Instruction/ maintenance manual of the product LMFP33NR(A) Desa
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Sav e this manual for future reference. For more information, visit www .desatech.com W ARNING: 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.
www .desatech.com 1 1 1604-01H 2 W ARNING: 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 .
www .desatech.com 1 1 1604-01H 3 SAFETY INFORMA TION WAR NING : Th is pr odu ct co n- ta ins an d/o r g ene rat es che mic als kno wn to the Stat e of Cali for nia to cau se can cer or birt h defe cts , or oth er rep rod uct ive ha rm.
www .desatech.com 1 1 1604-01H 4 SAFETY INFORMA TION Continued 1. This ap plia nce is only for us e wi th t he type of ga s indi ca ted on the rat in g plat e. This app lian ce is n ot conv erti ble for use wit h ot her gas es. 2. Do not place propane/LP supply tank(s) in - side any structure.
www .desatech.com 1 1 1604-01H 5 LOCAL CODES Install and use fireplace 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/NFP A 54 *. *A vailable from: American National Standards Institute, Inc.
www .desatech.com 1 1 1604-01H 6 PROVIDING ADEQUA TE VENTILA TION The following are excerpts from National Fuel Gas Code, ANSI Z223.1/NFP A 54, Section 5.3, Air for Combustion and V entilation. All spaces in homes fall into one of the three fol - lowing ventilation classifications: 1.
www .desatech.com 1 1 1604-01H 7 Example: Gas water heater __________ Btu/Hr V ent-free fireplace + ________ Btu/Hr T otal = ________ Btu/Hr 4. Compare the maximum Btu/Hr the space can support with the actual amount of Btu/Hr used.
www .desatech.com 1 1 1604-01H 8 INST ALLA TION 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 .
www .desatech.com 1 1 1604-01H 9 MINIMUM CLEARANCE TO COMBUSTIBLE MA TERIALS T op Left and Bottom Right Sides and Rear 42" 16" 0" Figure 5 - Installing Hood to Firebox Figure 6 - Assemb.
www .desatech.com 1 1 1604-01H 10 CONVENTIONAL FIREPLACE INST ALLA TION Conven tional install ation of this fireplace involves installing fireplace along with the corner , face, or cab inet man tel with hear th base acce ssor ies agai nst a wall in your home.
www .desatech.com 1 1 1604-01H 1 1 Figure 12 - Inserting Fireplace Into Cabinet Mantel INST ALLA TION Continued ACTUAL FRAMING Height 32 3 / 8 " 33" Front Width 34 5 / 16 " 35 1 / 8 &qu.
www .desatech.com 1 1 1604-01H 12 Mantel Clearances for Built-In Installation If placi ng mante l above buil t-i n fire pla ce, you must mee t mini mum cle ara nce bet wee n mant el shel f and top of fireplace opening.
www .desatech.com 1 1 1604-01H 13 Figure 18 - Minimum Mantel Clearances for Built-In Installation Supplied Firebox Hood Must Be Used at All Times Wire-mesh Screen Firebox Noncombustible Material May P.
www .desatech.com 1 1 1604-01H 14 For propane/LP units, the installer must supply an external regulator . The external regulator will reduce incoming gas pressure. Y ou must reduce inco ming gas pressu re to betwe en 11 and 14 inche s of water . If you do not reduce incoming gas pres - sure, heater regulator damage could occur .
www .desatech.com 1 1 1604-01H 15 CONNECTING FIREPLACE TO GAS SUPPL Y Installation Items Needed • 5/16" hex socket wrench or nut-driver • Phillips screwdriver • seal ant (re sist ant to prop ane/ LP gas, not pr ovid ed) 1. Remove two screws that hold fireplace screen in place for shipp ing.
www .desatech.com 1 1 1604-01H 16 CHECKING GAS CONNECTIONS W ARNING: T est all gas pip- ing and connections, internal and external tonit, for leaks after installing or servicing. Correct all leaks at once. W ARNING: Never use an open flame to check for a leak.
www .desatech.com 1 1 1604-01H 17 INST ALLA TION Continued Figure 26 - Installing Rear and Middle Logs O F F P I L O T O N Middle Log (#1) Rear Log (#1) O F F P I L O T O N Front Log (#3) Figure 27 - Installing Front Log Pressure T esting Fireplace Gas Connections 1.
www .desatech.com 1 1 1604-01H 18 O F F P I L O T O N Models LMFP33PRA and LMFP33NRA 1. Place the base of the middle log (#1) in the U-shaped slots of the grate base. The cutout on the right of the middle log should fit over the burner (see Figure 29).
www .desatech.com 1 1 1604-01H 19 Figure 33 - Installing Batteries in Receiver Cover Receiver Slot 4 AA Batteries Battery Housing Backup Switch INST ALLING BA TTERIES FOR REMOTE RECEIVER AND HAND HELD REMOTE CONTROL Four AA batteries and three AAA batteries are required to operate this heater with the wireless hand-held remote control set.
www .desatech.com 1 1 1604-01H 20 1. STOP! Read the safety information on page 19. 2 . Make sure equipment shutoff valve is fully open. 3. Set remote selector switch in the AUTO position (see Figure 35). 4. Press in and turn control knob clockwise to the OFF position (see Figure 35).
www .desatech.com 1 1 1604-01H 21 OPERA TING HEA TER Continued Figure 36 - Pilot (Propane/LP) Ignitor Electrode Pilot Burner Figure 37 - Pilot (Natural) Ignitor Electrode Pilot Burner 9. Sl igh tly pus h in and tu rn con trol kn ob co un- terc loc kwis e to the ON position.
www .desatech.com 1 1 1604-01H 22 INSPECTING B URNERS Check pilot flame pattern and burner flame pat- terns often. PILOT FLAME P A TTERN Figure 39 shows a correct pilot flame pattern. Figure 40 shows an incorrect pilot flame pattern. The incorrect pilot flame is not properly heating the thermocouple.
www .desatech.com 1 1 1604-01H 23 BURNER PRIMAR Y 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.
www .desatech.com 1 1 1604-01H 24 Figure 43 - Injector Holder On Outlet Burner Tube Burner T ube Primary Air Inlet Holes (Shape of Holes May V ary by Model) Figure 44 - Pilot Inlet Air Hole Burner T ube 1. Shut off the unit, including the pilot. Allow the unit to cool for at least thirty minutes.
www .desatech.com 1 1 1604-01H 25 POSSIBLE CAUSE 1 . Ignitor electrode not con- nected to ignitor cable 2. Ignitor cable pinched or wet 3. Piezo ignitor nut is loose 4. Broken ignitor cable 5. Bad piezo ignitor 6. Ignitor electrode positioned wrong 7.
www .desatech.com 1 1 1604-01H 26 OBSERVED PROBLEM ODS/pilot lights but flame goes out when control knob is released Burner does not light after ODS/pilot is lit Delayed ignition of one or both burners Burner backfiring during com- bustion Slight smoke or odor during initial operation POSSIBLE CAUSE 1.
www .desatech.com 1 1 1604-01H 27 TROUBLESHOO TING Continued OBS ERVE D P ROB LEM Moisture/con densation noticed on windows Heater produces a whistling noise when burners are lit White powder residue .
www .desatech.com 1 1 1604-01H 28 TROUBLESHOO TING Continued W ARNING: 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.
www .desatech.com 1 1 1604-01H 29 SPECIFICA TIONS LMFP33NR/A LMFP33PR/A Btu (V ariable) 23,000/33,000 23,000/33,000 T ype Gas Natural Gas Propane/LP Ignition Piezo Piezo Pressure Manifold 3.5" W .C. 7.9" W .C. Inlet Gas Pressure (in. of water) Maximum 10.
www .desatech.com 1 1 1604-01H 30 ILL USTRA TED P ARTS BREAKDOWN MODELS LMFP33PR, LMFP33PRA, LMFP33NR AND LMFP33NRA (SHOWN) 17 4 8 12 25 20 21 7 6 4 3 2 5 9 27 14 13 15 16 22 1 1 10 19 23 18 24 28 1b .
www .desatech.com 1 1 1604-01H 31 KEY P ART NUMBER NO. LMFP33PR LMFP33PRA LMFP33NR LMFP33NRA DESCRIPTION QTY . 1a 1 1 1625-03 109072-01 1 1 1625-03 109072-01 Middle Log (#1) 1 1b 1 1 1625-04 109073-01.
www .desatech.com 1 1 1604-01H 32 ILL USTRA TED P ARTS BREAKDOWN FIREBOX LMFP33PR, LMFP33PRA, LMFP33NR AND LMFP33NRA 4 1 1 14 8 14 9 3 14 9 9 2 1 6 7 10 14 12 5 14 13 16 15.
www .desatech.com 1 1 1604-01H 33 P ARTS LIST FIREBOX LMFP33PR, LMFP33PRA, LMFP33NR AND LMFP33NRA This list contains replaceable parts used in your fireplace. When ordering parts, follow the instructions listed under Replacement Parts on page 29 of this manual.
www .desatech.com 1 1 1604-01H 34 ACCESSORIES NOTICE: All accessories may not be available for all fireplace models. Purchase these fireplace accessories from your lo- cal dealer . If they can not supply these accessories, call DESA Heating Productsʼ Sales Department at 1-866-672-6040 for information.
www .desatech.com 1 1 1604-01H 35 ______________________________________________________ ______________________________________________________ ______________________________________________________ _.
2701 Industrial Drive P .O. Box 90004 Bowling Green, KY 42102-9004 www .desatech.com 1 1 1604-01 Rev . H 07/04 NOT A UPC 111604 01 WARRANTY INFORMA TION KEEP THIS WARRANTY Model ______________________________ Serial No.
An important point after buying a device Desa LMFP33NR(A) (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 LMFP33NR(A) 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 LMFP33NR(A) - thus you can check whether the hardware meets your expectations. When delving into next pages of the user manual, Desa LMFP33NR(A) you will learn all the available features of the product, as well as information on its operation. The information that you get Desa LMFP33NR(A) will certainly help you make a decision on the purchase.
If you already are a holder of Desa LMFP33NR(A), 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 LMFP33NR(A).
However, one of the most important roles played by the user manual is to help in solving problems with Desa LMFP33NR(A). Almost always you will find there Troubleshooting, which are the most frequently occurring failures and malfunctions of the device Desa LMFP33NR(A) 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
