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UNVENTED (VENT-FREE) GAS LOG HEATER
Also Design-Certified As A Vented Decorative Appliance
OWNER’S OPERATION AND INSTALLATION MANUAL
®
FLAME-MAX
Multi-Sided
Log Design
VYM27NR/PR
FVFM27NR/PR
Remote Control
Patent Pending
Ready Model
WARNING: Improper installation, ad-
WARNING: If the information in this manual
justment, alteration, service, or main-
is not followed exactly, a fire or explosion
tenance can cause injury or property
may result causing property damage, per-
dama
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® FLAME-MAX UNVENTED GAS LOG HEATER • immediately call your gas supplier SAFETY Due to high temperatures, the from a neighbor’s phone. Follow the appliance should be located out INFORMATION gas supplier’s instructions of traffic and away from furniture • if you cannot reach your gas supplier, and draperies. WARNINGS WARNING ICON G 001 call the fire department 5. This heater shall not be installed in a IMPORTANT: Read this owner’s Do not place clothing or other bedroom or bathroom unless install
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WARMER TEMP COOLER AUTO ON OFF OWNER’S MANUAL 16. Turn heater off and let cool before ser- SAFETY PRODUCT vicing, installing, or repairing. Make sure INFORMATION the selector switch is in the OFF posi- FEATURES tion. Only a qualified service person Continued should install, service, or repair heater. OPERATION 13. Do not use this heater to cook food or 17. Make sure the selector switch is in the This heater is clean burning. It requires no burn paper or other objects. OFF position when you are a
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® FLAME-MAX UNVENTED GAS LOG HEATER Confined and Unconfined Space PROVIDING ADEQUATE AIR FOR VENTILATION The National Fuel Gas Code, ANSI Z223.1/ COMBUSTION AND NFPA 54 defines a confined space as a The following are excerpts from National VENTILATION space whose volume is less than 50 cubic Fuel Gas Code, ANSI Z223.1/NFPA 54, Sec- 3 feet per 1,000 Btu per hour (4.8 m per kw) tion 5.3, Air for Combustion and Ventilation. WARNING: This heater shall of the aggregate input rating of all appli- All
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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. ft
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® FLAME-MAX UNVENTED GAS LOG HEATER AIR FOR COMBUSTION AND 12" VENTILATION Continued Ventilation VENTILATION AIR Ventilation Grills Grills Into Adjoining Room, Into Adjoining Ventilation Air From Inside Or Option 2 Room, Building Remove Option 1 Door into This fresh air would come from an adjoining unconfined space. When ventilating to an Adjoining adjoining unconfined space, you must pro- Room, vide two permanent openings: one within Option 12" of the ceiling and one within 12" of the 3 floo
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OWNER’S MANUAL INSTALLATION MINIMUM FIREPLACE WARNING: Never install the CLEARANCE TO heater NOTICE: This heater is intended • in a bedroom or bathroom un- COMBUSTIBLE MATERIALS for use as supplemental heat. Use less installed as a vented ap- this heater along with your pri- Log Size Side Wall Ceiling pliance, see page 10 mary heating system. Do not in- • in a recreational vehicle 27" 16" 42" stall this heater as your primary • where curtains, furniture, heat source. If you have a central cloth
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® FLAME-MAX UNVENTED GAS LOG HEATER IMPORTANT: If you cannot meet these sheet metal, you must have noncombustible INSTALLATION minimum clearances, you must operate material behind it. Noncombustible mate- Continued heater with chimney flue damper open. Go rial must extend at least 8 inches up (for all to Installing Damper Clamp Accessory for models). If noncombustible material is less NOTICE: Manual control heaters Vented Operation, page 10. than 12", you must install the fireplace hood may be u
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OWNER’S MANUAL Mantel Shelf INSTALLATION 10" Underside of 8" Continued Mantel Shelf 6" MANTEL CLEARANCES 1 2 /2" In addition to meeting noncombustible ma- terial clearances, you must also meet re- All minimum quired clearances between fireplace open- distances are ings and mantel shelf on each side of the in inches fireplace. If you do not meet the clearances Minimum Non- (A) Combustible listed below, you will need a hood. Material 12" 18" 20" 22" 24" Determining Minimum Mantel Clearance Top
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® FLAME-MAX UNVENTED GAS LOG HEATER INSTALLATION Continued Damper INSTALLING DAMPER Clamp Damper CLAMP ACCESSORY FOR VENTED OPERATION Damper Note: When used as a vented heater, appli- Clamp 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 product. Damper Damper There are three reasons for operating your heater in the vented mode: 1. The f
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L I P F F O L O OWNER’S MANUAL CONNECTING TO GAS INSTALLATION CAUTION: Use only new, SUPPLY Continued black iron or steel pipe. Inter- nally-tinned copper tubing may 7. Mark screw locations through one hole WARNING: A qualified service be used in certain areas. Check on each side of the mounting bracket person must connect heater to your local codes. Use pipe of 1/2" (see Figure 12). If installing in a brick- gas supply. Follow all local codes. diameter or greater to allow bottom fireplace, ma
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® FLAME-MAX UNVENTED GAS LOG HEATER Pressure Testing Gas Supply CHECKING GAS INSTALLATION Piping System CONNECTIONS Continued Test Pressures In Excess Of 1/2 PSIG We recommend that you install sediment (3.5 kPa) WARNING: Test all gas pip- trap in supply line as shown in Figure 14. ing and connections for leaks 1. Disconnect appliance with its appliance Locate sediment trap where it is within after installing or servicing. Cor- main gas valve (control valve) and equip- reach for cleaning. Instal
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L L L I I I P P P F F F F F F O O O L L L O O O OWNER’S MANUAL Burner Logs INSTALLING LOGS INSTALLATION Ports Continued WARNING: Failure to position the parts in accordance with these Pressure Testing Heater Gas diagrams or failure to use only Connections parts specifically approved with 1. Open equipment shutoff valve (see Fig- this heater may result in property ure 15, page 12). damage or personal injury. 2. Open main gas valve located on or near gas meter for natural gas or open CAUTION: Af
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O L I P F F O H I L ® FLAME-MAX UNVENTED GAS LOG HEATER LIGHTING OPERATING WARNING: Burner will come INSTRUCTIONS on automatically within one HEATER minute when the selector switch FOR YOUR SAFETY WARNING: is in the ON position after the READ BEFORE • If fireplace has glass doors, pilot is lit. never operate this heater with LIGHTING glass doors closed. If you oper- 4. Press in and turn control knob clock- ate heater with doors closed, wise to the OFF position. WARNING: If you do not fol- h
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OWNER’S MANUAL For wall thermostat operation, follow in- TO TURN OFF GAS OPERATING structions supplied with thermostat ac- TO 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. NOTICE: You must light the pilot seconds after lighting pilot. After 30 2a. Set selector switch in the OFF position. before using the hand-held re- se
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N O T O H L I I L ® FLAME-MAX UNVENTED GAS LOG HEATER IMPORTANT: The hand-held re- OPERATING INSPECTING mote control unit must be near the HEATER heater. Do not keep the hand-held BURNERS remote control unit too close to the Continued Check pilot flame pattern and burner flame heater. The thermostat on the hand- patterns often. IMPORTANT: This remote control held remote control unit will heat up has been specially engineered to too quickly and turn the heater off. PILOT FLAME PATTERN take an air
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OWNER’S MANUAL 6. In case any large clumps of dust have INSPECTING CLEANING AND now been pushed into the burner repeat BURNERS MAINTENANCE steps 3 and 4. Continued Clean the pilot assembly also. A yellow tip WARNING: Turn off heater on the pilot flame indicates dust and dirt in BURNER FLAME PATTERN and let cool before cleaning. the pilot assembly. There is a small pilot air Figure 29 shows a correct burner flame pat- inlet hole about two inches from where the pilot flame comes out of the pilot
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® FLAME-MAX UNVENTED GAS LOG HEATER TROUBLESHOOTING WARNING: Turn off heater CAUTION: Never use a wire, and let cool before servicing. needle, or similar object to clean Note: For additional help, visit DESA Only a qualified service person ODS/pilot. This can damage ODS/ International’s technical service web site should service and repair heater. pilot unit. at www.desatech.com. Note: All troubleshooting items are listed in order of operation. OBSERVED PROBLEM POSSIBLE CAUSE REMEDY When ignit
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OWNER’S MANUAL TROUBLESHOOTING Continued OBSERVED PROBLEM POSSIBLE CAUSE REMEDY Burner does not light after ODS/pilot is lit 1. Burner orifice clogged 1. Clean burner (see Cleaning and Mainte- nance, page 17) or replace burner orifice 2. Inlet gas pressure is too low 2. Contact local natural or propane/LP gas company 3. Burner orifice diameter is too small 3. Replace burner orifice 4. Thermopile leads disconnected or im- 4. Reconnect leads (see Wiring Diagram, properly connected page 21) 5. Burn
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® FLAME-MAX UNVENTED 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. Cleaning supplies, paint, pai
