Desa FVFM27PR Owner's Operation And Installation Manual
Unvented (vent-free) gas log heater
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UNVENTED (VENT-FREE) GAS LOG HEATER
OWNER'S OPERATION AND INSTALLATION MANUAL
Patent Pending
VYM27NR, VYM27PR, FVFM27NR AND FVFM27PR
Also Design-Certified As A Vented Decorative Appliance
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 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 quali-
fied installer, service agency or the gas supplier.
INSTALLER: Leave this manual with the appliance.
CONSUMER: Retain this manual for future reference.
FLAME-MAX
Multi-Sided Log Design
Remote Control Ready Models
Save this manual for future reference.
For more information, visit www.desatech.com
®
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Table of Contents
Related Manuals for Desa FVFM27PR
Summary of Contents for Desa FVFM27PR
- Page 1 UNVENTED (VENT-FREE) GAS LOG HEATER OWNER’S OPERATION AND INSTALLATION MANUAL Patent Pending VYM27NR, VYM27PR, FVFM27NR AND FVFM27PR Remote Control Ready Models Also Design-Certified As A Vented Decorative Appliance 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.
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Page 2: Table Of Contents
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. -
Page 3: Safety Information
SAFETY INFORMATION WARNING: This product contains and/or generates chemicals known to the State of California to cause cancer or birth defects, or other reproduc- tive harm. IMPORTANT: Read this owner’s manual carefully and completely before trying to assemble, op- erate, or service this heater. Improper use of this heater can cause serious injury or death from burns, fire, explosion,... -
Page 4: Product Identification
SAFETY INFORMATION Continued 1. 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. 2. Do not place propane/LP supply tank(s) in- side any structure. Locate propane/LP supply tank(s) outdoors (propane/LP units only). -
Page 5: Local Codes
LOCAL CODES Install and use heater with care. Follow all local codes. In the absence of local codes, use the lat- est edition of The National Fuel Gas Code, ANSI Z223.1/NFPA 54*. *Available from: American National Standards Institute, Inc. 1430 Broadway New York, NY 10018 National Fire Protection Association, Inc. - Page 6 AIR FOR COMbUSTION AND VENTILATION Continued Exhaust fans, fireplaces, clothes dryers, and fuel burning appliances draw air from the house to operate. You must provide adequate fresh air for these appliances. This will insure proper venting of vented fuel-burning appliances. PROVIDING ADEQUATE VENTILATION The following are excerpts from National Fuel...
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Page 7: Combustion And Ventilation Air
AIR FOR COMbUSTION AND VENTILATION Continued Example: Gas water heater* Vent-free heater Total Compare the maximum Btu/Hr the space can support with the actual amount of Btu/Hr used. __________ Btu/Hr (maximum the space can support) ___________Btu/Hr (actual amount of Btu/Hr used) Example: 51,200 Btu/Hr (maximum the space can support) 73,000 Btu/Hr (actual amount of... -
Page 8: Installation
INSTALLATION NOTICE: This heater is intended for use as supplemental heat. Use this heater along with your primary heating system. Do not install this heater as your pri- mary heat source. If you have a central heating system, you may run system’s circulating blower while using heater. - Page 9 INSTALLATION Continued MINIMUM FIREpLACE CLEARANCE TO COMBUSTIBLE MATERIALS Side Wall 16" LOG SIZING REQUIREMENTS Minimum Firebox Size Height Depth 2" 1" 19" 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 10: Mantel Clearances
INSTALLATION Continued If Using Mantel You must have noncombustible material(s) above the fireplace opening. Noncombustible materials (such as slate, marble, tile, etc.) must be at least 1/2" thick. With sheet metal, you must have non- combustible material behind it. Noncombustible material must extend at least 8"... - Page 11 INSTALLATION Continued B. If combustible materials are less than 14" to the fireplace, you must install appliance at least 5" above the combustible flooring (see Figure 9). Hearth Figure 9 - Minimum Fireplace Clearances Above Combustible Flooring INSTALLING DAMpER CLAMp ACCESSORY FOR VENTED OpERATION Note: When used as a vented heater, appliance...
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Page 12: Connecting To Gas Supply
INSTALLATION Continued IMPORTANT: Make sure the heater burner is level. If heater is not level, heater will not work properly. Installation Items Needed • hardware package (provided with heater) • approved flexible gas hose (not provided) (if allowed by local codes) •... - Page 13 INSTALLATION Continued For propane/LP units, the installer must supply an external regulator. The external regulator will reduce incoming gas pressure. You must reduce incoming gas pressure to between 11" and 14" of water. If you do not reduce incoming gas pres- sure, heater regulator damage could occur.
- Page 14 INSTALLATION Continued CHECKING GAS CONNECTIONS WARNING: Test all gas piping and connections, internal and external to unit, for leaks after installing or servicing. Correct all leaks at once. WARNING: Never use an open flame to check for a leak. Apply a noncorrosive leak detec- tion fluid to all joints.
- Page 15 INSTALLATION Continued pRESSURE TESTING HEATER GAS CONNECTIONS 1. Open equipment shutoff valve (see Figure 15, page 14). 2. Open main gas valve located on or near gas meter for natural gas or open propane/LP supply tank valve. 3. Make sure control knob of heater is in the OFF position.
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Page 16: Operating Heater
INSTALLATION Continued Log Piece (#3) Figure 21 - Installing Log Piece (#3) OPERATING HEATER FOR YOUR SAFETY READ BEFORE LIGHTING WARNING: 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. - Page 17 OPERATING HEATER Continued safety information, column 1 on page 16. If you don’t smell gas, go to the next step. 6. Press in and turn control knob counter- clockwise to the PILOT position. Press in control knob for five (5) seconds (see Figure 22, page 17).
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Page 18: Remote Operation
OPERATING HEATER Continued OpTIONAL HAND-HELD REMOTE OpERATION All remote control accessories must be pur- chased separately (see Accessories, page 25). Follow instructions included with the remote control. NOTICE: You must light the pilot before using the hand-held re- mote control unit. See Lighting Instructions on page 16. -
Page 19: Inspecting Burners
OPERATING HEATER Continued Note: Do not leave the hand-held remote in the AUTO mode close to the fireplace. The radiant heat from the fireplace will turn off the fireplace. Ideally, place the hand-held remote in the center of the room facing towards the fireplace. Note: Do not hold the hand-held remote for a long time. -
Page 20: Cleaning And Maintenance
INSPECTING bURNERS Continued BURNER PRIMARY AIR HOLES Air is drawn into the burner through the holes in the fitting at the burner entrance. These holes may become blocked with dust or lint. Periodically inspect these holes for any blockage and clean if needed. -
Page 21: Wiring Diagram
If so, contact DESA Heating Products’ Technical Service Department at 1-866-672-6040. When calling please have your model and serial numbers of your heater ready. You can also visit DESA Heating Products’ techni- cal services web site at www.desatech.com www.desatech.com... -
Page 22: Troubleshooting
WARNING: Turn off heater and let cool before servicing. 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 order of operation. OBSERVED PROBLEM When ignitor button is pressed, there is no spark at ODS/pilot... - Page 23 OBSERVED PROBLEM ODS/pilot lights but flame goes out when control knob is re- leased Burner does not light after ODS/ pilot is lit Delayed ignition burner Burner backfiring during com- bustion Slight smoke or odor during initial operation 108382-01G TROUbLESHOOTING Continued POSSIBLE CAUSE 1.
- Page 24 OBSERVED PROBLEM Moisture/condensation noticed on windows Heater produces a whistling noise when burner is lit White powder residue forming within burner box or on adjacent walls or furniture Remote does not function Heater produces a clicking/tick- ing noise just after burner is lit or shut off Heater produces unwanted odors...
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Page 25: Accessories
ACCESSORIES Purchase these heater accessories from your local dealer. If they can not supply these accessories, call DESA Heating Products at 1-866-672-6040 for referral information. You can also write to the address listed on the back page of this manual. -
Page 26: Illustrated Parts Breakdown And Parts List
ILLUSTRATED PARTS bREAkDOWN MODELS VYM27NR, VYM27PR, FVFM27NR AND FVFM27PR www.desatech.com NOTE: Part numbers 22 and 23 are for natural gas model only. 108382-01G... -
Page 27: Parts List
100639-01 100693-01 Caution Decal 10113-02 10113-02 Hardware Kit GA6060 **Not a field replaceable part. 108382-01G PARTS LIST VYM27PR FVFM27PR DESCRIpTION 111124-01 Burner Retainer Spring Painted Base Assy Pilot Regulator Pilot Tube (Valve to Regulator) PARTS AVAILABLE — NOT SHOWN GA6060 Lava Rock www.desatech.com... -
Page 28: Warranty Information
This warranty is extended only to the original retail purchaser. This warranty covers the cost of part(s) required to restore this heater to proper operating condition and an allowance for labor when provided by a DESA Heating Products Authorized Service Center. Warranty part(s) MUST be obtained through authorized dealers of this product and/or DESA Heating Products who will provide original factory replacement parts.