Desa 103426-01 Indoor Fireplace User Manual
Contents
1. Heater produces a clicking ticking noise just after burners are lit or shut off 1 Metal expanding while heating or con tracting while cooling 1 This is common with most heaters If noise is excessive contact qualified ser vice person Heater produces unwanted odors Heater burning vapors from paint hair spray glues cleaners chemicals new carpet etc See IMPORTANT state ment above Gas leak See Warning statement at top of page Open window and ventilate room Stop using odor causing products while heater is running Locate and correct all leaks see Check ing Gas Connections page 11 Heater shuts off in use ODS operates Not enough fresh air is available Low line pressure ODS pilot is partially clogged Open window and or door for ventila tion Contact local natural gas company Clean ODS pilot see Cleaning and Maintenance page 17 Gas odor even when control knob is in OFF position Gas leak See Warning statement at top of page Control valve defective Locate and correct all leaks see Check ing Gas Connections page 11 Replace control valve Gas odor during combustion Foreign matter between control valve and burner Gas leak See Warning statement at top of page Take apart gas tubing and remove for eign matter Locate and correct all leaks see Check ing Gas Connections page 11 Log set cy2. bustion and ventilation Exhaust fans fireplaces clothes dryers and fuel burning appliances draw air from the house to operate You must provide ad equate fresh air for these appliances This will insure proper venting of vented fuel burning appliances PROVIDING ADEQUATE VENTILATION The following is exerpts from National Fuel Gas Code NFPA 54 ANSI Z223 1 Section 5 3 Air for Combustion and Ventilation All spaces in homes fall into one of the three following ventilation classifications 1 Unusually Tight Construction 2 Uncon fined Space 3 Confined Space The information on pages 4 and 5 will help you classify your space and provide ad equate ventilation Unusually Tight Construction The air that leaks around doors and win dows 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 de fined as construction where a walls and ceilings exposed to the outside atmosphere have a continuous water vapor re tarder 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 c caulking or sealants are ap plied to areas such as joints around window and door frames between sole plates and floors between wall ceil ing joints between wall panels at penetrations for plum
3. See Accessories page 23 Minimum inlet pressure for purpose of input adjustment Figure 14 Gas Connection Continued 10 103426 SPLIT OAK AND AMERICAN OAK DESIGN 18 24 AND 30 MODELS INSTALLATION Continued CHECKING GAS CONNECTIONS A WARNING Test all gas pip ing and connections for leaks after installing or servicing Cor rect all leaks at once A WARNING Never use an open flame to check for a leak Apply a mixture of liquid soap and water to all joints Bubbles forming show a leak Correct all leaks at once Pressure Testing Gas Supply Piping System Test Pressures In Excess Of 1 2 PSIG l Disconnect heater and its individual manual shutoff valve from gas supply piping system Pressures in excess of 1 2 psig will damage heater regulator Cap off open end of gas pipe where manual shutoff valve was connected Pressurize supply piping system by ei ther using compressed air or opening main gas valve located on or near gas meter Check all joints of gas supply piping system Apply mixture of liquid soap and water to gas joints Bubbles form ing show a leak Correct all leaks at once Reconnect heater and manual shutoff valve to gas supply Check reconnected fittings for leaks Test Pressures Equal To or Less Than 1 2 PSIG 1 Close manual shutoff valve see Fig ure 15 Pressurize supply piping system by ei ther using compressed air or opening main gas va
4. above 2 Make sure manual shutoff valve is fully open 3 Press in and turn control knob clock wise Zw to the OFF position SS T Ignitor Button Figure 28 Control Knob and Ignitor Button Location Control Knob Continued UNVENTED NATURAL GAS LOG HEATER OPERATING HEATER Manually Controlled Models Continued 4 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 in formation above If you don t smell gas go to the next step 5 Press in control knob and turn coun terclockwise tothe PILOT po sition Keep control knob pressed in for five 5 seconds see Figure 28 page 15 Note You may be running this heater for the first time after hook ing up to gas supply If so the con trol knob may need to be pressed in for 30 seconds This will allow air to bleed from the gas system 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 press ing ignitor button until pilot lights Note If pilot does not light contact a qualified service person or gas sup plier for repairs Until repairs are made light pilot with match To light pilot with match see Manual Light ing Procedure column 2 7 Keep control knob pressed in for 30 seconds after lighting pilot After 30 seconds release
5. information When calling DESA International have ready model number of your heater the replacement part number 103426 SPLIT OAK AND AMERICAN OAK DESIGN 18 24 AND 30 MODELS ACCESSORIES Purchase these heater accessories from your local dealer If they can not supply these accessories call DESA International s Parts Department at 1 800 972 7879 for referral information You can also write to the ad dress listed on the back page of this manual MANUAL SHUTOFF VALVE GA5010 Forall models Manual shutoff valve with 1 8 NPT tap Fits 1 2 NPT pipe ua BLACK FIREPLACE HOOD GA6050 For all models Helps deflect heat away from mantel or wall above fireplace BRASS FIREPLACE HOOD GA6052 For all models Helps deflect heat away from mantel or wall above fireplace VENT FREE LOGMATE STOVE SVFBC For models VLI8N P VLI8NT A VLISPT A VLI8NV VLI8PV VS18NV B VSI8PV B VSI8NT A VSI8PT A CF18N P CFI8NT A CF18PT A CFS18NV B CFS18PV B 103426 VENT FREE LOGMATE FIREBOXES Available in 32 36 and 42 models May be paired with the logs listed below Circu lating fireboxes feature louvers and an op tional blower Non circulating smooth face models are ideal for custom trim applica tions such as stone or marble FB32C CIRCULATING FB32NC NON CIRCULATING SERIES For 18 and 24 models VLI8N P VL24N P VLI8NT A VLI
6. 098593 01 098593 01 Thermocouple 098249 01 098249 01 098249 01 Nut 101006 01 101006 01 101006 01 Pilot Bracket 101330 01 101330 02 101330 03 Front Burner Assembly 101008 01 101008 01 101008 01 Gasket Crossover Burner 101007 01 101007 01 101007 01 Crossover Burner 100999 04 100999 05 100999 06 Rear Burner Assembly 101331 05 101331 06 101331 07 Base Assembly with decals 098271 07 098271 06 098271 06 Ignitor Cable 097159 02 097159 02 097159 02 Piezo lgnitor 098867 09 098867 09 098867 09 Gas Regulator M11084 38 M11084 38 M11084 38 Screw 102810 01 102810 02 102810 03 Inlet Tube 098354 01 098354 01 098354 01 Control Knob 098462 03 098462 03 098462 03 Control Rod 100000 01 100000 01 100000 01 Cotter Pin 101053 01 101053 01 101053 01 Adapter 099211 01 099211 01 099211 01 Screw 098544 01 098544 01 098544 01 Thermostat Clamp 101329 14 101329 16 101329 16 Thermostat Gas Valve Assy 100994 01 100994 01 100994 01 Thermovalve Bracket 101004 11 101004 04 101004 05 Rear Burner Injector 101004 11 101004 08 101004 08 Front Burner Injector 102811 01 102811 01 102811 01 Thermostat Burner Tube 099387 09 099387 09 099387 09 Pilot Tube 102255 01 102255 01 102255 01 Strap 102764 01 102764 01 102764 01 Heat Shield PARTS AVAILABLE NOT SHOWN 100563 01 100563 01 100563 01 Warning Plate 101054 01 101054 01 101054 01 Lighting Instructions Plate 100565 01 100565 01 100565 01 Warning Plate Fastener 100639 01 100639 01 100639 01 Caution Decal 101137 0
7. fireplace mark screw lo cations in mortar joint of bricks Remove heater base from fireplace Remove mounting brackets from heater base Drill holes at marked locations using 3 16 drill bit Attach mounting brackets to fireplace floor using masonry screws in hard ware package Reattach heater base to mounting brackets Tighten nuts firmly Connect to gas supply See Connect ing To Gas Supply page 10 Heater Gas Regulator Masonry Screw Mounting Bracket Continued UNVENTED NATURAL GAS LOG HEATER INSTALLATION Continued CONNECTING TO GAS SUPPLY NOTICE A qualified service per son must connect heater to gas supply Follow all local codes Installation Items Needed Before installing heater make sure you have the items listed below piping check local codes sealant resistant to LP gas manual shutoff valve test gauge connection sediment trap tee joint pipe wrench An A G A design certified manual shutoff valve with 1 8 NPT tap is an acceptable alternative to test gauge connection Pur chase the optional A G A design certified manual shutoff valve from your dealer See Accessories page 23 A WARNING Never connect heater to private non utility gas wells This gas is commonly known as wellhead gas A CAUTION Use only new black iron or steel pipe Inter nally tinned copper tubing may be used in certain areas Check your local
8. flue damper open 8 2g Mantel Clearances In addition to meeting non combustible ES material clearances you must also meet T 2 required clearances between fireplace open Combustible LA UO aterial ing and mantel shelf If you do not meet the clearances losted 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 7 103426 All minimum distances are in inches Log Set 2412 2712 30 24 30 Models Continued 7 8 14 1634 1812 20 lt 18 Model Y Y y Top of Fireplace n M v J Opening Minimum Non Distances to Combustible Underside of Material Height Mantel Figure 7 Minimum Mantel Clearances Without Using Hood UNVENTED NATURAL GAS LOG HEATER INSTALLATION Continued Determining Minimum Mantel Clearance When Using a Hood If above minimum clearances are not met you must have a hood Follow minimum clearances shown in Figure 8 when using hood Mantel Shelf Underside of Mantel Shelf Minimum Non Combustible Material GA6050 GA6052 12 All minimum distances are in inches Log Sets 20 4 18 24 amp 30 Models 15 Top of Fireplace Figure 8 Minimum Mantel Clearances When Using Hood If your installation does not meet the above minimum clearances you must operate the
9. logs only with the flue damper open OR raise the mantel to an acceptable height OR remove the mantel Floor Clearances A Ifinstalling appliance on the floor level you must maintain the minimum dis tance of 14 to combustibles see Fig ure 9 Combustible 14 Material Min l INNNNNNANNJ Non Combustible Material Figure 9 Minimum Fireplace Clearances If Installed at Floor Level B If combustible materials are less than 14 to the fireplace you must install appliance at least 5 above the combus tible flooring see Figure 10 Opening Distances to Underside of Mantel Hearth Combustible Material EE Min Figure 10 Minimum Fireplace Clearances Above Combustible Flooring INSTALLING DAMPER CLAMP ACCESSORY FOR VENTED OPERATION Note When used as a vented heater appli ance must be installed only in a solid fuel burning fireplace with a working flue and constructed of non combustible material If yourheaterisa manually controlled model you may use this heater as a vented product There are three reasons for operating your heater in the vented mode 1 The fireplace does not meet the clear ance to combustibles requirements for vent free operation 2 Stateorlocal codes do not permit vent free operation 3 You prefer vented operation 8 If reasons number 1 or 2 above apply to you you must permanently open chimney flue damper You must i
10. technician 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 to replace any part of the control system and any gas control which has been un der water EH 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 Also if fireplace opening has vents at the bottom you must open the vents before operating heater You must operate this heater with afireplace screenin 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 present Open damper or window to vent smell This will only last a few hours Note Homeowners generally prefer to operate their heater with the chim ney damper closed This will put all the heat into the room Howeverthere may be times you will desire the full flames of the High 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
11. the bottom of the crossover log The crossover log should fit in the cutout of the top middle log see Figure 25 103426 Bottom Middle Log 2 Peg S Peg Groove Metal Post Groove Metal Post Figure 22 Installing Bottom Middle Log 2 Groove in Pe Back of Log Rear Log 3 Figure 23 Installing Rear Log 3 Top Middle Log 4 Bottom Middle Log Figure 24 Installing Top Log 4 Crossover Log 4 Hole Cutout Figure 25 Installing Crossover Log 5 UNVENTED NATURAL GAS LOG HEATER OPERATING HEATER Thermostat Controlled Models FOR YOUR SAFETY READ BEFORE LIGHTING A WARNING If you do not fol low these instructions exactly a fire or explosion may result caus ing property damage personal injury or loss of life A This appliance has a pilot which must be lighted by hand When lighting the pilot follow these instructions ex actly B 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 build ing Immediately call your gas supplier from a neighbor s phone Follow the gas supplier s instructions If you cannot reach your gas sup plier call the fire department C Use only your hand to pus
12. 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 NATURAL GAS LOG HEATERS DESA International warrants this product to be free from defects in materials and components for three 3 years and five 5 years on stainless steel burners 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 heater 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 International 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 aresult of misuse accidents lack of proper maintenance or defects caused by im
13. x height Length x Width x Height cu ft volume of space Example Space size 20 ft length x 16 ft width x 8 ft ceiling height 2560 cu ft volume of space If additional ventilation to adjoining room is supplied with grills or open ings add the volume of these rooms to the total volume of the space 2 Divide the space volume by 50 cubic feet to determine the maximum Btu Hr the space can support volume of space 50 cu ft Maximum Btu Hr the space can support Example 2560 cu ft volume of space 50 cu ft 51 2 or 51 200 maximum Btu Hr the space can sup port 3 Add the Btu Hr of all fuel burning ap pliances 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 Example Gas water heater 40 000 Btu Hr Vent free heater 33 000 Btu Hr Total 73 000 Btu Hr Do not include direct vent gas appli ances Direct vent draws combustion air from the outdoors and vents to the outdoors Continued 103426 SPLIT OAK AND AMERICAN OAK DESIGN AIR FOR COMBUSTION AND VENTILATION Continued 4 Compare the maximum Btu Hr the space can support with the actual amount of Btu Hr used Btu Hr maximum the space can support Btu Hr actual amount of Btu Hr used Example 51 200 Btu Hr maximum the space can support 73 000 Btu Hr actual amount of Btu
14. 08 01 101007 01 100999 04 101331 10 098271 07 102445 01 098867 09 M11084 38 101011 01 098354 01 098462 03 098325 01 098508 01 102568 01 101005 01 M11084 26 101004 11 101004 11 102258 01 099387 08 098276 01 103042 01 098594 01 098593 01 098249 01 103580 01 103580 02 103576 02 103577 01 103578 01 103579 01 101006 01 101330 05 101008 01 101007 01 100999 05 101331 08 098271 06 102445 01 098867 09 M11084 38 101011 02 098354 01 098462 03 098325 01 098508 01 102568 01 101005 01 M11084 26 101004 04 101004 08 102258 01 099387 08 098276 01 103042 01 098594 01 098593 01 098249 01 103580 03 103580 02 103576 03 103577 03 103578 03 103579 01 101006 01 101330 06 101008 01 101007 01 100999 06 101331 09 098271 06 102445 01 098867 09 M11084 38 101011 03 098354 01 098462 03 098325 01 098508 01 102568 01 101005 01 M11084 26 101004 05 101004 08 102258 01 099387 08 098276 01 103042 01 098594 01 098593 01 098249 01 Left Front Log 1L Right Front Log 1R Bottom Middle Log 2 Rear Log 3 Top Middle Log 4 Crossover Log 5 Pilot Bracket Front Burner Assembly Crossover Burner Gasket Crossover Burner Rear Burner Assembly Base Assembly Includes Decals Ignitor Cable Piezo Ignitor Gas Regulator Screw Inlet Tube Control Knob Control Rod Roll Pin Valve Retainer Nut Gas Valve Valve Bracket Screw Rear Burner Injector Front Burner Injector Burner Tube Pilot Tub
15. 1 101137 01 101137 01 Hardware Kit 101416 27 101416 27 101416 27 Information Video GA6060 GA6060 GA6060 Lava Rock seesaw nnn nnn nn nnn S e enn sn nnn nin Pon nga ann an in i 103426 27 UNVENTED NATURAL GAS LOG HEATER ILLUSTRATED PARTS Ee BREAKDOWN Variable Manually Controlled Models VL18NV VL24NV VL30NV 103426 SPLIT OAK AND AMERICAN OAK DESIGN 18 24 AND 30 MODELS PARTS LIST This list contains replaceable parts used in your heater When ordering parts follow the n instructions listed under Replacement Parts on page 22 of this manual Variable Manually Controlled T PR American Oak Models PART NUMBER FOR VL18NV VL24NV VL30NV DESCRIPTION 101337 01 101337 02 101337 03 Rear Log 1 101336 01 101336 02 101336 03 Front Log 2 101334 01 101335 01 101335 02 Crossover Log 3 101333 02 Front Branch 18 4 E 101332 01 101332 02 Left Front Branch 4 ES 101333 01 101333 01 Right Front Branch 5 101006 01 101006 01 101006 01 Pilot Bracket 101330 04 101330 05 101330 06 Front Burner Assembly 101008 01 101008 01 101008 01 Crossover Burner Gasket 101007 01 101007 01 101007 01 Crossover Burner 100999 04 100999 05 100999 06 Rear Burner Assembly 101331 10 101331 08 101331 09 Base Assembly Includes Decals 098271 07 098271 06 098271 06 Ignitor Cable 102445 01 102445 01 102445 01 Piezo Ignitor 098867 09 098867 09 098867 09 Gas Regulator M11084 38 M11084 38 M11084 38 Screw 101011 01 101011 02
16. 101011 03 Inlet Tube 098354 01 098354 01 098354 01 Control Knob 098462 03 098462 03 098462 03 Control Rod 098325 01 098325 01 098325 01 Roll Pin 098508 01 098508 01 098508 01 Valve Retainer Nut 102568 01 102568 01 102568 01 Gas Valve 101005 01 101005 01 101005 01 Valve Bracket M11084 26 M11084 26 M11084 26 Screw 101004 11 101004 04 101004 05 Rear Burner Injector 101004 11 101004 08 101004 08 Front Burner Injector 102258 01 102258 01 102258 01 Burner Tube 099387 08 099387 08 099387 08 Pilot Tube 098276 01 098276 01 098276 01 1 8 Plug 103042 01 103042 01 103042 01 O D S Pilot 27 1 098594 01 098594 01 098594 01 Ignitor Electrode 27 2 098593 01 098593 01 098593 01 Thermocouple 098249 01 098249 01 098249 01 Nut PARTS AVAILABLE NOT SHOWN 100563 01 100563 01 100563 01 Warning Plate 101055 02 101055 02 101055 02 Lighting Instructions Plate 100565 01 100565 01 100565 01 Warning Plate Fastener 100639 01 100639 01 100639 01 Caution Decal 101137 01 101137 01 101137 01 Hardware Kit 101416 27 101416 27 101416 27 Information Video GA6060 GA6060 GA6060 Lava Rock A a Cn aa N CC COR CC COR RO CORO Ce Coe CCC 103426 29 UNVENTED NATURAL GAS LOG HEATER NOTES SPLIT OAK AND AMERICAN OAK DESIGN 18 24 AND 30 MODELS NOTES WARRANTY INFORMATION KEEP THIS WARRANTY Model Serial No Date Purchased Always specify model and serial numbers when communicating with the factory We reserve
17. DESA INTERNATIONAL UNVENTED VENT FREE NATURAL GAS LOG HEATER Manually Control Models Also Designed Certified as Vented Decorative Appliance This appliance may be installed in an aftermarket manufactured mobile home where not prohibited by state or local codes Aftermarket Completion of sale not for purpose of resale from the manufacturer OWNER S OPERATION AND INSTALLATION MANUAL SPLIT OAK DESIGN 18 24 and 30 B Models Variable Manually Controlled and A Models Thermostatically Controlled WARNING If the information in this manual is not followed 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 build ing Immediately call your gas supplier from a neighbor s phone Follow the gas supplier s instructions If you cannot reach your gas sup plier call the fire department Installation and service must be per formed by a qualified installer service agency or the gas supplier 18 24 and 30 Variable Manually Controlled WARNING Improper installation ad justment alteration service or mainte nance can cause injury or property dam age Refer to this
18. ER TROUBLESHOOTING Note All troubleshooting items are listed in order of operation OBSERVED PROBLEM AX WARNING Turn off and un plug heater and let cool before servicing Only a qualified ser vice person should service and repair heater POSSIBLE CAUSE A CAUTION Never use a wire needle or similar object to clean ODS pilot This can damage ODS pilot unit REMEDY When ignitor button is pressed there is no spark at ODS pilot 1 2 do tA RR Ignitor electrode not connected to igni tor 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 Reconnect ignitor cable Free ignitor cable if pinched by any metal or tubing Keep ignitor cable dry Tighten nut holding piezo ignitor to base panel of log set Nut is located behind base panel Replace ignitor cable Replace piezo ignitor Replace ignitor Replace ignitor When ignitor button is pressed there is spark at ODS pilot but no ignition Uo Gas supply turned off or manual shutoff valve closed Control knob not in PILOT position Control knob not pressed in while in PI LOT position Airin gas lines when installed ODS pilot is clogged Gas regulator setting is not correct Turn on gas supply or open manual shutoff valve Turn control knob t
19. Hr used The space in the above example is a con fined space because the actual Btu Hr used is more than the maximum Btu Hr the space can support You 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 ventila tion grills between rooms See Ventila tion Air From Inside Building B Vent room directly to the outdoors See Ventilation Air From Outdoors C Install a lower Btu Hr heater if lower Btu Hr size makes room unconfined If the actual Btu Hr used is less than the maximum Btu Hr the space can support the spaceis an unconfined space You will need no additional fresh air ventilation WARNING Ifthearea in which the heater may be operated is smaller than that defined as an unconfined space provide ad equate combustion and ventila tion air by one of the methods described in the National Fuel Gas Code ANSI Z223 1 1992 Section 5 3 103426 18 24 AND 30 MODELS VENTILATION AIR Ventilation Air From Inside Building This fresh air would come from an adjoining unconfined space When ventilating to an adjoining unconfined space you must provide two permanent openings one within 12 of the ceiling and one within 12 oftheflooron the wall connecting the two spaces see options 1 and 2 Figure 3 You can also remove door into adjoining roo
20. K DESIGN 18 24 AND 30 MODELS INSTALLATION Continued INSTALLING LOGS Split Oak Design Models A WARNING Failure to posi tion 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 in jury Each log is marked with a number These numbers will help you identify the log when installing It is very important to install these logs exactly as instructed Do not modify logs Only use logs supplied with heater 1 Place front logs 1L and 1R on top of the grate Make sure the notches in the bottom of the logs fit over the grate prongs see Figure 21 page 12 Push back of logs flush with metal grate bar Note 18 model has only one front log 2 Rest bottom middle log 2 behind metal posts on front burner Make sure the grooves in the bottom of the log fit over the grate Bring the log forward next to the metal posts The pegs on the log must be on top see Figure 22 3 Slide the grooves in the back of the rear log 3 against the rear grate prongs Make sure the peg on the log is on top see Figure 23 4 Place the top middle log 4 on the bottom middle log 2 Make sure the pegs of the bottom middle log fit se curely in the holes of the top middle log see Figure 24 5 Place the crossover log 5 on the back log and the top middle log Make sure the peg on the rear log is in the hole in
21. LE MATERIALS above fireplace opening is not If not drafting may cause pilot Log Size 18 24 30 needed Go to Installing Damper outage or sooting Use a heat Side Wall 16 Clamp Accessory for Vented resistant sealant Do not seal n Operation page 8 Ceiling 42 chimney flue damper Floor 5 Minimum Non Combustible Ay WARNING Never install the LOG SIZING REQUIREMENTS M terial Clearances ina bedroom or bathroom un Log Minimum Firebox Size IE MOF using Mantel less installed as a vented ap Size Height Depth Front Width Note If using a mantel go to page 7 If not pliance see page 8 18 17 14 20 using a mantel follow the information on inarecreational vehicle 4 R 4 this page where curtains furniture 24 17 14 26 clothing or other flammable 30 17 14 30 You must have non combustible material s objects are less than 36inches above the fireplace opening Non combus tibl terial h late ble tile from the front top or sides of Carefully follow the instructions below This ai m T eet p B um Vos aan the heater will ensure safe installation into a masonry ins Pa heet metal th bustibl in high traffic areas or U L listed manufactured fireplace del s d AT aom v in windy ordraity areas Minimum Wall and Ceiling rial must extend at least 8 up for all mod els Ifnon combustible material is less than Clearances see Figure 5 12 you mus
22. OBLEM POSSIBLE CAUSE REMEDY One or both burners do not light after ODS pilot is lit 1 Inlet gas pressure is too low 2 Burner orifice s clogged 3 Mislocated crossover tube 4 Burner orifice s diameter is too small 1 Contact local natural gas company 2 Clean burner s see Cleaning and Main tenance page 17 or replace burner orifice s 3 Contact qualified service person 4 Replace burner orifice s Delayed ignition of one or both burners 1 Manifold pressure is too low 2 Burner orifice s clogged 3 Mislocated crossover tube 1 Contact local natural gas company 2 Clean burner s see Cleaning and Main tenance page 17 or replace burner orifice s 3 Contact qualified service person Burner backfiring during combustion 1 Burner orifice is clogged or damaged 2 Damaged burner 3 Gas regulator defective 1 Clean burner see Cleaning and Main tenance page 17 or replace burner ori fice 2 Replace damaged burner 3 Replace gas regulator Yellow flame in front burner during burner combustion 1 Not enough air 2 Gas regulator defective 1 Check burner s for dirt and debris If found clean burner s see Cleaning and Maintenance page 17 2 Replace gas regulator Slight smoke or odor during initial opera tion Residues from manufacturing processes and logs curing Problem will stop after a few hours of operation Heater produces a whistling noise
23. S8PT A VL24NT A VL24PT A VLI8NV VLI8PV VL24NV VL24PV VSI8NV B VS18PV B VS24NV A B VS24PV A B VSI8NT A VS 18PT A VS24NT A VS24PT A CFI8N P CF24N P CFI8NT A CFI8PT A CF24NT A CF24PT A CSI8NV B CSISPV B CS24NV A B CS24PV A B FB36CA FB42C SERIES CIRCULATING FB36NCA FB42NC SERIES NON CIRCULATING For all 18 and 24 models listed above plus the following 30 models VL30N P VL30NT A VL30PT A VL30NV VL30PV VS30NV A B VS30PV A B VS30NT A VS30PT A CF30N P CF30NT A CF30PT A CS30NV A B CS30PV A B DAMPER CLAMP GA6080 For manually controlled models Perma nently opens chimney flue damper for vented operation LAVA ROCK GA6060 For all models Order when additional rock is desired 3 Ib bag 23 UNVENTED NATURAL GAS LOG HEATER ILLUSTRATED PARTS BREAKDOWN Variable Manually Controlled Models VS18NVB CFS18NVB VS24NVB CFS24NVB VS30NVB CFS30NVB 24 103426 SPLIT OAK AND AMERICAN OAK DESIGN 18 24 AND 30 MODELS This list contains replaceable parts used in your heater When ordering parts follow the instructions listed under Replacement Parts on page 22 of this manual PARTS LIST Variable Manually Controlled Split Oak Models KEY PART NUMBER FOR NO VS18NVB CFS18NVB VS24NVB CFS24NVB VS30NVB CFS30NVB DESCRIPTION QTY 27 1 27 2 103580 04 103576 01 103577 02 103578 02 103579 02 101006 01 101330 04 1010
24. antel Heat Resistant Material Figure 6 Heat Resistant Material Slate Marble Tile etc Above Fireplace You must have non combustible material s above the fireplace opening Non combustible materials such as slate marble tile etc must be at least 1 2 inch thick With sheet metal you must have non combustible material behind it Non combustible material must extend at least 8 inches up for all models If non combustible material is less than 12 you must install the fireplace hood accessory 24 and 30 models only Even if non combustible material is more than 12 you may need the hood accessory to deflect heat away from your mantel shelf See chart below and Figures 7 and 8 page 8 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 Opera tion page 8 Non Combustible Requirements for Material Distance A Safe Installation 12 or more Between 8 and 12 Non combustible material OK 24 or 30 Models Install fireplace hood accessory GA6050 or GA6052 see Accessories page 23 18 Model Non combustible material OK Mantel Shelf Underside of A Mantel Shelf Less than 8 Non combustible material must be extended to at least 8 See Between 8 and 12 above If you cannot extend material you must operate heater si with
25. bing electrical and gas lines and at other openings If your home meets all of the three criteria above you must provide ad ditional fresh air See Ventilation Air From Outdoors page 5 If your home does not meet all of the three criteria above proceed to Deter mining Air Flow For Heater Location Confined and Unconfined Space The National Fuel Gas Code ANSIZ2 123 1 1992 Section 5 3 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 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 communicating directly with the space in which the appliances are in stalled 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 ventila tion grills between them DETERMINING AIR FLOW FOR HEATER LOCATION Determining if You Have a Confined or Unconfined Space Usethis 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
26. cles to pilot but room tempera ture drops to a lower than ideal level before log set comes back on Thermostat sensing bulb needs to be re positioned 20 Reposition thermostat sensing bulb see Instructions for Optional Positioning of Thermostat Sensing Bulb page 21 103426 SPLIT OAK AND AMERICAN OAK DESIGN 18 24 AND 30 MODELS OPTIONAL POSITIONING OF THERMOSTAT SENSING BULB For Masonry and Factory built Metal Fireplace If your log set cycles to pilot but the room temperature drops to a lower than ideal comfort level before the log set comes back on you may want to reposition the thermostat sensing bulb The thermostat sensing bulb is located on the gas valve assembly This location allows the thermostat to keep the room temperature at an ideal comfort level for most fireplace applications For position ing the thermostat sensing bulb elsewhere an adhesive backed mounting clip has been provided Tools needed 5 16 hex driver or socket 1 Locate the gas valve assembly and ther Gas Valve Assembly Thermostat Sensing Bulb Figure 34 Location of Gas Valve Assembly and Thermostat Sensing Bulb 2 The adhesive backed mounting clip see Figure 35 is attached to the ther mostat sensing bulb Remove the ad hesive backed mounting clip n Figure 35 Adhesive backed Mounting Clip 103426 3 With 5 16 hex driver or socket loosen the thermostat screw Carefully slide the th
27. codes Use pipe of 1 2 diameter or greater to allow proper gas volume to heater If pipe is too small undue loss of pressure will occur Installation must include a manual 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 heater see Figure 14 Apply pipe joint sealant lightly to male threads This will prevent excess sealant from going into pipe Excess sealant in pipe could result in clogged heater valves CAUTION Use pipe joint seal ant that is resistant to liquid pe troleum LP gas Install sediment trap in supply line as shown in Figure 14 Locate sediment trap where it is within reach for cleaning Locate sedi ment 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 A CAUTION Avoid damage to regulator Hold gas regulator with wrench when connecting itto gas piping and or fittings A G A Design Certified Manual Shutoff Valve With 1 8 NPT Tap From me LA Approved Flexible Gas a 5 wc ii Hose if allowed by local Pressure codes Gas Regulator a Tee Joint _N Pipe Nipple Cap Sediment Trap Purchase the optional A G A design certified manual shutoff valve from your dealer
28. 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 Ignitor Electrode Pilot Burner Thermocouple N Figure 29 Pilot 8 Push in and turn control knob coun terclockwise to the HIGH position Both burners should light Set con trol knob to desired setting 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 realistic flames and glow ing embers from two burners Selecting higher settings produces greater heat output This results in increased heating comfort H VARIABLE CONTROL A WARNING Do not operate heater between locked positions A CAUTION Do not try to ad just heating levels by using the manual shutoff valve TO TURN OFF GAS TO APPLIANCE Shutting Off Heater 1 Press in and turn control knob clock wise N to the HIGH position 2 Turn the control knob clockwise N to the PILOT position 3 Pressin control knob and turn clock wise to the OFF Position Shutting Off Burners Only pilot stays lit 1 Turn the control knob clockwise N to the HIGH position 2 Pressin and turn control knob clock wise to the pilot position 3 MANUAL LIGHTING PROCEDURE 1 Follow steps 1 through 5 under Light ing I
29. dle Log negated Left Front Branch Rear Piezo Burner Ignitor Front URS Burner pw D Bottom Right Front By X Middle Log Branch x Base Assembly Control Knob Figure 1 Split Oak Design Model Front Log Crossover Log Rear Log Left Front Branch Rear Piezo Ignitor Burner Base Assembly Right Front Branch Control Knob Figure 2 Standard Oak Design Model 103426 3 LOCAL CODES Install and use heater with care Follow all local codes In the absence of local codes use the latest edition of The National Fuel Gas Code ANSI Z223 also known as 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 UNPACKING 1 Remove logs and heater base assem bly from carton Note Do not pick up heater base assembly by burners This could damage heater Always handle base assembly by grate 2 Remove all protective packaging ap plied to logs and heater for shipment 3 Check all items for any shipping dam age If damaged promptly inform dealer where you bought heater 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 both realistic flames and glowing c
30. e 1 8 Plug O D S Pilot Ignitor Electrode Thermocouple Nut Rese See eo ap SH Been se mewn mn nw on 2 2 an i Ro oa ow a a a PARTS AVAILABLE NOT SHOWN 103426 100563 01 101055 02 100565 01 100639 01 101137 03 101416 27 GA6060 100563 01 101055 02 100565 01 100639 01 101137 03 101416 27 GA6060 100563 01 101055 02 100565 01 100639 01 101137 03 101416 27 GA6060 25 Warning Plate Lighting Instructions Plate Warning Plate Fastener Caution Decal Hardware Kit Information Video Lava Rock UNVENTED NATURAL GAS LOG HEATER ILLUSTRATED PARTS BREAKDOWN Thermostat Controlled Models VS18NTA VS24NTA VS30NTA 103426 SPLIT OAK AND AMERICAN OAK DESIGN 18 24 AND 30 MODELS PARTS LIST This list contains replaceable parts used in your heater When ordering parts follow the instructions listed under Replacement Parts on page 22 of this manual Thermostat Controlled Split d ER Oak Models PART NUMBER FOR NO VS18NTA VS24NTA VS30NTA DESCRIPTION QTY 103580 01 103580 03 Left Front Log 1L 103580 04 103580 02 103580 02 Right Front Log 1R 103576 01 103576 02 103576 03 Bottom Middle Log 2 103577 02 103577 01 103577 03 Rear Log 3 103578 02 103578 01 103578 03 Top Middle Log 4 103579 02 103579 01 103579 01 Crossover Log 5 M11084 26 M11084 26 M11084 26 Screw 103042 01 103042 01 103042 01 O D S Pilot 098594 01 098594 01 098594 01 Ignitor 098593 01
31. er may result in property damage or personal in jury Each log is marked with a number These numbers will help you identify the log when installing It is very important to install these logs exactly as instructed Do not modify logs Only use logs supplied with heater 1 Slide rear log 1 into place behind rear burner see Figure 17 2 Slide front log 2 into place behind front burner Make sure tabs at bottom of log are behind front burner see Fig ure 18 3 Place crossover log 3 into place see Figure 19 Be sure to place back of crossover log into notch on left side of rear log The indentation under front right fork of crossover log must rest on rectangular knob of front log 4 Place left front branch 4 and right front branch 5 24 and 30 mod els or front branch 4 18 model into place see Figure 20 Make sure notches on bottom rest on grates 5 Add lava rock around base of heater Front Log 2 Rear Log 1 Figure 18 Installing Front Log Crossover Left Front Branch 4 Log 8 24 amp 30 models or Front Branch 4 4 18 Model Notches Notches Z Right Front Branch 5 Figure 20 Installing Left Front Branch Figure 19 Installing Cr rL igure 19 Installing Crossover Log and Right Front Branch Front Log 1L Figure 21 Installing Front Logs 1L and 1R Continued 12 103426 SPLIT OAK AND AMERICAN OA
32. ermostat sensing bulb out of the retaining clamp see Figure 36 Note Do not remove the screw Make sure you tighten the screw after remov ing the thermostat sensing bulb IMPORTANT Do not force or bend the thermostat sensing bulb or capillary Screw Retaining Clamp Figure 36 Removing Thermostat Sensing Bulb 4 The thermostat sensing bulb may be located to the lower right front side of fireplace Determine location of sens ing bulb but do not mount sensing bulb until step 5 If you have a masonry fire place see Figure 37 for location Thermostat D Sensing Bulb n i Adhesive N o backed Mounting Clip Figure 37 Locating Thermostat Sensing Bulb on Masonry Fireplace If you have a factory built metal fireplace see Figure 38 for location Thermostat a ld Sensing Bulb m Iz Adhesive lis backed Mounting RS Clip A Figure 38 Locating Thermostat Sensing Bulb on Factory built Metal Fireplace 21 If your fireplace has glass doors position sensing bulb directly behind door gap on right bottom side see Figure 39 Thermostat Sensing i Bulb Adhesive a backed Mounting Clip Glass Doors Figure 39 Installing Thermostat Sensing Bulb behind Glass Doors 5 Themounting clip must be a minimum of 3 from bottom of fireplace to pre vent crimping of capillary Once you have decided on a locat
33. h 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 technician 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 to replace any part of the control system and any gas control which has been un der water EH 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 Also if fireplace opening has vents at the bottom you must open the vents before operating heater You must operate this heater with afireplace screenin 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 present Open damper or window to vent smell This will only last a few hours Note Homeowners generally prefer to operate 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 chim ney damper if you have one full
34. has an oxygen depletion sensor ODS pi lot light safety system The ODS shuts down the heater if not enough fresh air is available See Air for Combustion and Ventilation pages 4 and 5 If heater keeps shutting off see Troubleshoot ing pages 18 through 20 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 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 Carefully supervise young children when they are in the room with heater 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 wa ter Do not operate heater if any log is bro ken Do not operate heater if a log is chipped dime sized or larger Turn heater off and let cool before ser vicing Only a qualified service person should service and repair heater Operating heater above elevations of 4 500 feet may cause pilot outage 103426 SPLIT OAK AND AMERICAN OAK DESIGN 18 24 AND 30 MODELS PRODUCT IDENTIFICATION __ Crossover Log Top Mid
35. hipping Weight 26 lbs 30 lbs 34 lbs SERVICE HINTS When gas pressure is too low pilot will not stay lit burners will have delayed ignition heater will not produce specified heat When gas quality is bad pilot will not stay lit burners will produce flames and soot heater will backfire when lit You may feel your gas pressure is too low or gas quality is bad If so contact your local natural gas supplier TECHNICAL SERVICE You may have further questions about in stallation operation or troubleshooting If so contact DESA International s Techni cal Service Department at 1 800 DESA LOG 1 800 337 2564 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 International s Techni cal Service Department at 1 800 323 5190 When calling DESA International have ready your name your address model number of your heater how heater was malfunctioning typeof gas used propane or natural gas purchase date Usually we will ask you to return the defec tive 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 International s Parts Department at 1 800 972 7879 for referral
36. ion 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 verti cally with the capillary at the bottom see Figure 40 Slide the thermostat sensing bulb into the clip IMPORTANT Do not crimp capillary Thermostat Sensing Bulb Adhesive backed Mounting Clip Capillary Do Not Crimp Capillary Figure 40 Positioning the Thermostat Sensing Bulb in the Vertical Position with the Capillary at the Bottom UNVENTED NATURAL GAS LOG HEATER SPECIFICATIONS 18 Thermostat 24 Thermostat 30 Thermostat Controlled Controlled Controlled Btu Variable 16 000 26 000 20 000 33 000 21 500 36 000 Type Gas Natural Gas Only Natural Gas Only Natural Gas Only Ignition Piezo Piezo Piezo Manifold Pressure 3 4 W C 3 4 W C 3 4 W C Inlet Gas Pressure in of water Maximum 10 5 10 5 10 5 Minimum 5 5 5 For purpose of input adjustment Shipping Weight 26 lbs 30 Ibs 34 lbs 18 Variable 24 Variable 30 Variable Manually Manually Manually Controlled Controlled Controlled Btu Variable 16 000 26 000 20 000 33 000 21 500 36 000 Type Gas Natural Gas Only Natural Gas Only Natural Gas Only Ignition Piezo Piezo Piezo Manifold Pressure 3 4 W C 3 4 W C 3 4 W C Inlet Gas Pressure in of water Maximum 10 5 10 5 10 5 Minimum 5 5 al For purpose of input adjustment S
37. lve located on or near gas meter 103426 3 4 Check all joints from gas meter to manual shutoff valve see Figure 16 Apply mixture of liquid soap and wa ter to gas joints Bubbles forming show a leak Correct all leaks at once Pressure Testing Heater Gas Connections 1 Manual Shutoff Valve Open manual shutoff valve see Fig ure 15 Open main gas valve located on or near gas meter Make sure control knob of heater is in the OFF position Closed Figure 15 Manual Shutoff Valve Manual Shutoff Valve Gas Meter Check all joints from manual shutoff valve to thermostat gas valve thermo stat controlled models or control valve manually controlled models see Fig ure 16 Apply mixture of liquid soap and water to gas joints Bubbles form ing show a leak Correct all leaks at once Light heater see Operating Heater pages 14 through 16 Check all other internal joints for leaks Turn off heater see To Turn Off Gas to Appliance page 15 thermostat controlled models or page 16 manu ally controlled models Thermostat Gas Valve or Control Valve Location Figure 16 Checking Gas Joints Continued UNVENTED NATURAL GAS LOG HEATER INSTALLATION Continued INSTALLING LOGS American Oak Design Models Ay WARNING Failure to posi tion the parts in accordance with these diagrams or failure to use only parts specifically approved with this heat
38. m see option 3 Figure 3 Follow the National Fuel Gas Code NFPA 54 ANSI Z223 1 Section 5 3 Air for Combustion and Ventilation for required size of ventilation grills or ducts A WARNING Rework worksheet adding the space of the adjoining unconfined space The combined spaces must have enough fresh air to supply all appliances in both spaces I NN A A M Ventilation Rene Grills Ventilation Grills Into Adjoining Or Into Adjoining Room fom Remove al Door into Adjoining Room Option O 3 Figure 3 Ventilation Air from Inside Building Ventilation Air 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 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 EEN Ventilated Attic Outlet J Air i To Attic To Crawl ES m Inlet Air I Ventilated Inlet Air Crawl Space Figure 4 Ventilation Air from Outdoors 5 UNVENTED NATURAL GAS LOG HEATER K INSTALLATION IMPORTANT Vent free heaters add mois ture to the air Although thi
39. manual for correct installation and operational procedures For assistance or additional informa tion consult a qualified installer ser vice agency or the gas supplier WARNING This gas log set is for instal lation in a masonry solid fuel burning fireplace a U L listed manufactured solid fuel burning fireplace or an AGA design certified vent free firebox or stove in cluding LogMate Series listed for use with these gas log models 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 ven tilation air must be provided Refer to Air for Combustion and Ventilation section in this manual Save this manual for future reference UNVENTED NATURAL GAS LOG HEATER SAFETY INFORMATION A WARNINGS IMPORTANT Read this owner s manual carefully and completely before trying to assemble oper ate or service this heater Im proper use of this heater can cause serious injury or death from burns fire explosion electrical shock and carbon monoxide poisoning AX DANGER Carbon monoxide poisoning may lead to death Carbon Monoxide Poisoning Early signs of carbon monoxide poisoning re semble the flu with headaches 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 o
40. nstall the damper clamp accessory to order see Accessories page 23 This will insure vented operation see Figure 11 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 6 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 Damper d S Damper Damper Masonry Fireplace N Damper Manufactured Fireplace Figure 11 Attaching Damper Clamp Continued 103426 SPLIT OAK AND AMERICAN OAK DESIGN 18 24 AND 30 MODELS INSTALLATION Continued INSTALLING HEATER BASE ASSEMBLY A 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 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 Raise fireplacefloor with noncombus tible material Make sure mate rial is secure Flexible Gas Hose if allo
41. nstructions page 15 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 above INSPECTING BURNERS Check pilot flame pattern and burner flame patterns often PILOT FLAME PATTERN Figure 30 shows a correct pilot flame pat tern Figure 31 shows an incorrect pilot flame pattern The incorrect pilot flame is not touching the thermocouple This will cause the thermocouple to cool When the thermocouple cools the heater will shut down Thermocouple Pilot Burner Figure 30 Correct Pilot Flame Pattern Thermocouple Pilot Burner Figure 31 Incorrect Pilot Flame Pattern If pilot flame pattern is incorrect as shown in Figure 31 turn heater off see To Turn Off Gas to Appliance page 15 thermostat controlled models or page 16 manually controlled models see Troubleshooting pages 18 through 20 Continued 103426 SPLIT OAK AND AMERICAN OAK DESIGN 18 24 AND 30 MODELS INSPECTING BURNERS Continued FRONT BURNER FLAME PATTERN Figure 32 shows correct front burner flame pattern Figure 33 shows incorrect front burner flame pattern The incorrect burner flame pattern shows yellow tipping at top of blue flame A WARNING If yellow tipping occurs your heater could pro duce increased levels of carbon monoxide If front burner flame pattern shows yellow tip
42. o PILOT position Press in control knob while in PILOT position Continue holding down control knob Repeat igniting operation until air is re moved Clean ODS pilot see Cleaning and Maintenance page 17 or replace ODS pilot assembly Replace gas regulator ODS pilot lights but flame goes out when control knob is released DEN Control knob not fully pressed in Control knob not pressed in long enough Safety interlock system has been trig gered Manual shutoff valve not fully open Pilot flame not touching thermocouple which allows thermocouple to cool causing pilot flame to go out This prob lem 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 2 After ODS pilot lights keep control knob pressed in 30 seconds Waitone minute for safety interlock sys tem to reset Repeat ignition operation Fully open manual shut off valve A Contact local natural gas company B Clean ODS pilot see Cleaning and Maintenance page 17 or replace ODS pilot assembly Hand tighten until snug then tighten 1 4 turn more Replace thermocouple Replace control valve Continued 103426 SPLIT OAK AND AMERICAN OAK DESIGN 18 24 AND 30 MODELS TROUBLESHOOTING Continued OBSERVED PR
43. oals This heater is designed for vent free opera tion with flue damper closed State and local codes in some areas prohibit the use of vent free heaters You can operate heater as a vented product by opening flue damper Safety Device This heater has a pilot with an Oxygen Depletion Sensor Shutoff System ODS 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 requires no matches batteries or other sources to light heater UNVENTED NATURAL GAS LOG HEATER AIR FOR COMBUSTION AND VENTILATION A WARNING This heater shall not be installed in a confined space unless provisions are pro vided for adequate combustion and ventilation air Read the fol lowing instructions to insure proper fresh air for this and other fuel burning appliances in your home Today s homes are built more energy effi cient than ever New materials increased insulation and new construction methods help reduce heat loss in homes Home own ers 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 pos sible While it is good to make your home energy efficient your home needs to breathe Fresh air must enter your home All fuel burning appliances need fresh air for proper com
44. ping fol low instructions at bottom of this page Yellow flame on rear burner is normal NOTICE Do not mistake orange flames with yellow tipping Dirt or other fine particles are burned by heater causing brief patches of orange flame n CORRECT FLAME PATTERN AT HIGH POSITION Figure 32 Correct Front Burner Flame Pattern NCORRECT FLAME PATTERN AT HIGH POSITION Figure 33 Incorrect Front Burner Flame Pattern If front burner flame pattern is incorrect as shown in Figure 33 turn heater off see To Turn Off Gas to Appliance page 15 thermostat controlled models or page 16 manually controlled models see Troubleshooting pages 18 through 20 103426 CLEANING AND MAINTENANCE A WARNING Turn off heater and let cool before cleaning A CAUTION You must keep control areas burners and cir culating air passageways of heater clean Inspect these areas of heater before each use Have heater inspected yearly by a quali fied service person Heater may need more frequent cleaning due to excessive lint from carpeting bedding material etc ODS PILOT AND BURNERS Use a vacuum cleaner or small soft bristled brush to clean LOGS f you remove logs for cleaning re fer to Installing Logs page 12 to properly replace logs Replace log s if broken or chipped dime sized or larger Yellow Tipping At Top of Blue Flame UNVENTED NATURAL GAS LOG HEAT
45. proper 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 INCLUDING WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE TO THREE 3 YEARS ON ALL COMPO NENTS AND FIVE 5 YEARS ON STAINLESS STEEL BURNERS FROM THE DATE OF FIRST PURCHASE AND DESA INTERNATIONAL S LIABILITY IS HEREBY LIMITED TO THE PURCHASE PRICE OF THE PRODUCT AND DESA INTERNATIONAL 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 write DES A INTERNATIONAL 2701 Industrial Drive 103426 01 P O Box 90004 NOT A UP Bowling Green KY 42102 9004 re 103426 01 Rev C 09 97
46. s is beneficial NOTICE A qualified service per installing heater in rooms without enough son must install heater Follow ventilation air may cause mildew to form all local codes from too much moisture See Air for Com bustion and Ventilation pages 4 and 5 NOTICE State or local codes may CHECK GAS TYPE only allow operation ofthis appli ance in a vented configuration Check your state or local codes Use only natural gas If your gas supply is not natural do not install heater Call dealer where you bought heater for proper type A heater in a solid fuel burning fireplace INSTALLATION AND the chimney flue and firebox must CLEARANCES be cleaned of soot creosote Vent Free Operation Only ashes and loose paint by a quali RE i Figure 5 Minimum Clearance to Wall and fied chimney cleaner Creosote A WARNING Maintain the mini Ceiling will ignite if highly heated In mum clearances If you can pro spect chimney flue for damage If vide greater clearances from damaged operate heater with flue floor ceiling and adjoining wall NOTCE Manual control esters may be used as a vented product Samperclossd If so you must always run heater MINIMUM FIREPLACE with chimney flue damper open A WARNING Seal any fresh air CLEARANCE TO If running iol et camper vents or ash clean out doors lo open noncombustible materia cated on floor or wall of fireplace COMBUSTIB
47. setting with the control knob will cause the burner to remainfully on without modulating down in most cases uH MANUAL LIGHTING PROCEDURE 1 Follow steps 1 through 5 under Light ing Instructions page 14 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 page 14 103426 OPERATING HEATER Manually Controlled Models FOR YOUR SAFETY READ BEFORE LIGHTING A WARNING If you do not fol low these instructions exactly a fire or explosion may result caus ing property damage personal injury or loss of life A This appliance has a pilot which must be lighted by hand When lighting the pilot follow these instructions ex actly B 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 build ing Immediately call your gas supplier from a neighbor s phone Follow the gas supplier s instructions If you cannot reach your gas sup plier call the fire department C Useonly 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
48. t install the fireplace hood A CAUTION This heater cre ates warm air currents These A Clearances from the side of the fire accessory 24 and 30 models only See currents move heat to wall sur place opening to any combustible Wall chart on page 7 column 1 and Figure 5 for faces next to heater Installing should not be less than 16 inches minimum clearances heater next to vinyl or cloth wall B Clearances from the top of the fireplace IMPORTANT If you cannot meet these coverings or operating heater opening to the ceiling should not be less minimum clearances you must operate heater with chimney flue damper open Go to Installing Damper Clamp Accessory for Vented Operation page 8 where impurities in the air Such than 42 inches as tobacco smoke exist may discolor walls Continued 6 103426 SPLIT OAK AND AMERICAN OAK DESIGN 18 24 AND 30 MODELS INSTALLATION Continued Non Combustible Material Distance A Requirements for Safe Installation 12 or more Between 8 and 12 Less than 8 Non combustible material OK 24 or 30 Models Install fireplace hood accessory GA6050 or GA6052 see Accessories page 23 18 Model Non combustible material OK Noncombustible material must be extended to at least 8 See Between 8 and 12 above If you cannot extend material you must operate heater with flue damper open Minimum Non Combustible Material Clearances If Using M
49. thers 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 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 heater WARNING Any changetothis heater or its controls can be dan gerous 1 This appliance is only for use with the type of gas indicated on the rating plate 2 This appliance is not convertible for use with other gases 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 build ing 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 This heater shall not be installed in a bed room or bathroom unless installed as a vented appliance Variable Manually Controlled models only see page 8 Never install the heater in a recreational vehicle where curtains furniture clothing or other flammable objects are less than 36inches from the front top or sides of the heater in high traffic areas in windy or draft
50. trol 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 This heater has a safety interlock system Wait one 1 minute for system to reset before lighting pilot again Ignitor Electrode SLOP UPI as _ Pilot Burner Figure 27 Pilot 8 Turn control knob counterclockwise K to desired heating level The burners should light Set control knob to any heat level between HI and LO Continued 103426 SPLIT OAK AND AMERICAN OAK DESIGN 18 24 AND 30 MODELS OPERATING HEATER Thermostat Controlled Models Continued A CAUTION Do not try to ad just heating levels by using the manual shutoff valve m TO TURN OFF GAS TO APPLIANCE Shutting Off Heater 1 Turn control knob clockwise N to the OFF position Shutting Off Burners Only pilot stays lit 1 Turn control knob clockwise N to the PILOT position THERMOSTAT CONTROL OPERATION Thermostat Controlled Models Only The thermostat control knob can be set to any comfort level between Hi and Lo The thermostat 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
51. wed by local codes A CAUTION Do not remove the metal data plates attached to the heater base assembly The data plates contain important warranty information 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 burn ers 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 Installation Items Needed hardware package provided with heater approved flexible gas hose not pro vided if allowed by local codes sealant resistant to LP gas not pro vided electric drill with 3 16 masonry drill bit 103426 Mounting Bracket Screw Apply pipe joint sealant lightly to male threads of gas fitting not provided Connect approved flexible gas hose to gas regulator of heater see Figure 12 IMPORTANT Hold gas regulator with wrench when connecting flexible gas hose Locate mounting brackets bolts and nuts in hardware package Attach mounting brackets to heater base see Figure 13 Attach nuts finger tight Position heater base assembly in fire place Mounting Bracket Nut Figure 13 Attaching Heater to Fireplace Floor 9 Mark screw locations through holes in mounting brackets If installing in a brick bottom
52. when burners are lit 1 Turning control knob to HI position when burners are cold 2 Airin 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 lo cal natural gas company 3 Observe minimum installation clear ances see pages 6 8 4 Clean burners see Cleaning and Main tenance page 17 or replace burner orifice s Moisture condensation noticed on windows 103426 1 Not enough combustion ventilation air 1 Refer to Air for Combustion and Venti lation requirements page 4 Continued UNVENTED NATURAL GAS LOG HEATER TROUBLESHOOTING Continued building A 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 Follow 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
53. y areas Before installing in a solid fuel burn ing fireplace the chimney flue and fire box 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 operate heater with flue damper closed If fireplace has glass doors never op erate this heater with glass doors closed If you operate heater with doors closed heat buildup inside fireplace will cause glass to burst Also if fireplace open ing has vents at the bottom you must open the vents before operating heater You must operate this heater with a fire place screen in place Make sure fire place screen is closed before running heater This log heater is designed to be smoke less If logs ever appear to smoke turn off heater and call a qualified service person Note During initial operation slight smoking may occur due to log curing and heater burning manufactur ing residues Do not allow fans to blow directly into the fireplace Avoid any drafts that al ter burner flame patterns Ceiling fans 10 11 12 13 14 15 16 17 18 19 20 may create drafts that alter burner flame patterns Altered burner patterns can cause sooting Do not use a blower insert heat ex changer insert or other accessory not approved for use with this heater This heater needs fresh outside air ven tilation to run properly This heater
54. y 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 above 2 Make sure manual shutoff valve is fully open 3 Turn control knob clockwise w tothe OFF position Ignitor Button Control Knob Figure 26 Control Knob and Ignitor Button Location 4 Waitfive 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 in formation above If you don t smell gas go to the next step 5 Turn control knob counterclockwise FK to the PILOT position Press in control knob for five 5 sec onds see above Note You may be running this heater for the first time after hook ing up to gas supply If so the con trol knob may need to be pressed in for 30 seconds or less This will allow air to bleed from the gas system 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 press ing ignitor button until pilot lights Note If pilot does not stay lit con tact a qualified service person or gas supplier for repairs Until repairs are made light pilot with match To light pilot with match see Manual Light ing Procedure on page 15 7 Keep control knob pressed in for 30 seconds after lighting pilot After 30 seconds release control knob f con
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