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N
O
T
O
UNVENTED (VENT-FREE)
NATURAL GAS LOG HEATER
VARIABLE MANUALLY-CONTROLLED MODELS ALSO DESIGN-CERTIFIED AS
VENTED DECORATIVE APPLIANCES
OWNER’S OPERATION AND INSTALLATION MANUAL
VFN18R
VFN24R
VFN30R
18", 24", and 30"
Remote-Ready
™
EMBER MASTER
WARNING: Improper installation, adjust-
WARNING: If the information in this
ment, alteration, service, or maintenance
manual is not followed exactly, a fire or
can cause injury or property damage.
explosion may result causing property
Refer to this
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FIREPLACE MANUFACTURERS INC. UNVENTED NATURAL GAS LOG HEATER 4. Before installing in a solid fuel burn- SAFETY Due to high temperatures, the ing fireplace, the chimney flue and fire- appliance should be located out box must be cleaned of soot, creosote, INFORMATION of traffic and away from furniture ashes, and loose paint by a qualified and draperies. WARNINGS chimney cleaner. Creosote will ignite if highly heated. Inspect chimney flue IMPORTANT: Read this owner’s Do not place clothing or othe
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OWNER’S MANUAL SAFETY LOCAL CODES PRODUCT Install and use heater with care. Follow all INFORMATION FEATURES local codes. In the absence of local codes, use Continued the latest edition of The National Fuel Gas OPERATION Code, ANS Z223.1, also known as NFPA 54*. 14. Turn heater off and let cool before servic- This heater is clean burning. It requires no ing, installing, or repairing. When using *Available from: outside venting. There is no heat loss out a the hand-held remote accessory, make sure
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FIREPLACE MANUFACTURERS INC. UNVENTED NATURAL GAS LOG HEATER Confined and Unconfined Space PROVIDING ADEQUATE AIR FOR VENTILATION The National Fuel Gas Code, ANS Z223.1 COMBUSTION AND defines a confined space as a space whose The following are excerpts from National VENTILATION volume is less than 50 cubic feet per 1,000 Fuel Gas Code, NFPA 54/ANS Z223.1, Sec- 3 Btu per hour (4.8 m per kw) of the aggre- tion 5.3, Air for Combustion and Ventilation. gate input rating of all appliances installed
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OWNER’S MANUAL 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. 1. Determine the volume of the space (length x width x height). Length x Width x Height = _________________ cu.
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FIREPLACE MANUFACTURERS INC. UNVENTED NATURAL GAS LOG HEATER AIR FOR 12" COMBUSTION AND VENTILATION Ventilation Continued Ventilation Grills Grills Into Adjoining Room, Into Adjoining VENTILATION AIR Or Option 2 Room, Remove Ventilation Air From Inside Option 1 Door into Building Adjoining This fresh air would come from an adjoining Room, unconfined space. When ventilating to an Option adjoining unconfined space, you must pro- 3 vide two permanent openings: one within 12" of the ceiling and o
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OWNER’S MANUAL LOG SIZING REQUIREMENTS INSTALLATION WARNING: Never install the Minimum Firebox Size heater NOTICE: This heater is intended Log Front Rear* • in a bedroom or bathroom un- for use as supplemental heat. Use less installed as a vented ap- Size Height Depth Width Width this heater along with your pri- pliance, see page 10 18" 17" 14" 20" 14" mary heating system. Do not in- • in a recreational vehicle 24" 17" 14" 26" 18" stall this heater as your primary • where curtains, furniture, h
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FIREPLACE MANUFACTURERS INC. UNVENTED NATURAL GAS LOG HEATER IMPORTANT: If you cannot meet these If Using Mantel INSTALLATION minimum clearances, you must operate You must have noncombustible material(s) Continued heater with chimney flue damper open. Go above the fireplace opening. Noncombus- to Installing Damper Clamp Accessory for tible materials (such as slate, marble, tile, NOTICE: Manual control heaters Vented Operation, page 10. etc.) must be at least 1/2 inch thick. With may be used as a
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OWNER’S MANUAL Mantel Shelf INSTALLATION 10" Underside of Continued 8" Mantel Shelf 6" MANTEL CLEARANCES 1 2 /2" In addition to meeting noncombustible mate- rial clearances, you must also meet required All minimum clearances between fireplace opening and distances are mantel shelf. If you do not meet the clear- in inches ances listed below, you will need a hood. Minimum Non- (A) Combustible Log Set Determining Minimum Mantel Log Set Material 12" 18" 20" 22" 24" 24"/30" Models 24" Models 24" a
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FIREPLACE MANUFACTURERS INC. UNVENTED NATURAL GAS LOG HEATER Damper Clamp INSTALLATION Continued INSTALLING DAMPER CLAMP ACCESSORY FOR Damper Damper VENTED OPERATION Clamp Damper Note: When used as a vented heater, appli- Damper ance 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 model, you may use this heater as a vented Masonry Fireplace Manufactured Fireplace product. There are th
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OWNER’S MANUAL IMPORTANT: Install an equipment shutoff Installation Items Needed INSTALLATION valve in an accessible location. The equip- Before installing heater, make sure you have Continued ment shutoff valve is for turning on or the items listed below. Gas Control shutting off the gas to the appliance. • piping (check local codes) Apply pipe joint sealant lightly to male • sealant (resistant to propane/LP gas) threads. This will prevent excess sealant • equipment shutoff valve * from going i
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FIREPLACE MANUFACTURERS INC. UNVENTED NATURAL GAS LOG HEATER Test Pressures Equal To or Less Than Pressure Testing Heater Gas INSTALLATION 1/2 PSIG (3.5 kPa) Connections Continued 1. Close equipment shutoff valve (see Fig- 1. Open equipment shutoff valve (see Fig- ure 14). CHECKING GAS ure 14). 2. Pressurize supply piping system by ei- CONNECTIONS 2. Open main gas valve located on or near ther using compressed air or opening gas meter. main gas valve located on or near gas WARNING: Test all gas
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OWNER’S MANUAL Peg INSTALLATION Rear Log (#3) Front Log (#1) Continued Groove in Groove in Back of Log Back of Log INSTALLING LOGS Notch Grate Prong WARNING: Failure to posi- tion the parts in accordance with these diagrams or failure to use only parts specifically approved Grate with this heater may result in prop- Prong erty damage or personal injury. Grate Each log is marked with a number. These Prongs numbers will help you identify the log when installing. It is very important to install th
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O N O T FIREPLACE MANUFACTURERS INC. UNVENTED NATURAL GAS LOG HEATER 1. STOP! Read the safety information, LIGHTING OPERATING column 1. INSTRUCTIONS HEATER 2. Make sure equipment shutoff valve is fully open. WARNING FOR YOUR SAFETY • If fireplace has glass doors, 3. Set selector switch in the OFF position. READ BEFORE never operate this heater with LIGHTING glass doors closed. If you oper- WARNING: Burners will come ate heater with doors closed, on automatically within one WARNING: If you do
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OWNER’S MANUAL For wall thermostat operation, follow TO TURN OFF GAS TO OPERATING instruction supplied with thermostat ac- APPLIANCE HEATER cessory GWMT1. For wall switch opera- Shutting Off Heater tion follow instructions supplied with Continued GWMS2. 1. Turn control knob clockwise 8. Keep control knob pressed in for 30 to the OFF position. seconds after lighting pilot. After 30 NOTICE: You must light the pilot 2a. Set selector switch in the OFF position. seconds, release control knob. befor
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P O F F O FIREPLACE MANUFACTURERS INC. UNVENTED NATURAL GAS LOG HEATER OPERATING INSPECTING Pilot Burner Thermocouple HEATER BURNERS Continued Check pilot flame pattern and burner flame patterns often. IMPORTANT: This remote control has been specially engineered to take PILOT FLAME PATTERN an air temperature sample every 5.5 minutes in the auto mode. It will not Figure 25 shows a correct pilot flame pat- respond immediately to the tempera- tern. Figure 26 shows an incorrect pilot ture setting be
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OWNER’S MANUAL 5. Blow air into the primary air holes on INSPECTING CLEANING AND the injector holder. BURNERS MAINTENANCE 6. In case any large clumps of dust have now been pushed into the burner repeat Continued steps 3 and 4. WARNING: Turn off heater and let cool before cleaning. FRONT BURNER FLAME Clean the pilot assembly also. A yellow tip on the pilot flame indicates dust and dirt in PATTERN the pilot assembly. There is a small pilot air Figure 27 shows correct front burner flame CAUTION: Y
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FIREPLACE MANUFACTURERS INC. UNVENTED NATURAL GAS LOG HEATER TROUBLESHOOTING WARNING: Turn off and un- CAUTION: Never use a wire, Note: For additional help, visit DESA plug heater and let cool before needle, or similar object to clean International’s technical service web site servicing. Only a qualified ser- ODS/pilot. This can damage ODS/ at www.desatech.com. vice person should service and pilot unit. repair heater. Note: All troubleshooting items are listed in order of operation. OBSERVED PR
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OWNER’S MANUAL TROUBLESHOOTING Continued OBSERVED PROBLEM POSSIBLE CAUSE REMEDY One or both burners do not light after ODS/ 1. Inlet gas pressure is too low 1. Contact local natural gas company pilot is lit 2. Burner orifice(s) clogged 2. Clean burner(s) (see Cleaning and Main- tenance, page 17) or replace burner orifice(s) 3. Mislocated crossover tube 3. Contact qualified service person 4. Burner orifice(s) diameter is too small 4. Replace burner orifice(s) 5. Selector switch in OFF position 5.
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FIREPLACE MANUFACTURERS INC. UNVENTED NATURAL GAS LOG HEATER 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. • If you cannot reach your gas supplier, call the fire department. IMPORTANT: Operating heater where impurities in air exist may create odors. Clea
