LG Electronics 3828ER3024W Washer User Manual
Contents
1. BEFORE OPERATING smell all 5 around the appliance area for gas Be sure to smell next to the floor because some gas is heavier than air and will Wait five 5 minutes to clear out any gas Then smell for gas including near the floor If you smell gas STOP Follow B in the safety in settle on the floor formation column 1 If you don t A WARNIN pius piene WHAT TO DO IF YOU SMELL smell EAS EU T0 Mexi SER haust port are very hot during GAS 6 Turn equipment shutoff valve coun operation Keep children and Do not try to light any appliance terclockwise FK to ON position adults away from hot surfaces to Donottouch any electric switch do see Figure 18 avoid burns and clothing igni not use any phone in your building 7 This furnace is equipped with an ig tion Carefully supervise young Immediately call your gas supplier nition device which automatically children when they are in the from a neighbor s phone Follow lights the burner Do not try to light same room as furnace Furnace the gas supplier s instructions the burner by hand will remain hot for a time after I ns nea id E e 8 Plug in furnace shutdown Let surface cool be ie p bU e RD 9 Set thermostat to desired setting If fore touching Use only your hand to turn the ihermostat is set above room tem handle on the equipment shutoff valve Never use tools If the handle perature the Mowee Willcomeon AX WARNING Do not oper2. Insert screw in cabinet flange and ther mostat mounting plate and tighten firmly IMPORTANT Make sure thermostat wires do not touch combustion chamber 25 000 BTU Hr Models Figure 4 Attaching Thermostat to Thermostat Mounting Plate 25 000 BTU Hr Models Figure 5 Inserting Thermostat Mounting Plate Between Wall and Cabinet Flange Locating Thermostat on Wall Locate thermostat 4 2 to 5 feet above the floor on an inside wall away from any heat sources The thermostat needs to sense average room temperature Avoid the following HOT SPOTS Concealed pipes or ducts Fireplaces Registers TV sets and radios Lamps or direct sunlight Kitchen COLD SPOTS Concealed pipes or ducts Stairwells drafts or doors drafts Unheated rooms on other side of wall DEAD SPOTS Behind doors Corners and alcoves Before installing thermostat inspect the wall floor and attic areas Make sure there are no pipes wiring or anything else that would interfere with install ing thermostat Do not mount thermo stat to stud If there are any obstruc tions choose a new location Provide two 18 gauge insulated stranded wires for the thermostat wire Also pro vide two wire nuts and two wall anchors There is a red and a white thermostat wire coming from the furnace The extra ther mostat wires you furnish attach to these wires Make sure you furnish a red and a white wire This will insure correct hookup P
3. Remove two screws on front lower flange that attach furnace flange to fur nace cabinet flange see Figure 11 Note 40 000 BTU Hr model has a bot tom shield see parts list page 22 for location Removing two screws will detach bottom shield Slide furnace out of furnace cabinet Locate gas inlet pipe on lower right front of furnace 40 000 BTU Hr Model Only Remove screw holding gas inlet pipe clamp to furnace Disconnect gas inlet pipe from 3 8 manifold elbow Turn gas inlet pipe counterclockwise to disconnect see Figure 12 Rotate the 3 8 manifold elbow 90 so the opening is pointing downward see Figure 12 Locate knockout plug in furnace cabi net Knockout plug is in lower left rear of furnace cabinet as viewed from rear see Figure 13 Remove knockout plug Slide furnace back into furnace cabi net Make sure exhaust tube gaskets are in place Make sure exhaust and intake vent tubes extend into vent caps on back of cabinet Replace two screws by exhaust vent s removed in step 1 25 000 BTU Hr Model Replace two screws removed in step 2 Attach fur nace flange and furnace cabinet lower flange together 40 000 BTU Hr Model Place bottom shield back in place Replace two screws removed in step 2 Attach bot tom shield furnace flange and furnace cabinet lower flange together 11 Run 3 8 pipe or nipple through knock out hole Connect 3 8 pipe or nipple to manifold elbow see Figure 14 Se
4. Tarantin Tank Co P O Box 6129 Freehold NJ 07728 6129 1 800 922 0724 908 780 9340 www tarantin com East Coast Energy 707 Broadway W Long Branch NJ 07764 1542 1 800 755 8809 732 870 8809 www njplaza com ecep Dayton Hardware P O Box 275 North Dayton Station Dayton OH 45404 0275 Ohio Only 1 800 762 3426 937 258 3721 20 Central Air Supply 424 North Rockwell Oklahoma City OK 73127 6119 405 495 0014 Halco Enterprises 208 Carter Drive Unit 21 West Chester PA 19382 4500 1 800 368 0803 610 430 7717 www halcoenterprises com Laportes Parts amp Service 2444 N 5th Street Hartsville SC 29550 7704 803 332 0191 Cans Unlimited Inc P O Box 649 Taylor SC 29687 0013 1 800 845 5301 803 879 3009 cuisales aol com Hughes Supply 1311 S Fern Street Arlington VA 22202 2809 703 416 8555 Tuco Industrial Products 5223 180th St SW Suite 4A 1 Lynwood WA 98037 4506 1 800 735 1268 425 743 9533 www tucoheat com Auer Steel amp Heating Supply 2935 W Silver Spring Dr Milwaukee WI 53209 4224 414 463 1234 www auersteel com 201835 OWNER S MANUAL IL LU ST R ATED This list contains replaceable parts used in your furnace When ordering parts follow the instructions listed under Replacement Parts on page 19 of this manual PARTS LIST CABINET ASSEMBLY 25 000 BTU HR MODEL PART NUMBER DESCRIPTION 201835 030643 Front Cover Assembly 121520 Screw 8 x 3 8 191
5. the thermostat turns the furnace burner and blower on When the room temperature goes above the thermostat setting the thermostat turns the furnace burner off The blower will con tinue to blow about two to three minutes after the burner goes out The thermostat keeps the room at a constant temperature 201835 OWNER S MANUAL INSPECTING BURNER FLAME To observe burner flame remove furnace front cover Remove the two screws at the lower edges of front cover Lift front cover away Locate viewing window on front of combustion chamber You can see burner flame through this window Correct Burner Flame Blue flame with well defined burner ports Incorrect Burner Flame Yellow or lazy flame without well defined burner ports If burner flame is incorrect shut off furnace and contact a qualified service person wa O O O O o o Correct Flame Incorrect Flame Pattern Pattern Figure 19 Burner Flame Patterns NORMAL OPERATING SEQUENCE 1 When the room temperature drops below the thermostat setting the thermostat calls for heat A 24 volt circuit is completed through the time delay relay coil After three to five seconds the contacts in the relay close The blowers come on 2 One motor drives both the combustion air blower and the circulating room air blower The combustion air blower draws air from outside through the in take air vent This air discharges into the combustion cha
6. OBSERVED PROBLEM POSSIBLE CAUSE REMEDY Ignition failures 1 Glo bar will not glow with blower run 1 Check the following ning and microswitch engaged 2 Glo bar glows but burner will not come on 3 Glo bar operating and gas valve open ing but burner will not light 4 If the ignitor remains on after main burner ignition or the valve chatters re verse the 120 volt A C connections at the wall receptacle www desatech com 201835 17 A Check for 24 volts A C across yellow and orange wires at ignition control If no volt age check microswitch and limit switch for circuit completion as well as wiring and wir ing connections Voltage present across yellow and orange wires check for 120 volt input to ignition control across red and blue wires If no voltage check wiring all the way back to power supply 120 volts present across red and blue wires check for 120 volts across the two white wires at ignition control If no voltage replace igni tion control Voltage present across the two white wires check wiring and wire connections to glo bar If wiring and wire connections okay replace glo bar Glo bar broken Check for voltage 24 volts A C at valve 40 seconds after glo bar begins to glow If voltage present but valve not opening replace valve If no voltage at valve check brown wire at ignition control for continuity and good con nection If wire and wire connections okay r
7. cycling motor goes on and off 8 A cuit completion at motor If voltage is present replace motor If no voltage is present at mo tor check for 24 volts on secondary coil or transformer If no voltage replace transformer If 24 volt transformer okay check for circuit completion across contacts on time delay relay Allow three to five seconds for con tact to close If circuit across contacts okay check conti nuity of wiring in motor circuit Check thermostat Contacts should remain closed If contacts are breaking Check thermostat anticipator setting It should be between 75 and 1 0 If anticipator setting okay check amp draw across thermostat If amp draw exceeds 65 check amp draw across coil of valve and time delay relay Note On initial operation of glo bar there is a momentary surge of approxi mately 4 0 amps If amp draw is within limits check for shorts in thermostat wiring If wiring is okay replace thermostat IGNITION FAILURES A WARNINGS Never connect unit or ignition circuit to 230 volts Neveroperate unit with glo bar touching burner or any other ground Damage to ignition control will occur Be sure sensor probe never touches glo bar This will dam age ignition control If the ignition control is defec tive it must be replaced It is not field repairable A CAUTION Do not attempt to repair the ignition control This may alter it and cause it to oper ate incor
8. male threads Prevent excess sealant from going into pipe Excess sealant in pipe could result in clogged furnace valves Equipment Shutoff Valve Test Gauge Connection To Gas Supply 3 Min i Sediment Trap Slab Floor Installation Figure 15 Gas Connection CAUTION Use pipe joint seal ant that is resistant to liquid pe troleum LP gas Install sediment trap in supply line as shown in Figure 15 Locate sediment trap where it is within reach for cleaning A sediment trap traps moisture and contaminants This keeps them from going into furnace controls If sediment trap is not installed or is installed wrong furnace may not run properly IMPORTANT Locate sediment trap where trapped matter will not freeze Install sedi ment trap in a vertical run of pipe If gas piping enters furnace from rear outside you must locate sediment trap in crawl space see Figure 15 If you install furnace in structure with slab foundation you must install gas piping to front of furnace inside see Figure 15 Gas Piping Gas Piping Entering Entering Furnace Furnace Front Rear Inside Inside Equipment Shutoff Valve i pes 3 MinNT z Test Gauge f Sediment Connection Trap Crawl Space Installation CHECKING GAS CONNECTIONS A WARNING Test all gas pip ing and connections for leaks after installation or servic
9. store 26 201835 ILLUSTRATED PARTS LIST BLOWER ASSEMBLY 25 000 BTU HR MODEL NUMBER DESCRIPTION OWNER S MANUAL This list contains replaceable parts used in your furnace When ordering parts follow the instructions listed under Replacement Parts on page 19 of this manual PART NUMBER DESCRIPTION 350086 121252 121247 230510 070537 121661 390260 121421 050751 121388 070385 121227 070362 231231 390296 Room Air Wheel Screw 10 x 3 8 Screw 2 56 x 5 8 Microswitch Assembly Intake Tube Gasket Tinnerman Nut Blower Housing room air Hex Lock Nut 7410 24 Crossover Tube Screw 10 x 1 2 Crossover Tube Gasket Screw 1110 24 x 1 2 Universal Bushing Capacitor Boot Combustion Air and Motor Cover Assy Housing YO PO BH WH ND HH HA XN UI A Part available not shown Standard hardware available at your local hardware store 201835 27 070386 231389 062307 120717 121712 350117 390240 120615 231036 062633 161093 Combustion Air Housing Gasket Motor with Bushings Motor Support Bracket Hex Nut 10 24 keps Tinnerman Combustion Air Wheel Combustion Air Housing outside Screw 8 x 1 2 Capacitor Capacitor Clamp Equipment Shutoff Valve DYNAVENT DIRECT VENT NATURAL GAS HEATER ILLUSTRATED PARTS LIST BLOWER ASSEMBLY 40 000 BTU HR MODEL PART NUMBER DESCRIPTION PART NUMBER DESC
10. the furnace still does not ignite fol 1 STOP Read the safety information Tow insu uchous 10 nura O Gas to WARNING If you do not fol column 1 Furnace page 13 Call a qualified service person Do not attempt to re low these instructions exactly a 2 start furnace fire or explosion may result caus ing property damage personal injury or loss of life Set the thermostat to lowest setting 3 Turn off all electric power to the On Position furnace 4 Turn equipment shutoff valve clock wise N to OFF position see A Thisappliance does not have a pilot Figure 18 Itis equipped with an ignition device which automatically lights the burner Do not try to light the burner by hand Off Position Figure 18 Equipment Shutoff Valve 12 201835 OPERATING FURNACE Continued ns TO TURN OFF GAS TO FURNACE 1 Setthermostat to lowest setting 2 Turn equipment gas valve clockwise to OFF position Do not force equipment gas valve 3 Unplug furnace if service is to be per formed To Shut Down Furnace for an Extended Period of Time 1 Turnequipment gas valve clockwise to OFF position Do not force equipment gas valve 2 Setthermostat on OFF CAUTION Donottry to adjust heating levels by using the equip ment shutoff valve THERMOSTAT CONTROL OPERATION The thermostat responds to the room tem perature When the room temperature drops below the thermostat setting
11. the steps below to install Turn off electrical circuits that pass through mounting wall Make sure there are no pipes or electrical wires in area you intend to cut 2 Use stud locator or small finishing nail to find wall studs When you locate studs drive a small finishing nail into each stud This provides a visual refer ence for stud locations 3 25 000 BTU Hr Model Cut an open ing in wall between the two studs Make opening 14 wide by 13 s high see Figure 2 IMPORTANT You must install furnace horizontally Do not install furnace vertically 40 000 BTU Hr Model Cut a 20 5 16 wide by 14 s high opening in wall see Figure 2 Start your cut right next to stud you are going to anchor cabinet to Cut across wall and through the next stud Stop cut at proper width IMPORTANT You must install furnace horizontally Do not install furnace ver tically 4 25 000 BTU Hr Model Mark screw locations on wall see Figure 2 Make sure screws will anchor into studs Make sure screw locations match screw holes on cabinet flange 40 000 BTU Hr Model Mark screw locations on wall see Figure 2 Make sure screws on one side will anchor into studs Screws on other side will only anchor in wall material Make sure screw locations match screw holes on 201835 OWNER S MANUAL cabinet flange 25 000 BTU Hr Model Use a proper sized drill bit Drill holes through wall and into studs at marked locations 40 0
12. you are installing thermostat in a wall make sure there are no pipes or wiring in the hollow wall above the furnace The thermostat wires will pass through this wall from the attic Minimum Clearances Provide the following minimum clearances from furnace front cover to combustibles as viewed from the front of furnace see Figure 1 Below Front Cover 6 inches Above Front Cover 12 inches Adjoining Wall 12 inches Front 8 feet Ceiling 12 Minimum lt 12 Minimum Adjacent Side Wall 6 Minimum Finished Floor Carpet Tile etc Figure 1 Mounting Clearances as Viewed from Front of Furnace The clearance between the cabinet and the wall it passes through is 0 inches Provide the following minimum clearances from furnace cabinet portion of cabinet extending into outside air as viewed from the rear of furnace to obstructions Cabinet Back 36 inches Cabinet Sides 6 inches Cabinet Bottom Must be high enough off the ground to prevent snow water leaves orany other objects from block ing vents 201835 INSTALLATION Continued CREATING WALL OPENING AND MOUNTING FURNACE Remove furnace front cover Remove the two screws atthe loweredges of front cover Lift front cover away Installing in Normal Frame Wall The 25 000 BTU Hr model is designed to fit between two wall studs set at 16 inch on center The 40 000 BTU Hr model will not fit between wall studs Follow
13. your nearest Parts cs Black o Black Black Relay Brown 2 HN Central see below or call DESA lt Terminal Block Yell International s Parts Department at 1 800 wp Green l es 972 7879 Wh i o en calling DESA Interna White White Bi Orange 5 Open tional have ready J Red Blue e6 model number of your furnace Transformer Black p sy the replacement part number 370 VAC apacitor Black MFD hof White Brown as Valve White Brown Black Probe White Brown Black e White Motor fa X Note Wh Green ote f any of the original wire as supplied ite Glo Bar with this appliance must be replaced it must be replaced with a wire of at least a 105 C 150 C temperature rating or equivalent Label all wire prior to disconnection TGS 150 C 18 ga stranded teflon coated A White wire in cord set or ribbed wire in cord set TGS 150 C black Figure 21 Wiring Diagram 40 000 BTU Hr Model 201835 DYNAVENT DIRECT VENT NATURAL GAS HEATER SERVICE HINTS When Gas Pressure Is Too Low glo bar glows but burner will not ignite When Gas Quality Is Bad burner will not stay lit burner will produce flames and soot You may feel your gas pressure is too low or gas quality is bad If so contact your local gas supplier PARTS CENTRALS Howard Industries 8855 Washington Blvd Culver City CA 90232 310 837 9100 www howind com Victor Manufacturing 42 Rumsey Road E
14. 00 BTU Hr Model Use a proper sized drill bit On wall stud side of opening drill holes through wall and into studs at marked locations On other side drill holes through wall material 6 Insert furnace into opening Do this from inside the room Secure furnace to wall with four large screws provided 7 On outside of wall caulk opening be tween the cabinet and the rough edges of openingWall Studs p 14 1 4 Approx eR UN Approx Screw m qon Locations Ex M ocations Wall Opening 25 000 BTU Hr Model Wall Studs 20 5 16 ier i Screw Locations m Wall Opening 40 000 BTU Hr Model Figure 2 Wall Openings and Screw Locations Installing in Masonry Wall You can mount both models in a masonry wall Follow the steps below to install 1 Cut opening in wall Make opening 14 4 wide by 13 s high for 25 000 BTU Hr models Make opening 20 5 16 wide by 14 s high for 40 000 BTU Hr mod els IMPORTANT You must install furnace horizontally Do not install fur nace vertically 2 Securefurnace to wall with toggle bolts or hook bolts set in mortar 3 Insert furnace into opening Do this from inside the room Secure furnace to wall with toggle bolts or hook bolts 4 On outside of wall caulk opening be tween the cabinet and the rough edges of opening You can also use mortar to seal opening INSTALLING THERMOSTAT A WARNING Unplug furnace befor
15. 23 DYNAVENT DIRECT VENT NATURAL GAS HEATER IL LU ST R ATED This list contains replaceable parts used in your furnace When ordering parts follow the instructions listed under Replacement Parts on page 19 of this manual PARTS LIST COMBUSTION CHAMBER ASSEMBLY 40 000 BTU HR MODEL 19 C gt 14 LIT TT TT IITIN a Co MUTA TTNA eee 0N NER lt PART PART NUMBER DESCRIPTION NUMBER DESCRIPTION 121502 Screw 6 x 3 8 062563 Ignition Control Mounting 231950 Flame Sensing Probe Bracket 063018 Glo Bar Retainer 231954 Wire Harness and 120158 Screw 8 x 3 8 Ignition Control 030891 Burner Access Door 121357 Screw 6 x 5 8 121388 Screw 10 x 1 2 121224 Screw 10 x 3 4 310026 Glass Disc 070537 Gasket 290141 Cover Plate 121372 Screw 6 x 1 2 070398 Burner Access Door Gasket 231144 Terminal Block 100980 01 Glo Bar 230625 Time Delay Relay 070909 Glo Bar Gasket 231164 Transformer Assembly 230844 Bushing with Terminals 062837 Transformer and Relay 070607 Heat Shield Gasket Mounting Bracket 020982 Combustion Chamber Heat 062694 Wire Clamp 5 8 Diameter Shield Assembly 230555 Strain Relief Bushing 061663 Wire Clamp 090211 Junction Box Cover 121252 Screw 10 x 3 8 121577 Screw 10 x 1 4 230560 Limit Switch na amp g a2nmM NNAA NHN Standard hardware available at your local hardware s
16. 240 Front Cover Trim 160912 Thermostat 100892 Cabinet Assembly 070509 Cabinet Insulation right and left sides 121224 Screw 10 x 3 4 062242 Thermostat Mounting Plate 070542 Cabinet Insulation back 070508 Cabinet Insulation top 191244 Operating Instructions Decal English 191246 Operating Instructions Decal French 531010 Warning Decal 191262 Nameplate A Parts available not shown You must order nameplate and operating instructions decal separately Standard hardware can be picked up at local hardware store PRPBEBRBRPRPONDAARWN ee O 21 DYNAVENT DIRECT VENT NATURAL GAS HEATER IL LU ST R ATED This list contains replaceable parts used in your furnace When ordering parts follow the instructions listed under Replacement Parts on page 19 of this manual PARTS LIST CABINET ASSEMBLY 40 000 BTU HR MODEL PART NUMBER DESCRIPTION 280498 Bottom Shield 121520 Screw 8 x 3 8 191241 Front Cover Trim 030642 Front Cover Assembly 100896 Cabinet Assembly 070511 Cabinet Insulation right and left sides 120158 Screw 8 x 3 8 160912 Thermostat includes 2 screws 121224 Screw 10 x 3 4 062242 Thermostat Mounting Plate 070541 Cabinet Insulation back 070510 Cabinet Insulation top 191245 Operating Instructions Decal English 191247 Operating Instructions Decal French 531010 Warning Decal 191262 Nameplate A Parts available not shown You must or
17. 5 s 15 7 32 x 21 3 4 x 23 5 3 Weight pounds Furnace 53 71 Shipping 65 98 For purposes of input adjustment DYNAVENT DIRECT VENT NATURAL GAS HEATER INSTALLATION Mounting hardware needed to mount fur nace into wall is included with the furnace No venting material is needed You must furnish tools and all gas piping from the gas source to the furnace inlet A WARNING A qualified ser vice person must install furnace Have service person inspect fur nace before use and at least an nually Follow all local codes NOTICE This furnace must be electrically grounded Follow all local codes In the absence of local codes follow the National Electric Code ANS NFPA 70 U S or Canadian Electrical Code Part I CSA C22 1 Canada CHECK GAS TYPE Use only natural gas If your gas supply is not natural gas do not install furnace Call dealer where you bought furnace for proper type furnace INSTALLATION ITEMS Before installing furnace make sure you have all items below electric drill drill bits Phillips screwdriver hammer pipe wrench stud locator or small finishing nails equipment shutoff valve supplied test gauge connection see Figure 15 page 10 piping check local codes sealant resistant to propane LP gas ground joint union sediment trap tee joint LOCATING FURNACE This furnace is designed to be mounted in a wallthatis4 to 18 inches thic
18. DYNAVENT WINDOW WALL FURNACE DIRECT VENT NATURAL GAS HEATER OWNER S OPERATION AND INSTALLATION MANUAL DNV25NB DNV40NB CERTIFIED 25 000 and 40 000 BTU Hr B Model Furnaces WARNING If the information in these instructions is not followed exactly a fire or explosion may result causing property damage personal injury or loss of life FOR YOUR SAFETY Do not store or use gasoline or other flammable vapors and liquids in the vicinity of this or any other appliance FOR YOUR SAFETY 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 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 WARNING Improper in stallation adjustment alteration service or maintenance can cause injury or property dam age Refertothis manual for correct installation and operational proce dures Forassistance or additional information consult a qualified in staller service agency or the gas supplier Installation and ser vice mustbe performed by a qualified installer service agency or the gas supplier This appliance may be installed in an aftermarket permanently located manufac tured mobile home where not prohibited by local codes This appliance is only for use with the type of gas i
19. Hartford CT 06108 1164 NY NJ DE PA MD 1 800 243 9360 203 289 4223 Fax 1 800 274 2004 www fwwebb com Controlled Engineering 299 Roosevelt Road Glen Ellyn IL 60137 5618 630 469 7300 www controld com Portable Heater Parts 342 N Country Road 400E Valparaiso IN 46383 9704 1 800 362 6951 219 462 7441 www portableheaterparts com sales portableheaterparts com techservice portableheaterparts com FBD 1349 Adams Street Bowling Green KY 42103 3414 1 800 654 8534 270 846 1199 Fax 1 800 846 0090 franktalk aol com TECHNICAL SERVICE You may have further questions about in stallation operation 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 These Parts Centrals are privately owned businesses They have agreed to support our customer s needs by providing original replacement parts and accessories For certain parts some Parts Centrals may refer you to a dealer in your area When calling a Parts Central ask for the Parts Department Master Parts Dist 1251 Mound Ave NW Grand Rapids MI 49504 2672 1 800 446 1446 616 791 0505 Fax 616 791 8270 ww nbmc com Washer Equipment Co 1715 Main Street Kansas City MO 64108 2195 KS MO AR 816 842 3911 Controls Inc 6820 Glenwood Ave Raleigh NC 27612 7133 NC SC VA MD 1 800 334 5886 919 787 2242
20. RIPTION This list contains replaceable parts used in your furnace When ordering parts follow the instructions listed under Replacement Parts on page 19 of this manual 070570 121252 350088 390328 120717 121661 230681 121247 070537 120615 390205 121388 070420 390318 Combustion Air Cover Gasket Screw 10 x 3 8 Room Air Wheel CW Rotation Room Air Blower Housing left side Hex Nut 4410 24 keps Tinnerman Nut Microswitch Assembly Screw 2 56 x 5 8 Intake Tube Gasket Screw 8 x 1 2 Combustion Air Cover Assy Screw 10 x 1 2 Combustion Air Crossover Gasket Combustion Air and Motor Cover Assembly A Part available not shown Standard hardware available at your local hardware store wo po n m c 28 121227 070362 070406 120158 061663 231036 062691 231231 350087 231136 062307 070165 350085 390201 161093 Screw 10 24 x 1 2 Universal Bushing Combustion Air Housing Gasket Screw 8 x 3 8 Wire Clamp Capacitor Capacitor Clamp Capacitor Boot Room Air Wheel CCW Rotation Motor with Bushings Motor Support Bracket Motor Gasket Combustion Air Wheel Room Air Blower Housing right side Equipment Shutoff Valve 201835 OWNER S MANUAL NOTES 201835 29 WARRANTY INFORMATION KEEP THIS WARRANTY Model Serial No Date Purchased Always specify model and serial numbers when communic
21. Testing Furnace Gas Connections 1 Open equipment shutoff valve see Fig ure 16 2 Open main gas valve located on or near gas meter 3 Make sure control knob of furnace is in the OFF position 4 Check all joints from equipment shutoff valve to gas inlet pipe Apply mixture of liquid soap and water to gas joints Bubbles forming show a leak 5 Correct all leaks at once 6 Turn on furnace see Operating Fur nace pages 12 and 13 Check the rest of the internal joints for leaks 7 Turn off furnace see To Turn Off Gas to Furnace page 13 On Position Off Position Figure 16 Equipment Shutoff Valve 201835 OWNER S MANUAL CONNECTING TO ELECTRICAL SUPPLY IMPORTANT Follow all local codes when connecting electricity to furnace In the ab sence of local codes refer to the latest edi tion of the National Electrical Code ANS NFPA No 70 If you are not familiar with wiring codes have a qualified electrician do the wiring Itis best to plug furnace into a separate and permanent electrical line circuit 1 Supply a 120 volt 60 cycle grounded outlet at furnace location 2 The furnace has a three pronged grounded plug Use only a grounded three prong outlet IMPORTANT Some local codes require rigid or semi rigid conduit or metallic sheathe cable When using a semi rigid or metallic sheathe cable the installer must terminate the supply wire in the terminal box opening Performance Ch
22. act a quali fied service person to clean combustion chamber and main burner OUTSIDE VENT CAPS Inspect outside vent caps for obstructions or soot If soot is found do not use furnace Contact a qualified service person to clean furnace 201835 TROUBLESHOOTING Note For additional help visit DESA International s technical service website at www desatech com Note All troubleshooting items are listed in order of operation OBSERVED PROBLEM OWNER S MANUAL A WARNING Turn off and unplug furnace and let cool before servic ing Unless you need gas supply for testing shut off equipment shutoff valve before servicing Only a qualified service person should service and repair furnace POSSIBLE CAUSE REMEDY No heat 1 2 Gas supply 2 3 Electrical connections and power 4 Motor 5 Malfunctioning microswitch 5 6 Gas valve 6 201835 Thermostat off 1 UJ www desatech com 15 Check to be sure thermostat is calling for heat Wire to thermostat could be off terminal Be sure equipment gas valve is in the open posi tion level or parallel to gas line Be sure all electrical connections are secure Motor must be operating at top speed before burner will come on If blower is not operating at top speed check voltage supply minimum 100 volts A C If voltage supply is okay check for defective motor Be sure the microswitch is sailing in far enough to open th
23. ate will not turn by hand don t try to 10 Allow approximately 45 seconds for furnace with front cover removed repair it Call a qualified service tech ignition to occur When ignition oc Unsafe operation could result nician Force or attempted repair curs the glo bar will stay on for a may result in a fire or explosion short period of time The flame sens Do not use this appliance if any part ing probe will sense the burner flame A CAUTION Do not block cir has been under water Immediately and shutoff glo bar culating air openings in the lou call a qualified service technician to If ignition does not occur within 22 ver of the front cover This is inspect the appliance and to replace seconds the ignition control will at necessary for furnace to operate any part of the control system and tempt to light burner three times properly any gas control which has been un This will take about two minutes If der water ignition does not occur the ignition control will lock out the glo bar and he ae ie a alla i dust wil a OPERATING valve circuit Air in the gas line or a occur This odor will go away INSTRUCTIONS short gas interruption will prevent after a few hours of operation furnace front inining 1 This hap A WARNING Always follow pens turn thermostat off and wait 5 SEV Et minutes Turn the thermostat back FOR YOUR SAFETY NE is bris Pelea Ate Ic on The furnace will try to ignite READ BEFORE or Bulang torch i ii Apati LIGHTING 11 If
24. ating 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 DYNAVENT GAS WALL FURNACE DESA International warrants this product to be free from defects in materials and components for one 1 year and five 5 years on the combustion chamber heat exchanger assembly 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 under 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 only the cost of part s required to restore this furnace to proper operating condition 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 furnace 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 T
25. ces connected to the gas source including this furnace Divide this number by 1030 This will give you the approximate cubic feet per hour needed Example 40 000 BTU Hr 15 000 BTU Hr for other gas appliances 55 000 BTU Hr total 55 000 1030 53 4 Locate 53 4 or higher on chart below According to the chart below you should use 50 feet or less of 1 2 pipe 200 feet or less of 3 4 pipe etc LENGTH OF PIPE FEET 12000 IMPORTANT Check gas line pressure at gas meter before connecting furnace to gas line Gas line pressure must be no less than 5 inches of water and no greater than 7 inches of water Gas pressures and input to the burners must not exceed the rated input and pressure shown on the rating plate For natural gas manifold pressure should be 3 5 inches of water For elevations above 2000 feet reduce rating 4 for each 1000 feet above sea level U S A only 201835 9 Continued DYNAVENT DIRECT VENT NATURAL GAS HEATER INSTALLATION Continued Installation must include an equipment shutoff valve supplied ground jointunion plugged 1 8 NPT tap and a sediment trap Locate NPT tap within reach for test gauge hook up NPT tap must be upstream from furnace see Figure 15 Install an equipment shutoff valve in an accessible location The equipment shutoff valve is for turning on or shutting off the gas to the appliance Apply pipe joint sealant lightly to
26. ct your warranty coverage for 4 Box Time Delay igniion parts replaced under warranty 5 Black A o Black Black Relay Brown e3 rad g Terminal Block PARTS UNDER WARRANTY gt Green Orange elow e Contact authorized dealers of this product If AWhite White e5 cT j lyoriginalrepl v Bi ey can t supply original replacement part s Black v il e6 call DESA International s Technical Service NI Transformer Bown as Department at 1 800 323 5190 When call 370 VAC b ing DESA International have ready Capacitor e Black 5MF hA e your name Yelow Gas Valve Whie Probe your address White Black e model and serial number of your furnace White Black e White e how furnace was malfunctioning Motor Green i Note If any of the original wire as supplied e White Glo Bar typeofgasused propane LP or natural gas with this appliance must be replaced it must be replaced with a wire of at least a A purchase date 105 C 150 C temperature rating or equivalent x Label all wire prior to disconnection Usually we will ask you to return the defec A White wire in cord set or ribbed wire in cord set tive part to the factory TGS 150 C black Figure 20 Wiring Diagram 25 000 BTU Hr Model PARTS NOT UNDER uii WARRANTY Switch Sail Switch Thermostat e Contact authorized dealers of this product Junction pate ene ent Plack l di If they can t supply original replacement T Box Time Delay Green e2 Ignition part s either contact
27. der nameplate and operating instructions decal separately Standard hardware available at local hardware store eo xa gt SP HS SK SS AO PPP RPRPRPBAaOONOARWOND 22 201835 OWNER S MANUAL IL LU ST R ATED This list contains replaceable parts used in your furnace When ordering parts follow the instructions listed under Replacement Parts on page 19 of this manual PARTS LIST COMBUSTION CHAMBER ASSEMBLY 25 000 BTU HR MODEL E 19 Neg Tp r 8 DEA 22 27 A Ng 26 a D5 PART NUMBER DESCRIPTION f NUMBER DESCRIPTION 121357 Screw 6 x 5 8 020983 Combustion Chamber 231955 Wire Harness and Heat Shield Assembly Ignition Control 070606 Heat Shield Gasket 062461 Ignition Control Mounting 070398 Burner Access Door Gasket Bracket 290141 Cover Plate 310026 Glass Disc 030893 Burner Access Door 230844 Bushing with Terminals 231950 Flame Sensing Probe 121502 Screw 6 x 3 8 090211 Junction Box Cover 121388 Screw 10 x 1 2 063018 Glo Bar Retainer 100980 01 Glo Bar 070909 Glo Bar Gasket 121372 Screw 6 x 1 2 230625 Time Delay Relay 230218 Bushing 120158 Screw 8 x 3 8 230825 Limit Switch 231144 Terminal Block 121224 Screw 10 x 3 4 070537 Gasket 231143 Transformer Assembly 121252 Screw 10 x 3 8 oO n RH HS Do a a P Dnm Standard hardware available at your local hardware store 201835
28. e Providing Gas Piping to Furnace pages 9 and 10 for correct gas pipe in stallation 12 Check connections for gas leak A WARNING Never usean open flame to check for a leak Apply a mixture of liquid soap and water toalljoints Bubbles forming show a leak Correct all leaks at once 13 Caulk around pipe or nipple This pre vents cold air entering knockout hole Figure 9 Locations of Screws in Back of Furnace Cabinet 25 000 BTU Hr Mo Figure 10 Locations of Screws in Back of Furnace Cabinet 40 000 BTU Hr Model Furnace Cabinet Flange Figure 11 Removing Screws on Lower Flange 40 000 BTU Hr Model Shown Remove Screw 40 000 BTU Hr Model Only Gas Inlet Pipe Manifold Elbow Figure 12 Disconnecting Gas Inlet Pipe 40 000 BTU Hr Model Shown Knockout Plug Figure 13 Location of Knockout Plug 3 8 NPT Figure 14 Inserting Pipe through Knockout Hole 201835 OWNER S MANUAL INSTALLATION Continued Providing Gas Piping to Furnace You must provide gas piping from gas source to furnace The gas piping must be in a vertical position where it connects to the furnace This prevents interference with front cover installation Consult your local gas company for proper routing of the gas lines Pipe size is determined by the length of pipe from the gas source to the furnace and the total BTU load on the gas source Add the total BTUs required for all applian
29. e installing thermostat Mount the thermostat directly on the fur nace orona wallin another part of the room If you have solid or masonry walls mount the thermostat on the furnace Mounting Thermostat to Furnace 1 Unplug furnace 2 Locate red and white thermostat wires coming out of side of furnace These wires are labeled Thermostat 3 Cut thermostat wires to desired length Route thermostat wires through slot hole in side of thermostat mounting plate Then route wires through 5 8 diameter hole in center of plate see Figure 4 page 6 5 Connect thermostat wires to the two terminal screws on back of thermostat see Figure 3 Connect red wire to R terminal Connect white wire to W terminal White Wire Red Wire Figure 3 Connecting Thermostat Wires to Thermostat Continued DYNAVENT DIRECT VENT NATURAL GAS HEATER INSTALLATION Continued 6 Attach thermostat to thermostat mount ing plate with screws provided see Fig ure 4 IMPORTANT Note mounting plate position in Figure 4 Correctly position mounting plate for your model furnace Insert thermostat mounting plate be tween wall and cabinet flange Line up top notch on mounting plate with top screw on flange see Figure 5 IMPORTANT Thermostat for 25 000 BTU Hr model mounts on right side of furnace see Figure 5 Thermostat for 40 000 BTU Hr model mounts on left side of furnace see Figure 5
30. e solenoid valve and to energize the ignition control If the switch is not sailing in clean any dust or dirt from the actuator pin Other reasons for the switch not sailing in are A Insufficient blower speed Slow motor due to faulty motor or lint and dust accumulation on the blower wheels or restriction of return air to the furnace B Faulty microswitch Replace switch if cir cuit to ignition control is not completed when switch is manually engaged Switch should also be replaced if blower motor running at top speed fails to engage switch within six or seven seconds Note To service switch com bustion chamber must be pulled out Follow steps 1 2 3 9 and 10 on page 8 to remove combustion chamber Within 20 seconds after motor reaches 75 of its r p m and microswitch engages check the following A Voltage at valve If current is present but valve is not opening check wire connections B If wire connections okay Replace valve C No voltage at valve Check circuit completion through microswitch and limit switch as well as wiring and wire connections If no defects are found see Ignition Failures page 16 Continued DYNAVENT DIRECT VENT NATURAL GAS HEATER TROUBLESHOOTING Continued OBSERVED PROBLEM POSSIBLE CAUSE REMEDY No heat continued 7 Blower not operating 7 A Check power supply to furnace B Check electrical connections at furnace C With thermostat points closed check for cir 8 Short
31. eck Plug furnace into three pronged outlet If ignitor remains on after main burner igni tion or if the valve chatters you may have reversed polarity 1 Unplug furnace 2 Turn off electricity to outlet 3 Reverse 120 volt connections inside outlet Turn on electricity to outlet 5 Plugin furnace Ignitor should turn off after main burner ignites If ignitor does not turn off or if valve continues to chatter turn off furnace and unplug Call a qualified service person ATTACHING CABINET FRONT COVER A CAUTION Do not operate fur nace with front cover removed or mounted wrong If front cover is mounted wrong you cannot se cure it to cabinet with screws 1 Hook top of front cover over top cabi net flange 2 Securethe sides of front cover to lower sides of furnace cabinet with two screws provided see Figure 17 IMPORTANT You may have removed fur nace from furnace cabinet during installa tion You must correctly install furnace within cabinet If not front cover will not properly attach to cabinet Make sure gas kets for intake and exhaust tubes are in place Make sure intake and exhaust tubes extend into vent caps on cabinet back and are secured with screws Make sure you secured flange on bottom of furnaceto flange on bottom front of cabinet Figure 17 Attaching Front Cover to Cabinet DYNAVENT DIRECT VENT NATURAL GAS HEATER OPERATING 5 FURNACE
32. ective packaging ap plied to furnace for shipment 3 Remove the following items from carton Hardware package containing four large screws two small screws and thermostat mounting plate Hardware package thermostat and two screws Equipment shutoff valve If any of these items are missing promptly inform dealer where you bought furnace 4 Check furnace for any shipping damage If furnace is damaged promptly inform dealer where you bought furnace SPECIFICATIONS PRODUCT FEATURES HOT SURFACE IGNITOR This furnace has an electronic ignitor There is no standing pilot No matches or batteries are required THERMOSTATIC HEAT CONTROL The thermostat is temperature sensitive It automatically turns the furnace on and off This results in the greatest heating comfort This can also result in lower gas bills LIMIT SWITCH Thelimitswitch shuts offthe gas to the main burner if the furnace becomes too hot to operate safely DNV25NB DNV40NB Rated Heating Input BTU Hr 25 000 40 000 Thermal Output Capacity average loss calculation 18 750 Btu Hr 30 000 Btu Hr Type Gas Natural Only Natural Only Ignition Hot Surface Ignitor Hot Surface Ignitor Operating Amps 1 5 2 Volts Cycles 120 60 120 60 Main Burner 1 2 Pressure Regulator Setting 3 5 W C 3 5 W C Inlet Connection 3 8 NPT 3 8 NPT Inlet Gas Pressure in of water Maximum qe 7 Minimum 2 3 Dimensions Inches H x W x D Furnace 15 3 2 x 16 s x 23
33. eplace ignition control Check gas flow through burner If no gas is coming through burner check for obstruc tion in gas line main burner orifice or main burner If thermostat okay check for 24 volt A C circuit completion across yellow and orange wires at ignition control If no voltage check for circuit completion through limit switch and microswitch If voltage is present at ignition control across yellow and orange wires yet burner contin ues to go off replace ignition control If polarity is okay yet burner continues to go off check thermostat to be sure it is still com pleting the valve circuit If not check for excessive amp draw in valve circuit If thermostat okay check for 24 volt A C circuit completion across yellow and orange wires at ignition control If no voltage check for circuit completion through limit switch and microswitch Voltage present at ignition control across yellow and orange wires yet burner contin ues to go off replace ignition control Continued DYNAVENT DIRECT VENT NATURAL GAS HEATER TROUBLESHOOTING Continued OBSERVED PROBLEM POSSIBLE CAUSE REMEDY Ignition failures 5 Burner cycles off and glo bar comes on 5 A Check flame sensing probe Be sure immediately check the following C D probe is positioned in the burner flame and glowing cherry red Check wire and wire connections at probe and ignition control If wire and wire connectio
34. for use with other gases Use only natural gas Do not convert furnace to use different fuel type If you smell gas Shut off gas supply 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 instructions If you cannot reach your gas supplier call the fire department Do not block the flow of combustion air outside air or heated air room air to the furnace This furnace must have fresh air for proper operation If not poor fuel com bustion and improper venting of flue 2 10 11 12 13 14 15 gases will result Carbon monoxide poisoning from backed up flue gases could occur The State of California lists carbon monoxide as a reproduc tive toxin under Proposition 65 Never install the furnace in a recreational vehicle in an alcove on an inside wall as a fireplace insert in high traffic areas in windy or drafty areas behind a door or where an open door would block normal air flow Provide the following minimum fur nace clearances from furnace front cover to combustibles as viewed from the front of furnace Below Front Cover 6 inches Adjoining Wall 12 inches Above Front Cover 12 inches Front 8 feet Do not obstruct the flow of combus tion and ventilation air in any way Pro vide adequate clearances around air openings into the combu
35. ice person Furnace may need more frequent cleaning due to excessive lint from carpeting bedding material pet hair etc Ay CAUTION Label all wiring prior to disconnection when ser vicing controls Wiring errors can cause improper and dangerous operation Verify proper operation after ser vicing CABINET Air Passageways Use a vacuum cleaner or pressurized air to clean Exterior Use a soft cloth dampened with a mild soap and water mixture Wipe cabinet and front cover to remove dust Use a vacuum cleaner to remove dust from front cover louvers EXHAUST AND INTAKE VENTS Make sure the exhaust and intake vents are not blocked The intake combustion air and the exhaust gases must be expelled to the outside Have a qualified service person clean dirt and loose debris from vents annually GASKETS Inspect all gaskets If any gaskets show signs of leakage or damage replace them Safe operation of furnace depends on all gaskets being tight FRONT COVER Remove anything that may be blocking the air to the louvers of the front cover COMBUSTION CHAMBER AND MAIN BURNER Check flame pattern of main burner often see Inspecting Burner Flame page 13 Have combustion chamber and main burner cleaned if you have run the furnace with a high yellow flame Incomplete combustion from lack of air causes the yellow flame This deposits soot inside the combustion chamber and on the burner Cont
36. ing Correct all leaks at once WARNING Never use an open flame to check for a leak Apply a mixture of liquid soap and water to all joints 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 1 Disconnect appliance with its appliance main gas valve control valve and equipment shutoff valve from gas supply piping system Pressures in excess of 1 2 psig 3 5 kPa will damage heater regulator 2 Cap off open end of gas pipe where equipment shutoff valve was connected 3 Pressurize supply piping system by either using compressed air or opening main gas valve located on or near gas meter 4 Check all joints of gas supply piping system Apply mixture of liquid soap and water to gas joints Bubbles form ing show a leak 5 Correct all leaks at once 6 Reconnect furnace and equipment shutoff valve to gas supply Check re connected fittings for leaks 201835 INSTALLATION Continued Test Pressures Equal To or Less Than 1 2 PSIG 3 5 kPa l Closeequipment shutoff valve see Fig ure 16 2 Pressurize supply piping system by either using compressed air or opening main gas valve located on or near gas meter 3 Check all joints from gas meter to equipment shutoff valve Apply mix ture of liquid soap and water to gas joints Bubbles forming show a leak 4 Correct all leaks at once Pressure
37. k You can also mount furnace in a window AX WARNING Do not install tur naceininterior wall of building You must install furnace in exterior wall of building Rear of furnace must extend into open outside air This lets poisonous exhaust gases ven tilate to the outdoors AX WARNING Turn off electrical circuits that pass through the wall where you are going to install the furnace AX WARNING Maintain the mini mum clearances shown in Figure 1 Ifyou can provide greater clear ances from floor ceiling and joining wall Ay WARNING Due to high tem peratures never install the furnace inan inside wall inarecreation vehicle inawindowrecessedinathick wall creating an alcove inan alcove behind a door or where an open door wouldblock normalairflow as a fireplace insert e in high traffic areas near furniture or draperies e in windy or drafty areas A CAUTION If you install the furnace in a home garage locate furnace where moving vehicle will not hit it Forconvenience and efficiency install furnace where there is easy access for operation inspection and service in a central location near an electrical outlet e where there is adequate clearance around vents outside Before installing furnace inspect the wall floor and outside areas Make sure there are nopipes wiring or anything else that would interfere with furnace installation If
38. march Park Quincy MA 02269 Available from Standards Council of Canada 350 Sparks Street Ottawa Ontario KIR 7S8 This furnace must be grounded when in stalled Follow all local codes In the ab sence of local codes refer to the National Electrical Code ANS NFPA No 70 U S A or CSA C22 1 Canadian Electrical Code Part I Canada The installation must conform with local codes in the absence of local codes with the National Fuel Gas Code ANS Z223 1 Ca nadian Installation Code CAN CGA B 149 When installing furnace in a manufactured mobile home follow the Manufactured Home Construction and Safety Standard Title 24CFR Part 3280 formerly the Fed eral Standard for Mobile Home Construc tion and Safety Title 24 part 280 1975 When such a standard is not applicable followthe Standardfor Manufactured Home Installations 1982 Manufactured Home Sites Communities and Set Ups ANS A225 I NFPA 501A In Canada install furnace in accordance with Standard CSA Z240 4 Gas Equipped Recre ational Vehicles and Mobile Housing and any applicable local codes and regulations Appliance input ratings are based on sea level operation and need not be changed for operation up to 2 000 feet elevation For operation at elevations above 2 000 feet manufactured to specified deration condi tions for Canada and the United States 201835 OWNER S MANUAL UNPACKING 1 Remove furnace from carton 2 Remove all prot
39. mber The combus tion air blower then forces the combus tion products out of the exhaust tube s The Combustion air blower is sealed so that air does not pass between it and the circulating room air blower 3 When the blower motor reaches 75 of normal r p m three to five seconds air from the blower turns on the 13 microswitch When the microswitch activates the electrical circuit is com pleted through the limit switch to the control module The glo bar begins to glow In about 15 seconds the glo bar becomes hot enough to ignite the burner 4 Another 24 volt circuit is completed through the module to the main gas valve The valve opens Gas passes through the valve to the main burner The gas is ignited by the glo bar 5 Afterthe main burner ignites the flame detector senses the presence of flame This opens the circuit to the glo bar The glo bar shuts down 6 The circulating room air blower pulls return air in from the living area This air is heated as it flows past the com bustion chamber The heated air is then blown out into the room 7 Whentheroom temperature rises above the thermostat setting the circuit to the valve opens and the burner shuts off 8 Theblower continues to run about two to three minutes until the time delay relay coil cools When the coil cools the circuit to the motor opens The blower shuts off LIMIT SWITCH A WARNING Do not operate furnace without a properly work i
40. ndicated 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 DYNAVENT DIRECT VENT NATURAL GAS HEATER SAFETY INFORMATION A WARNINGS IMPORTANT Read this owner s manual carefully and completely before trying to assemble operate or service this furnace Improper use of this furnace can cause seri ous injury or death from burns fire explosion electrical shock and carbon monoxide poisoning AX DANGER Carbon monoxide poisoning may lead to death Carbon Monoxide Poisoning Early signs of carbon monoxide poisoning resemble the flu with headaches dizziness and or nausea If you have these signs the furnace may not be working properly Get fresh air at once Have furnace serviced Some people are more af fected by carbon monoxide than others These include pregnant women people with heart or lung disease or anemia those under the influ ence 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 Surface offurnace becomes very hot when running furnace Keep children and adults away from hot surface to avoid burns or clothi
41. ng ignition Furnace will re main hot for a time after shut down Allow surface to cool be fore touching Turn off furnace and unplug and let cool before servicing Unless you need gas supply for testing shut off equipment shutoff valve before servicing Only a qualified service person should service and repair furnace and venting system Replace any safety screen or guard removed for servicing be fore operating furnace You must keep control compart ments burners and circulating air passages clean More frequent cleaning may be needed due to excessive lint and dust from car peting bedding material etc Turn offthe gas valve andunplug before cleaning furnace A qualified service person must install furnace Make certain you read and understand all warn ings Keep this manual for reference It is your guidetosafe and proper operation of this furnace A WARNING Any change to this heater or its controls can be dangerous Due to high temperatures the appliance should be located out of traffic and away from furniture and draperies Carefully supervise young chil dren when they are in the same room with furnace 5 Do not place clothing or other flammable material on or near 6 the appliance Never place any objects on the furnace This appliance is only for use with the type of gas indicated on the rating plate This appliance is not convertible
42. ng limit switch The limit switch will turn off the gas to the main burner if the furnace becomes too hot When this happens the main burner will go out and the blower will continue to run for two to three minutes This usually happens when circulating air is partially or com pletely blocked Occasional cycling of the limit switch is not bad This indicates safe operation Limit switch cycling will most likely occur on warm days If this happens too often or for a long period of time the circulating air system should be thoroughly cleaned by a qualified service person If the circulating air system is cleaned and the limit switch continues to shut down the furnace the limit switch is defective A defective limit switch cannot be repaired It must be replaced For safety reasons never operate the furnace without a limit switch DYNAVENT DIRECT VENT NATURAL GAS HEATER CLEANING AND MAINTENANCE Ay WARNING Turn off and un plug furnace and let cool before cleaning Turn equipment shutoff valve to OFF position Only a qualified service person should service and repair furnace A WARNING Keep furnace clear and free from combustible mate rials gasoline and other flam mable vapors and liquids A CAUTION You must keep control areas burner and circu lating air passageways of furnace clean Inspect these areas of fur nace before each use Have fur nace inspected yearly by a quali fied serv
43. ns okay check for voltage across brown and orange wires at ignition control If no voltage replace ignition control If voltage present check wiring and wire connections at valve If wire and wire connections okay replace valve Excessive noise 1 Blower out of balance 2 Motor hums 1 Replace blower 2 Replace motor Main burner will not cycle off 1 Thermostat setting 2 Gas valve stuck open 1 Check thermostat 2 Check gas valve If stuck open replace Do not attempt to repair valve Furnace will not operate 1 Wiring connections or shorts www desatech com 18 1 Check all wiring to assure proper con nection or detect possible shorts 201835 WIRING DIAGR AMS git Sail Switch OWNER S MANUAL REPLACEMENT PARTS Rey REOS ite Red p Black eel Note Use only original replacement parts Junction i J resh This will prote
44. ravel diagnostic cost labor transportation and any and all such other costs related to repairing a defective furnace 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 ONE 1 YEAR FROM THE DATE OF FIRST PURCHASE AND DESA INTERNATIONAL 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 DES A INTERNATIONAL 2701 Industrial Drive P O Box 90004 Bowling Green KY 42102 9004 M Il ll m 201835 201835 Rev F NOT A UPC 03 00
45. rectly The electronic system is made up of two parts the ignition control and the glo bar The ignition control is the brain of the elec tronic system It has several functions 1 When the blower reaches full r p m a 24 volt circuit is completed to the ig nition control Check across yellow and orange wires 2 The red and blue wires at the ignition control are the 120 volt input for the glo bar circuit When the 24 volt cir cuit is completed the ignition control will complete the 120 volt circuit to the glo bar and it begins to glow Check this circuit across the two white wires at the ignition control 3 After approximately 20 seconds a 24 volt circuit is completed through the ig nition control to the gas valve This cir cuit is checked from brown wire at ig www desatech com 16 nition control to a neutral ground This circuit opens the valve gas flows to the burner and is ignited by the heat from the glo bar Note Glo bar remains on 4 When the burner flame is established the sensing probe will sense the pres ence of burner flame and open the glo bar circuit The glo bar will then stop glowing It is important to determine the type of problem being experienced Then the proper checkout procedure can be made The fol lowing is a list of problems how to identify in which area the problem is located and how to correct it 201835 OWNER S MANUAL TROUBLESHOOTING Continued
46. s This gas is commonly known as wellhead gas A WARNING Unplug furnace before connecting to gas supply A CAUTION Use only new black iron or steel pipe Copper tubing may be acceptable in cer tain areas Check local codes Use pipe large enough in diam eter to allow proper gas volume to furnace If pipe is too small undue loss of pressure will oc cur Refer to chart on page 9 A CAUTION Lightly apply pipe joint sealant to male threads be fore connecting Use pipe joint sealant that is resistant to liquid petroleum LP gas All piping must comply with local codes and ordinances or with the National Fuel Gas Code ANS Z223 1 NFPA No 54 whichever applies You can connect furnace to gas supply at front of furnace inside or at rear of furnace outside Connecting Furnace to Gas Supply at Front of Furnace 1 Locate gas inlet pipe on lower right front of furnace see Figure 8 2 Connect 3 8 NPT pipe or nipple to gas inlet pipe see Figure 8 See Provid ing Gas Piping to Furnace pages 9 and 10 for correct gas pipe installation Gas Inlet Pipe 3 8 NPT Pipe or Nipple Figure 8 Connecting Gas from Inside of Room Continued DYNAVENT DIRECT VENT NATURAL GAS HEATER INSTALLATION Continued Connecting Furnace to Gas Supply at Rear of Furnace 1 10 Remove the two screws in back of fur nace cabinet located by the exhaust vent s see Figures 9 and 10
47. stion chamber along with adequate accessibility clear ance for servicing and proper operation Provide the following minimum furnace clearances from furnace cabinet portion of cabinet extending into outside air as viewed from the rear of furnace Cabinet Back 36 inches Cabinet Sides 6 inches Cabinet Bottom Must be high enough off the ground to prevent snow water leaves or any other objects from block ing cabinet vents Always follow lighting instructions Never attempt to light burner with a match or butane torch Do not run furnace where flammable liquids or vapors are used or stored under dusty conditions Do not use furnace as a cooking device Do not alter furnace or its controls Any change may create a safety hazard Do not use furnace if any part has been under water Immediately call a quali fied service person to inspect the fur nace and to replace any part of the con trol system and any gas control which has been under water 201835 LOCAL CODES Install and use furnace with care Follow all local codes In the absence of local codes use the latest edition of the following National Fuel Gas Code ANS Z223 1 also known as NFPA 54 USA National Electric Code ANS NFPA 70 e CAN CGA B149 1 or 2 Installation Codes Canada Available from American National Standards Institute Inc 1430 Broadway New York NY 10018 National Fire Protection Association Inc Battery
48. tore 24 201835 OWNER S MANUAL IL LU ST R ATED This list contains replaceable parts used in your furnace When ordering parts follow the instructions listed under Replacement Parts on page 19 of this manual PARTS LIST BURNER ASSEMBLY 25 000 BTU HR MODEL PART NUMBER DESCRIPTION 120717 Hex Nut 4410 24 121459 Screw 10 24 x 1 2 010701 Burner Assembly 180220 Main Burner Orifice 121388 Screw 10 x 1 2 070408 Manifold Gasket 171174 Manifold Assembly 170545 Reducer Fitting 3 8 NPT to 1 8 NPT 160968 Valve 170012 90 Street Elbow 171170 Gas Inlet Pipe 170082 90 Elbow n nnn sm rnP Standard hardware available at your local hardware store 201835 25 DYNAVENT DIRECT VENT NATURAL GAS HEATER IL LU ST R ATED This list contains replaceable parts used in your furnace When ordering parts follow the instructions listed under Replacement Parts on page 19 of this manual PARTS LIST BURNER ASSEMBLY 40 000 BTU HR MODEL PART NUMBER DESCRIPTION 120717 Hex Nut 10 24 010621 Left Burner Assembly 010623 Right Burner Assembly 070591 Manifold Gasket 171167 Manifold Assembly 180189 Main Burner Orifice 121388 Screw 10 x 1 2 160968 Valve 170012 90 Street Elbow 171170 Gas Inlet Pipe 121388 Screw 10 x 1 2 062694 Gas Inlet Pipe Clamp 170082 90 Elbow Ss A OM H HH s Standard hardware available at your local hardware
49. urchase enough thermostat wire to go from the furnace to the thermostat location Do not cut and splice this wire The thermostat wire must be unbroken Routing Thermostat Cable All wiring must meet local codes The fol lowing instructions cover routing the wire through the attic You can run wiring from a basement or crawl space 1 2 Unplug furnace Before drilling hole in wall drive a small finishing nail through ceiling directly above thermostat location Pull nail out and push a small stiff wire through hole This helps you locate thermostat mount ing location when in attic In attic locate stiff wire Drill 1 2 hole in center of ceiling wall plate next to stiff wire Remove wire Probe through drilled hole in wall plate with a stiff wire to make sure there are no pipes wiring or anything else blocking the way for thermostat wires If you find blockage choose new loca tion for thermostat Drill a 1 2 hole through the wall at thermostat mounting location From attic feed thermostat wires through hole in ceiling plate until wires reach thermostat location Make a small hook with a piece of stiff wire Run wire hook through 1 2 hole in wall Hook thermostat wires Pull wires through hole in wall Make sure 6 of wires stick out Drive a small finishing nail in ceiling above furnace 25 000 BTU Hr Model Drive nail above right side of furnace 40 000 BTU Hr Model Drive nail above left side of f
50. urnace Pull nail out and push a small stiff wire through hole This helps you locate wire routing location when in attic Repeat steps 3 and 4 above 201835 INSTALLATION Continued 10 Feed thermostat wires from attic to furnace through 1 2 hole in ceiling wall plate 11 Connect thermostat wires from attic to thermostat wires on furnace Connect red wires together then connect white wires together Use wire nuts to make connections IMPORTANT Make sure thermostat wires do not touch combus tion chamber Mounting the Thermostat to Wall 1 Connect thermostat wires to the two terminal screws on back of thermostat see Figure 6 Connect red wire to R terminal Connect white wire to W terminal 2 Pushanyexcess wire back through hole in wall and plug hole with insulation to prevent drafts Drafts affect the ther mostat operation 3 Usethermostat base to mark mounting screw locations 4 Drill proper sized holes for wall anchors 5 Attach thermostat to wall using screws provided see Figure 7 White Wire Red Wire b Figure 6 Connecting Thermostat Wires to Thermostat 201835 OWNER S MANUAL Wall Qe Anchors Figure 7 Mounting Thermostat to Wall CONNECTING TO GAS SUPPLY A WARNING A qualified ser vice person must connect fur nace to gas supply Follow all local codes A WARNING Never connect furnace to private non utility gas well
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