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UNVENTED (VENT-FREE) GAS FIREPLACE
OWNER'S OPERATION AND INSTALLATION MANUAL
Patent Pending
LMFP33NR(B) AND LMFP33PR(B) REMOTE CONTROL
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.
For more information, visit www.desatech.com
GAS FIREPLACE SySTEMS
Shown with optional
cabinet mantel and hearth
base accessories.
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Table of Contents
Related Manuals for Desa LMFP33NR(B)
Summary of Contents for Desa LMFP33NR(B)
- Page 1 UNVENTED (VENT-FREE) GAS FIREPLACE OWNER’S OPERATION AND INSTALLATION MANUAL Patent Pending LMFP33NR(B) AND LMFP33PR(B) REMOTE CONTROL GAS FIREPLACE SySTEMS 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
Safety Information ... 2 Product identification ... 4 Local Codes... 4 Unpacking... 5 Product Features ... 5 Air for Combustion and Ventilation ... 5 Installation ... 8 Operating Heater ... 19 Inspecting Burners... 22 Cleaning and Maintenance ... 23 WARNING: Improper in- stallation, adjustment, al- teration, service or main- tenance can cause in-... - Page 3 SAFETy INFORMATION Continued DANGER: Carbon monoxide poisoning may lead to death! Carbon Monoxide Poisoning: monoxide poisoning resemble the flu, with head- aches, dizziness or nausea. If you have these signs, the heater may not be working properly. Get fresh air at once! Have heater serviced. Some people are more affected by carbon monoxide than others. These include pregnant women, people with heart or lung disease or anemia, those under the influence of alcohol and those at high altitudes. Natural and Propane/LP Gas: pane/LP gases are odorless. An odor-making agent is added to the gas. The odor helps you detect a gas leak. However, the odor added to the gas can fade.
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Page 4: Product Identification
SAFETy INFORMATION Continued 6. Do not add extra logs or ornaments such as pine cones, vermiculite or rock wool. Using these added items can cause sooting. Do not add lava rock around base. Rock and debris could fall into the control area of fireplace. 7. To prevent the creation of soot, follow the instruc- tions in Cleaning and Maintenance, page 24. 8. Before using furniture polish, wax, carpet cleaner or similar products, turn heater off. If heated, the vapors from these products may create a white powder residue within burner box or on adjacent walls or furniture. 9. This fireplace needs fresh air ventilation to run properly. -
Page 5: Unpacking
LOCAL CODES Continued State of Massachusetts: The installation must be made by a licensed plumber or gas fitter in the Commonwealth of Mas- sachusetts. Sellers of unvented propane or natural gas-fired supplemental room heaters shall provide to each purchaser a copy of 527 CMR 30 upon sale of the unit. - Page 6 AIR FOR COMBUSTION AND VENTILATION Continued pROvIDING ADEQUATE vENTILATION The following are excerpts from National Fuel Gas Code, ANSI Z223.1/NFPA 54, Section 5.3, Air for Combustion and Ventilation. All spaces in homes fall into one of the three fol- lowing ventilation classifications: 1. Unusually Tight Construction 2. Unconfined Space 3. Confined Space The information on pages 5 through 7 will help you classify your space and provide adequate ventilation.
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Page 7: Ventilation Air From Inside Building
AIR FOR COMBUSTION AND VENTILATION Continued Example: Gas water heater Vent-free fireplace Total 4. 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 Btu/Hr used) The space in the example is a confined space because the actual Btu/Hr used is more than the maximum Btu/Hr the space can support. You must provide ad- ditional fresh air. Your options are as follows:... -
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: Installing Hood
INSTALLATION Continued INSTALLING HOOD Install hood to top of firebox as shown in Figure 5. Use 3 Phillips screws provided Figure 5 - Installing Hood to Firebox ASSEMBLING AND ATTACHING OpTIONAL TRIM) IMPORTANT: If you are recessing the firebox in a wall, do not attach trim at this time. See page 11. -
Page 10: Conventional Fireplace Installation
INSTALLATION Continued CONvENTIONAL FIREpLACE INSTALLATION Conventional installation of this fireplace involves installing fireplace along with the corner, face or cabinet mantel with hearth base accessories against a wall in your home. Follow the instructions below to install the fireplace in this manner. Note: The instructions in this section show instal- lation using the cabinet mantel and hearth base accessories. The hearth base accessory shown is optional for this installation. You can install fire- place and cabinet mantel directly on the floor. - Page 11 INSTALLATION Continued BUILT-IN FIREpLACE INSTALLATION Built-in installation of this fireplace involves installing fireplace into a framed-in enclosure. This makes the front of fireplace flush with wall. If installing a mantel above the fireplace, you must follow the clearances shown in Figure 18, page 13. Follow the instructions below to install the fireplace in this manner.
- Page 12 INSTALLATION Continued 13. Attach fireplace to wall studs using nails or wood screws through holes in nailing flange (see Figure 16). 14. Check all gas connections for leaks. See Checking Gas Connections, page 16. 15. Install trim after final finishing and/or painting of wall (see Figure 7, page 9). Support Bracket Screw Power Cord...
- Page 13 Wall board or facing material (above firebox) may be of combustible material, including decorative mantel ornaments or other similar projec- tions off of the facing material. Firebox Figure 17 - Minimum Mantel Clearances for Built-In Installation INSTALLING GAS pIpING TO FIREpLACE LOCATION WARNING: This appliance requires a 1/2"...
- Page 14 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. Install external regulator with the vent pointing down as shown in Figure 18. Pointing the vent down protects it from freezing rain or sleet. CAUTION: Use only new, black iron or steel pipe.
- Page 15 INSTALLATION Continued CONNECTING FIREpLACE TO GAS SUppLY Installation Items Needed • 5/16" hex socket wrench or nut-driver • Phillips screwdriver • sealant (resistant to propane/LP gas, not pro- vided) 1. Remove two screws that hold fireplace screen in place for shipping. These screws are located near top of screen. Discard screws. Lift fire- place screen up and pull out to remove. 2. Open lower louver door. Carefully pull straight out on the wire harnesses attached to right side and front of remote receiver module (see Figure 20).
- Page 16 INSTALLATION Continued CHECKING GAS CONNECTIONS WARNING: Test all gas pip- ing and connections, internal and external to unit, for leaks after installing or servicing. Cor- rect 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 17 INSTALLATION Continued Pressure Testing Fireplace Gas Connections 1. Open equipment shutoff valve (see Figure 22, page 16). 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 fireplace is in the OFF position.
- Page 18 INSTALLATION Continued 4. Place crossover log (#4) onto the pin (right) on back log (#2) and into the recess of the middle log (#1) (see Figure 28). WARNING: You must operate this fireplace with the fireplace screen in place. Make sure fire- place screen is in place before running fireplace. Notches Grate Finger Figure 27 - Installing Front Log (#3) (Base may very from illustration) Figure 28 - Installing Crossover Log (#4) (Base may very from illustration) INSTALLING BATTERIES FOR...
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Page 19: Operating Heater
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. A. This appliance has a pilot which must be lighted by hand. -
Page 20: Manual Lighting
OPERATING HEATER Continued 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 31). 4. Press in and turn control knob clockwise to the OFF position (see Figure 31). -
Page 21: Remote Operation
OPERATING HEATER Continued HAND-HELD REMOTE OpERATION NOTICE: You must light the pilot before using the hand-held re- mote control unit. See Lighting Instructions, page 19. When the appliance and the remote control are switched off, the house icon with the room temperature will be displayed. -
Page 22: Inspecting Burners
INSPECTING BURNERS Check pilot flame pattern and burner flame pat- terns often. pILOT FLAME pATTERN Figure 35 shows a correct pilot flame pattern. Figure 36 shows an incorrect pilot flame pattern. The incorrect pilot flame is not properly heating the thermocouple. When the thermocouple cools, the heater will shut down. If pilot flame pattern is incorrect, as shown in Figure 36 • turn heater off (see To Turn Off Gas to Appli-... -
Page 23: Cleaning And Maintenance
CLEANING AND MAINTENANCE WARNING: Turn off fireplace and let cool before cleaning. CAUTION: You must keep control areas, burner and cir- culating air passageways of fireplace clean. Inspect these areas of fireplace before each use. Have fireplace inspected yearly by a qualified service person. -
Page 24: 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 When ignitor button is pressed, there is spark at ODS/pilot but... - Page 25 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 of one or both burners Burner backfiring during com- bustion 119526-01A TROUBLESHOOTING Continued pOSSIBLE CAUSE 1. Control knob not fully pressed in 2. Control knob not pressed in long enough 3.
- Page 26 OBSERvED pROBLEM Slight smoke or odor during initial operation Moisture/condensation noticed on windows Heater produces a whistling noise when burners are lit White powder residue forming within burner box or on adjacent walls or furniture Remote does not function Fireplace produces a clicking/ ticking noise just after burner is lit or shut off TROUBLESHOOTING Continued pOSSIBLE CAUSE 1. Not enough air 2. Gas regulator defective 3. Residues from manufacturing processes and logs curing 1. Not enough combustion/ven- tilation air 1. Turning control knob to HI po- sition when burners are cold 2. Air in gas line 3. Air passageways on heater blocked 4. Dirty or partially clogged...
- Page 27 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. Fol- low the gas supplier’s instructions.
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Page 28: Specifications
Usually, we will ask you to return the part to the factory. pARTS NOT UNDER WARRANTY Contact authorized dealers of this product. If they can’t supply original replacement part(s), call DESA Heating Products at 1-866-672-6040 for referral information. When calling DESA Heating Products, have ready • model number of your fireplace • the replacement part number www.desatech.com... -
Page 29: Accessories
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 Products’ Sales Department at 1-866-672-6040 for information. You can also write to the address listed on the back page of this manual. EQUIpMENT SHUTOFF vALvE GA5010 For all models. Equipment shutoff valve with 1/8"... -
Page 30: Illustrated Parts Breakdown And Parts List
ILLUSTRATED PARTS BREAkDOWN MODELS LMFP33NRB AND LMFP33PRB www.desatech.com 119526-01A... -
Page 31: Parts List
This list contains replaceable parts used in your fireplace. When ordering parts, follow the instructions listed under Replacement Parts on page 28 of this manual. PART NO. 10902-01 10903-01 10904-01 10905-01 1038-01 1039-01 098249-01 09938-09 09938-0 104229-03 111331-13 111124-01 099056-31 099056-26 1022-01 M11084-38 Screw, #8-16 x .38 104236-01CK Painted Base Assembly M12461-26 Screw, #10-32 x .38 M50104-02 Bushing... - Page 32 ILLUSTRATED PARTS BREAkDOWN FIREBOx LMFP33PRB AND LMFP33NRB www.desatech.com 119526-01A...
- Page 33 FIREBOx LMFP33PRB AND LMFP33NRB This list contains replaceable parts used in your fireplace. When ordering parts, follow the instructions listed under Replacement Parts on page 28 of this manual. PART NO. 10135-03 098304-01 104239-01CK Top Front Louver 119521-01BR Firebox Hood 099230-02 101346-01 101514-01 M11084-26 10423-01CK Bottom Louvered Door 1012-02 101386-02 10184-01...
- Page 34 NOTES ______________________________________________________ ______________________________________________________ ______________________________________________________ ______________________________________________________ ______________________________________________________ ______________________________________________________ ______________________________________________________ ______________________________________________________ ______________________________________________________ ______________________________________________________ ______________________________________________________ ______________________________________________________ ______________________________________________________ ______________________________________________________ ______________________________________________________ ______________________________________________________ ______________________________________________________ ______________________________________________________ ______________________________________________________ ______________________________________________________ ______________________________________________________ ______________________________________________________ ______________________________________________________ ______________________________________________________ ______________________________________________________ ______________________________________________________ ______________________________________________________ ______________________________________________________ ______________________________________________________ ______________________________________________________ ______________________________________________________ ______________________________________________________ ______________________________________________________ ______________________________________________________ ______________________________________________________ www.desatech.com 119526-01A...
- Page 35 NOTES ______________________________________________________ ______________________________________________________ ______________________________________________________ ______________________________________________________ ______________________________________________________ ______________________________________________________ ______________________________________________________ ______________________________________________________ ______________________________________________________ ______________________________________________________ ______________________________________________________ ______________________________________________________ ______________________________________________________ ______________________________________________________ ______________________________________________________ ______________________________________________________ ______________________________________________________ ______________________________________________________ ______________________________________________________ ______________________________________________________ ______________________________________________________ ______________________________________________________ ______________________________________________________ ______________________________________________________ ______________________________________________________ ______________________________________________________ ______________________________________________________ ______________________________________________________ ______________________________________________________ ______________________________________________________ ______________________________________________________ ______________________________________________________ ______________________________________________________ ______________________________________________________ ______________________________________________________ 119526-01A www.desatech.com...
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Page 36: Warranty Information
WARRANTIES AND LIMITS THE DURATION OF ANY AND ALL IMPLIED WARRANTIES, INCLUD- ING WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE TO TWO (2) YEARS ON ALL COMPONENTS FROM THE DATE OF FIRST PURCHASE; AND DESA HEATING PRODUCTS’ LIABILITY IS HEREBY LIMITED TO THE PURCHASE PRICE OF THE PRODUCT AND DESA HEATING PRODUCTS SHALL NOT BE LIABLE FOR ANY OTHER DAMAGES WHATSOEVER INCLUDING INDIRECT, INCIDENTAL OR CONSEQUENTIAL DAMAGES.