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UNVENTED (VENT-FREE) BLUE FLAME GAS HEATER
SAFETY INFORMATION AND INSTALLATION MANUAL
MODELS GWN6, GWP6, GWN10, GWP10
WARNING: If the information in this manual is not fol-
lowed 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
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 instructions.
• If you cannot reach your gas supplier, call the fire
department.
— Installation and service must be performed by a quali-
fied installer, service agency or the gas supplier.
INSTALLER: Leave this manual with the appliance.
CONSUMER: Retain this manual for future reference.
GWN10T AND GWP10T
For more information, visit www.desatech.com
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Related Manuals for Desa DWN6
Summary of Contents for Desa DWN6
- Page 1 UNVENTED (VENT-FREE) BLUE FLAME GAS HEATER SAFETY INFORMATION AND INSTALLATION MANUAL MODELS GWN6, GWP6, GWN10, GWP10 GWN10T AND GWP10T WARNING: If the information in this manual is not fol- lowed exactly, a fire or explosion may result causing property damage, personal injury or loss of life. —...
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Page 2: Table Of Contents
TABLE OF CONTENTS Safety Information .......... Troubleshooting ..........16 Local Codes............4 Illustrated Parts Breakdown and Parts List..0 Unpacking............4 Specifications ............ 4 Product Identification ........... 4 Accessories ............5 Product Features ..........4 Service Hints ............. 5 Air For Combustion and Ventilation ..... -
Page 3: Safety Information
SAFETY INFORMATION Keep the appliance area clear Continued and free from combustible ma- Natural and Pro- terials, gasoline and other flam- Natural and Propane/LP Gas: pane/LP gases are odorless. An odor-making mable vapors and liquids. agent is added to these gases. The odor helps you detect a gas leak. -
Page 4: Local Codes
SAFETY INFORMATION PRODUCT Continued IDENTIFICATION 13. Before using furniture polish, wax, carpet Control Knob Ignitor Button cleaner or similar products, turn heater off. If heated, the vapors from these products may create a white powder residue within burner box or on adjacent walls or furniture. 14. -
Page 5: Air For Combustion And Ventilation
AIR FOR COMBUSTION Unusually Tight Construction The air that leaks around doors and windows AND VENTILATION may provide enough fresh air for combustion and ventilation. However, in buildings of unusually WARNING: This heater shall tight construction, you must provide additional not be installed in a confined fresh air. - Page 6 The space in the above example is a confined space AIR FOR COMBUSTION because the actual Btu/Hr used is more than the maxi- AND VENTILATION mum Btu/Hr the space can support. You must provide additional fresh air. Your options are as follows: Continued A.
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Page 7: Installation
AIR FOR COMBUSTION INSTALLATION AND VENTILATION NOTICE: This heater is intended Continued for use as supplemental heat. Use this heater along with your primary heating system. Do not install this heater as your primary heat source. 12" If you have a central heating system, you may run system’s circulating Ventilation Grills blower while using heater. - Page 8 INSTALLATION CAUTION: If you install the Continued heater in a home garage LOCATING HEATER • heater pilot and burner must This heater is designed to be mounted on a wall. be at least 18" (45.7 cm) above floor WARNING: Maintain the •...
- Page 9 INSTALLATION Thin or Thick Wall Continued (thick wall " " shown) (.5 cm) (14.7 cm) 1/16" Minimum To (1.6 mm) Maintain 6" Space (15. cm) Solid Clearance " Wall From Wall (51.4 cm) Mounting Minimum To Screw Figure 8 - Tightening Anchors Maintain "...
- Page 10 INSTALLATION WARNING: For natural Continued gas, never connect heater to Installing Bottom Mounting Screw private (non-utility) gas wells. 1. Locate bottom mounting hole. This hole is This gas is commonly known near bottom on back panel of heater (see Figure 11). as wellhead gas.
- Page 11 IMPORTANT: Hold the pressure regulator with INSTALLATION wrench when connecting it to gas piping and/or Continued fittings. Do not over tighten pipe connection to Installation must include equipment shutoff valve, regulator. The regulator body could be damaged. union and plugged 1/8" NPT tap. Locate NPT tap within reach for test gauge hook up.
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Page 12: Operating Heater
3. Make sure control knob of heater is in the OFF INSTALLATION position. Continued 4. Check all joints from equipment shutoff valve Test Pressures Equal To or Less Than to thermostat gas valve (see Figure 15 or 16). 1/2 PSIG (3.5 kPa) Apply a noncorrosive leak detection fluid to 1. - Page 13 OPERATING HEATER WARNING: Always operate Continued manual control heaters at the LIGHTING locked positions. Operation INSTRUCTIONS between these positions may 1. STOP! Read the safety information, page 12. create a possible health hazard 2. Make sure equipment shutoff valve is fully if used in a poorly ventilated open.
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Page 14: Inspecting Heater
Note: The pilot flame on natural gas units will OPERATING HEATER have a slight curve, but flame should be blue and Continued have no yellow or orange color. THERMOSTAT CONTROL Blue Flame OPERATION The thermostatic control used on these models Pilot Burner Thermocouple differs from standard thermostats. -
Page 15: Cleaning And Maintenance
INSPECTING HEATER BURNER PILOT AIR INLET The primary air inlet holes allow the proper Continued amount of air to mix with the gas. This provides a clean burning flame. Keep these holes clear of dust, dirt and lint. Clean these air inlet holes prior to each heating season. -
Page 16: Troubleshooting
TROUBLESHOOTING WARNING: Turn off and unplug heater and let cool before servicing. 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 operation. OBSERvED PROBLEM POSSIBLE CAUSE REMEDY... - Page 17 TROUBLESHOOTING Continued OBSERvED PROBLEM POSSIBLE CAUSE REMEDY ODS/pilot lights but flame 1. Control knob not fully pressed in 1. Press in control knob fully goes out when control knob is 2. Control knob not pressed in 2. After ODS/pilot lights, keep released long enough control knob pressed in 30...
- Page 18 TROUBLESHOOTING Continued OBSERvED PROBLEM POSSIBLE CAUSE REMEDY Yellow flame during burner 1. Not enough air 1. Check burner for dirt and de- combustion bris. If found, clean burner (see Cleaning and Maintenance, page 15) 2. Inlet gas pressure is too low 2.
- Page 19 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. Fol- low the gas supplier’s instructions.
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Page 20: Illustrated Parts Breakdown
ILLUSTRATED PARTS BREAkDOWN MODELS GWP6, GWN6, GWP10 AND GWN10 11-1 ODS/Pilot www.desatech.com 117001-01B... -
Page 21: Parts List
PARTS LIST 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. NO. PART NO. DESCRIPTION 004-01 Screw, #10 x /" • • • • 0467-07 Front Panel •... - Page 22 ILLUSTRATED PARTS BREAkDOWN MODELS GWP10T AND GWN10T 11-1 ODS/Pilot www.desatech.com 117001-01B...
- 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 25 of this manual. PART NO. DESCRIPTION QTY. 004-01 Screw, #10 x /" • • 0467-07 Front Panel Assembly •...
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Page 24: Specifications
SPECIFICATIONS GWP6 GWN10 • 4,400/6,000 Btu/hr (Variable) • 5,000/10,000 Btu/hr (Variable) • Propane/LP Gas • Natural Gas • Piezo Ignition • Piezo Ignition • Pressure Regulator Setting: 8" W.C. • Pressure Regulator Setting: 3" W.C. • Inlet Gas Pressure (inches of water): •... -
Page 25: Accessories
Heating Products’ 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 Heating Products’ techni- cal 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. - Page 26 NOTES ______________________________________________________ ______________________________________________________ ______________________________________________________ ______________________________________________________ ______________________________________________________ ______________________________________________________ ______________________________________________________ ______________________________________________________ ______________________________________________________ ______________________________________________________ ______________________________________________________ ______________________________________________________ ______________________________________________________ _____________________________________________________ ______________________________________________________ ______________________________________________________ ______________________________________________________ ______________________________________________________ ______________________________________________________ ______________________________________________________ ______________________________________________________ ______________________________________________________ ______________________________________________________ ______________________________________________________ ______________________________________________________ ______________________________________________________ _____________________________________________________ ______________________________________________________ ______________________________________________________ ______________________________________________________ ______________________________________________________ ______________________________________________________ ______________________________________________________ ______________________________________________________ ______________________________________________________ 117001-01B www.desatech.com...
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Page 27: Warranty Information
LIMITED WARRANTIES FOR NEW AND FACTORY RECONDITIONED PRODUCTS DESA Heating Products warrants this heater and any parts thereof, to be free of defects in materials New Products: and workmanship for two (2) years from the date of first purchase, when operated and maintained in accordance with the manufacturer's instructions.