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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. VENT -FREE NA TURAL GAS FREEST ANDING PEDEST AL STOVE SYSTEM OWNER’S OPERATION AND INSTALLATION MANUAL Save this manual for future reference. Save this manual for future reference. For more information, visit www.desatec[...]
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107434-01C For more information, visit www.desatech.com For more information, visit www.desatech.com 2 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, operate, or ser- vice this heater. Improper use of thi[...]
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107434-01C For more information, visit www.desatech.com For more information, visit www.desatech.com 3 3 1. 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. 2. If you smell gas • shut off gas supply • do not try to light any appliance • do not touch [...]
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107434-01C For more information, visit www.desatech.com For more information, visit www.desatech.com 4 Today’s homes are built more energy efficient 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 [...]
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107434-01C For more information, visit www.desatech.com For more information, visit www.desatech.com 5 5 AIR FOR COMBUSTION AND VENTILA TION Continued DETERMINING FRESH-AIR FLOW FOR HEATER LOCATION Determining if You Have a Confined or Unconfined Space Use this work sheet to determine if you have a confined or unconfined space. Space: Includes the [...]
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107434-01C For more information, visit www.desatech.com For more information, visit www.desatech.com 6 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 spac[...]
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107434-01C For more information, visit www.desatech.com For more information, visit www.desatech.com 7 7 IMPORTANT: Vent-free heaters add moisture to the air. Although this is beneficial, installing heater in rooms without enough venti- lation air may cause mildew to form from too much moisture. See Air for Combustion and Ventilation , pages 4 thro[...]
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107434-01C For more information, visit www.desatech.com For more information, visit www.desatech.com 8 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 piping and connections for leaks after installing or servi[...]
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107434-01C For more information, visit www.desatech.com For more information, visit www.desatech.com 9 9 INST ALLA TION Continued Test Pressures Equal To or Less Than 1/2 PSIG (3.5 kPa) 1. Close equipment shutoff valve (see Figure 7). 2. Pressurize supply piping system by either using compressed air or opening main gas valve located on or near gas [...]
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107434-01C For more information, visit www.desatech.com For more information, visit www.desatech.com 10 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 INST ALLA TION Continued Figure 11 - Removing Stove Top Panel Figure 14 - Removing Blower Brackets from Stove and[...]
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107434-01C For more information, visit www.desatech.com For more information, visit www.desatech.com 11 11 13. Using the four screws previously removed, mount blower as- sembly to stove by reattaching blower brackets to rear panel (see Figure 14, page 10). Tighten screws securely . 14. Install plastic control knob onto output shaft of speed control[...]
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107434-01C For more information, visit www.desatech.com For more information, visit www.desatech.com 12 INST ALLA TION Continued Figure 18 - Attaching Wire Harness to Thermostatic Switch and Cover Assembly Thermostatic Switch Mounted to Cover Wire Harness Lower Hole Figure 17 - Removing Cover Plate Cover Plate Firebox Back Panel Screws 5. Disconnec[...]
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107434-01C For more information, visit www.desatech.com For more information, visit www.desatech.com 13 13 1. STOP! Read the safety inf ormation, above. 2. Make sur e equipment shutoff valve is fully open. 3. T urn contr ol knob clockwise Clockwise to the OFF position. 4. W ait fiv e (5) minutes to clear out any gas. Then smell for gas, including n[...]
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107434-01C For more information, visit www.desatech.com For more information, visit www.desatech.com 14 Figure 22 - Pilot 6. With contr ol knob pressed in, pr ess and release ignitor b ut- ton. This will light pilot. The pilot is attached to the front bur ner . If needed, keep pressing ignitor b utton until pilot lights. Note: If pilot does not sta[...]
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107434-01C For more information, visit www.desatech.com For more information, visit www.desatech.com 15 15 BURNER FLAME PATTERN Figure 25 shows a correct burner flame pattern. Figure 26 shows an incorrect burner flame pattern. If burner flame pattern is incorrect, • turn heater off (see T o T urn Off Gas to Appliance, page 14) • see T r oublesh[...]
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107434-01C For more information, visit www.desatech.com For more information, visit www.desatech.com 16 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. W ipe the cabinet to remove dust. LOGS • If you remove logs for cleaning, refer to Installi[...]
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107434-01C For more information, visit www.desatech.com For more information, visit www.desatech.com 17 17 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.[...]
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107434-01C For more information, visit www.desatech.com For more information, visit www.desatech.com 18 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 prod[...]
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107434-01C For more information, visit www.desatech.com For more information, visit www.desatech.com 19 19 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[...]
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107434-01C For more information, visit www.desatech.com For more information, visit www.desatech.com 20 ILLUSTRA TED P ARTS BREAKDOWN S39NT 7 6 9 4 10 3 2 1 14 5 12 11 10 8 13 ILLUSTRATED PARTS BREAKDOWN S39NT[...]
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107434-01C For more information, visit www.desatech.com For more information, visit www.desatech.com 21 21 P ARTS 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 2 104[...]
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107434-01C For more information, visit www.desatech.com For more information, visit www.desatech.com 22 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 ILLUSTRATED PARTS BREAKDOWN S39NT Stove Body[...]
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107434-01C For more information, visit www.desatech.com For more information, visit www.desatech.com 23 23 P ARTS 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[...]
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107434-01C For more information, visit www.desatech.com For more information, visit www.desatech.com 24 REPLACEMENT P ARTS 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[...]
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107434-01C For more information, visit www.desatech.com For more information, visit www.desatech.com 25 25 • ACCESSORIES 1. Where will the product be used? ❍ Living/Family Room ❍ Office/W arehouse ❍ Utility Shed/Outbuilding ❍ Garage ❍ Bedroom ❍ Bathroom ❍ Other 2. If you bought this product yourself, did you plan to purchase this ty[...]
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107434-01C For more information, visit www.desatech.com For more information, visit www.desatech.com 26 2701 Industrial Drive P.O. Box 90004 Bowling Green, KY 42102-9004 TM Postage Required[...]
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107434-01C For more information, visit www.desatech.com For more information, visit www.desatech.com 27 27 P ARTS CENTRALS These Parts Centrals are privately owned businesses. They have agreed to support our customer’s needs by providing original replacement parts and accessories. Baltimore Electric 1348 Dixwell Avenue Hamden, CT 06514-0322 1-800[...]
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107434-01C For more information, visit www.desatech.com For more information, visit www.desatech.com 28 2701 Industrial Drive P.O. Box 90004 Bowling Green, KY 42102-9004 www.desatech.com TM 107434-01 Rev. C 05/02 LIMITED WARRANTY VENT-FREE NATURAL GAS PEDESTAL STOVE DESA International warrants this product to be free from defects in materials and c[...]