Desa VF-18N-PJD User's Manual
Contents
1. FIREBOX 5 1 2 4 6 8 10 12 14 16 INCHES Minimum 16 inches from Side Wall Figure 4 Minimum Clearance for Combustible to Wall Minimum Noncombustible Material Clearances If Not Using Mantel Note If using a mantel proceed to If Using Mantel If not using a mantel follow the informa tion below You must have noncombustible material s above fireplace opening Noncombustible materials such as slate marble tile etc must be at least 1 2 inch thick With sheet metal you must have noncombustible material behind it Noncombus tible material must extend at least 8 up for all models If noncombustible material is less than 12 you must install the fireplace hood accessory 24 models only See Figure 5 page 10 for minimum clearances If Using Mantel You must have noncombustible material s above the fireplace opening Noncombustible materials such as slate marble tile etc must be at least 1 2 inch thick With sheet metal you must have noncombustible material behind it Noncombus tible material must extend at least 8 inches up for all models If noncombustible material is less than 12 you must install the fireplace hood accessory Even if noncombustible material is more than 12 you may need the hood accessory to deflect heat away from your mantel shelf See Figures 5 6 and 7 page 10 for minimum clearances 111826 04A www desatech com 9 INSTALLATION Continued Noncombu2. 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 combustion and ventilation Exhaust fans fireplaces clothes dryers and fuel burning appliances draw air from the house to operate You must provide adequate fresh air for these appliances This will insure proper venting of vented fuel burning appliances PROVIDING ADEQUATE VENTILATION The following are excerpts from National Fuel Gas Code ANSI Z223 1 NFPA 54 Section 5 3 Air for Combustion and Ventilation All spaces in homes fall into one of the three fol lowing ventilation classifications 1 Unusually Tight Construction 2 Unconfined Space 3 Confined Space The 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 ven tilation However in buildings of unusually tight construction you must provide additional fresh air 111826 04A www desatech c
3. Air Shutter Orifice Front Orifice Rear 3 8 Nut Sleeve Rear Flextube Rear Log Plate Left Burner Bracket Front Burner Right Burner Bracket Right Ember Plate Front Flextube Pilot Bracket Kit ODS Pilot NG Pilot Shield Front Log Bracket 3 16 Flextube 3 16 Nut Sleeve Screw 10 24 x 375 Front Log Kit Left Ember Pod Kit Right Ember Pod Kit Back Log Kit Warning Plate Lighting Instructions Plate Caution Decal Log Ember Kit 1 Log Ember Kit 2 Ember Flakes Kit Gas Line Flex with Shut Off ws Ss es ds eis A A sk Re E eR ee cs 111826 04A www desatech com 29 NOTES 30 www desatech com 111826 04A NOTES 111826 04A www desatech com 31 WARRANTY INFORMATION KEEP THIS WARRANTY Model Serial No Date Purchased Always specify model and serial numbers when communicating with the factory We reserve the right to amend these specifications at any time without notice The only warranty applicable is our standard written warranty We make no other warranty expressed or implied LIMITED WARRANTY VENT FREE GAS LOG HEATERS DESA warrants this product to be free from defects in materials and components for four 4 years from the
4. 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 AAA Ventilated Attic Outlet Air To Attic To Crawl Space na em Air A Ventilated Inlet Air Crawl Space Figure 3 Ventilation Air from Outdoors 111826 04A www desatech com T INSTALLATION NOTICE This heateris intended for use as supplemental heat Use this heater along with your primary heating system Do not install this heater as your pri mary heat source If you have a central heating system you may run system s circulating blower while using heater This will help circulate the heat throughout the house In the event of a power outage you can use this heater as your primary heat source Ay WARNING A qualified ser vice person must install heater Follow all local codes AR WARNING Before installing in a solid fuel burning fireplace the chimney flue and firebox must be cleaned of soot creosote ashes and loose paintby a qualified chim ney cleaner Creosote will ignite if highly heated A dirty chimney flue may create and distribute soot within the house Inspect chimney and firebox flue for damage If damaged repair flue and firebox before operating heater AX WARNING Seal any fresh air vents or ash clean out doors located on
5. UNVENTED VENT FREE GAS LOG HEATER OWNER S OPERATION AND INSTALLATION MANUAL We recommend that our products be installed and VF 24N PJD VF 24P PJD BANS Serviced by prof VF 1 8N PJD VF 1 8P PJD are E nes il GE www nficertified org WARNING If the information in this manual is not fol lowed exactly a fire or explosion may result causing property damage personal injury or loss of life Do not store or use gasoline or other flammable vapors and liquids in the vicinity of this or any other appliance WHAT TO DO IF YOU SMELL GAS e Do not try to light any appliance Do not touch any electrical switch do not use any phone in your building Immediately call your gas supplier from a neighbor s phone Follow the gas supplier s instructions If you cannot reach your gas supplier call the fire department Installation and service must be performed by a quali fied installer service agency or the gas supplier INSTALLER Leave this manual with the appliance CONSUMER Retain this manual for future reference For more information visit www desatech com WARNING Improper installation adjustment altera tion service or maintenance can cause injury or prop erty damage Refer to this manual for correct installation and operational procedures For assistance or addi tional information consult a qualified installer service agency or the gas supplier WARNING This appliance is for in
6. Gas may be present even though no odor exists Make certain you read and understand all warn ings Keep this manual for reference It is your guide to safe and proper operation of this heater A WARNING Any change to this heater or its controls can be dangerous AX WARNING Do not use a blower insert heat exchanger insert or other accessory not ap proved for use with this heater WARNING Do notallowfans to blow directly into the heater Avoid any drafts that alter burner flame patterns Ceiling fans can create drafts that alter burner flame patterns Altered burner patterns can cause sooting A WARNING Do not place log scraps or lava rocks on burner Due to high temperatures the appliance should be located out of traffic and away from furniture and draperies Do not place clothing or other flammable material on or near the appliance Never place any objects on the 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 chil dren when they are in the room with heater You must operate this heater with a fireplace screen in place Make sure fireplace screen is closed before running heater Keep the appliance area clear an
7. or replace burner orifice 2 Replace damaged burner 3 Replace gas regulator Orange flame in burner during burner combustion 1 Not enough air 2 Gas regulator defective 1 Check burner for dirt and debris If found clean burner see Cleaning and Mainte nance page 19 2 Replace gas control Slight smoke or odor during initial operation first hour 1 Residues from manufacturing processes and logs curing 1 Problem will stop after a few hours of operation Heater produces a whistling noise when burner is lit 1 Turning control knob to HI position when burner is cold 2 Air in gas line 3 Air passageways on heater blocked 4 Dirty or partially clogged burner orifice s 1 Turn control knob to LO position and let warm up for a minute 2 Operate burner until air is removed from line Have gas line checked by local natural or propane LP gas company 3 Observe minimum installation clearances see page 9 4 Clean burner see Cleaning and Maintenance page 19 or replace burner orifice White powder residue forming within burner box or on adjacent walls or furniture 1 When heated vapors from furniture polish wax carpet cleaners etc may turn into white powder residue 1 Turn heater off when using furniture polish wax carpet cleaners or similar products Moisture condensation noticed on windows 1 Not enough combustion ven tilation air 1 Refer to Air for Combustio
8. AND CLEARANCES FOR VENT FREE OPERATION AX WARNING Maintain the minimum clearances If you can provide greater clearances from floor ceiling and adjoining wall MINIMUM FIREPLACE CLEARANCE TO COMBUSTIBLE MATERIALS Log Size 18 or 24 Side Wall 16 Ceiling 42 Floor 5 LOG SIZING REQUIREMENTS Minimum Firebox Size Log Front Rear Size Height Depth Width Width 18 17 14 24 20 24 17 14 28 22 Measured at 14 depth Carefully follow the instructions below This will ensure safe installation into a masonry UL127 listed manufactured fireplace or listed vent free firebox enclosure Minimum Clearances For Side Combustible Material Side Wall and Ceiling A Clearances from the side of the fireplace cabinet to any combustible material and wall should follow diagram in Figure 4 Example The face of a mantel bookshelf etc is made of combustible material and protrudes 3 from the wall This combus tible material must be 4 from the side of the fireplace cabinet see Figure 4 Note When installing your gas logs into a manufactured firebox follow firebox manufacturer s instructions for minimum clearances to combustible materials B Clearances from the top of the fireplace opening to the ceiling should not be less than 42 inches p12 a 10 8 7 54 3 2 A 7 8 7 16 Example INCHES
9. an acceptable alternative to test gauge connection Purchase the optional CSA design certified equipment shutoff valve from your dealer See Accessories page 25 For propane LP units the installer must supply an external regulator The external regulator will reduce incoming gas pressure You must reduce incoming gas pressure to between 11 and 14 inches of water If you do not reduce incoming gas pres sure heater regulator damage could occur Install external regulator with the vent pointing down as shown in Figure 11 Pointing the vent down protects it from freezing rain or sleet 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 volume will occur Propane LP Supply Tank External Regulator Vent Pointing Down Figure 11 External Regulator With Vent Pointing Down 12 www desatech com 111826 04A INSTALLATION Continued Installation must include an equipment shutoff valve union and plugged 1 8 NPT tap Locate NPT tap within reach for test gauge hook up NPT tap must be upstream from heater see Figure 12 IMPORTANT Install equipment shutoff valve in an accessible location The equipment shutoff valve is for turning on or shutting off the gas to the appliance Check you
10. are no obstructions across openings of fireplace To prevent the creation of soot follow the instructions in Cleaning and Maintenance page 19 Before using furniture polish wax carpet cleaner or similar products turn heater off If heated the vapors from these products may create a white powder residue within burner box or on adjacent walls or furniture This heater needs fresh outside air ventilation to run properly This heater has an oxygen depletion sensing ODS pilot light safety system The ODS shuts down the heater if not enough fresh air is available See Air for Combustion and Ventilation page 5 If heater keeps shutting off see Troubleshooting page 20 Do not run heater e where flammable liquids or vapors are used or stored e under dusty conditions 12 uy 18 19 Log Set Assembly Control Valve Do not use this heater to cook food or burn paper or other objects Do not use heater if any part has been exposed to or under water Immediately call a qualified service technician to inspect the room heater and to replace any part of the control system and any gas control which has been under water Do not operate heater if any log is broken Do not operate heater if a log is chipped dime sized or larger Turn heater off and let cool before servicing or repairing Only a qualified service person should install service or repair heater This heater does not need to be co
11. floor or wall of fire place If not drafting may cause pilot outage or sooting Use a heat resistant sealant Do not seal chimney flue damper A WARNING Never install the heater e ina bedroom or bathroom e in a recreational vehicle e where curtains furniture cloth ing or other flammable objects are less than 42 inches from the front top or sides of the heater in high traffic areas e in windy or drafty areas AX CAUTION This heater cre ates warm air currents These currents move heat to wall sur faces next to heater Installing heater next to vinyl or cloth wall coverings or operating heater where impurities such as but not limited to tobacco smoke aromatic candles cleaning flu ids oil or kerosene lamps etc in the air exist may discolor walls or cause odors IMPORTANT Vent free heaters add moisture to the air Although this is beneficial installing heater in rooms without enough ventilation air may cause mildew to form from too much moisture See Air for Combustion and Ventilation page 5 CHECK GAS TYPE Use the correct gas type natural or propane LP for your unit If your gas supply is not correct do not install heater Call dealer where you bought heater for proper type heater AX WARNING This appliance is equipped for natural or pro pane LP gas Field conversion is not permitted www desatech com 111826 04A INSTALLATION Continued INSTALLATION
12. us ing a non sharp object such as a pen This lets the pilot gas flow S Light pilot burner with a match see Figure 18 9 Continue holding down metal core for about 10 seconds Pilot should stay lit after releas ing metal core If not repeat step 1 thru 4 10 Turn MAN knob to ON position This lets main gas flow 11 Turn Motor knob to adjust flame Knob has a slipping clutch that allows manual flame height adjustment as well as adjustment to pilot gas Lighting with Piezo Ignitor 1 Disconnect ignitor cable from receiver and connect to Piezo Ignitor Tab see Figure 17 and Wiring Diagram on page 24 2 STOP Read safety information on page 14 3 Make sure equipment shutoff valve is fully open 4 Turn Motor knob clockwise N to the OFF position 5 Wait 5 minutes to clear any gas and then smell for gas around heater and near floor If you smell gas STOP follow B on page 14 6 ON OFF switch in ON position 7 MAN knob on valve is in MAN position see Figure 17 When in MAN position you can see a metallic core 8 Push and hold down metal core fully with a pen while the pilot gas flows 9 Press and release piezo ignitor button until pilot lights Metalic Motor Piezo Core for MAN Knob Knob Ignitor Manual in Manual in ON Tab Ignition Position Position Microswitch ON OFF Switch Figure 17 PJD Control Valve Figure 18 Pilot 111826 04A www desatech
13. Maximum 14 W C 14 W C Minimum 11 WC 11 WC Shipping Weight 32 lbs 34 lbs For purpose of input adjustment ACCESSORIES Purchase these heater accessories from your local LAVA ROCK GA6060 dealer If they can not supply these accessories call Not Shown DESA at 1 866 672 6040 for referral information You can also write to the address listed on the back page of this manual EQUIPMENT SHUTOFF VALVE GA5010 For all models Equipment shutoff valve with 1 8 NPT tap Fits 1 2 NPT pipe As O FIREPLACE HOOD Black GA6050 Brass GA6052 Antique Brass GA6053 For all models Helps deflect heat away from mantel or wall above fireplace Fits openings 28 to 48 wide For all models Order when additional rock is desired 1 8 lb bag CLEANING KIT GCK Not Shown For all models Your vent free gas appliance re quires regular cleaning and maintenance to prevent performance problems This kit gives you the tools and instructions to make it easy to clean all critical areas of your appliance INFORMATION VIDEO 108917 01 For all models A care and maintenance video is avail able by calling 1 866 672 6040 You may also email your request to productsupport desaint com 111826 04A www desatech com 25 ILLUSTRATED PARTS BREAKDOWN MODELS VF 18N PJD AND VF 18P PJD 26 www desatech com 111826 04A KEY NO ANDaABRWDNDM PARTS AVAILABLE NOT SHOWN PARTS LIST This
14. RRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE TO FOUR 4 YEARS ON ALL COMPONENTS FROM THE DATE OF FIRST PURCHASE AND DESA S LIABILITY IS HEREBY LIMITED TO THE PURCHASE PRICE OF THE PRODUCT AND DESA SHALL NOT BE LIABLE FOR ANY OTHER DAMAGES WHATSOEVER INCLUDING INDIRECT INCIDENTAL OR CONSEQUENTIAL DAMAGES Some states do not allow a limitation on how long an implied warranty lasts or an exclusion or limitation of incidental or consequential damages so the above limitation on implied warranties or exclusion or limitation on damages may not apply to you This warranty gives you specific legal rights and you may also have other rights that vary from state to state For information about this warranty write DESA 2701 Industrial Drive P O Box 90004 Bowling Green KY 42102 9004 www desatech com 111826 04 111826 04 NOT A UPC Rev A 03 05
15. RTANT Hold gas fitting with wrench when connecting flexible gas hose 2 Position heater assembly in fireplace 3 Connect to gas supply See Connecting to Gas Supply Flexible Gas Hose if allowed y local codes 8 Romo 4 ARI og t 2 Fitting Figure 10 Attaching Flexible Gas Hose to Regulator CONNECTING TO GAS SUPPLY AX WARNING This appliance requires a 1 2 NPT National Pipe Thread inlet connection to the pressure regulator AX WARNING Aqualified service person mustconnectheaterto gas supply Follow all local codes A CAUTION Never connect propane LP fireplace directly to the propane LP supply This heater requires an external regu lator not supplied Install the external regulator between the heater and propane LP supply AX WARNING Never connect natural gas fireplace to private non utility gas wells This gas is commonly known as wellhead gas Installation Items Needed Before installing heater make sure you have the items listed below e external regulator for propane LP units only supplied by installer e piping check local codes e sealant resistant to propane LP gas e equipment shutoff valve e test gauge connection e sediment trap e tee joint e pipe wrench e approved flexible gas line with gas connector if allowed by local codes not provided ACSA design certified equipment shutoff valve with 1 8 NPT tap is
16. TS Note Use only original replacement parts This will protect your warranty coverage for parts replaced under warranty PARTS UNDER WARRANTY Contact authorized dealers of this product If they can t supply original replacement part s call DESA s Technical Service Department at 1 866 672 6040 When calling DESA have ready e your name e your address model and serial numbers of your appliance e how appliance was malfunctioning e type of gas used propane LP or natural gas e purchase date Usually we will ask you to return the part to the factory PARTS NOT UNDER WARRANTY Contact authorized dealers of this product If they can t supply original replacement part s call DESA at 1 866 672 6040 for referral infor mation When calling DESA have ready model number of your appliance e the replacement part number 24 www desatech com 111826 04A SPECIFICATIONS VF 18N PJD VF 24N PJD Btu Variable 21 000 30 000 21 000 39 000 Type Gas Natural Gas Only Natural Gas Only Ignition Piezo Piezo Manifold Pressure 3 5 W C 3 5 W C Inlet Gas Pressure in of water Maximum 10 5 W C 10 5 W C Minimum 5 0 W C 5 0 W C Shipping Weight 32 lbs 34 lbs For purpose of input adjustment VF 18P PJD VF 24P PJD Btu Variable 21 000 30 000 21 000 39 000 Type Gas Propane LP Only Propane LP Only Ignition Piezo Piezo Manifold Pressure 10 W C 10 W C 3 4 W C Inlet Gas Pressure in of water
17. at you clean the unit every three months during operation and have heater inspected yearly by a qualified service person We also recommend that you keep the burner tube clean and free of dust and dirt We recommend using compressed air no greater than 30 PSI Your local computer store hardware store or home center may carry compressed air in a can You can use a vacuum cleaner in the blow position If using compressed air in a can please follow the direc tions on the can If you don t follow directions on the can you could damage the pilot assembly Before cleaning shut off the unit including the pilot Allow the unit to cool for at least thirty minutes You will need to remove the front log to access the front burner 1 Remove the two screws that hold the front log bracket onto the assembly see Figure 23 The log is attached to this bracket Gently lift up on the log and bracket Set aside 2 Inspect burner and primary air inlet holes on injector holder for dust and dirt see Figure 24 3 Blow air through the ports slots and holes in the burner 4 Check the injector holder located at the end of the burner tube again Remove any large particles of dust dirt lint or pet hair with a soft cloth or vacuum cleaner nozzle 5 Blow air into the primary air holes on the injector holder 6 Incase any large clumps of dust have now been pushed into the burner repeat steps 3 and 4 Figure 23 Removing Front Log to Clean Fro
18. com 17 OPERATING HEATER Continued 10 Continue holding down metal core for about 10 seconds and then release the metal core Pilot should stay lit If not repeat steps one through 4 page 17 11 Turn MAN Knob to ON position main gas flows 12 Turn Motor knob to adjust flame Knob has a slipping clutch that allows manual flame height adjustment TO TURN GAS OFF TO APPLIANCE Shutting Off Heater Press OFF button on remote control to switch off main gas and pilot gas or manually turn Motor Knob clockwise to the O OFF position Shutting Off Burner Only pilot stays lit Press to decrease the flame height and shut off main burner INSPECTING BURNERS Check pilot flame pattern and burner flame pat terns often PILOT FLAME PATTERN Figure 19 shows a correct pilot flame pattern Figure 20 shows an incorrect pilot flame pattern The incorrect pilot flame is not touching the thermocouple When the thermocouple cools the heater will shut down If pilot flame pattern is incorrect as shown in Figure 20 e turn heater off see To Turn Off Gas to Appli ance above or page 17 e see Troubleshooting page 20 Note The pilot flame on natural gas units will have a slight curve but flame should be blue and have no yellow or orange color Thermocouple Figure 19 Correct Pilot Flame Pattern Natural Gas Pilot Shown Thermocouple Figure 20 Incorrect Pilot Flame Pattern Natural Gas Pilot S
19. d free from combustible ma terials gasoline and other flam mable vapors and liquids 111826 04A www desatech com 10 11 SAFETY INFORMATION Continued This appliance is only for use with the type of gas indicated on the rating plate This appliance is not convertible for use with other gases Do not place propane LP supply tank s in side any structure Locate propane LP supply tank s outdoors propane LP units only 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 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 Before installing in a solid fuel burning fire place the chimney flue and firebox must be cleaned of soot creosote ashes and loose paint by a qualified chimney cleaner Creosote will ignite if highly heated Inspect chimney flue for damage If damaged repair flue before operating heater Do not burn solid fuel in a masonry or UL127 factory built fireplace in which a vent free room heater is installed If fireplace has glass doors never operate this heater with glass doors closed If you operate heater with doors closed heat buildup inside fireplace will cause glass to burst Make sure there
20. 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 Au thorized Service Center Warranty part s MUST be obtained through authorized dealers of this product and or DESA who will provide original factory replacement parts Failure to use original factory replacement parts voids this warranty The heater MUST be installed by a qualified installer in accordance with all local codes and instructions furnished with the unit This warranty does not apply to parts that are not in original condition because of normal wear and tear or parts that fail or become damaged as a result of misuse accidents lack of proper maintenance or defects caused by improper installation Travel diagnostic cost labor transportation and any and all such other costs related to repairing a defective heater will be the responsibility of the owner TO THE FULL EXTENT ALLOWED BY THE LAW OF THE JURISDICTION THAT GOVERNS THE SALE OF THE PRODUCT THIS EXPRESS WARRANTY EXCLUDES ANY AND ALL OTHER EXPRESSED WARRANTIES AND LIMITS THE DURATION OF ANY AND ALL IMPLIED WARRANTIES INCLUDING WA
21. e W button on the remote handset in the following 20 sec the receiver learns the new code Shut off Procedure e Tosave battery power press W to turn main gas to pilot gas Press OFF button to shut off the device including pilot flame The device can be shut off with ON OFF switch thus disabling the remote hand set Setting The Display C 24h and F 12h e Press and hold OFF and W until display changes from F and 12 hour clock to C and 24 hour clock or vice versa Setting The Time e After connecting the battery or by simulta neously pressing A and W the display will start to flash You are in the set mode From SET mode press A to set the hour and W to set the minute e Wait or press OFF to return to the manual mode sarr AB Bern FAO MAN TEMP TIMER Figure 16 Control Panel for Hand Held Remote Battery Replacement Remote handset battery needs to be changed when LED is dim Battery life expectancy is 2 to 3 years Replacement is recommended at the beginning of heating season Battery needs to be changed when acoustic error message appears during ignition see Identifying Error Signals from Receiver on page 23 Changing Mode of Operation e Press the SET button quickly to change the mode of operation in the following order MAN 4 TEMP Y TEMP TIMER e Manual flame height adjustment MAN ap pears on display Press A to turn on the fire main burner or to increase flame height Pres
22. ected fit tings for leaks Test Pressures Equal To or Less Than 1 2 PSIG 3 5 kPa 1 Close equipment shutoff valve see Figure 13 2 Pressurize supply piping system by either opening propane LP supply tank valve for propane LP gas or opening main gas valve located on or near gas meter for natural gas or using compressed air 3 Check all joints from gas meter to equipment shutoff valve for natural gas or propane LP sup ply to equipment shutoff valve for propane LP see Figure 14 or 15 Apply noncorrosive leak detection fluid to all joints Bubbles forming show a leak 4 Correct all leaks at once Equipment Shutoff Valve l Closed Figure 13 Equipment Shutoff Valve Equipment Shutoff Valve SOK XX Gas Meter SS Propane LP Supply Tank Equipment Shutoff Valve Control Valve Location Figure 15 Checking Gas Joints for Propane LP Gas PRESSURE TESTING HEATER GAS CONNECTIONS l 2 Open equipment shutoff valve see Figure 13 Open main gas valve located on or near gas meter for natural gas or open propane LP supply tank valve Make sure control knob of heater is in the OFF position Check all joints from equipment shutoff valve to control valve see Figure 14 or 15 Apply noncorrosive leak detection fluid to all joints Bubbles forming show a leak Correct all leaks at once Light
23. ecting it to gas piping and or fittings CHECKING GAS CONNECTIONS WARNING Testall gas piping and connections internal and external to unit for leaks after installing or servicing Correct all leaks at once AX WARNING Never use an open flame to check for a leak Apply anoncorrosive leak detec tion fluid to all joints Bubbles forming show a leak Correct all leaks at once A CAUTION Make sure exter nal regulator has been installed between propane LP supply and heater See guidelines un der Connecting to Gas Supply page 12 PRESSURE TESTING GAS SUPPLY PIPING SYSTEM Test Pressures In Excess Of 1 2 PSIG 3 5 kPa 1 Disconnect appliance with its appliance main gas valve control valve and equipment shutoff valve from gas supply piping system Pressures in excess of 1 2 psig will damage heater regulator 2 Cap off open end of gas pipe where equipment shutoff valve was connected 111826 04A www desatech com 13 INSTALLATION Continued 3 Pressurize supply piping system by either opening propane LP supply tank valve for propane LP gas or opening main gas valve located on or near gas meter for natural gas or using compressed air 4 Check all joints of gas supply piping system Apply noncorrosive leak detection fluid to all joints Bubbles forming show a leak un Correct all leaks at once 6 Reconnect heater and equipment shutoff valve to gas supply Check reconn
24. ediately 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 1 REMOTE LIGHTING INSTRUCTIONS A CAUTION A mild gas flash within 10 seconds is normal during shutdown of this heater Remain clear of the hearth area for the entire shutdown process to avoid possible injury 1 STOP Read the safety information begin ning on page 14 Make sure equipment shutoff valve is fully open Turn motor knob clockwise X to the OFF position Wait five 5 minutes to clear out any gas Then smell for gas including near the floor If you smell gas STOP Follow B in the safety information page 14 If you don t smell gas go to the next step Make sure ON OFF switch is in ON position WARNING Burner will come on automatically within one min ute after pilot burner is lighted Ad WARNING e If fireplace has glass doors never operate this heater with glass doors closed If you op erate heater with doors closed heat buildup inside fireplace will cause glass to burst Make sure there are no obstructions across openings of fireplace e 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 pr
25. ery consumption decrease the night temperature until appears on display 16 www desatech com 111826 04A OPERATING HEATER Continued Set Timer e Switch to timer mode by pressing the SET button briefly e Press the SET button until P1 flashes Set the hours with and minutes with v e Press SET briefly for the next burner cycle time e Ifall 4 times are set pressing the OFF button or waiting will complete the programming UN TO TURN GAS OFF NN TO APPLIANCE Shutting Off Heater Press OFF button on remote control to switch off main gas and pilot gas Shutting Off Burner Only pilot stays lit Press to decrease the flame height and shut off main burner MANUAL LIGHTING EN PROCEDURE Ay WARNING Manual lighting must be performed by a qualified service person The system has a MANUAL OVERRIDE feature that allows you to light with a match Lighting with a Match 1 STOP Read the safety information on page 14 2 Make sure equipment shutoff valve is fully open 3 Turn motor knob clockwise to AA to OFF position 4 Wait 5 minutes to clear any gas and then smell for gas around heater and near floor If you smell gas STOP follow B on page 14 If you do not smell gas go to the next step 5 Make sure ON OFF switch is in ON position 6 MAN knob valve in MAN position a metallic core is visible see Figure 17 7 Push and hold down metal core fully by
26. es ent Open damper or window to vent smell This will only last a few hours 6 Press the buttons A and A at the same time A short acoustic signal confirms the start sequence has begun Further short acoustic signals 0 2 sec 1 Hz indicate the ignition process until it is com pleted and main gas flows If pilot is already lit motor will turn on max flame height while buttons are pressed down If pilot does not light see Troubleshooting page 20 Press A to turn on main burner and in crease flame height Press v to decrease flame height and shut off main burner Short tapping of either button allows incre mental change in flame height Press OFF button to switch off main gas and pilot gas FUNCTIONS OF REMOTE CONTROL Battery After the charged battery has been correctly installed the remote hand set is ready for operations e Remove the battery if the remote handset will not be used more than one year 111826 04A www desatech com 15 OPERATING HEATER Continued Changing The Code The control is radio frequency operated A code chosen from among 4 000 available codes is preset for all valves but can be changed if required 15 additional codes available Change DIP switch position The DIP switch is located inside the hand held control at the top of the battery compart ment Then press the receiver s reset button until you hear a second longer signal When pressing th
27. heater see Operating Heater Check all other internal joints for leaks Turn off heater see To Turn Off Gas to Appli ance page 17 or 18 OPERATING HEATER FOR YOUR SAFETY RE AD BEFORE LIGHTING A WARNING If you do not fol low these instructions exactly a fire or explosion may result causing property damage per sonal injury or loss of life A This appliance has a pilot which must be lighted by hand When lighting the pilot follow these instructions exactly B BEFORE LIGHTING smell all around the appliance area for gas Be sure to smell next Control Valve to the floor because some gas is heavier than Location air and will settle on the floor Figure 14 Checking Gas Joints for Natural Gas 14 www desatech com 111826 04A OPERATING HEATER Continued WHAT TO DO IF YOU SMELL GAS Do not try to light any appliance Do not touch any electric switch do not use any phone in your building e Immediately call your gas supplier from a neighbor s phone Follow the gas supplier s instructions e If you cannot reach your gas supplier call the fire department C Use only your hand to push in or turn the gas control knob Never use tools If the knob will not push in or turn by hand don t try to repair it call a qualified service tech nician or gas supplier Force or attempted repair may result in a fire or explosion D Do not use this appliance if any part has been under water Imm
28. hown BURNER FLAME PATTERN Figure 21 shows correct burner flame pattern NOTICE Do not mistake orange flames with yellow tipping Dirt or other fine particles are burned by heater causing brief patches of orange flame If burner flame pattern is incorrect as shown in Figure 22 e turn appliance off see To Turn Off Gas to Ap pliance in column 1 or page 17 e see Troubleshooting page 20 Figure 21 Correct Burner Flame Pattern Yellow Tipping at Top of Blue Flame Figure 22 Correct Burner Flame Pattern 18 www desatech com 111826 04A CLEANING AND MAINTENANCE WARNING Turn off heater and let cool before cleaning AX CAUTION Youmustkeepcon trol areas burner and circulating air passageways 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 pet hair etc AX WARNING Failure to keep the primary air opening s of the burner s clean may resultin sooting and property damage BURNER INJECTOR HOLDER AIR INLET HOLE The primary air inlet holes allow the proper amount of air to mix with the gas This provides a clean burning flame Keep these holes clear of dust dirt lint and pet hair Clean these air inlet holes prior to each heating season Blocked air holes will create soot We recommend th
29. i I 1 I l 1 l 1 I ji I j 1 j 1 l 1 l 1 I 1 i I I i I l l l 1 f I I 1 I l l 1 1 i 1 J Thermocouple Battery nearly down When signal appears the first time ap proximately 10 ignitions left Cable is not connected ON OFF switch is in OFF position Ignition not successful possible air in supplyline WIRING DIAGRAM Replace battery Connect cables Swit to ON Repeat procedure Thermocurrent ON OFF Switch Optional Interrupter Block A ard 1h io OFF ARI ES i ON IT sani tee Tay a a LIS 8 Wire Connecting Cable or ON OFF Switch Soldered Cable 4 AA Batteries Motor Knob Thermocurrent Cable 2 Thermocurrent Cable 1 111826 04A www desatech com 23 SERVICE HINTS When Gas Pressure Is Too Low e pilot will not stay lit burners will have delayed ignition e propane LP gas supply may be low You may feel your gas pressure is too low If so contact your local propane LP or natural gas supplier TECHNICAL SERVICE You may have further questions about installation operation or troubleshooting If so contact DESA s Technical Service Department at 1 866 672 6040 When calling please have your model and serial numbers of your appliance ready You can also visit DESA s technical services web site at www desatech com REPLACEMENT PAR
30. ial Min l SN S Nonicorbustibie Material Figure 8 Minimum Fireplace Clearances If Installed at Floor Level Hearth Combustible Material i Min Figure 9 Minimum Fireplace Clearances Above Combustible Flooring INSTALLING HEATER ASSEMBLY caution Do not remove the data plates attached to the heater base assembly The data plates contain important warranty and safety information 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 in sure adequate air flow and guard against sooting and controls be ing damaged Raise fireplace floor with noncombustible material Make sure material is secure AX CAUTION Do not pick up heater assembly by the logs This could damage heater Only han dle base assembly by grates IMPORTANT Make sure the heater burner is level If heater is not level heater will not work properly 111826 04A www desatech com 11 INSTALLATION Continued Installation Items Needed e control cover kit provided with heater e approved flexible gas hose not provided if allowed by local codes e sealant resistant to propane LP gas not provided 1 Apply pipe joint sealant lightly to male threads of gas fitting not provided Connect approved flexible gas hose to inlet side of gas control see Figure 10 IMPO
31. ications INSTA cria 8 ACCESSOS siii rr Operating Heatet soins 14 Illustrated Parts Breakdown and Parts List Inspecting Burners ooocoonccinccconcconcccnoncnancnnnanonns 18 Warranty Information Cleaning and MaintenanCe ooooccnccccicconoccciccconno 19 www desatech com 111826 04A SAFETY INFORMATION WARNING This productcon tains and or generates chemicals known to the State of California to cause cancer or birth defects or other reproductive harm IMPORTANT Read this owners manual carefully and completely before trying to assemble operate or service this heater Improper use of this heater can cause serious injury or death from burns fire explosion electrical shock and carbon monoxide poisoning AX DANGER Carbon monoxide poisoning may lead to death Carbon Monoxide Poisoning Early signs of carbon monoxide poisoning resemble the flu with head aches dizziness or nausea If you have these signs the heater may not be working properly Get fresh air at once Have heater serviced Some people are more affected by carbon monoxide than others These include pregnant women people with heart or lung disease or anemia those under the influence of alcohol and those at high altitudes Natural and Propane LP Gas Natural and pro pane LP gases are odorless An odor making agent is added to these gases The odor helps you detect a gas leak However the odor added to the gas can fade
32. l Log Ember Kit 1 Log Ember Kit 2 Ember Flakes Kit Gas Line Flex with Shut Off E AAA AE ce E O N 111826 04A www desatech com 27 ILLUSTRATED PARTS BREAKDOWN MODELS VF 24N PJD AND VF 24P PJD 28 www desatech com 111826 04A KEY NO ANODaABRWDNDM PARTS AVAILABLE NOT SHOWN PARTS LIST This list contains replaceable parts used in your heater When ordering parts follow the instructions listed under Replacement Parts on page 24 of this manual PART NUMBER VF 24N PJD 111811 01 116672 01 116673 01 116673 02 112814 06 112828 01 112829 01 114365 01 114365 02 111824 01 111817 05 112812 02 112812 06 111804 05 112812 05 116331 01 111817 06 116680 04 104285 01 116337 01 116329 01 111817 03 111828 01 M11084 26 116680 02 116680 04 116880 06 116680 09 100563 01 112796 01 100639 05 112363 01 112364 01 112799 01 111288 02 VF 24P PJD 111811 01 116672 02 116673 01 116673 02 112814 06 112828 01 112829 01 114365 03 114365 03 111824 01 111817 05 112812 02 112812 06 111804 05 112812 05 116331 01 111817 06 116680 05 104286 01 116329 01 111817 03 111828 01 M11084 26 116680 02 116680 05 116680 06 116680 09 100563 01 112796 01 100693 05 112363 01 112364 01 112799 01 111288 02 Not a field replaceable part DESCRIPTION Chassis Grate PJD Remote Valve PJD Module Maxitrol Hand Held Remote Control Valve Bracket Rear Burner
33. list contains replaceable parts used in your heater When ordering parts follow the instructions listed under Replacement Parts on page 24 of this manual PART NUMBER VF 18N PJD 112791 01 116672 01 116673 01 116673 02 112814 06 116328 01 116559 01 114365 04 114365 05 111824 01 111817 05 116336 01 112812 06 111804 08 112812 05 116242 01 111817 06 104285 01 098249 01 116329 02 111817 03 111828 01 M11084 26 116680 01 116680 07 116680 08 100563 01 112796 01 100639 05 112363 01 112364 01 112799 01 111288 02 VF 18P PJD 112791 01 116672 02 116673 01 116673 02 112814 06 116328 01 116559 01 114365 06 114365 06 111824 01 111817 05 116336 01 112812 06 111804 08 112812 05 116242 01 111817 06 104286 01 098249 01 116329 02 111817 03 111828 01 M11084 26 116680 01 116680 07 116680 08 100563 01 112796 01 100693 05 112363 01 112364 01 112799 01 111288 02 Not a field replaceable part DESCRIPTION Chassis Grate PJD Remote Valve PJD Module Maxitrol Hand Held Remote Control Valve Bracket Rear Burner Air Shutter Orifice Front Orifice Rear 3 8 Nut Sleeve Rear Flextube Rear Log Plate Left Burner Bracket Front Burner Right Burner Bracket Log Support Bracket Front Flextube ODS Pilot ODS Nut Front Log Bracket 3 16 Flextube 3 16 Nut Sleeve Screw 10 24 x 375 Front Log Kit Ember Pod Kit Back Log Kit Warning Plate Lighting Instructions Plate Caution Deca
34. mage heater Always handle assembly by grate Remove control cover floor media components 3 Remove all protective packaging applied to log set for shipment 3 Check all items for any shipping damage 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 realistic flames and glowing ceramic logs coals This heater is designed for vent free operation with flue damper closed It has been tested and approved to ANSI Z21 11 2 standard for unvented heaters State and local codes in some areas prohibit the use of vent free heaters SAFETY PILOT This heater has a pilot with an Oxygen Deple tion Sensing ODS safety shutoff system The ODS pilot is a required feature for vent free room heaters The ODS pilot shuts off the heater if there is not enough fresh air REMOTE IGNITION AND CONTROL This gas log set has a battery powered electronic remote ignition and control This system requires no matches or other source to light log set AIR FOR COMBUSTION AND VENTILATION AX WARNING This heater shall not be installed in a confined space or unusually tight con struction unless provisions are provided for adequate combus tion and ventilation air Read the following instructions to insure proper fresh air for this and other fuel burning appliances in your home
35. mbustion air from the outdoors and vents to the outdoors Example 40 000 Gas water heater Btu Hr Vent free fireplace 33 000 Btu Hr Total 73 000 Btu Hr 4 Compare the maximum Btu Hr the space can support with the actual amount of Btu Hr used Btu Hr maximum the space can support Btu Hr actual amount of Btu Hr used 51 200 Btu Hr maximum the space can support 73 000 Btu Hr actual amount of Btu Hr used The space in the example is a confined space because the actual Btu Hr used is more than the maximum Btu Hr the space can support You must provide ad ditional fresh air Your options are as follows Example A Rework worksheet adding the space of an adjoin ing 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 Ventila tion Air From Outdoors page 7 C Install a lower Btu Hr fireplace if lower Btu Hr size makes room unconfined 6 www desatech com 111826 04A AIR FOR COMBUSTION AND VENTILATION Continued If the actual Btu Hr used is less than the maximum Btu Hr the space can support the space is an uncon fined space You will need no additional fresh air ventilation AX WARNING If the area in which the heater may be oper ated is smaller than that defined as an unconfined space or if the building is of unusually tight cons
36. n and Ventilation requirements page 5 111826 04A www desatech com 21 TROUBLESHOOTING Continued building A WARNING If you smell gas e Shut off gas supply e Do not try to light any appliance e Do not touch any electrical switch do not use any phone in your e Immediately call your gas supplier from a neighbor s phone Fol low the gas supplier s instructions e 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 Remote does not function 1 Battery is not installed Bat 1 Replace 9 volt batteries in tery power is low receiver and remote control 2 Bad module 2 Star Heater produces a clicking tick 1 Metal expanding while heating 1 This is common with most heat ing noise just after burner is lit or contracting while cooling ers Ifnoise is excessive contact or shut off qualified service person Heater produces unwanted 1 Heater burning vapors from 1 Open window to ventilate odors paint hair spray glues clean room Stop using odor caus ers chemicals new carpet ing products while heater is etc See IMPORTANT state running ment abo
37. ngs and mantel shelf on each side of the fireplace If you do not meet the clearances listed below you will need a hood Determining Minimum Mantel Clearance If you meet minimum clearance between mantel shelf and top of fireplace opening a hood is not required see Figure 6 page 10 Determining Minimum Mantel Clearance When using a Hood If minimum clearances in Figure 6 page 11 are not met you must have a hood When using a hood there are still certain minimum mantel clearances required Follow minimum clearances shown in Figure 7 page 10 when using hood NOTICE Surface temperatures of adjacent walls and mantels be come hot during operation Walls and mantels above the firebox may become hot to the touch If installed properly these tem peratures meet the requirement ofthe national productstandard Follow all minimum clearances shown in this manual NOTICE Ifyourinstallation does not meet the minimum clear ances shown you must do one of the following e operate the logs only with the flue damper open e raise the mantel to an accept able height 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 B If combustible materials are less than 14 to the fireplace you must install appliance at least 5 above the combustible flooring see Figure 9 Combustible 14 Mater
38. ngs not furnished with doors are considered a part of the unconfined space Adjoining rooms are communicating only if there are doorless passageways or ventilation grills between them DETERMINING FRESH AIR FLOW FOR HEATER LOCATION Determining if You Have a Confined or Unconfined Space Use this work sheet to determine if you have a confined or unconfined space Space Includes the room in which you will install heater plus any adjoining rooms with doorless pas sageways or ventilation grills between the rooms 1 Determine the volume of the space length x width x height Length x Width x Height volume of space Example Space size 20 ft length x 16 ft width x 8 ft ceiling height 2 560 cu ft volume of space cu ft If additional ventilation to adjoining room is supplied with grills or openings add the volume of these rooms to the total volume of the space 2 Multiply the space volume by 20 to determine the maximum Btu Hr the space can support volume of space x 20 Maxi mum Btu Hr the space can support Example 2 560 cu ft volume of space x 20 51 200 maximum Btu Hr the space can support 3 Add the Btu Hr of all fuel burning appliances in the space Vent free fireplace Btu Hr Gas water heater Btu Hr Gas furnace Btu Hr Vented gas heater Btu Hr Gas fireplace logs Btu Hr Other gas appliances Btu Hr Total Btu Hr Do not include direct vent gas appliances Di rect vent draws co
39. nnected to any external electrical source To prevent performance problems do not use propane LP fuel tank of less than 100 lb capacity propane LP units only Operating heater above elevations of 4 500 feet could cause pilot outage Provide adequate clearances around air openings State of Massachusetts The installa tion must be made by a licensed plumber or gas fitter in the Commonwealth of Massachusetts Sellers of unvented propane or natural gas fired supplemental room heaters shall provide to each purchaser a copy of 527 CMR 30 upon sale of the unit Vent free gas products are prohibited for bedroom and bathroom installation in the Commonwealth of Massachusetts PRODUCT IDENTIFICATION Chassis Assembly Hand Held Remote Control Figure 1 Product Identification www desatech com 111826 04A LOCAL CODES Install and use heater with care Follow all local codes In the absence of local codes use the lat est edition of The National Fuel Gas Code ANSI Z223 1 NFPA 54 Available from American National Standards Institute Inc 1430 Broadway New York NY 10018 National Fire Protection Association Inc Batterymarch Park Quincy MA 02269 UNPACKING AA CAUTION Donotremovethe data plates from the grate as sembly The data plates contain important warranty and safety information 1 Remove log set assembly from carton Note Do not pick up assembly by logs This could da
40. nt Burner Burner Tube Injector Holder Primary Air Inlet Opening Figure 24 Injector Holder on Front Burner Tube Injector 111826 04A www desatech com 19 TROUBLESHOOTING A WARNING Turn off heater and let cool before servicing Only a qualified service person should service and repair heater A CAUTION Never use a wire needle or similar object to clean ODS pilot This can damage ODS pilot unit Note All troubleshooting items are listed in order of operation OBSERVED PROBLEM POSSIBLE CAUSE REMEDY When and A are pressed at the same time there is no spark at ODS pilot 1 Ignitor electrode not con nected to ignitor cable 2 Ignitor cable pinched or wet Broken ignitor cable Bad piezo ignitor Ignitor electrode positioned wrong or broken 6 Bad module On B amp W iF 2 On B amp W Reconnect ignitor cable Free ignitor cable if pinched by any metal or tubing Keep ignitor cable dry Replace ignitor cable Replace piezo ignitor Replace pilot assembly Replace module When and A are pressed there is spark at ODS pilot but no ignition 1 Gas supply turned off or equip ment shutoff valve closed 2 Control knob not in PILOT position 3 Control knob not pressed in while in PILOT position 4 Air in gas lines when in stalled 5 Depleted gas supply pro pane LP only 6 ODS pilot is clogged 7 Gas regulator setting is not c
41. om 5 AIR FOR COMBUSTION AND VENTILATION Continued Unusually tight construction is defined as construction where a walls and ceilings exposed to the out side atmosphere have a continuous water vapor retarder with a rating of one perm 6 x 10 kg per pa sec m or less with openings gasketed or sealed and b weather stripping has been added on openable windows and doors and_ 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 home meets all of the three criteria above you must provide additional fresh air See Ventilation Air From Outdoors page 7 If your home does not meet all of the three criteria above proceed to Determining Fresh Air Flow For Heater Location Confined and Unconfined Space The National Fuel Gas Code ANSI Z223 1 NFPA 54 defines a confined space as a space whose volume is less than 50 cubic feet per 1 000 Btu per hour 4 8 m per 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 m per kw of the aggregate input rating of all appliances installed in that space Rooms com municating directly with the space in which the appliances are installed through openi
42. orrect 8 Bad module Turn on gas supply or open equipment shutoff valve Turn control knob to PILOT position Press in control knob while in PILOT position Continue holding down con trol knob Repeat igniting op eration until air is removed Contact local propane LP gas company Clean ODS pilot see Cleaning and Maintenance page 19 or replace ODS pilot assembly Replace gas regulator Replace module Burner does not light after pilot is lit 1 Inlet gas pressure is too low 2 Burner orifice s clogged 3 Burner orifice s diameter is too small 4 Wire disconnected from gas control 5 Bad module Contact local natural or pro pane LP gas company Clean burner see Cleaning and Maintenance page 19 or replace burner orifice s Replace burner orifice s Reconnect leads see Wiring Diagram page 24 Replace module Delayed ignition burner 1 Manifold pressure is too low 2 Burner orifice s clogged Contact local natural or pro pane LP gas company Clean burner see Cleaning and Maintenance page 19 or replace burner orifice 20 www desatech com 111826 04A TROUBLESHOOTING OBSERVED PROBLEM Continued POSSIBLE CAUSE REMEDY Burner backfiring during com bustion 1 Burner orifice is clogged or damaged 2 Damaged burner 3 Gas regulator defective 1 Clean burner see Cleaning and Maintenance page 19
43. r building codes for any special re quirements for locating equipment shutoff valve to fireplaces Apply pipe joint sealant lightly to male NPT threads This will prevent excess sealant from going into pipe Excess sealant in pipe could result in clogged heater valves AX WARNING Use pipe joint sealant that is resistant to liquid petroleum LP gas CSA Design Certified Equipment Shutoff Valve With 1 8 NPT Tap To Gas Control Natural Gas From Gas Meter 5 W C to 10 5 W C Pressure Propane LP Gas From External Regulator 11 W C to 14 W C west Cap Pipe Tee Nipple Joint Approved Flexible Gas Hose if allowed by local codes 3 Minimum T Sediment Trap Figure 12 Gas Connection Purchase the optional CSA design certified equipment shutoff valve from your dealer See Accessories page 25 Minimum inlet pressure for purpose of input adjustment We recommend that you install a sediment trap in supply line as shown in Figure 12 Locate sediment trap where it is within reach for cleaning Install in piping system between fuel supply and heater Locate sediment trap where trapped matter is not likely to freeze A sediment trap traps moisture and contaminants This keeps them from going into heater controls If sediment trap is not installed or is installed wrong heater may not run properly A CAUTION Avoid damage to gas control Hold gas control with wrench when conn
44. s W to decrease flame or to go down to pilot only The receiver acknowledges the transmission with an acoustic signal The day time temperature mode OK TEMP ap pears on display The sensor in the transmitter measures room temperature The controller compares the room temperature with set tem perature and sends a signal to the receiver to turn the gas valve motor up or down to adjust the flame height accordingly e The nighttime setback temperature D TEMP appears on display The sensor in the transmitter measures the temperature and adjusts it according to the nighttime setback temperature There is a bigger temperature differential during this cycle Timer The timer mode TIMER operates much like the temperature mode above The timer setting allows you to set specific times for on and off There are 2 burner on and 2 burner off cycles every 24 hours If the reading for the nighttime temp is the motor will turn off the valve to standby pilot position and wait for the next burner on cycle This display shows the setting tem perature every 30 seconds Setting the Temperature Select the desired mode of operation day or night by pressing the SET button briefly e Hold the SET button until the display flashes Set the temperature with the A or v 40 F is the minimum temperature e Wait or press OFF to go to temperature control mode Iftemperature control in moon times should be off lower batt
45. stallation only in a solid fuel burning masonry or UL127 factory built fire place or in a listed ventless firebox enclosure It is de sign certified for these installations in accordance with ANSI Z21 11 2 Exception Do not install this appliance in a factory built fireplace that includes instructions stating it has not been tested or should not be used with unvented gas logs WARNING This is an unvented gas fired heater It uses air oxygen from the room in which it is installed Provi sions for adequate combustion and ventilation air must be provided Refer to Air for Combustion and Ventilation section on page 5 of this manual This appliance may be installed in an aftermarket per manently located manufactured mobile home where not prohibited by local codes This appliance is only for use with the type of gas indi cated on the rating plate This appliance is not convert ible for use with other gases Aftermarket Completion of sale not for purpose of resale from the manufacturer TABLE OF CONTENTS Safety Information iitratia 3 Troubleshooting sic ceci Product Identification 0 ccceceeeseeeeeeeeeeeteeees 4 Wiring Diagram Local COGS ns ici rra 5 Service Hints UnpaCkING a irritere ese serora eaan raren eeraa 5 Technical Service Product FOatures sisiesscescevsccecccsessensvicscocneseaeede 5 Replacement Parts Air For Combustion and Ventilation 5 Specif
46. stible Material Requirements for Distance A Safe Installation P 12 or more Noncombustible material OK oo gt Between 8 24 Model Install fire place hood accessory and 12 GA6060 see Accessories page 25 18 Model Noncombustible material OK Less than 8 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 Figure 5 Heat Resistant Material Slate Marble Tile etc Above Fireplace Mantel Shelf A Underside of Mantel Shelf A All minimum distances are Y in inches Minimum Non gt Combustible A Material 12 18 20 J22 24 Y Y Top of Fireplace LY v J Opening Minimum Non Distances to Combustible Underside of Material Height Mantel Figure 6 Minimum Mantel Clearances Without Using Hood Mantel Shelf Underside A of Mantel T Shelf All minimum distances are Minimum in inches Noncombustible Material er liar lis lig 20 Min Y Y Top of Fireplace Openin Hood Distances to Pong GA6050 Underside of LE GA60520r Mantel A GA6053 ok Figure 7 Minimum Mantel Clearances When Using Hood www desatech com 111826 04A INSTALLATION Continued MANTEL CLEARANCES In addition to meeting noncombustible material clearances you must also meet required clearances between fireplace openi
47. truction provide adequate combustion and ventilation air by one of the methods described in the National Fuel Gas Code ANSI Z223 1 NFPA 54 Section 5 3 or applicable local codes VENTILATION AIR Ventilation Air From Inside Building This fresh air would come from an adjoining un confined space When ventilating to an adjoining unconfined space you must provide two permanent openings one within 12 of the ceiling and one within 12 of the floor on the wall connecting the two spaces see options and 2 Figure 2 You can also remove door into adjoining room see option 3 Figure 2 Follow the National Fuel Gas Code ANSI Z223 1 NFPA 54 Section 5 3 Air for Combustion and Ventilation for required size of ventilation grills or ducts wl 0 1 A _ 7 Ventilation Grills Ventilation Grills Into Adjoining Or Into Adjoining Room Room Option 2 Option 1 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 permanent openings one within 12 of the ceiling and one within 12 of the floor Connect these items directly to the outdoors or spaces open to the outdoors These spaces include attics and crawl spaces Follow the National Fuel Gas Code ANSI Z223 1 NFPA 54 Section 5 3 Air for Combustion and Ventilation for required size of ventilation grills or ducts
48. ve 2 Low fuel supply propane LP 2 Refill supply tank propane LP only only 3 Gas leak See Warning 3 Locate and correct all leaks statement at top of page see Checking Gas Connec tions page 13 Heater shuts off in use ODS 1 Not enough fresh air is avail 1 Open window and or door for operates able ventilation 2 Low line pressure 2 Contact local natural or pro pane LP gas company 3 ODS pilot is partially 3 CleanODS pilot see Cleaning clogged and Maintenance page 19 4 Thermostat on remote is 4 Adjust temperature satisfied Gas odorevenwhencontrolknob 1 Gas leak See Warning 1 Locate and correct all leaks is in OFF position statement at top of page see Checking Gas Connec tions page 13 2 Control valve or gas control 2 Replace control valve or gas defective control Gas odor during combustion 1 Foreign matter between con 1 Take apart gas tubing and trol valve and burner remove foreign matter 2 Gas leak See Warning 2 Locate and correct all leaks statement at top of page see Checking Gas Connec tions page 13 22 www desatech com 111826 04A TROUBLESHOOTING Continued IDENTIFYING ERROR SIGNALS FROM RECIEVER OBSERVED PROBLEM POSSIBLE CAUSE REMEDY Long signals 0 8 second tone 0 2 second break during ignition 5 second continuous tone 5 short signals 8 2 second tone 0 2 second break Battery Compartment l MAN Knob l 1 1 1 fi 1 I 1 fi ji I I
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