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107884

For more information, visit www.desatech.com

For more information, visit www.desatech.com

24

SPECIFICATIONS

SPECIFICATIONS
REPLACEMENT PARTS
SERVICE HINTS
TECHNICAL SERVICE
SERVICE PUBLICATIONS

WMN20

GN30, GN30T

GWN20

GWN30T

GWN20T

Btu (Variable)

15,000/30,000

10,000/20,000

Type 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 x W x D)

Heater

24 

1

/

4

 x 25 

3

/

4

 x 7

24 

1

/

4

 x 18 

1

/

4

 x 7

Carton

26 

3

/

8

 x 28 

1

/

8

 x 10

26 

3

/

8

 x 20 

7

/

8

 x 10

Weight (pounds)

Heater

28

20

Shipping

33

25

WMP20

GP30, GP30T

GWP20

GWP30T

GWP20T

Btu (Variable)

15,000/30,000

10,000/20,000

Type Gas

Propane/LP Only

Propane/LP Only

Ignition

Piezo

Piezo

Pressure Regulator Setting

8" W.C.

8" W.C.

Inlet Gas Pressure (in. of water)

Maximum

14"

14"

Minimum

11"

11"

Dimensions, Inches (H x W x D)

Heater (Includes knobs & grill)

24 

1

/

4

 x 25 

3

/

4

 x 7

24 

1

/

4

 x 18 

1

/

4

 x 7

Carton

26 

3

/

8

 x 28 

1

/

8

 x 10

26 

3

/

8

 x 20 

7

/

8

 x 10

Weight (pounds)

Heater

28

20

Shipping

33

25

REPLACEMENT
PARTS

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), call
DESA International’s Technical Service Depart-
ment at 1-866-672-6040.

When calling DESA International, have ready

• your name

• your address

• model and serial numbers of your heater

• how heater was malfunctioning

• type of gas used (propane/LP or natural gas)

• purchase date

Usually, we will ask you to return the part to the
factory.

PARTS NOT UNDER WARRANTY

Contact authorized dealers of this product. If they
can’t supply original replacement part(s), either
contact your nearest Parts Central (see page 27) or
call DESA International at 1-866-672-6040 for
referral information.

When calling DESA International, have ready

• model number of your heater

• the replacement part number

TECHNICAL SERVICE

You may have further questions about installation, operation, or
troubleshooting. If so, contact DESA International’s Technical
Service Department at 1-866-672-6040. When calling please have
your model and serial numbers of your heater ready.

You can also visit DESA International’s technical service web site
at 

www.desatech.com.

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

You may feel your gas pressure is too low. If so, contact your local
natural or propane/LP gas supplier.

SERVICE PUBLICATIONS

You can purchase a service manual from the address listed on the
back page of this manual. Send a check for $5.00 payable to DESA
International.

Содержание WMN20

Страница 1: ...e injury or property damage Refer to this manualforcorrectinstallationand operational procedures For as sistanceoradditionalinformation consult a qualified installer ser vice agency or the gas supplie...

Страница 2: ...terials gasoline and other flammable vapors and liquids WARNING Do not use any accessory not ap proved for use with this heater Carbon Monoxide Poisoning Early signs of carbon monoxide poisoning resem...

Страница 3: ...ace any part of the control system and any gas control which has been under water 11 Turn off and let cool before servicing Only a qualified service person should service and repair heater 12 Operatin...

Страница 4: ...ion un lessprovisionsareprovidedforadequatecombustion and ventilation air Read the following instructions to insure proper fresh air for this and other fuel burning appliances in your home Unusually t...

Страница 5: ...ion air from the outdoors and vents to the outdoors Example Gas water heater _____________ Btu Hr Vent free heater _____________ Btu Hr Total _____________ Btu Hr WARNING If the area in which the heat...

Страница 6: ...Provide extra fresh air by using ventilation grills or ducts You must provide two permanent openings one within 12 of the ceiling and one within 12 of the floor Connect these items directly to the ou...

Страница 7: ...moke aromatic candles cleaning fluids oil or kerosene lamps etc in the air exist may discolor walls or cause odors WARNING Never install the heater in a bedroom or bathroom in a recreational vehicle w...

Страница 8: ...sensing bulb is pointing up Methods For Attaching Mounting Bracket To Wall Only use last hole on each end of mounting bracket to attach bracket to wall These two holes are 14 inches apart from their c...

Страница 9: ...ing bracket onto wall Line up last hole on each end of bracket with holes drilled in wall Figure 9 Folding Anchor Figure 10 Popping Open Anchor Wings For Thin Walls Figure 11 Mounting Heater Onto Moun...

Страница 10: ...screws until heater is firmly secured to wall Do not over tighten Note Do not replace front panel at this time Replace front panel after making gas connections and checking for leaks see pages 11 and...

Страница 11: ...ipe is too small undue loss of volume will occur Install sediment trap in supply line as shown in Figure 15 Locate sediment trap where it is within reach for cleaning Locate sediment trap where trappe...

Страница 12: ...k Correct all leaks at once CAUTION For propane LP gas make sure exter nal regulator has been installed between propane LP supply and heater See guidelines under Connecting to Gas Supply page 10 Press...

Страница 13: ...Ignitor Button Control Knob CAUTION Do not try to adjust heating levels by using the equipment shutoff valve Figure 20 Pilot actual pilot may vary MANUAL CONTROL MODELS 1 STOP Read the safety informat...

Страница 14: ...attached to the frontofburner Thepilotisattachedtothefrontoftheburner If needed keep pressing ignitor button until pilot lights Note If pilot does not stay lit refer to Troubleshooting pages 17 throu...

Страница 15: ...The thermostat used on this heater senses the room temperature The thermostat adjusts the amount of gas flow to the burner This increases or decreases the burner flameheight Attimestheroommayexceedth...

Страница 16: ...nd dirt in the pilot assembly There is a small pilot air inlet about two inches from where the pilot flame comes out of the pilot assembly see Figure 27 With the unit off lightly blow air through the...

Страница 17: ...logged ODS pilot 7 Thermocouple damaged 8 Control valve damaged REMEDY 1 Replace pilot assembly 2 Replace pilot assembly 3 Reconnect ignitor cable 4 Free ignitor cable if pinched by any metal or tubin...

Страница 18: ...ace gas regulator 3 Clean burner see Cleaning and Main tenance page 16 1 Problem will stop after a few hours of operation 1 Turn control knob to LO position and let warm up for a minute 2 Operate burn...

Страница 19: ...ter produces a clicking ticking noise just after burner is lit or shut off Heater produces unwanted odors Heater shuts off in use ODS operates Gas odor even when control knob is in OFF position Gas od...

Страница 20: ...satech com For more information visit www desatech com 20 ILLUSTRATED PARTS BREAKDOWN GN30 GP30 GWN20 GWP20 WMN20 WMP20 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 BRE...

Страница 21: ...098249 01 098249 01 098249 01 Nut M5 2 11 107667 01 107667 02 107667 01 107667 02 ODS Pilot Assembly 1 110186 01 110186 01 110186 01 110186 01 Thermocouple Kit 1 12 103447 01 103447 01 103446 01 10344...

Страница 22: ...ch com For more information visit www desatech com 22 ILLUSTRATED PARTS BREAKDOWN 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 ILLUSTRATED PARTS BREAKD...

Страница 23: ...1 098249 01 098249 01 098249 01 098249 01 098249 01 Nut M5 2 11 107667 01 107667 02 107667 01 107667 02 107667 01 107667 02 ODS Pilot Assembly 1 110186 01 110186 01 110186 01 110186 01 110186 01 11018...

Страница 24: ...ement part s call DESA International s Technical Service Depart ment at 1 866 672 6040 When calling DESA International have ready your name your address model and serial numbers of your heater how hea...

Страница 25: ...d College Completed Graduate School 13 Age of Purchaser Under 20 20 29 30 39 40 49 50 59 60 or Over 14 Buyer s total annual household income Under 15 000 15 000 to 19 999 20 000 to 34 999 35 000 to 49...

Страница 26: ...107884 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 Postage Required TM...

Страница 27: ...timore Electric 1348 Dixwell Avenue Hamden CT 06514 0322 1 800 397 7553 203 248 7553 Parts Department Portable Heater Parts 342 N County Rd 400 East Valparaiso IN 46383 9704 All States 219 462 7441 1...

Страница 28: ...tory replacement parts voids this warranty The heater MUST be installed by a qualified installer in accordance with all local codes and instructions furnished with the unit This warranty does not appl...

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