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Desa LSL3124P User's Manual

1. Air For Combustion and ventilation 5 Service Hints lnstellatlOn eurer prr rto rn ti 8 Technical Service Operating heater 16 Replacement Manually Controlled Models 16 Illustrated Parts Breakdown and Parts List 28 Inspecting 20 Warranty 32 www desatech com 111347 01E SAFETY INFORMATION A WARNING This product con tains and or generates chemicals known to the State of California to cause cancer or birth defects or other reproductive harm IMPORTANT Read this owner s manual carefully and completely before trying to assemble operate or service this heater Improper use of this heater can cause serious injury or death from burns fire explosion electrical shock and carbon monoxide poisoning A WARNING Do not allow fans to blow directly into the fireplace Avoid any drafts that alter burner flame patterns Ceiling fans can create drafts that alter burner flame patterns Altered burner patterns can cause sooting Due to high temperatures the appliance should be located out of traffic and away from furniture and draperies A DANGER Carbon monoxide poisoning may lead to deat
2. Injector WARNING Failure to keep Burner Tube Holder May the primary air opening s of T Be Brass or the burner s clean may result in and property damage ofi Model BURNER INJECTOR HOLDER AND Primary Air Inlet Holes PILOT AIR INLET HOLE Shape of Holes May The primary air inlet holes allow the proper amount Vary by Model of air to mix with the gas This provides a clean burning flame Keep these holes clear of dust dirt lint and pet hair Clean these air inlet holes prior to each heating season Blocked air holes will create soot We recommend that you clean the unit every three months during operation and have heater inspected yearly by a qualified service person We also recommend that you keep the burner Burner Tube tube and pilot assembly clean and free of dust and Assembly dirt To clean these parts we recommend using compressed air no greater than 30 PSI Your local Pilot Air computer store hardware store or home center Inlet Hole may carry compressed air in a can You can use a vacuum cleaner in the blow position If using com pressed air in a can please follow the directions on the can If you don t follow directions on the can you could damage the pilot assembly 1 Remove control cover log and front log Figure 30 Pilot Inlet Air Hole 2 Shut off the unit including the pilot Allow the unit to cool for at least thirty minutes LOGS 3 Inspect burner pilot and primary airinle
3. Gas supply turned off or equip ment shutoff valve closed Control knob not in PILOT position Control knob not pressed in while in PILOT position Air in gas lines when in stalled Depleted gas supply pro pane LP only ODS pilot is clogged Gas regulator setting not correct Turn on gas supply or open equipment shutoff valve Turn control knob to PILOT position Press in control knob while in PILOT position Continue holding down con trol knob Repeat igniting op eration until air is removed Contact local propane LP gas company Clean ODS pilot see Cleaning and Maintenance page 21 or replace ODS pilot assembly Replace gas regulator ODS pilot lights but flame goes 1 out when control knob is re 2 leased Control knob not fully pressed in Control knob not pressed in long enough Safety interlock system has been triggered Equipment shutoff valve not fully open Pilot flame not touching ther mocouple which allows ther mocouple to cool causing pilot flame to go out This problem could be caused by one or both of the following A Low gas pressure B Dirty or partially clogged ODS pilot Thermocouple connection loose at control valve Thermocouple damaged Control valve damaged Press in control knob fully After ODS pilot lights keep con trol knob pressed in 30 seconds Wait one minute for safety i
4. blocked 4 Burner flame holes blocked 1 Properly locate logs see In stalling Logs page 15 2 Eliminate source of drafts around heater 3 Clean out air holes at burner inlet Periodically repeat as needed 4 Remove blockage 111347 01E www desatech com 23 TROUBLESHOOTING building Continued ds 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 Immediately call your gas supplier from a neighbor s phone Fol low the gas supplier s instructions If you cannot reach your gas supplier call the fire department IMPORTANT Operating heater where impurities in air exist may create odors Cleaning supplies paint paint remover cigarette smoke cements and glues new carpet or textiles etc create fumes These fumes may mix with combustion air and create odors These odors will disappear over time OBSERVED PROBLEM POSSIBLE CAUSE REMEDY Heater produces a clicking tick ing noise just after burners are lit or shut off 1 Metal expanding while heating or contracting while cooling 1 This is common with most heat ers If noise is excessive contact qualified service person Heater produces unwanted odors 1 Heater burning vapors from paint hair spray glues clean ers chemicals new carpet etc See IMPORTANT state ment above 2 Low fuel supply pr
5. Left Crossover Log PARTS AVAILABLE NOT SHOWN 100563 01 Warning Plate 101055 02 Lighting Instruction Plate GA6060 Lava Rock 101137 02 Hardware Kit 2 cx NONO RUIN AA Se RR ee ce A a 111347 01E www desatech com 29 ILLUSTRATED PARTS BREAKDOWN THERMOSTATICALLY CONTROLLED MEADOWBROOK OAK LOG MODELS CDL3924NT CDL3924PT 30 www desatech com 111347 01E PARTS LIST THERMOSTATICALLY CONTROLLED MEADOWBROOK OAK LOG This list contains replaceable parts used in your heater When ordering parts follow the instructions listed under Replacement Parts on page 27 of this manual KEY PART NUMBER NO CDL3924NT CDL3924PT DESCRIPTION QTY 102772 01 102772 01 Burner 104285 01 104286 01 ODS Pilot 098249 01 098249 01 ODS Nut 098271 10 098271 10 Ignitor Cable 099387 09 099387 09 Pilot Tube 099056 16 099056 17 Injector 111124 01 111124 01 Burner Retainer Spring 111195 04 MON Outlet Tube Service Kit m 110802 03 Outlet Tube 098867 14 098867 10 Gas Regulator M11084 38 M11084 38 Screw 8 18 x 36 110801 02 110801 02 Inlet Tube M11084 26 M11084 26 Screw 10 16 x 38 108631 01 108631 01 Screw 1 Blunt Tip Phillips 110790 03 110790 03 Rear Burner Bracket 110790 01 110790 01 Left Front Burner Bracket 110790 02 110790 02 Right Front Burner Bracket 099211 01 099211 01 Screw 10 16 x 2 5 101329 20 098522 10 Gas Valve Assembly 098544 01 098544 01 Thermobulb Clip Es ms Painte
6. OF THERMOSTAT SENSING BULB For Masonry and Factory Built Metal Fireplace If your log set cycles to pilot but the room tem perature drops to a lower than ideal comfort level before the log set comes back on you may want to reposition the thermostat sensing bulb The thermostat sensing bulb is located near the gas valve assembly on the mounting bracket This location allows the thermostat to keep the room temperature at an ideal comfort level for most fireplace applications For positioning the thermo stat sensing bulb elsewhere an adhesive backed mounting clip is available see Figure 31 Tools needed 1 4 hex driver or socket 1 Remove logs Locate the gas valve assembly and thermostat sensing bulb see Figure 32 2 With 1 4 hex driver or socket loosen the thermostat screw Carefully slide the thermostat sensing bulb out of the retaining clamp see Figure 33 Note Do not remove the screw Make sure you tighten the screw after removing the thermostat sensing bulb IMPORTANT Do not force or bend the thermostat sensing bulb or capillary 3 The thermostat sensing bulb may be located to the lower right front side of fireplace Determine location of sensing bulb but do not mount sensing bulb until step 5 If you have a masonry fireplace see Figure 34 for location If you have a factory built metal fireplace see Figure 35 for location If your fireplace has glass doors position sensing bulb directly behind door ga
7. gas regulator of heater see Figure 11 IMPORTANT Hold gas regulator with wrench when connecting flexible gas hose 2 Locate two masonry screws in hardware package 3 Place heater base in fireplace 4 Place logs in their proper position on heater base see Installing Logs page 15 5 Center heater base and logs front to back and side to side in fireplace 6 Carefully remove logs without moving heater base 7 Mark screw locations through one hole on each side of the base see Figure 12 If install ing in a brick bottom fireplace mark screw locations in mortar joint of bricks 8 Remove heater base from fireplace Drill holes at marked locations using 3 16 drill bit 10 Attach base assembly to fireplace floor using two masonry screws in hardware package Heater Gas Regulator Flexible Gas Hose if alloved by local codes Figure 11 Attaching Flexible Gas Hose to Heater Gas Regulator Figure 12 Attaching Heater to Fireplace Floor 12 www desatech com 111347 01E INSTALLATION as shown in Figure 13 Pointing the vent down Continued protects it from freezing rain or sleet CONNECTING TO GAS SUPPLY CAUTION Use only new black A WARNING This appliance iron orsteel pipe Internally tinned requires 1 2 NPT National Copper tubing may be used Pipe Thread inlet connectionto Certain areas Check your local the pressure regulator codes Use pipe of 1 2 diameter
8. in a solid fuel burning masonry or UL127 factory built fire place or in a listed ventless firebox enclosure It is de sign certified for these installations in accordance with ANSI Z21 11 2 Exception Do not install this appliance in a factory built fireplace that includes instructions stat ing it has not been tested or should not be used with unvented gas logs WARNING This is an unvented gas fired heater It uses air oxygen from the room in which it is installed Provi sions for adequate combustion and ventilation air must be provided Refer to Air for Combustion and Ventilation section on page 5 of this manual This appliance may be installed in an aftermarket per manently located manufactured mobile home where not prohibited by local codes This appliance is only for use with the type of gas indi cated on the rating plate This appliance is not convert ible for use with other gases Aftermarket Completion of sale not for purpose of resale from the manufacturer TABLE OF CONTENTS Safety Information eee 3 Cleaning and 21 aa 4 Troubleshooting eese 22 Unpacking 2 eite itd ie tertie 4 Optional Positioning of Thermostat Sensing Bulb 25 Product 5 5 cetero bes Product Features ette 5 Accessories
9. in the Vertical Position with the Capillary at the Bottom SPECIFICATIONS Echo Valley Oak Log Btu Variable Type Gas Ignition Manifold Pressure Inlet Gas Pressure in of water Maximum Minimum Shipping Weight For purpose of input adjustment Btu Variable Type Gas Ignition Manifold Pressure Inlet Gas Pressure in of water Variable Manually Controlled 16 000 31 500 Propane LP Natural Piezo 8 0 W C 3 5 W C 14 10 5 11 5 38 lbs Meadowbrook Oak Log Thermostatically Controlled 26 000 39 000 Propane LP Natural Piezo 8 0 W C 3 5 W C Maximum 14 10 5 Minimum iy 5 Shipping Weight 28 165 For purpose of input adjustment 26 www desatech com 111347 01E ACCESSORIES NOTICE All accessories may not be available for all fireplace models 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 EQUIPMENT SHUTOFF VALVE GA5010 For all models Equipment shutoff valve with 1 8 NPT tap Fits 1 2 NPT pipe E d FIREPLACE HOOD Black GA6050 Brass GA6052 Antique Brass GA6053 For all models Helps deflect heat away from mantel or wall above fireplace Fits openings 28 to 48 wide DAMPER CLAMP GA6080 Not Shown For all models Perm
10. kw of the aggregate input rating of all appliances installed in that space and an unconfined space as a space whose volume is not less than 50 cubic feet per 1 000 Btu per hour 4 8 n per kw of the aggregate input rating of all appliances installed in that space Rooms com municating directly with the space in which the appliances are installed through openings not furnished with doors are considered a part of the unconfined space Adjoining rooms are communicating only if there are doorless passageways or ventilation grills between them 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 Space Includes the room in which you will install heater plus any adjoining rooms with doorless passageways or ventilation grills between the rooms 1 Determine the volume of the space length x width x height Length x Width x Height volume of space Example Space size 20 ft length x 16 ft width x 8 ft ceiling height 2560 cu ft volume of space cu ft If additional ventilation to adjoining room is supplied with grills or openings add the volume of these rooms to the total volume of the space 2 Multiply the space volume by 20 to determine the maximum Btu Hr the space can support volume of space x 20 Maxi mum Btu Hr the space can support Example 2560 cu ft volume of
11. listed below supply line as shown in Figures 14 page 14 Locate external regulator supplied by installer sediment trap where it is within reach for clean piping check local codes ing Install in piping system between fuel supply and heater Locate sediment trap where trapped matter is not likely to freeze A sediment trap traps moisture and contaminants This keeps them from going into heater controls If sediment trap is not installed or is installed wrong heater may not run properly sealant resistant to propane LP gas equipment shutoff valve test gauge connection sediment trap tee joint pipe wrench Propane LP A CSA design certified equipment shutoff valve External N 3 Supply Tank with 1 8 NPT tap is an acceptable alternative to Regulator SS test gauge connection Purchase the optional CSA design certified equipment shutoff valve from o your dealer See Accessories page 27 OS For propane LP units the installer must supply an external regulator The external regulator will reduce incoming gas pressure You must reduce Vent incoming gas pressure to between 11 and 14 inches Pointing of water If you do not reduce incoming gas pres A A Down sure heater regulator damage could occur Install Figure 1 3 Edera I Regulator With Vent external regulator with the vent pointing down Pointing Down 111347 01E www desatech com 13 INSTALLATION C
12. 104286 01 102568 08 098354 01 098276 01 098508 01 098462 03 098325 01 110801 01 110802 06 098867 10 099387 08 099056 31 110790 01 110790 02 110793 01 110817 01 110791 01 110902 01 102445 01 102334 01 098271 10 111124 01 M11084 26 M11084 38 098249 01 111501 01 111501 02 111501 03 111501 04 111501 05 100563 01 101055 02 GA6060 101137 02 Not a field replaceable part LSL3124N DESCRIPTION WE ASM Low Profile Base Painted 102773 01 Single Burner 24 ODS Pilot Propane LP Gas 104285 01 ODS Pilot Natural Gas Control Valve Propane LP Gas 102568 07 Control Valve Natural Gas 098354 01 Control Knob 098276 01 Plug 1 8 NPT Hex Head 098508 01 Valve Retainer Nut 098462 03 Control Rod 098325 01 Roll Pin 110801 01 Inlet Tube 111195 01 Outlet Tube Gas Regulator Propane LP Gas 098867 14 Gas Regulator Natural Gas 099387 08 Pilot Tube 099056 26 Injector 110790 01 Left Front Burner Bracket 110790 02 Right Front Burner Bracket 110793 01 Piezo Bracket 110817 01 Control Rod Bracket 110791 01 Manual Valve Bracket 110902 01 Log Support Bracket 102445 01 Piezo Ignitor 102334 01 Palnut Fastener 098271 10 Ignitor Cable 111124 01 Burner Retainer Spring M11084 26 Screw HWH AB 10 16 x 38 M11084 38 Screw Hex Head Tpg 8 18 x 38 098249 01 O D S Nut 111501 01 Left Front Log 111501 02 Right Front Log 111501 03 Control Cover Log 111501 04 Back Log 111501 05
13. A6053 Figure 7 Minimum Mantel Clearances When Using Hood NOTICE Surface temperatures of adjacent walls and mantels be come hot during operation Walls and mantels above the firebox may become hot to the touch If installed properly these tem peratures meet the requirement of the national product standard Follow all minimum clearances shown in this manual 10 www desatech com 111347 01E INSTALLATION Continued NOTICE Ifyour installation does not meet the minimum clear ances shown you must do one of the following operate the logs only with the flue damper open raise the mantel to an accept able height remove the mantel FLOOR CLEARANCES A If installing appliance on the floor level you must maintain the minimum distance of 14 to combustibles see Figure 8 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 Combustible 14 Material Min KXAN Noncombustible Material Figure 8 Minimum Fireplace Clearances If Installed at Floor Level Hearth Combustible Material oa M Figure 9 Minimum Fireplace Clearances Above Combustible Flooring INSTALLING DAMPER CLAMP ACCESSORY FOR VENTED OPERATION Note When used as a vented heater appliance must be installed only in a solid fuel bur
14. DESA HEATING PRODUCTS UNVENTED VENT FREE GAS LOG HEATER OWNER S OPERATION AND INSTALLATION MANUAL Echo Valley Oak Log Design Meadowbrook Oak Log Design 24 VARIABLE 24 VARIABLE MANUALLY THERMOSTATICALLY CONTROLLED MODELS CONTROLLED MODELS LSL3124N AND LSL3124P CDL3924NT AND CDL3924PT 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 Save this manual for future reference For more information visit www desatech com 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
15. FROM OUTDOORS Provide extra fresh air by using ventilation grills or ducts You must provide two permanent openings one within 12 of the ceiling and one within 12 of the floor Connect these items directly to the outdoors or spaces open to the outdoors These spaces include attics and crawl spaces Follow the National Fuel Gas Code ANSI Z223 1 NFPA 54 Section 5 3 Air for Combustion and Ventilation for required size of ventilation grills or ducts IMPORTANT Do not provide openings for inlet or outlet air into attic if attic has a thermostat controlled power vent Heated air entering the attic will activate the power vent Ventilated Attic L Outlet Air To Attic To pace Inlet E Air A Ventilated Inlet Air Crawl Space Figure 3 Ventilation Air from Outdoors 111347 01E www desatech com T 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 This will help circulate the heat throughout house In the event of a power outage you can use this heater as your primary heat source WARNING Aqualified service person must install heater Fol low all local codes NOTICE State or lo
16. OF THE PRODUCT AND DESA HEATING PRODUCTS SHALL NOT BE LIABLE FOR ANY OTHER DAMAGES WHATSOEVER INCLUDING INDIRECT INCIDENTAL OR CONSEQUENTIAL DAMAGES Some states do not allow a limitation on how long an implied warranty lasts or an exclusion or limitation of incidental or consequential damages so the above limitation on implied warranties or exclusion or limitation on damages may not apply to you This warranty gives you specific legal rights and you may also have other rights that vary from state to state For information about this warranty ESA HEATING PRODUCTS 2701 Industrial Drive P O Box 90004 Bowling Green KY 42102 9004 www desatech com Rev E 111347 01 09 04 NOT A UPC
17. SEMBLY WARNING You must secure this heater to fireplace floor If not heater will move when you adjust controls Moving heater may cause a gas leak or log misplacement A WARNING If installing in a sunken fireplace special care is needed You must raise the fireplace floor to allow access to heater control panel This will insure adequate air flow and guard against sooting and controls being damaged Raise fireplace floor with noncombus tible material Make sure material is secure A CAUTION Do not pick up heater base assembly by burn ers This could damage heater Only handle base assembly by grates IMPORTANT Make sure the heater burners are level If heater is not level heater will not work properly For thermostat models avoid damage to thermostat bulb Avoid nicks or sharp bends in thermostat bulb wire Keep thermostat bulb in mounting bracket until ready to mount base to floor See Optional Positioning Of Thermostat Sensing Bulb page 25 Installation Items Needed hardware package provided with heater approved flexible gas hose and fittings not provided if allowed by local codes sealant resistant to propane LP gas not provided electric drill with 3 16 drill bit metal ma sonry as applicable flathead screwdriver pipe wrench 1 Apply pipe joint sealant lightly to male threads of gas fitting not provided Connect approved flexible gas hose to
18. 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 Failure to use original factory replacement parts voids this warranty The heater MUST be installed by a qualified installer in accordance with all local codes and instructions furnished with the unit This warranty does not apply to parts that are not in original condition because of normal wear and tear or parts that fail or become damaged as a result of misuse accidents lack of proper maintenance or defects caused by improper installation Travel diagnostic cost labor transportation and any and all such other costs related to repairing a defective heater will be the responsibility of the owner TO THE FULL EXTENT ALLOWED BY THE LAW OF THE JURISDICTION THAT GOVERNS THE SALE OF THE PRODUCT THIS EXPRESS WARRANTY EXCLUDES ANY AND ALL OTHER EXPRESSED 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
19. ad just heating levels by using the equipment shutoff valve Ignitor Button Control Knob Figure 25 Control Knob and Ignitor Button Location Ignitor Electrode Thermocouple _ AY Pilot Burner Figure 26 Pilot 111347 01E www desatech com 19 OPERATING HEATER Continued NN TO TURN OFF GAS TO APPLIANCE Shutting Off Heater Turn control knob clockwise 7 to the OFF position Shutting Off Burners Only pilot stays lit Turn control knob clockwise X to the PILOT position B THERMOSTAT CONTROL OPERATION The thermostat control knob can be set to any comfort level between HI and LO The ther mostat will gradually modulate the heat output and flame height from higher to lower settings or pilot in order to maintain the comfort level you select The ideal comfort setting will vary by household depending upon the amount of space to be heated the output of the central heating system etc Note Selecting the HI setting with the control knob will cause the burners to remain fully on without modulating down in most cases MANUAL LIGHTING PROCEDURE 1 Follow steps 1 through 5 under Lighting Instructions page 19 2 Depress control knob and light pilot with match 3 Keep control knob pressed in for 30 seconds after lighting pilot After 30 seconds release control knob Now follow step 8 under Lighting Instructions page 19 INSPECTING BURNERS Check pilot flame pattern an
20. al Figure 5 Heat Resistant Material Slate Marble Tile etc Above Fireplace MANTEL CLEARANCES In addition to meeting noncombustible material clearances you must also meet required clearances between fireplace opening and mantel shelf If you do not meet the clearances listed below you will need a hood Determining Minimum Mantel Clearance If you meet minimum clearance between mantel shelf and top of fireplace opening a hood is not required see Figure 6 Determining Minimum Mantel Clearance When Using a Hood If minimum clearances in Figure 6 are not met you must have a hood When using a hood there are still certain minimum mantel clearances required Follow minimum clearances shown in Figure 7 when using hood 10 Mantel Shelf Underside of 8 Mantel Shelf e A 2p All minimum distances are in inches Minimum Leader il A Se Aae 2430 36 e 12 18 20 22 24 Models 8 8 tar 17 20 18 Model Y Y Top of WAS EY Fireplace Minimum Non Distances to Opening Combustible Underside of A Material Height Mantel Figure 6 Minimum Mantel Clearances Without Using Hood Mantel Shelf Underside A Of Mantel Shelf m All minimum distances are Minimum in inches Noncombustible Material errar fis H8 20 Min DN Fireplace Oponi Hood Distances to ae GA6050 Underside of GA6052 or Mantel G
21. anently opens chimney flue damper for vented operation LAVA ROCK GA6060 Not Shown For all models Order when additional rock is desired 1 8 Ib bag CLEANING KIT GCK Not Shown For all models Your vent free gas appliance re quires regular cleaning and maintenance to prevent performance problems This kit gives you the tools and instructions to make it easy to clean all critical areas of your appliance INFORMATION VIDEO 108917 01 For all models A care and maintenance video is available by calling 1 866 672 6040 You may also email your request to productsupport desaint com SERVICE HINTS When Gas Pressure Is Too Low pilot will not stay lit burners will have delayed ignition heater will not produce specified heat for propane LP units propane LP gas supply may be low You may feel your gas pressure is too low If so con tact your local propane LP or natural gas supplier TECHNICAL SERVICE You may have further questions about installation operation or troubleshooting 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 REPLACEMENT PARTS Note Use only original replacement parts This will protect your warranty coverage for parts replaced under warranty PARTS UNDER WARRANTY Co
22. any gas control which has been under water www desatech com 111347 01E OPERATING HEATER Continued LIGHTING INSTRUCTIONS A WARNING If fireplace has glass doors never operate this heater with glass doors closed If you op erate heater with doors closed heat buildup inside fireplace will cause glass to burst Make sure there are no obstructions across opening of fireplace You must operate this heater with a fireplace screen in place Make sure fireplace screen is closed before running heater NOTICE During initial operation of new heater burning logs will give off a paper burning smell Orange flame will also be pres ent Open damper or window to vent smell This will only last a few hours Note Home owners generally prefer to op erate their heater with the chimney damper closed This will put all the heat into the room However there may be times you will desire the full flames of the HI heat setting but will find the heat output excessive You can open the chimney damper if you have one fully or partially to release some of the heat WARNING Damper handle will be hot if heater has been running 1 STOP Read the safety information in column 2 page 18 2 Make sure equipment shutoff valve is fully open 3 Turn control knob clockwise 3 to the OFF position 4 Wait five 5 minutes to clear out any gas Then smell for gas including near the floor
23. arance of pilot assembly may vary by model Figure 24 Pilot 111347 01E www desatech com 17 OPERATING HEATER Continued NN VARIABLE CONTROL OPERATION The variable control valve can be set to any heat setting and flame height desired by simply turning the control knob until that setting is attained Even the lowest setting provides re alistic dancing yellow flames Selecting higher settings produces greater heat output This results in increased heating comfort A WARNING Do not operate heater between PILOT and HI positions A CAUTION Do not try to ad just heating levels by using the equipment shutoff valve 1 MANUAL LIGHTING PROCEDURE Follow steps 1 through 6 under Lighting Instructions page 17 Depress control knob and light pilot with match Keep control knob pressed in for 30 seconds after lighting pilot After 30 seconds release control knob Now follow steps 9 and 10 page 17 THERMOSTAT MODELS B 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 m TO TURN OFF GAS TO APPLIANCE Shutting Off Heater 1 Remove control cover log see Figure 23 page 17 2 Press in and turn control knob clockwise NX to the HI position 3 Turn the control knob clockwise to the PILOT position 4 Press in control knob and turn clockwise to the OFF positi
24. cal codes may only allow operation of this appliance in a vented configura tion Check your state or local codes A WARNING Before installing in a solid fuel burning fireplace the chimney flue and firebox must be cleaned of soot creo sote ashes and loose paint by a qualified chimney cleaner Creosote will ignite if highly heated A dirty chimney flue and firebox may create and distribute soot within the house Inspect chimney flue for damage damaged repair flue before operating heater A WARNING Seal any fresh air vents or ash clean out doors lo cated on floor or wall of fireplace If not drafting may cause pilot outage or sooting Use a heat resistant sealant Do not seal chimney flue damper 8 www desatech com A WARNING Never install the heater in a bedroom or bathroom unless installed as a vented appliance see page 11 in a recreational vehicle where curtains furniture clothing or other flammable objects are less than 42 inches from the front top or sides of the heater in high traffic areas in windy or drafty areas A CAUTION This heater cre ates warm air currents These currents move heat to wall sur faces next to heater Installing heater next to vinyl or cloth wall coverings or operating heater where impurities such as but not limited to tobacco smoke aromatic candles cleaning flu ids oil or kerosene lamps etc in the air exist may discolor walls
25. d clean burner see Cleaning and Mainte nance page 21 Replace gas control Problem will stop after a few hours of operation Q2 N Heater produces a whistling noise when burners are lit 1 Turning control knob to HI position when burners are cold 2 Air in gas line 3 Air passageways on heater blocked 4 Dirty or partially clogged burner orifice s 1 Turn control knob to LO position and let warm up for a minute 2 Operate burners until air is removed from line Have gas line checked by local natural or propane LP gas company 3 Observe minimum installation clearances see page 9 4 Clean burners see Cleaning and Maintenance page 21 or replace burner orifice White powder residue forming within burner box or on adjacent walls or furniture 1 When heated vapors from furniture polish wax carpet cleaners etc may turn into white powder residue 1 Turn heater off when using furniture polish wax carpet cleaners or similar products Moisture condensation noticed on windows 1 Not enough combustion ven tilation air 1 Refer to Air for Combustion and Ventilation requirements page 5 Dark residue on logs inside of their fireplace Note Afterremov ing all causes of residue deposits completely clean fireplace and appliance offresidue before reus ing appliance 1 Improper log placement 2 Drafts or other air currents affecting flame pattern 3 Air holes at burner inlet
26. d Base 110793 01 110793 01 Piezo Bracket 102445 01 102445 01 Piezo Ignitor Service Kit 111125 01 111125 01 T Stat Heat Shield 111144 01 111144 01 Front Log 111144 02 111144 02 Control Cover Log 111144 03 111144 03 Rear and Middle Log 111144 04 111144 04 Crossover Log PARTS AVAILABLE NOT SHOWN 100563 01 100563 01 Warning Plate 101054 01 101054 01 Lighting Instructions Plate 100639 02 100639 02 Caution Decal 101137 02 101137 02 Hardware Kit GA6060 GA6060 Lava Rock Ma x 2n coc lt lt Not a field replaceable part 111347 01E www desatech com 31 WARRANTY INFORMATION KEEP THIS WARRANTY Model Serial No Date Purchased 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 We make no other warranty expressed or implied LIMITED WARRANTY VENT FREE GAS LOG HEATERS DESA Heating Products warrants this product to be free from defects in materials and components for two 2 years from the date of first purchase provided that the product has been properly installed operated and maintained in accordance with all applicable instructions To make a claim under this warranty the Bill of Sale or cancelled check must be presented
27. d burner flame pat terns often PILOT FLAME PATTERN Figure 27 shows a correct pilot flame pattern Figure 28 shows an incorrect pilot flame pattern The incor rect pilot flame is not touching the thermocouple This will cause the thermocouple to cool When the thermocouple cools the heater will shut down If pilot flame pattern is incorrect as shown in Figure 28 turn heater off see To Turn Off Gas to Appliance page 18 Manually Controlled Models or page 20 Thermostatically Controlled Models see Troubleshooting page 22 Note The pilot flame on natural gas units will have a slight curve but flame should be blue and have no yellow or orange color Pilot Burner Thermocouple Figure 27 Correct Pilot Flame Pattern Your pilot may vary from pilots shown Pilot Burner Thermocouple Figure 28 Incorrect Pilot Flame Pattern Your pilot may vary from pilots shown 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 Blocked air holes will create soot MAIN BURNER Periodically inspect all burner flame holes with the heater running All slotted burner flame holes should be open with yellow flame present All round burner flame holes should be open with a small blue flame present Some burner flame holes may become block
28. e 16 If you don t smell gas go to the next step 6 Slightly depress and turn control knob counterclockwise to the PILOT position Keep control knob pressed in for five 5 seconds see Figure 23 Note You may be running this heater for the first time after hooking up to gas sup ply If so the control knob may need to be pressed in for 30 seconds or more This will allow air to bleed from the gas system With control knob pressed in press and release ignitor button This will light pilot The pilot is attached to the burner If needed keep pressing ignitor button until pilot lights Note If pilot does not light contact a qualified service person or gas supplier for repairs Until repairs are made light pilot with match To light pilot with match see Manual Lighting Procedure page 18 Keep control knob pressed in for 30 seconds after lighting pilot After 30 seconds release control knob If control knob does not pop out when released contact a qualified service person or gas supplier for repairs Note If pilot goes out repeat steps 3 through 7 Slightly depress and turn control knob counterclockwise to the HI position The burner should light Set control knob to any heat level between HI and LO 10 Replace control cover log see Figure 23 Control Control Knob Ignitor Button Figure 23 Control Knob and Ignitor Button Location Actual Logs May Vary Note Appe
29. ed by debris or rust with no flame present If so turn off heater and let cool Remove blockage Blocked burner flame holes will create soot 20 www desatech com 111347 01E CLEANING AND 4 Blow air through the ports slots and holes in MAINTENANCE 5 Check the injector holder located at the end A WARNING Turn off heater of the burner tube again Remove any large particles of dust dirt lint or pet hair with a and let cool before cleaning soft cloth or vacuum cleaner nozzle 6 Blow air into the primary air holes on the A CAUTION You must keep injector holder control areas burners and 7 Incase any large clumps of dust have now been circulating air passageways pushed into the burner repeat steps 3 and 4 of heater clean Inspect these 8 Se je cover log see nstalling Logs e 15 areas of heater before each use s Have heater inspected Clean the pilot assembly also A yellow tip on the p y y pilot flame indicates dust and dirt in the pilot as by a qualified service person sembly There is a small pilot air inlet hole about Heater may need more frequent iwo inches from where the pilot flame comes out cleaning due to excessive lint ofthepilotassembly see Figure 30 With the unit from carpeting pethair bedding off lightly blow air through the air inlet hole You material etc may blow through a drinking straw if compressed etc air is not available
30. gulator 2 Cap off open end of gas pipe where equipment shutoff valve was connected 3 Pressurize supply piping system by either opening propane LP supply tank valve for propane LP gas or opening main gas valve located on or near gas meter for natural gas or using compressed air 4 Check all joints of gas supply piping system Apply noncorrosive leak detection fluid to all joints Bubbles forming show a leak 5 Correct all leaks at once 6 Reconnect heater and equipment shutoff valve to gas supply Check reconnected fit tings for leaks Test Pressures Equal To or Less Than 1 2 PSIG 3 5 kPa 1 Close equipment shutoff valve see Figure 15 2 Pressurize supply piping system by either opening propane LP supply tank valve for propane LP gas or opening main gas valve located on or near gas meter for natural gas or using compressed air 3 Check all joints from gas meter to equipment shutoff valve for natural gas or propane LP sup ply to equipment shutoff valve for propane LP see Figures 16 and 17 page 15 Apply noncor rosive leak detection fluid to all joints Bubbles forming show a leak 4 Correct all leaks at once Equipment Open Shutoff Valve NY A Closed Figure 15 Equipment Shutoff Valve 14 www desatech com 111347 01E INSTALLATION Continued PRESSURE TESTING HEATER GAS CONNECTIONS 1 Figure 17 Checking Gas Joints Natural Open equipment shutoff valve see Fi
31. gure 15 page 14 Open main gas valve located on or near gas meter for natural gas or open propane LP supply tank valve Make sure control knob of heater is in the OFF position Check all joints from equipment shutoff valve to control valve see Figures 16 and 17 Apply noncorrosive leak detection fluid to all joints Bubbles forming show a leak Correct all leaks at once Light heater see Operating Heater page 16 depending on your model Check all other internal joints for leaks Turn off heater see To Turn Off Gas to Ap pliance page 18 or 20 depending on your model Equipment Gas Control Shutoff Valve Valve Location Propane LP Supply Tank Figure 16 Checking Gas Joints Propane LP only Gas Control Valve Location Equipment Shutoff Valve NS Gas Meter Gas Only INSTALLING LOGS A WARNING Failure to position the parts in accordance with these diagrams or failure to use only parts specifically approved with this heater may result in property damage or personal injury A CAUTION After installation and periodically thereafter check to ensure that no flame comes in contact with any log With the heater set to HI check to see if flames contact any log If so reposition logs according to the log installation instructions in this manual Flames contact ing logs will create soot It is
32. h Carbon Monoxide Poisoning Early signs of carbon 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 Natural and pro 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 Gas may be present even though no odor exists Make certain you read and understand all warn ings Keep this manual for reference It is your guide to safe and proper operation of this heater A WARNING Any change to this heater or its controls can be dangerous A WARNING Do not use a blower insert heat exchanger insertor other accessory notap proved for use with this heater Do not place clothing or other flammable material on or near the appliance Never place any objects on the heater Heater base assembly becomes very hot when running heater Keep children and adults away from hot surface to avoid burns or clothing ignition Heater will remain hot for a time after shutdown Allow surface to cool before touching You must operate this heater with a fireplace
33. inued LIGHTING INSTRUCTIONS A WARNING If fireplace has glass doors never operate this heater with glass doors closed If you op erate heater with doors closed heat buildup inside fireplace will cause glass to burst Make sure there are no obstructions across opening of fireplace You must operate this heater with a fireplace screen in place Make sure fireplace screen is closed before running heater NOTICE During initial operation of new heater burning logs will give off a paper burning smell Orange flame will also be pres ent Open damper or window to vent smell This will only last a few hours Note Home owners generally prefer to operate their heater with the chimney damper closed This will put all the heat into the room How ever there may be times you will desire the full flames of the HI heat setting but will find the heat output excessive You can open the chim ney damper if you have one fully or partially to release some of the heat A WARNING Damper handle will be hot if heater has been running 1 STOP Read the safety information on page 16 Remove control cover log see Figure 23 Make sure equipment shutoff valve is fully open Press in and turn control knob clockwise ON to the OFF position Wait five 5 minutes to clear out any gas Then smell for gas including near the floor If you smell gas STOP Follow B in the safety information pag
34. l around the 1 Place rear log on 2 pins on rear brackets see appliance area for gas Be sure to smell next Figure 21 to the floor because some gas is heavier than air and will settle on the floor WHAT TO DO IF YOU SMELL GAS e Do not try to light any appliance Donottouch any electric 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 C Use only your hand to push in or turn the gas control knob Never use tools If the knob will not push in or turn by hand don t try to repair it call a qualified service tech nician or gas supplier Force or attempted repair may result in a fire or explosion D Do not use this appliance if any part has been under water Immediately call a qualified service technician to inspect the appliance and Figure 21 Front and Rear Log to replace any part of the control system and Placement Thermostat Models any gas control which has been under water 2 Place front log on grate fingers and over pins of rear log as shown in see Figure 21 3 Place control cover log onto two pins on front log assuring the cover log seats into cutout section of front log see Figure 22 4 Place crossover log on pins on rear and middle log see Figure 22 Rear and Middle Log 16 www desatech com 111347 01E OPERATING HEATER Cont
35. n terlock system to reset Repeat ignition operation Fully open equipment shutoff valve A Contact local natural or propane LP gas company B Clean ODS pilot see Cleaning and Maintenance page 21 or replace ODS pilot assembly Hand tighten until snug then tighten 1 4 turn more Replace pilot assembly Replace control valve 22 www desatech com 111347 01E TROUBLESHOOTING Continued OBSERVED PROBLEM POSSIBLE CAUSE REMEDY Burner does not light after ODS 1 Inlet gas pressure is too low 1 Contact local natural or pro pilot is lit pane LP gas company 2 Burner orifice s clogged 2 Clean burner s see Cleaning and Maintenance page 21 or replace burner orifice s Delayed ignition of one or both burners 1 Manifold pressure is too low 2 Burner orifice s clogged 1 Contact local natural or pro pane LP gas company 2 Clean burner s see Cleaning and Maintenance page 21 or replace burner orifice s Burner backfiring during combustion 1 Burner orifice is clogged or damaged 2 Damaged burner 3 Gas regulator defective 1 Clean burner see Cleaning and Maintenance page 21 or replace burner orifice 2 Replace damaged burner 3 Replace gas regulator Slight smoke or odor during initial operation 1 Not enough air 2 Gas regulator defective 3 Residues from manufacturing processes and logs curing 1 Check burner for dirt and debris If foun
36. ning fireplace with a working flue and constructed of noncombustible material If your heater is a manually controlled model you may use this heater as a vented product There are three rea sons for operating your heater in the vented mode 1 fireplace does not meet the clearance to com bustibles requirements for vent free operation 2 State or local codes do not permit vent free operation 3 You prefer vented operation If reasons number 1 or 2 above apply to you you must permanently open chimney flue damper You must install the damper clamp accessory to order see Accessories page 27 This will insure vented operation see Figure 10 The damper clamp will keep damper open Installation instructions are included with clamp accessory See chart below for minimum permanent flue opening you must provide Attach damper clamp so the minimum permanent flue opening will be maintained at all times Area of Various Standard Round Flues Diameter ins Area sq ins 5 20 sq inches e 29 sq inches 7 39 sq inches 8 51 sq inches Chimney Minimum Permanent Height ft Flue Opening sq ins 6 to 15 39 sq inches 15 to 30 29 sq inches Damper Clamp mm Damper Damper GA O Manufactured Fireplace Masonry Fireplace Figure 10 Attaching Damper Clamp 111347 01E www desatech com 11 INSTALLATION Continued INSTALLING HEATER BASE AS
37. ntact authorized dealers of this product If they can t supply original replacement part s call DESA Heating Products Technical Service Department at 1 866 672 6040 When calling DESA Heating Products have ready your name your address model and serial numbers of your heater how heater was malfunctioning type of gas used propane LP or natural gas purchase date 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 heater the replacement part number 111347 01E www desatech com 27 ILLUSTRATED PARTS BREAKDOWN VARIABLE MANUALLY CONTROLLED ECHO VALLEY OAK LOG MODELS LSL3124N LSL3124P I ch 3 ODS Pilot 3 ODS Pilot Propane LP Natural Gas 28 www desatech com 111347 01E VARIABLE MANUALLY CONTROLLED ECHO VALLEY OAK LOG MODELS PARTS LIST This list contains replaceable parts used in your heater When ordering parts follow the instructions listed under Replacement Parts on page 27 of this manual KEY NO PART NUMBER FOR LSL3124P 102773 01
38. on 5 Replace control cover log see Figure 23 page 17 Shutting Off Burners Only pilot stays lit 1 Remove control cover log see Figure 23 page 17 2 Turn the control knob clockwise to the HI position 3 Press in and turn control knob clockwise N to the PILOT position 4 Replace control cover log see Figure 23 page 17 sonal injury or loss of life A This appliance has pilot which must be lighted by hand When lighting the pilot follow these instructions exactly BEFORE LIGHTING smell all around the appliance area for gas Be sure to smell next to the floor because some gas is heavier than air and will settle on the floor WHAT TO DO IF YOU SMELL GAS Do not try to light any appliance Donot touch any electric 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 e If you cannot reach your gas supplier call the fire department Use only your hand to push in or turn the gas control knob Never use tools If the knob will not push in or turn by hand don t try to repair it call a qualified service tech nician or gas supplier Force or attempted repair may result in a fire or explosion Do not use this appliance if any part has been under water Immediately call a qualified service technician to inspect the appliance and to replace any part of the control system and
39. ontinued A CAUTION Avoid damage to regulator Hold gas regulator with wrench when connecting it to gas piping and or fittings PROPANE LP From External Regulator 11 W C to 14 W C Pressure NATURAL CSA Design Certified CW e Equipment Shutoff Valve 10 5 With 1 8 NPT Tap Pressure Tee Pipe Cap Joint Nipple Approved Flexible Gas Hose if allowed Sediment Trap by local codes Figure 14 Gas Connection Purchase the optional CSA design certified equipment shutoff valve from your dealer See Accessories page 27 Minimum inlet pressure for purpose of input adjustment CHECKING GAS CONNECTIONS WARNING Testall 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 detection fluid to all joints Bubbles form ing show a leak Correct all leaks at once A CAUTION Make sure exter nal regulator has been installed between propane LP supply and heater See guidelines un der Connecting to Gas Supply page 13 PRESSURE TESTING GAS SUPPLY PIPING SYSTEM Test Pressures In Excess Of 1 2 PSIG 3 5 kPa 1 Disconnect appliance with its appliance main gas valve control valve and equipment shutoff valve from gas supply piping system Pressures in excess of 1 2 psig will damage heater re
40. opane LP only 3 Gas leak See Warning statement at top of page 1 Open window to ventilate room Stop using odor caus ing products while heater is running 2 Refill supply tank propane LP only 3 Locate and correct all leaks see Checking Gas Connec tions page 14 Heater shuts off in use ODS operates 1 Not enough fresh air is avail able 2 Low line pressure 3 ODS pilot is partially clogged 1 Open window and or door for ventilation 2 Contact local natural or pro pane LP gas company 3 Clean ODS pilot see Cleaning and Maintenance page 21 Gas odor even when control knob is in OFF position 1 Gas leak See Warning statement at top of page 2 Control valve defective 1 Locate and correct all leaks see Checking Gas Connec tions page 14 2 Replace control valve Gas odor during combustion 1 Foreign matter between con trol valve and burner 2 Gas leak See Warning statement at top of page 1 Take apart gas tubing and remove foreign matter 2 Locate and correct all leaks see Checking Gas Connec tions page 14 Logs set cycles to pilot but room temperature drops to a lower than ideal level before log set comes back on 1 Thermostat sensing bulb needs to be repositioned 1 Reposition thermostat sens ing bulb see instructions for Optional Positioning of Ther mostat Sensing Bulb page 25 24 www desatech com 111347 01E OPTIONAL POSITIONING
41. or greater to allow proper gas volume to heater If pipe is too small undue loss of volume will occur WARNING A qualified service person mustconnectheaterto gas su pply Follow all local codes Installation must include an equipment shutoff valve union and plugged 1 8 NPT tap Locate NPT tap within reach for test gauge hook up NPT tap must be A CAUTION Neverconnect pro upstream from heater see Figure 14 page 14 pane LP fireplace directly to the IMPORTANT Install equipment shutoff valve in an propane LP supply This heater accessible location The equipment shutoff valve is for requires an external regulator turning on or shutting off the gas to the appliance not supplied Install the exter Check your building codes for any special nal regulator between the heater requirements for locating equipment shutoff and propane LP supply Apply pipe joint sealant lightly to male NPT threads This will prevent excess sealant from A WARNING Never connect going into pipe Excess sealant in pipe could result natural gas fireplace to private in clogged heater valves non utility gas wells This m gas is commonly known as A WARNING Use pipe joint wellhead gas sealant that is resistant to liquid petroleum LP gas Installation Items Needed Before installing heater make sure you have the We recommend that you install a sediment trap in items
42. or cause odors IMPORTANT Vent free heaters add moisture to the air Although this is beneficial installing heater in rooms without enough ventilation air may cause mildew to form from too much moisture See Air for Combustion and Ventilation page 5 CHECK GAS TYPE Use the correct gas type natural or propane LP for your unit If your gas supply is not correct do not install log set Call dealer where you bought log set for proper type fireplace A WARNING This appliance is equipped for natural or pro pane LP gas Field conversion is not permitted 111347 01E INSTALLATION Continued INSTALLATION AND CLEARANCES FOR VENT FREE OPERATION A WARNING Maintain the mini mum clearances If you can pro vide greater clearances from floor ceiling and adjoining wall MINIMUM FIREPLACE CLEARANCE TO COMBUSTIBLE MATERIALS Side Wall Ceiling 16 42 LOG SIZING REQUIREMENTS Minimum Firebox Height Depth Front Rear Width Width 17 14 28 21 Measured at 14 depth 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 Clearances from the side of the fireplace cabinet to any combustible material and wall should follow diagram in Figure 4 Example The face of a man
43. ources to light heater AIR FOR COMBUSTION AND VENTILATION AA WARNING Thisheater shall not be installed in a confined space or unusually tight construction unless provisions are provided for adequate combustion and ventilation air Read the following instructions toinsure properfresh air for this and other fuel burning appliances in your home Today s homes are built more energy efficient than ever New materials increased insulation and new construction methods help reduce heat loss in homes Home owners weather strip and caulk around windows and doors to keep the cold air out and the warm air in During heating months home owners want their homes as airtight as possible While it is good to make your home energy effi cient your home needs to breathe Fresh air must enter your home All fuel burning appliances need fresh air for proper combustion and ventilation 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 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 info
44. p on right bottom side see Figure 36 Figure 31 Adhesive backed Mounting Clip Thermostat sensing Bulb Figure 32 Location of Gas Valve Assembly and Thermostat Sensing Bulb Capillary Thermostat Sensing Bulb Thermostat lt p Retaining Screw Clamp Figure 33 Removing Thermostat Sensing Bulb Thermostat Sensing gt X exa Bulb Do Adhesive ES Backed JN Mounting Clip TA Figure 34 Locating Figure 35 Locating Thermostat Thermostat Sensing Sensing Bulb on Bulb on Factory Masonry Fireplace built Metal Fireplace Thermostat Sensing Bulb backed Mounting Clip Figure 36 Installing Thermostat Sensing Bulb behind Glass Doors 111347 01E www desatech com 25 OPTIONAL POSITIONING OF THERMOSTAT SENSING BULB Continued 4 The mounting clip must be a minimum of 3 from bottom of fireplace to prevent crimping of capil lary Once you have decided on a location clean the area thoroughly Remove the paper backing from the adhesive on back of mounting clip Press the clip into the new location so that the thermostat sensing bulb will be positioned vertically with the capillary at the bottom see Figure 37 Slide the thermostat sensing bulb into the clip IMPORTANT Do not crimp capillary Thermostat Sensing Bulb Adhesive backed Do Not Crimp Mounting Clip Capillary Capillary Figure 37 Positioning the Thermostat Sensing Bulb
45. r base as sembly by burners This could damage heater Always handle base assembly by grate 2 Remove all protective packaging applied to logs and heater for shipment 3 Check all items for any shipping damage If damaged promptly inform dealer where you bought heater www desatech com 111347 01E PRODUCT IDENTIFICATION Control Control Piezo Ignitor Cover Log Knob behind log Echo Valley Oak Logs with Manual Control N Control Control f Cover Log Knob Piezo Ignitor behind log Meadowbrook Oak Logs with Thermostat Control Figure 1 Product Identification PRODUCT FEATURES OPERATION This heater is clean burning It requires no outside venting There is no heat loss out a vent or up a chimney Heat is generated by realistic flames This heater is designed for vent free operation with flue damper closed It has been tested and approved to ANSI Z21 11 2 standard for unvented heaters State and local codes in some areas prohibit the use of vent free heaters This heater may also be operated as a vented decorative ANSI Z21 60 product by opening the flue damper SAFETY DEVICE This heater has a pilot with an Oxygen Deple tion Sensing ODS safety shutoff system The ODS pilot is a required feature for vent free room heaters The ODS pilot shuts off the heater if there is not enough fresh air PIEZO IGNITION SYSTEM This heater has a piezo ignitor This system re quires no matches batteries or other s
46. ree room heater is installed If fireplace has glass doors never operate this heater with glass doors closed If you operate heater with doors closed heat buildup inside fireplace will cause glass to burst Make sure there are no obstructions across opening of fireplace To prevent the creation of soot follow the instruc tions in Cleaning and Maintenance page 21 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 and furniture This heater needs fresh outside air ventilation to run properly This heater has an Oxygen Depletion Sensing ODS safety shutoff sys tem The ODS shuts down the heater if enough fresh air is not available See Air for Combus tion and Ventilation page 5 If heater keeps shutting off see Troubleshooting page 22 Do not run heater where flammable liquids or vapors are used or stored under dusty conditions Do not use this heater to cook food or burn paper or other objects Do not use heater if any part has been exposed to or under water Immediately call a qualified service technician to inspect the room heater and to replace any part of the control system and any gas control which has been under water Do not operate heater if any log is broken Do not operate heater if a log is chipped dime sized or larger 15 Turn heater off and let cool before se
47. rmation on pages 5 through 7 will help you classify your space and provide adequate ventilation 111347 01E www desatech com 5 AIR FOR COMBUSTION AND VENTILATION Continued Unusually Tight Construction The air that leaks around doors and windows may provide enough fresh air for combustion and ventilation However in buildings of unusually tight construction you must provide additional fresh air Unusually tight construction is defined as construction where a walls and ceilings exposed to the out side atmosphere have a continuous water vapor retarder with a rating of one perm 6 x 10 kg per pa sec m or less with openings gasketed or sealed and b weather stripping has been added on openable windows and doors and caulking or sealants are applied to areas such as joints around window and door frames between sole plates and floors between wall ceiling joints between wall panels at penetrations for plumb ing electrical and gas lines and at other openings If your home meets all of the three criteria above you must provide additional fresh air See Ventilation Air From Outdoors page 7 If your home does not meet all of the three criteria above proceed to Determining Fresh Air Flow For Heater Location Confined and Unconfined Space The National Fuel Gas Code ANSI Z223 1 NFPA 54 defines a confined space as a space whose volume is less than 50 cubic feet per 1 000 Btu per hour 4 8 m per
48. room unconfined If the actual Btu Hr used is less than the maxi mum Btu Hr the space can support the space is an unconfined space You will need no additional fresh air ventilation WARNING Ifthe area in which the heater may be operated is smaller than that defined as an unconfined space or if the building is of unusually tight construction provide adequate combustion and ventilation air by one of the methods described in the National Fuel Gas Code ANSI Z223 1 NFPA 54 Section 5 3 or applicable local codes VENTILATION AIR Ventilation Air From Inside Building This fresh air would come from an adjoining un confined space When ventilating to an adjoining unconfined space you must provide two perma nent openings one within 12 of the ceiling and one within 12 of the floor on the wall connecting the two spaces see options and 2 Figure 2 You can also remove door into adjoining room see option 3 Figure 2 Follow the National Fuel Gas Code ANSI Z223 1 NFPA 54 Section 5 3 Air for Combustion and Ventilation for required size of ventilation grills or ducts SSS i SS Ventilation my Grills Ventilation Grills Into Adjoining Into Adjoining Room Option 2 Remove phen pun Door into Adjoining Option O d p 12 IE 2222 22 A IT u Figure 2 Ventilation Air from Inside Building VENTILATION AIR
49. rvicing installing or repairing Only a qualified service person should install service or repair heater 16 Operating heater above elevations of 4 500 feet may cause pilot outage 17 To prevent performance problems do not use propane LP fuel tank of less than 100 lb capacity propane LP units only 18 Provide adequate clearances around air openings 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 Batterymarch Park Quincy MA 02269 Note Where listed vented decorative logs are required thermostat operation is not permitted State of Massachusetts The installa tion must be made by a licensed plumber or gas fitter in the Commonwealth of Massachusetts 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 Vent free gas products are prohibited for bedroom and bathroom installation in the Commonwealth of Massachusetts UNPACKING CAUTION Do not remove the data plates from the grate as sembly The data plates contain important warranty and safety information 1 Remove logs and heater base assembly from carton Note Do not pick up heate
50. screen in place Make sure fireplace screen is closed before running heater Keep the appliance area clear and free from combustible ma terials gasoline and other flam mable vapors and liquids 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 Do not place propane LP supply tank s in side any structure Locate propane LP supply tank s outdoors propane LP units only 111347 01E www desatech com 3 10 11 12 13 14 SAFETY INFORMATION Continued If you smell gas e shut off gas supply do not try to light any appliance 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 ifyoucannotreach your gas supplier call the fire department This heater shall not be installed in a bedroom or bathroom unless installed as a vented appli ance See Installing Damper Clamp Accessory for Vented Operation page 11 Before installing in a solid fuel burning fireplace the chimney flue and firebox must be cleaned of soot creosote ashes and loose paint by a qualified chimney cleaner Creosote will ignite if highly heated Inspect chimney flue for damage If damaged repair flue before operating heater Do not burn solid fuel in a masonry or UL127 factory built fireplace in which a vent f
51. space x 20 51 200 maximum Btu Hr the space can support 3 Add the Btu Hr of all fuel burning appliances in the space Vent free heater Btu Hr Gas water heater Btu Hr Gas furnace Btu Hr Vented gas heater Btu Hr Gas fireplace logs Btu Hr Other gas appliances Btu Hr Total Btu Hr Do not include direct vent gas appliances Di rect vent draws combustion air from the outdoors and vents to the outdoors Example Gas water heater 40 000 Btu Hr Vent free fireplace 330000 Btu Hr Total 73 000 Btu Hr 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 51 200 Btu Hr maximum the space can support 73 000 Btu Hr actual amount of Btu Hr used The space in the above example is a confined space because the actual Btu Hr used is more than the maximum Btu Hr the space can support You Example 6 www desatech com 111347 01E AIR FOR COMBUSTION AND VENTILATION Continued must provide additional fresh air Your options are as follows A Rework worksheet adding the space of an adjoining room If the extra space provides an unconfined space remove door to adjoining room or add ventilation grills between rooms See Ventilation Air From Inside Building B Vent room directly to the outdoors See Ven tilation Air From Outdoors Install a lower Btu Hr fireplace if lower Btu Hr size makes
52. st 8 up for all models If noncombustible material is less than 12 you must install the fireplace hood accessory See Figure 5 page 10 for minimum clearances 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 inch thick With sheet metal you must have noncombustible material behind it Noncombus tible material must extend at least 8 inches up If noncombustible material is less than 12 you must install the fireplace hood accessory Even if noncombustible material is more than 12 you may need the hood accessory to deflect heat away from your mantel shelf See Figures 5 6 and 7 page 10 for minimum clearances IMPORTANT If you cannot meet these minimum clearances you must operate heater with chimney flue damper open Go to Installing Damper Clamp Accessory for Vented Operation page 11 111347 01E www desatech com 9 INSTALLATION Continued Noncombus tible Material Distance A 12 or more Requirements for Safe Installation Noncombustible Mate rial OK Install fireplace hood accessory GA6050 GA6052 or GA6053 see Accessories page 27 Noncombustible materi als must be extended to atleast 8 See Between 8 and 12 above If you cannot extend material you must operate heater with flue damper open Between 8 and 12 Less than 8 Heat Resistant Materi
53. t holes If you remove logs for cleaning refer to Install Figure 29 Injector Holder On Outlet Burner Tube Ports Slots on injector holder for dust and dirt see Figures ing Logs page 15 to properly replace logs 29 and 30 Replace log s if broken or chipped dime sized or larger 111347 01E www desatech com 21 TROUBLESHOOTING A 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 POSSIBLE CAUSE OBSERVED PROBLEM REMEDY When ignitor button is pressed 1 there is no spark at ODS pilot 2 Dus Ignitor electrode not con nected to ignitor cable Ignitor cable pinched or wet Piezo ignitor nut is loose Broken ignitor cable Bad piezo ignitor Ignitor electrode positioned wrong Ignitor electrode broken 1 2 Dum Reconnect ignitor cable Free ignitor cable if pinched by any metal or tubing Keep ignitor cable dry Tighten nut holding piezo ig nitor to base panel of log set Nut is located behind base panel Replace ignitor cable Replace piezo ignitor Replace pilot assembly Replace pilot assembly When ignitor button is pressed 1 there is spark at ODS pilot but no ignition
54. tel bookshelf etc is made of combustible material and protrudes 3 2 from the wall This combus tible material must be 4 from the side of the fireplace cabinet see Figure 4 Note When installing your gas logs into a manufactured firebox follow firebox manufacturer s instructions for minimum clearances to combustible materials B Clearances from the top of the fireplace opening to the ceiling should not be less than 42 inches 121 4 Example 10 8 su 8 T at Q a 7 8 7116 FIREBOX 5 1 2 4 6 8 10 12 14 16 INCHES Minimum 16 inches from Side Wall Figure 4 Minimum Clearance for Combustible to Wall 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 Go to nstalling Damper Clamp Accessory for Vented Operation page 11 MINIMUM NONCOMBUSTIBLE MATERIAL CLEARANCES If Not Using Mantel Note If using a mantel proceed to f Using Mantel If not using a mantel follow the information on this page You must have noncombustible material s above the fireplace opening Noncombustible materials such as slate marble tile etc must be at least 1 2 inch thick With sheet metal you must have noncombustible material behind it Noncombustible material must extend at lea
55. very important to install the logs exactly as instructed Do not modify logs Only use logs supplied with heater Variable Manually Controlled Models LSL L Place rear log onto rear brackets making sure brackets fit into recess on bottom of log see Figure 18 Place left front log on grate fingers as shown in Figure 19 page 16 Place right front log on grate fingers and on left front log see Figure 19 page 16 Slide control cover log into position between two front logs assuring the cover log seats into cutout section see Figure 20 page 16 Rear Log Figure 18 Rear Log Placement Variable Manually Controlled Models 111347 01E www desatech com 15 INSTALLATION Cover Crossover Continued N 47 Log Left Front 2 Front L Log 2 e ront Log Figure 22 Front Log Placement Thermostat Models Figure 19 Left and Right Front Log Placement Variable Manually Controlled OPERATING HEATER Models MANUALLY CONTROLLED MODELS Crossover Log FOR YOUR SAFETY Bm READ BEFORE LIGHTING WARNING Ifyou do notfollow these instructions exactly a fire Cover Log or explosion may result caus n ing property damage personal injury or loss of life A This appliance has a pilot which must be Figure 20 Control Cover Log Placement lighted by hand When lighting the pilot Variable Manually Controlled Models follow these instructions exactly Thermostat Models CDL B BEFORE LIGHTING smell al
56. you smell gas STOP Follow B in the safety information in column 2 page 18 If you don t smell gas go to the next step 5 Turn control knob counterclockwise gt to the PILOT position Press in control knob for five 5 seconds see Figure 25 Note You may be running this heater for the first time after hooking up to gas sup ply If so the control knob may need to be pressed in for 30 seconds or more This will allow air to bleed from the gas system If control knob does not pop out when released contact a qualified service person or gas supplier for repairs 6 With control knob pressed in press and release ignitor button This will light pilot The pilot is attached to the front burner If needed keep pressing ignitor button until pilot lights Note If pilot does not stay lit contact a qualified service person or gas supplier for repairs Until repairs are made light pilot with match To light pilot with match see Manual Lighting Procedure page 20 7 Keep control knob pressed in for 30 seconds after lighting pilot After 30 seconds release control knob Note If pilot goes out repeat steps 3 through 7 This heater has a safety interlock system Wait one 1 minute for system to reset before lighting pilot again 8 Turn control knob counterclockwise gt to desired heating level The burners should light Set control knob to any heat level between and LO A CAUTION Do not try to

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