Comfort Glow CGD3924NT, CGD3930NT, CGD3018NT, CGB3924NT, CGB3930NT, CCL3018NT, CCL3924NT, CCL3930NT Owner's Operation And Installation Manual
Biltmore split oak, mountain oak, premium aged split oak, and smoky mountain oak unvented (vent-free) natural gas log heaters
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Also See for CGD3924NT, CGD3930NT, CGD3018NT, CGB3924NT, CGB3930NT, CCL3018NT, CCL3924NT, CCL3930NT:
- Owner's operation and installation manual (40 pages) ,
- Owner's operation and installation manual (40 pages) ,
- Owner's operation and installation manual (40 pages)
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BILTMORE SPLIT OAK, MOUNTAIN OAK,
PREMIUM AGED SPLIT OAK, AND
SMOKY MOUNTAIN OAK UNVENTED (VENT-FREE)
NATURAL GAS LOG HEATERS
VARIABLE MANUALLY-CONTROLLED MODELS ALSO DESIGNED CERTIFIED
OWNER'S OPERATION AND INSTALLATION MANUAL
18", 24", and 30" Variable
Manually-Controlled Models
CGD3018N
CY2718N
CGD3924N
CY3124N
CGD3930N
Patent
Pending
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.
— WHAT TO DO IF YOU SMELL GAS
• 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 sup-
plier, call the fire department.
— Installation and service must be per-
formed by 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. Refer to Air for Combustion and Ventilation section on page 4 of this manual.
This appliance may be installed in an aftermarket,* permanently located, manufac-
tured (mobile) home, where not prohibited by local codes.
This appliance is only for use with type of gas indicated on the rating plate. This
appliance is not convertible for use with other gases.
* Aftermarket: Completion of sale, not for purpose of resale, from the manufacturer
AS VENTED DECORATIVE APPLIANCE
(Smoky Mountain Oak Model Shown)
Save this manual for future reference.
18", 24" and 30"
Thermostatically-
Controlled Models
CGD3924NT
CGD3018NT
CGB3930NT
CCL3924NT
WARNING: Improper installation, adjust-
ment, alteration, service, or maintenance
can cause injury or property damage.
Refer to this manual for correct installa-
tion and operational procedures. For as-
sistance or additional information con-
sult a qualified installer, service agency,
or the gas supplier.
WARNING: This appliance is for installa-
tion only in a solid-fuel burning masonry
or UL127 factory-built fireplace, or in an
approved ventless firebox. It is design-
certified for these installations in accor-
dance with ANS Z21.11.2.
Exception: Do not install this appliance
in a factory-built fireplace that includes
instructions stating it has not been
tested or should not be used with
unvented gas logs.
CGD3930NT
CGB3924NT
CCL3018NT
CCL3930NTA
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Table of Contents
Related Manuals for Comfort Glow CGD3924NT, CGD3930NT, CGD3018NT, CGB3924NT, CGB3930NT, CCL3018NT, CCL3924NT, CCL3930NT
Summary of Contents for Comfort Glow CGD3924NT, CGD3930NT, CGD3018NT, CGB3924NT, CGB3930NT, CCL3018NT, CCL3924NT, CCL3930NT
- Page 1 BILTMORE SPLIT OAK, MOUNTAIN OAK, PREMIUM AGED SPLIT OAK, AND SMOKY MOUNTAIN OAK UNVENTED (VENT-FREE) NATURAL GAS LOG HEATERS VARIABLE MANUALLY-CONTROLLED MODELS ALSO DESIGNED CERTIFIED AS VENTED DECORATIVE APPLIANCE OWNER’S OPERATION AND INSTALLATION MANUAL 18", 24", and 30" Variable Manually-Controlled Models CGD3018N CY2718N CGD3924N...
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Page 2: Safety Information
VENT-FREE NATURAL GAS LOG HEATER SAFETY INFORMATION WARNINGS IMPORTANT: Read this owner’s manual carefully and completely before trying to assemble, oper- ate, or service this heater. Im- proper use of this heater can cause serious injury or death from burns, fire, explosion, electrical shock, and carbon monoxide poisoning. -
Page 3: Product Identification
SAFETY INFORMATION Continued 14. Turn heater off and let cool before ser- vicing. Only a qualified service person should service and repair heater. 15. Operating heater above elevations of 4,500 feet could cause pilot outage. PRODUCT IDENTIFICATION Crossover Log Front Log Piezo Ignitor Control Knob... -
Page 4: Air For Combustion And Ventilation
VENT-FREE NATURAL GAS LOG HEATER PRODUCT FEATURES Continued SAFETY PILOT This heater has a pilot with an Oxygen Depletion Sensing (ODS) safety shutoff system. The ODS/pilot is a required feature for vent-free room heaters. The ODS/pilot shuts off the heater if there is not enough fresh air. -
Page 5: Determining Fresh-Air Flow For Heater Location
Example: 2560 cu. ft. (volume of space) 50 cu. ft. = 51.2 or 51,200 (maximum Btu/Hr the space can support) 3. Add the Btu/Hr of all fuel burning appliances in the space. Vent-free heater ______________ Btu/Hr Gas water heater* ______________ Btu/Hr Gas furnace ______________ Btu/Hr... -
Page 6: Ventilation Air
VENT-FREE NATURAL GAS LOG HEATER 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 pro- vide two permanent openings: one within 12"... -
Page 7: Check Gas Type
INSTALLATION NOTICE: This heater is intended for use as supplemental heat. Use this heater along with your pri- mary heating system. Do not in- stall this heater as your primary heat source. If you have a central heating system, you may run system’s circulating blower while using heater. - Page 8 VENT-FREE NATURAL GAS LOG HEATER INSTALLATION Continued Minimum Clearances For Side Combustible Material, Side Wall, and Ceiling A. Clearances from the side of the fire- place cabinet to any combustible ma- terial and wall should follow diagram in Figure 5. Example: The face of a mantel, book- shelf, etc.
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Page 9: Mantel Clearances
INSTALLATION Continued MANTEL CLEARANCES In addition to meeting noncombustible mate- rial clearances, you must also meet required clearances between fireplace opening and mantel shelf. If you do not meet the clear- ances listed in Figure 7, you will need a hood. Determining Minimum Mantel Clearance If you meet minimum clearance between... -
Page 10: Installing Damper Clamp Accessory For Vented Operation
VENT-FREE NATURAL GAS LOG HEATER INSTALLATION Continued INSTALLING DAMPER CLAMP ACCESSORY FOR VENTED OPERATION Note: When used as a vented heater, appli- ance must be installed only in a solid-fuel burning fireplace with a working flue and constructed of noncombustible material. If your heater is a manually-controlled model, you may use this heater as a vented product. -
Page 11: Installing Heater Base Assembly
INSTALLATION Continued INSTALLING HEATER BASE ASSEMBLY CAUTION: Do not remove the metal data plates attached to the heater base assembly. The data plates contain important warranty information. WARNING: You must secure this heater to fireplace floor. If not, heater will move when you adjust controls. -
Page 12: Connecting To Gas Supply
VENT-FREE NATURAL GAS LOG HEATER INSTALLATION Continued CONNECTING TO GAS SUPPLY WARNING: This appliance requires a 1/2" NPT (National Pipe Thread) inlet connection to the pressure regulator. WARNING: A qualified ser- vice person must connect heater to gas supply. Follow all local codes. -
Page 13: Checking Gas Connections
INSTALLATION Continued CHECKING GAS CONNECTIONS WARNING: Test all gas pip- ing and connections for leaks after installing or servicing. Cor- rect 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. -
Page 14: Installing Logs
VENT-FREE NATURAL GAS LOG HEATER INSTALLATION Continued INSTALLING LOGS CAUTION: After installation and periodically thereafter, check to ensure that no flame comes in contact with any log. With the heater set to high, check to see if flames contact any log. If so, re- position logs according to the log installation instructions in this manual. - Page 15 INSTALLATION Continued Dual Burner Premium Aged Split Oak Models 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.
- Page 16 VENT-FREE NATURAL GAS LOG HEATER INSTALLATION Continued Dual Burner Biltmore Split Oak Models 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 en- sure that no flame comes in contact...
- Page 17 INSTALLATION Continued 6. Locate holes on the bottom of cross- over log (#6). Slide these holes onto the right pegs located in middle log (#2) and front log (#1). See Figure 33. Locate holes For CCL3930NTA only: on the bottom of crossover log (#7). Slide onto the pegs located in crossover log (#6) and middle log (#2).
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Page 18: Operating Heater
VENT-FREE NATURAL GAS LOG HEATER OPERATING HEATER Manually-Controlled Models FOR YOUR SAFETY READ BEFORE LIGHTING WARNING: If you do not fol- low these instructions exactly, a fire or explosion may result caus- ing property damage, personal injury or loss of life. A. - Page 19 OPERATING HEATER Continued VARIABLE CONTROL OPERATION The variable control valve can be set to any heat setting and flame height desired, by simply turning the control knob until that setting is attained. Even the lowest setting provides realistic, dancing yellow flames.
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Page 20: Inspecting Burners
VENT-FREE NATURAL GAS LOG HEATER OPERATING HEATER Continued Turn control knob counterclockwise to the PILOT position. C-clockwise Press in control knob for five (5) sec- onds (see Figure 40). Note: You may be running this heater for the first time after hook- ing up to gas supply. -
Page 21: Cleaning And Maintenance
INSPECTING BURNERS Continued BURNER PRIMARY AIR HOLES Air is drawn into the burner through the holes in the fitting at the entrance to the burner. These holes may become blocked with dust or lint. Periodically inspect these holes for any blockage and clean as neces- sary. -
Page 22: Troubleshooting
VENT-FREE NATURAL GAS LOG HEATER TROUBLESHOOTING Note: For additional help, visit DESA International’s technical service web site at www.desatech.com. Note: All troubleshooting items are listed in order of operation. OBSERVED PROBLEM When ignitor button is pressed, there is no spark at ODS/pilot... - Page 23 TROUBLESHOOTING Continued OBSERVED PROBLEM Burner does light after ODS/pilot is lit Delayed ignition burner Burner backfiring during combustion Slight smoke or odor during initial operation Moisture/condensation noticed on windows Heater produces a whistling noise when burner is lit White powder residue forming within burner box or on adjacent walls or furniture 107123 OWNER’S MANUAL...
- Page 24 VENT-FREE NATURAL GAS LOG HEATER TROUBLESHOOTING Continued WARNING • 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.
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Page 25: Optional Positioning Of Thermostat Sensing Bulb
OPTIONAL POSITIONING OF THERMOSTAT SENSING BULB For Masonry and Factory- built Metal Fireplace If your log set cycles to pilot, but the room temperature drops to a lower than ideal comfort level before the log set comes back on, you may want to reposition the thermo- stat sensing bulb. -
Page 26: Replacement Parts
Contact authorized dealers of this product. If they can’t supply original replacement part(s), contact your nearest Parts Central (see page 26) or call DESA International’s Technical Service Department at 1-800-DESA LOG (1-800-337-2564) for referral information. When calling DESA International, have ready •... -
Page 27: Technical Service
You may have further questions about in- stallation, operation, or troubleshooting. If so, contact DESA International’s Technical Service Department at 1-800-DESA LOG (1-800-337-2564). You can also visit DESA International’s technical services web site at www.desatech.com. ACCESSORIES Purchase these fireplace accessories from your local dealer. - Page 28 VENT-FREE NATURAL GAS LOG HEATER ILLUSTRATED PARTS BREAKDOWN Variable Manually-Controlled Smoky Mountain Oak Models CGD3018N CGD3924N CGD3930N For more information, visit www.desatech.com 107123...
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Page 29: Parts List
PARTS LIST Variable Manually-Controlled Smoky Mountain Oak Models CGD3018N CGD3924N CGD3930N CGD3018N PART NUMBER 103008-02 103009-02 103010-02 103011-02 102775-04CK 102844-02 102966-02 098867-14 102798-01 102779-03 099056-26 102843-01 102980-01 102568-07 098508-01 098354-01 102445-01 099387-08 098271-07 104285-01 M11084-38 098276-01 098249-01 100563-01 101055-02 100565-01 100639-01 101449-04 101137-02... -
Page 30: Illustrated Parts Breakdown
VENT-FREE NATURAL GAS LOG HEATER ILLUSTRATED PARTS BREAKDOWN Thermostatically-Controlled Premium Aged Split Oak Models CGB3924NT CGB3930NT For more information, visit www.desatech.com 107123... - Page 31 PARTS LIST Thermostatically-Controlled Premium Aged Split Oak Models CGB3924NT CGB3930NT 107123 OWNER’S MANUAL This list contains replaceable parts used in your heater. When ordering parts, follow the instructions listed under Replacement Parts on page 26 of this manual. CGB3924NT CGB3930NT PART NUMBER PART NUMBER 104897-01...
- Page 32 VENT-FREE NATURAL GAS LOG HEATER ILLUSTRATED PARTS BREAKDOWN Thermostatically-Controlled Smoky Mountain Oak Models CGD3018NT CGD3924NT CGD3930NT For more information, visit www.desatech.com 107123...
- Page 33 PARTS LIST Thermostatically-Controlled Smoky Mountain Oak Models CGD3018NT CGD3924NT CGD3930NT CGD3018NT PART NUMBER 103008-02 103009-02 103010-02 103011-02 102775-09CK 102844-02 102966-02 098867-14 102981-01 102983-03 099056-26 102843-01 102980-01 101329-21 102979-02 098544-01 102445-01 099387-09 098271-07 104285-01 M11084-38 098249-01 099211-01 100563-01 101054-01 100565-01 100639-01 101137-02 104310-02 GA6060...
- Page 34 VENT-FREE NATURAL GAS LOG HEATER ILLUSTRATED PARTS BREAKDOWN Thermostatically-Controlled Biltmore Split Oak Model CCL3018NT For more information, visit www.desatech.com 107123...
- Page 35 PARTS LIST Thermostatically-Controlled Biltmore Split Oak Model CCL3018NT 107123 This list contains replaceable parts used in your heater. When ordering parts, follow the instructions listed under Replacement Parts on page 26 of this manual. CCL3018NT PART NUMBER DESCRIPTION 105923-04 Front Log (#1) 105924-04 Middle Log (#2) 105925-04...
- Page 36 VENT-FREE NATURAL GAS LOG HEATER ILLUSTRATED PARTS BREAKDOWN Thermostatically-Controlled Biltmore Split Oak Model CCL3924NT For more information, visit www.desatech.com 107123...
- Page 37 PARTS LIST Thermostatically-Controlled Biltmore Split Oak Model CCL3924NT CCL3924NT PART NUMBER 105923-03 105924-03 105925-03 105926-03 105927-03 105928-04 102775-05CK 102844-01 102966-01 098867-14 102981-01 102983-01 099056-16 102843-01 102772-01 101329-20 102979-01 098544-01 102445-01 099387-09 098271-07 104285-01 M11084-38 098249-01 099211-01 100563-01 101054-01 100565-01 100639-01 101137-02 107073-02 GA6060...
- Page 38 VENT-FREE NATURAL GAS LOG HEATER ILLUSTRATED PARTS BREAKDOWN Thermostatically-Controlled Biltmore Split Oak Model CCL3930NTA For more information, visit www.desatech.com 107123...
- Page 39 PARTS LIST Thermostatically-Controlled Biltmore Split Oak Model CCL3930NTA CCL3930NTA PART NUMBER 105923-02 105924-02 105925-02 105926-02 105927-03 105928-02 105929-02 102844-01 102966-01 098867-14 102981-01 102983-01 099056-16 102843-01 102772-01 101329-20 102979-01 098544-01 102445-01 099387-09 098271-07 104285-01 M11084-38 098249-01 099211-01 102775-07CK 100563-01 101054-01 100565-01 100639-01 101137-02 107073-02...
- Page 40 VENT-FREE NATURAL GAS LOG HEATER ILLUSTRATED PARTS BREAKDOWN Variable Manually-Controlled Mountain Oak Models CY2718N CY3124N For more information, visit www.desatech.com 107123...
- Page 41 PARTS LIST Variable Manually-Controlled Mountain Oak Models CY2718N CY3124N 107123 This list contains replaceable parts used in your heater. When ordering parts, follow the instructions listed under Replacement Parts on page 26 of this manual. CY2718N CY3124N PART NUMBER PART NUMBER 103729-04 103729-03 103730-04...
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Page 42: Warranty Information
COMFORT GLOW VENT-FREE NATURAL GAS LOG HEATERS DESA International warrants this product to be free from defects in materials and components for two (2) years from the date of first purchase, provided that the product has been properly installed, operated and maintained in accordance with all applicable instructions.