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18", 24", and 30" Variable
Manually-Controlled Models
CGD3018N
CGD3930N
CCL3924N
CCL3018N
Patent Pending
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,* permanently located, manufactured
(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
CGD3924N
CRL2718N
CRL3124N
(Smoky Mountain Oak Model Shown)
BILTMORE SPLIT OAK, SEASONAL OAK, AND
SMOKY MOUNTAIN OAK LOGS
Variable Manually-Controlled Models Also Designed Certified
As Vented Decorative Appliance
Save this manual for future reference.
Save this manual for future reference.
UNVENTED (VENT-FREE)
NATURAL GAS LOG HEATERS
OWNER'S OPERATION AND
INSTALLATION MANUAL
CGD3924NT
CGD3018NT
CCL3924NT
WARNING: Improper installation, adjustment,
alteration, service, or maintenance can cause
injury or property damage. Refer to this
manual for correct installation and opera-
tional procedures. For assistance or addi-
tional information consult a qualified installer,
service agency, or the gas supplier.
WARNING: This appliance is for installation
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 accordance with ANSI
Z21.11.2.
Exception: Do not install this appliance in a
factory-built fireplace that includes instruc-
tions stating it has not been tested or should
not be used with unvented gas logs.
18", 24" and 30"
Thermostatically-Controlled
Models
CGD3930NT
CCL3018NT
CCL3930NTA
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Table of Contents
Related Manuals for Comfort Glow CCL3018N
Summary of Contents for Comfort Glow CCL3018N
- Page 1 CGD3018N CGD3924N CGD3930N CRL2718N CCL3924N CRL3124N CCL3018N BILTMORE SPLIT OAK, SEASONAL OAK, AND Variable Manually-Controlled Models Also Designed Certified Patent Pending 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: Table Of Contents
TABLE OF CONTENTS SAFETY INFORMATION TABLE OF CONTENTS SAFETY INFORMATION ... 2 PRODUCT IDENTIFICATION ... 3 UNPACKING ... 4 LOCAL CODES ... 4 PRODUCT FEATURES ... 4 AIR FOR COMBUSTION AND VENTILATION ... 4 INSTALLATION ... 7 OPERATING HEATER ... 17 INSPECTING BURNERS ... -
Page 3: Product Identification
SAFETY INFORMATION Continued 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. This heater shall not be installed in a bedroom or bathroom, unless installed as a vented appliance (Variable Manually-Con- trolled Models Only). -
Page 4: Unpacking
LOCAL CODES PRODUCT FEATURES Operation Safety Pilot Piezo Ignition System AIR FOR COMBUSTION AND VENTILATION Providing Adequate Ventilation UNPACKING CAUTION: Do not remove the data plates from the grate assembly. The data plates contain important product information. Remove logs and heater base assembly from carton. Note: Do not pick up heater base assembly by burners. -
Page 5: Air For Combustion And Ventilation
AIR FOR COMBUSTION AND VENTILATION Continued c. caulking or sealants are applied to areas such as joints around window and door frames, between sole plates and floors, between wall-ceiling joints, between wall panels, at penetrations for plumbing, electrical, and gas lines, and at other openings. If your home meets all of the three criteria above, you must provide additional fresh air. -
Page 6: Ventilation Air
AIR FOR COMBUSTION AND VENTILATION Ventilation Air 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 provide two permanent openings: one within 12" of the ceiling and one within 12"... -
Page 7: Installation
INSTALLATION NOTICE: This heater is intended for use as supple- mental 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. - Page 8 INSTALLATION Installation And Clearances (Vent-Free Operation Only) INSTALLATION Continued Minimum Clearances For Side Combustible Material, Side Wall, and Ceiling A. Clearances from the side of the fireplace cabinet to any com- bustible material and wall should follow diagram in Figure 5. Example: The face of a mantel, bookshelf, etc.
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Page 9: Mantel Clearances
INSTALLATION Continued MANTEL CLEARANCES In addition to meeting noncombustible material clearances, you must also meet required clearances between fireplace opening and mantel shelf. If you do not meet the clearances listed in Figure 7, you will need a hood. Determining Minimum Mantel Clearance If you meet minimum clearance between mantel shelf and top of fireplace opening, a hood is not required (see Figure 7). -
Page 10: Installing Damper Clamp Accessory For Vented Operation
INSTALLATION Installing Damper Clamp Accessory For Vented Operation Installing Heater Base Assembly INSTALLATION Continued INSTALLING DAMPER CLAMP ACCESSORY FOR VENTED OPERATION Note: When used as a vented heater, appliance must be installed only in a solid-fuel burning fireplace with a working flue and constructed of noncombustible material. -
Page 11: Connecting To Gas Supply
INSTALLATION Continued Apply pipe joint sealant lightly to male threads of the fitting to be threaded into gas regulator. Connect approved flexible gas hose to gas regulator of heater (see Figure 12). IMPORTANT: Hold gas regulator with wrench when connect- ing flexible gas hose. -
Page 12: Checking Gas Connections
INSTALLATION Connecting To Gas Supply (Cont.) Checking Gas Connections 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 15). IMPORTANT: Install equipment shutoff valve in an accessible location. -
Page 13: Installing Logs
INSTALLATION Continued Pressure Testing Heater Gas Connections Open equipment shutoff valve (see Figure 16, page 12). Open main gas valve located on or near gas meter. Make sure control knob of heater is in the OFF position. Check all joints from equipment shutoff valve to control valve (see Figure 17). - Page 14 INSTALLATION Installing Logs (Cont.) INSTALLATION Continued Dual Burner Premium Aged Split Oak Models WARNING: Failure to position the parts in accor- dance 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.
- Page 15 Locate holes on the bottom of crossover log (#4). Slide front hole onto the left pin (CCL3924NT or CCL3930NTA) or middle pin (CCL3018NT or CCL3018N) on the middle log (#2) and the pin on the back log (#3). See Figure 30 for placement.
- Page 16 INSTALLATION Installing Logs (Cont.) INSTALLATION Continued Single Burner Seasonal Oak Models WARNING: Failure to position the parts in accor- dance with these diagrams or failure to use only parts specifically approved with this heater may result in property damage or personal injury. The Seasonal Oak Log Set is a reversible log set.
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Page 17: Operating Heater
OPERATING HEATER Manually-Controlled Models FOR YOUR SAFETY READ BEFORE LIGHTING WARNING: If you do not follow these instructions exactly, a fire or explosion may result causing prop- erty 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. -
Page 18: Manual Lighting Procedure
OPERATING HEATER (MANUALLY CONTROLLED MODELS) Lighting Instructions (Cont.) Variable Control Operation To Turn Off Gas To Appliance Manual Lighting Procedure OPERATING HEATER (THERMOSTATICALLY-CONTROLLED MODELS) For Your Safety Read Before Lighting OPERATING HEATER Continued With control knob pressed in, press and release ignitor but- ton. -
Page 19: Lighting Instructions
OPERATING HEATER Continued LIGHTING INSTRUCTIONS WARNING: • If fireplace has glass doors, never operate this heater with glass doors closed. If you operate heater with doors closed, heat buildup inside fire- place will cause glass to burst. Also if fireplace opening has vents at the bottom, you must open the vents before operating heater. -
Page 20: Inspecting Burners
OPERATING HEATER (THERMOSTATICALLY-CONTROLLED MODELS) Thermostat Control Operation Manual Lighting Procedure INSPECTING BURNERS CLEANING AND MAINTENANCE OPERATING HEATER Continued 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. -
Page 21: Specifications
CLEANING AND MAINTENANCE Continued 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. Blow air into the primary air holes on the injector holder. In case any large clumps of dust have now been pushed into the burner repeat steps 3 and 4. -
Page 22: Troubleshooting
TROUBLESHOOTING 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 When ignitor button is pressed, there is... - 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 For more information, visit www.desatech.com For more information, visit www.desatech.com...
- Page 24 TROUBLESHOOTING 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 thermostat sensing bulb. The thermostat sensing bulb is located near the gas valve assembly on the mounting bracket. -
Page 26: Illustrated Parts Breakdown And Parts List
ILLUSTRATED PARTS BREAKDOWN CGD3018N, CGD3924N, CGD3930N, CCL3018N, CCL3924N ILLUSTRATED PARTS Smoky Mountain Oak Logs BREAKDOWN Variable Manually-Controlled CGD3018N, CGD3924N CGD3930N, CCL3018N CCL3924N Biltmore Split Oak Logs For more information, visit www.desatech.com For more information, visit www.desatech.com 107123-01E... -
Page 27: Parts List
102844-02 100563-01 101055-02 100565-01 100639-01 101449-04 101137-02 GA6060 For more information, visit www.desatech.com For more information, visit www.desatech.com 107123-01E CGD3018N, CGD3924N, CGD3930N, CCL3018N, CCL3924N PART NUMBER CCL3924N CGD3924N CGD3930N DESCRIPTION 103008-01 103008-03 Back Log (#1) ____ 105925-03 Back Log (#1) - Page 28 ILLUSTRATED PARTS BREAKDOWN CGD3018NT, CGD3924NT, CGD3930NT ILLUSTRATED PARTS BREAKDOWN Thermostatically-Controlled Smoky Mountain Oak Models CGD3018NT CGD3924NT CGD3930NT For more information, visit www.desatech.com For more information, visit www.desatech.com 107123-01E...
- Page 29 PARTS LIST This list contains replaceable parts used in your heater. When ordering parts, follow the instructions listed under Replacement Parts on page 36 of this manual. Thermostatically-Controlled Smoky Mountain Oak Models CGD3018NT PART NUMBER 103008-02 103009-02 103010-02 103011-02 102775-09CK 102844-02 102966-02 098867-14...
- Page 30 ILLUSTRATED PARTS BREAKDOWN CGD3018NT, CGD3924NT, CGD3930NT ILLUSTRATED PARTS BREAKDOWN Thermostatically-Controlled Biltmore Split Oak Model CCL3018NT For more information, visit www.desatech.com For more information, visit www.desatech.com 107123-01E...
- Page 31 PARTS LIST This list contains replaceable parts used in your heater. When ordering parts, follow the instructions listed under Replacement Parts on page 36 of this manual. Thermostatically-Controlled Biltmore Split Oak Model CCL3018NT PART NUMBER 105923-04 105924-04 105925-04 105926-04 105927-04 105928-04 102775-09CK 102844-02...
- Page 32 ILLUSTRATED PARTS BREAKDOWN CCL3924NT, CCL3930NTA ILLUSTRATED PARTS BREAKDOWN Thermostatically-Controlled Biltmore Split Oak Model CCL3924NT, CCL3930NTA For more information, visit www.desatech.com For more information, visit www.desatech.com 107123-01E...
- Page 33 PARTS LIST This list contains replaceable parts used in your heater. When ordering parts, follow the instructions listed under Replacement Parts on page 36 of this manual. Thermostatically-Controlled Biltmore Split Oak Model CCL3924NT 105923-03 105924-03 105925-03 105926-03 105927-03 105928-04 ____ 102844-01 102966-01 098867-14...
- Page 34 ILLUSTRATED PARTS BREAKDOWN CRL2718N, CRL3124N ILLUSTRATED PARTS BREAKDOWN Variable Manually-Controlled Seasonal Oak Models CRL2718N, CRL3124N For more information, visit www.desatech.com For more information, visit www.desatech.com 107123-01E...
- Page 35 PARTS LIST This list contains replaceable parts used in your heater. When ordering parts, follow the instructions listed under Replacement Parts on page 36 of this manual. Variable Manually-Controlled Mountain Oak Models CRL2718N 110243-01 110243-02 110242-03 102775-02CK 102844-01 102966-01 098867-14 102780-01 102798-01 099056-20...
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Page 36: Replacement Parts
WARRANTY Contact authorized dealers of this product. If they can’t supply original replacement part(s), contact your nearest Parts Central (see page 39) or call DESA International at 1-866-672-6040 for referral information. When calling DESA International, have ready • model number of your heater •... -
Page 37: Owner's Registration
Address: City: Home Phone: E-Mail: Please answer the following questions to register your product with DESA International: Where will the product be used? Living/Family Room Office/Warehouse If you bought this product yourself, did you plan to purchase this type of product before going into the store? - Page 38 For more information, visit www.desatech.com For more information, visit www.desatech.com TAPE 2701 Industrial Drive P.O. Box 90004 Bowling Green, KY 42102-9004 TAPE Postage Required 107123-01E...
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Page 39: Parts Central
PARTS CENTRAL These Parts Centrals are privately owned businesses. They have agreed to support our customer’s needs by providing original replacement parts and accessories. Baltimore Electric 1348 Dixwell Avenue Hamden, CT 06514-0322 1-800-397-7553 203-248-7553 Parts Department Portable Heater Parts 342 N. County Rd. 400 East Valparaiso, IN 46383-9704 All States 219-462-7441... -
Page 40: 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. To make a claim under this warranty the Bill of Sale or cancelled check must be presented.