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Desa UNVENTED (VENT-FREE) NATURAL GAS FIREPLACE Owner's Operating & Installation Manual

Unvented (vent-free) natural gas fireplace, manually controlled
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DESA INTERNATIONAL
UNVENTED (VENT-FREE)
NATURAL GAS FIREPLACE
OWNER'S OPERATION AND INSTALLATION MANUAL
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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.
Manually Controlled
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Save this manual for future reference.
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Shown with optional
cabinet mantel, hearth
base, and trim
accessories.

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

  • Page 1 DESA INTERNATIONAL UNVENTED (VENT-FREE) NATURAL GAS FIREPLACE OWNER’S OPERATION AND INSTALLATION MANUAL Manually Controlled QQQQQQ QQQQQQ QQQQQQ QQQQQQ QQQQQQ QQQQQQ QQQQQQ QQQQQQQQQQ QQQQQQ QQQQQQQQQQ QQQQQQ QQQQQQQQQQ Shown with optional cabinet mantel, hearth base, and trim ® accessories. 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.

  • Page 2: Table Of Contents

    SECTION PAGE CONTENTS Safety Information ................... 2 Product Identification ................4 Local Codes ..................... 5 Unpacking....................5 Product Features ..................5 Air for Combustion and Ventilation ............6 Installing ....................9 Check Gas Type ................9 Assembling and Attaching Brass Trim ..........10 Installation Clearances ..............
  • Page 3 WARNINGS Continued SAFETY WARNING ICON G 001 WARNING: Any change to this fireplace or its controls can be dangerous. INFORMATION 1. Use only natural gas. Do not convert fireplace to use different fuel type. 2. If you smell gas Continued •...

  • Page 4: Product Identification

    PRODUCT Crossover Log (#3) Front Log (#2) Rear Log (#1) IDENTIFICATION Front Burner Rear Burner Left Front Branch (#4) Regulator Base Right Front Branch Control (#5) Knob Piezo Ignitor Figure 1 - Log Base Assembly Top Louver Top Outer Assembly Casing Firebox Hood...

  • Page 5: Local Codes

    LOCAL CODES Install and use fireplace with care. Follow all local codes. In the absence of local codes, use the latest edition of The National Fuel Gas Code ANSI Z223, also known as NFPA 54*. *Available from: American National Standards Institute, Inc. 1430 Broadway New York, NY 10018 National Fire Protection Association, Inc.

  • Page 6: Air For Combustion And Ventilation

    AIR FOR WARNING WARNING ICON G 001 COMBUSTION This fireplace must have fresh air for proper operation. If not, poor fuel combustion could result. Read the following instructions to insure proper fresh air for this VENTILATION and other fuel-burning appliances in your home. Today’s homes are built more energy efficient than ever.
  • Page 7 DETERMINING AIR FLOW FOR FIREPLACE LOCATION AIR FOR Determining if You Have a Confined or Unconfined Space COMBUSTION Use this work sheet to determine if you have a confined or unconfined space. Space: Includes the room in which you will install fireplace plus any adjoining rooms with doorless passageways or ventilation grills between the rooms.
  • Page 8 VENTILATION AIR AIR FOR Ventilation Air from Inside Building COMBUSTION 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" of the floor on the wall connecting the two spaces (see VENTILATION options 1 and 2, Figure 3).

  • Page 9: Installing

    INSTALLING NOTICE A qualified service person must install fireplace. Fol- low all local codes. WARNING WARNING ICON G 001 Never install the fireplace • in a bedroom or bathroom • in a recreational vehicle • where curtains, furniture, clothing, or other flam- mable objects are less than 36 inches from the front, top, or sides of the fireplace •...

  • Page 10: Assembling And Attaching Brass Trim

    INSTALLING ASSEMBLING AND ATTACHING BRASS TRIM Note: The instructions below show assembling and attaching brass trim to fire- Continued place. You cannot attach the brass trim as described below for built-in installation (see page 13). 1. Remove packaging from three pieces of brass trim. 2.

  • Page 11: Installation Clearances

    INSTALLATION CLEARANCES INSTALLING WARNING Continued WARNING ICON G 001 Maintain the minimum clearances. If you can, pro- vide greater clearances from floor, ceiling, and adjoining wall. Carefully follow the instructions below. This will ensure safe installation. Minimum Wall and Ceiling Clearances (see Figure 7) A.
  • Page 12 INSTALLING 2. Install gas piping to fireplace location. This installation includes an approved flexible gas line (if allowed by local codes) after the manual shutoff valve. The Continued flexible gas line must be the last item installed on the gas piping. See Installing Gas Piping to Fireplace Location, page 16.

  • Page 13: Built-In Fireplace Installation

    INSTALLING 8. Carefully insert fireplace into cabinet mantel. Be careful not to scratch or damage hearth base, cabinet mantel, or any laminate trim on hearth base. Remove protective material from top of hearth base and from front of fireplace Continued (if any).
  • Page 14 If installing in a corner, use dimensions shown in Figure 12 for the rough opening. INSTALLING The height is 33" which is the same as the wall opening on page 13. Continued 39 3/8" 27 7/8" 35 1/2" 55 5/8" Figure 12 - Rough Opening for Installing in Corner 2.
  • Page 15 INSTALLING Alternate Built-In Attachment Method: Nailing Flange Accessory If desiring to attach heater to wall studs, use nailing flange accessory. Note: Continued cannot use brass trim if using the nailing flange. 1. Attach nailing flange accessory to each side of fireplace (see Figure 14). See Accessories, page 33, for nailing flange.

  • Page 16: Installing Gas Piping To Fireplace Location

    INSTALLING INSTALLING GAS PIPING TO FIREPLACE LOCATION NOTICE Continued A qualified service person must connect fireplace to gas supply. Follow all local codes. Installation Items Needed Before installing fireplace, make sure you have the items listed below. • piping (check local codes) •...

  • Page 17: Connecting Fireplace To Gas Supply

    A.G.A. Design-Certified Manual Shutoff Valve INSTALLING With 1/8" NPT Tap* Continued Approved Flexible Gas Line From Gas Meter (5" W.C. to 10.5" W.C. 3" Minimum Pressure) Sediment Trap Tee Joint Pipe Nipple Figure 16 - Gas Connection * Purchase the optional A.G.A. design-certified manual shutoff valve from your dealer. See Accessories, page 32.

  • Page 18: Checking Gas Connections

    INSTALLING 4. Route flexible gas line from manual shutoff valve into fireplace through side or rear access panel. Route flexible gas supply line through fireplace access door. Continued NOTICE Most building codes do not permit concealed gas connections. A flexible gas line is provided to allow accessibility from the fireplace.
  • Page 19 INSTALLING Test Pressures Equal To or Less Than 1/2 PSIG 1. Close manual shutoff valve (see Figure 19). Continued 2. Pressurize supply piping system by either using compressed air or opening main gas valve located on or near gas meter. 3.

  • Page 20: Installing Logs

    INSTALLING INSTALLING LOGS Continued WARNING WARNING ICON G 001 Do not add extra logs or ornaments such as pine cones, vermiculite, or rock wool. Using these added items can cause sooting. Do not add lava rock around base. Rock and debris could fall into the control area of fireplace.
  • Page 21 INSTALLING 3. Place crossover log (#3) into place (see Figure 23). Be sure to place back of crossover log into notch on left side of rear log. The indentation under front left Continued fork of crossover log must rest on rectangular knob of front log. Crossover Log (#3) Figure 23 - Installing Crossover Log 4.

  • Page 22: Operating Fireplace

    INSTALLING WARNING WARNING ICON G 001 You must operate this fireplace with the fireplace Continued screen in place. Make sure fireplace screen is in place before running fireplace. 5. Install fireplace screen by slipping notches of fireplace screen over screws on front of fireplace (see Figure 25).

  • Page 23: Operating Fireplace

    OPERATING LIGHTING INSTRUCTIONS FIREPLACE WARNING Continued WARNING ICON G 001 You must operate this fireplace with the fireplace screen in place. Make sure fireplace screen is installed before running fireplace. NOTICE During initial operation of new fireplace, burning logs will give off a paper-burning smell. Orange flame will also be present.

  • Page 24: To Turn Off Gas To Appliance

    OPERATING 8. Turn control knob counterclockwise to the LOW position. The front C-clockwise burner should light. Set control knob to either HIGH, MEDIUM, or LOW. To turn FIREPLACE control knob from LOW to a higher setting, press in the control knob and turn counterclockwise .

  • Page 25: Inspecting Burners

    INSPECTING Check pilot flame pattern and burner flame patterns often. PILOT FLAME PATTERN BURNERS Figure 28 shows a correct pilot flame pattern. Figure 29 shows an incorrect pilot flame pattern. The incorrect pilot flame is not touching the thermocouple. This will cause the thermocouple to cool.

  • Page 26: Cleaning And Maintenance

    CLEANING WARNING WARNING ICON G 001 Turn off fireplace and let cool before cleaning. MAINTENANCE CAUTION WARNING ICON G 001 You must keep control areas, burners, and circulating air passageways of fireplace clean. Inspect these areas of fireplace before each use. Have fireplace inspected yearly by a qualified service person.
  • Page 27 OBSERVED POSSIBLE TROUBLE- PROBLEM CAUSE REMEDY SHOOTING When ignitor button 1. Gas supply turned off or 1. Turn on gas supply or Continued is pressed, there is manual shutoff valve open manual shutoff spark at ODS/pilot closed valve but no ignition 2.
  • Page 28 TROUBLE- OBSERVED POSSIBLE PROBLEM CAUSE REMEDY SHOOTING One or both burners 1. Burner orifice(s) 1. Clean burner(s) (see Continued do not light after clogged Cleaning and Mainte- ODS/pilot is lit nance, page 26) or replace burner orifice(s) 2. Burner orifice(s) 2.
  • Page 29 TROUBLE- WARNING WARNING ICON G 001 SHOOTING If you smell gas • Shut off gas supply. Continued • Do not try to light any appliance. • Do not touch any electrical switch; do not use any phone in your building. •...

  • Page 30: Technical Service

    TROUBLE- OBSERVED POSSIBLE PROBLEM CAUSE REMEDY SHOOTING Gas odor during 1. Foreign matter be- 1. Take apart gas tubing Continued combustion tween control valve and remove foreign and burner matter 2. Gas leak. See Warn- 2. Locate and correct all ing statement at leaks (see Checking Gas top of page 29...

  • Page 31: Replacement Parts

    Note: Use only original replacement parts. This will protect your warranty cover- REPLACEMENT age for parts replaced under warranty. PARTS Parts Under Warranty Contact authorized dealers of this product. If they can’t supply original replacement part(s), call DESA International’s Technical Service Department at 1-800-DESA LOG (1-800-337-2564).

  • Page 32: Accessories

    Purchase these fireplace accessories from your local dealer. If they can not supply ACCESSORIES these accessories, call DESA International’s Sales Department at 1-800-432-2382 for information. You can also write to the address listed on the back page of this manual. QQQQQQ QQQQQQ CABINET MANTEL...
  • Page 33 ACCESSORIES Continued QQQQQQ QQQQQQ QQQQQQ QQQQQQ QQQQQQ QQQQQQ QQQQQQ QQQQQQ QQQQQQ CORNER MANTEL GM200F - Walnut Finished GM201U - Unfinished Shown with optional laminate mantel trim accessory. Dimensions (WxHxD): 61-1/8" x 48-3/4" x 34-1/2" QQQQ QQ QQ QQ QQQQQ QQQQ QQQQQ Hearth Base Trim QQQQ...

  • Page 34: Illustrated Parts Lists

    ILLUSTRATED PARTS BREAKDOWN Log Base Assembly 7-1 7-2 101968...
  • Page 35 PARTS LIST This list contains replaceable parts used in your fireplace. When ordering parts, follow the instructions listed under Replacement Parts on page 31 of this manual. Log Base Assembly PART NUMBER DESCRIPTION QTY. 101337-02 Rear Log (#1) 101336-02 Front Log (#2) 101335-01 Crossover Log (#3) 101332-01...
  • Page 36 ILLUSTRATED PARTS BREAKDOWN Fireplace 101968...
  • Page 37 This list contains replaceable parts used in your fireplace. When ordering parts, PARTS LIST follow the instructions listed under Replacement Parts on page 31 of this manual. Fireplace PART NUMBER DESCRIPTION QTY. 101357-01 Top Outer Casing 101373-01 Outer Casing 101923-01CB Right Front Side 101922-01CB Left Front Side...
  • Page 38 NOTES 101968...
  • Page 39 NOTES 101968...

  • Page 40: Warranty Information

    WARRANTY INFORMATION KEEP THIS WARRANTY Model Serial No. Date Purchased Always specify model and serial numbers when communicating with the factory. We reserve the right to amend these specifications at any time without notice. The only warranty applicable is our standard written warranty.

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