Table of Contents
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For more information, visit www.desatech.com
For more information, visit www.desatech.com
Remote-Ready and Variable Manually-Controlled 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 4 of this manual.
This appliance may be installed in an aftermarket,* 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
Save this manual for future reference.
Save this manual for future reference.
UNVENTED (VENT-FREE) GAS LOG HEATER
TM
OWNER'S OPERATION AND INSTALLATION MANUAL
("A" Models) 18", 24", and 30"
("C" Models) 18", 24", and 30"
Variable Manually-Controlled
("B" Models) 18", 24", and 30"
LO
Thermostatically-Controlled
PILOT
OFF
HI
WARNING: Improper installation, adjust-
ment, alteration, service, or maintenance
can cause injury or property damage. Re-
fer to this manual for correct installation
and operational procedures. For assis-
tance or additional 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
approved ventless firebox. 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 stat-
ing it has not been tested or should not be
used with unvented gas logs.
Remote-Ready
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Table of Contents
Related Manuals for Desa A, B, C
Summary of Contents for Desa A, B, C
- Page 1 For more information, visit www.desatech.com For more information, visit www.desatech.com Remote-Ready and Variable Manually-Controlled 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.
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Page 2: Table Of Contents
TABLE OF CONTENTS SAFETY INFORMATION TABLE OF CONTENTS SAFETY INFORMATION ... 2 PRODUCT IDENTIFICATION ... 3 OPTIONAL REMOTE CONTROL ACCESSORIES ... 4 LOCAL CODES ... 4 UNPACKING ... 4 PRODUCT FEATURES ... 4 AIR FOR COMBUSTION AND VENTILATION ... 4 INSTALLATION ... -
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. Do not place propane/LP supply tank(s) inside any structure. Lo- cate propane/LP supply tank(s) outdoors (propane/LP units only). If you smell gas •... -
Page 4: Optional Remote Control Accessories
OPTIONAL REMOTE CONTROL ACCESSORIES LOCAL CODES UNPACKING PRODUCT FEATURES AIR FOR COMBUSTION AND VENTILATION Providing Adequate Ventilation OPTIONAL REMOTE CONTROL ACCESSORIES There are four optional remote controls that can be purchased separately for Remote-Ready Models Only: • wall switch • hand-held ON/OFF remote •... -
Page 5: Air For Combustion And Ventilation
Example: 2560 cu. ft. (volume of space) x 20 = 51,200 (maximum Btu/Hr the space can support) Add the Btu/Hr of all fuel burning appliances in the space. Vent-free heater Gas water heater* Gas furnace Vented gas heater Gas fireplace logs... -
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 for Vent-Free Operation (Cont.) 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.
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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 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 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 INSTALLATION Continued 4. For Variable Manually-Controlled and Thermostatically-Con- trolled Models mark screw locations through holes in mount- ing brackets (see Figure 13). For Remote-Ready Models mark screw locations through holes in front panel of base (see Fig- ure 14). If installing in a brick-bottom fireplace, mark screw locations in mortar joint of bricks.
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Page 12: Connecting To Gas Supply
INSTALLATION Connecting To Gas Supply INSTALLATION Continued CONNECTING TO GAS SUPPLY WARNING: This appliance requires a 1/2" NPT (National Pipe Thread) inlet connection to the pres- sure regulator. WARNING: A qualified service person must con- nect heater to gas supply. Follow all local codes. CAUTION: Never connect propane/LP fireplace directly to the propane/LP supply. -
Page 13: Checking Gas Connections
INSTALLATION Continued CSA Design-Certified Equipment Shutoff Valve With 1/8" NPT Tap* PROPANE/LP From External Regulator (11" W.C.** to 14" W.C. Pressure) NATURAL From Gas 3" Minimum Meter (5" W.C.** to 10.5" W.C. Pressure) Pipe Joint Nipple Sediment Trap Figure 16 - Gas Connection (Variable Manually-Controlled and Thermostatically-Controlled Models Only) CSA Design-Certified Equipment Shutoff Valve With 1/8"... -
Page 14: Installing Logs
INSTALLATION Checking Gas Connections (Cont.) Installing Logs INSTALLATION Continued Pressure Testing Heater Gas Connections 1. Open equipment shutoff valve (see Figure 18). Open main gas valve located on or near gas meter for natural gas or open propane/LP supply tank valve. Make sure control knob of heater is in the OFF position. - Page 15 INSTALLATION Continued Notch Front Log (#1) Grate Prongs Metal Grate Bar Figure 21 - Installing Front Log (#1) [18" Variable Manually- Controlled Set Shown] Middle Log (#2) Groove Metal Post Metal Post Figure 22 - Installing Middle Log (#2) [18" Variable Manually- Controlled Set Shown] Note: Your appliance may vary from model shown but log placement will be the same.
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Page 16: Operating Heater
OPERATING HEATER (THERMOSTAT CONTROLLED MODELS) For Your Safety Read Before Lighting Lighting Instructions OPERATING HEATER THERMOSTAT-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. -
Page 17: To Turn Off Gas To Appliance
OPERATING HEATER Continued CAUTION: Do not try to adjust heating levels by using the equipment shutoff valve. TO TURN OFF GAS TO APPLIANCE Shutting Off Heater Turn control knob clockwise Shutting Off Burners Only (pilot stays lit) Turn control knob clockwise THERMOSTAT CONTROL OPERATION The thermostat control knob can be set to any comfort level... -
Page 18: For Your Safety Read Before Lighting
OPERATING HEATER (MANUALLY-CONTROLLED MODELS) Lighting Instructions (Cont.) Variable Control Operation To Turn Gas Off To Appliance Manual Lighting Procedure OPERATING HEATER (REMOTE-READY MODELS) For Your Safety Read Before Lighting OPERATING HEATER Continued Wait five (5) minutes to clear out any gas. Then smell for gas, including near the floor. -
Page 19: Lighting Instructions
OPERATING HEATER Continued C. Use only your hand to push in or turn the gas control knob. Never use tools. If the knob will not push in or turn by hand, don’t try to repair it, call a qualified service techni- cian or gas supplier. - Page 20 OPERATING HEATER (REMOTE-READY MODELS) Lighting Instructions (Cont.) To Turn Gas Off To Appliance Manual Lighting Procedure Optional Remote Operation OPERATING HEATER Continued Keep control knob pressed in for 30 seconds after lighting pilot. After 30 seconds, release control knob. • If control knob does not pop out when released, contact a qualified service person or gas supplier for repairs.
- Page 21 OPERATING HEATER Continued GHRC Series Operation: 2a. Press the ON/OFF button to turn the burners on and off. When turning burners off, the pilot will remain lit. GHRCTA Series Operation: 2b. Press the AUTO/ON/OFF button on the hand-held remote control (see Figure 33). The lights to the left of the button will show AUTO, ON, or OFF.
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Page 22: Inspecting Burners
INSPECTING BURNERS Pilot Flame Pattern Front Burner Flame Pattern INSPECTING BURNERS Check pilot flame pattern and burner flame patterns often. PILOT FLAME PATTERN Figure 34 shows a correct pilot flame pattern. Figure 35 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 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 25 TROUBLESHOOTING Continued OBSERVED PROBLEM One or both burners do not light after ODS/ pilot is lit Delayed ignition of one or both burners Burner backfiring during combustion Yellow flame in front burner during burner combustion Slight smoke or odor during initial operation Heater produces a whistling noise when burners are lit White powder residue forming within burner...
- 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 SPECIFICATIONS 18" Thermostat-Controlled Btu (Variable) 16,000/26,000 Type Gas Propane/LP Only - Natural Ignition Piezo Manifold Pressure 7.9" W.C. - 3.4" W.C. Inlet Gas Pressure (in. of water) Maximum 14" - 10.5" Minimum* 11" - 5" Shipping Weight 26 lbs. * For purpose of input adjustment 18"... -
Page 29: Wiring Diagram
TECHNICAL SERVICE You may have further questions about installation, operation, or troubleshooting. If so, contact DESA International’s Technical Service Department at (1-866-672-6040). You can also visit DESA International’s technical services web site at www.desatech.com. For more information, visit www.desatech.com For more information, visit www.desatech.com... -
Page 30: Illustrated Parts Breakdown And Parts List
ILLUSTRATED PARTS BREAKDOWN Variable Manually-Controlled Split Oak Models VS18NVC, E18N, VS18PVC, E18P, VS24NVC, E24N, VS24PVC, E24P, VS30NVC and VS30PVC ILLUSTRATED PARTS BREAKDOWN VARIABLE MANUALLY- CONTROLLED SPLIT OAK MODELS VS18NVC, E18N, VS18PVC, E18P, VS24NVC, E24N, VS24PVC, E24P, VS30NVC and VS30PVC 18" Model Only For more information, visit www.desatech.com For more information, visit www.desatech.com 24"... - Page 31 PARTS LIST VARIABLE MANUALLY-CONTROLLED SPLIT OAK MODELS This list contains replaceable parts used in your heater. When ordering parts, follow the instructions listed under Replacement Parts on page 29 of this manual. VS18NVC VS18PVC E18N E18P 104388-01 104388-01 — — —...
- Page 32 ILLUSTRATED PARTS BREAKDOWN Thermostat-controlled Models VS18NTB, VS18PTB, VS24NTB, VS24PTB, VS30NTB and VS30PTB ILLUSTRATED PARTS BREAKDOWN THERMOSTAT-CONTROLLED MODELS VS18NTB, VS18PTB, VS24NTB, VS24PTB, VS30NTB and VS30PTB For more information, visit www.desatech.com For more information, visit www.desatech.com 24" and 30" Models Only 18" Model Only 6-1 6-2 104415...
- Page 33 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 29 of this manual. VS18NTB VS18PTB 104388-01 104388-01 — — — — 104390-01 104390-01 104392-01 104392-01 104394-01 104394-01...
- Page 34 ILLUSTRATED PARTS BREAKDOWN Remote-Ready Models VS18NRA, E18NR, VS18PRA, E18PR, VS24NRA, E24NR, VS24PRA, E24PR, VS30NRA, E30NR, VS30PRA, and E30PR ILLUSTRATED PARTS BREAKDOWN REMOTE-READY VARIABLE CONTROL VS18NRA, E18NR, VS18PRA, E18PR, VS24NRA, E24NR, VS24PRA, E24PR, VS30NRA, E30NR, VS30PRA, and E30PR For more information, visit www.desatech.com For more information, visit www.desatech.com 24"...
- Page 35 PARTS LIST REMOTE-READY VARIABLE CONTROL This list contains replaceable parts used in your heater. When ordering parts, follow the instructions listed under Replacement Parts on page 29 of this manual. VS18NRA VS18PRA E18NR E18PR 104388-01 104388-01 104390-01 104390-01 104392-01 104392-01 104394-01 104394-01 M11084-26...
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Page 36: Accessories
ACCESSORIES ACCESSORIES Purchase these heater accessories from your local dealer. If they can not supply these accessories, call DESA International at 1-866-672-6040 for referral information. You can also write to the address listed on the back page of this manual. - Page 37 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 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 104415...
- Page 39 NOTES NOTES _______________________________________________________________________________________________ _______________________________________________________________________________________________ _______________________________________________________________________________________________ _______________________________________________________________________________________________ _______________________________________________________________________________________________ _______________________________________________________________________________________________ _______________________________________________________________________________________________ _______________________________________________________________________________________________ _______________________________________________________________________________________________ _______________________________________________________________________________________________ _______________________________________________________________________________________________ _______________________________________________________________________________________________ _______________________________________________________________________________________________ _______________________________________________________________________________________________ _______________________________________________________________________________________________ _______________________________________________________________________________________________ _______________________________________________________________________________________________ _______________________________________________________________________________________________ _______________________________________________________________________________________________ _______________________________________________________________________________________________ _______________________________________________________________________________________________ _______________________________________________________________________________________________ _______________________________________________________________________________________________ _______________________________________________________________________________________________ _______________________________________________________________________________________________ _______________________________________________________________________________________________ _______________________________________________________________________________________________ _______________________________________________________________________________________________ _______________________________________________________________________________________________ _______________________________________________________________________________________________ _______________________________________________________________________________________________ _______________________________________________________________________________________________ _______________________________________________________________________________________________ _______________________________________________________________________________________________ For more information, visit www.desatech.com For more information, visit www.desatech.com 104415...
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Page 40: Warranty Information
DESA International warrants this product to be free from defects in materials and components for four (4) years and five (5) years on stainless steel burners from the date of first purchase, provided that the product has been properly installed, operated and maintained in accordance with all applicable instructions.