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OWNER’S OPERATION AND INSTALLATION MANUAL

Manually Controlled

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DESA INTERNATIONAL

UNVENTED (VENT-FREE)

NATURAL GAS FIREPLACE

Shown with optional
cabinet mantel, hearth
base, and trim
accessories.

Save this manual for future reference.

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 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 qualified installer, service agency,

or the gas supplier.

WARNING: This is an unvented gas-fired heater. It uses air (oxygen) from the
room in which it is installed. Provisions for adequate combustion and ventilation
air must be provided. Refer to the 

Air for Combustion and Ventilation section in

this manual.

®

Summary of Contents for UNVENTED (VENT-FREE) NATURAL GAS FIREPLACE

Page 1: ...r 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 phon...

Page 2: ...ral gas is odorless An odor making agent is added to the gas The odor helpsyoudetectagasleak However theodoraddedtothegascanfade Gasmaybepresent even though no odor exists Make certain you read and un...

Page 3: ...ts that alter burner flame patterns Do not allow fans to blow directly into fireplace Do not place a blower inside burn area of firebox Ceiling fans may create drafts that alter burner flame patterns...

Page 4: ...ont Branch 5 Front Burner Front Log 2 Left Front Branch 4 Rear Log 1 Crossover Log 3 Gas Regulator Piezo Ignitor Control Knob Figure 2 Fireplace Top Louver Assembly Firebox Hood Bottom Louver Assembly...

Page 5: ...installation 3 Check all items for any shipping damage If damaged promptly inform dealer where you bought fireplace PRODUCT FEATURES Operation Thisvent freefireplaceiscleanburning Itrequiresnooutside...

Page 6: ...pace and provide adequate ventilation Unusually Tight Construction The air that leaks around doors and windows may provide enough fresh air for com bustion and ventilation However in buildings of unus...

Page 7: ...ogs ___________________ Btu Hr Other gas appliances ___________________ Btu Hr Total ___________________ Btu Hr Example Gas water heater 40 000 Btu Hr Vent free fireplace 28 000 Btu Hr Total 68 000 Bt...

Page 8: ...y 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 outdoors or spaces open to t...

Page 9: ...lace in rooms without enough ventilation air may cause mildew to form from too much moisture See Air for Combustion and Ventilation pages 6 through 8 IMPORTANT Make sure the fireplace is level If fire...

Page 10: ...d of adjusting plate shim in slot on mitered edge of top brass trim see Figure 5 5 Slide other end of adjusting plate shim in slot on mitered edge of side brass trim see Figure 5 6 While firmly holdin...

Page 11: ...l directly on the floor The corner mantel and face mantel accessories cannot be installed with the G3000F G3001U hearth base You must install corner mantel directly on the floor If mounting fireplace...

Page 12: ...el will cover it when installed Note You can secure base to floor using wood screws Countersink screw heads and putty over Figure 8 Placing Hearth Base Accessory Against Wall QQQQQQ QQQQQQ QQQQQQ QQQQ...

Page 13: ...s page 18 Continued 1 Frame in rough opening Use dimensions shown in Figure 11 for the rough opening QQQQQ QQQQQ QQQ QQQ QQQ QQQ QQQ Figure 10 Inserting Fireplace Into Cabinet Mantel 35 1 2 17 3 4 33...

Page 14: ...ble gas line must be the last item installed on the gas piping See Installing Gas Piping to Fireplace Location page 16 3 Carefully set fireplace in front of rough opening with back of fireplace inside...

Page 15: ...Attach fireplace to wall studs using nails or wood screws through holes in nailing flange see Figure 14 4 Check all gas connections for leaks See Checking Gas Connections page 18 Figure 14 Installing...

Page 16: ...tubing may be used in certain areas Check your local codes Use pipe of 1 2 diameter or greater to allow proper gas volume to fireplace If pipe is too small undue loss of pressure will occur Installat...

Page 17: ...o propane gas not provided 1 Remove fireplace screen Remove two screws that hold fireplace screen in place for shipping These screws are located near top of screen Discard screws Lift fireplace screen...

Page 18: ...orrect all leaks at once WARNING ICON G 001 WARNING Never use an open flame to check for a leak Apply a mixture of liquid soap and water to all joints Bubbles forming show a leak Correct all leaks at...

Page 19: ...ve see Figure 19 2 Open main gas valve located on or near gas meter 3 Make sure control knob of fireplace is in the OFF position 4 Check all joints from manual shutoff valve to thermostat gas valve se...

Page 20: ...o the control area of fireplace Each log is marked with a number These numbers will help you identify the log when installing It is very important to install these logs exactly as instructed Do not mo...

Page 21: ...front left fork of crossover log must rest on rectangular knob of front log Crossover Log 3 Figure 23 Installing Crossover Log Continued Figure 24 Installing Left Front Branch and Right Front Branch 4...

Page 22: ...Do not touch any electric 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 su...

Page 23: ...to the PILOT position Press in control knob for five 5 seconds see Figure 26 above Note If running fireplace for first time there will be air in gas line You may need to press in control knob for 30...

Page 24: ...t operate heater between locked positions or sooting could occur WARNING ICON G 001 CAUTION Do not try to adjust heating levels by using the manual shutoff valve TO TURN OFF GAS TO APPLIANCE Shutting...

Page 25: ...ront burner flame pattern Figure 31 shows incorrect front burner flame pattern The incorrect burner flame pattern shows yellow tipping at top of blue flame WARNING ICON G 001 WARNING If front burner f...

Page 26: ...s if broken or chipped dime sized or larger TROUBLE SHOOTING Note All troubleshooting items are listed in order of operation WARNING ICON G 001 WARNING Turn off fireplace and let cool before servicing...

Page 27: ...mbly 7 Replace thermocouple 8 Replace control valve POSSIBLE CAUSE 1 Gas supply turned off or manual shutoff valve closed 2 Control knob not in PILOT position 3 Control knob not pressed in while in PI...

Page 28: ...nd clean burner s see Cleaning and Mainte nance page 26 2 Replace gas regulator 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 Ope...

Page 29: ...es cleaners chemicals new carpet etc See IMPORTANT statement above 2 Gas leak See Warn ing statement at top of page 1 Not enough fresh air is available 2 Low line pressure 3 ODS pilot is partially clo...

Page 30: ...lation requirements page 6 TROUBLE SHOOTING Continued SERVICE HINTS When gas pressure is too low pilot will not stay lit burners will have delayed ignition fireplace will not produce specified heat Wh...

Page 31: ...lfunctioning type of gas used propane or natural gas purchase date Usually we will ask you to return the defective part to the factory Parts Not Under Warranty Contact authorized dealers of this produ...

Page 32: ...accessories Dimensions WxHxD 56 7 8 x 48 3 4 x 20 7 8 FACE MANTEL GM400F Walnut Finished GM401U Unfinished Shown with optional slim base Dimensions WxHxD 56 3 4 x 48 3 4 x 7 HARDWOOD HEARTH BASE G3000...

Page 33: ...aminate Hearth Base Trim G3002B Black Onyx Marble Laminate Trim G3003B Black Onyx Marble Laminate Hearth Base Trim Mantel trim for cabinet or corner mantel Hearth base trim for hearth base Mantel Trim...

Page 34: ...34 101968 ILLUSTRATED PARTS BREAKDOWN Log Base Assembly 3 1 2 4 5 27 8 9 8 8 19 13 12 8 6 7 7 1 7 2 10 33 34 16 11 26 14 6 6 6 6 21 15 19 32 29 24 30 20 28 31 25 18 17 23 22...

Page 35: ...gnitor Cable 1 14 101924 01CB Firebox Bottom 1 15 098867 09 Gas Regulator 1 16 101004 04 Front Burner Injector 1 17 097159 02 Piezo Ignitor 1 18 101003 02 Pressure Tap Fitting 1 19 099387 05 Pilot Tub...

Page 36: ...36 101968 ILLUSTRATED PARTS BREAKDOWN Fireplace 1 2 3 4 5 6 10 6 14 15 13 16 12 12 12 7 19 11 18 12 12 8 9 17 17 17...

Page 37: ...2 01CB Top Front 2 7 101203 01 Top Louver Assembly 1 8 101354 01CB Middle Front 1 9 101712 01 Firebox Hood 1 10 101872 03 Firebox Top 1 11 101375 04BR Firebox Wrapper 1 12 M11084 26 Hex Screw 10 76 13...

Page 38: ...38 101968 NOTES...

Page 39: ...39 101968 NOTES...

Page 40: ...and all such other costs related to repairing a defective heater will be the responsibility of the owner TOTHEFULLEXTENTALLOWEDBYTHELAWOFTHEJURISDICTIONTHATGOVERNSTHESALEOFTHE PRODUCT THIS EXPRESS WA...

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