Desa FVFM27NR/PR User's Manual
Contents
1. IMPORTANT Vent free heaters add mois ture 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 Com bustion and Ventilation pages 4 through 6 CHECK GAS TYPE Use only the correct type of gas natural or propane LP If your gas supply is not the correct gas type do not install heater Call dealer where you bought heater for proper type heater INSTALLATION AND CLEARANCES Vent Free Operation Only AX WARNING Maintain the mini mum clearances If you can pro vide greater clearances from floor ceiling and adjoining wall MINIMUM FIREPLACE CLEARANCE TO COMBUSTIBLE MATERIALS Log Size Side Wall Ceiling 27 16 42 LOG SIZING REQUIREMENTS Log Minimum Firebox Size Height Depth Width 27 17 19 32 Carefully follow the instructions below This will ensure safe installation into a masonry UL127 listed manufactured fireplace or listed vent free firebox Minimum Clearances For Side Combustible Material Side Wall and Ceiling A Clearances from the side of the fire place cabinet to any combustible ma terial and wall should follow diagram in Figure 4 Example The face of a mantel book shelf etc is made of combustible ma terial and protrudes 3 from the wall This combustible material must be 4 from the side of the2. 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 and free from combustible materials gasoline and other flammable vapors and liquids AX WARNING Any change to this heater or its controls can be dangerous AX WARNING Do not allow fans to blow directly into the fireplace Avoid any drafts that alter burner flame patterns Ceiling fans can create drafts that alter burner flame patterns Altered burner patterns can cause sooting A WARNING Do not use a blower insert heat exchanger insert or other accessory not ap proved for use with this heater For more information visit www desatech com 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 inside any structure Locate propane LP supply tank s outdoors To prevent performance problems the use of a propane LP tank of less than 100 lbs capacity is not recommended 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 10 11 12 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 d
3. A CAUTION Avoid damage to control Hold fitting with wrench when connecting it to gas piping and or fittings CSA Design Certified Equipment Shutoff Valve With 1 8 NPT Tap Approved Flexible Gas Hose if allowed by local codes Gas Control Figure 14 Gas Connection Purchase the optional CSA design certified equipment shutoff valve from your dealer See Accessories page 24 CHECKING GAS CONNECTIONS A WARNING Test all gas pip ing and connections for leaks after installing or servicing Cor rect all leaks at once WARNING Never use an open flame to check for a leak Apply a noncorrosive leak detection fluid to all joints Bubbles forming show a leak Correct all leaks at once A CAUTION For propane LP gas make sure external regula tor has been installed between propane LP supply and heater See guidelines under Connect ing to Gas Supply page 11 From Gas Meter for 10 5 W C Pressure W C to 14 W C 9 Pressure Sediment Trap Minimum inlet pressure for purpose of input adjustment For more information visit www desatech com 12 natural gas 5 W C to From External Regulator for propane LP gas 11 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 equip ment shutoff valve from gas supply pip ing
4. 30 Incorrect Flame Pattern BURNER PRIMARY AIR HOLES Air is drawn into the burner through the holes in the fitting at the burner entrance These holes may become blocked with dust or lint Periodically inspect these holes for any blockage and clean if needed Blocked air holes will create soot MAIN BURNER Periodically inspect all burner flame holes with the heater running All slotted burner flame holes should be open with yellow flame present All round burner flame holes should be open with a small blue flame present Some burner flame holes may be come blocked by debris or rust with no flame present If so turn off heater and let cool Remove blockage Blocked burner flame holes will create soot 108382 OWNER S MANUAL CLEANING AND MAINTENANCE AX WARNING Turn off heater and let cool before cleaning A CAUTION You must keep control areas burner and circu lating air passageways of heater clean Inspect these areas of heater before each use Have heater inspected yearly by a quali fied service person Heater may need more frequent cleaning due to excessive lint from carpeting bedding material pet hair etc CLEANING BURNER INJEC TOR HOLDER AND PILOT AIR INLET HOLE The primary air inlet holes allow the proper amount of air to mix with the gas This pro vides a clean burning flame Keep these holes clear of dust dirt lint and pet hair Clean these air inlet holes prior to each
5. 6040 You can also visit DESA International s technical services web site at www desatech com REPLACEMENT PARTS Note Use only original replacement parts This will protect your warranty coverage for parts replaced under warranty PARTS UNDER WARRANTY Contact authorized dealers of this product If they can t supply originalreplacement part s call DESA International s Technical Service Department at 1 866 672 6040 When call ing DESA International have ready e your name and address e model and serial numbers of your heater e how heater 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 International at 1 866 672 6040 for referral information When calling DESA International have ready e model number of your heater e the replacement part number 21 For more information visit www desatech com FLAME MAX UNVENTED GAS LOG HEATER ILLUSTRATED PARTS BREAKDOWN VYM27NR FVFM27NR VYM27PR FVFM27PR NOTE Part numbers 22 and 23 are for natural gas model only For more information visit www desatech com 22 108382 OWNER S MANUAL PA RTS L l ST This list contains replaceable parts used in your heater When ordering parts follow the instructions
6. GAS LOG HEATER ACCESSORIES Purchase these heater accessories from your local dealer If they can not supply these accessories call DESA International at 1 800 458 6860 for referral informa tion You can also write to the address listed on the back page of this manual EQUIPMENT SHUTOFF VALVE GA5010 For allmodels Equipment shutoff valve with 1 8 NPT tap Fits 1 2 NPT pipe 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 RECEIVER AND HAND HELD THERMOSTAT REMOTE CONTROL KIT GHRCTA SERIES For all models Allows the gas log heater to be operated in a manually or thermostati cally controlled mode You can turn the gas log heater on and off without ever leaving the comfort of your easy chair RECEIVER AND HAND HELD REMOTE CONTROL KIT GHRC For all models Allows the gas log heater to be turned on and off by using a hand held remote control For more information visit www desatech com 24 LAVA ROCK GA6060 Not Shown For all models Order when additional rock is desired 3 Ib bag WALL MOUNT THERMOSTAT SWITCH GWMT1 Not Shown For all models The desired comfort setting can be selected on the wall thermostat and the log heater will automatically cycle from pilot to the heat setting selected WALL MOUNT ON OFF SWITCH GWMS2 Not Shown For all
7. Knob Figure 1 Product Identification LOCAL CODES Install and use heater with care Follow all local codes In the absence of local codes use the latest edition of The National Fuel Gas Code ANSI Z223 1 NFPA 54 Available from American National Standards Institute Inc 1430 Broadway New York NY 10018 National Fire Protection Association Inc Batterymarch Park Quincy MA 02269 Note Where listed vented decorative logs are required thermostat operation is not permitted 108382 HESS cts Ve E Flaine Eg Adjustment og Set L Control Knob UNPACKING A CAUTION Do not remove the metal data plates from the grate assembly The data plates contain important product information Base Assembly 1 Remove logs and heater base assem bly from carton Note Do not pick up heater base assembly by the burner This could damage heater Always handle base assembly by grate 2 Remove all protective packaging ap plied to logs and heater for shipment 3 Check all items for any shipping dam age If damaged promptly inform dealer where you bought heater PRODUCT FEATURES OPERATION This heater is clean burning It requires no outside venting There is noheatloss out a vent orupachimney Heat is generated by realistic dancing yellow flames This heater is de signed for vent free operation with flue damper closed It has been tested and approved to ANSIZ21 11 2 standard
8. Room O Office Warehouse O Utility Shed Outbuilding Garage Bedroom OBathroom O Other If you bought this product yourself did you plan to purchase this type of product before going into the store O Yes O No Who selected the product O Male O Female O Both 4 What is the population of your area O Under 10 000 O 10 000 to 25 000 O 25 000 to 50 000 O 50 000 to 100 000 O 100 000 to 250 000 Over 250 000 5 What is your primary source of heat O Propane LP Gas O Fuel Oil Wood ONaturalGas O Electric O Other 6 How was the product installed O Professional Installer Self O Other 7 Cost of product excluding sales tax 8 Cost to install product 9 Type of store where product was purchased O Hardware O Propane Dealer O Natural Gas Utility Co Home Center Builder s Supply O Fireplace or Hearth Shop O Farm Store O Other 10 What motivated you to buy this product Sudden Cold Weather Replace Older Model O D I Y Home Project O Emergency Back Up Heat O Heater was on Sale O Energy Savings High Efficiency Construction Project O Other 11 How did you learn about this product brand O Advertising O Relative or Friend Store Display O Other 12 Level of Education of Purchaser O Some High School Completed High School Completed College O Completed Graduate School 13 Age of Purchaser O Under 20 O20 29 O30 39 O40 49 O50 59 O60 or Over 14 Buyer s total annual household income O Under 15 000 O 15 000 to 19 999 O
9. The air that leaks around doors and win dows may provide enough fresh air for combustion and ventilation However in buildings of unusually tight construction you must provide additional fresh air Unusually tight construction is de fined as construction where a walls and ceilings exposed to the outside atmosphere have a con tinuous water vapor retarder with a rating of one perm 6x10 kg per pa sec m 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 be tween sole plates and floors be tween wall ceiling joints be tween wall panels at penetra tions for plumbing electrical and gas lines and at other openings If your home meets all of the three criteria above you must provide ad ditional fresh air See Ventilation Air From Outdoors page 6 If your home does not meet all of the three criteria above proceed to De termining Fresh Air Flow For Heater Location page 5 For more information visit www desatech com 4 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 appli ances installed in that space and an uncon fined space as a space whose volume is not less than 5
10. at least 8 up for all models If noncombustible material is less than 12 you must install the fireplace hood accessory See Figure 5 at right 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 10 If Using Mantel You must have noncombustible material s above the fireplace opening Noncombus tible materials such as slate marble tile etc must be at least 1 2 inch thick With sheet metal you must have noncombustible material behind it Noncombustible mate rial must extend at least 8 inches up for all models If noncombustible material is less than 12 you must install the fireplace hood accessory Evenif noncombustible material is more than 12 you may need the hood accessory to deflect heat away from your mantel shelf See Figure 5 and Figures 6 and 7 page 9 for minimum clearances Noncombustible Material Distance A Requirements for Safe Installation 12 or more Between 8 and 12 Less than 8 Noncombustible material OK Install fireplace hood accessory GA6050 GA6052 or GA6053 see Accessories page 24 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 Heat Resistant Material Figure 5 Heat Re
11. 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 f 12 4 10 2 83 4 Example 51 4 id 3 2 S a 7 8 7 16 FIREBOX 5 1 2 4 6 8 10 12 14 16 NCHES Minimum 16 inches from Side Wall Figure 4 Minimum Clearance for Com bustible to Wall Continued 7 For more information visit www desatech com FLAME MAX UNVENTED GAS LOG HEATER INSTALLATION Continued NOTICE Manual control heaters may be used as a vented product If so you must always run heater with chimney flue damper open If running heater with damper open noncombustible material above fireplace opening is not needed Go to Installing Damper Clamp Accessory for Vented Op eration page 10 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 information below You must have noncombustible material s above both fireplace openings Noncom bustible materials such as slate marble tile etc must be at least 1 2 inch thick With sheet metal you must have noncom bustible material behind it Noncombus tible material must extend
12. ignite The heater is in manual mode when ON is lit Inthe AUTO mode the thermostat in the hand held remote unit con trols the room temperature To in crease the room temperature press the top arrow of the TEMP button To lower the room temperature press the bottom arrow of the TEMP button At higher settings the heater will run longer Continued 15 For more information visit www desatech com FLAME MAX UNVENTED GAS LOG HEATER OPERATING HEATER Continued IMPORTANT This remote control has been specially engineered to take an air temperature sample ev ery 5 5 minutes in the AUTO mode It will not respond immediately to the temperature setting being turned up or down Flame Adjustment Knob ON OFF REMOTE e IMPORTANT The hand held re mote control unit must be near the heater Do not keep the hand held remote control unit too close to the heater The thermostat on the hand held remote control unit will heat up too quickly and turn the heater off 3 To turn the burner off press the AUTO ON OFF button until OFF lights The pilot will remain lit IMPORTANT To turn the pilot off manually turn the control knob on the heater to the OFF position Control Knob in On Position Selector Switch in Remote Position Optional Remote Control Figure 25 Setting the Selector Switch Control Knob and Flame Adjustment Knob for Remote Operation WARMER o Increases Room
13. open propane LP supply tank valve 3 Make sure control knob of heater is in the OFF position 4 Check all joints from equipment shutoff valve to control valve see Figure 16 or 17 Apply a noncorrosive leak de tection fluid to gas joints Bubbles forming show a leak 5 Correct all leaks at once 6 Light heater see Operating Heater pages 14 through 16 Check all other internal joints for leaks 7 Turn off heater see To Turn Off Gas to Appliance page 15 Equipment Shutoff Valve ma n FRN Control Valve Location Figure 16 Checking Gas Joints for Natural Gas Equipment Shutoff Valve EES Propane LP Supply Tank Control Valve Location Figure 17 Checking Gas Joints for Propane LP Gas 108382 OWNER S MANUAL Burner INSTALLING LOGS A WARNING Failure to position the parts in accordance with these diagrams or failure to use only parts specifically approved with this heater may result in property damage or personal injury AX CAUTION After installation and periodically thereafter check to ensure that no flame comes in contact with any log With the heater set to High check to see if flames contact any log If so re position logs according to the log installation instructions in this manual Flames contacting logs will create soot Itis very importa
14. 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 POSSIBLE CAUSE OBSERVED PROBLEM REMEDY Heater produces a clicking ticking noise just after burner is lit or shut off 1 Metal expanding while heating or con tracting while cooling 1 This is common with most heaters If noise is excessive contact qualified ser vice person Heater produces unwanted odors Heater burning vapors from paint hair spray glues cleaners chemicals new carpet etc See IMPORTANT state ment above Gas leak See Warning statement at top of page Open window and ventilate room Stop using odor causing products while heater is running Locate and correct all leaks see Check ing Gas Connections page 12 Heater shuts off in use ODS operates Wn Not enough fresh air is available Low line pressure ODS pilot is partially clogged Open window and or door for ventilation Contact local natural or propane LP gas company Clean ODS pilot see Cleaning and Maintenance page 17 Gas odor even when control knob is in OFF position Gas leak See Warning statement at top of page Control valve defecti
15. 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 con nected 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 a noncorrosive leak de tection fluid to gas joints Bubbles forming show a leak 5 Correct all leaks at once 6 Reconnect heater and equipment shutoff valve to gas supply Check re connected fittings for leaks Test Pressures Equal To or Less Than 1 2 PSIG 3 5 kPa 1 Close equipment shutoff valve see Fig ure 15 2 Pressurize supply piping system by either opening propane LP supply tank valve for propane LP gas or opening main gas valve located on or near gas meter for natural gas or using compressed air 3 Check all joints from propane LP sup ply tank to equipment shutoff valve see Figure 15 Apply a noncorrosive leak detection fluid to gas joints Bubbles forming show a leak 4 Correct all leaks at once Equipment Shutoff Valve Open Closed Figure 15 Equipment Shutoff Valve 108382 INSTALLATION Continued Pressure Testing Heater Gas Connections 1 Open equipment shutoff valve see Fig ure 15 page 12 2 Open main gas valve located on or near gas meter for natural gas or
16. 0 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 communicating directly with the space in which the appliances are in stalled through openings not furnished with doors are considered a part of the unconfined space Adjoining rooms are communicating only if there are doorless passageways or ventila tion grills between them 108382 OWNER S MANUAL AIR FOR COMBUSTION AND VENTILATION Continued DETERMINING FRESH AIR FLOW FOR HEATER LOCATION Determining if You Have a Confined or Unconfined Space Use this work sheet to determine if you have a confined or unconfined space Space Includes the room in which you will install heater plus any adjoining rooms with doorless passageways or ventilation grills between the rooms 1 Determine the volume of the space length x width x height Length x Width x Height 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 Multiply the space volume by 20 to determine the maximum Btu Hr the space can support volume of space x 20 maximum Btu Hr the space can support Example 2560 cu ft volume of space x 20 51 200 maximum Btu Hr the space can support 3 Add the Btu
17. 20 000 to 34 999 O 35 000 to 49 999 O 50 000 to 74 999 O 75 000 to 99 999 O 100 000 and Over 15 Store where product was purchased Name City State 16 In choosing this product how important were the following Not Important Somewhat Important Very Important Availability Price Brand Name Overall Quality Heat Output Made in USA Warranty Local Service Value for Price Prior Brand Experience Controls Location Thermostat Remote or Manual Operation Ease of Operation Special Features Salesperson s Recommendation Friend Relative s Recommendation Portability Quiet Operation OOWOOO0000000 000000 OOWOVOO0000000 0000000 oo0oo0oo000000000000 0 Postage Required DESA INTERNATIONAL 2701 Industrial Drive P O Box 90004 Bowling Green KY 42102 9004 OWNER S MANUAL NOTES 108382 27 For more information visit www desatech com 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 International warrants this product to be free from defects in materials and components for four 4 years from the date of first
18. DESA INTERNATIONAL UNVENTED VENT FREE GAS LOG HEATER Also Design Certified As A Vented Decorative Appliance OWNER S OPERATION AND INSTALLATION MANUAL FLAME MAX Multi Sided Log Design VYM27NR PR FVFM27NR PR Remote Control Ready Model WARNING If the information in this manual is not followed exactly a fire or explosion may result causing property damage per sonal 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 per formed by a qualified installer service agency or the gas supplier Patent Pending WARNING Improper installation ad justment alteration service or main tenance can cause injury or property damage Refer to this manual for cor rectinstallation and operational proce dures For assistance or additional in formation consult a qualified installer service agency or the gas supplier WARNING This appliance is for installa tion only ina solid fuel burning masonry or UL127 factory built fireplace or in an approved ventless firebo
19. Decreases Room an Temperature in Shows Temperature Setting HES AUTO Mode The Log Heater will Automatically Cycle between Pilot and the e wo Heat Setting that has been Selected oN OFF e COOLER 0 Temperature in AUTO Mode 4 Turns Burners On or Off and Allows You to Choose the Auto Setting Figure 26 Thermostat Hand Held Remote Control Unit Selections GHRCTA only For more information visit www desatech com 16 INSPECTING BURNERS Check pilot flame pattern and burner flame patterns often PILOT FLAME PATTERN Figure 27 shows acorrect pilot flame pattern Figure 28 shows an incorrect pilot flame pattern The incorrect pilot flame is not touch ing the thermocouple When the thermo couple cools the heater will shut down If pilot flame pattern is incorrect as shown in Figure 28 e turn heater off see To Turn Off Gas to Appliance page 15 e see Troubleshooting pages 18 through 20 Pilot Burner Thermocouple Figure 27 Correct Pilot Flame Pattern Propane LP Pilot Shown Figure 28 Incorrect Pilot Flame Pattern Propane LP Pilot Shown 108382 INSPECTING BURNERS Continued BURNER FLAME PATTERN Figure 29 shows a correct burner flame pat tern Figure 30 shows an incorrect burner flame pattern If burner flame pattern is incorrect e turn heater off see To Turn Off Gas to Appliance page 15 e see Troubleshooting pages 18 through 20 Figure
20. EM AX WARNING Turn off heater and let cool before servicing Only a qualified service person should service and repair heater POSSIBLE CAUSE A CAUTION Never use a wire needle or similar object to clean ODS pilot This can damage ODS pilot unit REMEDY When ignitor button is pressed there is no spark at ODS pilot l 2 YAW Ignitor electrode not connected to igni tor cable Ignitor cable pinched or wet Piezo ignitor nut is loose Broken ignitor cable Bad piezo ignitor Ignitor electrode broken Ignitor electrode positioned wrong 1 Reconnect ignitor cable 2 Free ignitor cable if pinched by any metal or tubing Keep ignitor cable dry 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 NDNAN A When ignitor button is pressed there is spark at ODS pilot but no ignition e W n Gas supply turned off or equipment shutoff valve closed Control knob not in PILOT position Control knob not pressed in while in PILOT position Air in gas lines when installed Depleted gas supply propane LP gas ODS pilot is clogged Gas regulator setting is not correct ee Turn on gas supply or open equipment shutoff valve 2 Turn control knob to PILOT position 3 Press in control knob while in PILOT pos
21. Hr of all fuel burning appliances in the space Vent free heater _ Btu hr Example Gas water heater Btu Hr Gas water heater 40 000 Btu Hr Gas furnace BtwHr Vent free heater 33 000 Btu Hr Vented gas heater s tu Hr Total 73 000 Btu Hr Gas fireplace logs Btu hr Other gas appliances _ sd Btu Hr Total s tu 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 73 000 Btu Hr actual amount of Btu Hr used The space in the above example is a confined space because the actual Btu Hr used is more than the maximum Btu Hr the space can support You 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 adjoin ing room or add ventilation grills between rooms See Ventilation Air From Inside Building page 6 B Vent room directly to the outdoors See Ventilation Air From Outdoors page 6 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 spac
22. S pi lot light safety system The ODS shuts down the heater if not enough fresh air is available See Air for Combustion and Ventilation pages 4 through 6 If heater keeps shutting off see Trouble shooting pages 18 through 20 Do not run heater e where flammable liquids or vapors are used or stored e under dusty conditions 108382 SAFETY INFORMATION Continued 13 Do not use this heater to cook food or burn paper or other objects 14 Do not use heater if any part has been exposed to or under water Immediately call a qualified service technician to in spect the room heater and to replace any part of the control system and any gas control which has been under water 15 Do not operate heater if any log is bro ken Do not operate heater if a log is chipped dime sized or larger OWNER S MANUAL 16 Turn heater off and let cool before ser vicing installing or repairing Make sure the selector switch is in the OFF posi tion Only a qualified service person should install service or repair heater 17 Make sure the selector switch is in the OFF position when you are away from home for long periods of time 18 This heater must not be connected to any external electrical source 19 Operating heater above elevations of 4 500 feet could cause pilot outage 20 Provide adequate clearances around air openings PRODUCT IDENTIFICATION Optional Remote Control i 4 Selector Switch
23. TIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE TO FOUR 4 YEARS ON ALL COMPONENTS 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 INCI DENTAL 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 Cc G A INTERNATIONAL 2701 Industrial Drive P O Box 90004 Bowling Green KY 42102 9004 www desatech com 108382 01 108382 01 Rev B NOT A UPC 02 02
24. ave 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 propane LP gases are fuel gases Fuel gases are odorless An odor making agent are added to fuel gases The odor helps you detect a fuel gas leak However the odor added to fuel gas can fade Fuel gas may be present even though no odor exists Make certain youread and understand all warn ings Keep this manual for reference It is your guide to safe and proper operation of this heater 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 shut down Allow surface to cool be fore touching Carefully supervise young chil dren when they are in the room with heater When using the hand held remote accessory keep se lector switch in the OFF position to prevent children from turning on burners with remote
25. e You will need no additional fresh air ventilation A WARNING If the area in which the heater may be operated is smaller than that defined as an unconfined space or if the building is of unusually tight construction provide adequate combustion and ventilation air by one of the methods described in the National Fuel Gas Code ANSI Z223 1 NFPA 54 Section 5 3 or applicable local codes Continued 108382 5 For more information visit www desatech com FLAME MAX UNVENTED GAS LOG HEATER AIR FOR COMBUSTION AND VENTILATION Continued 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 pro vide 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 op tion 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 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 Follo
26. eavier than air and will settle on the floor WHAT TO DO IF YOU SMELL GAS Do not try to light any appliance Do not touch any electric switch do not use any phone in your building Immediately call your gas supplier from a neighbor s phone Follow the gas supplier s instructions If you cannot reach your gas sup plier call the fire department 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 Do not use this appliance if any part has been under water Immediately call a qualified service technician to inspect the appliance and to replace any part of the control system and any gas control which has been un der water minute when the selector switch A WARNING is in the ON position after the If fireplace has glass doors pilot is lit never operate this heater with glass doors closed If you oper 4 Press in and turn control knob clock ate heater with doors closed wise to the OFF position heat buildup inside fireplace will 5 Wait five 5 minutes to clear out any cause glass to burst Also if gas Then smell for gas including fireplace opening has vents at near the floor If you smell gas the bottom you must open the STOP Follow B in the safety in vents before operating
27. ed 1 8 NPT tap Locate NPT tap within reach for test gauge hook up NPT tap must be upstream from heater see Figure 14 page 12 IMPORTANT Install equipment shutoff valve in an accessible location The equip ment shutoff valve is for turning on or shutting off the gas to the appliance Check your building codes for any special requirements 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 A WARNING Use pipe joint seal ant that is resistant to liquid pe troleum LP gas Propane LP Supply Tank External Regulator Vent TT Pointing o Down a o Terai Figure 13 External Regulator With Vent Pointing Down propane LP gas only Continued 11 For more information visit www desatech com FLAME MAX UNVENTED GAS LOG HEATER INSTALLATION Continued We recommend that you install sediment trap in supply line as shown in Figure 14 Locate sediment trap where it is within reach for cleaning Install in piping system between fuel supply and heater Locate sedi ment trap where trapped matter is not likely to freeze A sediment trap traps moisture and contaminants This keeps them from going into heater controls If sediment trap is not installed or is installed wrong heater may not run properly
28. ented heater appli ance must be installed only in a solid fuel burning fireplace with a working flue and constructed of noncombustible material If your heater is amanually controlled model you may use this heater as a vented product There are three reasons for operating your heater in the vented mode 1 The fireplace does not meet the clear ance to combustibles requirements for vent free operation 2 State or local codes do not permit vent free operation 3 You prefer vented operation Ifreasons number 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 24 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 Chimney Minimum Permanent Height ft Flue Opening sq ins 6 to 15 15 to 30 39 sq inches 29 sq inches Area of Various Standard Round Flues Diameter ins Area sq ins als 20 sq inches 6 29 sq inches 7 39 sq inches 8 51 sq inches Masonry Fireplace Figure 10 Attaching Damper Clamp INSTALLING HEATER BASE ASSEMBLY A CAUTION Do not remove the metal data plates attached to the hea
29. epartment This heater shall not be installed in a bedroom or bathroom unless installed as a vented appliance see Installing Damper Clamp Accessory for Vented Operation page 10 Before installing in a solid fuel burn ing fireplace the chimney flue and fire box must be cleaned of soot creosote ashes and loose paint by a qualified chimney cleaner Creosote will ignite if highly heated Inspect chimney flue for damage If damaged operate heater with flue damper closed If fireplace has glass doors never op erate this heater with glass doors closed If you operate heater with doors closed heat buildup inside fireplace will cause glass to burst Also if fireplace open ing has vents at the bottom you must open the vents before operating heater This log heater is designed to be smoke less If logs ever appear to smoke turn off heater and call a qualified service person Note During initial operation slight smoking could occur due to log curing and heater burning manufacturing residues To prevent the creation of soot follow the instructions in Cleaning and Main tenance page 17 Before using furniture polish wax car pet cleaner or similar products turn heater off If heated the vapors from these products may create a white pow der residue within burner box or on adjacent walls or furniture This heater needs fresh outside air ven tilation to run properly This heater has an oxygen depletion sensing OD
30. evel 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 combus tible flooring see Figure 9 108382 OWNER S MANUAL Minimum Non gt Combustible Material Material Height Mantel Shelf Underside of Mantel Shelf All minimum distances are in inches 12 18 20 22 24 Top of Fireplace LH l Opening Minimum Non Distances to Combustible Underside of Mantel Figure 6 Minimum Mantel Clearances Without Using Hood Mantel Shelf Minimum Non Combustible Material Hood GA6050 GA6052 or GA6053 Underside of Mantel Shelf All minimum distances are in inches 12 15 18 20 leis fe ae Top of Fireplace QW Opening Distances to Underside of Mantel Figure 7 Minimum Mantel Clearances When Using Hood O Combustible A o 14 Material E Min KAX NAANAANA Non Combustible Material Figure 8 Minimum Fireplace Clearances If Installed at Floor Level Hearth Combustible 5 Material E Figure 9 Minimum Fireplace Clearances Above Combustible Flooring Continued 9 For more information visit www desatech com FLAME MAX UNVENTED GAS LOG HEATER INSTALLATION Continued INSTALLING DAMPER CLAMP ACCESSORY FOR VENTED OPERATION Note When used as a v
31. forunvented heaters State and local codes in some areas prohibit the use of vent free heaters This heater may also be operated as a vented decorative prod uct ANSI Z21 60 by opening flue damper non thermostat operation only APPLICATION These multisided logs are designed to be equally beautiful when viewed from any angle They are designed specifically for use in see through peninsula and island fireboxes with multiple openings You may also in stall this log heater in a standard firebox 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 PIEZO IGNITION SYSTEM This heater has a piezo ignitor This system requires no matches batteries or other sources to light heater REMOTE CONTROL ACCESSORIES There are four optional remote controls that canbe purchased separately for this log heater e wall switch e wall thermostat e hand held ON OFF remote e hand held thermostat remote See Accessories page 24 NOTE The wall thermostat or hand held thermostat may not be used where vented decorative listing is required 3 For more information visit www desatech com FLAME MAX UNVENTED GAS LOG HEATER AIR FOR COMBUSTION AND VENTILATION AX WARNING This heater shall not be installed inaconfined space or unusually tight c
32. gas pressure is too low W Burner orifice diameter is too small 4 Thermopile leads disconnected or im properly connected 5 Burners will not come on in remote position 1 Clean burner see Cleaning and Mainte nance page 17 or replace burner orifice 2 Contact local natural or propane LP gas company 3 Replace burner orifice 4 Reconnect leads see Wiring Diagram page 21 5 Replace battery in transmitter and re ceiver Delayed ignition burner 1 Manifold pressure is too low 2 Burner orifice clogged 1 Contact local natural or propane LP gas company 2 Clean burner see Cleaning and Mainte nance page 17 or replace burner orifice Burner backfiring during combustion 1 Burner orifice is clogged or damaged 2 Damaged burner 3 Gas regulator defective 1 Clean burner see Cleaning and Mainte nance page 17 or replace burner orifice 2 Replace damaged burner 3 Replace gas control Slight smoke or odor during initial operation 1 Not enough air 2 Gas regulator defective Residues from manufacturing processes and logs curing W 1 Check burner for dirt and debris If found clean burner see Cleaning and Maintenance page 17 2 Replace gas control 3 Problem will stop after a few hours of operation Moisture condensation noticed on windows 1 Not enough combustion Vventilation air 1 Refer to Air for Combustion and Venti lation requirements page 4 Heater pr
33. heater formation column 1 If you don t You must operate this heater smell gas go to the next step with a fireplace screenin place Make sure fireplace screen is 6 Pressin and turn control knob coun closed before running heater terclockwise y to the PILOT position Press in control knob for five 5 seconds see Figure 22 NOTICE During initial operation Note You may be running this of new heater burning logs will heater for the first time after hook give off a paper burning smell ing up to gas supply If so the con Open damper or window to vent trol knob may need to be pressed in smell Thiswillonly lasta few hours for 30 seconds or more This will al Note Homeowners generally prefer to ow anto bleed fromtite ses system operate their heater with the chimney 7 With control knob pressed in press damper closed This will put all the heat into the room However there may be times you will desire the full flames of the High heat setting but will find the heat output excessive You can open the chim ney damper if you have one fully or partially to release some of the heat AX WARNING Damper handle will be hot if heater has been running 1 STOP Read the safety information column 1 2 Make sure equipment shutoff valve is fully open 3 Set switch in OFF position and release ignitor button This will light pilot The pilot is attached to the front burner If needed keep press ing ignitor bu
34. heating season Blocked air holes will create soot We recom mend that you clean the unit every three months during operation and have heater in spected yearly by a qualified service person We also recommend that you keep the burner tube and pilot assembly clean and free of dust and dirt To clean these parts 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 directions on the can If you don t follow directions on the can you could damage the pilot assembly 1 Shutoff the unit including the pilot Allow the unit to cool for at least thirty minutes 2 Inspect burner pilot and primary air inlet holes on injector holder for dust and dirt see Figure 31 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 Clean the pilot assembly also A yellow tip on the pilot flame indicates dust and dirt in the pilot assembly There is a small pilot air inlet hole about two inches from where
35. his appli ance in a vented configuration Check your state or local codes A WARNING Before installing in a solid fuel burning fireplace the chimney flue and firebox must be cleaned of soot creosote ashes and loose paint by a quali fied chimney cleaner Creosote will ignite if highly heated A dirty chimney flue may create and dis tribute soot within the house In spect chimney flue for damage If damaged operate heater with flue damper closed A WARNING Seal any fresh air vents or ash clean out doors lo cated on floor or wall of fireplace If not drafting may cause pilot outage or sooting Use a heat resistant sealant Do not seal chimney flue damper 108382 OWNER S MANUAL Ay WARNING Never install the heater inabedroom or bathroom un less installed as a vented ap pliance see page 10 in a recreational vehicle where curtains furniture clothing or other flammable objects are less than 42 inches from the front top or sides of the heater e in high traffic areas in windy or drafty areas A CAUTION This heater cre ates warm air currents These currents move heat to wall sur faces next to heater Installing heater next to vinyl or cloth wall coverings or operating heater where impurities such as but not limited to tobacco smoke aromatic candles cleaning flu ids oilor kerosene lamps etc in the air exist may discolor walls or cause odors
36. ition 4 Continue holding down control knob Repeat igniting operation until air is re moved 5 Contact local propane LP gas company 6 Clean ODS pilot see Cleaning and Maintenance page 17 or replace ODS pilot assembly 7 Replace gas control ODS pilot lights but flame goes out when control knob is released W aD Control knob not fully pressed in Control knob not pressed in long enough Equipment shutoff valve not fully open Pilot flame not touching thermocouple which allows thermocouple to cool causing pilot flame to go out This prob lem could be caused by one or both of the following A Low gas pressure B Dirty or partially clogged ODS pilot Thermocouple connection loose at con trol valve Thermocouple damaged Control valve damaged www desatech com For more information visit www desatech com 18 1 Press in control knob fully 2 After ODS pilot lights keep control knob pressed in 30 seconds 3 Fully open equipment shutoff valve 4 A Contact local natural or propane LP gas company B Clean ODS pilot see Cleaning and Maintenance page 17 or replace ODS pilot assembly 5 Hand tighten until snug then tighten 1 4 turn more 6 Replace thermocouple 7 Replace control valve 108382 TROUBLESHOOTING Continued OBSERVED PROBLEM OWNER S MANUAL POSSIBLE CAUSE REMEDY Burner does not light after ODS pilot is lit 1 Burner orifice clogged 2 Inlet
37. l comfort setting will vary by household depending upon the amount of space to be heated the output of the central heating system etc For wall thermostat operation follow in structions supplied with thermostat ac cessory GWMT1 For wall switch opera tion follow instructions supplied with GWMS2 NOTICE You must light the pilot before using the hand held re mote control unit See Lighting Instructions on page 14 1 After lighting let pilot flame burn for about one minute Turn control knob to ON position Adjust flame adjust ment knob anywhere between HI and LO Slide the selector switch to the REMOTE position NOTE The burner may light if hand held remote ON button was on when selector switch was last turned off You can now turn the burner on and off with the hand held remote control unit IMPORTANT Do not leave the se lector switch in the REMOTE posi tion when the pilot is not lit This will drain the battery IMPORTANT Be sure to press the ON OFF buttons on the hand held remote control unit for up to 3 sec onds to assure proper operation GHRC Series Operation 2a Press the ON OFF button to turn the burner on and off When turning burner off the pilot will remain lit GHRCTA Series Operation 2b Press the AUTO ON OFF button on the hand held remote control see Figure 26 page 16 The lights to the left of the button will show AUTO ON or OFF e In the ON mode the burners will
38. listed under Replacement Parts on page 21 of this manual VYM27NR FVFM27NR VYM27PR FVFM27PR PART NUMBER KEY VYM27NR VYM27PR FVFM27NR FVFM27PR DESCRIPTION 104676 01 104676 01 Log Multi Sided 103779 01 103778 01 ODS Pilot 098249 01 098249 01 ODS Nut 104592 01 104592 02 Burner Outlet Tube 098264 02 098264 02 Male Connector 102843 01 102843 01 Burner Clip 099056 16 099056 17 Burner Orifice Injector 104591 01 104591 01 Burner 100609 01 099387 13 Pilot Tube Regulator to Pilot 103781 01 103781 02 Gas Control Valve 104611 01 104611 01 Lower Bracket 098304 01 098304 01 Screw 8 x 38 104590 01CK 104590 01CK Painted Base Assy 09827 1 06 098271 06 Ignitor Cable 102445 01 102445 01 Piezo Ignitor 103587 02CK 103587 02CK Plate Switch 103784 02 103784 02 Flame Adjustment Knob 103784 01 103784 01 Off Pilot On Knob M12461 26 M12461 26 Screw Hex Slit Wsr 10 32 x 38 103284 02 103284 02 Wiring Harness 099998 01 099998 01 Switch 099918 02 Pilot Regulator 099387 15 Pilot Tube Valve to Regulator PARTS AVAILABLE NOT SHOWN 100563 01 100563 01 Warning Plate 103877 01 103877 01 Lighting Instructions Plate 100565 01 100565 01 Warning Plate Fastener 100639 01 100693 01 Caution Decal 101137 02 101137 02 Hardware Kit GA6060 GA6060 Lava Rock ONoOaARKRWDND aaron Roo on on nny oe on on on on in in 4 pp on i 108382 23 For more information visit www desatech com FLAME MAX UNVENTED
39. models Allows the gas log heater to be turned on and off with a wall switch DAMPER CLAMP GA6080 Not Shown Permanently opens chimney flue damper for vented operation Can be used only with non thermostat accessories CLEANING KIT GCK Not Shown Your vent free gas appliance requires regu lar cleaning and maintenance to prevent performance problems This kit gives you the tools and instructions to make it easy to clean all critical areas of your appliance INFORMATION VIDEO 108917 01 For all models A care and maintenance video is available by calling 1 866 672 6040 108382 OWNER S REGISTRATION FORM In order to provide better customer service for this and future purchases we recommend that you register your product with us You can register online at www desatech com If access to our website is not available to you please complete this Owner s Registration Form and mail to the address on the back of this owner s manual Please provide the following product information Brand Comfort Glow Vanguard etc Model EFP33PR VTGH33NR etc Date Purchased Note Keep receipt for warranty verification Serial Number 17 0 9 digit number located on product or identification tag First Name Last Name Address City State Zip Country Home Phone __ E Mail Please answer the following questions to register your product with DESA International 1 Where will the product be used O Living Family
40. nt to install the logs exactly as instructed Do not modify logs Only use logs supplied with heater 1 Place bottom log 1 on grate to fit as illustrated in Figure 18 Make sure open areas of log set line up with burner ports see Figure 19 Log will fit securely on chassis IMPORTANT Make sure log does not cover any burner ports 2 Facing front of unit place top log 2 onto the pegs in the center of the bot tom log see Figure 20 3 Position log piece 3 by aligning holes on underside with remaining pegs on bottom log see Figure 21 4 Place lava rock around base of heater Bottom Log 1 oR Burner Figure 18 Installing Bottom Log 1 Logs Ports Figure 20 Installing Top Log 2 Ke Log Piece 3 Peg Figure 21 Installing Log Piece 3 13 For more information visit www desatech com FLAME MAX UNVENTED GAS LOG HEATER OPERATING HEATER FOR YOUR SAFETY READ BEFORE LIGHTING INSTRUCTIONS A WARNING Burner will come on automatically within one LIGHTING A WARNING If you do not fol low these instructions exactly a fire or explosion may result caus ing property damage personal injury or loss of life This appliance has a pilot which must be lighted by hand When lighting the pilot follow these instructions exactly BEFORE LIGHTING smell all around the appliance area for gas Be sure to smell next to the floor because some gas is h
41. ode Figure 23 Natural Gas Pilot Pilot Burner Ignitor Electrode Figure 24 Propane LP Gas Pilot 108382 OWNER S MANUAL i TO TURN OFF GAS TO APPLIANCE Shutting Off Heater 1 Turn control knob clockwise to the OFF position 2a Set selector switch in the OFF position 2b If Using Optional Hand Held Re mote Set selector switch in the OFF position to prevent draining battery Shutting Off Burner Only pilot stays lit You may shut off the burner and keep the pilot lit by doing one of the following 1 Turn control knob clockwise to the PILOT position ae 2 Use remote control manual OFF button 3 Set selector switch in the OFF position ae MANUAL LIGHTING PROCEDURE 1 Follow steps 1 through 6 under Light ing Instructions page 14 2 Depress control knob and light pilot with match 3 Keep control knob pressed in for 30 seconds after lighting pilot After 30 seconds release control knob Now follow steps 9 through 11 column 1 i OPTIONAL REMOTE OPERATION Note Allremote control accessories must be purchased separately see Accessories page 24 Follow instructions included with the remote control Thermostat Control Operation Optional GHRCTA Series Only The thermostat control setting on the remote control unit can be set to any comfort level between WARMER and COOLER The burner will turn on and off automati cally to maintain the comfort level you select The idea
42. oduces 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 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 clear ances see pages 7 through 9 4 Clean burner see Cleaning and Mainte nance page 17 or replace burner orifice White powderresidue forming within burner box or on adjacent walls or furniture 1 When heated vapors from furniture pol ish wax carpet cleaners etc may turn into white powder residue 1 Turn heater off when using furniture polish wax carpet cleaners or similar products Remote does not function 108382 1 Battery is not installed Battery power is low www desatech com 1 Replace 9 volt batteries in receiver and remote control Continued 19 For more information visit www desatech com FLAME MAX UNVENTED GAS LOG HEATER TROUBLESHOOTING Continued Ad WARNING If you smell gas e Shut off gas supply 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 aneighbor s phone Follow the gas supplier s instructions If you cannot reach your gas
43. onstruction unless provisions are provided foradequate combustion and ven tilation air Read the following in structions to insure proper fresh air for this and other fuel burning appliances in your home Today s homes are built more energy effi cient than ever New materials increased insulation and new construction methods helpreduce 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 com bustion and ventilation Exhaust fans fireplaces clothes dryers and fuel burning appliances draw air from the house to operate You must provide ad equate fresh air for these appliances This will insure proper venting of vented fuel burning appliances PROVIDING ADEQUATE VENTILATION The following are excerpts from National Fuel Gas Code ANSI Z223 1 NFPA 54 Sec tion 5 3 Air for Combustion and Ventilation All spaces in homes fall into one of the three following ventilation classifications 1 Unusually Tight Construction 2 Unconfined Space 3 Confined Space The information on pages 4 through 6 will help you classify your space and provide adequate ventilation Unusually Tight Construction
44. 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 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 DURA TION OFANY AND ALLIMPLIED WARRANTIES INCLUDING WARRAN
45. s in hard ware package 3 Place heater base in fireplace Place logs in their proper position on heater base See Installing Logs page 13 5 Center heater base and logs front to back and side to side in fireplace 6 Carefully remove logs without moving heater base 108382 INSTALLATION Continued 7 Mark screw locations through one hole on each side of the mounting bracket see Figure 12 If installing in a brick bottom fireplace mark screw locations in mortar joint of bricks 8 Remove heater base from fireplace If installing optional control accessories do so at this time Follow all directions provided with accessory 9 Drill holes at marked locations using 3 16 drill bit 10 Attach base assembly to fireplace floor using two masonry screws in hardware package Flexible Gas Fitti Hose if allowed iting by local codes Figure 11 Attaching Flexible Gas Hose to Heater Masonry Screw Mounting Flanges Figure 12 Attaching Base Assembly to Fireplace Floor 108382 OWNER S MANUAL CONNECTING TO GAS SUPPLY AXWARNING A qualified service person must connect heater to gas supply Follow all local codes A WARNING Never connect propane LP heater directly to the propane LP supply This heater requires an external regulator not supplied Install the external regulator between the heater and propane LP supply A WARNING Never connect natural gas heater
46. sistant Material Slate Marble Tile etc Above Fireplace For more information visit www desatech com 8 108382 INSTALLATION Continued MANTEL CLEARANCES In addition to meeting noncombustible ma terial clearances you must also meet re quired clearances between fireplace open ings 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 Determining Minimum Mantel Clearance When using a Hood If minimum clearances in Figure 6 are not met you must have a hood When using a hood there are still certain minimum mantel clearances required Follow minimum clear ances shown in Figure 7 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 tempera tures meet the requirement of the national product standard Fol low all minimum clearances shown in this manual NOTICE If your installation does not meet the minimum clearances shown you must do one of the following operate the logs only with the flue damper open e raise the mantel to an accept able height remove the mantel FLOOR CLEARANCES A If installing appliance on the floor l
47. ter base assembly The data plates contain important warranty and safety information A WARNING You must secure this heater to fireplace floor If not heater will move when you adjust controls Moving heater may cause a gas leak A WARNING If installing in a sunken fireplace special care is needed You must raise the fire place floor to allow access to heater control panel This will in sure adequate air flow and guard against sooting Raise fireplace floor with noncombustible mate rial Make sure material is secure Accaution Do not pickup heater base assembly by the burner This could damage heater Only handle base assembly by grates For more information visit www desatech com 10 Manufactured Fireplace IMPORTANT Make sure the heater burner is level If heater is not level heater will not work properly Installation Items Needed e hardware package provided with heater e approved flexible gas hose not provided if allowed by local codes e sealant resistant to propane LP gas not provided e electric drill with 3 16 drill bit metal or masonry as applicable e flathead screwdriver 1 Apply pipe joint sealant lightly to male threads of the fitting to be threaded into gas control Connect approved flexible gas hose to gas control fitting in heater see Figure 11 page 11 IMPORTANT Hold gas fitting with wrench when con necting flexible gas hose 2 Locate two masonry screw
48. the pilot flame comes out of the pilot assembly see Figure 32 With the unit off lightly blow air through the air inlet hole You may blow through a drinking straw if compressed air is not available Injector Holder May Be Brass or Aluminum Depending on Model Burner Tube i e Ce Primary Air Inlet ps Holes Shape of Holes May Vary by Model Figure 31 Injector Holder On Outlet Burner Tube Ports Slots Burner gt lt ee Pa Tube gt S z SS Pilot Ane Assembly Pilot Air Inlet Hole Figure 32 Pilot Inlet Air Hole LOGS e If you remove logs for cleaning refer to Installing Logs page 13 to properly re place logs e Replace log s if broken or chipped dime sized or larger MAIN BURNER Periodically inspect all burner flame holes with the heater running All slotted burner flame holes should be open with yellow flame present All round burner flame holes should be open with a small blue flame present Some burner flame holes may be come blocked by debris or rust with no flame present If so turn off heater and let cool Remove blockage Blocked burner flame holes will create soot 17 For more information visit www desatech com FLAME MAX UNVENTED GAS LOG HEATER TROUBLESHOOTING Note For additional help visit DESA International s technical service web site at www desatech com Note All troubleshooting items are listed in order of operation OBSERVED PROBL
49. to private non utility gas wells This gas is com monly 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 A CSA design certified equipment shutoff valve with 1 8 NPT tap is an acceptable alternative to test gauge connection Pur chase the optional CSA design certified equipment shutoff valve from your dealer See Accessories page 24 For Propane LP Gas 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 pressure heater regulator damage could occur Install exter nal regulator with the vent pointing down as shown in Figure 13 Pointing the vent down protects it from freezing rain or sleet A CAUTION Use only new black iron or steel pipe Inter nally 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 Installation must include an equipment shutoff valve union and plugg
50. tton until pilot lights Note If pilot does not stay lit con tact a qualified service person or gas supplier for repairs Until repairs are made light pilot with match To light pilot with match see Manual Light ing Procedure on page 15 Flame Adjustment Knob AUTO OFF ON Control Knob Ignitor Button Selector Switch Figure 22 Control Knob and Ignitor Button Location Shown as Supplied No Control Options For more information visit www desatech com 14 108382 OPERATING HEATER Continued 8 Keep control knob pressed in for 30 seconds after lighting pilot After 30 seconds release control knob Ifcontrol knob does not pop out when released contact a qualified service person or gas supplier for repairs Note If pilot goes out repeat steps 4 through 8 9 Slightly push in and turn control knob counterclockwise y to the ON position 10 Wait one minute and switch selector switch to the ON position to light burner Note AUTO is only func tional when using GWMTI1 or GWMS2 optional accessories 11 Set flame adjustment knob to any level between HI and LO A CAUTION Do nottry to adjust heating levels by using the equip ment shutoff valve A WARNING Make sure the se lector switch is in the OFF position when you are away from home for long periods of time Heater will come on automatically with selec tor switch in the ON position Pilot Burner Ignitor Electr
51. ve Locate and correct all leaks see Check ing Gas Connections page 12 Replace control valve Gas odor during combustion Foreign matter between control valve and burner Gas leak See Warning statement at top of page www desatech com For more information visit www desatech com 20 Take apart gas tubing and remove for eign matter Locate and correct all leaks see Check ing Gas Connections page 12 108382 WIRING DIAGRAM Note For proper operation of optional ac cessories the wires from the switch to the control must be connected exactly as shown SPECIFICATIONS OWNER S MANUAL Thermopile Natural Gas Propane LP Btu Variable 20 000 39 000 20 000 39 000 Type Gas Natural Gas Only Propane LP Only Ignition Piezo Piezo Pressure Manifold 3 5 W C 8 0 W C Inlet Gas Pressure in of water Maximum 10 5 14 Minimum 5 11 Shipping Weight 32 lbs 32 Ibs For input adjustment SERVICE HINTS 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 e propane LP gas supply may be low You may feel your gas pressure is too low If so contact your local natural or propane LP gas supplier 108382 TECHNICAL SERVICE You may have further questions about in stallation operation or troubleshooting If so contact DESA International s Technical Service Department at 1 866 672
52. w the National Fuel Gas Code ANSI Z223 1 NFPA 54 Section 5 3 Air for Combustion and Ventilation for required size of ventilation grills or ducts IMPORTANT Do not provide openings for inlet or outlet air into attic if attic has a thermostat controlled power vent Heated air entering the attic will activate the power vent Ventilation Grills Into Adjoining Room Option 1 Or Remove Door into Adjoining Room Option 3 1 Ventilation Grills Into Adjoining Room Option 2 ee aS Figure 2 Ventilation Air from Inside Building Ventilated Outlet Air Inlet Air Inlet Air To Attic E To Crawl E Ventilated Crawl Space Figure 3 Ventilation Air from Outdoors For more information visit www desatech com 108382 INSTALLATION NOTICE This heater is intended for use as supplemental heat Use this heater along with your pri mary heating system Do not in stall this heater as your primary heat source If you have a central heating system you may run system s circulating blower while using heater This will help circu late 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 NOTICE State or local codes may only allow operation of t
53. x It is design certified for these installations in accor dance 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 Provisions for adequate combustion and ventilation air must be provided Refer to Air for Combustion and Ventilation section on page 4 of this manual This appliance may be installed in an aftermarket manufactured mobile home where not prohibited by 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 Save this manual for future reference FLAME MAX UNVENTED GAS LOG HEATER SAFETY INFORMATION A WARNINGS IMPORTANT Read this owner s manual carefully and completely before trying to assemble oper ate or service this heater Im proper use ofthis 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 headaches dizziness or nausea If you h
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