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Desa VFRMV24PA - page 1
Sav e this manual for future reference. For more information, visit www .desatech.com W ARNING: If the information in this manual is not fol- lowed 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 ...
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Desa VFRMV24PA - page 2
www .desatech.com 1 14745-01B 2 W ARNING: Improper installation, adjustment, altera- tion, service or maintenance can cause injury or prop- erty damage. Refer to this manual for correct installation and operational procedures. For assistance or addi- tional information consult a qualified installer , service agency or the gas supplier . W ARN ING ...
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Desa VFRMV24PA - page 3
www .desatech.com 1 14745-01B 3 SAFETY INFORMA TION IMPORT ANT : Read this owner ’ s man ual care ful ly and compl etel y before trying to assemble, op- erate or service this log set. Improper use of this log set can cause serious injury or death from burns, fire, explosion, electrical shock and carbon monoxide poisoning. DANGER: Carbon monoxide ...
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Desa VFRMV24PA - page 4
www .desatech.com 1 14745-01B 4 Keep the appliance area clear and free from combustible ma- terials, gasoline and other flam- mable vapors and liquids. Solid fuels shal l not be burned in a fireplace in which an unvented room heater installed. Ch ild ren an d ad ul ts sh ou ld be al ert ed t o t he ha zar d of h ig h te m- pe rat ure an d sho uld ...
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Desa VFRMV24PA - page 5
www .desatech.com 1 14745-01B 5 PRODUCT IDENTIFICA TION Figure 1 - Product Identification Log Set Chassis Assembly Lava Rock LOCAL CODES Install and use the heater with care. Follow all local codes. In the absence of local codes, use the latest edition of the National Fuel Gas Code ANSI Z223.1/NFP A 54* *A vailable from: American National Standard ...
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Desa VFRMV24PA - page 6
www .desatech.com 1 14745-01B 6 AIR FOR COMB USTION AND VENTILA TION W ARNING: This heater shall not be installed in confined space or unusually tight con- struction unless provisions are provided for adequate combus - tion and ventilation air . Read the following instructions to insure pro per f resh air for this and other fuel-bu rning ap pliance ...
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Desa VFRMV24PA - page 7
www .desatech.com 1 14745-01B 7 1. Determine the volume of the space (length x width x height). Length x Width x Height = ________ cu. ft. (volume of space) Example: Space size 20 ft. (length) x 16 ft. (width) x 8 ft. (ceiling height) = 2560 cu. ft. (volume of space) If additional ventilation to adjoining room is sup - plied with grills or openings ...
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Desa VFRMV24PA - page 8
www .desatech.com 1 14745-01B 8 V entilation Air From Outdoors Prov ide extra fresh air by using ventilat ion grills or ducts. Y ou must provide two permanent openings: one within 12" of the ceiling and one within 12" of the floor . Connect these items directly to the outdoors or spaces open to the outdoors. These spaces include attics a ...
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Desa VFRMV24PA - page 9
www .desatech.com 1 14745-01B 9 W ARNING: Seal any fresh air vents or ash clean-out doors located on floor or wall of fire- place. If not, drafting may cause pilot outage or sooting. Use a heat-resistant sealant. Do not seal chimney flue damper . W ARNING: Never install the heater • in a b edr oom or bat hro om unless installed as a vented app ...
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Desa VFRMV24PA - page 10
www .desatech.com 1 14745-01B 10 NOTICE: Non thermostat con- trolled heaters may be used as a vented product. If so, you must always run heater with chimney flue damper open and damper cla mp inst al led . If r unn ing h eat er with damper open, noncombus- tible mat erial abo ve th e fir eplac e opening is not needed. Go to Installing Damper Clam ...
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Desa VFRMV24PA - page 11
www .desatech.com 1 14745-01B 1 1 MANTEL CLEARANCES In addition to meeting noncombustible material clea ranc es, you must also meet requir ed clearan ces 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 mante ...
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Desa VFRMV24PA - page 12
www .desatech.com 1 14745-01B 12 INST ALLA TION Continued INST ALLING DAMPER CLAMP ACCESSOR Y FOR VENTED OPERA TION Not e: Whe n used as a ven ted deco rat ive, app lian ce must be installed only in a solid-fuel burning fireplace with a working flue and constructed of noncombustible material. If your heater is a non-thermostatically-controlle d m ...
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Desa VFRMV24PA - page 13
www .desatech.com 1 14745-01B 13 INST ALLA TION Continued Note: Install optional GHRCTB Receiver and Hand-Held Remote Control Kit (see Accessories , page 26) before installing gas log heater . See in - stallation instructions included with the kit. 1 . Apply pipe joint sealant lightly to male threads of gas fitting (not provided). Connect approved ...
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Desa VFRMV24PA - page 14
www .desatech.com 1 14745-01B 14 Installation must include an equipment shutoff va lv e, unio n an d plu gg ed 1/8 " NPT tap . Lo ca te NP T tap within reac h fo r tes t gau ge hook up. NPT tap must be ups trea m fr om heat er ( see Fig ure 13). IMPORT ANT : Install equipment shutoff valve in an accessible location within 6 feet of the appli - ...
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Desa VFRMV24PA - page 15
www .desatech.com 1 14745-01B 15 PRESSURE TESTING GAS SUPPL Y PIPING SYSTEM T est Pressures In Excess Of 1/2 PSIG (3.5 kPa) 1. Disconnect appliance with its appliance main gas valve (control valve) and equipment shutoff valve from gas supply piping system. Pressures in excess of 1/2 psig will damage heater regulator . 2. Cap off open end of gas pip ...
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Desa VFRMV24PA - page 16
www .desatech.com 1 14745-01B 16 OPERA TING HEA TER FOR YOUR SAFETY READ BEFORE LIGHTING W ARNING: If you do not fol- low these instructions exactly , a fire or explosion may result causing property damage, per- sonal injury or loss of life. A. This appliance has a pilot which must be lighted by hand. When lighting the pilot, follow these instruct ...
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Desa VFRMV24PA - page 17
www .desatech.com 1 14745-01B 17 W ARNING: Burners will come on automatically within one minute when the switch is in the ON position after the pilot is lit. 5. W ait five (5) minutes to clear out any gas. Then smell for gas, including near the floor . If you smell gas, STOP! Follow “B” in the safety information, starting in column 1 of this ...
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Desa VFRMV24PA - page 18
www .desatech.com 1 14745-01B 18 OPERA TING HEA TER Continued MANUAL LIGHTING PROCEDURE 1. Follow steps 1 through 6 under Lighting Instructions , page 16. 2. Depress control knob and light pilot with match. 3. Keep cont ro l knob pres sed in for 30 seco nds afte r lighti ng pilot. Aft er 30 seconds , re leas e control knob. Now follow steps 9 throu ...
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Desa VFRMV24PA - page 19
www .desatech.com 1 14745-01B 19 Figure 21 - Thermostat Hand-Held Remote Control Unit (GHRCTB) T urns Hand- Held Remote On or Off and Allows Y ou to Choose the Manual Setting Selects Auto Setting Increases Room T emperature in AUTO Mode Digital Display Shows T emperature and Settings T urns Burners On or Off Decreases Room T emperature in AUTO Mode ...
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Desa VFRMV24PA - page 20
www .desatech.com 1 14745-01B 20 INSPECTING B URNERS Continued BURNER FLAME P A TTERN Figure 24 shows correct burner flame pattern. NOTICE: Do not mistake orange flames with yellow tipping. Dirt or other fine par ticl es ar e b urned by heater , causing brief patches of orange flame. If burner flame pattern is incorrect, as shown in Figure 25 ...
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Desa VFRMV24PA - page 21
www .desatech.com 1 14745-01B 21 1. Shut off the unit, including the pilot. Allow the unit to cool for at least thirty minutes. 2. In spec t b urne r , pi lot an d p rima ry air in let opening on injector holder for dust and dirt (see Figure 26). 3. Blow air through the ports/slots and holes in the burner . 4. Check the injector holder located at t ...
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Desa VFRMV24PA - page 22
www .desatech.com 1 14745-01B 22 TROUBLESHOO TING W AR NIN G: T urn off and unp lug hea ter and let coo l bef or e ser vi ci ng . Only a qualified service person should service and repair heater . CAUTION: Never use a wire, needle or similar object to clean ODS/pilot. This can damage ODS/pilot unit. Note: All troubleshooting items are listed in or ...
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Desa VFRMV24PA - page 23
www .desatech.com 1 14745-01B 23 POSSIBLE CAUSE 1. C o n tr ol k no b n o t f u ll y pr es se d i n 2. Control knob not pressed in long enough 3. Safety interlock system has been triggered 4. Equipment shutoff valve not fully open 5. Pi lo t fla me no t tou ch in g t he r - mo co up le, whi ch a ll ow s the r - mo co up le t o co ol , ca us in g p ...
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Desa VFRMV24PA - page 24
www .desatech.com 1 14745-01B 24 POSSIBLE CAUSE 1. Not enough air 2. Gas regulator defective 1. Resid ues from manufa ctur ing processes and logs curing 1. Turning control knob to HI position when burners are cold 2. Air in gas line 3. Air passageways on heater blocked 4. D ir t y o r p ar t ia l l y c l og g e d burner orifice(s) 1. When heated, ...
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Desa VFRMV24PA - page 25
www .desatech.com 1 14745-01B 25 W ARNING: 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. Fol- low the gas supplier ’ s instructions. • If you cannot reach your gas ...
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Desa VFRMV24PA - page 26
www .desatech.com 1 14745-01B 26 SPECIFICA TIONS VFRMV18NA VFRMV24NA VFRMV18P A VFRMV24P A Btu (V ariable) 24,000/36,000 28,000/39,000 26,000/34,000 31,000/39,000 T ype Gas Natural Gas Only Natural Gas Only Propane/LP Only Propane/LP Only Ignition Piezo Piezo Piezo Piezo Manifold Pressure 3.5" - 1.6"W .C. 3.5" - 1.6"W .C. 10&quo ...
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Desa VFRMV24PA - page 27
www .desatech.com 1 14745-01B 27 W ALL-MOUNT THERMOST A T SWITCH - GWMT1 (Not Shown) For all models. The desired comfort setting can be selected on the wall thermostat and the log heater will automatically cycle from pilot to the heat setting selected. W ALL-MOUNT ON/OFF SWITCH GWMS2 (Not Shown) For all models. Allows the gas log heater to be turne ...
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Desa VFRMV24PA - page 28
www .desatech.com 1 14745-01B 28 ILL USTRA TED P ARTS BREAKDOWN VFRMV18NA, VFRMV18P A VFRMV24NA ( Shown), VFRMV24P A 1 2 3 4 6 7 8 9 10 1 1 12 13 14 15 16 17 18 19 20 21 22 23 24 24 24 24 24 24 24 5 25 26 27 ...
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Desa VFRMV24PA - page 29
www .desatech.com 1 14745-01B 29 P ARTS LIST 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. KEY P ART NUMBER NO. VFRMV18NA VFRMV24NA VFRMV18P A VFRMV24P A DESCRIPTION QTY . 1 1 14854-01 1 14790-01 1 14854-01 1 14790-01 Grate Assembly 1 ...
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Desa VFRMV24PA - page 30
www .desatech.com 1 14745-01B 30 _____________________________________________________ ______________________________________________________ ______________________________________________________ ______________________________________________________ ______________________________________________________ ___________________________________________ ...
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Desa VFRMV24PA - page 31
www .desatech.com 1 14745-01B 31 _____________________________________________________ ______________________________________________________ ______________________________________________________ ______________________________________________________ ______________________________________________________ ___________________________________________ ...
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Desa VFRMV24PA - page 32
2701 Industrial Drive P .O. Box 90004 Bowling Green, KY 42102-9004 www .desatech.com NOT A UPC WARRANTY INFORMA TION KEEP THIS WARRANTY Model Serial No. Date Purchased 1 14745-01 Rev . B 10/04 Always specify model and serial numbers when communicating with the factory . W e reserve the right to amend these specifications at any time without notice ...
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