® UNVENTED (VENT-FREE) NATURAL GAS FIREPLACE OWNER’S OPERATION AND INSTALLATION MANUAL Variable ManuallyControlled Model VSGF28NVA ThermostaticallyControlled Model VSGF28NTC with Split Oak Logs ¢¢¢¢¢¢ ,,,,,, QQQQQQ ,,,,,, QQQQQQ ¢¢¢¢¢¢ ,,,,,, QQQQQQ ¢¢¢¢¢¢ ,,,,,, QQQQQQ ¢¢¢¢¢¢ ,,,,,, QQQQQQ ¢¢¢¢¢¢ ,,,,,, QQQQQQ ¢¢¢¢¢¢ ,,,,,, QQQQQQ ¢¢¢¢¢¢ ,,,,,,,,,, QQQQQQQQQQ ¢¢¢¢¢¢¢¢¢¢ ,,, QQQ ¢¢¢ ,,,,,, QQQQQQ ¢¢¢¢¢¢ ,,,,,,,,,, QQQQQQQQQQ ¢¢¢¢¢¢¢¢¢¢ ,,, QQQ ¢¢¢ ,,,,,, QQQQQQ ¢¢¢¢¢¢ ,,,,,,,,,, QQQQQQQQQQ ¢¢¢¢¢¢¢¢¢¢ ,,,
® UNVENTED NATURAL GAS FIREPLACE SAFETY INFORMATION Due to high temperatures, the appliance should be located out of traffic and away from furniture and draperies. WARNINGS IMPORTANT: Read this owner’s manual carefully and completely before trying to assemble, operate, or service this fireplace. Improper use of this fireplace can cause serious injury or death from burns, fire, explosion, electrical shock, and carbon monoxide poisoning.
OWNER’S MANUAL PRODUCT IDENTIFICATION LOCAL CODES Crossover Log Rear Log Middle Log 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 ANS Z223.1, also known as NFPA 54*. *Available from: American National Standards Institute, Inc. 1430 Broadway New York, NY 10018 Rear Burner National Fire Protection Association, Inc.
® UNVENTED NATURAL GAS FIREPLACE PRODUCT FEATURES OPERATION This vent-free fireplace is clean burning. It requires no outside venting. There is no heat loss out a vent or up a chimney. Heat is generated by both realistic flames and glowing embers. When used without the blower, the fireplace requires no electricity making it ideal for emergency backup heat. SAFETY DEVICE This fireplace has a pilot with an Oxygen Depletion Sensing (ODS) safety shutoff system.
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 = _________________ cu. ft.
® UNVENTED NATURAL GAS FIREPLACE 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). You can also remove door into adjoining room (see option 3, Figure 3).
OWNER’S MANUAL INSTALLATION WARNING: A qualified service person must install fireplace. Follow all local codes. NOTICE: This heater is intended for use as supplemental heat. Use this heater along with your primary heating system. Do not install this heater as your primary heat source. If you have a central heating system, you may run system’s circulating blower while using heater. This will help circulate the heat throughout the house.
® UNVENTED NATURAL GAS FIREPLACE INSTALLATION CONVENTIONAL FIREPLACE INSTALLATION Trim Hanging Screws Continued ASSEMBLING AND ATTACHING OPTIONAL BRASS TRIM (Included with Mantel Accessory) 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 6. 4.
OWNER’S MANUAL INSTALLATION Continued 4. 5. 6. 7. 8. 9. Place hearth base accessory against wall at installation location. Cut an access hole in hearth top to run gas line to fireplace (see Figure 9, page 8). Make sure to locate access hole so cabinet mantel will cover it when installed. Note: You can secure base to floor using wood screws. Countersink screw heads and putty over. Route gas line through access hole in hearth base. Center cabinet mantel on hearth base (see Figure 10).
® UNVENTED NATURAL GAS FIREPLACE INSTALLATION Mantel Clearances for Built-In Installation If placing mantel above built-in fireplace, you must meet minimum clearance between mantel shelf and top of fireplace opening. If your installation does not meet the below minimum clearances, you must: • raise the mantel to an acceptable height, OR • remove the mantel.
OWNER’S MANUAL Continued Installation must include an equipment shutoff valve, and a plugged 1/8" NPT tap. Locate NPT tap within reach for test gauge hook up. NPT tap must be upstream from fireplace (see Figure 17). IMPORTANT: Install equipment shutoff valve in an accessible location. The equipment shutoff valve is for turning on or shutting off the gas to the appliance. Check your building codes for any special requirements for locating equipment shutoff valve to fireplaces.
® UNVENTED NATURAL GAS FIREPLACE INSTALLATION Continued CHECKING GAS CONNECTIONS WARNING: Test all gas piping and connections for leaks after installing or servicing. Correct all leaks at once. 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 once. Test Pressures Equal To or Less Than 1/2 PSIG (3.5 kPa) Pressure Testing Fireplace Gas Connections 1. 1. 2. 3. 4.
OWNER’S MANUAL INSTALLATION Continued INSTALLING LOGS Crossover Log (#4) Front Log (#1) Notch Cutout Hole Peg 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. CAUTION: Do not remove the metal data plates attached to the heater base assembly. The data plates contain important warranty information. Each log is marked with a number.
® UNVENTED NATURAL GAS FIREPLACE LIGHTING INSTRUCTIONS OPERATING FIREPLACE WARNING: You must operate this fireplace with the fireplace screen in place. Make sure fireplace screen is installed before running fireplace. Thermostat-Controlled Models FOR YOUR SAFETY READ BEFORE LIGHTING NOTICE: During initial operation of new fireplace, burning logs will give off a paper-burning smell. Orange flame will also be present. Open window to vent smell. Operate fireplace on HI position to burn off odor.
OWNER’S MANUAL OPERATING FIREPLACE Manually-Controlled Models FOR YOUR SAFETY READ BEFORE LIGHTING Continued TO TURN OFF GAS TO APPLIANCE Shutting Off Fireplace Turn control knob clockwise the OFF position. Clockwise to Shutting Off Burners Only (pilot stays lit) Turn control knob clockwise the PILOT position. Clockwise to THERMOSTAT CONTROL OPERATION You can set the thermostat control knob to any comfort level between HI and LO.
® UNVENTED NATURAL GAS FIREPLACE VARIABLE CONTROL OPERATION OPERATING FIREPLACE Continued 7. 8. Keep control knob pressed in for 30 seconds after lighting pilot. After 30 seconds, release control knob. Note: If pilot goes out, repeat steps 3 through 7. • If control knob does not pop out when released, contact a qualified service person or gas supplier for repairs. Slightly depress and turn control knob counterclockwise C-clockwise to the HIGH position. Both burners should light.
OWNER’S MANUAL OPERATING FIREPLACE Continued BLOWER OPERATION MODEL VSGF28NTC 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.
® UNVENTED NATURAL GAS FIREPLACE INSPECTING BURNERS CLEANING AND MAINTENANCE 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: 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.
OWNER’S MANUAL TROUBLESHOOTING WARNING: Turn off fireplace and let cool before servicing. Only a qualified service person should service and repair fireplace. Note: For additional help, visit DESA International’s technical service web site at www.desatech.com. CAUTION: Never use a wire, needle, or similar object to clean ODS/pilot. This can damage ODS/ pilot unit. Note: All troubleshooting items are listed in order of operation.
® UNVENTED NATURAL GAS FIREPLACE TROUBLESHOOTING Continued OBSERVED PROBLEM POSSIBLE CAUSE REMEDY One or both burners do not light after ODS/ pilot is lit 1. Burner orifice(s) clogged 1. Clean burner(s) (see Cleaning and Maintenance, page 18) or replace burner orifice(s) 2. Replace burner orifice(s) 3. Contact local natural gas company 4. Contact qualified service person 2. Burner orifice(s) diameter is too small 3. Inlet gas pressure is too low 4.
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.
® UNVENTED NATURAL GAS FIREPLACE TECHNICAL SERVICE SERVICE HINTS ACCESSORIES When Gas Pressure Is Too Low 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). • pilot will not stay lit • burners will have delayed ignition • fireplace will not produce specified heat Purchase these fireplace accessories from your local dealer.
OWNER’S MANUAL ACCESSORIES Continued SLIM HEARTH BASE (Not Shown) G3005J Series - Jade Marble Laminate G3005S Series - Sandstone Marble Laminate G3005B Series - Black Onyx Marble Laminate EQUIPMENT SHUTOFF VALVE - GA5010 For all models. Equipment shutoff valve with 1/8" NPT tap. Fits 1/2" NPT pipe. Mantel Trim Hearth Base Trim The slim hearth base allows you to further customize your fireplace.
® UNVENTED NATURAL GAS FIREPLACE ILLUSTRATED PARTS BREAKDOWN 4 2 LOG BASE ASSEMBLY 3 VARIABLE MANUALLYCONTROLLED MODEL 1 VSGF28NVA 6 26 18 12 7 17 8 9 7 5 7 22 11 10 7 15 25 21 5 13 5 20 5 23 5 28 14 29 24 19 31 30 32 18 27 16 For more information, visit www.desatech.
OWNER’S MANUAL PARTS LIST This list contains replaceable parts used in your fireplace. When ordering parts, follow the instructions listed under Replacement Parts on page 22 of this manual. LOG BASE ASSEMBLY VARIABLE MANUALLYCONTROLLED MODEL VSGF28NVA KEY NO.
® UNVENTED NATURAL GAS FIREPLACE ILLUSTRATED PARTS BREAKDOWN 7 17 1 6 FIREPLACE VSGF28NVA 9 2 16 12 4 8 3 16 11 11 14 16 16 16 11 15 5 7 16 10 18 16 10 13 For more information, visit www.desatech.
OWNER’S MANUAL PARTS LIST This list contains replaceable parts used in your fireplace. When ordering parts, follow the instructions listed under Replacement Parts on page 22 of this manual. FIREPLACE VSGF28NVA KEY NO.
® UNVENTED NATURAL GAS FIREPLACE ILLUSTRATED PARTS BREAKDOWN 4 2 LOG BASE ASSEMBLY THERMOSTATCONTROLLED MODEL 3 1 VSGF28NTC 6 6 26 18 12 7 8 9 5 7 11 10 7 15 25 5 13 5 28 19 5 17 5 27 14 29 20 18 23 6-2 12 24 16 21 For more information, visit www.desatech.
OWNER’S MANUAL PARTS LIST This list contains replaceable parts used in your fireplace. When ordering parts, follow the instructions listed under Replacement Parts on page 22 of this manual. LOG BASE ASSEMBLY THERMOSTATCONTROLLED MODEL VSGF28NTC KEY NO.
® UNVENTED NATURAL GAS FIREPLACE ILLUSTRATED PARTS BREAKDOWN 7 17 1 6 FIREPLACE VSGF28NTC 9 2 16 12 4 8 16 3 11 11 14 24 16 16 16 19 24 11 15 5 21 16 7 10 18 16 16 10 26 22 13 20 25 23 24 For more information, visit www.desatech.
OWNER’S MANUAL PARTS LIST This list contains replaceable parts used in your fireplace. When ordering parts, follow the instructions listed under Replacement Parts on page 22 of this manual. FIREPLACE VSGF28NTC 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.
