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Desa Tech S39NT - page 1
OWNER’S OPERA TION AND INST ALLA TION MANUAL VENT -FREE NA TURAL GAS FREEST ANDING PEDEST AL STOVE SYSTEM S39NT 20,000 to 39,000 Btu/Hr Thermostaticall y- Contr olled O F F P I L O T O N H I L O Save this manual for future reference. WARNING: If the information in this manual is not followed exactly, a fire or explosion may result caus- ing prope ...
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Desa Tech S39NT - page 2
2 107434 VENT -FREE NA TURAL GAS PEDEST AL STOVE For more information, visit www.desatech.com DANGER: Carbon monoxide poisoning may lead to death! SAFETY INFORMA TION WARNING ICON G 001 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 heate ...
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Desa Tech S39NT - page 3
3 107434 OWNER’S MANUAL For more information, visit www.desatech.com O F F P I L O T O N H I L O PRODUCT IDENTIFICA TION LOCAL CODES Install and use heater with care. Follow all local codes. In the absence of local codes, use the latest edition of The National Fuel Gas Code, ANSI Z223.1/ NFPA 54 *. *Available from: American National Standards Ins ...
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Desa Tech S39NT - page 4
4 107434 VENT -FREE NA TURAL GAS PEDEST AL STOVE For more information, visit www.desatech.com Today’s homes are built more energy effi- cient than ever. New materials, increased insulation, and new construction methods help reduce heat loss in homes. Home owners weather strip and caulk around windows and doors to keep the cold air out and the war ...
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Desa Tech S39NT - page 5
5 107434 OWNER’S MANUAL For more information, visit www.desatech.com 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 pass ...
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Desa Tech S39NT - page 6
6 107434 VENT -FREE NA TURAL GAS PEDEST AL STOVE For more information, visit www.desatech.com AIR FOR COMBUSTION AND VENTILA TION Continued Figure 3 - Ventilation Air from Outdoors Figure 2 - Ventilation Air from Inside Building VENTILATION AIR Ventilation Air From Inside Building This fresh air would come from an adjoining unconfined space. When v ...
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Desa Tech S39NT - page 7
7 107434 OWNER’S MANUAL For more information, visit www.desatech.com WARNING: Never install the heater • in a bedroom or bathroom • in a recreational vehicle • where curtains, furniture, clothing, or other flammable objects are less than 42 inches from the front, top, or sides of the heater • in high traffic areas • in windy or drafty a ...
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Desa Tech S39NT - page 8
8 107434 VENT -FREE NA TURAL GAS PEDEST AL STOVE For more information, visit www.desatech.com Tee Joint Pipe Nipple Cap 3" Minimum Sediment Trap Gas Regulator of Heater From Gas Meter (5" W.C.** to 10.5" W.C. Pressure) CSA Design-Certified Equipment Shutoff Valve With 1/8" NPT Tap* Approved Flexible Gas Hose (if allowed by local ...
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Desa Tech S39NT - page 9
9 107434 OWNER’S MANUAL For more information, visit www.desatech.com INST ALLA TION Continued WARNING: Never use an open flame to check for a leak. Apply a noncorrosive leak detection fluid to all joints. Bubbles forming show a leak. Correct all leaks at once. WARNING: Test all gas pip- ing and connections for leaks after installing or servicing. ...
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Desa Tech S39NT - page 10
10 107434 VENT -FREE NA TURAL GAS PEDEST AL STOVE For more information, visit www.desatech.com Black Powercord Wire Figure 13 - Removing Wires from Blower Screw Green Ground Wire White Powercord Wire O F F P I L O T O N H I L O WARNING: Failure to position the parts in accordance with these diagrams or failure to use only parts specifically approve ...
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Desa Tech S39NT - page 11
11 107434 OWNER’S MANUAL For more information, visit www.desatech.com INSTALLING OPTIONAL BLOWER ACCESSORY GA3650TA Tools required: Phillips screwdriver NOTICE: Shut off gas heater during the following blower installation. 1. Remove 2 screws from rear tabs on top trim. Pull trim forward to remove (see Figure 1 1, page 10). 2. Remove three screws ...
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Desa Tech S39NT - page 12
12 107434 VENT -FREE NA TURAL GAS PEDEST AL STOVE For more information, visit www.desatech.com Red Variable Fan Switch Fan Switch (N.O.) Green White On 110/115 V.A.C. Blower Motor Black Off 1 2 Black Blue INST ALLA TION Continued 1 1. Remove three screws and cover plate from center of firebox back panel. Keep screws but discard cover plate (see Fig ...
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Desa Tech S39NT - page 13
13 107434 OWNER’S MANUAL For more information, visit www.desatech.com Figure 21 - Control Knob and Ignitor Button Location 1. STOP! Read the saf ety inf ormation, column 2. 2. Make sure equipment shutoff v alve is fully open. 3. T ur n contr ol knob clockwise Clockwise to the OFF position. 4. W ait fi ve (5) minutes to clear out any gas. Then sme ...
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Desa Tech S39NT - page 14
14 107434 VENT -FREE NA TURAL GAS PEDEST AL STOVE For more information, visit www.desatech.com Figure 22 - Pilot 7. Keep contr ol knob pressed in for 30 seconds after lighting pilot. After 30 seconds, release contr ol knob . • If control knob does not pop out when released, contact a qualif ied service person or gas supplier f or repairs. Note: I ...
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Desa Tech S39NT - page 15
15 107434 OWNER’S MANUAL For more information, visit www.desatech.com CLEANING AND MAINTENANCE WARNING: Turn off heater and let cool before cleaning. CAUTION: You must keep con- trol areas, burner, and circulating air passageways of heater clean. Inspect these areas of heater be- fore each use. Have heater in- spected yearly by a qualified ser- v ...
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Desa Tech S39NT - page 16
16 107434 VENT -FREE NA TURAL GAS PEDEST AL STOVE For more information, visit www.desatech.com TROUBLESHOOTING WARNING: Turn off heater and let cool before servicing. Only a qualified service person should service and repair heater. CAUTION: Never use a wire, needle, or similar object to clean ODS/pilot. This can damage ODS/ pilot unit. POSSIBLE CA ...
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Desa Tech S39NT - page 17
17 107434 OWNER’S MANUAL For more information, visit www.desatech.com TROUBLESHOOTING Continued OBSERVED PROBLEM Burner does not light after ODS/pilot is lit Delayed ignition burner Burner backfiring during combustion Slight smoke or odor during initial operation Moisture/condensation noticed on windows Heater produces a whistling noise when burn ...
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Desa Tech S39NT - page 18
18 107434 VENT -FREE NA TURAL GAS PEDEST AL STOVE For more information, visit www.desatech.com WARNING: 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 sup ...
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Desa Tech S39NT - page 19
19 107434 OWNER’S MANUAL For more information, visit www.desatech.com TECHNICAL SER VICE You may have further questions about in- stallation, operation, or troubleshooting. If so, contact DESA International’s Techni- cal Service Department at 1-800-DESA LOG (1-800-337-2564). You can also visit DESA International’s technical services web site ...
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Desa Tech S39NT - page 20
20 107434 VENT -FREE NA TURAL GAS PEDEST AL STOVE For more information, visit www.desatech.com ILLUSTRA TED PA R T S BREAKDOWN S39NT 7 6 9 4 10 3 2 1 14 5 12 11 10 8 13 ...
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Desa Tech S39NT - page 21
21 107434 OWNER’S MANUAL For more information, visit www.desatech.com P AR TS LIST S39NT This list contains replaceable parts used in your heater. When ordering parts, follow the instructions listed under Replacement Parts on page 24 of this manual. KEY PART NO. NUMBER DESCRIPTION QTY. 1 107433-02 Log Set 1 2 104285-01 ODS Pilot (NG) 1 3 098249-0 ...
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Desa Tech S39NT - page 22
22 107434 VENT -FREE NA TURAL GAS PEDEST AL STOVE For more information, visit www.desatech.com ILLUSTRA TED PA R T S BREAKDOWN S39NT 1 10 4 13 3 2 14 7 16 15 11 18 20 5 6 9 8 17 12 23 21 19 19 26 26 22 22 21 25 24 ...
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Desa Tech S39NT - page 23
23 107434 OWNER’S MANUAL For more information, visit www.desatech.com P AR TS LIST S39NT This list contains replaceable parts used in your heater. When ordering parts, follow the instructions listed under Replacement Parts on page 24 of this manual. KEY NO. PART NO. DESCRIPTION QTY. 1 107085-01CK Top Panel, Stove 1 2 107077-01CK Pedestal Stove As ...
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Desa Tech S39NT - page 24
24 107434 VENT -FREE NA TURAL GAS PEDEST AL STOVE For more information, visit www.desatech.com REPLACEMENT PA R T S Note: Use only original replacement parts. This will protect your warranty coverage for parts replaced under warranty. PARTS UNDER WARRANTY Contact authorized dealers of this product. If they can’t supply original replacement part(s ...
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Desa Tech S39NT - page 25
25 107434 OWNER’S MANUAL For more information, visit www.desatech.com NOTES _______________________________________________________________________________________________ _______________________________________________________________________________________________ ________________________________________________________________________________ ...
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Desa Tech S39NT - page 26
2701 Industrial Drive P.O. Box 90004 Bowling Green, KY 42102-9004 www.desatech.com INTERNA TIONAL 107434-01 Rev. B 06/01 LIMITED WARRANTY VENT-FREE NATURAL GAS PEDESTAL STOVE DESA International warrants this product to be free from defects in materials and components for two (2) years from the date of first purchase, provided that the product has b ...
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