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Desa GWP30T manual

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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 107884-01H 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 107884-01H 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 107884-01H 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 107884-01H 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 107884-01H 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 107884-01H 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 107884-01H 8 INSTALLATION ITEMS Before installing heater , make sure you hav e the items listed below . • for propane/LP gas, external re gulator (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 107884-01H 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 107884-01H 10 INSTALLATION Continued 30,000 Btu/Hr Models 20,000 Btu/Hr Models Figure 8 - Mounting Bracket Clearances Attaching Mounting Bracket To Wall Note: W all anchors, mounting screws, and spac- ers are in hardware package. The hardw are pack- age is provided with heater . Attaching To Wall Stud Method For attaching mounting [...]

  • Page 11

    www.desatech.com 107884-01H 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 107884-01H 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 107884-01H 13 * A CSA design-certified equipment shutof f valv e with 1/8" NPT tap is an acceptable alternative to test gauge connection. Purchase the optional CSA design-certified equipment shutof f valve from y our dealer . See Accessories , page 30. CHECKING GAS CONNECTIONS WARNING: Test all gas pip- ing and connections, in[...]

  • Page 14

    www.desatech.com 107884-01H 14 2. Pressurize supply piping system by either opening propane/LP supply tank valve for propane/LP gas or opening main gas valve lo- cated on or near gas meter for natural gas, or using compressed air . 3. Check all joints from gas meter for natural gas (see Figure 17) or propane/LP supply tank for propane/LP gas, to eq[...]

  • Page 15

    www.desatech.com 107884-01H 15 5. Press in control knob and turn counter - clockwise to the PILO T position. Keep contr ol knob pressed in for f ive (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 contr ol knob may need to be pressed in f or 30 seconds or more. T hi[...]

  • Page 16

    www.desatech.com 107884-01H 16 OPERATING HEATER Continued WHA T TO DO IF YOU SMELL GAS • Do not try to light any appliance. • Do not touch any electric switch; do not use any phone in y our building. • Immediately call your gas supplier from a neighbor’ s phone. Follow the gas supplier’ s instructions. • If you cannot reac h your gas su[...]

  • Page 17

    www.desatech.com 107884-01H 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 burner . The pilot is attached to the front of the burner . If needed, keep pressing igni- tor button until pilot lights. Note: If pilot does no[...]

  • Page 18

    www.desatech.com 107884-01H 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 107884-01H 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 107884-01H 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 107884-01H 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 107884-01H 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 107884-01H 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 107884-01H 24 SPECIFICATIONS GN30, GN30T WMN20, GWN20 GWN30T GWN20T Btu (V ariable) 15,000/30,000 10,000/20,000 T ype Gas Natural Only Natural Only Ignition Piezo Piezo Pressure Regulator Setting 3" W .C. 3" W .C. Inlet Gas Pressure (in. of water) Maximum 10.5" 10.5" Minimum 4" 4" Dimensions, Inches (H[...]

  • Page 25

    www.desatech.com 107884-01H 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 107884-01H 26 2 3 5 6 8 9 9 10 11 12 13 14 16 18 19 4 7 1 21 22 15 17 20 ILLUSTRATED PARTS BREAKDOWN MODELS GN30, GP30 GWN20, GWP20 WMN20, WMP20[...]

  • Page 27

    www.desatech.com 107884-01H 27 PARTS LIST This list contains replaceable parts used in your heater . When ordering parts, follo w the instructions listed under Replacement Parts on page 25 of this manual. PART NUMBER FOR KEY GWN20 GWP20 NO. GN30 GP30 WMN20 WMP20 DESCRIPTION QTY. 1 097159-04 097159- 04 097159-04 097159-04 Piezo Ignitor 1 2 107676-01[...]

  • Page 28

    www.desatech.com 107884-01H 28 ILLUSTRATED PARTS BREAKDOWN MODELS GN30T, GP30T GWN20T, GWP20T GWN30T, GWP30T 2 3 5 6 8 9 10 10 11 12 13 14 16 18 19 4 7 1 15 17 20[...]

  • Page 29

    www.desatech.com 107884-01H 29 PARTS LIST This list contains replaceable parts used in your heater . When ordering parts, follo w the instructions listed under Replacement Parts on page 25 of this manual. PART NUMBER FOR KEY GN30T GWN20T GWN30T NO. GP30T GWP20T GWP30T DESCRIPTION QTY. 1 097159-04 097159-04 097159-04 Piezo Ignitor 1 2 107676-01 1076[...]

  • Page 30

    www.desatech.com 107884-01H 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 107884-01H 31 Baltimore Electric 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 Bowling G[...]

  • Page 32

    Always specify model and serial numbers when communicating with the f actory . 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. 107884-01 Rev. H 03/04 2701 Industrial Drive P.O. Box 90004 Bowling Green, K[...]