Desa SMS24 User's Manual
Contents
1. 901156 01 901156 01 125 Bag Embers 2 901157 02 901157 02 Lava Cinders 1 o NOU AON N 42 Nya a 2 a me a a a dhdaNaaaaa aa 117536 01B www desatech com 15 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 LIFETIME WARRANTY VENTED GAS LOGS DESA warrants this product to be free from defects in materials and components of the burner system for two 2 years and a lifetime on logs 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 This warranty is extended only to the original retail purchaser This warranty covers the cost of part s required to restore this log set to proper operating condition and an allowance for labor when provided by a DESA Authorized Service Center Warranty part s MUST be obtained through authorized dealers of this product and or DESA who will provide original factory replacement parts Failure to use original factory replacement parts voids this war ranty The log set MUST2. AX WARNING Keep flue open when operating unit Ad 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 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 Do not touch any electric switch do not use any phone in your building e Immediately call your gas supplier from a neighbor s phone Follow the gas supplier s instructions e Ifyou cannot reach your gas supplier call the fire department INSTRUCTIONS 1 STOP Read the safety information on column 1 2 Turn the gas shutoff valve to OFF 3 Wait five 5 minutes to clear out any gas If you then smell gas STOP Follow the safety information column 1 If you don t smell gas go on to the next step 4 Light a match and lay it on top of the pan material about 2 from the end of the sup ply side of the pan 5 Slowly turn the gas shutoff valve ON until the burner ignites If the burner doesn t ignite within 10 seconds with the match burning turn the shutoff valve OFF and repeat steps 1 through 4 again GAS SHUTOFF VALVE OPERATION Flame Adjustment Adjust the flame ON OFF by turning the gas shutoff valve counterclockwise 7 gt to open or clockwise N to close as necessa
3. When calling please have your model and serial numbers of your appliance ready You can also visit DESA s technical 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 Contact authorized dealers of this product If they can t supply original replacement part s call DESA s Technical Service Department at 1 866 672 6040 When calling DESA have ready e your name and address model and serial numbers of your log set e how log set was malfunctioning e type of gas used propane LP or natural gas e 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 at 1 866 672 6040 for referral information When calling DESA have ready e model number of your log set e the replacement part number 10 www desatech com 117536 01B TROUBLESHOOTING A WARNING Turn off log set and let cool before servicing Only a qualified service person should service and repair log set Note All troubleshooting items are listed in order of operation OBSERVED PROBLEM POSSIBLE CAUSE REMEDY Log set is smoking sooting 1 Poor fuel quality 1 Contact local natural gas excessively Note It is natural company and unavoidable f
4. Observe the smoke and be sure the vent is properly drawing it up the chimney If the smoke spills out into the room extinguish the flame and remove any obstruction until proper venting is achieved The chimney flue must remain open a minimum of 3 at all times during the operation of this log set 117536 01B www desatech com 5 INSTALLATION Continued INSTALLING DAMPER CLAMP Secure the damper stop clamp provided to the leading edge of the damper as shown in Figure 3 If for any rea son this clamp doesn t work on your fireplace another suitable clamp or permanent stop must be installed or the damper blade must be cut or removed Damper mf Clamp Damper N A Manufactured Fireplace Figure 3 Attaching Damper Clamp CONNECTING TO GAS SUPPLY Damper Masonry Fireplace AX WARNING A qualified service person mustconnectlogsetto gas supply Follow all local codes Installation Items Needed Before installing log set make sure you have the items listed below e piping check local codes e sealant resistant to Propane LP gas e equipment shutoff valve e test gauge connection e adjustable crescent wrench or pliers e sediment trap e tee joint e pipe wrench AX CAUTION Use only new black ironorsteel pipe Internally tinned copper tubing may be used in certain areas Check your local codes Use pipe of 1 2 diameter or greater to allow pr
5. 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 warnings Keep this manual for reference It is your guide to safe and proper operation of this log set Ay WARNING Any change to this log set or its controls can be dangerous AR WARNING Donotuseablow erinsert heatexchangerinsertor other accessory not approved for use with this appliance 117536 01B AR WARNING Installed decora tive glass door enclosures must be fully opened when operating this gas appliance Due to high temperatures the appliance should be located out of traffic and away from furniture and draperies Do not place clothing or other flammable material on or near the appliance Never place any objects on the appliance Log set becomes very hot when in use Keep children and adults away from hot surface to avoid burns or clothing ignition Appli ance will remain hot fora time after shutdown Allow surface to cool before touching Carefully supervise young chil dren when they are in the room with appliance You must operate this appliance with a fireplace screen in place Make sure fireplace screen is closed before running appliance Keep the appliance area clear and free from combustible ma terials gasoline and other flam mable vapors and liquids www desatech com SAFET
6. 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 log set 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 INCLUDING WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE TO TWO 2 YEARS ON BURNER SYSTEM AND A LIFETIME ON LOGS FROM THE DATE OF FIRST PURCHASE AND DESA S LIABILITY IS HEREBY LIMITED TO THE PURCHASE PRICE OF THE PRODUCT AND DESA 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 sta
7. e If you cannot reach your gas supplier call the fire department IMPORTANT Operating log set 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 Log set produces a clicking tick ing noise just after burner is lit or shut off ll Metal expanding while heating or contracting while cooling 1 This is common with most log sets If noise is excessive con tact qualified service person Log set produces unwanted 1 odors Log set burning vapors from paint hair spray glues clean ers chemicals new carpet etc See IMPORTANT state ment above Gas leak See Warning statement at top of page Open flue to maximum Stop using odor causing products while log set is running Locate and correct all leaks see Checking Gas Connec tions page 7 Gas odor even when control knob 1 is in OFF position Gas leak See Warning statement at top of page Control valve defective Locate and correct all leaks see Checking Gas Connec tions page 7 Replace control valve Gas odor during combustion ie Gas leak See Warning statement at top of page Locate and correct all leaks see Checking Gas Connec tions p
8. gas meter Equipment Shutoff Valve Gas Meter Figure 5 Checking Gas Joints 3 Check all joints from gas meter to equipment shutoff valve see Figure 5 Apply noncorro sive leak detection fluid to gas joints Bubbles forming show a leak 4 Correct all leaks at once HEARTH KIT ASSEMBLY AND INSTALLATION Kit Assembly Ramp Pan Burner 1 Determine which side the gas line feeds into the fireplace This log set is factory set up for right side facing gas feed If your gas line is on the right side go to the Installation and Gas Connection section below If your gas line is on the left side of the fireplace proceed with steps 2 through 4 below Note Pilot kit can only be installed on the right facing side 2 Remove the nuts securing the gas inlet venturi to the bottom of the burner see Figure 6 Remove the venturi from the pan taking care not to damage the gasket between the venturi and the pan 4 Reverse the direction of the venturi and re attach to the bottom of the pan using factory nuts Burner Inlet Fitting Factory Installed Burner Orifice Factory Installed Adapter Fitting Gas Connector y Tube Burner Inlet Venturi Attached to Pan Bottom Figure 6 Connecting Gas to Appliance Installation and Gas Connection 1 Place the ramp burner assembly in the center of the fireplace floor Make sure the front of pan faces forwar
9. Additional decoration for front grate FIRE CRACKLE CF6 A Not Shown For all models Creates the sound of a real burn ing fire MANUAL CONTROL ON OFF SAFETY VALVE PILOT KIT GA9200 Not Shown For all models Contains components for pro pane LP conversion www desatech com 13 ILLUSTRATED PARTS BREAKDOWN MODELS SMS18 AND SMS24 14 www desatech com 117536 01B PARTS LIST This list contains replaceable parts used in your log set When ordering parts follow the instructions listed under Replacement Parts on page 10 of this manual KEY PART NUMBER 901056 01 901056 01 3 8 FLR x 1 2 FPT Adapter 901059 01 901059 01 3 8 FLR x 3 8 FPT Adapter 101628 01 101628 01 Gas Line 10 Flex 104506 27 104506 28 Natural Gas Injector 14538 14538 Venturi 14527 14527 Venturi Gasket 115482 01 115482 02 Burner Pan 901242 01 901242 01 Damper Clamp Std Assy 11209 11209 Nut 10 24 117244 01 117244 02 Log Grate 117250 01 117251 01 Front Bottom Left Log 117250 02 117251 02 Front Bottom Right Log 901111 01 901111 02 Back Log 901101 01 901101 01 Middle Right Log 901094 01 Middle Center Log 111502 07 111502 07 Middle Left Log 901778 01 901778 01 Top Left Log 901120 01 901120 01 Top Right Log 901118 01 901118 01 Top Rear Log 112363 03 112363 03 Ember Chunk 112363 05 111961 05 Ember Chunk 112363 06 112363 06 Ember Chunk 117248 01 117248 01 Steel Grate Step PARTS AVAILABLE NOT SHOWN
10. VENTED DECORATIVE NATURAL GAS LOGS OWNER S OPERATION AND INSTALLATION MANUAL RGA 2 72 APPROVED TESTED AND LISTED BY We recommend that our products be installed and servi by professionals wl ied in the U S by NFI 3 are a me National Fireplace Institute IT zE Ghz www nficertified org ho SYCAMORE SPLIT MODELS SMS18 AND SMS24 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 o
11. Y INFORMATION Continued 1 Ifyou smell gas e shut off gas supply e do not try to light any appliance e do not touch any electrical switch do not use any phone in your building e immediately call your gas supplier from a neighbor s phone Follow the gas suppliers instructions e if you cannot reach your gas supplier call the fire department 2 Never install the log set e in a recreational vehicle e where curtains furniture clothing or other flammable objects are less than 42 inches from the front top or sides of the log set e in high traffic areas e in windy or drafty areas 3 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 dam aged repair flue before operating appliance 4 This log set is designed to be smokeless If logs ever appear to smoke turn off appliance and call a qualified service person Note During initial operation slight smoking could occur due to log curing and the burning of manufacturing residues You may wish to add more ventilation by opening a window 5 To reduce the creation of soot follow the instructions in Cleaning and Maintenance page 10 6 The installation and provisions for combustion and ventilation air must conform with the National Fuel Gas Code ANSI Z233 1 NFPA 54 Section 5 3 Air fo
12. age 7 www desatech com 117536 01B ACCESSORIES Purchase these log set accessories from your local dealer If they can not supply these accessories call DESA at 1 866 672 6040 for referral infor mation 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 INDIVIDUAL ROUND LOG GA9450A Not Shown For decorative purposes only Not to be used as ad ditional logs on unit INDIVIDUAL SPLIT LOG GA9550A Not Shown For decorative purposes only Not to be used as ad ditional logs on unit PINE CONES GA9650A Not Shown For all models Use for additional decoration only 3 pine cones per box ASH BED MATERIAL VERMICULITE GA9750A Not Shown For all models Use for firebox decoration only 117536 01B GLOWING EMBERS GA9950A Not Shown For all models Use for firebox decoration only SILICA SAND GA9850A Not Shown For all models Use for firebox decoration only LAVA ROCK GA6067A Not Shown For all models Use for firebox decoration only DECORATIVE ASH BED CONTROL COVER CDABKA Not Shown An attractive way to cover control knob and piezo ignitor 18 ORNAMENTAL GRATE ENHANCER GA9350A Not Shown For 18 models only Additional decoration for front grate 24 ORNAMENTAL GRATE ENHANCER GA9360A Not Shown For 24 models only
13. ck Cover www desatech com 117536 01B SAFETY INFORMATION tains and or generates chemicals known to the State of California to cause cancer or birth defects or other reproductive harm A RWARNING This product con AX WARNING Keep flue open when operating unit AX WARNING This appliance is equipped for natural gas An op tional propane LP conversion kit model GA9200 must be installed for use with propane LP gas AAWARNING Do notallowfans to blow directly into the fireplace Avoid any drafts that alter burner flame patterns IMPORTANT Read this owner s manual carefully and completely before trying toassemble operate orservice this log set Improperuse of this log set can cause serious injury or death from burns fire explosion electrical shock and carbon monoxide poisoning A DANGER Carbon monoxide poisoning may lead to death Carbon Monoxide Poisoning Early signs of carbon monoxide poisoning resemble the flu with head aches dizziness or nausea If you have these signs the log set may not be working properly Get fresh air at once Have log set 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 Gas Natural gas is odorless An odor making agent is added to the gas The odor helps you detect
14. d 2 Thread the gas supply fitting to the fireplace gas supply pipe Use thread sealant 3 Install the gas connector tube to the gas supply fitting Carefully shape tube to attach to adapter fitting Be careful not to cause kinks in tube 4 Attach opposite end of gas connector tube to the gas inlet fitting on the end of the venturi 117536 01B www desatech com T INSTALLATION Continued OPTIONAL GA9200 SERIES ON OFF SAFETY VALVE PILOT KIT For additional convenience and safety an optional ON OFF safety valve pilot kit is available See Ac cessories page 13 Parts are available in this kit for propane LP conver sion See kit instruction sheet for detailed installation instructions AX WARNING You must use an ON OFF safety valve pilot kit for propane LP conversion TESTING BURNER FOR LEAKS 1 Generously apply noncorrosive leak detec tion fluid to all connections A RWARNING Never check for gas leaks with open flame 2 Light the burner with the shutoff valve no more than half open and holding a match slightly in front of the pan see Lighting Instructions page 9 3 Inspect all connections for bubbles raw gas odor or flame from any area other than the burner leaks If leaks are detected shut off the gas valve immediately Tighten or reas semble the loose connection s using pipe joint compound until burner system is leak free 4 When the burner is tested and leak free observe t
15. he individual tongues of flame on the burner Make sure that all ports are clear and produc ing flame evenly across the burner If any ports appear blocked clear them by removing the burner manifold and reaming the ports with a modified paper clip or other suitable tool 5 When finished testing turn the gas shutoff valve OFF to extinguish all flames ADDING PAN MATERIAL Open the bag of glowing embers and spread it evenly over the burner ramp INSTALLING THE GRATE AND LOGS 1 Slide grate steps onto the ends of the grate as shown in Figure 7 2 Place the grate over the burner pan where the two outer horizontal supports on the grate fit into the two pan positioning tabs on the outer edges of the pan 2 aS Place two front logs onto grate see Figure 8 Place back log on grate steps see Figure 8 Figure 8 and Figure 9 on page 9 show a recom mended log arrangement however you may arrange the logs as you wish Leave as much open space as possible to minimize flame im pingement and sooting Note Logs may chip if they are handled roughly or if hit together while being placed Place ember chunks onto bottom portion of ramp burner using Figure 9 page 9 as an example Grate Steps Figure 7 Attaching Grate Steps Figure 8 Installing Logs 8 www desatech com 117536 01B INSTALLATION Continued Figure 9 Placement of Top Logs OPERATING APPLIANCE i FOR YOUR SAFETY RE AD BEFORE LIGHTING
16. oper gas vol ume to log set If pipe is too small undue loss of volume will occur 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 upstream from log set see Figure 4 IMPORTANT Install equipment shutoff valve in an accessible location The equipment shutoff valve is for turning on or shutting off the gas to the appliance Apply pipe joint sealant lightly to male NPT threads This will prevent excess sealant from going into pipe Excess sealant in pipe could result in a clogged burner injector A WARNING Use pipe joint sealantthatis resistantto liquid petroleum LP gas We recommend that you install a sediment trap in supply line as shown in Figure 4 Locate sediment trap where itis within reach for cleaning Install in piping system between fuel supply and appliance Locate sediment trap where trapped matter is not likely to freeze A sediment trap traps moisture and contaminants This keeps them from going into log set controls If sediment trap is not installed or is installed wrong log set may not run properly Approved Flexible Gas Hose if allowed by local codes CSA Design Certified Equipment Shutoff Valve With 1 8 NPT Tap From Gas Meter 5 W C to 10 5 W C Pressure Pipe Tee CaP Nipple Joint T Sediment Trap Figure 4 Gas Connection Purchase the optional CSA de
17. or vented gas 2 log sets to produce moderate levels of carbon soot where Fireplace venting system not 2 drafting properly Adjust damper wide open and or have fireplace and vent ing professionally cleaned and flames contact the logs checked 3 Excessive flame impingement 3 Separate the logs to allow more or blockage flame passage 4 Improper fuel air mixture 4 Remove any foreign items from the flame pattern and or check for proper orifice sizing 5 Excessive gas supply pressure 5 Preheat flue in very cold weather Burner is excessively noisy 1 Passage of air gas across ir 1 Relieve any tight bends or Note The movement and com regular surfaces kinks in gas supply line bustion of gas will create low unavoidable levels of noise Burner flame is too low or too 1 Incorrect gas supply or 1 Check for proper gas supply high pressure pressure 2 Blocked burner orifice or 2 Free burner orifice and mani burner manifold ports fold ports of any burrs paint or other blockage 3 Improper burner orifice size 3 Verify proper burner orifice sizing see Figure 2 page 5 117536 01B www desatech com TROUBLESHOOTING Continued your building A WARNING If you smell gas e Shut off gas supply e Do not try to light any appliance e Do not touch any electrical switch do not use any phone in Immediately call your gas supplier from a neighbor s phone Fol low the gas supplier s instructions
18. ortant safety and warranty information Burner Pan 1 Remove logs hearth kit pan materials and hardware from carton 2 Remove all protective packaging applied to logs and base for shipment uy Check all items for any shipping damage If damaged promptly inform dealer where you bought the product 4 www desatech com 117536 01B INSTALLATION 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 Creo sote will ignite if highly heated A dirty chimney flue may create and distribute soot within the house Inspect chimney flue for damage If damaged repair flue before operating appliance NOTICE Installation service and repair of this appliance must be performed by a qualified installer service agency company or gas supplier experienced with this type of gas appliance Only factory authorized components listed in these instructions may be used in accordance with the manufacturer s instructions and all codes and requirements of the authority having jurisdiction Any modifications to this kit or use of unauthorized components or accessory items will void the manufacturer s warranty and may result in a hazardous condition FLUE OPENING SPECIFICATIONS Note This vented appliance must be installed only in a solid fuel burning fireplace with a
19. r Combustion and Ventilation 7 Do not run log set e where flammable liquids or vapors are used or stored e under dusty conditions 8 Do not burn solid fuel in the fireplace after installing the log set Do not use this log set to cook food or burn paper or other objects 9 Do not use appliance if any part has been exposed to or under water Immediately call a qualified service technician to inspect the room appliance and to replace any part of the control system if using GA9200 and any gas control which has been under water 10 To help prevent breakage new logs must be broken in see Curing Logs page 9 11 Turn log set off and let cool before servicing installing or repairing Only a qualified service person should install service or repair log set 12 Provide adequate clearances around air openings PRODUCT IDENTIFICATION Burner Inlet Under Pan Figure 1 Product Identification Ramp Pan Burner Hearth Kit Model Serial Number Log Set Model LOCAL CODES Install and use log set 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 UNPACKING AX CAUTION Do not remove the data plates from the burner pan The data plates contain imp
20. r the gas supplier WARNING This appliance is for installation only in a solid fuel burning masonry or UL127 factory built fireplace constructed of noncombustible material and connected to a working flue See page 5 for minimum flue opening WARNING This is a decorative gas appliance 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 the National Fuel Gas Codes ANSI Z233 1 NFPA 54 Section 5 3 Air for Combustion and Ventilation 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 Aftermarket Completion of sale not for purpose of resale from the manufacturer State of Massachusetts The installation must be made by a licensed plumber or gas fitter in the Commonwealth of Massachusetts TABLE OF CONTENTS Safety Info MatiON ocasionan 3 SONICO FINS Anae anciana 10 Product Identification 4 Technical Service 10 Local Codes 4 Replacement Part v 10 Unpacking 4 Troubl shooting c iciismomiisassme siria 11 Installation 5 Accessorles sie e Operating Ap plianGe isic concertar 9 Illustrated Parts Breakdown and Parts List 14 Cleaning and Maintenance 10 Warranty Information oooccnnnnncnnn o Ba
21. ry Shutting Off Appliance Turn gas shutoff valve clockwise N to the OFF position O lt lt IN LOGS During the 2 3 hour appliance break in period you may detect an odor from the appliance as the various paints and compounds used in the manufacturing of this log set cure This is a normal and temporary situation that is not cause for alarm However you may want to provide extra ventilation to the room during this time To ensure proper curing of the logs e Ignite a 2 flame and maintain it for 1 hour Burn the logs in consecutive 1 hour periods raising the flame an additional 2 to full flame height for a total of three hours 117536 01B www desatech com 9 CLEANING AND MAINTENANCE Keep the area around the log set clean and clear of debris e Occasionally you may use a soft bristle brush to clean logs Once every year a qualified agency or certified chimney sweep should examine and clean the venting system of the fireplace SERVICE HINTS When Gas Pressure is Too Low e pilot will not stay lit burners will have delayed ignition e appliance will not produce specified heat e 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 s Technical Service Department at 1 866 672 6040
22. sign certified equipment shutoff valve from your dealer See Accessories page 13 Minimum inlet pressure for purpose of input adjustment 6 www desatech com 117536 01B INSTALLATION Continued 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 toalljoints Bubbles forming show a leak Correct all leaks at once PRESSURE TESTING GAS SUPPLY PIPING SYSTEM Test Pressures In Excess Of 1 2 PSIG 3 5 kPa 1 Disconnect log set and its individual equipment shutoff valve from gas supply piping system 2 Cap off open end of gas pipe where equipment shutoff valve was connected 3 Pressurize supply piping system by either us ing compressed air or opening main gas valve located on or near gas meter 4 Check all joints of gas supply piping system Apply noncorrosive leak detection fluid to gas joints Bubbles forming show a leak 5 Correct all leaks at once Reconnect log set 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 5 2 Pressurize supply piping system by either us ing compressed air or opening main gas valve located on or near
23. te For information about this warranty write DE Ss A 2701 Industrial Drive P O Box 90004 Bowling Green KY 42102 9004 www desatech com 117536 01 NOT A UPC 117536 01 Rev B 07 05
24. working flue and constructed of noncombustible material The charts in Figure 2 indicate technical information regarding the installation of your gas log set Please make sure that all of the specifications shown are applicable before installation is attempted The fireplace must include a working flue and venting system with the minimum openings shown in the Figure 2 Burner Btu Input Minimum Descrip Natural Vent Model tion Gas Opening SMS18 18 Ramp 60 000 8 dia SMS24 24 Ramp 80 000 8 dia MINIMUM FIREBOX SIZES MODEL FRONT BACK DEPTH HEIGHT WIDTH WIDTH SMS18 28 18 16 18 SMS24 32 24 16 18 At depth indicated FUEL INLET PRESSURE SPECIFICATIONS W C Min Max NG 5 5 10 5 LP 11 13 BURNER ORIFICE LOG NATURAL SIZE IN NUM 18 120 31 24 140 28 Figure 2 Technical Information Charts CHECK GAS TYPE Use only natural gas If your gas supply is not natural gas you must install ON OFF Safety Valve Pilot Kit see Accessories page 13 Call dealer where you bought log set Tf the fireplace does not have a gas supply shutoff valve one must be installed VENTING SPECIFICATIONS FOR INSTALLATION The fireplace chimney flue and vent must be draft ing properly To check the vent for proper drafting Light a tightly rolled newspaper on one end and place it at the inside front edge of the fireplace
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