Desa GN30 Safety Information And Installation Manual
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Desa GN30 Safety Information And Installation Manual

Desa unvented blue flame gas heater owner's manual
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For more information, visit www.desatech.com
For more information, visit www.desatech.com
GN30, GP30
GN30T, GP30T
GWN20, GWP20
GWN20T, GWP20T
GWN30T, GWP30T
WMN20, WMP20
WARNING: If the information in this manual is not
followed exactly, a fire or explosion may result caus-
ing 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 appliance.
— WHAT TO DO IF YOU SMELL GAS
• 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 in-
structions.
• If you cannot reach your gas supplier, call the fire
department.
— Installation and service must be performed by a
qualified installer, service agency, or the gas
supplier.
This appliance may be installed in an aftermarket*, permanently located, manufactured
(mobile) home, where not prohibited by local codes.
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.
*Aftermarket: Completion of sale, not for purpose of resale, from the manufacturer
Save this manual for future reference.
Save this manual for future reference.
UNVENTED (VENT-FREE)
BLUE FLAME GAS HEATER
TM
SAFETY INFORMATION AND INSTALLATION MANUAL
WARNING: Improper installation,
adjustment, alteration, service, or
maintenance can cause injury or
property damage. Refer to this
manual for correct installation and
operational procedures. For as-
sistance or additional information
consult a qualified installer, ser-
vice agency, or the gas supplier.
WARNING: This is an unvented
gas-fired heater. It uses air (oxy-
gen) from the room in which it is
installed. Provisions for ad-
equate combustion and ventila-
tion air must be provided. Refer
to Air for Combustion and Venti-
lation section on page 4 of this
manual.

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  • Page 1 For more information, visit www.desatech.com For more information, visit www.desatech.com GN30, GP30 GN30T, GP30T GWN20, GWP20 GWN20T, GWP20T GWN30T, GWP30T WMN20, WMP20 WARNING: If the information in this manual is not followed exactly, a fire or explosion may result caus- ing property damage, personal injury, or loss of life.

  • Page 2: Table Of Contents

    TABLE OF CONTENTS SAFETY INFORMATION TABLE OF CONTENTS SAFETY INFORMATION ... 2 LOCAL CODES ... 3 PRODUCT IDENTIFICATION ... 3 UNPACKING ... 3 PRODUCT FEATURES ... 3 AIR FOR COMBUSTION AND VENTILATION ... 4 INSTALLATION ... 7 OPERATING HEATER ... 13 INSPECTING HEATER ...

  • Page 3: Safety Information

    PRODUCT IDENTIFICATION Ignitor Button Front Panel Figure 1 - Vent-Free Gas Heater UNPACKING 1. Remove heater from carton. Remove all protective packaging applied to heater for shipment. 3. Check heater for any shipping damage. If heater is damaged, promptly inform dealer where you bought heater.

  • Page 4: Air For Combustion And Ventilation

    AIR FOR COMBUSTION AND VENTILATION Providing Adequate Ventilation AIR FOR COMBUSTION AND VENTILATION WARNING: This heater shall not be installed in a confined space or unusually tight construction un- less provisions are provided for adequate combustion and ventilation air. Read the following instructions to insure proper fresh air for this and other fuel-burning appliances in your home.

  • Page 5: Determining Fresh-Air Flow For Heater Location

    Add the Btu/Hr of all fuel burning appliances in the space. Vent-free heater _____________ Btu/Hr Gas water heater* _____________ Btu/Hr Gas furnace _____________ Btu/Hr Vented gas heater _____________ Btu/Hr Gas fireplace logs _____________ Btu/Hr Other gas appliances* + _____________ Btu/Hr Total = _____________ Btu/Hr * Do not include direct-vent gas appliances.

  • Page 6: Ventilation Air

    AIR FOR COMBUSTION AND VENTILATION Ventilation Air AIR FOR COMBUSTION AND VENTILATION Continued VENTILATION AIR Ventilation Air From Inside Building This fresh air would come from an adjoining unconfined space. When ventilating to an adjoining unconfined space, you must provide two permanent openings: one within 12" of the ceiling and one within 12"...

  • Page 7: Installation

    INSTALLATION NOTICE: This heater is intended for use as supple- mental heat. Use this heater along with your primary heating system. Do not install this heater as your primary heat source. If you have a central heating system, you may run system’s circulating blower while using heater.
  • Page 8 INSTALLATION Thermostat Sensing Bulb Installing Heater To Wall INSTALLATION Continued THERMOSTAT SENSING BULB (Thermostat Models Only) The thermostat sensing bulb has been placed inside the heater for protection during shipping. Locating Thermostat Sensing Bulb (for thermostat applications) Remove front panel of heater (see Figure 7). Locate thermostat sensing bulb just under burner assembly.
  • Page 9 INSTALLATION Continued Marking Screw Locations Tape mounting bracket to wall where heater will be located. Make sure mounting bracket is level. WARNING: Maintain minimum clearances shown in Figure 8. If you can, provide greater clearances from floor and joining wall. Mark screw locations on wall (see Figure 8).
  • Page 10 INSTALLATION Installing Heater To Wall (Cont.) Mounting Heater To Floor With Optional Floor Kit INSTALLATION Continued Installing Bottom Mounting Screws Locate two bottom mounting holes. These holes are near bot- tom on back panel of heater (see Figure 12). Mark screw locations on wall. Remove heater from mounting bracket.

  • Page 11: Connecting To Gas Supply

    INSTALLATION Continued CONNECTING TO GAS SUPPLY WARNING: This appliance requires a 3/8" NPT (National Pipe Thread) inlet connection to the pres- sure regulator. WARNING: A qualified service person must con- nect heater to gas supply. Follow all local codes. WARNING: For natural gas, never connect heater to private (non-utility) gas wells.

  • Page 12: Checking Gas Connections

    INSTALLATION Checking Gas Connections INSTALLATION Continued CHECKING GAS CONNECTIONS WARNING: Test all gas piping and connections for leaks after installing or servicing. Correct all leaks at once. WARNING: Never use an open flame to check for a leak. Apply a noncorrosive leak detection fluid to all joints.

  • Page 13: Operating Heater

    OPERATING HEATER MANUAL CONTROL MODELS FOR YOUR SAFETY READ BEFORE LIGHTING WARNING: If you do not follow these instructions exactly, a fire or explosion may result causing prop- erty damage, personal injury or loss of life. A. This appliance has a pilot which must be lighted by hand. When lighting the pilot, follow these instructions exactly.

  • Page 14: For Your Safety Read Before Lighting

    OPERATING HEATER (MANUAL CONTROL MODELS) To Turn Off Gas To Appliance Manual Lighting Procedure OPERATING HEATER (THERMOSTAT CONTROLLED MODELS) For Your Safety Read Before Lighting Lighting Instructions OPERATING HEATER Continued TO TURN OFF GAS TO APPLIANCE Shutting Off Heater Press in and turn control knob clockwise PILOT position.

  • Page 15: Inspecting Heater

    OPERATING HEATER Continued CAUTION: Do not try to adjust heating levels by using the equipment shutoff valve. Ignitor Button IGNITOR Figure 21 - Control Knob In The OFF Position Thermocouple Ignitor Electrode Figure 22 - Pilot (actual pilot may vary) TO TURN OFF GAS TO APPLIANCE Shutting Off Heater Turn control knob clockwise...

  • Page 16: Cleaning And Maintenance

    INSPECTING HEATER Burner Flame Pattern CLEANING AND MAINTENANCE ODS/Pilot and Burner Cleaning Burner Pilot Air Inlet Cabinet INSPECTING HEATER Continued BURNER FLAME PATTERN WARNING: If yellow tipping occurs, your heater could produce increased levels of carbon monoxide. NOTICE: Do not mistake orange flames with yellow tipping.

  • Page 17: For More Information, Visit Www.desatech.com For More Information, Visit Www.desatech.com

    TROUBLESHOOTING Note: For additional help, visit DESA International’s technical service web site at www.desatech.com. Note: All troubleshooting items are listed in order of operation. OBSERVED PROBLEM When ignitor button is pressed, there is no spark at ODS/pilot When ignitor button is pressed, there is...

  • Page 18: For More Information, Visit Www.desatech.com For More Information, Visit Www.desatech.com

    TROUBLESHOOTING TROUBLESHOOTING Continued OBSERVED PROBLEM Burner does not light after ODS/pilot is lit Delayed ignition of burner Burner backfiring during combustion Yellow flame during burner combustion Slight smoke or odor during initial operation Heater produces a whistling noise when burner is lit White powder residue forming within burner box or on adjacent walls or furniture For more information, visit www.desatech.com...

  • Page 19: For More Information, Visit Www.desatech.com For More Information, Visit Www.desatech.com

    TROUBLESHOOTING Continued 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.

  • Page 20: Illustrated Parts Breakdown And Parts List

    ILLUSTRATED PARTS BREAKDOWN GN30, GP30 GWN20, GWP20, WMN20, WMP20 ILLUSTRATED PARTS BREAKDOWN GN30, GP30 GWN20, GWP20 WMN20, WMP20 For more information, visit www.desatech.com For more information, visit www.desatech.com 107884...

  • Page 21: Parts List

    098354-02 098508-01 100642-03 105345-01 107888-01 109483-01 ** Not a field replaceable part. For more information, visit www.desatech.com For more information, visit www.desatech.com 107884 GN30, GP30 GWN20, GWP20, WMN20, WMP20 PART NUMBER FOR GWN20 GWP20 GP30 WMN20 WMP20 097159-04 097159-04 097159-04...
  • Page 22 ILLUSTRATED PARTS BREAKDOWN GN30T, GP30T GWN20T, GWP20T, GWN30T, GWP30T ILLUSTRATED PARTS BREAKDOWN GN30T, GP30T GWN20T, GWP20T GWN30T, GWP30T For more information, visit www.desatech.com For more information, visit www.desatech.com 107884...
  • Page 23 PARTS LIST 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. PART NUMBER FOR GN30T GP30T 097159-04 097159-04 107676-01 107676-01 103476-02 103476-02 098522-12 098522-13 ____ ____ ____...

  • Page 24: Specifications

    You can also visit DESA International’s technical service web site at www.desatech.com. 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. REPLACEMENT PARTS Note: Use only original replacement parts.

  • Page 25: Owner's Registration Form

    Address: City: Home Phone: E-Mail: Please answer the following questions to register your product with DESA International: Where will the product be used? Living/Family Room Office/Warehouse If you bought this product yourself, did you plan to purchase this type of product before going into the store?
  • Page 26 Postage Required 2701 Industrial Drive P.O. Box 90004 Bowling Green, KY 42102-9004 For more information, visit www.desatech.com For more information, visit www.desatech.com 107884...

  • Page 27: Accessories

    Purchase these heater accessories from your local dealer. If they can not supply these accessories, either contact your nearest Parts Central (see below) or call DESA International at 1-866-672-6040 for referral information. You can also write to the address listed on the back page of this manual.

  • Page 28: Warranty Information

    VENT-FREE RESIDENTIAL GAS HEATERS DESA International warrants this product to be free from defects in materials and components for two (2) years from the date of first purchase, provided that the product has been properly installed, operated and maintained in accordance with all applicable instructions. To make a claim under this warranty the Bill of Sale or cancelled check must be presented.

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