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UNVENTED (VENT-FREE) BLUE FLAME GAS HEATER

SAFETY INFORMATION AND INSTALLATION MANUAL

MODELS GWN6, GWP6, GWN10, GWP10

GWN10T AND GWP10T

For more information, visit www.desatech.com

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.

Summary of Contents for DWN6

Page 1: ...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 yo...

Page 2: ...cer or birth defects or other reproductive harm IMPORTANT Read this owner s manualcarefullyandcompletely before trying to assemble operate or service this heater Improper use of this heater can cause...

Page 3: ...propane LP supply tank s in side any structure Locate propane LP supply tank s outdoors 3 Do not install 10 000 Btu hr units in a bath room 6 000 Btu hr heaters are allowed in a bathroom 4 If you smel...

Page 4: ...upon sale of the unit Vent free gas products are prohibited for bed room and bathroom installation in the Com monwealth of Massachusetts Unpacking 1 Remove heater from carton 2 Remove all protective...

Page 5: ...e air that leaks around doors and windows may provide enough fresh air for combustion and ventilation However in buildings of unusually tight construction you must provide additional fresh air Unusual...

Page 6: ...ls or ducts 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 confined or unconfined space Space Incl...

Page 7: ...this heater as your primary heat source WARNING A qualified ser vice person must install heater Follow all local codes CHECK GAS TYPE Use only the correct type of gas natural or pro pane LP If your g...

Page 8: ...currents These currents move heat to wall sur faces next to heater Installing heater next to vinyl or cloth wall coverings or operating heater where impurities such as but not limited to tobacco smoke...

Page 9: ...thick walls over 1 2 1 3 cm thick or solid walls do not pop open wings 5 Tighten two screws until 1 16 1 6 mm space thickness of penny is between screwheads and wall see Figure 8 Installation Continu...

Page 10: ...codes Use pipe of large enough diameter to allow proper gas volume to heater If pipe is too small undue loss of volume will occur Installation Continued Figure 12 External Regulator With Vent Pointin...

Page 11: ...pliance main gas valve control valve and equipment shutoff valve from gas supply piping system Pressures in excess of 1 2 psig will damage heater regulator 2 Cap off open end of gas pipe where equipme...

Page 12: ...sion D Do not use this appliance if any part has been under water Immediately call a qualified service technician to inspect the appliance and to replace any part of the control system and any gas con...

Page 13: ...ntil repairs are made light pilot with match To light pilot with match see Manual Lighting Procedure page 14 8 Keep control knob pressed in for 30 seconds after lighting pilot After 30 seconds release...

Page 14: ...Pilot Burner Thermocouple Blue Flame Yellow Flame Figure 20 Correct Pilot Flame Pattern Figure 21 Incorrect Pilot Flame Pattern Note The pilot flame on natural gas units will have a slight curve but f...

Page 15: ...ason Blocked air holes will create soot We recommend that you clean the unit every three months during operation and have heater inspected yearly by a qualified service person We also recommend that y...

Page 16: ...s when in stalled 5 Depleted gas supply propane LP only 6 ODS pilot is clogged 7 Gas regulator setting is not correct REMEDY 1 Replace pilot assembly 2 Replace pilot assembly 3 Reconnect ignitor cable...

Page 17: ...knob fully 2 After ODS pilot lights keep control knob pressed in 30 seconds 3 Fully open equipment shutoff valve 4 Hand tighten until snug then tighten 1 4 turn more 5 A Contact local natural or propa...

Page 18: ...lace gas regulator 1 Problem will stop after a few hours of operation 1 Turn control knob to lowest position and let warm up for a minute 2 Operate burner until air is removed from line Have gas check...

Page 19: ...ance page 15 1 Locate and correct all leaks see Checking Gas Connec tions page 11 2 Replace control valve 1 Take apart gas tubing and remove foreign matter 2 Locate and correct all leaks see Checking...

Page 20: ...www desatech com 117001 01B 20 9 11 10 1 2 3 4 5 6 7 8 10 12 13 14 16 17 20 21 19 23 22 18 24 15 Illustrated Parts Breakdown Models GWP6 GWN6 GWP10 and GWN10 11 1 11 ODS Pilot...

Page 21: ...7 Pilot Tubing 1 14 104259 01 Injector 1 piece 1 104259 02 Injector 1 piece 1 104259 03 Injector 1 piece 1 104259 04 Injector 1 piece 1 15 NJF 8C Hex Nut 1 16 099415 17 Pressure Regulator 1 099415 18...

Page 22: ...www desatech com 117001 01B 22 ILLUSTRATED PARTS BREAKDOWN Models GWP10T and GWN10T 15 1 2 3 5 6 7 8 4 13 9 10 12 13 14 11 17 19 18 9 20 21 16 11 1 11 ODS Pilot...

Page 23: ...ly 1 11 1 110186 01 Thermocouple Kit 1 12 104263 03 Burner 1 13 099387 11 Pilot Tubing 1 14 104259 05 Injector 1 Piece 1 104259 06 Injector 1 Piece 1 15 NJF 8C Hex Nut 1 16 099415 17 Pressure Regulato...

Page 24: ...ensions H x W x D 25 x 16 75 x 7 75 63 5 x 42 5 x 19 7 cm Heater Weight 13 5 6 1 kg Heater Shipping Weight 15 lb 6 8 kg GWP6 4 400 6 000 Btu hr Variable Propane LP Gas Piezo Ignition Pressure Regulato...

Page 25: ...serial numbers of your heater ready You can also visit DESAHeating Products techni cal service web site at www desatech com Service Publications Youcanpurchaseaservicemanualfromtheaddress listed on t...

Page 26: ..._____________________________ ______________________________________________________ ______________________________________________________ ______________________________________________________ _____...

Page 27: ...provide original factory replacement parts Failure to use original factory replacement parts voids this warranty The heater MUST be installed by a qualified installer in accordance with all local cod...

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