UNVENTED (VENT-FREE) NATURAL GAS FIREPLACE OWNER’S OPERATION AND INSTALLATION MANUAL (Variably Controlled) Shown with optional cabinet mantel and hearth base 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. — Do not store or use gasoline or other flammable vapors and liquids in the vicinity of this or any other appliance.
CONTENTS SECTION PAGE Safety Information ................................................................................... 2 Product Identification .............................................................................. 4 Local Codes ............................................................................................. 5 Unpacking................................................................................................ 5 Product Features .............................................
SAFETY INFORMATION Continued 101920 WARNING ICON G 001 WARNINGS Continued WARNING: Any change to this fireplace or its controls can be dangerous. 1. Use only natural gas. Do not convert fireplace to use different fuel type. 2. 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.
PRODUCT IDENTIFICATION Rear Log (#2) Front Log (#1) Front Burner Rear Burner Gas Valve Bracket Base Gas Regulator Piezo Ignitor Gas Valve Assembly Control Knob Figure 1 - Log Base Assembly Top Outer Casing Louver Hood Firebox Support Rear Access Door Screen Assembly Side Access Door Bottom Louver Assembly Figure 2 - Fireplace 4 101920
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. Batterymarch Park Quincy, MA 02269 UNPACKING 1. Remove trim kit. Place the carton containing the fireplace unit on its back. Hold fireplace and pull the carton and pallet away. 2.
AIR FOR COMBUSTION AND VENTILATION WARNING ICON G 001 WARNING 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 and other fuel-burning appliances in your home. Today’s homes are built more energy efficient than ever. New materials, increased insulation, and new construction methods help reduce heat loss in homes.
AIR FOR COMBUSTION AND VENTILATION Continued DETERMINING 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 = ___________________ cu. ft.
AIR FOR COMBUSTION AND VENTILATION Continued VENTILATION AIR Ventilation Air from Inside Building 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 options 1 and 2, Figure 3). Follow the National Fuel Gas Code NFPA 54/ANSI Z223.1, Section 5.
INSTALLING NOTICE A qualified service person must install fireplace. Follow all local codes. WARNING ICON G 001 WARNING Never install the fireplace • in a bedroom or bathroom • in a recreational vehicle • where curtains, furniture, clothing, or other flammable objects are less than 36 inches from the front, top, or sides of the fireplace • in high traffic areas • in windy or drafty areas WARNING ICON G 001 CAUTION This fireplace creates warm air currents.
INSTALLING Continued ASSEMBLING AND ATTACHING BRASS TRIM Note: The instructions below show assembling and attaching brass trim to fireplace. 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. Locate four brass screws, two adjusting plates with set screws, and two shims in the hardware packet. 3. Align shim under adjusting plate as shown in Figure 5. 4.
INSTALLING INSTALLATION CLEARANCES Continued WARNING ICON G 001 WARNING Maintain the minimum clearances. If you can, provide 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. Clearances from the side of the fireplace opening to any combustible wall should not be less than 16 inches. B.
INSTALLING Continued 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 flexible gas line must be the last item installed on the gas piping. See Installing Gas Piping to Fireplace Location, page 16. 3. Place hearth base accessory against wall at installation location. Cut an access hole in hearth top to run flexible gas line to fireplace (see Figure 8).
INSTALLING Continued 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 (if any). Note: You can secure fireplace to hearth or floor. Open lower louver. Locate screw holes in bottom of base. Tighten wood screws through these holes and into hearth or floor. 9. Check all gas connections for leaks.
INSTALLING If installing in a corner, use dimensions shown in Figure 12 for the rough opening. 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. 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 flexible gas line must be the last item installed on the gas piping.
INSTALLING Continued Alternate Built-In Attachment Method: Nailing Flange Accessory If desiring to attach heater to wall studs, use nailing flange accessory. Note: You can not use brass trim if using the nailing flange. 1. Attach nailing flange accessory to each side of fireplace (see Figure 14). See Accessories, page 31, for nailing flange. 2. Carefully insert fireplace into rough opening. 3. Attach fireplace to wall studs using nails or wood screws through holes in nailing flange (see Figure 14). 4.
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.
A.G.A. Design-Certified Manual Shutoff Valve With 1/8" NPT Tap* INSTALLING Continued Approved Flexible Gas Line 3" Minimum From Gas Meter (5" W.C. to 10.5" W.C. Pressure) Tee Joint Sediment Trap Pipe Nipple Figure 16 - Gas Connection Cap * Purchase the optional A.G.A. design-certified manual shutoff valve from your dealer. See Accessories, page 31.
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. The flexible gas supply line connection to the manual shutoff valve should be accessible. 5.
INSTALLING Continued Test Pressures Equal To or Less Than 1/2 PSIG 1. Close manual shutoff valve (see Figure 19). 2. Pressurize supply piping system by either using compressed air or opening main gas valve located on or near gas meter. 3. Check all joints from gas meter to manual shutoff valve (see Figure 20). Apply mixture of liquid soap and water to gas joints. Bubbles forming show a leak. 4. Correct all leaks at once. Pressure Testing Fireplace Gas Connections 1.
INSTALLING INSTALLING LOGS Continued WARNING ICON G 001 WARNING 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. 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 modify logs. Only use logs supplied with fireplace.
INSTALLING WARNING ICON Continued G 001 WARNING You must operate this fireplace with the fireplace screen in place. Make sure fireplace screen is in place before running fireplace. 3. Install fireplace screen by slipping notches of fireplace screen over screws on front of fireplace (see Figure 23).
OPERATING FIREPLACE FOR YOUR SAFETY READ BEFORE LIGHTING WARNING ICON WARNING G 001 If you do not follow these instructions exactly, a fire or explosion may result causing property damage, personal injury or loss of life. A. This appliance has a pilot which must be lighted by hand. When lighting the pilot, follow these instructions exactly. B. BEFORE LIGHTING smell all around the appliance area for gas. Be sure to smell next to the floor because some gas is heavier than air and will settle on the floor.
OPERATING FIREPLACE Continued 4. Wait five (5) minutes to clear out any gas. Then smell for gas, including near the floor. If you smell gas, STOP! Follow “B” in the safety information above. If you don’t smell gas, go to the next step. 5. Turn control knob counterclockwise C-clockwise to the PILOT position. Press in control knob for five (5) seconds (see Figure 24, above). Note: If running fireplace for first time, there will be air in gas line.
OPERATING FIREPLACE Continued TO TURN OFF GAS TO APPLIANCE Shutting Off Fireplace Turn control knob clockwise Clockwise to the OFF position. Shutting Off Burners Only (pilot stays lit) Turn control knob clockwise Clockwise to the PILOT position. VARIABLE OUTPUT CONTROL OPERATION You can set the variable output control knob to any comfort level between HI and LO. The valve will adjust the heat output and flame height and maintain the comfort level you select.
INSPECTING BURNERS Check pilot flame pattern and burner flame patterns often. PILOT FLAME PATTERN Figure 26 shows a correct pilot flame pattern. Figure 27 shows an incorrect pilot flame pattern. The incorrect pilot flame is not touching the thermocouple. This will cause the thermocouple to cool. When the thermocouple cools, the fireplace will shut down.
CLEANING AND MAINTENANCE WARNING ICON G 001 WARNING Turn off fireplace and let cool before cleaning. WARNING ICON CAUTION 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. Fireplace may need more frequent cleaning due to excessive lint from carpeting, bedding material, etc.
TROUBLESHOOTING Continued OBSERVED PROBLEM POSSIBLE CAUSE When ignitor button is pressed, there is spark at ODS/pilot but no ignition 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 PILOT position 4. Air in gas lines when installed 5. ODS/pilot is clogged 6. Gas regulator setting is not correct ODS/pilot lights but flame goes out when control knob is released 1. Control knob not fully pressed in 2.
TROUBLESHOOTING Continued OBSERVED PROBLEM POSSIBLE CAUSE One or both burners do not light after ODS/pilot is lit 1. Burner orifice(s) clogged 2. Burner orifice(s) diameter is too small 3. Inlet gas pressure is too low 4. Mislocated crossover tube Delayed ignition of one or both burners 1. Manifold pressure is too low 2. Burner orifice(s) clogged 3. Mislocated crossover tube Burner backfiring during combustion 1. Burner orifice is clogged or damaged 2. Damaged burner 3.
TROUBLESHOOTING Continued WARNING ICON G 001 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.
SERVICE HINTS When gas pressure is too low • pilot will not stay lit • burners will have delayed ignition • fireplace will not produce specified heat When gas quality is bad • pilot will not stay lit • burners will produce flames and soot • fireplace will backfire when lit You may feel your gas pressure is too low or gas quality is bad. If so, contact your local natural gas supplier. SPECIFICATIONS BTU (Variable) 20,000/26,500 Type Gas Ignition Natural Gas Only Piezo Pressure Regulator Setting 3.
REPLACEMENT PARTS Note: Use only original replacement parts. 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 Technical Service Department at 1-800-DESA LOG (1-800-337-2564).
ILLUSTRATED PARTS BREAKDOWN Log Base Assembly 2 1 4 4-1 4-2 24 16 7-2 5 10 6 7 5 7-1 3 5 9 8 5 13 23 3 11 3 3 17 3 15 26 16 25 12 21 4-2 10 14 20 22 18 19 32 101920
PARTS LIST Log Base Assembly KEY NO. 1 2 3 4 4-1 4-2 5 6 7 7-1 7-2 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 This list contains replaceable parts used in your fireplace. When ordering parts, follow the instructions listed under Replacement Parts on page 30 of this manual.
ILLUSTRATED PARTS BREAKDOWN Fireplace 7 1 6 2 15 4 3 16 13 13 16 8 16 16 13 14 5 19 6 18 17 16 16 10 9 11 16 12 34 101920
PARTS LIST Fireplace This list contains replaceable parts used in your fireplace. When ordering parts, follow the instructions listed under Replacement Parts on page 30 of this manual. KEY NO.
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. We make no other warranty, expressed or implied.
