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OFF
ON
AUT O
UNVENTED (VENT-FREE) FIREPLACE
OWNER’S OPERATION AND INSTALLATION MANUAL
For more information, visit www.desatech.com For more information, visit www.desatech.com
CF26PT
CF26NT
19,000 to 26,000 Btu/Hr
Patent Pending
with Thermostat
Fireplace Shown With Optional
Bay Front Mantel
BAY FRONT PROPANE/LP AND NATURAL GAS
FIREPLACE MODELS
WARNING: Improper installation, adjust-
WARNING: If the information in this manual is not
ment, alteration, service, or maintenance
followed exactly, a fi
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TABLE OF CONTENTS SAFETY INFORMATION 2 TABLE OF CONTENTS SAFETY INFORMATION ............................................................ 2 SPECIFICATIONS .................................................................... 18 PRODUCT IDENTIFICATION ..................................................... 3 SERVICE HINTS....................................................................... 18 TECHNICAL SERVICE ............................................................. 18 LOCAL CODES ............
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AUTO ON OFF SAFETY INFORMATION 3 PRODUCT IDENTIFICATION 3 SAFETY INFORMATION Continued 12. Do not use this fireplace to cook food or burn paper or other You must operate this fireplace with a fireplace screen objects. in place. Make sure fireplace screen is in place before 13. Do not use fireplace if any part has been under water. Immedi- running fireplace. ately call a qualified service technician to inspect the room fireplace and to replace any part of the control system and any Keep the appli
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LOCAL CODES 4 UNPACKING PRODUCT FEATURES AIR FOR COMBUSTION AND VENTILATION Providing Adequate Ventilation LOCAL CODES AIR FOR COMBUSTION AND Install and use fireplace with care. Follow all local codes. In the absence VENTILATION of local codes, use the latest edition of The National Fuel Gas Code ANSI Z223.1/NFPA 54*. WARNING: This heater shall not be installed in a *Available from: confined space or unusually tight construction unless provisions are provided for adequate combustion and Ameri
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AIR FOR COMBUSTION AND VENTILATION 5 Providing Adequate Ventilation (Cont.) 5 Determining Fresh-Air Flow for Heater Location AIR FOR COMBUSTION AND VENTILATION Continued c. caulking or sealants are applied to areas such as 3. Add the Btu/Hr of all fuel burning appliances in the space. joints around window and door frames, between sole Vent-free heater _____________ Btu/Hr plates and floors, between wall-ceiling joints, between Gas water heater* _____________ Btu/Hr wall panels, at penetrations f
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AIR FOR COMBUSTION AND VENTILATION 6 Ventilation Air INSTALLATION Check Gas Type AIR FOR COMBUSTION AND VENTILATION Continued VENTILATION AIR Ventilated Outlet Ventilation Air From Inside Building Attic Air This fresh air would come from an adjoining unconfined space. Outlet When ventilating to an adjoining unconfined space, you must Air provide two permanent openings: one within 12" of the ceiling and To Attic one within 12" of the floor on the wall connecting the two spaces (see options 1 and
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INSTALLATION 7 Locating Fireplace 7 INSTALLATION Continued Note: When installing fireplace directly on carpeting, tile or other LOCATING FIREPLACE combustible material, other than wood flooring, the fireplace shall be installed on a metal or wood panel extending the full width and WARNING: Maintain the minimum clearances depth of the fireplace. shown in Figures 4 and 5. If you can, provide greater clearances from floor, ceiling, and joining wall. CEILING You can recess firebox into the wall. Yo
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AUTO ON OFF INSTALLATION 8 Built-In Fireplace Installation (Cont.) INSTALLATION Continued 8. Attach fireplace to wall studs using nails or wood screws BUILT-IN FIREPLACE INSTALLATION through holes in nailing flange. Built-in installation of this fireplace involves installing fireplace 9. Check all gas connections for leaks. See Checking Gas Con- into a framed-in enclosure. This makes the front of fireplace flush nections, pages 14 and 15. with wall. Follow the instructions below to install the f
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INSTALLATION 9 Built-In Fireplace Installation (Cont.) 9 Removing Brick Liner Retainer Assembling Trim Optional Mantel Installation INSTALLATION Continued IMPORTANT: Noncombustible materials such as brick, tile, etc. REMOVING BRICK LINER RETAINER may overlap the front facing, but should never cover any necessary 1. Using Phillips screw driver, remove 2 screws attaching brick openings like louvered slots. liner retainers to vertical sides. 2. Remove brick liner retainers and discard. Replace 2 s
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A U T O O N O FF INSTALLATION 10 Optional Mantel Installation (Cont.) Installing Blower Assembly - GA4350T INSTALLATION Continued 7. Carefully place fireplace on mantel base and center left to Shoulder Screws right. Check for gas leaks. See Checking Gas Connections, pages 14 and 15. 8. Refer to instructions provided with the mantel for permanent at- tachment to wall. 9. Slide mantel around fireplace. Be careful not to damage wall or mantel. 10. Adjust assembly to remove any gaps. From back side
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AUTO ON OFF INSTALLATION 11 Installing Blower Assembly - GA3450T (Cont.) 11 INSTALLATION Continued 4. Note the wire locations on back of AUTO/OFF/ON switch. 10. Install the switch plate on the blower control shield with 2 - #10 Carefully remove red wire from the AUTO terminal and blue screws provided (see Figure 17). Route power cord out of the wire from the ON terminal. Black wire can remain on the cabinet by inserting it through the bushing on the outer casing middle or OFF terminal (see Figur
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AUTO ON OFF INSTALLATION 12 Installing Blower Assembly - GA3450T (Cont.) Connecting to Gas Supply INSTALLATION Continued 5. Test to make sure the blower is working properly. CONNECTING TO GAS SUPPLY 6. Reinstall hood assembly (see pages 9 and 10) and close lower louver door. WARNING: This appliance requires a 1/2" NPT 7. Place log set back on the unit. (National Pipe Thread) inlet connection to the pres- sure regulator. Blower Bracket Assembly WARNING: A qualified service person must con- nect
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AUTO N O OFF INSTALLATION 13 Connecting to Gas Supply (Cont.) 13 Connecting Fireplace to Gas Supply INSTALLATION Continued CSA Design-Certified Gas Control CAUTION: Use only new, black iron or steel pipe. Equipment Shutoff Valve With Internally-tinned copper tubing may be used in cer- 1/8" NPT Tap* tain areas. Check your local codes. Use pipe of 1/2" Natural Gas or greater diameter to allow proper gas volume to From Gas Meter (5" W.C.** to 10.5 fireplace. If pipe is too small, undue loss of vol
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INSTALLATION 14 Connecting Fireplace to Gas Supply (Cont.) Checking Gas Connections INSTALLATION Continued 2. Cap off open end of gas pipe where equipment shutoff valve NOTICE: Most building codes do not permit con- was connected. cealed gas connections. A flexible gas line is pro- 3. Pressurize supply piping system by either opening propane/LP sup- vided to allow accessibility from the fireplace (see ply tank valve for propane/LP gas or opening main gas valve lo- Figure 23). The flexible gas su
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INSTALLATION 15 Checking Gas Connections (Cont.) 15 Installing Logs INSTALLATION Continued Equipment Shutoff Valve It is very important to install the logs exactly as instructed. Do not modify logs. Only use logs supplied with heater. Place one-piece log set on grate to fit as illustrated in Figure 27. Propane/LP Make sure back section of log set is seated into “U”-shaped cutout Supply Tank in center of chassis (see Figure 27). IMPORTANT: Make sure log does not cover any burner ports (see Figur
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OPERATING FIREPLACE 16 For Your Safety Read Before Lighting Lighting Instructions To Turn Off Gas To Appliance OPERATING FIREPLACE Note: You may be running this heater for the first time FOR YOUR SAFETY after hooking up to gas supply. If so, the control knob may READ BEFORE LIGHTING need to be pressed in for 30 seconds or more. This will al- low air to bleed from the gas system. WARNING: If you do not follow these instructions • If control knob does not pop out when released, contact a exactly,
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OPERATING FIREPLACE 17 Thermostat Control Operation 17 Manual Lighting Procedure INSPECTING BURNERS CLEANING AND MAINTENANCE Cleaning Burner Injector Holder and Pilot Air Inlet Hole OPERATING FIREPLACE Continued BURNER PRIMARY AIR HOLES THERMOSTAT CONTROL Air is drawn into the burner through the holes in the fitting at the OPERATION burner entrance. These holes may become blocked with dust or lint. The thermostat control knob can be set to any comfort level Periodically inspect these holes for a
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CLEANING AND MAINTENANCE 18 Cleaning Burner Injector Holder and Pilot Air Inlet Hole (Cont.) Cabinet SPECIFICATIONS SERVICE HINTS TECHNICAL SERVICE CLEANING AND MAINTENANCE continued 1. Shut off the unit, including the pilot. Allow the unit to cool for CABINET at least thirty minutes. Air Passageways 2. Inspect burners, pilot, and primary air inlet holes on injector • Use a vacuum cleaner or pressurized air to clean. holder for dust and dirt (see Figure 33). Exterior 3. Blow air through the port
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TROUBLESHOOTING 19 19 TROUBLESHOOTING Note: For additional help, visit DESA CAUTION: Never use a wire, WARNING: Turn off heater Heating Products’ technical service web needle, or similar object to clean and let cool before servicing. Only site at www.desatech.com. ODS/pilot. This can damage ODS/ a qualified service person should Note: All troubleshooting items are listed in pilot unit. service and repair heater. order of operation. OBSERVED PROBLEM POSSIBLE CAUSE REMEDY When ignitor button is
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TROUBLESHOOTING 20 TROUBLESHOOTING Continued OBSERVED PROBLEM POSSIBLE CAUSE REMEDY Burner does not light after ODS/pilot is lit 1. Burner orifice clogged 1. Clean burner (see Cleaning and Main- tenance, pages 17 and 18) or replace burner orifice 2. Inlet gas pressure is too low 2. Contact local natural or propane/LP gas company Delayed ignition burner 1. Manifold pressure is too low 1. Contact local natural or propane/LP gas company 2. Burner orifice clogged 2. Clean burner (see Cleaning and Ma
