Instruction/ maintenance manual of the product FVFM27NR/PR Desa
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UNVENTED (VENT -FREE) GAS LOG HEA TER Also Design-Cer tified As A V ented Decorative Appliance OWNER’S OPERA TION AND INST ALLA TION MANUAL Patent Pending P I L O T O F F O N L O R E M O T E O F F HI FLAME-MAX ® Multi-Sided Log Design VYM27NR/PR FVFM27NR/PR Remote Control Ready Model Save this manual for future reference.
2 108382 UNVENTED GAS LOG HEA TER FLAME-MAX ® For more information, visit www.desatech.com SAFETY INFORMA TION DANGER: Carbon monoxide poisoning may lead to death! Carbon Monoxide Poisoning: Early signs of carbon monoxide poisoning resemble the flu, with headaches, dizziness, or nausea.
3 108382 OWNER’S MANUAL For more information, visit www.desatech.com PRODUCT IDENTIFICA TION LOCAL CODES Install and use 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.
4 108382 UNVENTED GAS LOG HEA TER FLAME-MAX ® For more information, visit www.desatech.com PROVIDING ADEQUATE VENTILATION The following are excerpts from National Fuel Gas Code, ANSI Z223.1/NFPA 54, Sec- tion 5.3, Air for Combustion and Ventilation. All spaces in homes fall into one of the three following ventilation classifications: 1.
5 108382 OWNER’S MANUAL For more information, visit www.desatech.com 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.
6 108382 UNVENTED GAS LOG HEA TER FLAME-MAX ® For more information, visit www.desatech.com AIR FOR COMBUSTION AND VENTILA TION Continued VENTILATION AIR Ventilation Air From Inside Building This fresh air would come from an adjoining unconfined space.
7 108382 OWNER’S MANUAL For more information, visit www.desatech.com INSTALLATION AND CLEARANCES (Vent-Free Operation Only) WARNING: Maintain the mini- mum clearances. If you can, pro- vide greater clearances from floor, ceiling, and adjoining wall.
8 108382 UNVENTED GAS LOG HEA TER FLAME-MAX ® For more information, visit www.desatech.com INST ALLA TION Continued Minimum Noncombustible Material Clearances If Not Using Mantel Note: If using a mantel, proceed to If Using Mantel . If not using a mantel, follow the information below.
9 108382 OWNER’S MANUAL For more information, visit www.desatech.com INST ALLA TION Continued MANTEL CLEARANCES In addition to meeting noncombustible ma- terial clearances, you must also meet re- quired clearances between fireplace open- ings and mantel shelf on each side of the fireplace.
10 108382 UNVENTED GAS LOG HEA TER FLAME-MAX ® For more information, visit www.desatech.com INST ALLA TION Continued INSTALLING HEATER BASE ASSEMBLY WARNING: If installing in a sunken fireplace, special care is needed. You must raise the fire- place floor to allow access to heater control panel.
11 108382 OWNER’S MANUAL For more information, visit www.desatech.com 7. Mark screw locations through one hole on each side of the mounting bracket (see Figure 12). If installing in a brick- bottom fireplace, mark screw locations in mortar joint of bricks.
12 108382 UNVENTED GAS LOG HEA TER FLAME-MAX ® For more information, visit www.desatech.com WARNING: Test all gas pip- ing and connections for leaks after installing or servicing. Cor- rect all leaks at once. CHECKING GAS CONNECTIONS INST ALLA TION Continued * Purchase the optional CSA design-certified equipment shutoff valve from your dealer.
13 108382 OWNER’S MANUAL For more information, visit www.desatech.com Pressure Testing Heater Gas Connections 1. Open equipment shutoff valve (see Fig- ure 15, page 12). 2. Open main gas valve located on or near gas meter for natural gas or open propane/LP supply tank valve.
14 108382 UNVENTED GAS LOG HEA TER FLAME-MAX ® For more information, visit www.desatech.com OPERA TING HEA TER FOR YOUR SAFETY READ BEFORE LIGHTING WARNING: If you do not fol- low these instructions exactly, a fire or explosion may result caus- ing property damage, personal injury or loss of life.
15 108382 OWNER’S MANUAL For more information, visit www.desatech.com 8. Keep contr ol knob pr essed in for 30 seconds after lighting pilot. After 30 seconds, release contr ol knob . • If contr ol knob does not pop out when released, contact a qualif ied service person or gas supplier f or repairs.
16 108382 UNVENTED GAS LOG HEA TER FLAME-MAX ® For more information, visit www.desatech.com OPERA TING HEA TER Continued Figure 26 - Thermostat Hand-Held Remote Control Unit Selections (GHRCTA only) .
17 108382 OWNER’S MANUAL For more information, visit www.desatech.com 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.
18 108382 UNVENTED GAS LOG HEA TER FLAME-MAX ® For more information, visit www.desatech.com 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.
19 108382 OWNER’S MANUAL For more information, visit www.desatech.com OBSERVED PROBLEM Burner does not light after ODS/pilot is lit Delayed ignition burner Burner backfiring during combustion Slight.
20 108382 UNVENTED GAS LOG HEA TER FLAME-MAX ® For more information, visit www.desatech.com 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.
21 108382 OWNER’S MANUAL For more information, visit www.desatech.com SPECIFICA TIONS Natural Gas Propane/LP Btu (Variable) 20,000/39,000 20,000/39,000 Type Gas Natural Gas Only Propane/LP Only Ignition Piezo Piezo Pressure Manifold 3.5" W.C. 8.
22 108382 UNVENTED GAS LOG HEA TER FLAME-MAX ® For more information, visit www.desatech.com ILLUSTRA TED PA R T S BREAKDOWN VYM27NR FVFM27NR VYM27PR FVFM27PR 5 O F F P I L O T O N H I L O O F F P I L O T O N H I L O 1 9 3 2 13 12 15 14 18 17 12 12 16 21 12 19 6 8 7 4 11 12 20 10 9 23 22 NOTE: Part numbers 22 and 23 are for natural gas model only.
23 108382 OWNER’S MANUAL For more information, visit www.desatech.com P ARTS LIST VYM27NR FVFM27NR VYM27PR FVFM27PR This list contains replaceable parts used in your heater. When ordering parts, follow the instructions listed under Replacement Parts on page 21 of this manual.
24 108382 UNVENTED GAS LOG HEA TER FLAME-MAX ® For more information, visit www.desatech.com ACCESSORIES Purchase these heater accessories from your local dealer. If they can not supply these accessories, call DESA International at 1-800-458-6860 for referral informa- tion.
25 108382 OWNER’S MANUAL For more information, visit www.desatech.com 1. Where will the product be used? ❍ Living/Family Room ❍ Office/W arehouse ❍ Utility Shed/Outbuilding ❍ Garage ❍ Bedroom ❍ Bathroom ❍ Other 2.
26 108382 UNVENTED GAS LOG HEA TER FLAME-MAX ® For more information, visit www.desatech.com 2701 Industrial Drive P.O. Box 90004 Bowling Green, KY 42102-9004 Postage Required TM.
27 108382 OWNER’S MANUAL For more information, visit www.desatech.com NOTES _______________________________________________________________________________________________ __________________________.
KEEP THIS WARRANTY W ARRANTY INFORMA TION Always specify model and serial numbers when communicating with the factory. We reserve the right to amend these specifications at any time without notice. The only warranty applicable is our standard written warranty.
An important point after buying a device Desa FVFM27NR/PR (or even before the purchase) is to read its user manual. We should do this for several simple reasons:
If you have not bought Desa FVFM27NR/PR yet, this is a good time to familiarize yourself with the basic data on the product. First of all view first pages of the manual, you can find above. You should find there the most important technical data Desa FVFM27NR/PR - thus you can check whether the hardware meets your expectations. When delving into next pages of the user manual, Desa FVFM27NR/PR you will learn all the available features of the product, as well as information on its operation. The information that you get Desa FVFM27NR/PR will certainly help you make a decision on the purchase.
If you already are a holder of Desa FVFM27NR/PR, but have not read the manual yet, you should do it for the reasons described above. You will learn then if you properly used the available features, and whether you have not made any mistakes, which can shorten the lifetime Desa FVFM27NR/PR.
However, one of the most important roles played by the user manual is to help in solving problems with Desa FVFM27NR/PR. Almost always you will find there Troubleshooting, which are the most frequently occurring failures and malfunctions of the device Desa FVFM27NR/PR along with tips on how to solve them. Even if you fail to solve the problem, the manual will show you a further procedure – contact to the customer service center or the nearest service center
