Desa VN10TA User's Manual
Contents
1. ODS PILOT 104086 PARTS LIST VN10TA 104086 OWNER S MANUAL This list contains replaceable parts used in your heater When ordering parts follow the instructions listed under Replacement Parts on page 18 of this manual PART NUMBER 098304 01 098454 06CD 099318 03 101108 01 099275 01 M15823 37 503329 098514 01 098594 01 099884 03 099056 24 104087 01 099387 11 M11084 26 104084 01 098522 16 097159 04 098271 03 102571 04 099415 12 098303 02 PARTS AVAILABLE NOT SHOWN 1 102471 01 100642 02 DESCRIPTION Screw 10 x 3 8 Front Panel Grill Guard Removable Speed Clip Reflector Screw Hex 8 x 1 4 ODS Pilot Assembly Thermocouple Ignitor Electrode Burner Assembly Injector Tubing Burner Pilot Tubing Valve to pilot Screw 10 x 3 8 Tubing Inlet Control Valve Piezo Ignitor Ignitor Cable Cabinet Assembly Gas Regulator Screw 6 x 5 16 Control Position Label Assembly Hardware N 44M 444 N N VANGUARD NATURAL GAS HEATER SPECIFICATIONS VN10TA Btu 10 000 Type Gas Natural Only Ignition Piezo Pressure Regulator Setting 3 5 W C Inlet Gas Pressure inches of water Maximum 10 5 Minimum 5 Dimensions Inches H x W x D Heater 21 12x 13 2x7 Carton 24 3lax 16 4 x 7 2 Weight pounds Heater 14 Shipping 18 TECHNICAL SERVICE You may have further questions about in stallation operation2. BEFORE LIGHTING smell all around the appliance area for gas Be sure to smell next to the floor because some gas is heavier than air and will settle on the floor WHAT TO DO IF YOU SMELL GAS e Do not try to light any appliance Do not touch any electric switch do not use any phone in your building e Immediately call your gas supplier from a neighbor s phone Follow the gas supplier s instructions e If you cannot reach your gas supplier call the fire department Use only your hand to push in or turn the gas control knob Never use tools If the knob will not push in or turn by hand don t try to repair it call a qualified service technician or gas supplier Force or attempted repair may result in a fire or explosion Do not use this appliance if any part has been under water Immediately call a qualified service technician to inspect the appliance and to replace any part of the control system and any gas control which has been un der water 104086 OPERATING HEATER Continued ia LIGHTING INSTRUCTIONS 1 STOP Read the safety information on page 10 column 3 2 Make sure equipment shutoff valve is fully open 3 Turn control knob clockwise 7 x to the OFF position 4 Waitfive 5 minutes to clear out any gas Then smell for gas including near the floor If you smell gas STOP Fol low B in the safety information on page 10 column 3 If you don t smell gas go to the next step
3. 5 Press in control knob and turn coun terclockwise M to pilot position Keep control knob pressed for five seconds Note You may be running this heater for the first time after hook ing up to gas supply If so the con trol knob may need to be pressed in for 30 seconds This will allow air to bleed from the gas system Ignitor Button Control Knob IGNITOR OWNER S MANUAL 6 With control knob pressed in push down and release ignitor button This will light pilot The pilot is attached to the bottom of burner The pilot can be seen below the left hand plaque If needed keep pressing ignitor but ton until pilot lights If pilot does not stay lit contact a qualified service person or gas supplier for repairs 7 Keep control knob pressed in for 30 seconds after lighting pilot After 30 seconds release control knob If control knob does not pop up when released contact a qualified service person or gas supplier for repairs Note If pilot does not light repeat steps 3 through 7 This heater has a safety interlock system Wait one 1 minute before lighting pilot again 8 Turn control knob counterclockwise XY to desired heating level Both plaques should light Set control knob to any heat level between HI and LO Ignitor Electrode Thermocouple Pilot Burner Figure 15 Control Knob In The OFF Figure 16 Pilot Position 104086 A CAUTION Do not try to ad just heatin
4. permanently located manufactured mobile home where not prohibited by local codes This appliance is only for use with the type of gas indicated on the rating plate This appliance is not convertible for use with other gases Aftermarket Completion of sale not for purpose of resale from the manufacturer Save this manual for future reference VANGUARD NATURAL GAS HEATER SAFETY INFORMATION A WARNINGS IMPORTANT Read this owner s manual carefully and completely before trying to assemble oper ate or service this heater Im proper use of this heater can cause serious injury or death from burns fire explosion and car bon monoxide poisoning DANGER Carbon monoxide poisoning may lead to death Carbon Monoxide Poisoning Early signs of carbon monoxide poisoning resemble the flu with headaches dizziness or nausea If you have these signs the heater may not be working properly Get fresh air at once Have heater serviced Some people are more affected by carbon monoxide than others These include pregnant women persons with heart or lung disease or anemia those under the influence of alcohol and those at high altitudes Natural Gas Natural gas is odorless An odor making agent is added to natural gas The odor helps you detect a natural gas leak However the odor added to natural gas can fade Natural gas may be present even though no odor exists Make certain you read
5. and understand all warnings Keep this manual for reference It is your guide to safe and proper operation of this heater A WARNING Any change to this heater or its controls can be dangerous A WARNING Do not use any accessory not approved for use with this heater Due to high temperatures the appliance should be located out of traffic and away from furniture and draperies Do not place clothing or other flammable material on or near the appliance Never place any objects on the heater Surface of heater becomes very hot when running heater Keep children and adults away from hot surface to avoid burns or clothing ignition Heater will re main hot for a time after shut down Allow surface to cool be fore touching Carefully supervise young chil dren when they are in the same room with heater Make sure grill guard is in place before running heater Keep the appliance area clear and free from combustible materials gasoline and other flammable vapors and liquids This appliance is only for use with the type of gas indicated on the rating plate This appliance is not convertible for use with other gases If you smell gas shut off gas supply e do not try to light any appliance do not touch any electrical switch do not use any phone in your building immediately call your gas supplier from a neighbor s phone Follow the gas supplier s instr
6. or troubleshooting If so contact DESA International s Technical Service Department at 1 800 323 5190 You can also visit DESA International s technical service web site at www desatech com SERVICE HINTS When Gas Pressure Is Too Low e pilot will not stay lit e burner s will have delayed ignition e heater will not produce specified heat When Gas Quality Is Bad e pilot will not stay lit e burner s will produce flames and soot e heater will backfire when lit You may feel your gas pressure is too low or gas quality is bad If so contact your local natural gas supplier SERVICE PUBLICATIONS You can purchase a service manual from the address listed on the back page of this manual Send a check for 5 00 payable to DESA International ACCESSORY Purchase this heater accessory from your local dealer If they cannot supply this ac cessory call DESA International s Parts Department at 1 800 972 7879 for referral information You can also write to the ad dress listed on the back page of this manual EQUIPMENT SHUTOFF VALVE GA5010 Equipment shutoff valve with 1 8 NPT tap 18 REPLACEMENT PARTS Note Use only original replacement parts This will protect your warranty coverage for parts replaced under warranty PARTS UNDER WARRANTY Contact authorized dealer from whom you purchased this product If they cannot sup ply original replacement part s call DESA International s Technical Serv
7. ECTING BURNER Check pilot flame pattern and burner flame pattern often PILOT FLAME PATTERN Figure 17 shows acorrect pilot flame pattern Figure 18 shows an incorrect pilot flame pattern The incorrect pilot flame is not touch ing the thermocouple This will cause the thermocouple to cool When the thermo couple cools the heater will shut down If pilot flame pattern is incorrect as shown in Figure 18 e turn heater off see To Turn Off Gas to Appliance page 11 e see Troubleshooting pages 13 through 15 Pilot Burner Thermocouple lt lt Figure 17 Correct Pilot Flame Pattern Pilot Burner Thermocouple Figure 18 Incorrect Pilot Flame Pattern BURNER FLAME PATTERN Figure 19 shows a correct burner flame pattern Figure 20 shows an incorrect burner flame pattern Ifburner flame pattern is incorrect as shown in Figure 20 e turn heater off see To Turn Off Gas to Appliance page 11 e see Troubleshooting pages 13 through 15 i age Figure 19 Correct Burner Flame Pattern acaq Figure 20 Incorrect Burner Flame Pattern CLEANING AND MAINTENANCE WARNING Turn off heater and let cool before cleaning A CAUTION You must keep co
8. L S LIABILITY IS HEREBY LIMITED TO THE PURCHASE PRICE OF THE PRODUCT AND DESA INTERNATIONAL SHALL NOT BE LIABLE FOR ANY OTHER DAMAGES WHATSOEVER INCLUDING INDIRECT INCIDENTAL OR CONSEQUENTIAL DAMAGES Some states do not allow a limitation on how long an implied warranty lasts or an exclusion or limitation of incidental or consequential damages so the above limitation on implied warranties or exclusion or limitation on damages may not apply to you This warranty gives you specific legal rights and you may also have other rights that vary from state to state For information about this warranty write DI S A INTERNATIONAL 2701 Industrial Drive P O Box 90004 Bowling Green KY 42102 9004 www desatech com 104086 01 NOT A UPC
9. ORTANT Install an equipment shutoff valve in an accessible location The equip ment shutoff valve is for turning on or shutting off the gas to the appliance 104086 OWNER S MANUAL Apply pipe joint sealant lightly to male threads This will prevent excess sealant from going into pipe Excess sealant in pipe could result in clogged heater valves Accaution Use pipe joint seal ant that is resistant to liquid pe troleum LP gas 3 8 NPT Equipment Shutoff Valve From Gas Meter 5 W C too 10 5 W C Pressure 3 Minimum a RE Figure 12 Gas Connection Install sediment trap in supply line as shown in Figure 12 Locate sediment trap where it is within reach for cleaning Locate sedi ment trap where trapped matter is not likely to freeze A sediment trap traps moisture and contaminants This keeps them from going into heater controls If sediment trap is not installed or is installed wrong heater may not run properly IMPORTANT Hold pressure regulator with wrench when connecting it to gas pip ing and or fittings Pressure Regulator Heater Cabinet Ground Joint Tee Joint Reducer Bushing to 1 8 NPT Test Gauge Connection 1 8 NPT Sediment Trap A CSA AGA design certified equipment shutoff valve with 1 8 NPT tap is an acceptable alternative to test gauge connection Purchase the optional CSA AGA design certified equipment shutoff valve from your dea
10. VANGUARD INFRARED VENT FREE NATURAL GAS HEATER OWNER S OPERATION AND INSTALLATION MANUAL VN10TA WARNING If the information in this manual is not followed exactly a fire or explosion may result causing property damage personal in jury or loss of life Do not store or use gasoline or other flammable vapors and liquids in the vicinity of this or any other appliance WHAT TO DO IF YOU SMELL GAS Do not try to light any appliance Do not touch any electrical switch do not use any phone in your building Immediately call your gas supplier froma neighbor s phone Follow the gas supplier s instructions If you cannot reach your gas supplier call the fire department Installation and service must be performed by a qualified installer service agency or the gas supplier WARNING Improper instal lation adjustment alteration service or maintenance can cause injury or property dam age Refer to this manual for correct installation and op erational procedures For as sistance or additional infor mation consult a qualified in staller service agency or the gas supplier WARNING This is an unvented gas fired heater It uses air oxygen from the room in which it is in stalled Provisions for ad equate combustion and ventilation air must be pro vided Refer to Air For Com bustion and Ventilation on page 4 of this manual This appliance may be installed in an aftermarket
11. control knob pressed in 10 seconds 3 Fully open equipment shutoff valve 4 Hand tighten until snug then tighten 1 4 turn more 5 A Contact local natural gas company B Clean ODS pilot see Cleaning and Maintenance page 12 or replace ODS pilot assembly 6 Replace thermocouple 7 Replace control valve Continued VANGUARD NATURAL GAS HEATER TROUBLESHOOTING Continued OBSERVED PROBLEM POSSIBLE CAUSE REMEDY Burner plaques do not light after ODS pilot 1 Burner orifice s is clogged 1 Clean burner orifice s see Cleaning is lit 2 Burner orifice s diameter is too small Inlet gas pressure is too low W and Maintenance page 12 or replace burner orifice s Replace burner orifice s Contact local natural gas company Delayed ignition of burner plaques 1 Manifold pressure is too low 2 Burner orifice s is clogged N Contact local natural gas company Clean burner orifice s see Cleaning and Maintenance page 12 or replace burner orifice s Burner backfiring during combustion 1 Burner orifice s is clogged or damaged Inlet gas pressure is too low Burner damaged Gas regulator defective AUN AUN Clean burner orifice s see Cleaning and Maintenance page 12 or replace burner orifice s Contact local natural gas company Replace burner Replace gas regulator Burner plaques do not glow Plaque damaged Inlet gas pressure is too low Contr
12. crew Locations 20 1 4 Minimum To Maintain 3 Clearance From Floor FLOOR Figure 5 Mounting Screw Locations Continued VANGUARD NATURAL GAS HEATER INSTALLATION Continued Installing Two Mounting Screws Note Wall anchors and mounting screws are in hardware package The hardware package is provided with heater Attaching To Wall Stud Method For attaching mounting screw to wall stud 1 Drill hole at marked location using 9 64 drill bit Insert mounting screw into wall stud Tighten screw until 1 16 space thick ness of penny is between screwhead and wall Attaching To Wall Anchor Method Follow instructions below to attach mount ing screws to hollow walls wall areas be tween studs or solid walls concrete or masonry 1 Drill holes at marked locations using 5 16 drill bit For solid walls concrete or masonry drill at least 1 4 deep Fold wall anchor see Figure 6 3 Insert wall anchor wings first into hole Tap anchor flush to wall 4 For thin walls 1 2 or less insert red key into wall anchor Push red key to pop open anchor wings see Figure 7 IMPORTANT Do not hammer key For thick walls over 1 2 thick or solid walls do not pop open wings 5 Tighten two screws until 1 16 space thickness of penny is between screwheads and wall see Figure 8 NA Figure 6 Folding Anchor Thin Walls 1 4 to 1 2 thick X TER Figure 7 Popping O
13. e items directly to the outdoors or spaces open to the outdoors These spaces include attics and crawl spaces Follow the National Fuel Gas Code NFPA 54 ANS 2223 1 Section 5 3 Air for Combustion and Ventilation for required size of ventilation grills or ducts IMPORTANT Do not provide openings for inlet or outlet air into attic if attic has a thermostat controlled power vent Heated air entering the attic will activate the power vent 4 12 J Ventilation Grills Into Adjoining Room Ventilation Option 2 Grills Or into Adjoining Remove Room Door into Option 1 Adjoining Room Option 3 La Figure 2 Ventilation Air from Inside Building Ventilated Attic Outlet ES oe To Attic Inlet ATTAIN Air Ventilated ISLA Crawl Space Figure 3 Ventilation Air from Outdoors 6 104086 INSTALLATION NOTICE This heater is intended foruse as supplemental heat Use this heater along with your pri mary heating system Do not in stall this heater as your primary heat source If you have a central heating system you may run system s circulating blower while using heater This will help circu late the heat throughout the house In the event of a power outage you can use this heater as your primary heat source WARNING A qualified ser vice person m
14. eplace ignitor Replace piezo ignitor Replace ignitor NAN When ignitor button is pressed and control knob is pressed in and turned to the PILOT position there is spark at ODS pilot but no ignition 1 Gas supply turned off or equipment shutoff valve closed 2 Control knob not in PILOT position 3 Control knob not pressed in while in PILOT position 4 Air in gas lines when installed 5 ODS pilot is clogged 6 Gas regulator setting is not correct j Turn on gas supply or open equipment shutoff valve Turn control knob to PILOT position Press in control knob while in PILOT position 4 Continue holding down control knob Repeat igniting operation until air is removed 5 Clean ODS pilot see Cleaning and Maintenance page 12 or replace ODS pilot assembly 6 Replace gas regulator Wn ODS pilot lights but flame goes out when control knob is released 104086 1 Control knob not fully pressed in 2 Control knob not pressed in long enough 3 Equipment shutoff valve not fully open 4 Thermocouple connection loose at control valve 5 Pilot flame not touching thermocouple which allows thermocouple to cool causing pilot flame to go out This problem could be caused by one or both of the following A Low gas pressure B Dirty or partially clogged ODS pilot Thermocouple damaged Control valve damaged Na www desatech com 13 1 Press in control knob fully 2 After ODS pilot lights keep
15. g levels by using the equipment shutoff valve THERMOSTAT CONTROL OPERATION The control knob can be set to any heat level between HI and LO When the room temperature exceeds the settemperature the burner will cycle to pilot The burner will cycle back on when room tempera ture drops below the set temperature Selecting a higher setting will cause the heater to run longer producing greater heat output At lower settings the heater will run less Note The thermostat sensing bulb mea sures the temperature of air near the heater cabinet This may not always agree with room temperature depending on housing construction installation loca tion room size open air temperatures etc Frequent use of your heater will let you determine your own comfort levels SS TO TURN OFF GAS TO APPLIANCE Shutting Off Heater Turn control knob clockwise x to the OFF position Shutting Off Burner Only pilot stays lit Turn control knob clockwise x to the PILOT position DI MANUAL LIGHTING PROCEDURE 1 Remove front panel see Figure 10 page 8 2 Followsteps1 through 5 under Light ing Instructions 3 With control knob pressed in strike match Hold match to pilot until pi lot lights 4 Keep control knob pressed in for 10 seconds after pilot is lit After 10 sec onds release control knob Follow step 8 under Lighting Instructions 5 Replace front panel VANGUARD NATURAL GAS HEATER INSP
16. his time Replace front panel after making gas connections and checking for leaks see pages 9 and 10 Figure 11 Installing Bottom Mounting Screw 104086 INSTALLATION Continued CONNECTING TO GAS SUPPLY A WARNING This appliance re quires a 3 8 NPT National Pipe Thread inlet connection to the pressure regulator WARNING A qualified service person must connect heater to gas supply Follow all local codes A WARNING Never connect heater to private non utility gas wells This gas is commonly known as wellhead gas IMPORTANT Check gas line pressure before connecting heater to gas line Gas line pressure must be no greater than 14 inches of water If gas line pressure is higher heater regulator damage could occur A CAUTION Use only new black iron or steel pipe Inter nally tinned copper tubing may be used in certain areas Check your local codes Use pipe 3 8 diameter or greater to allow proper gas volume to heater If pipe is too small undue loss of pressure will occur Installation must include a equipment shutoff valve ground joint union and plugged 1 8 NPT tap Locate NPT tap within reach for test gauge hook up NPT tap must be up stream from heater see Figure 12 An appliance main gas valve equipment shutoff valve shall be provided in an accessible location for turning on or shutting off the gas to the appliance IMP
17. ice Depart ment at 1 800 323 5190 for information When contacting your dealer or DESA In ternational have ready e your name e your address e model and serial numbers of your heater e how heater was malfunctioning e type of gas used propane LP or natural gas e purchase date Usually we will ask you to return the defec tive part to the factory PARTS NOT UNDER WARRANTY Contact authorized dealers of this product If they cannot supply original replacement part s call DESA International s Parts Department at 1 800 972 7879 for referral information When calling DESA International have ready e model number of your heater e the replacement part number 104086 OWNER S MANUAL NOTES 104086 19 WARRANTY INFORMATION KEEP THIS WARRANTY Model Serial No Date Purchased Always specify model and serial numbers when communicating with the factory We reserve the right to amend these specifications at any time without notice The only warranty applicable is our standard written warranty We make no other warranty expressed or implied LIMITED WARRANTY VANGUARD VENT FREE RESIDENTIAL GAS HEATERS DESA International warrants this product to be free from defects in materials and components for four 4 years from the date of first purchase provided that the product has been properly installed operated and maintained in accordance with all applicable instructions To make a claim u
18. ich the appliances are installed through openings not furnished with doors are con sidered a part of the unconfined space This heater shall not be installed in a con fined space or unusually tight construction unless provisions are provided for adequate combustion and ventilation air Adjoining rooms are communicating only if there are doorless passageways or ventila tion grills between them 104086 OWNER S MANUAL AIR FOR COMBUSTION AND VENTILATION Continued DETERMINING FRESH AIR FLOW FOR HEATER LOCATION Determining if You Have a Confined or Unconfined Space Use this worksheet to determine if you have a confined or unconfined space Space Includes the room in which you will install heater plus any adjoining rooms with doorless passageways or ventilation grills between the rooms 1 Determine the volume of the space length x width x height Length x Width x Height cu ft volume of space Example Space size 18 ft length x 16 ft width x 8 ft ceiling height 2304 cu ft volume of space If additional ventilation to adjoining room is supplied with grills or openings add the volume of these rooms to the total volume of the space 2 Divide the space volume by 50 cubic feet to determine the maximum Btu Hr the space can support volume of space 50 cu ft Maximum Btu Hr the space can support Example 2304 cu ft volume of space 50 cu ft 46 1 or 46 100 maximum Btu Hr the space can
19. in structions to insure proper fresh air for this and other fuel burning appliances in your home Today s homes are built more energy effi cient than ever New materials increased insulation and new construction methods help reduce heat loss inhomes Home owners weather strip and caulk around windows and doors to keep the cold air out and the warm air in During heating months home owners want their homes as airtight as possible While it is good to make your home energy efficient your home needs to breathe Fresh air must enter your home All fuel burning appliances need fresh air for proper com bustion and ventilation Exhaust fans fireplaces clothes dryers and fuel burning appliances draw air from the house to operate You must provide ad equate fresh air for these appliances This will insure proper venting of vented fuel burning appliances PROVIDING ADEQUATE VENTILATION The following are excerpts from National Fuel Gas Code NFPA 54 ANS Z223 1 Sec tion 5 3 Air for Combustion and Ventilation All spaces in homes fall into one of the three following ventilation classifications 1 Unusually Tight Construction 2 Unconfined Space 3 Confined Space The information on pages 4 through 6 will help you classify your space and provide adequate ventilation Unusually Tight Construction The air that leaks around doors and win dows may provide enough fresh air for combustion and ventilation Ho
20. ix with combustion air and create odors OBSERVED PROBLEM POSSIBLE CAUSE REMEDY Heater produces unwanted odors l Heater burning vapors from paint hair spray glues etc See IMPORTANT statement above l Ventilate room Stop using odor causing products while heater is running 2 Gas leak See Warning statement 2 Locate and correct all leaks see at top of page Checking Gas Connections page 6 Heater shuts off in use ODS operates 1 Not enough fresh air is available 1 Open window and or door for ventilation 2 Low line pressure 2 Contact local natural gas company 3 ODS pilot is partially clogged 3 Clean ODS pilot see Cleaning and Maintenance page 12 Gas odor even when control knobisin OFF 1 Gas leak See Warning statement 1 Locate and correct all leaks see position at top of page Checking Gas Connections page 10 2 Control valve defective 2 Replace control valve Gas odor during combustion 1 Foreign matter between control valve 1 Take apart gas tubing and remove and burner foreign matter 2 Gas leak See Warning statement 2 Locate and correct all leaks see at top of page Checking Gas Connections page 10 Moisture condensation noticed on windows 1 Not enough combustion ventilation air 1 Refer to Air for Combustion and 104086 www desatech com 15 Ventilation requirements page 4 VANGUARD NATURAL GAS HEATER ILLUSTRATED 15 PARTS LIST amp i VN10TA N
21. l need no additional fresh air ventilation A WARNING If the area in which the heater may be operated is smaller than that defined as an unconfined space or if the building is of unusually tight construction provide adequate combustion and ventilation air by one of the methods described in the National Fuel Gas Code ANS 2223 1 Section 5 3 or applicable local codes Continued 104086 5 VANGUARD NATURAL GAS HEATER AIR FOR COMBUSTION AND VENTILATION Continued VENTILATION AIR Ventilation Air From Inside Building This fresh air would come from an adjoin ing unconfined space When ventilating to an adjoining unconfined space you must provide two permanent openings one within 12 of the ceiling and one within 12 of the floor on the wall connecting the two spaces see options 1 and 2 Figure 2 You can also remove door into adjoining room see op tion 3 Figure 2 Follow the National Fuel Gas Code NFPA 54 ANS Z223 1 Section 5 3 Air for Combustion and Ventilation for required size of ventilation grills or ducts AX WARNING Rework work sheet adding the space of the adjoining unconfined space The combined spaces must have enough fresh air to supply all appliances in both spaces Ventilation Air From Outdoors Provide extra fresh air by using ventilation grills or ducts You must provide two per manent openings one within 12 of the ceiling and one within 12 of the floor Connect thes
22. ler See Accessory page 18 Continued VANGUARD NATURAL GAS HEATER INSTALLATION Continued CHECKING GAS CONNECTIONS A WARNING Test all gas pip ing and connections for leaks after installing or servicing Cor rect all leaks at once A WARNING Never use an open flame to check for a leak Apply a mixture of liquid soap and water to alljoints Bubbles forming show a leak Correct all leaks at once Pressure Testing Gas Supply Piping System Test Pressures In Excess Of 1 2 PSIG 3 5 kPa l Disconnect appliance with its appliance main gas valve control valve and equip ment shutoff valve from gas supply pip ing system Pressures in excess of 1 2 psig will damage heater regulator Cap off open end of gas pipe where equipment shutoff valve was connected Pressurize supply piping system by either using compressed air or opening main gas valve located on or near gas meter Check all joints of gas supply piping system Apply mixture of liquid soap and water to gas joints Bubbles form ing show a leak Correct all leaks at once Reconnect heater and equipment shutoff valve to gas supply Check re connected fittings for leaks Test Pressures Equal To or Less Than 1 2 PSIG 3 5 kPa 1 Close equipment shutoff valve see Fig ure 13 Pressurize supply piping system by either using compressed air or opening main gas valve located on or near gas meter Check all joints from gas meter
23. nder this warranty the Bill of Sale or cancelled check must be presented This warranty is extended only to the original retail purchaser This warranty covers the cost of part s required to restore this heater to proper operating condition and an allowance for labor when provided by a DESA Authorized Service Center Warranty part s MUST be obtained through authorized dealers of this product and or DESA International who will provide original factory replacement parts Failure to use original factory replacement parts voids this warranty The heater MUST be installed by a qualified installer in accordance with all local codes and instructions furnished with the unit This warranty does not apply to parts that are not in original condition because of normal wear and tear or parts that fail or become damaged as a result of misuse accidents lack of proper maintenance or defects caused by improper installation Travel diagnostic cost labor transportation and any and all such other costs related to repairing a defective heater will be the responsibility of the owner TO THE FULL EXTENT ALLOWED BY THE LAW OF THE JURISDICTION THAT GOVERNS THE SALE OF THE PRODUCT THIS EXPRESS WARRANTY EXCLUDES ANY AND ALL OTHER EXPRESSED WARRANTIES AND LIMITS THE DURATION OF ANY AND ALL IMPLIED WARRANTIES INCLUDING WARRANTIES OF MER CHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE TO FOUR 4 YEARS ON ALL COMPONENTS FROM THE DATE OF FIRST PURCHASE AND DESA INTERNATIONA
24. ntrol areas burner and circu lating air passageways of heater clean Inspect these areas of heater before each use Have heater inspected yearly by a quali fied service person Heater may need more frequent cleaning due to excessive lint from carpeting bedding material pet hair etc ODS PILOT AND BURNER ORIFICE e Use a vacuum cleaner pressurized air or small soft bristled brush to clean CLEANING BURNER PILOT AIR INLET HOLE We recommend that you clean the unit every 2 500hours of operation orevery three months We also recommend that you keep the burner tube and pilot assembly clean and free of dust and dirt To clean these parts we recommend using compressed air no greater than 30 PSI Your local computer store hardware store or home center may carry compressed air in a can You can use a vacuum cleaner in the blow position If using compressed air in a can please follow the directions on the can If you don t follow directions on the can you could damage the pilot assembly 1 Shut off the unit including the pilot Allow the unit to cool for at least thirty minutes Inspect burner pilot for dust and dirt 3 Blow air through the ports slots and holes in the burner Clean the pilot assembly also A yellow tip on the pilot flame indicates dust and dirt in the pilot assembly There is a small pilot air inlet hole about two inches from where the pilot flame comes out of the pilot assembly see Fig
25. ol knob set too low WNT WNT Replace burner Contact local natural gas company Turn control knob to higher setting Slight smoke or odor during initial operation 1 Residues from manufacturing processes Problem will stop after a few hours of operation Heater produces a clicking ticking noise just after burner is lit or shut off 1 Metal expanding while heating or contracting while cooling This is common with most heaters If noise is excessive contact qualified service person White powder residue forming within burner box or on adjacent walls or furniture 1 When heated vapors from furniture polish wax carpet cleaners etc turn into a white powder residue www desatech com 14 Turn heater off when using furniture polish wax carpet cleaners or similar products 104086 TROUBLESHOOTING Continued OWNER S MANUAL building Ay WARNING If you smell gas Shut off gas supply Do nottry to light any appliance Do not touch any electrical switch do not use any phone in your Immediately call your gas supplier from a neighbor s phone Follow the gas supplier s instructions If you cannot reach your gas supplier call the fire department IMPORTANT Operating heater where impurities in air exist may create odors Cleaning supplies paint paint remover cigarette smoke cements and glues new carpet or textiles etc create fumes These fumes may m
26. pen Anchor Wings For Thin Walls Thin or Thick Wall thick wall shown fee Solid Wall Figure 8 Tightening Anchors Placing Heater On Mounting Screws 1 Locate two keyhole slots on back panel of heater see Figure 9 2 Place large openings of slots over screwheads Slide heater down until screws are in small portion of slots Keyhole Slots Figure 9 Location Of Keyhole Slots On Back Panel Of Heater Removing Front Panel Of Heater 1 Remove two screws near bottom cor ners of front panel 2 Lift straight up on grill guard until it stops Grill guard will slide up about 1 4 3 Pull bottom of front panel forward then down Figure 10 Removing Front Panel Of Heater Installing Bottom Mounting Screw 1 Locate bottom mounting hole This hole is near bottom on back panel of heater see Figure 11 Mark screw location on wall Remove heater from wall EDS If installing bottom mounting screw into hollow or solid wall install wall anchor Follow steps 1 through 5 un der Attaching To Wall Anchor Method If installing bottom mounting screw into wall stud drill hole at marked lo cation using 9 64 drill bit 5 Replace heater on wall 6 Insert bottom anchor screw through back panel into bottom anchor or drilled hole see Figure 11 7 Tighten screw until heater is firmly se cured to wall Do not over tighten Note Do not replace front panel at t
27. r cloth wall coverings or operating heater where impurities in the air Such as tobacco smoke aromatic candles cleaning fluids oil or kerosene lamps etc exist may discolor walls IMPORTANT Vent free heaters add mois ture to the air Although this is beneficial installing heater in rooms without enough ventilation air may cause mildew to form from too much moisture See Air for Com bustion and Ventilation pages 4 through 6 A CAUTION If you install the heater in a home garage e heater pilot and burner must be at least 18 inches above floor e locate heater where moving vehicle will not hit it Forconvenience andefficiency install heater e where there is easy access for operation inspection and service e in coldest part of room JOINING WALL CEILING 36 Minimum gr Minimum Right Side Minimum To dee ee hep Surface Of Carpeting Tile FLOOR Or Other Combustible Material Figure 4 Mounting Clearances As Viewed From Front of Heater INSTALLING HEATER TO WALL Marking Screw Locations 1 Determine where you will locate heater WARNING Maintain minimum clearances shown in Figure 5 If you can provide greater clear ances from floor and joining wall 2 Mark two mounting screw locations on wall see Figure 5 e 10 7 3 ie 7 8 4 Minimum To Maintain 8 Clearance i From Wall j mrs Mounting S
28. support 3 Add the Btu Hr of all fuel burning appliances in the space Vent free heater Btu Hr Gas water heater Btu Hr Example Gas furnace Btu Hr Gas water heater 40 000 Btu Hr Vented gas heater Btu Hr Vent free heater 10 000 Btu Hr Gas fireplace logs Btu Hr Total 50 000 Btu Hr Other gas appliances Btu Hr Total Btu Hr Do not include direct vent gas appliances Direct vent draws combustion air from the outdoors and vents to the outdoors 4 Compare the maximum Btu Hr the space can support with the actual amount of Btu Hr used Btu Hr maximum the space can support Btu Hr actual amount of Btu Hr used Example 46 100 Btu Hr maximum the space can support 50 000 Btu Hr actual amount of Btu Hr used The space in the above example is a confined space because the actual Btu Hr used is more than the maximum Btu Hr the space can support You must provide additional fresh air Your options are as follows A Rework worksheet adding the space of an adjoining room If the extra space provides an unconfined space remove door to adjoin ing room or add ventilation grills between rooms See Ventilation Air From Inside Building page 6 B Vent room directly to the outdoors See Ventilation Air From Outdoors page 6 C Install a lower Btu Hr heater if lower Btu Hr size makes room unconfined If the actual Btu Hr used is less than the maximum Btu Hr the space can support the space is an unconfined space You wil
29. to equipment shutoff valve see Figure 14 Apply mixture of liquid soap and water to gas joints Bubbles forming show a leak Correct all leaks at once Pressure Testing Heater Gas Connections 1 Equipment Shutoff Open equipment shutoff valve see Fig ure 13 Open main gas valve located on or near gas meter Make sure control knob of heater is in the OFF position Check all joints from equipment shutoff valve to control valve see Figure 14 Apply mixture of liquid soap and wa ter to gas joints Bubbles forming show a leak Correct all leaks at once Light heater see Operating Heater pages 10 and 11 Check all other in ternal joints for leaks Turn off heater see To Turn Off Gas to Appliance page 11 Replace front panel Open Closed Figure 13 Equipment Shutoff Valve Control Valve Location SI pera PI Ye Gas Meter Y IMI Y Z at f C oat Equipment Si Shutoff Vs n on Valve ov Figure 14 Checking Gas Joints OPERATING HEATER FOR YOUR SAFETY READ BEFORE LIGHTING WARNING If you do not fol low these instructions exactly a fire or explosion may result caus ing property damage personal injury or loss of life C This appliance has a pilot which must be lighted by hand When lighting the pilot follow these instructions exactly
30. tor LE pur Front Panel TTT 104086 OWNER S MANUAL Button Control Knob Grill Guard Burners Heater Cabinet Figure 1 Model VN10TA Vent Free Natural Gas Heater LOCAL CODES Install and use heater with care Follow all local codes In the absence of local codes use the latest edition of National Fuel Gas Code ANS Z223 1 also known as NFPA 54 Available from American National Standards Institute Inc 1430 Broadway New York NY 10018 National Fire Protection Association Inc Batterymarch Park Quincy MA 02269 UNPACKING Remove heater from carton 2 Remove all protective packaging ap plied to heater for shipment 3 Check heater for any shipping damage If heater is damaged promptly inform dealer where you bought heater PRODUCT FEATURES SAFETY PILOT This heater has a pilot with an Oxygen Depletion Sensing ODS safety shutoff system The ODS pilot is a required feature for vent free room heaters The ODS pilot shuts off the heater if there is not enough fresh air PIEZO IGNITION SYSTEM This heater has a piezo ignitor This system requires no matches batteries or other sources to light heater VANGUARD NATURAL GAS HEATER AIR FOR COMBUSTION AND VENTILATION WARNING This heater shall notbe installed ina confined space or unusually tight construction unless provisions are provided foradequate combustion and ven tilation air Read the following
31. uctions if you cannot reach your gas supplier call the fire department 10 11 Heater shall not be installed in a bath room This heater needs fresh outside air ven tilation to run properly This heater has an oxygen depletion sensor ODS pi lot light safety system The ODS shuts down the heater if not enough fresh air is available See Air for Combustion and Ventilation pages 4 through 6 Keep all air openings in front and bot tom of heater clear and free of debris This will insure enough air for proper combustion If heater shuts off do not relight until you provide fresh outside air If heater keeps shutting off have it serviced Do not run heater e where flammable liquids or vapors are used or stored e under dusty conditions Before using furniture polish wax car pet cleaner or similar products turn heater off If heated the vapors from these products may create a white pow der residue within burner box or on adjacent walls or furniture Do not use heater if any part has been under water Immediately call a quali fied service technician to inspect the room heater and to replace any part of the control system and any gas control which has been under water Turn off heater and let cool before ser vicing Only a qualified service person should service and repair heater Operating heater above elevations of 4 500 feet could cause pilot outage 104086 PRODUCT IDENTIFICATION Piezo Igni
32. ure 21 With the unit off lightly blow air through the air inlet hole You may blow through adrinking straw if compressed air is not available Figure 21 Pilot Inlet Air Hole CABINET Air Passageways e Use a vacuum cleaner or pressurized air to clean Exterior e Use a soft cloth dampened with a mild soap and water mixture Wipe the cabi net to remove dust 104086 TROUBLESHOOTING Note For additional help visit DESA International s technical service web site at www desatech com OWNER S MANUAL WARNING Turn off heater and let cool before servicing Only a qualified service person should service and repair heater Note All troubleshooting items are listed in order of operation OBSERVED PROBLEM POSSIBLE CAUSE A CAUTION Never use a wire needle or similar object to clean ODS pilot This can damage ODS pilot unit REMEDY When ignitor button is pressed in there is no spark at ODS pilot 1 Ignitor cable pinched or wet 2 Ignitor electrode not connected to ignitor cable 3 Piezo ignitor nut is loose 4 Broken ignitor cable 5 Ignitor electrode broken 6 Bad piezo ignitor 7 Ignitor electrode positioned wrong 1 Free ignitor cable if pinched by any metal or tubing Keep ignitor cable dry 2 Reconnect ignitor cable 3 Tighten nut holding piezo ignitor to base panel of log set Nut is located behind base panel Replace ignitor cable R
33. ust install heater Follow all local codes CHECK GAS TYPE Use only natural gas If your gas supply is not natural do not install heater Call dealer where you bought heater for proper type heater INSTALLATION ITEMS Before installing heater make sure you have the items listed below e piping check local codes e sealant resistant to propane LP gas e equipment shutoff valve e ground joint union e test gauge connection e sediment trap e tee joint e pipe wrench A CSA AGA design certified equipment shutoff valve with 1 8 NPT tap is an ac ceptable alternative to test gauge connec tion Purchase the optional CSA AGA de sign certified equipment shutoff valve from your dealer See Accessory page 18 104086 OWNER S MANUAL LOCATING HEATER This heater is designed to be mounted on a wall WARNING Maintain the mini mum clearances shown in Figure 4 Ifyoucan provide greater clear ances from floor ceiling andjoin ing wall WARNING Never install the heater e in a bathroom in a recreational vehicle e where curtains furniture clothing or other flammable objects are less than 36 inches from the front top or sides of the heater as a fireplace insert e in high traffic areas e in windy or drafty areas A CAUTION This heater cre ates warm air currents These currents move heat to wall sur faces next to heater Installing heater next to vinyl o
34. wever in buildings of unusually tight construction you must provide additional fresh air Unusually tight construction is de fined as construction where a walls and ceilings exposed to the outside atmosphere have a con tinuous water vapor retarder with a rating of one perm 6x10 kg per pa sec m or less with open ings gasketed or sealed and b weather stripping has been added on openable windows and doors and c caulking or sealants are applied to areas such as joints around window and door frames be tween sole plates and floors be tween wall ceiling joints be tween wall panels at penetra tions for plumbing electrical and gas lines and at other openings If your home meets all of the three criteria above you must provide ad ditional fresh air See Ventilation Air From Outdoors page 6 If your home does not meet all of the three criteria above proceed to De termining Fresh Air Flow For Heater Location page 5 Confined and Unconfined Space The National Fuel Gas Code ANS Z223 1 defines a confined space as a space whose volume is less than 50 cubic feet per 1 000 Btu per hour 4 8 m3 per kw of the aggre gate input rating of all appliances installed in that space and an unconfined space as a space whose volume is not less than 50 cubic feet per 1 000 Btu perhour 4 8 m3 per kw of the aggregate input rating of all appliances installed in that space Rooms communicating directly with the space in wh
Download Pdf Manuals
Related Search