the manufacturer beused on this unit. A locally purchased part may appear to beidentical, although in reality it might endanger the heater or thepersons operating the heater.The heater should be serviced only by a trained, experiencedservice person.Read the section on "Servicing" before ordering parts.For parts orders, call 888-619-7060 or e-mail us atphp@scheuco.com. Please have the model number of yourheater and the replacement part number when placing yourorder.If a part is damaged or missing, simply e-mail us atphp@scheuco.com, visit our website at scheuco.com, or callour Technical Support Department at (888) 619-7060.Address any Warranty Claims to the Customer ServiceDepartment, Scheu Products Company, Incorporated, P.O. Box250, Upland, California 91785, or e-mail us atphp@scheuco.com. Include your name, address and telephonenumber and include details concerning the claim. Also, supplyus with the purchase date and the name and address of thedealer from whom you purchased our product.The foregoing is the full extent of the responsibility of theCompany. There are no other warranties, express or implied.Specifically there is no warranty of fitness for a particularpurpose and there is no warranty of merchantability. In no eventshall the Company be liable for delay caused by imperfections,for consequential damages, or for any charges of the expenseof any nature incurred without its written consent. The cost ofrepair or replacement shall be the exclusive remedy for anybreach of warranty. There is no warranty against infringement ofPage -8-

Hand print only. Use black or blue ink pen to fill in this form. Cross or check inside the circle.Your InformationWarranty RegistrationFirst NameLast nameMailing Address-CityStatePostal codeE-mail AddressAnnual house hold income before tax $50,000Age of Purchaser 60 yearsYour PreferencesWho selected the heater? Male Female BothHeater will be used by? Individual BusinessHow did you learnabout our heater?AdvertisingStore displayOtherRelative/friendFold HerePreviously owned heaterIn choosing your heater the following categorieswere:FeaturesPortabilityPriceSomewhatImportantImportantVeryImportantWhat prompted you tobuy your heater?Sudden cold weatherReplaces old modelEmergency backup heatHard to heat locationQualityHeat OutputHeater on saleOtherWarrantyConstruction projectServiceabilityWhere will you use theheater?Construction siteShopWarehousePatioFuel economyEase of useOtherSizeProduct InformationFold Here/ /-Date of Purchase (MM/DD/YY)Cost of Heater ($)S/N (Located on a silver label on heater)Model Number (Located on a black and white label on heater)Brand Name All Pro Universal National RiversideStore Information where heater was purchasedStore NameCityStateType of Store Hardware Home Center Warehouse Retailer Discount Store Farm Supply Contractor’s Supply OtherRegistering this heater within 10 days of purchase ensures the buyer the protection as stated on our limited warranty form.

SCHEU PRODUCTS COMPANY, INCATTN: MARKETING DEPARTMENT8855 BAKER AVENUERANCHO CUCAMONGA, CA 91730Visit our website for product information, technical support, customer service, and warranty registration at:WWW.ALLPRO-HEATERS.COM for All-Pro products or WWW.UNVERISAL-HEATERS.COM for Universal products.