DESA INTERNATIONAL UNVENTED (VENT-FREE) NATURAL GAS FIREPLACE This appliance may be installed in an aftermarket* manufactured (mobile) home, where not prohibited by state or local codes.
CONTENTS SECTION PAGE Safety Information ................................................................................... 2 Product Identification .............................................................................. 4 Local Codes ............................................................................................. 5 Unpacking ................................................................................................ 5 Product Features ............................................
SAFETY INFORMATION Continued WARNING ICON G 001 WARNINGS Continued WARNING: Any change to this fireplace or its controls can be dangerous. 1. This appliance is only for use with the type of gas indicated on the rating plate. This appliance is not convertible for use with other gases. 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 Crossover Log Rear Log Top Middle Log Left Front Branch Rear Burner Front Burner Bottom Middle Log Right Front Branch Base Assembly Figure 1 - Log Base Assembly, Split Oak Set Top Louver Assembly Top Outer Casing Firebox Hood Firebox Support Rear Access Door Screen Assembly Side Access Door Bottom Louver Assembly 4 Figure 2 - Fireplace 103281
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 PRODUCT FEATURES 1. Place the carton containing the fireplace unit on its back. Hold fireplace and pull the carton and pallet away.
AIR FOR COMBUSTION AND VENTILATION WARNING ICON G 001 WARNING This heater shall not be installed in a confined space unless provisions are provided for adequate combustion and ventilation air. 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 WARNING ICON G 001 WARNING If the area in which the heater may be operated is smaller than that defined as an unconfined space, provide adequate combustion and ventilation air by one of the methods described in the National Fuel Gas Code, ANSI Z223.1, 1992, Section 5.3. VENTILATION AIR Ventilation Air From Inside Building This fresh air would come from an adjoining unconfined space.
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 This fireplace has a three-prong, grounded electrical plug.
INSTALLING Continued ASSEMBLING AND ATTACHING BRASS TRIM IMPORTANT: If you are recessing the firebox in a wall, do not attach brass trim at this time. See page 13. Note: The instructions below show assembling and attaching brass trim to fireplace. 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 for a cabinet mantel or 12 inches for a corner installation. B.
INSTALLING Continued 2. Install a properly grounded, 120 volt three-prong electrical outlet at fireplace location if an outlet is not there. If possible, locate outlet so cabinet mantel will cover it when installed (see Figure 8). 3. 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 7. Break off nailing flanges (see Figure 10) with hammer or pliers. Continued Nailing Flanges Figure 10 - Location of Nailing Flanges 8. Place cardboard or other protective material on top of hearth base. Carefully set fireplace on protective material, with back of fireplace inside mantel opening. 9. Attach flexible gas line to fireplace gas regulator. See Connecting Fireplace to Gas Supply, page 17. 10. Route blower electrical cord through side or rear access door of fireplace.
INSTALLING Continued BUILT-IN FIREPLACE INSTALLATION Built-in installation of this fireplace involves installing fireplace into a framed-in enclosure. This makes the front of fireplace flush with wall. If installing a mantel above the fireplace, but you must follow the clearances shown in Figure 15, page 15. Follow the instructions below to install the fireplace in this manner.
INSTALLING Continued 8. Attach fireplace to wall studs using nails or wood screws through holes in nailing flange (see Figure 14). 9. Check all gas connections for leaks. See Checking Gas Connections, page 18. 10. Install brass trim after final finishing and/or painting of wall (see Figure 6, page 10).
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 34.
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 (Split Oak Design Models) Continued WARNING Failure to position the parts in accordance with these diagrams or failure to use only parts specifically approved with this heater may result in property damage or personal injury. 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 heater. 1.
INSTALLING Continued 4. Place the crossover log (#5) on the back log and the top middle log. Make sure the peg on the rear log is in the hole in the bottom of the crossover log. The crossover log should fit in the cutout of the top middle log (see Figure 25). Crossover Log (#4) Hole Cutout Peg Figure 25 - Installing Crossover Log (#5) WARNING ICON G 001 WARNING You must operate this fireplace with the fireplace screen in place. Make sure fireplace screen is in place before running fireplace. 5.
OPERATING FIREPLACE ThermostatControlled Models FOR YOUR SAFETY READ BEFORE LIGHTING WARNING ICON G 001 WARNING 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.
OPERATING FIREPLACE ThermostatControlled Models Continued 6. Continue pressing control knob in. Press and release ignitor button. This will light pilot. The pilot is attached to the front burner. If needed, keep pressing ignitor button until pilot lights. Note: If pilot does not stay lit, contact a qualified service person or gas supplier for repairs. Until repairs are made, light pilot with match. To light pilot with match, see Manual Lighting Procedure, below. 7.
OPERATING FIREPLACE Manually-Controlled Models FOR YOUR SAFETY READ BEFORE LIGHTING WARNING ICON G 001 WARNING 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.
OPERATING FIREPLACE Manually-Controlled Models Continued 6. Continue pressing control knob in. Press and release ignitor button. This will light pilot. The pilot is attached to the front burner. If needed, keep pressing ignitor button until pilot lights. Note: If pilot does not stay lit, contact a qualified service person or gas supplier for repairs. Until repairs are made, light pilot with match. To light pilot with match, see Manual Lighting Procedure, below. 7.
OPERATING FIREPLACE All Models BLOWER OPERATION WARNING This fireplace has a three-prong, grounded electrical plug. This plug helps protect you against electrical shock. Only connect plug to a properly grounded, three-prong receptacle. Do not cut or remove the grounding prong from this plug. Locate the blower switch by opening lower louver on fireplace. Blower switch is located at lower left inside louver door. Thermostat-controlled blowers have three settings: ON, OFF, and AUTO.
INSPECTING BURNERS Continued FRONT BURNER FLAME PATTERN Figure 33 shows correct front burner flame pattern. Figure 34 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 flame pattern shows yellow tipping, your fireplace could produce increased levels of carbon monoxide. Follow instructions at bottom of this page. Yellow flame on rear burner is normal.
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 POSSIBLE PROBLEM CAUSE One or both burners do 1. Burner orifice(s) not light after ODS/ clogged pilot is lit 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.
TECHNICAL SERVICE SERVICE HINTS You may have further questions about installation, operation, or troubleshooting. If so, contact DESA International’s Technical Service Department at 1-800-DESA LOG (1-800-337-2564).
SPECIFICATIONS Btu (Low/High) 20,000/28,000 Type Gas Natural Gas Only Ignition Piezo Manifold Pressure 3.4" W.C. Inlet Gas Pressure (in. of water) Maximum 10.5" Minimum 5" Shipping Weight WIRING DIAGRAMS 128 lbs. Thermostat Model 122 lbs. Manual Model CAUTION: Label all wires prior to disconnection when servicing controls. Wiring errors can cause improper and dangerous operation. Verify proper operation after servicing. Fan Switch (Off/On) Off 1 2 On Black 110/115 V.A.C.
ACCESSORIES Purchase these fireplace accessories from your local dealer. If they can not supply 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.
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.
ILLUSTRATED PARTS BREAKDOWN 4 5 Log Base Assembly Variable ManuallyControlled Models 3 2 7 1L 7-1 7-2 27 1R 13 19 8 18 9 10 8 6 8 23 12 11 8 16 26 22 6 14 6 21 6 24 6 29 15 30 VSGF28NV CSGF28NV 25 20 32 31 19 28 17 36 103281
PARTS LIST Log Base Assembly Variable ManuallyControlled Models This list contains replaceable parts used in your fireplace. When ordering parts, follow the instructions listed under Replacement Parts on page 32 of this manual. VSGF28NV CSGF28NV KEY NO.
ILLUSTRATED PARTS BREAKDOWN Log Base Assembly ThermostatControlled Models 4 5 3 2 7 1L 7-1 7-2 27 1R 19 8 13 9 10 6 8 12 11 8 16 26 6 14 6 29 20 6 18 6 28 15 21 19 24 7-2 13 25 VSGF28NTA CSGF28NTA 17 22 23 38 103281
PARTS LIST Log Base Assembly ThermostatControlled Models This list contains replaceable parts used in your fireplace. When ordering parts, follow the instructions listed under Replacement Parts on page 32 of this manual. VSGF28NTA CSGF28NTA KEY NO.
VSGF28NV CSGF28NV VSGF28NTA CSGF28NTA ILLUSTRATED PARTS BREAKDOWN Fireplace 7 10 17 1 6 16 16 11 9 2 4 12 8 3 25 25 14 13 16 16 16 25 15 5 30 6 21 16 26 19 22 7 16 29 23 18 28 16 20 27 24 40 103281
PARTS LIST Fireplace This list contains replaceable parts used in your fireplace. When ordering parts, follow the instructions listed under Replacement Parts on page 32 of this manual. VSGF28NV/CSGF28NV VSGF28NTA/CSGF28NTA KEY NO.
NOTES 42 103281
NOTES 43 103281
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.
