Instruction/ maintenance manual of the product GAS LOG HEATER Desa
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UNVENTED (VENT -FREE) NA TURAL GAS LOG HEA TER WARNING: This is an unvented gas-fired heater. It uses air (oxygen) from the room in which it is installed. Provisions for adequate combustion and ventilation air must be provided. Refer to Air for Combustion and Ventilation section on page 4 of this manual.
UNVENTED NA TURAL GAS LOG HEA TER V ANGUARD FLAME-MAX ® 2 104342 1. This appliance is only for use with the type of gas indicated on the rating plate.
OWNER’S MANUAL 3 104342 PRODUCT IDENTIFICA TION Figure 1 - Product Identification Control Knob Back Log Base Assembly Piezo Ignitor Burner Crossover Log Front Log Flame-Max ® Standard Oak Logs Flam.
UNVENTED NA TURAL GAS LOG HEA TER V ANGUARD FLAME-MAX ® 4 104342 PROVIDING ADEQUATE VENTILATION The following are excerpts from National Fuel Gas Code. NFPA 54/ANS Z223.1, Sec- tion 5.3, Air for Combustion and Ventilation. All spaces in homes fall into one of the three following ventilation classifications: 1.
OWNER’S MANUAL 5 104342 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.
UNVENTED NA TURAL GAS LOG HEA TER V ANGUARD FLAME-MAX ® 6 104342 AIR FOR COMBUSTION AND VENTILA TION Continued Figure 3 - Ventilation Air from Outdoors Figure 2 - Ventilation Air from Inside Building.
OWNER’S MANUAL 7 104342 42" 16" NOTICE: Manual control heaters may be used as a vented product. If so, you must always run heater with chimney flue damper open. If running heater with damper open, noncombustible material above fireplace opening is not needed.
UNVENTED NA TURAL GAS LOG HEA TER V ANGUARD FLAME-MAX ® 8 104342 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. You must have noncombustible material(s) above the fireplace opening.
OWNER’S MANUAL 9 104342 INST ALLA TION Continued Figure 6 - Minimum Mantel Clearances Without Using Hood Minimum Non- Combustible Material Minimum Non- Combustible Material Height Distances to Under.
UNVENTED NA TURAL GAS LOG HEA TER V ANGUARD FLAME-MAX ® 10 104342 Area of Various Standard Round Flues Diameter (ins.) Area (sq. ins.) 5" 20 sq. inches 6" 29 sq. inches 7" 39 sq. inches 8" 51 sq. inches INSTALLING HEATER BASE ASSEMBLY WARNING: You must secure this heater to fireplace floor.
OWNER’S MANUAL 11 104342 INST ALLA TION Continued Figure 11 - Attaching Flexible Gas Hose to Heater Gas Regulator Figure 12 - Attaching Base Assembly to Fireplace Floor Masonry Screw Bracket with Sc.
UNVENTED NA TURAL GAS LOG HEA TER V ANGUARD FLAME-MAX ® 12 104342 Tee Joint Pipe Nipple Cap 3" Minimum Sediment Trap Gas Regulator From Gas Meter (5" W.
OWNER’S MANUAL 13 104342 Test Pressures Equal To or Less Than 1/2 PSIG 1. Close manual shutoff v alve (see Fig- ure 14). 2. Pressurize supply piping system by ei- ther using compressed air or opening main gas valve located on or near gas meter . 3 .
UNVENTED NA TURAL GAS LOG HEA TER V ANGUARD FLAME-MAX ® 14 104342 For Golden Oak or Birch Models It is very important to install the logs exactly as instructed. Do not modify logs. Only use logs supplied with heater. 1. Place one-piece log set on grate to fit as illustrated in Figure 19.
OWNER’S MANUAL 15 104342 PILOT OFF LO HI LIGHTING INSTRUCTIONS 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.
UNVENTED NA TURAL GAS LOG HEA TER V ANGUARD FLAME-MAX ® 16 104342 LO HI OFF Pilot TO TURN OFF GAS TO APPLIANCE Shutting Off Heater 1. Press in and turn contr ol knob clock- wise Clockwise to the HIGH position. 2 . T urn the control knob clockwise Clockwise to the PILO T position.
OWNER’S MANUAL 17 104342 INSPECTING BURNERS Check pilot flame pattern and burner flame patterns often. PILOT FLAME PATTERN Figure 25 shows a correct pilot flame pat- tern. Figure 26 shows an incorrect pilot flame pattern. ( Note : Appearance of pilot assembly may vary by model.
UNVENTED NA TURAL GAS LOG HEA TER V ANGUARD FLAME-MAX ® 18 104342 TROUBLESHOOTING WARNING: Turn off and un- plug heater and let cool before servicing. Only a qualified ser- vice person should service and repair heater. CAUTION: Never use a wire, needle, or similar object to clean ODS/pilot.
OWNER’S MANUAL 19 104342 OBSERVED PROBLEM Burner does not light after ODS/pilot is lit Delayed ignition burner Burner backfiring during combustion Slight smoke or odor during initial operation Heate.
UNVENTED NA TURAL GAS LOG HEA TER V ANGUARD FLAME-MAX ® 20 104342 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.
OWNER’S MANUAL 21 104342 OPTIONAL POSITIONING OF THERMOST A T SENSING BULB FOR MASONRY AND FACTORY-BUILT METAL FIREPLACE If your log set cycles to pilot, but the room temperature drops to a lower than ideal comfort level before the log set comes back on, you may want to reposition the thermostat sensing bulb.
UNVENTED NA TURAL GAS LOG HEA TER V ANGUARD FLAME-MAX ® 22 104342 SPECIFICA TIONS Vintage Oak Vintage Oak Golden Oak and Birch 18" Variable 24" Variable 18" Variable Manually Manually .
OWNER’S MANUAL 23 104342 Note: Use only original replacement parts. This will protect your warranty coverage for parts replaced under warranty. PARTS UNDER WARRANTY Contact authorized dealers of this product. If they can’t supply original replacement part(s), call DESA International’s Technical Service Department at 1-800-323-5190.
UNVENTED NA TURAL GAS LOG HEA TER V ANGUARD FLAME-MAX ® 24 104342 ILLUSTRA TED PA R T S BREAKDOWN FLAME-MAX™ VINTAGE OAK LOG MODELS VYS18N AND VYS24N 4 1 2 3 12 21 10 11 21 7 21 5 6 8 9 15 14 16 19.
OWNER’S MANUAL 25 104342 P AR TS LIST VYS18N VYS24N This list contains replaceable parts used in your heater. When ordering parts, follow the instructions listed under Replacement Parts on page 23 of this manual. KEY PART NUMBER FOR NO. VYS18N VYS24N DESCRIPTION QTY.
UNVENTED NA TURAL GAS LOG HEA TER V ANGUARD FLAME-MAX ® 26 104342 ILLUSTRA TED PA R T S BREAKDOWN FLAME-MAX™ GOLDEN OAK AND BIRCH LOG MODELS VYD18N, VYBD18N, VYD24N, VYBD24N, VYD30N, VYBD30N, AND V.
OWNER’S MANUAL 27 104342 P AR TS LIST VYD18N, VYBD18N VYD24N, VYBD24N VYD30N, VYBD30N VYD36N This list contains replaceable parts used in your heater. When ordering parts, follow the instructions listed under Replacement Parts on page 23 of this manual.
UNVENTED NA TURAL GAS LOG HEA TER V ANGUARD FLAME-MAX ® 28 104342 ILLUSTRA TED PA R T S BREAKDOWN THERMOSTATICALLY- CONTROLLED MODELS VYD18NT VYD24NT VYD30NT 12 1 2 18 16 17 20 10 9 5 11 4 7 6 19 8 2.
OWNER’S MANUAL 29 104342 This list contains replaceable parts used in your heater. When ordering parts, follow the instructions listed under Replacement Parts on page 23 of this manual. P AR TS LIST VYD18NT VYD24NT VYD30NT KEY VYD18NT VYD24NT VYD30NT NO.
UNVENTED NA TURAL GAS LOG HEA TER V ANGUARD FLAME-MAX ® 30 104342 TECHNICAL SER VICE You may have further questions about in- stallation, operation, or troubleshooting. If so, contact DESA International’s Techni- cal Service Department at 1-800-DESA LOG (1-800-337-2564).
OWNER’S MANUAL 31 104342 NOTES _______________________________________________________________________________________________ _______________________________________________________________________.
LIMITED WARRANTY VENT-FREE NATURAL GAS LOG HEATERS DESA International warrants this product to be free from defects in materials and components for four (4) years from the date of first purchase, provided that the product has been properly installed, operated and maintained in accordance with all applicable instructions.
An important point after buying a device Desa GAS LOG HEATER (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 GAS LOG HEATER 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 GAS LOG HEATER - thus you can check whether the hardware meets your expectations. When delving into next pages of the user manual, Desa GAS LOG HEATER you will learn all the available features of the product, as well as information on its operation. The information that you get Desa GAS LOG HEATER will certainly help you make a decision on the purchase.
If you already are a holder of Desa GAS LOG HEATER, 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 GAS LOG HEATER.
However, one of the most important roles played by the user manual is to help in solving problems with Desa GAS LOG HEATER. Almost always you will find there Troubleshooting, which are the most frequently occurring failures and malfunctions of the device Desa GAS LOG HEATER 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
