Desa CGD3018N User's Manual
Contents
1. 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 Masonry Fireplace Manufactured Fireplace Figure 10 Attaching Damper Clamp Continued 102990 INSTALLING Continued INSTALLING HEATER BASE ASSEMBLY 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 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 soot ing Raise fireplace floor with non combustible material Make sure material is secure CAUTION Do not pick up heater base assembly by the burner This could damage heater Only handle base assembly by grates IMPORTANT Make sure the heater burners are level If heater is not level heater will not work properly For thermostat models avoid damage to thermostat bulb Avoid nicks or sharp bends in thermostat bulb wire Keep thermostat bulb in mounting bracket Installation Items Needed e hardware package provided with heater e approved flexible gas hose not provided if2. release control knob Now follow step 8 page 23 Check pilot flame pattern and burner flame patterns often PILOT FLAME PATTERN Figure 24 shows a correct pilot flame pattern Figure 25 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 Thermocouple A Pilot Burner Figure 24 Correct Pilot Figure 25 Incorrect Pilot Flame Pattern Flame Pattern If pilot flame pattern is incorrect as shown in Figure 25 e turn heater off see To Turn Off Gas to Appliance page 21 manually con trolled models or above thermostat controlled model e see Troubleshooting pages 25 through 28 102990 C LEANI NG WARNI NG AND Turn off heater and let cool before cleaning MAINTENANCE CAUTION You must keep control areas burner and circulating air passage ways of heater clean Inspect these areas of heater before each use Have heater inspected yearly by a qualified service person Heater may need more frequent cleaning due to excessive lint from carpeting bedding material etc ODS PILOT AND BURNER Use a vacuum cleaner or small soft bristled brush to clean LOGS If you remove logs for cleaning refer to Installing Logs page 19 to properly replace logs e Replace log s if broken or chipped dime sized or larger SHOOTI
3. CHECK GAS TYPE Use only natural gas If your gas supply is not natural gas do not install heater Call dealer where you bought heater for proper type heater 102990 INSTALLING Continued INSTALLATION AND CLEARANCES Vent Free Operation Only WARNING Maintain the minimum clearances If you can provide greater clear ances from floor ceiling and adjoining wall MINIMUM FIREPLACE CLEARANCE TO COMBUSTIBLE MATERIALS Log Size Side Wall Ceiling 1 8 24 30 1 6 42 LOG SIZING REQUIREMENTS Log Minimum Firebox Size Size Height Depth Front Width 18 17 14 20 24 17 14 26 30 17 14 32 Carefully follow the instructions below This will ensure safe installation into a masonry or U L listed manufactured fireplace Minimum Wall and Ceiling Clearances see Figure 4 A Clearances from the side of the fireplace opening to any combustible wall should not be less than 16 inches B Clearances from the top of the fireplace opening to the ceiling should not be less than 42 inches Left and Right Sides Figure 4 Minimum Clearance to Wall and Ceiling Continued 102990 INSTALLING Continued NOTICE You may use this heater as a vented product If so you must always run heater with chimney flue damper open If running heater with damper open non combustible material above fire place opening is not needed Go to Instal
4. t supply original replace ment part s call DESA International s Technical Service Department at 1 800 DESA LOG 1 800 337 2564 When calling DESA International have ready e your name e your address e model number of your heater e how heater was malfunctioning e type of gas used propane or natural gas e purchase date Usually we will ask you to return the defective part to the factory Parts Not Under Warranty Contact authorized dealers of this product If they can t supply original replace ment part s call DESA International s Parts Department at 1 800 972 7879 for referral information When calling DESA International have ready e model number of your heater e the replacement part number These Parts Centrals are privately owned businesses They have agreed to support our customer s needs by providing original replacement parts and accessories Baltimore Electric 1348 Dixwell Avenue Hamden CT 06514 1 800 397 7553 203 248 7553 Parts Department Portable Heater Parts 342 N County Rd 400 East Valparaiso IN 46383 All States 219 462 7441 1 800 362 6951 FBD P O Box 1096 Franklin KY 42134 502 586 1922 1 800 654 8534 Four Flags Power Products 1115 Stateline Road Niles MI 49120 616 684 2697 Parts Only Master Service Center 1184 Wilson NW Walker MI 49504 616 791 4760 1 800 446 1446 Washer Equipment Co 1715 Main Street Kansas City MO 64108 KS MO AR 816 842 3911 Ea
5. codes may only allow operation of this appliance in a vented configuration Check your state or local codes WARNING Before installing in a solid fuel burning fireplace the chimney flue and firebox must be cleaned of soot creosote ashes and loose paint by a qualified chimney cleaner Creosote will ignite if highly heated Inspect chimney flue for damage If damaged operate heater with flue damper closed WARNING Seal any fresh air vents or ash clean out doors located on floor or wall of fireplace If not drafting may cause pilot outage or sooting Usea heat resistant sealant Do not seal chimney flue damper WARNING Never install the heater in a bedroom or bathroom in a recreational vehicle where curtains furniture clothing or other flammable objects are less than 36 inches from the front top or sides of the heater in high traffic areas e in windy or drafty areas CAUTION This heater creates warm air currents These currents move heat to wall surfaces next to heater Installing heater next to vinyl or cloth wall coverings or operating heater where impurities in the air such as tobacco smoke exist may discolor walls IMPORTANT Vent free heaters add moisture to the air Although this is benefi cial installing heater in rooms without enough ventilation air may cause mildew to form from too much moisture See Air for Combustion and Ventilation pages 5 through 7
6. inspect the appliance and to replace any part of the control system and any gas control which has been under water GEE LIGHTING INSTRUCTIONS M A WARNING e If fireplace has glass doors never operate this heater with glass doors closed If you operate heater with doors closed heat buildup inside fireplace will cause glass to burst Also if fireplace opening has vents at the bottom you must open the vents before operating heater You must operate this heater with a fireplace screen in place Make sure fireplace screen is closed before running heater NOTICE During initial operation of new heater burning logs will give off a paper burning smell Orange flame will also be 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 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 102990 OPERATING HEATER Thermostatically Controlled Model Continued 1 STOP Read the safety information above 2 Make sure manual shutoff valve is fully open 3 Turn control knob clockwise AX to the OFF position Contro
7. the fireplace Avoid any drafts that alter burner flame patterns Ceiling fans can create drafts that alter burner flame patterns Altered burner patterns can cause sooting 10 Do not use a blower insert heat exchanger insert or other accessory not approved for use with this heater 11 This heater needs fresh outside air ventilation torun properly This heater has an oxygen depletion sensor ODS pilot light safety system The ODS shuts down the heater if not enough fresh air is available See Air for Combustion and Ventilation pages 5 through 7 If heater keeps shutting off see Troubleshooting pages 25 through 28 12 Do not run heater e where flammable liquids or vapors are used or stored e under dusty conditions 13 Do not use this heater to cook food or burn paper or other objects 14 Never place any objects on the heater 15 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 shut down Allow surface to cool before touching 16 Carefully supervise young children when they are in the room with heater 17 Do not use heater if any part has been exposed to or under water Immediately call a qualified service technician to inspect the room heater and to replace any part of the control system and any gas control which has been under water 18 Donot operate heater if any log is broken Do not operate heate
8. trapped matter is not likely to freeze A sediment trap traps moisture and contami nants This keeps them from going into heater controls If sediment trap is not installed or is installed wrong heater may not run properly 102990 INSTALLING Continued CAUTION Avoid damage to regulator Hold gas regulator with wrench when connecting it to gas piping and or fittings A G A Design Certified Manual Shutoff Valve From With 1 8 NPT Tap Gas Meter Approved Flexible 5 W C to Gas Hose if allowed 10 5 W C by local codes Pressure Gas N Regulator Tee Joint _ Pipe G aai Nipple 3 Minimum Cap Sediment Trap Figure 13 Gas Connection Purchase the optional A G A design certified manual shutoff valve from your dealer See Accessories page 33 Minimum inlet pressure for purpose of input adjustment CHECKING GAS CONNECTIONS WARNING Test all gas piping and connections for leaks after installing or servicing Correct all leaks at once 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 1 Disconnect heater and its individual manual shutoff valve from gas supply piping system Pressures in excess of 1 2 psig will damage heater regulator 2 Cap off open
9. 01 098249 01 099553 01 Back Log 1 Middle Log 2 Front Log 8 Crossover Log 4 Painted Base Assembly Lower Bracket Upper Bracket Gas Regulator Inlet Tube Outlet Burner Tube Burner Orifice Injector Burner Clip Burner Control Valve Valve Retainer Nut Control Knob Piezo Ignitor Pilot Tube Ignitor Cable ODS Pilot Ignitor Electrode Thermocouple Regulator Screw Black Screw PPH 8 18 Hex Head Plug 1 8 NPT Nut M5 Pilot Shield PARTS AVAILABLE NOT SHOWN 100563 01 101055 02 100565 01 100639 01 101449 04 101137 02 101416 18 GA6060 100563 01 101055 02 100565 01 100639 01 101449 04 101137 02 101416 18 GA6060 Warning Plate Lighting Instructions Plate Warning Plate Fastener Caution Decal Control Position Decal Hardware Kit Information Video Lava Rock non ff Bees eae one on ae oon one on oa oo ae 102990 ILLUSTRATED PARTS BREAKDOWN Thermostatically Controlled Manuals G CGD3924NT 102990 p A RTS LIST This list contains replaceable parts used in your heater When ordering parts follow the instructions listed under Replacement Parts on page 33 of this manual CGD3924NT PART NUMBER DESCRIPTION 103008 01 103009 01 103010 01 103011 01 102774 05BR 102844 01 102966 01 098867 11 102981 01 102983 01 099056 16 102843 01 102772 01 101329 20 102979 01 098544 01 102445 01 099387 09 09827 1 07 103042 01 0
10. 5 3 Air for Combustion and Ventilation for required size of ventilation grills or ducts 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 SSS Z I SS Sk SS el eee T Ventilation M Grills Ventilation Grills Into Adjoining Or Into Adjoining Room ram Remove Option 2 pion Door into Adjoining Room Option 3 ia BS E 7 E ACRE ee Figure 2 Ventilation Air from Inside Building Ventilation Air From Outdoors Provide extra fresh air by using ventilation grills or ducts You must provide two perma nent 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 EN Ventilated Outlet Air Attic Ouilet Air To Attic ECSS To Crawl A Space Inlet A Air Ventilated Ha Crawl Space Figure 3 Ventilation Air from Outdoors 102990 INSTALLING NOTICE A qualified service person must install heater Follow all local codes NOTICE State or local
11. 99594 01 098593 01 M11084 38 098304 03 099553 01 098249 01 099211 01 ONoOaARWD PARTS AVAILABLE NOT SHOWN 100563 01 101054 01 100565 01 100639 01 101137 02 101416 18 GA6060 Back Log 1 Middle Log 2 Front Log 3 Crossover Log 4 Painted Base Assembly Lower Bracket Upper Bracket Gas Regulator Inlet Tube Outlet Burner Tube Burner Orifice Injector Burner Clip Burner Thermostat Gas Valve Assembly Thermostat Bracket Thermobulb Clip Piezo Ignitor Pilot Tube Ignitor Cable ODS Pilot Ignitor Electrode Thermocouple Regulator Screw Black Screw PPH 8 18 Pilot Shield Nut M5 Hex Screw 10 16 x 2 50 Warning Plate Lighting Instructions Plate Warning Plate Fastener Caution Decal Hardware Kit Information Video Lava Rock PO S Sse Sa on on on on on om on on on on on on on 41 1 4 au mM 102990 NOTES 102990 NOTES 102990 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 app
12. Burner Figure 23 Pilot 8 Turn control knob counterclockwise y to desired heating level The burners should light Set control knob to any heat level between HI and LO CAUTION Do not try to adjust heating levels by using the manual shutoff valve Continued 102990 OPERATING HEATER Thermostatically Controlled Model Continued INSPECTING BURNERS GR TO TURN OFF GAS TO APPLIANCE D Shutting Off Heater 1 Turn control knob clockwise to the OFF position Shutting Off Burners Only pilot stays lit 1 Turn control knob clockwise N to the PILOT position B THERMOSTAT CONTROL OPERATION B 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 setting with the control knob will cause the burner to remain fully on without modulating down in most cases BESA MANUAL LIGHTING PROCEDURE M Follow steps 1 through 5 under Lighting Instructions page 23 2 Depress control knob and light pilot with match 3 Keep control knob pressed in for 30 seconds after lighting pilot After 30 seconds
13. Conyorc Gow YELLOW FLAME DESIGN UNVENTED VENT FREE NATURAL GAS LOG HEATER Manually Controlled 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 This appliance is only for use with the type of gas indicated on the rating plate This appliance is not convertible for use with other gases Aftermarket Completion of sale not for purpose of resale from the manufacturer OWNER S OPERATION AND INSTALLATION MANUAL 18 24 and 30 Variable Manually Controlled Models CGD3018N CGD3924N CGD3930N 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 e 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 24 Thermostatically Controlled Model CGD3924NT WARNING Improper in
14. DURE ME Follow steps 1 through 5 under Lighting Instructions pages 20 and 21 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 on page 21 N Ml FOR YOUR SAFETY READ BEFORE LIGHTING E A WARNING If you do not follow these instructions exactly a fire or explosion may result causing 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 exactly 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 e 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 If you cannot reach your gas supplier call the fire department C Use only your hand to push in or turn the gas control knob Never use tools If the knob will not push in or turn by hand don t try to repair it call a qualified service 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
15. NG Turn off and unplug heater and let cool before servicing Only a qualified service person should service and repair heater Note All troubleshoot ing items are listed in order of operation CAUTION Never use a wire needle or similar object to clean ODS pilot This can damage ODS pilot unit OBSERVED POSSIBLE PROBLEM CAUSE REMEDY When ignitor button 1 Ignitor electrode not con 1 Reconnect ignitor cable is pressed there is nected to ignitor cable no spark at ODS 2 Ignitor cable pinched or 2 Free ignitor cable if pilot wet pinched by any metal or tubing Keep ignitor cable dry 3 Piezo ignitor nut is loose 3 Tighten nut holding piezo ignitor to base panel of log set Nut is located behind base panel Replace ignitor cable Replace piezo ignitor Replace piezo ignitor Replace piezo ignitor Continued Broken ignitor cable Bad piezo ignitor Ignitor electrode broken Ignitor electrode posi tioned wrong NYDN NYDAMN A 102990 TROUBLE SHOOTING Continued OBSERVED POSSIBLE PROBLEM CAUSE REMEDY When ignitor button 1 Gas supply turned off or 1 Turn on gas supply or is pressed there is spark at ODS pilot but no ignition manual shutoff valve closed Control knob not in PILOT position Control knob not pressed in while in PILOT position Air in gas lines when installed ODS pilot is clogged Gas regulator se
16. allowed by local codes e sealant resistant to propane propaneLP gas not provided e electric drill with 3 16 drill bit 1 Apply pipe joint sealant lightly to male threads of the fitting to be threaded into gas regulator Connect approved flexible gas hose to gas regulator of heater see Figure 11 page 15 IMPORTANT Hold gas regulator with wrench when connecting flexible gas hose 2 Locate masonary screws in hardware package Position heater base assembly in fireplace 4 Mark screw locations through holes in mounting brackets see Figure 12 page 15 If installing in a brick bottom fireplace mark screw locations in mortar joint of bricks 5 Remove heater base from fireplace 6 Drill holes at marked locations using 3 16 drill bit 7 Attach base assembly to fireplace floor using two masonry screws in hardware package see Figure 12 page 15 8 Connect to gas supply See Connecting To Gas Supply page 16 wo 102990 INSTALLING Continued Heater Gas Regulator Flexible Gas Hose if allowed by local codes Figure 11 Attaching Flexible Gas Hose to Heater Gas Regulator Mounting Bracket Figure 12 Attaching Base Assembly to Fireplace Floor 102990 INSTALLING Continued CONNECTING TO GAS SUPPLY NOTICE A qualified service person must connect heater to gas supply Follow all local codes Installation Items Needed Before installing heater make
17. ation LAVA ROCK GA6060 For all models Order when additional rock is desired 3 1b bag 102990 ILLUSTRATED PARTS BREAKDOWN Variable Manually Controlled Models CGD3018N CGD3924N CGD3930N 102990 PARTS LIST CGD3018N CGD3924N CGD3930N PART NUMBER PART NUMBER PARTNUMBER _ DESCRIPTION 103008 02 103009 02 103010 02 103011 02 102774 04BR 102844 02 102966 02 098867 11 102798 01 102779 03 099056 18 102843 01 102980 01 102568 07 098508 01 098354 01 102445 01 099387 08 098271 07 103042 01 099594 01 098593 01 M11084 38 098304 03 098276 01 098249 01 099553 01 ONoOaRWD 100563 01 101055 02 100565 01 100639 01 101449 04 101137 02 101416 18 GA6060 This list contains replaceable parts used in your heater When ordering parts follow the instructions listed under Replacement Parts on page 28 of this manual 103008 01 103009 01 103010 01 103011 01 102774 01BR 102844 01 102966 01 098867 11 102798 01 102779 01 099056 16 102843 01 102772 01 102568 05 098508 01 098354 01 102445 01 099387 08 098271 07 103042 01 099594 01 098593 01 M11084 38 098304 03 098276 01 098249 01 099553 01 103008 03 103009 03 103010 03 103011 03 102774 03BR 102844 01 102966 01 098867 11 102798 01 102779 01 099056 16 102843 01 102772 01 102568 05 098508 01 098354 01 102445 01 099387 08 098271 07 103042 01 099594 01 098593 01 M11084 38 098304 03 098276
18. comes back on you may want to reposition the thermostat sensing bulb The thermostat sensing bulb is located near the gas valve assembly on the mounting bracket This location allows the thermostat to keep the room temperature at an ideal comfort level for most fireplace applications For positioning the thermostat sensing bulb elsewhere an adhesive backed mounting clip has been provided Tools needed 1 4 hex driver or socket 1 Remove logs Locate the gas valve assembly and thermostat sensing blub see Figure 26 Gas Valve Assembly Mounting Thermostat Bracket Sensing Bulb Figure 26 Location of Gas Valve Assembly and Thermostat Sensing Bulb 2 The adhesive backed mounting clip see Figure 27 is attached to the thermostat sensing bulb Remove the adhesive backed mounting clip x Figure 27 Adhesive backed Mounting Clip 3 With 1 4 hex driver or socket loosen the thermostat screw Carefully slide the thermostat sensing bulb out of the retaining clamp see Figure 28 Note Do not remove the screw Make sure you tighten the screw after removing the thermostat sensing bulb IMPORTANT Do not force or bend the thermostat sensing bulb or capillary Capillary Thermostat Screw Retaining Clamp Thermostat Sensing Bulb Figure 28 Removing Thermostat Sensing Bulb 4 The thermostat sensing bulb may be located to the lower right front side of fireplace Determine location of sensing bulb but do not mount sen
19. e immediately call your gas supplier from a neighbor s phone Follow the gas supplier s instructions e if you cannot reach your gas supplier call the fire department This heater shall not be installed in a bedroom or bathroom 4 Never install the heater e in a recreational vehicle e where curtains furniture clothing or other flammable objects are less than 36 inches from the front top or sides of the heater e in high traffic areas e in windy or drafty areas 5 Before installing in a solid fuel burning fireplace the chimney flue and firebox must be cleaned of soot creosote ashes and loose paint by a qualified chimney cleaner Creosote will ignite if highly heated Inspect chimney flue for damage If damaged operate heater with flue damper closed 6 If fireplace has glass doors never operate this heater with glass doors closed If you operate heater with doors closed heat buildup inside fireplace will cause glass to burst Also if fireplace opening has vents at the bottom you must open the vents before operating heater 7 You must operate this heater with a fireplace screen in place Make sure fireplace screen is closed before running heater 8 This log heater is designed to be smokeless If logs ever appear to smoke turn off heater and call a qualified service person Note During initial operation slight smoking could occur due to log curing and heater burning manufacturing residues 9 Do not allow fans to blow directly into
20. eck all other internal joints for leaks Turn off heater see To Turn Off Gas to Appliance page 21 manually con trolled models or page 24 thermostatically controlled model Manua Shutoff Valve Closed Figure 14 Manual Shutoff Valve a des Thermostat Gas Valve or uto Control Valve Location Valve Gas Meter J Figure 15 Checking Gas Joints 102990 INSTALLING INSTALLING LOGS Continued WARNING Failure to position the parts in accordance with these diagrams or failure to use only parts specifically approved with this heater may result in property damage or personal injury 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 Locate pegs on the bottom of back log 1 Slide these pegs into the holes in the grate base behind the burner see Figure 16 2 Place the base of the middle log 2 in the U shaped slots of the grate base in front of the back log The cutout on the right of the middle log should fit over the burner see Figure 17 Make sure the front of the middle log is resting on the tabs of the grate base and the cutout area is centered over the burner U bend 3 Locate the recesses on the back of the front log 3 Fit these recesses between the posts of the grate base see Figure 18 4 Loca
21. ee Pilot Burner Figure 21 Pilot If control knob does not pop out when released contact a qualified service person or gas supplier for repairs 8 Slightly depress and turn control knob counterclockwise y to desired heating level The burner should light Set control knob to any heat level between HI and LO WARNING Do not operate heater between PILOT and HIGH positions GE VARIABLE CONTROL OPERATION D 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 dancing yellow flames Selecting higher settings produces greater heat output This results in increased heating comfort CAUTION Do not try to adjust heating levels by using the manual shutoff valve GE TO TURN OFF Gas TO APPLIANCE M Shutting Off Heater 1 Press in and turn control knob clockwise to the HIGH position 2 Turn control knob clockwise XN to the pilot position 3 Press in control knob and turn clockwise to the OFF position Shutting Off Burners Only pilot stays lit 1 Turn control knob clockwise X to the HIGH position 2 Press in and turn control knob clockwise to the pilot position 102990 OPERATING HEATER Manually Controlled Models Continued OPERATING HEATER Thermostatically Controlled Model S MANUAL LIGHTING PROCE
22. efective 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 ONE 1 YEAR ON ALL COMPO NENTS 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 CONSE QUENTIAL 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 DESA INTERNATIONAL 2701 Industrial Drive P O Box 90004 Bowling Green KY 42102 9004 102990 01 Rev A 06 96
23. end of gas pipe where manual shutoff valve was connected Continued 102990 INSTALLING Continued Pressurize supply piping system by either 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 forming show a leak Correct all leaks at once Re connect heater and manual shutoff valve to gas supply Check re connected fittings for leaks Test Pressures Equal To or Less Than 1 2 PSIG l 2 4 Close manual shutoff valve see Figure 14 Pressurize supply piping system by either using compressed air or opening main gas valve located on or near gas meter Check all joints from gas meter to manual shutoff valve see Figure 15 Apply mixture of liquid soap and water to gas joints Bubbles forming show a leak Correct all leaks at once Pressure Testing Heater Gas Connections 1 mi Open manual shutoff valve see Figure 14 2 Open main gas valve located on or near gas meter 3 4 Check all joints from manual shutoff valve to control valve see Figure 15 Make sure control knob of heater is in the OFF position Apply mixture of liquid soap and water to gas joints Bubbles forming show a leak Correct all leaks at once Light heater see Operating Heater pages 20 through 22 manually controlled models or pages 22 through 24 thermostatically controlled model Ch
24. erial Figure 8 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 combustible flooring see Figure 9 Hearth Combustible Material Min Figure 9 Minimum Fireplace Clearances Above Combustible Flooring 102990 INSTALLING Continued INSTALLING DAMPER CLAMP ACCESSORY FOR VENTED OPERATION Note When used as a vented heater appliance must be installed only in a solid fuel burning fireplace with a working flue and constructed of non combustible material If your heater is a 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 clearance to combustibles requirements for vent free operation 2 State or local codes do not permit vent free operation 3 You prefer vented operation Ifreasons number 1 or 2 above apply to you you must permanently open chimney flue damper You must install the damper clamp accessory to order see Accessories page 33 This will insure vented operation see Figure 10 The damper clamp will keep damper open Installation instructions are included with clamp accessory See chart below for minimum permanent flue opening you must provide Attach damper clamp so the minimum permanent flue opening will be maintained at all times
25. fter ODS pilot is lit Cleaning and Mainte nance page 25 or replace burner orifice 2 Inlet gas pressure is 2 Contact local natural gas too low company 3 Burner orifice diameter 3 Replace burner orifice is too small Delayed ignition 1 Manifold pressure is 1 Contact local natural gas burner too low company 2 Burner orifice clogged 2 Clean burner see Cleaning and Mainte nance page 25 or replace burner orifice Burner backfiring 1 Burner orifice is 1 Clean burner see during combustion clogged or damaged Cleaning and Mainte nance page 25 or replace burner orifice 2 Damaged burner 2 Replace damaged burner 3 Gas regulator defective 3 Replace gas regulator Slight smoke or 1 Not enough air 1 Check burner for dirt odor during initial and debris If found operation clean burner see Cleaning and Mainte nance page 25 2 Gas regulator defective 2 Replace gas regulator 3 Residues from manu 3 Problem will stop after a facturing processes few hours of operation and logs curing Moisture condensa 1 Not enough combus 1 Refer to Air for Com tion noticed on tion ventilation air bustion and Ventilation windows requirements page 5 Heater produces a 1 Turning control knob 1 Turn control knob to LO whistling noise to HI position when position and let warm up when burner is lit burner is cold for a minute 2 Air in gas line 2 Operate burner until air is removed from line Have gas line checked by local
26. ile heater is running See IMPORTANT statement above 2 Gas leak See Warning 2 Locate and correct all statement at top of leaks see Checking Gas page Connections page 17 Heater shuts off in use 1 Not enough fresh air is 1 Open window and or door ODS operates available for ventilation 2 Low line pressure 2 Contact local natural gas company 3 ODS pilot is partially 3 Clean ODS pilot see clogged Cleaning and Mainte nance page 25 Gas odor even when 1 Gas leak See Warning 1 Locate and correct all control knob is in OFF statement at top of leaks see Checking Gas position page Connections page 17 2 Control valve defective 2 Replace control valve Gas odor during 1 Foreign matter between 1 Take apart gas tubing and combustion control valve and burner remove foreign matter 2 Gas leak See Warning 2 Locate and correct all statement at top of leaks see Checking Gas page Connections page 17 Logs set cycles to 1 Thermostat sensing bulb 1 Reposition thermostat pilot but room temperature drops to a lower than ideal level before log set comes back on needs to be repositioned sensing bulb see instruc tions for Optional Positioning of Thermostat Sensing Bulb page 29 102990 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
27. 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 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 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 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 Safety Information continues on next page 102990 A WARNINGS Continued SAF ETY WARNING Any change to this heater or its controls can be dangerous IN FO RM ATI ON 1 This appliance is only for use with the type of gas indicated on the rating plate This appliance is not convertible for use with other gases Continued 2 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 your building
28. l Knob Ignitor Button Figure 22 Control Knob and Ignitor Button Location 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 information above If you don t smell gas go to the next step 5 Turn control knob counterclockwise to the PILOT position Press in control knob for five 5 seconds see above Note You may be running this heater for the first time after hooking up to gas supply If so the control knob may need to be pressed in for 30 seconds or less This will allow air to bleed from the gas system If control knob does not pop out when released contact a qualified service person or gas supplier for repairs 6 With control knob pressed in press and release ignitor button This will light pilot The pilot is attached to the front burner If needed keep pressing ignitor button until pilot lights Note If pilot does not stay lit contact a qualified service person or gas supplier for repairs Until repairs are made light pilot with match To light pilot with match see Manual Lighting Procedure on page 24 7 Keep control knob pressed in for 30 seconds after lighting pilot After 30 seconds release control knob Note If pilot goes out repeat steps 3 through 7 This heater has a safety interlock system Wait one 1 minute for system to reset before lighting pilot again Thermocouple Ignitor Electrode se Pilot
29. le Tile etc Above Fireplace 102990 INSTALLING Minimum Non Combustible Material Clearances If Using Mantel Continued 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 acces sory 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 6 and 7 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 Acces sory for Vented Operation page 13 Non Combustible Requirements for Material Distance A Safe Installation 12 or more Non combustible material okay Between 8 and 12 24 or 30 Models Install fireplace hood acessory GA6050 or GA6052 see Accessories page 33 18 Model Non combustable material okay 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 with flue damper open Mantel Clearances If you meet minimum cleara
30. licable is our standard written warranty We make no other warranty expressed or implied LIMITED WARRANTY COMFORT GLOW VENT FREE NATURAL GAS LOG HEATERS DESA International warrants this product to be free from defects in materials and components for one 1 year 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 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 d
31. ling Damper Clamp Accessory for Vented Operation page 13 Minimum Non Combustible Material Clearances If Not Using Mantel Note If using a mantel go to page 11 If not using a mantel follow the informa tion on this page 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 up for all models If non combus tible material is less than 12 you must install the fireplace hood accessory 24 and 30 models only See chart below and Figure 5 for minimum clearances IMPORTANT If you cannot meet these minimum clearances you must operate heater with chimney flue damper open Go to Installing Damper Clamp Accessory for Vented Operation page 13 Non Combustible Requirements for Material Distance A Safe Installation 12 or more Non combustible material okay Between 8 and 12 24 or 30 Models Install fireplace hood acessory GA6050 or GA6052 see Accessories page 33 18 Model Non combustible material okay 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 with flue damper open Heat Resistant Material Figure 5 Heat Resistant Material Slate Marb
32. ll 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 under water GEE LIGHTING INSTRUCTIONS aaa WARNING If fireplace has glass doors never operate this heater with glass doors closed If you operate heater with doors closed heat buildup inside fireplace will cause glass to burst Also if fireplace opening has vents at the bottom you must open the vents before operating heater You must operate this heater with a fireplace screen in place Make sure fireplace screen is closed before running heater NOTICE During initial operation of new heater burning logs will give off a paper burning smell Orange flame will also be 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 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 informatio
33. lling Heater Base Assembly eeeceesceececeereesseceneecereeeneeeeee 14 Connecting to Gas Supply 0 eee ecceesecseesseceecnsecseceseeeeceeeeeneees 16 Checking Gas Connections o0 ee ce eceeeeceeseeesecseecseceeeaecseeaeensensees 17 Installing Logs isese riire a e E E oS 19 Operating Heater Manually Controlled Models 0 eee eee eeeeeeee 20 Operating Heater Thermostatically Controlled Model 0 0 0 eee 22 Inspecting Burners amp eccvs cile n aa E T 24 Cleaning and Maintenance e seseeeeseseesesssesreserreseeerssresrsesrertesrrresrereeseee 25 Troubleshooting aisinn iesen iid accscetesdohucsteivceeniencaosgnees ocd VEe e EEE erkei 25 Optional Positioning of Thermostat Sensing Bulb oe 29 Technical Service oiie ee ietvess Gri est a leds dso Eea aeia 31 Specificafi NS nerna sh ds chee A Nu ene Seb fetes esse Rebs hae AEE EEEE EEEE 31 Service HINS seis asta these ee ad ete kote ae a 31 Replacement Parts ienien tirao a eerie i 32 Parts Central aici nna o e tate hii ht ee E REA 32 ACCESSOTIES o a e dad hg E E ah eee a 33 Ilustr ted Parts Lists s sisii cssscicestssysesstesscascsdeetschacesseotensssevsetidssyesieasssonesszs 34 Warranty Information ssis reisos e eee ceeseecseceseceeceseeseceseeeeceeeeeseeeeeeseneeeeeens Back Cover A WARNINGS IMPORTANT Read this owner s manual carefully and completely before trying to assemble operate or service this heater Improper use of this heater can cause serious
34. n above 2 Make sure manual shutoff valve is fully open 3 Press in and turn control knob clockwise lt N to the OFF position eee Ignitor Button Figure 20 Control Knob and Ignitor Button Location 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 information above If you don t smell gas go to the next step 102990 OPERATING HEATER Manually Controlled Models Continued 5 Slightly depress and turn control knob counterclockwise A to the PILOT position Press in control knob for five 5 seconds see Page 20 Note You may be running this heater for the first time after hooking up to gas supply If so the control 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 burner If needed keep pressing ignitor button until pilot lights Note If pilot does not stay lit contact a qualified service person or gas supplier for repairs Until repairs are made light pilot with match To light pilot with match see Manual Lighting Procedure page 22 7 Keep control knob pressed in for 30 seconds after lighting pilot After 30 seconds release control knob Note If pilot goes out repeat steps 3 through 7 Thermocouple Ignitor Electrode w
35. n and ventilation Exhaust fans fireplaces clothes dryers and fuel burning appliances draw air from the house to operate You must provide adequate fresh air for these appliances This will insure proper venting of vented fuel burning appliances PROVIDING ADEQUATE VENTILATION The following 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 Contruction 2 Unconfined Space 3 Confined Space The information on pages 5 through 7 will help you classify your space and provide adequate ventilation Unusually Tight Construction The air that leaks around doors and windows may provide enough fresh air for combustion and ventilation However in buildings of unusually tight construction you must provide additional fresh air Unusually tight construction is defined as construction where a walls and ceilings exposed to the outside atmosphere have a continu ous water vapor retarder with a rating of one perm or less with open ings gasketed or sealed and b weather stripping has been added on openable windows and doors and c caulking or sealants are applied to areas such as joints around window and door frames between sole plates and floors between wall ceiling joints between wall panels at penetrations for plumbing electrical and gas lines and at other openings If your h
36. natural gas company 3 Air passageways on 3 Observe minimum heater blocked installation clearances see pages 9 12 4 Dirty or partially 4 Clean burner see clogged burner orifice Cleaning and Maintenance page 25 or replace burner orifice Continued TROUBLE SHOOTING Continued WARNING If you smell gas building 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 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 POSSIBLE PROBLEM CAUSE REMEDY Heater produces a 1 Metal expanding while 1 This is common with clicking ticking noise just after burner is lit or shut off heating or contracting while cooling most heaters If noise is excessive contact qualified service person Heater produces 1 Heater burning vapors 1 Open window and unwanted odors from paint hair spray ventilate room Stop using glues cleaners chemi odor causing products cals new carpet etc wh
37. nce between mantel shelf and top of fireplace open ing a hood is not required see Figure 6 Mantel Shelf Underside of Mantel Shelf All minimum distances are in inches Minimum Non gt Combustible L Material og Set 12 20 2412 1271 2 130 24 30 Models 8 14 163 4 18 2 20 lt 18 Model Top of Fireplace QF Fe Opening Minimum Non Distances to Combustible Underside of Material Height Mantel Figure 6 Minimum Mantel Clearances Without Using Hood If above minimum clearances are not met you must have a hood Follow minimum clearances shown in Figure 7 when using hood Continiea 102990 INSTALLING Continued Mantel Shelf Underside of Mantel Shelf All minimum distances are in inches Log Set 8 12 15 18 20 lt 18 24 30 Min Models T eer Top of Fireplace WF Opening Distances to Underside of Mantel Minimum Non Combustible Material GA6050 GA6052 Figure 7 Minimum Mantel Clearances When Using Hood If your installation does not meet the above minimum clearances you must e operate the logs only with the flue damper open OR e raise the mantel to an acceptable height OR e remove the mantel Floor Clearances A If installing appliance on the floor level you must maintain the minimum distance of 14 to combustibles see Figure 8 Combustible 14 Material Min e Mat
38. ome meets all of the three criteria above you must provide addi tional fresh air See Ventilation Air From Outdoors page 7 If your home does not meet all of the three criteria above proceed to page 6 Unconfined Space The National Fuel Gas Code ANSIZ223 1 1992 Section 5 3 defines uncon fined space as having a minimum air volume of 50 cubic feet 127 cubic cm for each 1000 Btu Hr input rating of all appliances in the space cubic feet equals length x width x height of space Include adjoining rooms only if there are doorless passageways or ventilation grills between the rooms Confined Space The National Fuel Gas Code ANSIZ223 1 1992 Section 5 3 defines confined space as having an air volume of less than 50 cubic feet 127 cubic cm for each 1000 Btu Hr input rating of all appliances in the space cubic feet equals length x width x height of space Include adjoining rooms only if there are doorless passageways or ventilation grills between the rooms Continued S 102990 AIR FOR COMBUSTION AND VENTILATION Continued DETERMINING AIR FLOW FOR HEATER LOCATION Determining if You Have a Confined or Unconfined Space Use this work sheet to determine if you have a confined or unconfined space Space Includes the room in which you will install heater plus any adjoining rooms with doorless passageways or ventilation grills between the rooms 1 Determine the volume of the space length x width x height Leng
39. r if alog is chipped dime sized or larger 19 Turn heater off and let cool before servicing Only a qualified service person should service and repair heater 20 Operating heater above elevations of 4 500 feet could cause pilot outage R 102990 PRODUCT IDENTIFICATION LOCAL CODES UNPACKING PRODUCT FEATURES Crossover Log Back Log Front Log Ne Burner Piezo Ignitor Middle Log Base Grate foe Control Sine 4 Figure 1 Vent Free Gas Log Heater 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 1 Remove logs and heater base assembly 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 applied to logs and heater for shipment 3 Check all items for any shipping damage If damaged promptly inform dealer where you bought heater 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
40. realistic dancing yellow flames This heater is designed for vent free operation 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 102990 AIR FOR COMBUSTION AND VENTILATION WARNING This heater shall not be installed in a confined space unless provisions are provided for adequate combustion and ventilation air Read the following instructions to insure proper fresh air for this and other fuel burning appliances in your home Today s homes are built more energy efficient than ever New materials increased insulation and new construction methods help reduce heat loss in homes Home owners weather strip and caulk around windows and doors to keep the cold air out and the warm air in During heating months home owners want their homes as airtight as possible While it is good to make your home energy efficient your home needs to breathe Fresh air must enter your home All fuel burning appliances need fresh air for proper combustio
41. sing bulb until step 5 If you have a masonry fireplace see Figure 29 on page 30 for location 102990 OPTIONAL POSITIONING OF THERMOSTAT SENSING BULB For Masonry and Factory built Metal Fireplace Continued 5 The mounting clip must be a minimum of 3 from bottom of fireplace to Thermostat a ee L Sensing Bulb a T Adhesive backed D TO Mounting Clip Figure 29 Locating Thermostat Sensing Bulb on Masonry Fireplace If you have a factory built metal fireplace see Figure 30 for location ZE Thermostat DN Sensing Bulb Rna D OA E Adhesive backed Mounting Clip Figure 30 Locating Thermostat Sensing Bulb on Factory built Metal Fireplace If your fireplace has glass doors position sensing bulb directly behind door gap on right bottom side see Figure 31 Thermostat ON Sensing Bulb N Adhesive backed Mounting Clip Glass Doors Figure 31 Installing Thermostat Sensing Bulb behind Glass Doors prevent crimping of capillary Once you have decided on a location clean the area thoroughly Remove the paper backing from the adhesive on back of mounting clip Press the clip into the new location so that the thermostat sensing bulb will be positioned vertically with the capillary at the bottom see Figure 32 Slide the thermostat sensing bulb into the clip IMPORTANT Do not crimp capillary Thermostat Sensing Bulb Adhe
42. sive backed Capillary Mounting Clip Do Not Crimp Capillary Figure 32 Positioning the Thermostat Sensing Bulb in the Vertical Position with the Capillary at the Bottom 102990 TECHNICAL SERVICE SPECIFICATIONS SERVICE HINTS You may have further questions about installation operation or troubleshooting If so contact DESA International s Technical Service Department at 1 800 DESA LOG 1 800 337 2564 18 Model 24 Models 30 Model Btu Variable 16 000 30 000 20 000 39 000 20 000 39 0000 Type Gas Natural Gas Only Natural Gas Only Natural Gas Only Ignition Piezo Piezo Piezo Manifold Pressure 3 5 W C 3 5 W C 3 5 W C Inlet Gas Pressure in of water Maximum 10 5 10 5 10 5 Minimum 5 Shipping Weight 28 lbs 30 Ibs 32 Ibs For the purpose of input adjustment When gas pressure is too low e pilot will not stay lit e burners will have delayed ignition e heater will not produce specified heat When gas quality is bad e pilot will not stay lit e burners will produce flames and soot e 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 102990 REPLACEMENT PARTS PARTS CENTRAL Note Use only original replacement parts This will protect your warranty cover age for parts replaced under warranty Parts Under Warranty Contact authorized dealers of this product If they can
43. st Coast Energy Products 833 Broadway W Long Branch NJ 07764 908 870 8809 1 800 755 8809 Tarantin Tank Co P O Box 6129 Freehold NJ 07728 908 780 9340 1 800 922 0724 Albany Ladder 1586 90 Central Avenue Albany NY 12205 NY MA VT 518 869 5335 1 800 354 7368 Dayton Hardware P O Box 275 North Dayton Station Dayton OH 45404 All States 513 258 3721 OH 1 800 762 3426 Halco Enterprises 208 Carter Drive Unit 21 West Chester PA 19382 215 696 2670 1 800 368 0803 LA Porte s Parts amp Service 2444 N 5th Street Hartsville SC 29550 803 332 0191 Parts Department Cans Unlimited Inc P O Box 645 Taylor SC 29687 All States 803 879 3009 1 800 845 5301 102990 ACCESSORIES Purchase these fireplace accessories from your local dealer If they can not supply these accessories call DESA International s Sales Department at 1 800 972 7879 for referral information You can also write to the address listed on the back page of this manual MANUAL SHUTOFF VALVE GA5010 For all models Manual shutoff valve with 1 8 NPT tap Fits 1 2 NPT pipe 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 DAMPER CLAMP GA6080 For variably controlled models Permanently opens chimney flue damper for vented oper
44. stallation adjust ment alteration service or maintenance can cause injury or property damage Refer to this manual for correct installa tion and operational procedures For assistance or additional information consult a qualified installer service agency or the gas supplier WARNING This gas log set is for instal lation in a masonry solid fuel burning fireplace or a U L listed manufactured solid fuel burning fireplace 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 sec tion in this manual Save this manual for future reference CONTENTS SAFETY INFORMATION SECTION PAGE Safety INLOLMAlOM so osc dees soesseeeseyasdeveeise seeck as reene p e deserved EENE tees 2 Prod ct Id ntifica t OT 4 ssse so sesesicss peecvtereeeect eden opisto oeae T Ee ae E e 4 Local Codes aeni e eE E EE TE E E EEES 4 Upp kN k ee r E e a PEE ENE EE EEKE ETS 4 Product Features i nire ree r ee E EEEE EEE EEEE EE TEKE E EEEE 4 Air for Combustion and Ventilation sesseeeseseeeeseeeesseeeersesrsrrerrereseereses 5 Installing pennen aa nde iota T E TE E E 8 Check Gas Typene ct ih ili natal le ea 8 Installation and Clearances Vent Free Operation Only 9 Installing Damper Clamp Accessory for Vented Operation 13 Insta
45. sure you have the items listed below e piping check local codes e sediment trap e sealant resistant to propane LP gas e tee joint e manual shutoff valve e pipe wrench e test gauge connection AnA G A design certified manual shutoff valve with 1 8 NPT tap is an acceptable alternative to test gauge connection Purchase the optional A G A design certified manual shutoff valve from your dealer See Accessories page 33 WARNING Never connect heater to private non utility gas wells This gas is commonly known as well head gas CAUTION Use only new black iron or steel 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 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 up stream from heater see Figure 13 page 17 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 sealant that is resistant to liquid petroleum LP gas Install sediment trap in supply line as shown in Figure 13 page 17 Locate sedi ment trap where it is within reach for cleaning Locate sediment trap where
46. te the notches in the bottom of the crossover log 4 Place the crossover log on top of the middle log and front log Make sure the notches of the cross over log lines up with rectangular knobs on top of the middle and front logs see Figure 19 Back Log 1 Middle Log 2 Figure 16 Installing Back Log 1 Front Log 3 Figure 18 Installing Front Log 3 Figure 19 Installing Crossover Log 4 102990 OPERATING HEATER Manually Controlled Models Ml FOR YOUR SAFETY READ BEFORE LIGHTING E WARNING If you do not follow these instructions exactly a fire or explosion may result causing 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 exactly 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 e Do not try to light any appliance e 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 If you cannot reach your gas supplier call the fire department C Use only your hand to push in or turn the gas control knob Never use tools If the knob will not push in or turn by hand don t try to repair it ca
47. th 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 openings 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 support 3 Add the Btu Hr of all fuel burning appliances in the space Vent free heater Btu Hr Gas water heater Btu Hr Gas furnace Btu Hr Vented gas heater Btu Hr Gas fireplace logs Btu Hr Other gas appliances Btu Hr Total Btu Hr Example Gas water heater 40 000 Btu Hr Vent free heater 39 000 Btu Hr Total 79 000 Btu Hr Do not include direct vent gas appliances Direct vent draws combustion air from the outdoors and vents to the outdoors 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 79 000 Btu Hr actual amount of Btu Hr used The space in the above example is a confined space because the actual Btu Hr used is more than the maximum Btu Hr
48. 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 ventilation grills between rooms See Ventilation Air From Inside Building page 7 B Vent room directly to the outdoors See Ventilation Air From Outdoors page 7 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 space is an unconfined space You will need no additional fresh air ventilation 102990 AIR FOR COMBUSTION AND VENTILATION Continued WARNING If the area in which the heater may be operated is smaller than that defined as an unconfined space provide adequate combus tion and ventilation air by one of the methods described in the National Fuel Gas Code ANSI 2223 1 1992 Section 5 3 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 of the floor on the wall connecting the two spaces see options 1 and 2 Figure 2 You can also remove door into adjoining room see option 3 Figure 2 Follow the National Fuel Gas Code NFPA 54 ANSI Z223 1 Section
49. tting is not correct open manual shutoff valve 2 Turn control knob to PILOT position 3 Press in control knob while in PILOT position 4 Continue holding down control knob Repeat igniting operation until air is removed 5 Clean ODS pilot see Cleaning and Mainte nance page 25 or replace ODS pilot assembly 6 Replace gas regulator ODS pilot lights but flame goes out when control knob is released Control knob not fully pressed in Control knob not pressed in long enough Manual shutoff valve not fully open Pilot flame not touching thermocouple which allows thermocouple to cool causing pilot flame to go out This problem could be caused by one or both of the following A Low gas pressure B Dirty or partially clogged ODS pilot Thermocouple connec tion loose at control valve Thermocouple damaged Control valve damaged 1 Press in control knob fully 2 After ODS pilot lights keep control knob pressed in 30 seconds 3 Fully open manual shut off valve 4 A Contact local natural gas company B Clean ODS pilot see Cleaning and Maintenance page 25 or replace ODS pilot assembly 5 Hand tighten until snug then tighten 1 4 turn more 6 Replace thermocouple 7 Replace control valve 102990 TROUBLE SHOOTING Continued OBSERVED POSSIBLE PROBLEM CAUSE REMEDY Burner does light 1 Burner orifice clogged 1 Clean burner see a
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