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ROYAL ENGLISH OAK, BILTMORE SPLIT OAK,
AND WINCHESTER OAK UNVENTED
(VENT-FREE) NATURAL GAS LOG HEATER
VARIABLE MANUALLY-CONTROLLED MODELS ALSO DESIGN-CERTIFIED
OWNER'S OPERATION AND INSTALLATION MANUAL
18" and 24" Variable
Manually-Controlled Models
CGS2718N
CGS3124N
CLD3018N
WARNING: If the information in this manual
is not followed exactly, a fire or explosion
may result causing property damage, per-
sonal 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 supplier,
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* manufactured (mobile) home, where not prohibited
by state or local codes.
* Aftermarket: Completion of sale, not for purpose of resale, from the manufacturer
AS VENTED DECORATIVE APPLIANCES
(Winchester Oak Model Shown)
Save this manual for future reference.
24" and 30" Thermostatically-
Controlled Models
CLD3924NT
CCL3930NT(A)
®
WARNING: Improper installation, ad-
justment, alteration, service, or main-
tenance can cause injury or property
damage. Refer to this manual for cor-
rect installation and operational proce-
dures. For assistance or additional in-
formation consult a qualified installer,
service agency, or the gas supplier.
WARNING: This appliance is for in-
stallation only in a solid-fuel burning
masonry or UL127 factory-built fire-
place, or in an approved ventless
firebox. It is design-certified for these
installations in accordance with ANS
Z21.11.2.
Exception: Do not install this appli-
ance in a factory-built fireplace that
includes instructions stating it has
not been tested or should not be
used with unvented gas logs.
Patent
Pending
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Table of Contents
Related Manuals for Desa Comfort Glow CCL3930NTA
Summary of Contents for Desa Comfort Glow CCL3930NTA
- Page 1 ROYAL ENGLISH OAK, BILTMORE SPLIT OAK, AND WINCHESTER OAK UNVENTED (VENT-FREE) NATURAL GAS LOG HEATER VARIABLE MANUALLY-CONTROLLED MODELS ALSO DESIGN-CERTIFIED AS VENTED DECORATIVE APPLIANCES OWNER’S OPERATION AND INSTALLATION MANUAL 18" and 24" Variable Manually-Controlled Models CGS2718N CGS3124N CLD3018N WARNING: If the information in this manual is not followed exactly, a fire or explosion may result causing property damage, per- sonal injury, or loss of life.
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Page 2: Safety Information
UNVENTED 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
PRODUCT IDENTIFICATION Crossover Log Front Log Piezo Ignitor Control Knob Figure 1 - Yellow Flame Vent-Free Gas Log Heater Shown (Logs May Vary by Model) LOCAL CODES 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 ANS Z223.1, also known as NFPA 54*. -
Page 4: Air For Combustion And Ventilation
UNVENTED NATURAL GAS LOG HEATER 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 ven- tilation air. Read the following in- structions to insure proper fresh air for this and other fuel-burning appliances in your home. -
Page 5: Determining Fresh-Air Flow For Heater Location
AIR FOR COMBUSTION AND VENTILATION Continued DETERMINING FRESH-AIR FLOW FOR HEATER 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 heater plus any adjoining rooms with doorless passageways or ventilation grills between the rooms. - Page 6 UNVENTED NATURAL GAS LOG HEATER AIR FOR COMBUSTION AND VENTILATION Continued VENTILATION AIR Ventilation Air From Inside Building This fresh air would come from an adjoin- ing unconfined space. When ventilating to an adjoining unconfined space, you must provide two permanent openings: one within 12"...
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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 UNVENTED NATURAL GAS LOG HEATER INSTALLATION Continued NOTICE: You may use non-ther- mostat heater as a vented prod- uct. If so, you must always run heater with chimney flue damper open. If running heater with damper open, noncombustible material above fireplace opening is not needed.
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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 below, you will need a hood. Determining Minimum Mantel Clearance If you meet minimum clearance between mantel shelf and top of fireplace opening, a... -
Page 10: Installing Damper Clamp Accessory For Vented Operation
UNVENTED 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: Connecting To Gas Supply
INSTALLATION Continued 6. Drill holes at marked locations using 3/16" drill bit. 7. Attach base assembly to fireplace floor using two masonry screws (in hardware package) (see Figure 12). 8. Connect to gas supply. See Connect- ing To Gas Supply. Fitting Heater Gas Regulator... -
Page 12: Checking Gas Connections
UNVENTED NATURAL GAS LOG HEATER 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 13 INSTALLATION Continued INSTALLING LOGS ON MODELS CGS2718N AND CGS3124N 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.
- Page 14 UNVENTED NATURAL GAS LOG HEATER INSTALLATION Continued INSTALLING LOGS ON MODELS CLD3018N AND CLD3924NT 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.
- Page 15 INSTALLATION Continued INSTALLING LOGS ON MODEL CCL3930NT(A) 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 with any log.
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Page 16: Operating Heater
UNVENTED 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 17: To Turn Off Gas To Appliance
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. -
Page 18: Inspecting Burners
UNVENTED 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 32). Note: You may be running this heater for the first time after hook- ing up to gas supply. -
Page 19: Cleaning And Maintenance
INSPECTING BURNERS Continued MAIN BURNER Periodically inspect all burner flame holes with the heater running. All slotted burner flame holes should be open with yellow flame present. All round burner flame holes should be open with a small blue flame present. -
Page 20: Troubleshooting
UNVENTED 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 21 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 104385 POSSIBLE CAUSE...
- Page 22 UNVENTED NATURAL GAS LOG HEATER 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. •...
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Page 23: Optional Positioning Of Thermostat Sensing Bulb
OPTIONAL POSI- TIONING OF THER- MOSTAT 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 thermostat sensing bulb. -
Page 24: Specifications
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 Service web site at www.desatech.com. SERVICE HINTS When Gas Pressure Is Too Low •... -
Page 25: Parts Central
Purchase these fireplace accessories from your local dealer. If they can not supply these accessories, either contact your near- est Parts Central or call DESA International’s Sales Department at 1-800-458-2472 for information. You can also write to the ad- dress listed on the back page of this manual. -
Page 26: Illustrated Parts Breakdown
UNVENTED NATURAL GAS LOG HEATER ILLUSTRATED PARTS BREAKDOWN Variable Manually-Controlled Winchester Oak Models CGS2718N CGS3124N CGS2718N, CGS3124N, CLD3018N, CLD3924NT, and CCL3930NT(A) 20-2 20-1 104385... -
Page 27: Parts List
PARTS LIST Variable Manually-Controlled Winchester Oak Models CGS2718N CGS3124N CGS2718N PART NUMBER 103729-02 103730-02 103731-02 102775-02CK 102844-01 102966-01 098867-11 102780-01 102798-01 099056-20 102843-01 102963-01 102568-07 098508-01 098354-01 102445-01 098249-01 099387-08 098271-07 103042-01 20-1 098594-01 20-2 098593-01 M11084-38 098276-01 099553-01 100563-01 101055-02 100565-01 100639-01... - Page 28 UNVENTED NATURAL GAS LOG HEATER ILLUSTRATED PARTS BREAKDOWN Variable Manually-Controlled Royal English Oak Model CLD3018N CGS2718N, CGS3124N, CLD3018N, CLD3924NT, and CCL3930NT(A) 104385...
- Page 29 PARTS LIST Variable Manually-Controlled Royal English Oak Model CLD3018N 104385 This list contains replaceable parts used in your heater. When ordering parts, follow the instructions listed under Replacement Parts on page 24 of this manual. CLD3018N PART NUMBER DESCRIPTION 104933-01 Middle Log (#1) 104934-01 Back Log (#2)
- Page 30 UNVENTED NATURAL GAS LOG HEATER ILLUSTRATED PARTS BREAKDOWN Thermostatically-Controlled Royal English Oak Model CLD3924NT CGS2718N, CGS3124N, CLD3018N, CLD3924NT, and CCL3930NT(A) 104385...
- Page 31 PARTS LIST Thermostatically-Controlled Royal English Oak Model CLD3924NT 104385 This list contains replaceable parts used in your heater. When ordering parts, follow the instructions listed under Replacement Parts on page 24 of this manual. CLD3924NT PART NUMBER DESCRIPTION 104937-01 Middle Log (#1) 104938-01 Rear Log (#2) 104936-01...
- Page 32 UNVENTED NATURAL GAS LOG HEATER ILLUSTRATED PARTS BREAKDOWN Thermostatically-Controlled Biltmore Split Oak Model CCL3930NT CCL3930NTA CGS2718N, CGS3124N, CLD3018N, CLD3924NT, and CCL3930NT(A) 104385...
- Page 33 PARTS LIST Thermostatically-Controlled Biltmore Split Oak Model CCL3930NT CCL3930NTA CCL3930NT PART NUMBER 105923-01 105924-01 105925-01 105926-01 105927-01 105928-01 105929-01 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...
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Page 34: 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.