UNVENTED (VENT-FREE) BAY FRONT GAS LOG FIREPLACE OWNER’S OPERATION AND INSTALLATION MANUAL Patent Pending A OTU FFO NO Fireplace Shown With Optional Mantel Models CF26PTA and CF26NTA 19,000 to 26,000 Btu/Hr Thermostat Control 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.
Table of Contents Safety Information................................................ 2 Local Codes......................................................... 4 Unpacking............................................................ 4 Product Identification............................................ 5 Product Features.................................................. 5 Air For Combustion and Ventilation...................... 5 Installation............................................................
SAFETY INFORMATION Continued 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.
Product Identification Fireplace Cabinet Brick Liner Logs Heater Controls (Inside Door) Screen Figure 1 - Vent-Free Propane/LP Gas Compact Fireplace Product Features Safety Pilot This fireplace has a pilot with an Oxygen Depletion Sensing (ODS) safety shutoff system. The ODS/pilot is a required feature for vent-free room fireplaces. The ODS/pilot shuts off the fireplace if there is not enough fresh air. Piezo Ignition System This fireplace has a piezo ignitor.
AIR FOR COMBUSTION AND VENTILATION Continued Unusually Tight Construction The air that leaks around doors and windows may provide enough fresh air for combustion and ventilation. However, in buildings of unusually tight construction, you must provide additional fresh air. Unusually tight construction is defined as construction where: a.
AIR FOR COMBUSTION AND VENTILATION Continued The space in the above example is a confined space because the actual Btu/Hr used is more than the maximum Btu/Hr the space can support. You must provide additional fresh air. Your options are as follows: A. Rework worksheet, adding the space of an adjoining room. If the extra space provides an unconfined space, remove door to adjoining room or add ventilation grills between rooms. See Ventilation Air From Inside Building. B. Vent room directly to the outdoors.
Installation 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. In the event of a power outage, you can use this heater as your primary heat source. WARNING: A qualified service person must install fireplace. Follow all local codes.
Installation Continued An optional blower kit is available from your dealer. See Accessories, page 27. If planning to use blower, locate fireplace near an electrical outlet. Note: When installing fireplace directly on carpeting, tile or other combustible material, other than wood flooring, the fireplace shall be installed on a metal or wood panel extending the full width and depth of the fireplace. Minimum Clearances For Side Combustible Material, Side Wall and Ceiling A.
Nails or Wood Screws Installation Continued 6. If the optional blower has been installed connect blower to electrical source. Option one: Route blower electrical cord through side or rear access door of fireplace. Plug electrical cord into electrical outlet. Option two: Have a licensed electrician connect blower to electrical source at junction box inside fireplace. 7. Bend four nailing flanges on outer casing with pliers (see Figure 7). 8.
Installation Set Screws Continued Note: All vertical measurements are from top of fireplace opening to bottom of mantel shelf. Slot Top Trim Mantel Shelf Shim 10" 8" Adjusting Plate 6" 2 1/2" Mitered Edge Side Trim Slot Figure 9 - Assembling Trim Minimum NonCombustible Material 21" 19" 16" 13" OPTIONAL MANTEL Installation Figure 8 - Minimum Mantel Clearances for Built-In Installation Note: Refer to instructions provided with the mantel for assembly instructions.
Installation Installing Blower Assembly GA3450TA Continued 3. Assemble trim kit. See Assembling Trim, page 11. 4. Place trim on the shoulder screws located on the side and top of the fireplace. Firmly snap the trim over the shoulder screws on fireplace (see Figure 13). 5. Place mantel base close to wall in desired fireplace location. 6. Install gas line. See Connecting To Gas Supply, page 15 7. Carefully place fireplace on mantel base and center left to right. Check for gas leaks.
Installation Continued 8. Insert the 4 wire harness into one of the round holes in the rear of the blower control shield and through the rectangular hole in the front of shield (see Figure 15). 9. Reconnect red wire to the AUTO switch position. Reconnect blue wire to the ON switch position. Reconnect green and white wires to the power cord. 10. Install the switch plate on the blower control shield with 2 - #10 screws provided (see Figure 16).
Installation Continued For Built-In Installation WARNING: A licensed electrician must connect the wiring harness to electrical supply following all local codes. Electrician must provide a clamp on the box cover to secure the wiring. Wiring should be routed through the bushing in the hole on the outer casing of heater.
Installation Continued Fan Switch (Auto/Off/On) Auto 1 2 Blue Off 3 110/115 V.A.C. On Black Green White Red Thermostat Switch (N.O.) Blue Blower Motor Red White Green Figure 18 - Wiring Diagram For Fan Accessory Built-In Installation CONNECTING TO GAS SUPPLY WARNING: This appliance requires a 1/2" NPT (National Pipe Thread) inlet connection to the pressure regulator. WARNING: A qualified service person must connect heater to gas supply. Follow all local codes.
CONNECTING FIREPLACE TO GAS SUPPLY Installation 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 heater (see Figure 20). 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 Continued 3. Check all gas connections for leaks. See Checking Gas Connections. 4. Feed flexible gas line into fireplace base area. Make sure the entire flexible gas line is in fireplace mantel base area. CAUTION: Avoid damage to regulator. Hold gas regulator with wrench when connecting it to gas piping and/or fittings. CHECKING GAS CONNECTIONS WARNING: Test all gas piping and connections, internal and external to unit, for leaks after installing or servicing. Correct all leaks at once.
INSTALLING LOGS 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: After installation and periodically thereafter, check to ensure that no flame comes in contact with any log. With the heater set to HI, check to see if flames contact any log. If so, reposition logs according to the log installation instructions in this manual.
Operating Fireplace FOR YOUR SAFETY READ BEFORE LIGHTING 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.
Operating Fireplace Continued TO TURN OFF GAS TO APPLIANCE Shutting Off Heater Turn control knob clockwise position. Pilot Burner THERMOSTAT CONTROL OPERATION The thermostat control knob can be set to any comfort level between HI and LO. The thermostat will gradually modulate the heat output and flame height from higher to lower settings or pilot, in order to maintain the comfort level you select.
Inspecting Burners Continued BURNER PRIMARY AIR HOLES Air is drawn into the burner through the holes in the fitting at the burner entrance. These holes may become blocked with dust or lint. Periodically inspect these holes for any blockage and clean if needed. Blocked air holes will create soot. main burner Periodically inspect all burner flame holes with the heater running. All slotted burner flame holes should be open with yellow flame present.
CLEANING AND MAINTENANCE Continued Clean the pilot assembly also. A yellow tip on the pilot flame indicates dust and dirt in the pilot assembly. There is a small pilot air inlet hole about 2" from where the pilot flame comes out of the pilot assembly (see Figure 36). With the unit off, lightly blow air through the air inlet hole. You may blow through a drinking straw if compressed air is not available.
Troubleshooting OBSERVED PROBLEM When ignitor button is pressed, there is spark at ODS/pilot but no ignition Continued POSSIBLE CAUSE 1. Gas supply turned off or equipment 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. Depleted gas supply (propane/ LP only) 6. ODS/pilot is clogged 7.
Troubleshooting OBSERVED PROBLEM Continued POSSIBLE CAUSE Delayed ignition of burner 1. Manifold pressure is too low 2. Burner orifice(s) clogged Burner backfiring during combustion 1. Burner orifice is clogged or damaged 2. Damaged burner 3. Gas regulator defective Slight smoke or odor during initial operation 1. Not enough air 2. Gas regulator defective 3. Residues from manufacturing processes and logs curing REMEDY 1. Contact local natural or propane/LP gas company 2.
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.
Specifications CF26NTA • Rating: 19,000/26,000 Btu/hr • Gas Type: Natural • Ignition: Piezo • Manifold Pressure: 3.5" w.c. • Inlet Gas Pressure (in. of water)*: Maximum - 10.5", Minimum - 5.5" • Firebox Dimensions (HxWxD): 25 7/8" x 27" x 13 3/4" Tools & Equipment Co. 5 Manila Ave Hamden, CT 06514-0322 1-800-397-7553 or 203-248-7553 Portable Heater Parts 342 N. County Rd. 400 East Valparaiso, IN 46383-9704 219-462-7441 or 1-888-619-7060 www.portableheaterparts.com sales@portableheaterparts.
Service Hints When Gas Pressure Is Too Low • pilot will not stay lit • burners will have delayed ignition • heater will not produce specified heat • for propane/LP units, 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. Technical Service You may have further questions about installation, operation or troubleshooting. If so, contact DESA Heating Products’ Technical Service Department at 1-866-672-6040.
Illustrated Parts Breakdown Models CF26PTA and CF26NTA 1 18 16 10 20 9 11 8 5 7 12 4 6 19 13 19 14 19 3 2 17 15 19 19 28 www.desatech.
Parts List KEY NO. PART NO. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 113342-01 104033-03 ** 102844-02 099211-01 098867-10 098867-14 102981-01 102983-06 111331-08 099056-29 099056-20 111124-01 102980-01 101329-22 101329-21 102979-02 098544-01 102445-01 099387-09 098271-10 104286-01 104285-01 M11084-38 098249-01 DESCRIPTION Log Set Baffle, Rear Base Assembly Lower Bracket Screw, 10-16 x 2.
ILLUSTRATED PARTS BREAKDOWN Models CF26PTA and CF26NTA 1 3 5 4 9 16 16 18 21 6 7 3 15 2 5 18 18 21 19 13 18 17 14 20-1 12 16 11-1 20-2 10 20-3 8 11-2 30 www.desatech.
PARTS LIST Models CF26PTA and CF26NTA This list contains replaceable parts used in your fireplace. When ordering parts, follow the instructions listed under Replacement Parts on page 26 of this manual. KEY NO. PART 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.
