Desa CSG3930PR Owner's Operation And Installation Manual
Unvented (vent-free) gas log heater
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- Owner's operation and installation manual (44 pages)
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For more information, visit www.desatech.com
For more information, visit www.desatech.com
Remote-Ready Models Also Design-Certified As Vented Decorative Appliances
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 performed
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 5 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 the 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
UNVENTED (VENT-FREE)
GAS LOG HEATER
OWNER'S OPERATION AND INSTALLATION MANUAL
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Save this manual for future reference.
24" and 30"Remote-Ready Models:
VRL24NR, VRL24PR, VRL30NR,
VRL30PR, CSG3924NR, CSG3924PR
CTB3924NR, CTB3924PR
CSG3930NR, CSG3930PR
24" and 30" Thermostat Models:
VRL24NT, VRL24PT, VRL30NT,
VRL30PT, CSG3924NT, CSG3924PT,
CTB3924NT, CTB3924PT
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 installa-
tion only in a solid-fuel burning masonry or
UL127 factory-built fireplace, or in an listed
ventless firebox enclosure. It is design-
certified for these installations in accor-
dance with ANSI 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. For unmarked fac-
tory-built fireplaces, contact fireplace manu-
facturer if unsure of this application.
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Table of Contents
Related Manuals for Desa CSG3930PR
Summary of Contents for Desa CSG3930PR
- Page 1 GAS LOG HEATER OWNER’S OPERATION AND INSTALLATION MANUAL 24" and 30"Remote-Ready Models: VRL24NR, VRL24PR, VRL30NR, VRL30PR, CSG3924NR, CSG3924PR CTB3924NR, CTB3924PR CSG3930NR, CSG3930PR 24" and 30" Thermostat Models: VRL24NT, VRL24PT, VRL30NT, VRL30PT, CSG3924NT, CSG3924PT, CTB3924NT, CTB3924PT WARNING: Improper installation, adjustment, alteration, service, or maintenance can cause injury or property damage.
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Page 2: Table Of Contents
TABLE OF CONTENTS SAFETY INFORMATION TABLE OF CONTENTS SAFETY INFORMATION ... 2 PRODUCT IDENTIFICATION ... 4 OPTIONAL REMOTE CONTROL ACCESSORIES ... 4 LOCAL CODES ... 4 UNPACKING ... 4 PRODUCT FEATURES ... 5 AIR FOR COMBUSTION AND VENTILATION ... 5 INSTALLATION ... - Page 3 SAFETY INFORMATION Continued You must operate this heater with a fireplace screen in place. Make sure fireplace screen is closed before running heater. Keep the appliance area clear and free from combus- tible materials, gasoline, and other flammable vapors and liquids. 1.
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Page 4: Product Identification
Remote Control Front and Rear (Optional) Burner Control Knob Remote-Ready Models: CSG3924NR, CSG3924PR, CTB3924NR, CTB3924PR, CSG3930NR, CSG3930PR, VRL24NR, VRL24PR, VRL30NR, VRL30PR Figure 1 - Product Identification For more information, visit www.desatech.com For more information, visit www.desatech.com OPTIONAL REMOTE CONTROL ACCESSORIES... -
Page 5: Product Features
PRODUCT FEATURES OPERATION This heater is clean burning. It requires no outside venting. There is no heat loss out a vent or up a chimney. Heat is generated by both realistic flames and glowing coals. This heater is designed for vent- free operation with flue damper closed. - Page 6 AIR FOR COMBUSTION AND VENTILATION 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.
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Page 7: 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 8: Installation
INSTALLATION Check Gas Type Installation and Clearances For Vent-Free Operation 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 9 INSTALLATION Continued Carefully follow the instructions below. This will ensure safe installation into a masonry, UL127-listed manufactured fireplace, or listed vent-free firebox. 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 4.
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Page 10: Mantel Clearances
INSTALLATION Mantel Clearances Floor 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 below, 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 6). -
Page 11: Installing Damper Clamp Accessory For Vented Operation
INSTALLATION Continued INSTALLING DAMPER CLAMP ACCESSORY FOR VENTED OPERATION (Remote-Ready Models Only) 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. If your heater is a manually-controlled, you may use this heater as a vented product. -
Page 12: Connecting To Gas Supply
INSTALLATION Installing Heater Base Assembly (Cont.) Connecting To Gas Supply INSTALLATION Continued 2. Locate two masonry screws in hardware package. 3. Place heater base in fireplace. 4. Place logs in their proper position on heater base (see Installing Logs, pages 15 and 16). 5. - Page 13 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 14 or 15, depending on your model). IMPORTANT: Install equipment shutoff valve in an accessible location.
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Page 14: Checking Gas Connections
INSTALLATION Checking Gas Connections INSTALLATION Continued 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. WARNING: Never use an open flame to check for a leak. -
Page 15: Installing Logs
Models CSG3924NT, CSG3924PT, CSG3924NR, CSG3924PR, CTB3924NT, CTB3924PT, CTB3924NR CTB3924PR, CSG3930NR, and CSG3930PR, 1. Place log #1 (ember bed) onto base. Position log over alignment screws to left of front burner and behind middle burner. Ember bed will sit on top of front and middle burners (see Figure 19). - Page 16 INSTALLATION Installing Logs (Cont.) INSTALLATION Continued Models VRL24NR, VRL24PR, VRL30NR, VRL30PR, VRL24NT, VRL24PT, VRL30NT and VRL30PT 1. Place log #1 (ember bed) onto base over log alignment screws to the left of front burner and behind middle burner. Log #1 will sit on top of front and middle burners (see Figure 23).
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Page 17: Operating Heater
INSTALLATION Continued ATTACHING GRATE TO BASE ASSEMBLY Locate the two slots in the front of the base assembly. Carefully slide the decorative grate into these slots (see Figure 27). Grate Figure 27 - Attaching Grate to Base Assembly (Logs and Base Will Vary According to Model) ADDING LAVA ROCK Place lava rock around base of heater if desired. -
Page 18: Operating Heater
OPERATING HEATER (THERMOSTAT-CONTROLLED MODELS) Lighting Instructions (Cont.) To Turn Off Gas To Appliance Thermostat Control Manual Lighting Procedure OPERATING HEATER Continued Note: Home owners generally prefer to operate their heater with the chimney damper closed. This will put all the heat into the room. - Page 19 OPERATING HEATER Continued REMOTE-READY 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.
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Page 20: Manual Lighting Procedure
OPERATING HEATER (REMOTE-READY MODELS) Lighting Instructions (Cont.) To Turn Off Gas To Appliance Manual Lighting Procedure Optional Remote Operation OPERATING HEATER Continued 11. To light the front/rear burners, push in and turn rear burner control knob counterclockwise CAUTION: Do not try to adjust heating levels by using the equipment shutoff valve. - Page 21 OPERATING HEATER Continued ON/OFF SERIES (MODELS GHRCB AND CGHRCB) Hold the control button on the hand-held remote until burner turns on. Hold the control button again until burner turns off (see Figure 35). press both buttons on hand-held remote control until TO LOCK light stops flashing.
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Page 22: Inspecting Burners
INSPECTING BURNERS Pilot Flame Pattern Burner Flame Patterns INSPECTING BURNERS Check pilot flame pattern and burner flame patterns often. PILOT FLAME PATTERN Figure 37 shows a correct pilot flame pattern. Figure 38 shows an incorrect pilot flame pattern. The incorrect pilot flame is not touching the thermocouple. -
Page 23: Cleaning And Maintenance
CLEANING AND MAINTENANCE WARNING: Turn off heater and let cool before cleaning. CAUTION: You must keep control areas, burners, and circulating air passageways of heater clean. In- spect these areas of heater before each use. Have heater inspected yearly by a qualified service person. Heater may need more frequent cleaning due to exces- sive lint from carpeting, pet hair, bedding material, etc. -
Page 24: Troubleshooting
TROUBLESHOOTING TROUBLESHOOTING Note: For additional help, visit DESA Heating Products’ 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 25 TROUBLESHOOTING Continued OBSERVED PROBLEM One or more burners do not light after ODS/ pilot is lit Delayed ignition of one or more burners Burner backfiring during combustion Yellow flame in front/middle burner during burner combustion (VRL24NT/PT, VRL24NR/PR, VRL30NT/PT, VRL30NR/ PR, CSG3924NT/PT, CSG3924NR/PR, CSG3930NR/PR) Yellow flame in front burner during burner combustion (CTB3924NT/PT,...
- Page 26 TROUBLESHOOTING 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.
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Page 27: Optional Positioning Of Thermostat Sensing Bulb
OPTIONAL POSITIONING OF THERMOSTAT SENSING BULB (THERMOSTAT-CONTROLLED MODELS ONLY) 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 28: Specifications
SPECIFICATIONS WIRING DIAGRAM (REMOTE-READY MODELS ONLY) SPECIFICATIONS 24" Thermostat-Controlled Btu (Variable) 10,000/40,000 Type Gas Propane/LP Ignition Piezo Manifold Pressure 7.4" W.C. Inlet Gas Pressure (in. of water) Maximum 14" Minimum* 11" Shipping Weight 30 lbs. Certified Standards Z21.11.2-2000 * For purpose of input adjustment 24"... -
Page 29: Illustrated Parts Breakdown And Parts List
110103-01 110105-01 110105-02 110105-03 110105-04 110104-01 For more information, visit www.desatech.com For more information, visit www.desatech.com 110021-01G Log Set for Models: CSG3924NT, CSG3924PT, CSG3924NR, CSG3924PR, CSG3930NR, CSG3930PR, CTB3924NT, CTB3924PT, CTB3924NR, and CTB3924PR CSG3924NT CSG3924PT CSG3924NR CSG3924PR VRL30NT CTB3924NT VRL30PT CTB3924PT... - Page 30 ILLUSTRATED PARTS BREAKDOWN Models VRL24NT, VRL24PT, VRL30NT, VRL30PT, CSG3924NT, CSG3924PT, CTB3924NT, CTB3924PT ILLUSTRATED PARTS BREAKDOWN THERMOSTAT-CONTROLLED MODELS VRL24NT, VRL24PT VRL30NT, VRL30PT CSG3924NT, CSG3924PT CTB3924NT, CTB3924PT For more information, visit www.desatech.com For more information, visit www.desatech.com 110021-01G...
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Page 31: Parts List
PARTS LIST THERMOSTAT-CONTROLLED MODELS This list contains replaceable parts used in your heater. When ordering parts, follow the instructions listed under Replacement Parts on page 37 of this manual. KEY VRL24NT VRL24PT CSG3924NT CSG3924PT VRL30NT 110097-01 110097-01 110328-01 110061-03 110061-02 110061-02 111124-01 111124-01... - Page 32 ILLUSTRATED PARTS BREAKDOWN Models VRL24NR, VRL24PR, VRL30NR, VRL30PR CSG3924NR, CSG3924PR, CTB3924NR, CTB3924PR, CSG3930NR, CSG3930PR ILLUSTRATED PARTS BREAKDOWN REMOTE-READY MODELS VRL24NR, VRL24PR VRL30NR, VRL30PR CSG3924NR, CSG3924PR CTB3924NR, CTB3924PR CSG3930NR, CSG3930PR For more information, visit www.desatech.com For more information, visit www.desatech.com Natural Gas...
- Page 33 100639-03 GA6060 GA6060 GA6060 For more information, visit www.desatech.com For more information, visit www.desatech.com 110021-01G Models VRL24NR, VRL24PR, VRL30NR, VRL30PR CSG3924NR, CSG3924PR, CTB3924NR, CTB3924PR, PART NUMBER FOR CSG3930NR CSG3930PR CTB3924NR CTB3924PR 110097-01 110097-01 110061-03 110328-01 110061-01 110061-01 111124-01 111124-01 ____...
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Page 34: Accessories
Purchase these heater accessories from your local dealer. If they can not supply these accessories, call DESA Heating Products at 1-866-672-6040 for referral information. You can also write to the address listed on the back page of this manual. -
Page 35: Owner's Registration Form
Address: City: Home Phone: E-Mail: Please answer the following questions to register your product with DESA Heating Products: 1. 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? 3. - Page 36 Postage Required 2701 Industrial Drive P.O. Box 90004 Bowling Green, KY 42102-9004 For more information, visit www.desatech.com For more information, visit www.desatech.com TAPE 110021-01G...
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Page 37: Replacement Parts
You may have further questions about installation, operation, or troubleshooting. If so, contact DESA Heating Products’ Technical Service Department at 1-866-672-6040. When calling, please have your model and serial numbers of your heater ready. You can also visit DESA Heating Products’ technical services web site at www.desatech.com. - Page 38 For more information, visit www.desatech.com For more information, visit www.desatech.com 2701 Industrial Drive P.O. Box 90004 Bowling Green, KY 42102-9004 www.desatech.com 110021 01 NOT A UPC 110021-01 Rev. G 05/03 110021-01G...