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Desa AT Series manual

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Table of contents for the manual

  • Page 1

    Save this manual for future reference. Save this manual for future reference. For more information, visit www.desatech.com For more information, visit www.desatech.com PROP ANE/LP CONSTRUCTION HEA TER OWNER’S MANUAL Heater Size: 375,000 Btu/Hr - A T Series GENERAL HAZARD WARNING: FAILURE TO COMPLY WITH THE PRECAUTIONS AND INSTRUCTIONS PROVIDED WI[...]

  • Page 2

    103018 2 For more information, visit www.desatech.com For more information, visit www.desatech.com Propane/LP Gas: Propane/LP gas is odorless. An odor-making agent is added to propane/LP gas. The odor helps you detect a propane/LP gas leak. However, the odor added to propane/LP gas can fade. Propane/LP gas may be present even though no odor exists.[...]

  • Page 3

    103018 3 3 For more information, visit www.desatech.com For more information, visit www.desatech.com • Do not use heater in living or sleeping quarters. • Keep appliance area clear and free from combustible materi- als, gasoline, paint thinner , and other flammable vapors and liquids. Dust is combustible. Do not use heater in areas with high du[...]

  • Page 4

    103018 4 For more information, visit www.desatech.com For more information, visit www.desatech.com Air For Combustion Air For Heating THEOR Y OF OPERA TION The Fuel System: The hose/regulator assembly attaches to the propane gas supply. The propane gas moves through the solenoid valve and out the nozzle. The Air System: The motor turns the fan. The[...]

  • Page 5

    103018 5 5 For more information, visit www.desatech.com For more information, visit www.desatech.com INSTALLATION OPERATION To Start Heater To Stop Heater WARNING: Do not adjust regulator below 7 psig or above 20 psig. Heater may not run properly. 4. Open propane/LP supply valve on propane/LP tank(s) slowly . Note: If not opened slowly , excess-flo[...]

  • Page 6

    103018 6 For more information, visit www.desatech.com For more information, visit www.desatech.com OPERATION To Restart Heater STORAGE MAINTENANCE SERVICE PROCEDURE Cleaning Fan TO RESTART HEATER If safety control stops gas flow to heater, motor will continue to run. To restart heater: 1. T urn on/off switch to the OFF position. 2. W ait ten second[...]

  • Page 7

    103018 7 7 For more information, visit www.desatech.com For more information, visit www.desatech.com SERVICE PROCEDURE Cleaning Fan (Cont.) 8. T urn motor and fan around. Place motor and fan into shell backwards. Note: Motor will go into shell first (see Figure 8). 9. Line up rear mounting holes in shell with first hole on each side of motor mount [...]

  • Page 8

    103018 8 For more information, visit www.desatech.com For more information, visit www.desatech.com WIRING DIAGRAMS SPECIFICATIONS WIRING DIAGRAMS Green Green Solenoid Valve Motor On/Off Switch Green Power Cord T Blue Blue Black White DSI Control Orange Ignitor Thermal Switch Orange Terminal Board White White Black Black Blue Connector Blue Connecto[...]

  • Page 9

    103018 9 9 For more information, visit www.desatech.com For more information, visit www.desatech.com ACCESSORIES TECHNICAL SERVICE SERVICE PUBLICATIONS REPLACEMENT PARTS ACCESSORIES Purchase accessories and parts from your nearest dealer or service center. If your dealer or service center can not supply an accessory or part, either contact your nea[...]

  • Page 10

    103018 10 For more information, visit www.desatech.com For more information, visit www.desatech.com ILLUSTRATED PARTS BREAKDOWN ILLUSTRA TED P ARTS BREAKDOWN BLP375AT SBLP375AT Note: Screws are standard hardware items 2 21 1 4 27 18 3 8 9 10 11 22 17 23 29 16 15 19 20 7 14 12 13 6 5 33 32 30 26 31 25 24[...]

  • Page 11

    103018 11 11 For more information, visit www.desatech.com For more information, visit www.desatech.com PARTS LIST P ARTS LIST BLP375AT SBLP375AT This list contains replaceable parts used in your heater. When ordering parts, follow the instructions listed under Replacement Parts on page 9 of this manual. * No Longer Available KEY PART NO. NUMBER DES[...]

  • Page 12

    103018 12 For more information, visit www.desatech.com For more information, visit www.desatech.com DESA International warrants this product and any parts thereof, to be free from defects in materials and workmanship for one (1) year from the date of first purchase when operated and maintained in accordance with instructions. This warranty is exten[...]