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®
UNVENTED (VENT-FREE)
NATURAL GAS FIREPLACE
OWNER’S OPERATION AND INSTALLATION MANUAL
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GAS FIREPLACE ¢¢¢¢¢¢QQQQQQ
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SYSTEM
Shown with optional
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cabinet mantel,
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hearth base, and trim
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accessories.
WARNING: Improper installation,
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® UNVENTED NATURAL GAS FIREPLACE 4. Do not use this fireplace as a wood- SAFETY Due to high temperatures, the burning fireplace. Use only the logs appliance should be located out INFORMATION provided with the fireplace. of traffic and away from furniture 5. Do not add extra logs or ornaments and draperies. WARNINGS such as pine cones, vermiculite, or rock wool. Using these added items can Do not place clothing or other IMPORTANT: Read this owner’s cause sooting. Do not add lava rock flammable m
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L I P F F O L WARMER TEMP COOLER AUTO ON OFF O OWNER’S MANUAL PRODUCT LOCAL CODES Install and use fireplace with care. Follow all IDENTIFICATION local codes. In the absence of local codes, use One Piece Log Set the latest edition of The National Fuel Gas Code ANS Z223.1, also known as NFPA 54*. *Available from: American National Standards Institute, Inc. 1430 Broadway New York, NY 10018 National Fire Protection Association, Inc. Batterymarch Park Quincy, MA 02269 Optional Remote Control UNPACK
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® UNVENTED NATURAL GAS FIREPLACE buildings of unusually tight construction, PRODUCT AIR FOR you must provide additional fresh air. FEATURES COMBUSTION AND Unusually tight construction is de- fined as construction where: VENTILATION a. walls and ceilings exposed to the OPERATION outside atmosphere have a con- WARNING: This heater shall This vent-free fireplace is clean burning. It tinuous water vapor retarder with not be installed in a confined space requires no outside venting. There is no heat
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OWNER’S MANUAL AIR FOR COMBUSTION AND VENTILATION Continued DETERMINING FRESH-AIR FLOW FOR FIREPLACE 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: Includes the room in which you will install fireplace plus any adjoining rooms with doorless passageways or ventilation grills between the rooms. 1. Determine the volume of the space (length x width x height). Length x Width x Height = _______________
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® UNVENTED NATURAL GAS FIREPLACE AIR FOR COMBUSTION AND 12" VENTILATION Continued Ventilation Ventilation Grills Grills VENTILATION AIR Into Adjoining Room, Into Adjoining Or Option 2 Room, Remove Ventilation Air From Inside Option 1 Door into Building Adjoining This fresh air would come from an adjoining Room, unconfined space. When ventilating to an Option adjoining unconfined space, you must pro- 3 vide two permanent openings: one within 12" of the ceiling and one within 12" of the floor o
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OWNER’S MANUAL Use the dimensions shown for rough openings ASSEMBLING AND INSTALLATION to create the easiest installation. See Built-In ATTACHING OPTIONAL Fireplace Installation, pages 9 and 10. NOTICE: This heater is intended BRASS TRIM IMPORTANT: Vent-free heaters add mois- for use as supplemental heat. Use (Included with Mantel Accessory) ture to the air. Although this is beneficial, this heater along with your pri- IMPORTANT: If you are recessing the fire- installing fireplace in rooms witho
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® UNVENTED NATURAL GAS FIREPLACE 4. Place hearth base accessory against 1 12 /4 INSTALLATION 1 wall at installation location. Cut an ac- 10 /2 Continued 3 8 /4 cess hole in hearth top to run gas line Example 7 to fireplace (see Figure 9). Make sure 8. Tighten trim hanging screws (#10 x 1 5 /4 to locate access hole so cabinet mantel 1 6.25 shoulder) into holes in cabinets. 3 /2 3 will cover it when installed. Note: You 1 /4 Place the assembled trim onto fireplace 7/8 can secure base to floor usin
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OWNER’S MANUAL 9. Plug electrical cord into electrical out- BUILT-IN FIREPLACE INSTALLATION let installed in step 2. INSTALLATION Continued 10. Install brass trim after final finishing 10. Carefully insert fireplace into cabinet Built-in installation of this fireplace involves and/or painting of wall (see Figure 7, mantel. Be careful not to scratch or installing fireplace into a framed-in enclo- page 8). damage hearth base, cabinet mantel, or sure. This makes the front of fireplace flush any lam
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® UNVENTED NATURAL GAS FIREPLACE INSTALLING GAS PIPING TO INSTALLATION FIREPLACE LOCATION Continued Mantel Clearances for Built-In WARNING: This appliance re- Installation quires a 1/2" NPT (National Pipe Thread) inlet connection to the If placing mantel above built-in fireplace, pressure regulator. you must meet minimum clearance between mantel shelf and top of fireplace opening. If your installation does not meet the below WARNING: A qualified ser- minimum clearances, you must: vice person m
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OWNER’S MANUAL 3. Route gas line (provided by installer) CONNECTING FIREPLACE INSTALLATION from equipment shutoff valve to fire- TO GAS SUPPLY Continued place. Route flexible gas supply line through one of the access holes. IMPORTANT: Install equipment shutoff Installation Items Needed valve in an accessible location. The equip- • 5/16" hex socket wrench or nut-driver ment shutoff valve is for turning on or NOTICE: Most building codes do • Phillips screwdriver shutting off the gas to the applia
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® UNVENTED NATURAL GAS FIREPLACE Test Pressures Equal To or Less Than Pressure Testing Fireplace Gas INSTALLATION 1/2 PSIG (3.5 kPa) Connections Continued 1. Close equipment shutoff valve (see Fig- 1. Open equipment shutoff valve (see Fig- ure 20). ure 20). CHECKING GAS 2. Pressurize supply piping system by ei- 2. Open main gas valve located on or near CONNECTIONS ther using compressed air or opening gas meter. main gas valve located on or near gas 3. Make sure control knob of fireplace is WARN
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L I P F F O L O OWNER’S MANUAL INSTALLATION Continued INSTALLING LOGS One Piece WARNING: Do not remove Log Set the metal data plates attached to the heater base assembly. The Middle data plates contain important Section at warranty information. Bottom of Log Set WARNING: Failure to position the parts in accordance with these Burner diagrams or failure to use only parts specifically approved with Chassis this heater may result in property damage or personal injury. "U"-shaped Cutout in Chassis
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O L I P F F O H I L ® UNVENTED NATURAL GAS FIREPLACE Note: You may be running this LIGHTING OPERATING heater for the first time after hook- INSTRUCTIONS FIREPLACE ing up to gas supply. If so, the con- trol knob may need to be pressed in WARNING: You must operate FOR YOUR SAFETY for 30 seconds or more. This will al- this heater with the fireplace READ BEFORE low air to bleed from the gas system. screen in place. Make sure fire- LIGHTING 7. With control knob pressed in, press place screen is in p
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N O T O H L I I L P OWNER’S MANUAL 1. After lighting, let pilot flame burn for OPTIONAL REMOTE OPERATING about one minute. Turn control knob OPERATION FIREPLACE to ON position. Adjust flame adjust- Note: All remote control accessories must ment knob anywhere between HI Continued be purchased separately (see Accessories, and LO. Slide the selector switch to the REMOTE position (see Figure pages 22 and 23). Follow instructions in- WARNING: Make sure the cluded with the remote control. 27). Note:
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® UNVENTED NATURAL GAS FIREPLACE OPTIONAL BLOWER OPERATING INSPECTING OPERATION FIREPLACE BURNERS Check pilot flame pattern and burner flame Continued Locate the blower switch by opening lower patterns often. louver on fireplace. Blower switch is lo- • In the ON mode, the burners will cated at lower right inside louver door. PILOT FLAME PATTERN ignite. The heater is in manual Figure 29 shows a correct pilot flame pattern. The GA3700T Series thermostat-con- mode when ON is lit. Figure 30 shows a
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OWNER’S MANUAL TROUBLESHOOTING WARNING: Turn off heater CAUTION: Never use a wire, and let cool before servicing. Only needle, or similar object to clean Note: For additional help, visit DESA a qualified service person should ODS/pilot. This can damage ODS/ International’s technical service web site service and repair heater. pilot unit. at www.desatech.com. Note: All troubleshooting items are listed in order of operation. OBSERVED PROBLEM POSSIBLE CAUSE REMEDY When ignitor button is pressed,
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® UNVENTED NATURAL GAS FIREPLACE TROUBLESHOOTING Continued OBSERVED PROBLEM POSSIBLE CAUSE REMEDY Burner does not light after ODS/pilot is lit 1. Burner orifice clogged 1. Clean burner (see Cleaning and Mainte- nance, page 21) or replace burner orifice 2. Inlet gas pressure is too low 2. Contact local natural gas company 3. Burner orifice diameter is too small 3. Replace burner orifice 4. Thermopile leads disconnected or im- 4. Reconnect leads (see Wiring Diagram, properly connected page 20) 5.
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OWNER’S MANUAL 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. • If you cannot reach your gas supplier, call the fire department. IMPORTANT: Operating fireplace where impurities in air exist may create odors. Cleaning supplies, paint, paint remover, cigare
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AUTO ON OFF ® UNVENTED NATURAL GAS FIREPLACE WIRING DIAGRAM REPLACEMENT PARTS Note: For proper operation of optional ac- cessories, the wires from the switch to the Note: Use only original replacement parts. control must be connected exactly as shown. This will protect your warranty coverage for parts replaced under warranty. PARTS UNDER WARRANTY Contact authorized dealers of this product. If they can’t supply original replacement part(s), call DESA International’s Techni- cal Service Department
