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UNVeNTed (VeNT-FRee) Gas o l G Hea TeR
oWNeR’s oPeRa TIoN aNd INsT alla TIoN MaNU al
Models VF-18N-MHd , VF-18P-MHd, VF-24N-MHd
aNd VF-24P-MHd
WARNING: 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 other
appliance.
— WHAT TO DO IF YOU SMELL GAS
• Do not try to light any appliance.
• Do not
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WARNING: 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. WARNING: This appliance is for installation only in a solid-fuel burning masonry or UL127 factory-built fire- place or in a listed ventless firebox enclosure. It is de- sign-certified for these
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saFeTy INFoRMa TIoN WARNING: Do not allow fans to blow directly into the heater. WARNING: This product con- tains and/or generates chemicals Avoid any drafts that alter burner known to the State of California flame patterns. Ceiling fans can to cause cancer or birth defects create drafts that alter burner or other reproductive harm. flame patterns. Altered burner patterns can cause sooting. IMPORTANT: Read this owner’s manual carefully and completely WARNING: Do not place before tryi
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12. Do not use this heater to cook food or burn saFeTy INFoRMa TIoN paper or other objects. Continued 13. Do not use heater if any part has been exposed 1. This appliance is only for use with the type of to or under water. Immediately call a qualified gas indicated on the rating plate. This appliance service technician to inspect the room heater is not convertible for use with other gases. and to replace any part of the control system and 2. Do not place propane/LP supply tank(s) in- any
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l oCal Codes aIR FoR CoMBUsTIoN Install and use heater with care. Follow all local aNd VeNTIla TIoN codes. In the absence of local codes, use the lat- est edition of The National Fuel Gas Code ANSI WARNING: This heater shall Z223.1/NFPA 54*. not be installed in a confined *Available from: space or unusually tight con- American National Standards Institute, Inc. struction unless provisions are 1430 Broadway New York, NY 10018 provided for adequate combus- National Fire Protection Associati
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1. Determine the volume of the space (length x aIR FoR CoMBUsTIoN width x height). aNd VeNTIla TIoN Length x Width x Height =__________cu. ft. Continued (volume of space) Example: Space size 20 ft. (length) x 16 ft. Unusually tight construction is defined as (width) x 8 ft. (ceiling height) = 2,560 cu. ft. construction where: (volume of space) a. walls and ceilings exposed to the out- If additional ventilation to adjoining room is side atmosphere have a continuous supplied with grills
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Ventilation Air From Outdoors aIR FoR CoMBUsTIoN Provide extra fresh air by using ventilation grills or aNd VeNTIla TIoN ducts. You must provide two permanent openings: Continued one within 12" of the ceiling and one within 12" of the floor. Connect these items directly to the If the actual Btu/Hr used is less than the maximum outdoors or spaces open to the outdoors. These Btu/Hr the space can support, the space is an uncon- spaces include attics and crawl spaces. Follow the fined space.
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INsTalla TIoN WARNING: Never install the NOTICE: This heater is intended heater for use as supplemental heat. • in a bedroom or bathroom Use this heater along with your • in a recreational vehicle primary heating system. Do not • where curtains, furniture, cloth- install this heater as your pri- ing or other flammable objects mary heat source. If you have a are less than 42" from the front, central heating system, you may top or sides of the heater run system’s circulating blower • i
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INsTalla TIoN Continued Example INSTALLATION AND CLEARANCES FOR VENT-FREE OPERATION WARNING: Maintain the minimum clearances. If you can, * provide greater clearances from floor, ceiling and adjoining wall. *Minimum 16" from Side Wall Figure 4 - Minimum Clearance for MINIMUM FIREPLACE CLEARANCE TO Combustible to Wall COMBUSTIBLE MATERIALS Minimum Noncombustible Material Log Size 18" or 4" Clearances If Not Using Mantel Side Wall 16" Note: If using a mantel, proceed to If
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INsTalla TIoN Continued Noncombustible Requirements for Safe Installation Material Distance (A) 1" or more Noncombustible material OK Between 8" and Install fire place hood accessory ( see 1" Accessories, page 5). Less than 8 Noncombustible material must be ex- tended to at least 8". See Between 8" and 12", above. If you cannot extend material, you must operate heater with flue damper open. Figure 5 - Heat Resistant Material (Slate, Marble, Tile, etc.) Above Fireplace Mantel Shelf 10"
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INsTalla TIoN Continued MANTEL CLEARANCES Combustible Material 14" In addition to meeting noncombustible material Min. clearances, you must also meet required clearances between fireplace openings and mantel shelf on Noncombustible Material each side of the fireplace. If you do not meet the Figure 8 - Minimum Fireplace Clearances clearances listed below, you will need a hood. If Installed at Floor Level Determining Minimum Mantel Clearance If you meet minimum clearance between mantel s
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INsTalla TIoN Installation Items Needed Continued Before installing heater, make sure you have the items listed below. Installation Items Needed • external regulator (for propane/LP units only, • control cover kit (provided with heater) supplied by installer) • approved flexible gas hose (if allowed by local • piping (check local codes) codes) • sealant (resistant to propane/LP gas) • sealant (resistant to propane/LP gas, not • equipment shutoff valve * provided) • test gauge connection * 1
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We recommend that you install a sediment trap in INsTalla TIoN supply line as shown in Figure 12. Locate sediment Continued trap where it is within reach for cleaning. Install Installation must include an equipment shutoff in piping system between fuel supply and heater. valve, union and plugged 1/8" NPT tap. Locate NPT Locate sediment trap where trapped matter is not tap within reach for test gauge hook up. NPT tap likely to freeze. A sediment trap traps moisture and must be upstream
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4. Check all joints from equipment shutoff valve INsTalla TIoN to control valve (see Figure 14 or 15). Apply Continued noncorrosive leak detection fluid to all joints. 4. Check all joints of gas supply piping system. Bubbles forming show a leak. Apply noncorrosive leak detection fluid to all 5. Correct all leaks at once. joints. Bubbles forming show a leak. 6. Light heater (see Operating Heater, page 15). 5. Correct all leaks at once. Check all other internal joints for leaks. 6. Reconnec
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REMOTE LIGHTING INsTalla TIoN Continued INSTRUCTIONS 4. Add lava rock and small decorative logs WARNING: around base of heater if desired. You may • If fireplace has glass doors, place lava rock and log pieces up to flat burner. never operate this heater with DO NOT place rock or logs on front burner or on logs. Placing any material on unit other glass doors closed. If you op- than ember material on front burner may result erate heater with doors closed, in production of carbon monoxid
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Shut-off Procedure oPeRa TING HeaTeR To save battery power; press to turn main Continued gas to pilot gas. Press OFF button to shut off the device including pilot flame. The device can 6. Press the buttons and at the same be shut off with ON/OFF switch, thus disabling time. A short acoustic signal confirms the start sequence has begun. the remote hand set. Further short acoustic signals (0.2 sec., 1 Hz) Setting The Display ( °C/24h and °F /12h) indicate the ignition process until it i
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Lighting with a Match oPeRa TING HeaTeR 1. STOP! Read the safety information on Continued page 15 . • Timer: The timer mode (TIMER) operates 2. Make sure equipment shutoff valve is much like the temperature mode above. The fully open. timer setting allows you to set specific times 3. Turn motor-knob clockwise to to for on and off. (There are 2 burner on and OFF position. 2 burner off cycles every 24 hours.) If the 4. Wait (5) minutes to clear any gas and then reading for the nighttime
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oPeRa TING HeaTeR INsPeCTING BURNeRs Continued Check pilot flame pattern and burner flame pat- terns often. Lighting with Piezo Ignitor 1. Disconnect ignitor cable from receiver and PILOT FLAME PATTERN connect to Piezo Ignitor Tab (see Figure 18, Figure 20 shows a correct pilot flame pattern. page 17 and Wiring Diagram on page 24). Figure 21 shows an incorrect pilot flame pattern. 2. STOP! Read safety information on page 15, The incorrect pilot flame is not touching the 3. Make sure equipm
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INsPeCTING BURNeRs CleaNING aNd Continued MaINTeNaNCe BURNER FLAME PATTERN WARNING: Turn off heater Figure 22 shows correct burner flame pattern. and let cool before cleaning. NOTICE: Do not mistake orange flames with yellow tipping. Dirt CAUTION: You must keep con- or other fine particles are burned trol areas, burner and circulating by heater, causing brief patches air passageways of heater clean. of orange flame. Inspect these areas of heater If burner flame pattern is incorrect,
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5. Check the injector holder located at the end CleaNING aNd of the burner tube again. Remove any large MaINTeNaNCe particles of dust, dirt, lint or pet hair with a Continued soft cloth or vacuum cleaner nozzle. 6. Blow air into the primary air holes on the 1. Remove two screws from back of unit that injector holder. attach main log assembly to base assembly 7. In case any large clumps of dust have now been (see Figure 24). pushed into the burner repeat steps 5 and 6. 2 . Remove screws
