Desa 10542 manual

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A good user manual

The rules should oblige the seller to give the purchaser an operating instrucion of Desa 10542, along with an item. The lack of an instruction or false information given to customer shall constitute grounds to apply for a complaint because of nonconformity of goods with the contract. In accordance with the law, a customer can receive an instruction in non-paper form; lately graphic and electronic forms of the manuals, as well as instructional videos have been majorly used. A necessary precondition for this is the unmistakable, legible character of an instruction.

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First and foremost, an user manual of Desa 10542 should contain:
- informations concerning technical data of Desa 10542
- name of the manufacturer and a year of construction of the Desa 10542 item
- rules of operation, control and maintenance of the Desa 10542 item
- safety signs and mark certificates which confirm compatibility with appropriate standards

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Usually it results from the lack of time and certainty about functionalities of purchased items. Unfortunately, networking and start-up of Desa 10542 alone are not enough. An instruction contains a number of clues concerning respective functionalities, safety rules, maintenance methods (what means should be used), eventual defects of Desa 10542, and methods of problem resolution. Eventually, when one still can't find the answer to his problems, he will be directed to the Desa service. Lately animated manuals and instructional videos are quite popular among customers. These kinds of user manuals are effective; they assure that a customer will familiarize himself with the whole material, and won't skip complicated, technical information of Desa 10542.

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Table of contents for the manual

  • Page 1

    Save this manual for future reference. For more information, visit www.desatech.com WARNING: If the information in this manual is not followed exactly, a fire or explosion may result causing property damage, personal injury, or loss of life. — Do not store or use gasoline or other flammable vapors and liquids in the vicinity of this or any other [...]

  • Page 2

    www.desatech.com 113680-01A 2 WARNING: Improper installation, adjustment, altera- tion, service, or maintenance can cause injury or prop- erty damage. Refer to this manual for correct installation and operational procedures. For assistance or addi- tional information consult a qualified installer, service agency, or the gas supplier. WARNING: This [...]

  • Page 3

    www.desatech.com 113680-01A 3 SAFETY INFORMATION IMPORTANT: Read this owner’s manual carefully and completely before trying to assemble, oper- ate, or service this heater. Im- proper use of this heater can cause serious injury or death from burns, fire, explosion, elec- trical shock, and carbon mon- oxide poisoning. DANGER: Carbon monoxide poison[...]

  • Page 4

    www.desatech.com 113680-01A 4 6. Keep all air openings in front and bottom of heater clear and free of debris. This will in- sure enough air for proper combustion. 7. If heater shuts off, do not relight until you pro- vide fresh, outside air . If heater keeps shut- ting off, have it serviced. 8. Do not run heater • where flammable liquids or vapo[...]

  • Page 5

    www.desatech.com 113680-01A 5 AIR FOR COMBUSTION AND VENTILATION WARNING: This heater shall not be installed in a confined space or unusually tight con- struction unless provisions are provided for adequate combus- tion and ventilation air. Read the following instructions to in- sure proper fresh air for this and other fuel-burning appli- ances in [...]

  • Page 6

    www.desatech.com 113680-01A 6 AIR FOR COMBUSTION AND VENTILATION 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 con- fined or unconfined space. Space: Includes the room in which you will install heater plus any adjoining rooms with doorle[...]

  • Page 7

    www.desatech.com 113680-01A 7 Figure 3 - Ventilation Air from Outdoors VENTILATION AIR Ventilation Air From Inside Building This fresh air would come from an adjoining un- confined space. When ventilating to an adjoining unconfined space, you must provide two perma- nent openings: one within 12" of the ceiling and one within 12" of the fl[...]

  • Page 8

    www.desatech.com 113680-01A 8 INSTALLATION ITEMS Before installing heater , make sure you have the items listed below . • for propane/LP gas, external regulator (supplied by installer) • piping (check local codes) • sealant (resistant to propane/LP gas) • equipment shutof f valve * • ground joint union • sediment trap • tee joint • [...]

  • Page 9

    www.desatech.com 113680-01A 9 INSTALLATION Continued THERMOSTAT SENSING BULB (Thermostat Models Only) The thermostat sensing bulb has been placed be- low the heater . 1. Place clamp on thermostat sensing bulb as shown in Figure 5. Clamp is provided in hard- ware package. 2. Snap clamp into upper mounting hole as shown in Figure 5. Mounting hole is [...]

  • Page 10

    www.desatech.com 113680-01A 10 18 3 / 4 " Min. 12 1 / 2 " Min. 13" 18 3 / 4 " Min. 9" Min. Adjoining Wall 13" Adjoining Wall Only Insert Mounting Screws Through Last Hole On Each End Only Insert Mounting Screws Through Last Hole On Each End Floor Floor 9" 20 1 / 2 " Min. 7 1 / 2 " Min. Adjoining Wall Onl[...]

  • Page 11

    www.desatech.com 113680-01A 11 Figure 12 - Installing Bottom Mounting Screws Side View Front View Wall Spacer Heater Installing Bottom Mounting Screws 1. Locate two bottom mounting holes. These holes are near bottom on back panel of heater (see Figure 12). 2. Mark screw locations on wall. 3. Remove heater from mounting bracket. 4. If installing bot[...]

  • Page 12

    www.desatech.com 113680-01A 12 CONNECTING TO GAS SUPPLY WARNING: This appliance requires a 3/8" NPT (National Pipe Thread) inlet connection to the pressure regulator. WARNING: A qualified ser- vice person must connect heater to gas supply. Follow all local codes. WARNING: For natural gas, never connect heater to private (non-utility) gas wells[...]

  • Page 13

    www.desatech.com 113680-01A 13 CHECKING GAS CONNECTIONS WARNING: Test all gas pip- ing and connections, internal and external to unit, for leaks after installing or servicing. Cor- rect all leaks at once. WARNING: Never use an open flame to check for a leak. Apply a noncorrosive leak de- tection fluid to all joints. Bubbles forming show a leak. Cor[...]

  • Page 14

    www.desatech.com 113680-01A 14 Figure 18 - Checking Gas Joints for Propane/LP Gas Equipment Shutoff Valve Propane/LP Supply Tank Figure 17 - Checking Gas Joints for Natural Gas Equipment Shutoff Valve Gas Meter INSTALLATION Continued Test Pressures Equal To or Less Than 1/2 PSIG (3.5 kPa) 1. Close equipment shutoff valve (see Figure 16). 2. Pressur[...]

  • Page 15

    www.desatech.com 113680-01A 15 5. Press in control knob and turn counter - clockwise to the PILOT position. Keep control knob pressed in for five (5) seconds (see Figure 19). Note: Y ou may be running this heater for the first time after hooking up to gas sup- ply . If so, the control knob may need to be pressed in for 30 seconds or more. This will[...]

  • Page 16

    www.desatech.com 113680-01A 16 OPERATING HEATER Continued WHA T T O DO IF YOU SMELL GAS • Do not try to light any appliance. • Do not touch any electric switch; do not use any phone in your building. • Immediately call your gas supplier fr om a neighbor’s phone. Follow the gas supplier’s instructions. • If you cannot reach your gas supp[...]

  • Page 17

    www.desatech.com 113680-01A 17 Figure 22 - Pilot (actual pilot may vary) 6. With control knob pr essed in, push down and release ignitor button. This will light pilot. The pilot is attached to the front of the burner . If needed, keep pressing igni- tor button until pilot lights. Note: If pilot does not stay lit, refer to T roubleshooting, page 20.[...]

  • Page 18

    www.desatech.com 113680-01A 18 BURNER FLAME PATTERN WARNING: If yellow tipping occurs, your heater could pro- duce increased levels of carbon monoxide. NOTICE: Do not mistake orange flames with yellow tipping. Dirt or other fine particles enter the heater and burn causing brief patches of orange flame. Figure 25 shows a correct burner flame pattern[...]

  • Page 19

    www.desatech.com 113680-01A 19 CLEANING AND MAINTENANCE WARNING: Turn off heater and let cool before cleaning. CAUTION: You must keep control areas, burner, and cir- culating air passageways of heater clean. Inspect these ar- eas of heater before each use. Have heater inspected yearly by a qualified service person. Heater may need more frequent cle[...]

  • Page 20

    www.desatech.com 113680-01A 20 TROUBLESHOOTING WARNING: Turn off and unplug heater and let cool before servic- ing. 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. Note: All troubleshooting items are listed in order of operatio[...]

  • Page 21

    www.desatech.com 113680-01A 21 OBSERVED PROBLEM ODS/pilot lights but flame goes out when control knob is released Burner does not light after ODS/ pilot is lit Delayed ignition of burner Burner backfiring during com- bustion REMEDY 1. Press in control knob fully 2 . After ODS/pilot lights, keep con- trol knob pressed in 30 seconds 3. W ait one minu[...]

  • Page 22

    www.desatech.com 113680-01A 22 TROUBLESHOOTING Continued OBSERVED PROBLEM Yellow flame during burner com- bustion Slight smoke or odor during ini- tial operation Heater produces a whistling noise when burner is lit White powder residue forming within burner box or on adjacent walls or furniture POSSIBLE CAUSE 1. Not enough air 2. Gas regulator defe[...]

  • Page 23

    www.desatech.com 113680-01A 23 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 supplier’s instructions. • If you cannot reach your gas supplier,[...]

  • Page 24

    www.desatech.com 113680-01A 24 SPECIFICATIONS 10548 10546 10542/10544 Btu (V ariable) 15,000/30,000 10,000/20,000 5,000/10,000 T ype Gas Natural Natural Natural Ignition Piezo Piezo Piezo Pressure Regulator Setting 3" W .C. 3" W .C. 3" W .C. Inlet Gas Pressure (in. of water) Maximum 10.5" 10.5" 10.5" Minimum 4" 4&[...]

  • Page 25

    www.desatech.com 113680-01A 25 SERVICE HINTS When Gas Pressure Is Too Low • pilot will not stay lit • burner will have delayed ignition • heater will not produce specified heat • propane/LP gas supply may be low Y ou may feel your gas pressure is too low . If so, contact your local natural or propane/LP gas supplier . TECHNICAL SERVICE Y ou[...]

  • Page 26

    www.desatech.com 113680-01A 26 2 25 4 3 5 22 10 11 1 26 9 24 16 6 8 19 27 28 15 21 17 7 20 18 14 13 12 23 ILLUSTRATED PARTS BREAKDOWN 10,000 BTU/HR MANUAL CONTROL MODELS 10542 AND 10543 19-1 19-2 19-1 19-2[...]

  • Page 27

    www.desatech.com 113680-01A 27 PARTS LIST 10,000 BTU/HR MANUAL CONTROL MODELS This list contains replaceable parts used in your heater . When ordering parts, follow the instructions listed under Replacement Parts on page 25 of this manual. PART NUMBER KEY 10542 10543 NO. Manual NG Manual LP DESCRIPTION QTY. 1 114422-01 114422-01 Front Panel/Deflect[...]

  • Page 28

    www.desatech.com 113680-01A 28 ILLUSTRATED PARTS BREAKDOWN 10,000, 20,000, AND 30,000 BTU/HR TERMOSTAT MODELS 10544, 10545, 10546, 10547, 10548 AND 10549 3 7 6 4 1 11 5 24 27 10 22 19 26 17 8 21 9 13 20 18 14 16 15 2 23 12 25 19-1 19-2 19-1 19-2[...]

  • Page 29

    www.desatech.com 113680-01A 29 PARTS LIST 10,000, 20,000, AND 30,000 BTU/HR TERMOSTAT MODELS This list contains replaceable parts used in your heater . When ordering parts, follow the instructions listed under Replacement Parts on page 25 of this manual. PART NUMBER KEY 10544(10NG) 10546(20NG) 10548(30NG) NO. 10545(10LP) 10547(20LP) 10549(30LP) DES[...]

  • Page 30

    www.desatech.com 113680-01A 30 ACCESSORIES Purchase these heater accessories from your local dealer . If they can not supply these accessories, ei- ther contact your nearest Parts Central (see page 31) or call DESA Heating Products at 1-866-672-6040 for referral information. Y ou can also write to the address listed on the back page of this manual.[...]

  • Page 31

    www.desatech.com 113680-01A 31 Tool & Equipment Company 1348 Dixwell A venue Hamden, CT 06514-0322 1-800-397-7553 203-248-7553 Parts Department Portable Heater Parts 342 N. County Rd. 400 East V alparaiso, IN 46383-9704 All States 219-462-7441 1-888-619-7060 sales@portableheaterparts.com techservice@portableheaterparts.com FBD 1349 Adams Street[...]

  • Page 32

    Always specify model and serial numbers when communicating with the factory . W e reserve the right to amend these specifications at any time without notice. The only warranty applicable is our standard written warranty . W e make no other warranty , expressed or implied. 113680-01 Rev. A 06/04 2701 Industrial Drive P.O. Box 90004 Bowling Green, KY[...]