UNVENTED (VENT-FREE) GAS FIREPLACE OWNER’S OPERATION AND INSTALLATION MANUAL Shown with optional cabinet mantel, hearth base and trim accessories. EFS33NR, EFS33NRA, EFS33PR, EFS33PRA VSGF33NR, VSGF33NRA, VSGF33PR, VSGF33PRA REMOTE-READY FIREPLACE SYSTEM 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.
WARNING: Improper installation, adjustment, alteration, service or maintenance can cause injury or property damage. Refer to this manual for correct installation and operational procedures. For assistance or additional information consult 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.
SAFETY INFORMATION WARNING: This product contains and/or generates chemicals known to the State of California to cause cancer or birth defects or other reproductive harm. 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.
SAFETY INFORMATION Continued 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. Do not place propane/LP supply tank(s) inside any structure. Locate propane/LP supply tank(s) outdoors (propane/LP units only). 3.
LOCAL CODES PRODUCT FEATURES Install and use heater with care. Follow all local codes. In the absence of local codes, use the latest edition of The National Fuel Gas Code ANSI Z223.1/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 Note: Where listed vented decorative logs are required, thermostat operation is not permitted.
AIR FOR COMBUSTION AND VENTILATION WARNING: This heater shall not be installed in a confined space or unusually tight construction 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. Todayʼs 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 Example: Space size 20 ft. (length) x 16 ft. (width) x 8 ft. (ceiling height) = 2,560 cu. ft. (volume of space) If additional ventilation to adjoining room is supplied with grills or openings, add the volume of these rooms to the total volume of the space. 2. Multiply the space volume by 20 to determine the maximum Btu/Hr the space can support. __________ (volume of space) x 20 = (Maximum Btu/Hr the space can support) Example: 2,560 cu. ft.
AIR FOR COMBUSTION AND VENTILATION Continued Ventilation Air From Outdoors Provide extra fresh air by using ventilation grills or ducts. You must provide two permanent openings: one within 12" of the ceiling and one within 12" of the floor. Connect these items directly to the outdoors or spaces open to the outdoors. These spaces include attics and crawl spaces. Follow the National Fuel Gas Code, ANSI Z223.1/NFPA 54, Section 5.
INSTALLATION Continued WARNING: This appliance is equipped for (natural or propane/LP) gas. Field conversion is not permitted. ELECTRICAL HOOKUP (Models GA3700 Series and GA3700T Series Blower Accessories and GA3555 Internal Duplex Kit) This fireplace accepts a blower assembly with an electrical cord. The electrical cord is five feet in length. You must locate fireplace within reach of a 120 volt grounded electrical outlet. If not, you must install an electrical outlet within reach of fireplace power cord.
INSTALLATION CONVENTIONAL FIREPLACE INSTALLATION Continued INSTALLATION CLEARANCES 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 Clearances For Side Combustible Material, Side Wall and Ceiling A. Clearances from the side of the fireplace cabinet to any combustible material and wall should follow diagram in Figure 8.
INSTALLATION Continued 5. Route flexible gas line through access hole in hearth base. 6. Center cabinet mantel on hearth base (see Figure 10). Make sure mantel is flush against wall. 7. Break off nailing flanges (see Figure 11) with hammer or pliers. 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 from fireplace gas regulator to gas supply.
INSTALLATION Continued 1. Frame in rough opening. Use dimensions shown in Figure 13 for the rough opening. If installing in a corner, use dimensions shown in Figure 14 for the rough opening. The height is 33" which is the same as the wall opening above. 2. If using blower, install and properly ground GA3555, three-prong 120 volt electrical outlet, in fireplace. Follow instructions included in kit. 3. Install gas piping into fireplace location.
INSTALLATION Continued Note: All vertical measurements are from top of fireplace opening to bottom of mantel shelf. Mantel Shelf 10" 8" 6" 2 1/2" 21" 19" 13" 16" Minimum NonCombustible Material Figure 16 - Minimum Mantel Clearances for Built-In Installation INSTALLING GAS PIPING TO FIREPLACE LOCATION WARNING: This appliance requires a 1/2" NPT (National Pipe Thread) inlet connection to the pressure regulator. WARNING: A qualified service person must connect fireplace to gas supply.
INSTALLATION CONNECTING FIREPLACE TO GAS SUPPLY Continued Installation must include an equipment shutoff valve, union and plugged 1/8" NPT tap. Locate NPT tap within reach for test gauge hook up. NPT tap must be upstream from fireplace (see Figure 18). 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.
INSTALLATION CHECKING GAS CONNECTIONS Continued NOTICE: Most building codes do not permit concealed gas connections. A flexible gas line is provided to allow accessibility from the fireplace (see Figure 20). The flexible gas supply line connection to the equipment shutoff valve should be accessible. 4. Attach the flexible gas line to gas supply (see Figure 20). Check tightness of flexible gas line attached to gas regulator of fireplace (see Figure 20). 5. Check all gas connections for leaks.
INSTALLATION Continued Test Pressures Equal To or Less Than 1/2 PSIG (3.5 kPa) 1. Close equipment shutoff valve (see Figure 21). 2. Pressurize supply piping system by either opening propane/LP supply tank valve for propane/LP gas or opening main gas valve located on or near gas meter for natural gas or using compressed air. 3. Check all joints from gas meter to equipment shutoff valve for natural gas or propane/LP supply to equipment shutoff valve for propane/LP (see Figures 22 and 23).
INSTALLATION Peg Continued 1. Place front log on top of the grate. Make sure the notches in the bottom of the log fit over the grate prongs (see Figure 24). Push back of log flush with metal grate bar. 2. Rest middle log behind metal posts on front burner. Make sure the grooves in the bottom of the log fit over the grate. Bring the log forward next to the metal posts (see Figure 25). 3. Slide the grooves in the back of the rear log against the rear grate prongs.
INSTALLATION Front Log Continued INSTALLING LOGS (MODELS EFS33NRA, EFS33PRA, VSGF33NRA AND VSGF33PRA) 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 data plates attached to the heater base assembly. The data plates contain important safety and warranty information. It is very important to install these logs exactly as instructed.
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. Be sure to smell next to the floor because some gas is heavier than air and will settle on the floor. WHAT TO DO IF YOU SMELL GAS • Do not try to light any appliance.
OPERATING FIREPLACE TO TURN GAS OFF TO APPLIANCE Continued 7. With control knob pressed 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. 8.
OPERATING FIREPLACE Continued Flame Adjustment Knob F T ON LO PI L O Selector Switch in Remote Position (Optional HandHeld Remote Control) OF ON OFF REMOTE HI Control Knob in On Position Figure 35 - Setting the Selector Switch, Control Knob and Flame Adjustment Knob for Hand-Held Remote Operation ON/OFF SERIES (MODELS GHRCB AND CGHRCB) Hold the control button on the hand-held remote until burner turns on. Hold the control button again until burner turns off (see Figure 36).
OPERATING FIREPLACE INSPECTING BURNERS Continued Check pilot flame pattern and burner flame patterns often. 2. The receiver continuously receives signals from the hand-held remote to control the room temperature. If the hand-held remote is misplaced, obstructed or for any reason cannot transmit to the receiver, the receiver will shut off the fireplace after 8 minutes.
INSPECTING BURNERS Continued FRONT BURNER FLAME PATTERN WARNING: If front burner flame pattern shows yellow tipping, your fireplace could produce increased levels of carbon monoxide. Follow instructions below. Yellow flame on rear burner is normal. NOTICE: Do not mistake orange flames with yellow tipping. Dirt or other fine particles are burned by fireplace, causing brief patches of orange flame. Figure 40 shows correct front burner flame pattern. Figure 41 shows incorrect front burner flame pattern.
CLEANING AND MAINTENANCE LOGS Continued 2. Inspect burner, pilot and primary air inlet holes on injector holder for dust and dirt (see Figure 42). 3. Blow air through the ports/slots and holes in the burner. 4. Check the injector holder located at the end of the burner tube again. Remove any large particles of dust, dirt, lint or pet hair with a soft cloth or vacuum cleaner nozzle. 5. Blow air into the primary air holes on the injector holder. 6.
TROUBLESHOOTING WARNING: Turn off and unplug heater and let cool before servicing. Only a qualified service person should service and repair heater. 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. OBSERVED PROBLEM POSSIBLE CAUSE REMEDY When ignitor button is pressed, there is no spark at ODS/pilot 1. Ignitor electrode not connected to ignitor cable 2. Ignitor cable pinched or wet 1.
TROUBLESHOOTING Continued OBSERVED PROBLEM POSSIBLE CAUSE REMEDY ODS/pilot lights but flame goes out when control knob is released 1. Control knob not fully pressed in 2. Control knob not pressed in long enough 1. Press in control knob fully 2. After ODS/pilot lights, keep control knob pressed in 30 seconds 3. Fully open equipment shutoff valve 4. A) Contact local natural or propane/LP gas company 3. Equipment shutoff valve not fully open 4.
TROUBLESHOOTING Continued OBSERVED PROBLEM POSSIBLE CAUSE REMEDY Moisture/condensation noticed on windows 1. Not enough combustion/ventilation air 1. Refer to Air for Combustion and Ventilation requirements (page 6) Heater produces a whistling noise when burners are lit 1. Turning control knob to HI position when burners are cold 2. Air in gas line 1. Turn control knob to LO position and let warm up for a minute 2. Operate burners until air is removed from line.
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 heater where impurities in air exist may create odors.
REPLACEMENT PARTS SERVICE HINTS Note: Use only original replacement parts. This will protect your warranty coverage for parts replaced under warranty. When Gas Pressure Is Too Low • pilot will not stay lit • burners will have delayed ignition • heater will not produce specified heat • propane/LP gas supply may be low You may feel your gas pressure is too low. If so, contact your local propane/LP or natural gas supplier. PARTS UNDER WARRANTY Contact authorized dealers of this product.
ILLUSTRATED PARTS BREAKDOWN LOG BASE ASSEMBLY MODELS EFS33NR, EFS33NRA, VSGF33NR, VSGF33NRA, EFS33PR, EFS33PRA, VSGF33PR AND VSGF33PRA 2c LOGS FOR "NON-A" MODELS 2d 1c 2b 2a 6 1b 1a 4 3 9 7 LOGS FOR "A" MODELS 12 8 5 7 11 10 7 15 19 25 26 20 28 5 22 13 23 16 5 17 14 12 27 21 24 22 5 5 30 www.desatech.
PARTS LIST This list contains replaceable parts used in your fireplace. When ordering parts, follow the instructions listed under Replacement Parts on page 29 of this manual. KEY EFS33NR NO.
ILLUSTRATED PARTS BREAKDOWN FIREPLACE MODELS EFS33NR, EFS33NRA, VSGF33NR, VSGF33NRA, EFS33PR, EFS33PRA, VSGF33PR AND VSGF33PRA 7 17 1 6 9 12 2 16 4 8 3 16 11 14 11 16 16 16 15 11 5 7 16 18 10 16 10 13 32 www.desatech.
PARTS LIST FIREPLACE MODELS EFS33NR, EFS33NRA, VSGF33NR, VSGF33NRA, EFS33PR, EFS33PRA, VSGF33PR AND VSGF33PRA This list contains replaceable parts used in your fireplace. When ordering parts, follow the instructions listed under Replacement Parts on page 29 of this manual. KEY NO.
ACCESSORIES NOTICE: All accessories may not be available for all fireplace models. Purchase these heater accessories from your local dealer. If they can not supply these accessories, call DESA Heating Products at 1-866-672-6040 for referral information. You can also write to the address listed on the back page of this manual.
ACCESSORIES Continued Hearth Base Trim CORNER HEARTH BASE Mantel Trim G3008F Series - Walnut Finished G3009U Series - Unfinished G3010F Series - Oak Finished For all models. The corner hearth base is designed for use with the corner mantels to create a handsome riser for the fireplace. Dimensions (WxHxD): 6" x 52 1/2" x 23 3/4" HARDWOOD HEARTH BASE GC3333F Series- Walnut Finished GC3334U Series - Unfinished GC3335F Series - Oak Finished with Medium Stain G3004W Series - Off White Paint For all models.
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.