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Desa L32 User's Manual

1. To Lock press both buttons on hand held remote control until light stops flashing Hand held remote control is now locked If the fire is on it will be turned off automatically In the locked state the light will not light up when any button is pressed To Unlock press both buttons together on hand held remote control until the light stops flashing The hand held remote is now unlocked Control Button Turns Burners On and Off Figure 41 On Off Hand Held Remote Control Unit GHRCB THERMOSTAT SERIES MODEL GHRCTB The hand held remote can be operated using either the manual mode MANU or thermo static mode AUTO see Figure 42 To select Fahrenheit Centigrade mode display carefully press the C F mode button with the end of a paper clip or similar blunt object Turns Hand Held igita Remote On Display or Off and Shows 2565 Allows You Temperature TUB to Choose and Settings E JE the Manual REN Setting Burners On co MANU AUTO Selects or Off dre CT Auto Setting Decreases Increases Room Room Temperature in AUTO ela Mode Locks System to Mode Prevent Accidental Ignition Figure 42 Thermostat Hand Held Remote Control Unit GHRCTB Manual Mode Press the POWER and LOCK buttons togeth er to turn on the hand held remote control 2 Press the MANU button to turn on the fireplace 3 Press the POWER and LOCK buttons together to turn off the fireplace Auto Thermostatic Mode 1
2. Painted White GMC8CU 32 Cabinet Mantel amp Base Unfin ished Exclusive GMC10CF 32 Cabinet Mantel amp Base Oak Finish Exclusive GMC90F 32 Columned Cabinet Mantel amp Base Stained Oak GMC91U 32 Columned Cabinet amp Base Unfinished Birch GMC92F 32 Columned Cabinet amp Base Cherry Finished Birch GMC14U 36 Cabinet Mantel amp Base Unfinished GMC50W 36 Cabinet Mantel amp Base Painted White GMC55F 36 Cabinet Mantel amp Base Oak Stained Finish GMC56F 36 Corner Mantel amp Base Oak Stained Finish Note No 42 mantels offered at this time BASES GC3333FC 32 Cabinet Base Walnut Stained GC3334UC 32 Cabinet Base Unfinished GC3335FC 32 Cabinet Base Oak Finish G3010FC 32 Corner Base Unfinished G3008FB 32 Corner Base Walnut Stained G3009UB 32 Corner Base Unfinished G3004WB 32 Cabinet Base Painted White HOODS H36B 36 Hood Brushed Brass H36P 36 Hood Platinum H36PB 36 Hood Polished Brass H42B 42 Hood Brushed Brass H42P 42 Hood Platinum H42PB 42 Hood Polished Brass LOUVER TRIM LT32B 32 Louver Trim Kit Brushed Brass LT32P 32 Louver Trim Kit Platinum LT36B 36 Louver Trim Kit Brushed Brass LT36P 36 Louver Trim Kit Platinum LT42B 42 Louver Trim Kit Brushed Brass LT42P 42 Louver Trim Kit Platinum PERIMETER TRIM PT32 32 Perimeter Trim Black PT32B 32 Perimeter Trim Brushe
3. Valve Bracket 14261 14261 14261 14261 Piezo Ignitor 14253 14253 14253 14253 Gas Line Flex w Shut Off 102568 05 102568 05 102568 06 102568 06 Gas Control Valve 101330 05 101330 05 101330 05 101330 05 Front Burner Assembly 101008 01 101008 01 101008 01 101008 01 Crossover Burner Bracket 101007 01 101007 01 101007 01 101007 01 Crossover Burner 109824 02 109824 02 109824 02 109824 02 Rear Burner Assembly bid I bj bi Grate Assembly 115401 01 115401 01 115401 01 115401 01 Base Pan 108138 01 108138 01 108138 01 108138 01 Saddle Bracket M11084 38 M11084 38 M11084 38 M11084 38 Screw 101004 11 101004 11 101004 01 101004 01 Rear Burner Injector 101004 08 101004 08 101004 02 101004 02 Front Burner Injector 116009 01 116009 01 116009 01 116004 01 Outlet Burner Tube M11084 26 M11084 26 M11084 26 M11084 26 Screw 103042 01 103042 01 099059 02 099059 02 ODS Pilot 098271 01 098271 01 098271 01 098271 01 Ignitor Cable 098249 01 098249 01 098249 01 098249 01 Nut 098276 01 098276 01 098276 01 098276 01 1 8 NPT Hex Head Plug 098508 01 098508 01 098508 01 098508 01 Valve Retainer Nut 098534 01 098534 01 098534 01 098534 01 Control Knob 098867 09 098867 09 098867 10 098867 10 Regulator 099387 05 099387 05 099387 05 099387 05 Pilot Tube 116059 01 116059 01 116059 01 116059 01 Inlet Tube See page 42 See page 42 See page 42 See page 42 Left Refractory See page
4. able panels AX WARNING Ifthere is a duplex electrical outlet installed in the right side of the bottom of the fireplace base area see Figure 13 be sure that the electrical power to the outlet is turned off before proceeding with blower installation Failure to do this may result in serious injury 1 Attach the power cord to the blower motor by firmly pushing the two female terminals at the end of the power cord onto the two spade ter minals on the blower motor see Figure 14 Lower Louver Panel Figure 12 Accessing Blower Compartment Controls Not Shown for Clarity Duplex Electrical Outlet Figure 13 Accessing Duplex Electrical Outlet Installed in Bottom Right Side of Firebox Air Flow Direction Blower Side View Installed Firebox Bottom After i Lower L Panel Blower Removed Location Magnets Figure 14 Blower Model BK 115254 01A www desatech com 13 INSTALLATION Continued 2 Attach green ground wire from power cord to blower housing using screw provided see Figure 14 page 13 Tighten screws securely with a phillips screwdriver 3 Place the blower against the lower rear wall of the firebox outer wrapper with the exhaust port directed upward Depending on your model you may have to carefully route the blower assembly past the controls and brackets and position the blower inside the back opening The blower will be held in position against the
5. 6 Light heater see Operating Fireplace page 21 Check all other internal joints for leaks 7 Turn off heater see To Turn Off Gas to Appli ance page 23 for Manually Controlled Mod els or page 25 for Remote Ready Models 18 www desatech com 115254 01A INSTALLATION Continued INSTALLING LOGS Models V L32HN V L32LHN V L32HP and V L32LHP Ay WARNING Failure to posi tion the parts in accordance with these diagrams or failure to use only parts specifically approved with this heater may result in property damage or personal injury A CAUTION After installa tion and periodically thereafter check to ensure that no flame comes in contact with any log With the heater set to HI check to see if flames contact any log If so reposition logs according to the log installation instructions in this manual Flames contact ing logs will create soot Vintage Oak Two Piece Log Set It is very important to install these logs exactly as instructed Do not modify logs Only use logs supplied with heater 1 Place front log on top of the grate and over front posts on chassis see Figure 26 Log 2 Log 1 Figure 26 Installing Vintage Oak Two Piece Log Set 2 Place rear log on rear of chassis see Figure 26 Slide log forward so that it sits against rear posts on chassis IMPORTANT Make sure logs do not cover any burner ports see Figure 27 3 Place lava rock around base of heate
6. B C adjoining room If the extra space provides an unconfined space remove door to adjoining room or add ventilation grills between rooms See Ventilation Air From Inside Building Vent room directly to the outdoors See Ven tilation Air From Outdoors page 9 Install a lower Btu Hr heater if lower Btu Hr size makes room unconfined Ifthe actual Btu Hr used is less than the maximum Btu Hr the space can support the space is an un confined space You will need no additional fresh air ventilation 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 3168 cu ft volume of space x 20 63 360 maximum Btu Hr the space can support 3 Add the Btu Hr of all fuel burning appliances in the space 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 airby one ofthe methods described in the National Fuel Gas Code ANSIZ223 1 NFPA 54 Section 5 3 or applicable local codes Vent free heater Btu Hr Gas water heater Btu Hr Gas furnace Btu Hr Vented gas heater Btu Hr Gas fireplace logs Btu Hr Other gas appliances Btu Hr Total Btu Hr Do not include direct vent gas appliances Direct vent draws combustion air from the outdoors and vents to the outdo
7. LZPR 25 000 36 000 Propane LP Natural Piezo 7 9 W C 3 4 W C 14 10 5 11 5 224 lbs 115254 01A www desatech com 33 SERVICE HINTS When Gas Pressure Is Too Low pilot will not stay lit burners will have delayed ignition heater will not produce specified heat 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 heater ready You can also visit DESA s technical services web site at www desatech com REPLACEMENT PARTS Note Use only original replacement parts This will protect your warranty coverage for parts replaced under warranty PARTS UNDER WARRANTY Contact authorized dealers of this product If they can t supply original replacement part s call DESA s Technical Service Department at 1 866 672 6040 When calling DESA have ready your name your address model and serial numbers of your firebox how firebox was malfunctioning e type of gas used propane LP or natural gas 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 origi
8. Pressthe POWER and LOCK buttons togeth er to turn on the hand held remote control 2 Press AUTO button to select this mode 3 Set the desired room temperature by press ing the TEMP or buttons 4 Press the POWER and LOCK buttons together to turn off the fireplace Note Do not leave the hand held remote in the AUTO mode close to the fireplace The radiant heat from the fireplace will turn off the fireplace Ideally place the hand held remote in the center of the room facing towards the fireplace Note Do not hold the hand held remote for a long time Body temperature will affect its operation in the AUTO mode Safety Features When away from home for an extended period of time or as a child safety feature to prevent accidental ignition of the fireplace the receiver ON OFF REMOTE switch should be in the OFF position Auto Shutoff Feature 1 If the average room temperature exceeds 82 degrees Fahrenheit 28 degrees Centi grade the hand held remote control will perform a safety override and shut the fireplace off This feature is not available in the MANU mode 2 The receiver continuously receives signals from the hand held remote to control the room temperature If the hand held remote is misplaced obstructed or for any reason cannot transmit to the receiver the receiver will shut off the fireplace after 8 minutes Key Pad Lock Feature This feature allows the user to lock unlock the keypad on the hand held
9. line checked by local natural or propane LP gas company 3 Observe minimum installa tion clearances see pages 9 through 11 4 Clean burners see Cleaning and Maintenance page 28 or replace burner orifice s White powder residue forming within burner box or on adjacent walls or furniture 1 When heated vapors from furniture polish wax carpet cleaners etc 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 Combustion and Ventilation requirements page 7 115254 01A www desatech com 31 TROUBLESHOOTING Continued building A WARNING If you smell gas Shut off gas supply Do not try to light any appliance Do not touch any electrical switch do not use any phone in your Immediately call your gas supplier from a neighbor s phone Fol low the gas supplier s instructions If you cannot reach your gas supplier call the fire department IMPORTANT Operating heater where impurities in air exist may create odors Cleaning supplies paint paint remover cigarette smoke cements and glues new carpet or textiles etc create fumes These fumes may mix with combustion air and create odors These odors will disappear over time OBSERVED PROBLEM POSSIBLE CAUSE REMEDY Remote does not func
10. the odor added to the gas can fade Gas may be present even though no odor exists Make certain you read and understand all warnings Keep this manual for reference It is your guide to safe and proper operation of this heater A WARNING Any change to this heater or its controls can be dangerous WARNING Do not use a blower insert heat exchanger insert or other accessory notap proved for use with this heater WARNING Do not allow fans to blow directly into the fireplace Avoidany drafts thatalter burner flame patterns Ceiling fans can create drafts that alter burner flame patterns Altered burner patterns can cause sooting Due to high temperatures the appliance should be located out oftraffic 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 Fireplace front and screen be come very hot when running fire place Keep children and adults away from hot surfaces to avoid burns or clothing ignition Fire place will remain hot for a time after shutdown Allow surfaces to cool before touching Carefully supervise young chil dren when they are in the room with fireplace When using the optional hand held remote ac cessory keep selector switch in the OFF position to prevent children from turning on burners with remote You must operate this fireplace wit
11. 115313 03 Bottom Rolled Louver Panel i a Face Weldment 106683 01 106683 01 Firebox Support Leg TE bd Firebox Bottom 20027 20027 Refractory Retainer TR E Firebox Surround ie af Firebox Top Shield d M Firebox Top 106687 01 106687 01 Damper Can Collar id s Insulation Pan Fireplace Top Insulation Fireplace Top 20280 20280 Top Spacer uis i Fireplace Surround 24353 24353 Handy Box Assy 14123 14123 Strain Relief 21171 21171 Gas Knock Out Cover 21379 21379 Gas Conduit 21380 21380 Gas Conduit 107741 04 107741 04 Valve Bracket 14261 14261 Piezo Ignitor 14253 14253 Gas Line Flex w Shut Off 103781 01 103781 01 Gas Control Valve NG 103781 02 103781 02 Gas Control Valve LP 108005 01 108005 01 Wire Harness 108005 02 108005 02 Wire Harness 112465 02 112465 02 Front Ramp Burner 113242 02 113242 03 Rear Ramo Burner i M Grate Assembly M11084 26 M11084 26 Screw 099918 02 099918 02 Pilot Regulator NG Only 099387 12 099387 12 Pilot Tube NG 099387 14 099387 14 Pilot Tube NG 099387 03 099387 03 Pilot Tube LP 101004 08 101004 08 Front Burner Injector NG 101004 06 101004 06 Front Burner Injector LP 101004 04 101004 04 Rear Burner Injector NG 101004 02 101004 02 Rear Burner Injector LP 112708 01 112708 01 Burner Tube 098264 02 098264 02 Male Fitting 098271 01 09827 1 01 Ignitor Cable 103779 01 103779 01 ODS Pilot NG 103778 01 103778 01 ODS Pilot LP 098249 01 098249 01 Nut 103587 01 103587 01 Switch Plate 14579 14579 Switch S
12. 42 See page 42 See page 42 See page 42 Right Refractory See page 42 See page 42 See page 42 See page 42 Rear Refractory See page 42 See page 42 See page 42 See page 42 Bottom Refractory 111817 04 111817 04 111817 04 111817 04 Flexible Dormont T6 21 s 115998 01 115998 01 115998 01 115998 01 3 8 Compression Union PARTS AVAILABLE NOT SHOWN 100563 01 100563 01 100563 01 100563 01 Warning Label 103877 01 103877 01 103877 01 103877 01 Lighting Instruction Plate 100639 01 100639 01 100639 01 100639 01 Caution Decal GA6060 GA6060 GA6060 GA6060 Lava Rock Part shown is not field replaceable EEE EEE EN PEER N Aa 23 EEE EEES M ANO Age EX EEE E AE EE RIN 115254 01A www desatech com 39 ILLUSTRATED PARTS BREAKDOWN REMOTE READY MODELS L36ZNR L36LZNR L36ZPR L36LZPR L42ZNR L42LZNR L42ZPR L42LZPR VL36ZNR VL36LZNR VL36ZPR VL36LZPR VL42ZNR VL42LZNR VL42ZPR AND VL42LZPR 40 www desatech com 115254 01A PARTS LIST This list contains replaceable parts used in your firebox When ordering parts follow the instructions listed under Replacement Parts on page 34 of this manual PART NUMBER KEY V L36ZNR PR V L42ZNR PR NO V L36LZNR PR V L42LZNR PR DESCRIPTION QTY 12116 12116 Screen 106691 01 106691 01 Screen Rod 11418 11418 Push On Nut 107944 01 107944 01 Deflector Hood 115312 01 115312 03 Top Rolled Louver Panel 115313 01
13. Air from Inside Building 115254 01A AIR FOR COMBUSTION AND VENTILATION Continued 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 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 QQ Ventilated Attic Outlet Air To Attic To Crawl Space Inlet Air E Ventilated Inlet Air Crawl Space Figure 4 Ventilation Air from Outdoors INSTALLATION Ay WARNING A qualified ser vice person must install firebox Follow all local codes AX WARNING Never install the firebox in a bedroom or bathroom e in a recreational vehicle where curtains furniture clothing or other flammable objects are less than 42 inches from the front top or
14. Figure 24 and 25 Apply noncorrosive leak detection fluid to all joints Bubbles form ing show a leak 4 Correct all leaks at once Equipment Shutoff Valve Open Closed Figure 23 Equipment Shutoff Valve Equipment Shutoff Valve V C t J Propane LP Supply Tank CEN Control Valve Location Figure 24 Checking Gas Joints Propane LP Gas Only Equipment Shutoff Valve GSS Control Valve Location Figure 25 Checking Gas Joints Natural Gas Only PRESSURE TESTING HEATER GAS CONNECTIONS 1 Open equipment shutoff valve see Figure 23 2 Open main gas valve located on or near gas meter for natural gas or 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 Manually Controlled Mod els or to gas control Remote Ready Models see Figures 24 and 25 Apply noncorrosive leak detection fluid to all joints Bubbles form ing show a leak 5 Correct all leaks at once
15. 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 9 This fireplace needs fresh air ventilation to run properly This fireplace has an Oxygen Deple tion Sensing ODS safety shutoff system The ODS shuts down the fireplace if enough fresh air is not available See Air for Combustion and Ventilation page 7 If fireplace keeps shutting off see Troubleshooting page 29 10 Do not run fireplace where flammable liquids or vapors are used or stored under dusty conditions 11 Do not use this fireplace to cook food or burn paper or other objects 12 Donotuse fireplace if any part has been exposed to or under water Immediately call a qualified service technician to inspect the fireplace and to replace any part of the control system and any gas control which has been under water 13 Do not operate fireplace if any log is broken Do not operate fireplace if a log is chipped dime sized or larger 14 Turn fireplace off and let cool before servicing Only a qualified service person should service and repair fireplace 15 Operating fireplace above elevations of 4 500 feet could cause pilot outage 16 To prevent performance problems in propane LP units do not use propane LP fuel tanks of less than 100 Ibs capacity propane LP units only 17 Provide adequate clearances around air openings LOCA
16. has been triggered Equipment shutoff valve not fully open Pilot flame not touching thermocouple which allows thermocouple to cool caus ing pilot flame to go out This problem could be caused by one or both of the following A Low gas pressure B Dirty or partially clogged ODS pilot Thermocouple connection loose at control valve Thermocouple damaged Control valve damaged 2 After ODS pilot lights keep control knob pressed in 30 seconds Wait one minute for safety in terlock system to reset Repeat ignition operation Fully open equipment shutoff valve A Contact local natural or propane LP gas company B Clean ODS pilot see Cleaning and Maintenance page 28 or replace ODS pilot assembly Hand tighten until snug then tighten 1 4 turn more Replace pilot assembly Replace control valve One or both burners do not light 1 after ODS pilot is lit Delayed ignition of one or both 1 burners Inlet gas pressure is too low Burner orifice s clogged Mislocated crossover tube Remote selector in OFF position Remote Ready Models Only Wire disconnected from gas control Remote Ready Mod els Only Manifold pressure is too low Burner orifice s clogged Mislocated crossover tube 2 3 Contact local natural or pro pane LP gas company Clean burner s see Cleaning and Maintenance page 28 or replace burner orifi
17. money later when you install the fire box Before installation consider the following 1 Where the firebox will be located Allow for wall and ceiling clearances see Installation 9 Clearances page 32 MODELS 2 Everything needed to complete installation 3 These models CANNOT be installed in a bedroom unless the maximum Btu rating of the installed vent free log set is less than 10 000 Btu hr page 7 PRODUCT SPECIFICATIONS Proper air for combustion and ventilation Left Side View with Air Kit Outside Air Kit Location Optional j 221 2 1012 f k 8 1 8 Firebox Top View 3 7he n E t 58 8 15 16 f 7 251 8 gt k 291 2 XA e 19 1 2 gt 36 a 2 8j ll 16 1 16 N 12 14 __Standoffs 7 x NIE 4 Ade i 8 5 8 361 2 Built In pu Right Side Side up View Nailing 321 4 Flanges 187 16 1634 1418 16 196 V 291 2 Square t Gas Line _ ji sue Access 8ta lo uc Holes ET 65h He jr ue J 4 Electrical 6 2 4 Front View Access Hole 8 16 k 93 4 Figure 1 Firebox Dimensions 32 Models 115254 01A www desatech com 5 PRODUCT SPECIFICATIONS Conti
18. remote in the MANU or AUTO mode to prevent inadvertent operation i e children operating the hand held remote control etc The keypad is locked in either on or off Press the POWER and LOCK buttons together to turn the unit on or off 26 www desatech com 115254 01A INSPECTING BURNERS Check pilot flame pattern and burner flame pat terns often PILOT FLAME PATTERN Figure 43 shows a correct pilot flame pattern Figure 44 shows an incorrect pilot flame pattern The incor rect pilot flame is not touching the thermocouple This will cause the thermocouple to cool When the thermocouple cools the heater will shut down If pilot flame pattern is incorrect as shown in Figure 44 turn heater off see To Turn Off Gas to Appli ance page 23 Manually Controlled Models or page 25 Remote Ready Models see Troubleshooting page 29 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 43 Correct Pilot Flame Pattern Your pilot may vary from pilots shown Thermocouple lt Figure 44 Incorrect Pilot Flame Pattern Your pilot may vary from pilots shown FRONT BURNER FLAME PATTERN Figure 45 shows correct front burner flame pat tern Figure 46 shows incorrect front burner flame pattern The incorrect burner flame pattern shows yellow tipping at top of blue flame A WARNING If yellow tipping oc
19. sides of the firebox in high traffic areas in windy or drafty areas Unless the installed log set is rated at 10 000 Btu Hr or less A CAUTION Log heaters in stalledin this firebox create warm air currents These currents move heat to wall surfaces next to fire box Installing firebox nextto vinyl or cloth wall coverings or operat ing firebox where impurities such as but not limited to tobacco smoke aromatic candles clean ing fluids oil or kerosene lamps etc in the air exist may discolor walls or cause odors IMPORTANT Vent free gas log heaters add mois ture to the air Although this is beneficial installing firebox in rooms without enough ventilation air may cause mildew to form from too much moisture See Air for Combustion and Ventilation page 7 IMPORTANT Make sure the firebox is level If firebox is not level log set will not work properly Note Your firebox is designed to be used in zero clearance installations Wall or framing material can be placed against any exterior surface on the rear sides top or bottom of your firebox except where standoff spacers are integrally attached If standoff spacers are attached to your firebox these spacers can be placed directly against wall or fram ing materials Use the dimensions shown for rough opening to create the easiest installation Use dimensions shown for rough openings to create the easiest installation see Built In Firebox Install
20. when the selector INSTRUCTIONS switch is in the ON position after the pilot is lit Ay WARNING e If fireplace has glass doors 5 Wait five 5 minutes to clear out any gas Then smell for gas including near the floor never operate this heater with If you smell gas STOP Follow B in the glass doors closed If you op safety information starting in column 2 erate heater with doors closed page 23 If you don t smell gas go to the heat buildup inside fireplace next step will cause glass to burst Make 6 Press in and turn control knob counter sure there are no obstructions clockwise to the PILOT position across openings of fi replace Press in control knob for five 5 seconds see Figure 37 purest operate ler Note You may be running this heater for with afi replace SCreenin place the first time after hooking up to gas sup Make sure fireplace screen Is ply If so the control knob may need to be closed before running heater pressed in for 30 seconds or less This will allow air to bleed from the gas system NOTICE During initial operation of 7 With control knob pressed in press and new heater burning logs will give release ignitor button This will light pilot offa paper burning smell Oran ge The pilot is attached to the front burner If flame will also be present Op en needed keep pressing ignitor button until pilot lights damper or window to vent smell RUM 2 P f Note If
21. 11084 38 M11084 38 M11084 38 Hex Head Screw 116011 01 116011 01 116011 01 116011 01 Outlet Burner Tube 102963 01 102963 01 102963 01 102963 01 Burner 099056 20 099056 21 099056 20 099056 21 Burner Orifice Injector 102843 01 102843 01 102843 01 102843 01 Burner Clip 099387 05 099387 05 099387 05 099387 05 Pilot Tube 098249 01 098249 01 098249 01 098249 01 M5 Nut 098271 10 098271 10 098271 10 098271 10 Ignitor Cable 104285 01 104286 01 104285 01 104286 01 ODS Pilot 098276 01 098276 01 098276 01 098276 01 1 8 NPT Hex Head Plug 098508 01 098508 01 098508 01 098508 01 Valve Retainer Nut 098534 01 098534 01 098534 01 098534 01 Control Knob 102568 07 102568 08 102568 07 102568 08 Control Valve 116059 01 116059 01 116059 01 116059 01 Inlet Tube 111817 04 111817 04 111817 04 111817 04 Flexible Dormont T6 21 s 115998 01 115998 01 115998 01 115998 01 3 8 Compression Union 108413 01 108413 01 108413 01 108413 01 Shield Firebox Top PARTS AVAILABLE NOT SHOWN 100563 01 100563 01 100563 01 100563 01 Warning Label 101055 02 101055 02 101055 02 101055 02 Lighting Instruction Plate 100639 01 100639 01 100639 01 100639 01 Caution Decal GA6060 GA6060 GA6060 GA6060 Lava Rock Part shown is not field replaceable de de PES AE 2i 2A Ny eX LA nA c3 2X IN Sk 2a cas CX IRN Ami ge X E 24023 23 13 2i Ny 23 E E 23 ING ee L4 Ci 24123 SOINS
22. 115254 01A www desatech com 37 ILLUSTRATED PARTS BREAKDOWN MANUAL MODELS L36EN L36LEN L36EP L36LEP VL36EN VL36LEN VL36EP AND VL36LEP 38 www desatech com 115254 01A PARTS LIST This list contains replaceable parts used in your firebox When ordering parts follow the instructions listed under Replacement Parts on page 34 of this manual PART NUMBER KEY L36EN L36LEN L36EP L36LEP NO VL36EN VL36LEN VL36EP VL36LEP DESCRIPTION 12116 12116 12116 12116 Screen 106691 01 106691 01 106691 01 106691 01 Screen Rod 11418 11418 11418 11418 Push On Nut 107944 01 107944 01 107944 01 107944 01 Deflector Hood 106651 01 Top Panel Smooth 106651 01 106684 01 106684 01 Top Panel 115314 02 115314 02 Bottom Panel Assy Smooth 115314 07 115314 07 Bottom Panel Assy ji I ll Face Weldment 106683 01 106683 01 106683 01 106683 01 Firebox Support Leg ii pe d Firebox Bottom 20027 20027 20027 Refractory Retainer Mi T il Firebox Surround Am En ui ui Firebox Top Shield Ml En ii bi Firebox Top 106687 01 106687 01 106687 01 Damper Can Collar A ii js Insulation Pan i bi E Fireplace Top Insulation a i m Fireplace Top 20280 20280 20280 Top Spacer dil big bis Fireplace Surround 24353 24353 24353 Handy Box Assy 14123 14123 14123 Strain Relief 21171 21171 21171 Gas Knock Out Cover 21379 21379 21379 Gas Conduit 21380 21380 21380 Gas Conduit 116024 01 116024 01 116024 01 116024 01
23. 33 and 34 READ BEFORE LIGHTING 5 Place top left log on middle log as shown in Figure 33 A WARNING If you do not fol 6 Place right and left front logs against grate as low these instructions exactly shown in Figure 34 to hide the controls a fire or explosion may result Top Left Log 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 to the floor because some gas is heavier than air and will settle on the floor WHAT TO DO IF YOU SMELL GAS Do not try to light any appliance Do not touch any electric switch do not use any phone in your building Immediately call your gas supplier from a neighbor s phone Follow the gas supplier s instructions If you cannot reach your gas supplier call the fire department C Use only your hand to push in or turn the gas control knob Never use tools If the knob will not push in or turn by hand don t try to repair it 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 Right FrontiLog Qa been under water Immediately call a Figure 34 Installing Front Logs qualified service technician to inspect the appliance and to replace any part of the c
24. DESA UNVENTED VENT FREE FIREPLACE OWNER S OPERATION AND INSTALLATION MANUAL We recommen d that our products be installed and 9 serviced by professionals who are certified in the U S by NFI c Jj MANUALLY CONTROLLED REMOTE CONTROL READY MODELS MODELS NATURAL GAS NATURAL GAS V L32 HN LHN V L36 ZNR LZNR V L36 EN LEN V L42 ZNR LZNR PROPANE LP GAS PROPANE LP GAS V L32 HP LHP V L36 ZPR LZPR V L36 EP LEP V L42 ZPR LZPR WARNING If the information in this manual is not fol lowed exactly a fire or explosion may result causing property damage personal injury or loss of life Do not store or use gasoline or other flammable vapors and liquids in the vicinity of this or any other appliance WHAT TO DO IF YOU SMELL GAS Do not try to light any appliance Do nottouch any electrical switch do not use any phone in your building Immediately call your gas supplierfrom a neighbor s phone Follow the gas supplier s instructions If you cannot reach your gas supplier call the fire department Installation and service must be performed by a quali fied installer service agency or the gas supplier Save this manual for future reference For more information visit www desatech com WARNING Improper installation adjustment altera tion service or maintenance can cause injury or prop erty damage Refer to this manual for correct installation and operational procedures F
25. ELS V L42 MODELS DESCRIPTION QTY 114984 01 114984 08 Middle Log 114984 02 114984 09 Left Top Log 114984 03 114984 10 Right Top Log 114984 04 114984 11 Rear Log 114984 05 114984 05 Left Control Cover Log 114984 06 114984 06 Right Control Cover Log 114984 07 114984 07 Ember Bed REFRACTORY PART NUMBERS FROM PAGE 41 KEY L36ZNR PR VL36ZNR PR L42ZNR PR VL42ZNR PR NO L36LZNR PR VL36LZNR PR L42LZNR PR VL42LZNR PR DESCRIPTION QTY 106658 02 106658 01 107812 02 107812 01 Left Refractory 106659 02 106659 01 107814 02 107814 01 Right Refractory 106660 02 106660 01 107816 02 107816 01 Rear Refractory 114999 02 114999 01 115263 02 115263 01 Bottom Refractory 115254 01A www desatech com 43 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 FIREPLACE DESA warrants this product to be free from defects in materials and components for four 4 years from the date of first purchase provided that the product has been properly installed operated and maintained in accordance with all applicable instructions To make a claim under this warranty the Bill of Sale
26. L CODES Install and use fireplace 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 Note Where listed vented decorative logs are required thermostat operation is not permitted PRODUCT FEATURES OPERATION This firebox is designed for use with approved ANSI Z21 11 2 decorative type unvented room heaters Physical size limitations apply Refer to minimum firebox requirements supplied with log heater It requires no outside venting or chimney making in stallation easy and inexpensive When used without the blower the firebox requires no electricity mak ing it ideal for emergency backup heat BLOWER ACCESSORY The circulating models will accept a rotary type fan model BK accessory The blower circulates heated air from the firebox into the room Use of blower is optional REFRACTORY BRICK LINER Your firebox may feature a concrete refractory brick liner As with all concrete liners this liner may develop slight cracks when exposed to heat These cracks will not affect the performance of the fireplace or vent free gas logs 4 www desatech com 115254 01A LOCATING FIREBOX PLANNING Plan where you will install the firebox This will save time and
27. LING LOGS Models V L36 ZNR LZNR ZPR LZPR and V LA2 ZNR LZNR ZPR LZPR Ay WARNING Failure to posi tion the parts in accordance with these diagrams or failure to use only parts specifically approved with this heater may result in property damage or personal injury Each log is marked with a number These numbers will help you identify the log when installing It is very important to install these logs exactly as instructed Do not modify logs Only use logs supplied with heater Note Your appliance may vary from model shown but log placement will be the same 1 Place ember bed in center of the base assembly as shown in Figure 32 2 Restrear log in back corner sections of base as sembly as shown in Figure 32 Make sure log is completely vertical and not leaning in toward burner where the flame will touch the log 3 Position middle log as shown in Figure 32 making sure the grooves in the bottom of the log fit over the grate prongs This log will rest on top of the bottom log Middle Log A CES Ember Bed Base Assembly Figure 32 Installing Ember Bed Rear and Middle Logs Figure 31 Installing Crossover Log 4 20 www desatech com 115254 01A INSTALLATION OPERATING FIREPLACE Continued MANUALLY CONTROLLED 4 Place top right log onto pins of middle log MODELS see Figure 32 page 20 The bottom of the top log will rest on the middle log as shown E FOR YOUR SAFETY m in Figures
28. 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 OESA 2701 Industrial Drive P O Box 90004 Bowling Green KY 42102 9004 www desatech com 115254 01 Rev A NOTAUPC 11 04
29. TION Do not allow the vent free gas log heater to touch or extend beyond the fireplace screen ia Project Off this 12 16 20 Surface above the Firebox Hood Note All vertical measurements are from top of fireplace hood opening to bottom of mantel shelf These minimum clearances replace any other recommended clearances supplied with your ANSI Z21 11 2 approved gas logs Wire mesh Screen Supplied Firebox Hood Must Be Used at All Times Figure 6 Minimum Mantel Clearances for Built In Installation BUILT IN FIREBOX INSTALLATION Built in installation of this firebox involves install ing firebox into a framed in enclosure This makes the front of firebox flush with wall Optional brass trim accessories are available see Accessories page 35 The brass trim will extend past sides of firebox approximately 1 2 inch This will cover the rough edges of the wall opening If installing a mantel above the firebox you must follow the clearances shown in Figure 6 Follow these instruc tions to install the firebox in this manner 10 www desatech com 115254 01A INSTALLATION Continued Frame in rough opening The firebox fram ing should be constructed of 2 x 4 lumber or heavier Use dimensions in Table 1 and rough opening layout in Figure 7a Adjust framing so that firebox flushes with finished wall surface If installing in a corner use dimensions in Figures 7b 7c and 7d
30. ammer or pliers 32 models only see Figure 10 Cabinet Mantel E Electrical vA Outlet Figure 11 Inserting Firebox Into Cabinet Mantel Model May Vary From Illustration Gas Line Access Hole Gas Piping Either Side of Firebox Figure 9 Installing Cabinet Mantel 12 www desatech com 115254 01A INSTALLATION Continued INSTALLING OPTIONAL BLOWER ACCESSORIES NOTICE The firebox identifica tion label including model num ber serial number clearances etc is located in the right side screen pocket area on the front of the firebox See Figure 25 page 15 NOTICE If a log set is installed in the firebox disconnect log set from gas supply and remove fromfirebox Contacta qualified service person to do this Note Appearance of firebox may vary depending on model The blower accessory option for use in the vent free fireboxes is model BK Model BK is a rotary squirrel cage type blower with magnetic attach ment and variable speed control The blower is installed by removing the lower face panel To remove the lower face panel pull the left and right latches toward the center of the appliance until they are disengaged from their locator holes see Figure 12 Models with louvered front panels can also be removed by inserting fingertips between slots and gently pulling out DO NOT FORCE The panels are actually held in place by means of a retention dimple embossed on the edge of remov
31. an 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 that 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 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 com pressed 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 Shut off 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 47 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 indicate
32. ation page 11 INSTALLATION CLEARANCES A WARNING Maintain the minimum clearances If you can provide greater clearances from floor ceiling and adjoining wall Carefully follow these instructions This will ensure safe installation Minimum Wall and Ceiling Clearances see Figure 5 page 10 A Clearances from the side of the fireplace cabinet to any combustible material and wall should follow diagram in Figure 5 page 10 Example The face of a mantel bookshelf etc is made of combustible material and protrudes 3 2 from the wall This combus tible material must be 4 from the side of the fireplace cabinet see Figure 5 page 10 115254 01A www desatech com 9 INSTALLATION Continued B Clearances from the top of the firebox opening to the ceiling should not be less than 42 inches C When the firebox is installed on carpeting or other combustible material other than wood flooring the firebox should be installed on a metal or wood panel extending the full width and depth of the enclosure D Clearances from the bottom of firebox to the floor is O inches These fireboxes can be installed as freestanding units against a wall with the approved optional cabinet mantels see Accessories page 35 or as a built in unit The clearances are the same for either installation method Ay CAUTION Do not install the firebox directly on carpet or vinyl NOTICE Surface t
33. back wall by the magnets incorporated onto the blower housing see Figure 14 page 13 4 Be certain that all wire terminals are securely at tached to terminals on blower motor and that the screw retaining the green ground wire is tight 5 Mount speed control box by placing plastic con trol shaft through bottom hole on speed control bracket Top screw head on control box will fit inside top hole on bracket see Figure 15 Secure speed control to bracket with lock nut by pushing and turning lock nut with pliers clockwise until it is tight against bracket 6 Place control knob provided onto control shaft see Figure 15 7 Checkto make sure power cord is completely clear of blower wheel and there are no foreign objects in blower wheel Also double check all wire leads and make sure wire routing is not pinched or in a precarious position Cor rect accordingly Speed Blower Plug In Control Control Shaft Locknut Duplex Outlet Located under firebox floor against lower Control Knob right outside wall Figure 15 Attaching Speed Control to Firebox with Panel Louvers AX CAUTION Never touch the blower wheel while in operation 8 Turn on power to duplex outlet if previously turned off per warning on page 13 9 Plug in blower power cord to duplex outlet see Figure 15 page 13 10 Turn blower on and check for operation Turn blower off by turning knob fully counterclock wise before continu
34. be c cuiua 35 Operating Fireplace sesssss 21 Illustrated Parts Breakdown and Pars List 36 Inspecting Burners esee 27 Warranty Information Back Page Cleaning and Maintenance 28 www desatech com 115254 01A SAFETY INFORMATION WARNING This product con tains and or generates chemicals known to the state of California to cause cancer or birth defects or other reproductive harm IMPORTANT Read this owner s manual carefully and completely before trying to assemble operate or service this heater Improper use of this heater can cause serious injury or death from burns fire explosion electrical shock and carbon monoxide poisoning DANGER Carbon monoxide poisoning may lead to death Carbon Monoxide Poisoning Early signs of carbon monoxide poisoning resemble the flu with headaches dizziness or nausea If you have these signs the heater may not be working properly Get fresh air at once Have heater serviced Some people are more affected by carbon monoxide than others These include pregnant women people with heart or lung disease or anemia those under the influence of alcohol and those at high altitudes Natural and Propane LP Gas Natural and pro pane LP gases are odorless An odor making agent is added to the gas The odor helps you detect a gas leak However
35. ce s Contact qualified service person Put remote selector in ON position See Wiring Diagram page 33 Contact local natural or pro pane LP gas company Clean burner s see Cleaning and Maintenance page 28 or replace burner orifice s Contact qualified service person 30 www desatech com 115254 01A 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 28 or replace burner orifice 2 Replace damaged burner 3 Replace gas regulator Yellow flame in front burner dur ing burner combustion 1 Not enough air 2 Gas regulator defective 1 Check burner s for dirt and debris If found clean burner s see Cleaning and Maintenance page 28 2 Replace gas regulator Slight smoke or odor during initial operation Heater produces a whistling noise when burners are lit 1 Residues from manufacturing processes and logs curing 1 Turning control knob to HI position when burners are cold 2 Air in gas line 3 Air passageways on heater blocked 4 Dirty or partially clogged burner orifice s 1 Problem will stop after a few hours of operation 1 Turn control knob to LO po sition and let warm up for a minute 2 Operate burners until air is removed from line Have gas
36. curs your heater could pro duce increased levels of carbon monoxide If front burner flame pattern shows yellow tipping follow instructions at bottom of this page Yellow flame on rear burner is normal NOTICE Do not mistake orange flames with yellow tipping Dirt or other fine particles are burned by heater causing brief patches of orange flame Tf front burner flame pattern is incorrect as shown in Figure 46 turn heater off see To Turn Off Gas to Appli ance page 23 Manually Controlled Models or page 25 Remote Ready Models see Troubleshooting page 29 Figure 45 Correct Front Burner Flame Pattern CANC OU Figure 46 Incorrect Front Burner Flame Pattern 115254 01A www desatech com 27 CLEANING AND MAINTENANCE AX WARNING Turn off heater and let cool before cleaning A CAUTION You must keep control areas burners 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 pet hair bedding material 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 AND PILOT AIR INLET HOLE The primary air inlet holes allow the proper amount of air to mix with the gas This provides a cle
37. d Brass PT32PB 32 Perimeter Trim Polished Brass PT32P 32 Perimeter Trim Platinum PT36 36 Perimeter Trim Black PT36B 36 Perimeter Trim Brushed Brass PT36PB 36 Perimeter Trim Polished Brass PT36P 36 Perimeter Trim Platinum PT42 42 Perimeter Trim Black PT42B 42 Perimeter Trim Brushed Brass PT42PB 42 Perimeter Trim Polished Brass PT42P 42 Perimeter Trim Platinum RECEIVER AND HAND HELD THERMOSTAT REMOTE CONTROL KIT GHRCTB For all models Allows the gas log heater to be oper ated in a manually or thermostatically 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 GHRCB For all models Allows the gas log heater to be turned on and off by using a hand held remote control 115254 01A www desatech com 35 ILLUSTRATED PARTS BREAKDOWN MANUAL MODELS L32HN L32LHN L32HP L32LHP VL32HN VL32LHN VL32HP AND VL32LHP 36 www desatech com 115254 01A PARTS LIST This list contains replaceable parts used in your firebox When ordering parts follow the instructions listed under Replacement Parts on page 34 of this manual PART NUMBER KEY L32HN L32HP L32LHN L32LHP NO VL32HN VL32HP VL32LHN VL32LHP DESCRIPTION 108441 01 108441 01 108441 01 108441 01 Screen 108701 01 108701 01 108701 01 108701 01 Screen Rod 11418 11418 11418 11418 Push On N
38. e ignitor cable if pinched by any metal or tubing Keep ignitor cable dry Tighten nut holding piezo ig nitor to base panel of log set Nut is located behind base panel Replace ignitor cable Replace piezo ignitor Replace pilot assembly for remote ready units Replace ignitor electrode for variable manually controlled units When ignitor button is pressed there is spark at ODS pilot but no ignition Gas supply turned off or equip ment shutoff valve closed Control knob not in PILOT position Control knob not pressed in while in PILOT position Air in gas lines when installed 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 operation until air is removed 5 Depleted gas supply pro 5 Contact local propane LP gas pane LP only company 6 ODS pilot is clogged 6 Clean ODS pilot see Cleaning and Maintenance page 28 or replace ODS pilot assembly 7 Gas regulator setting is not 7 Replace gas regulator correct 115254 01A www desatech com 29 TROUBLESHOOTING Continued OBSERVED PROBLEM POSSIBLE CAUSE REMEDY ODS pilot lights but flame goes 1 Control knob not fully 1 Press in control knob fully out when control knob is re leased 2 pressed in Control knob not pressed in long enough Safety interlock system
39. ee Page 43 See Page 43 Left Refractory See Page 43 See Page 43 Right Refractory See Page 43 See Page 43 Rear Refractory See Page 43 See Page 43 Bottom Refractory 112782 02 112782 02 Air Deflector Bracket de k dee de Ba Sasa o 112713 03 112713 03 Pilot Bracket PARTS AVAILABLE NOT SHOWN 100563 01 100563 01 Warning Label 103877 01 103877 01 Lighting Instruction Plate 100639 01 100639 01 Caution Decal GA6060 GA6060 Lava Rock Part shown is not field replaceable 115254 01A www desatech com 41 ILLUSTRATED PARTS BREAKDOWN AND PARTS LIST LOG SETS FOR MODELS L36EN L36LEN L36EP L36LEP VL36EN VL36LEN VL36EP AND VL36LEP KEY LOG NO PART NUMBERS DESCRIPTION 110314 01 Front Left Log 110314 02 Front Right Log 110314 03 Middle Log 110314 04 Rear Log 110314 05 Crossover Log REFRACTORY PART NUMBERS FROM PAGE 39 L36LEN VL36LEN L36LEP VL36LEP DESCRIPTION 106658 02 106658 02 106658 01 106658 01 Left Refractory 106659 02 106659 02 106659 01 106659 01 Right Refractory 106660 02 106660 02 106660 01 106660 01 Rear Refractory 114999 02 114999 02 114999 01 114999 01 Bottom Refractory 42 www desatech com 115254 01A ILLUSTRATED PARTS BREAKDOWN AND PARTS LIST LOG SETS FOR MODELS L36ZNR L36LZNR L36ZPR L36LZPR VL36ZNR VL36LZNR VL36ZPR VL36LZPR L42ZNR L42LZNR L42ZPR L42LZPR VL42ZNR L42LZNR VL42ZPR AND VL42LZPR KEY LOG PART NUMBERS NO V L36 MOD
40. emperatures ofadjacent 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 product standard Follow all minimum clearances shown in this manual NOTICE If your installation does notmeetthe minimum clearances shown you must do one of the following raise the mantel to an accept able height remove the mantel Mantel Shelf Note Any portion of the mantel shelf must NOT extend beyond this profile Material May Wall board or facing f 12 4 material above n firebox may be of 107 combustible material 3 including decorative rd Exa m p le 8 mantel ornaments or 7 other similar projec 5 n tions off of the facing i material 3 2 2 Framing 1 ES Material 7 8 r1 7 16 Firebox FIREBOX 5 1 2 4 6 8 10 12 14 16 INCHES Minimum 16 inches from Side Wall Figure 5 Minimum Clearance for Combustible to Wall Mantel Clearances for Built In Installation If placing custom mantel above built in firebox you must meet the minimum allowable clearance between mantel shelf and top of firebox opening shown in Figure 6 These are the minimum allow able mantel clearances for a safe installation Use larger clearances wherever possible to minimize the heating of objects and materials placed on the mantel A CAU
41. en propane LP supply and heater See guidelines under Con necting to Gas Supply page 16 115254 01A www desatech com 17 INSTALLATION Continued 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 Capoffopenend of gas pipe where equipment shutoff valve was connected 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 5 Correct all leaks at once 6 Reconnect heater and equipment shutoff valve to gas supply Check reconnected fit tings for leaks Test Pressures Equal To or Less Than 1 2 PSIG 3 5 kPa 1 Close equipment shutoff valve see Figure 23 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 uy Check all joints from gas meter to equipment shutoff valve for natural gas or propane LP supply to equipment shutoff valve for propane LP see
42. ening Dimensions for Built in Installation Ay WARNING Do not allow noncombustible materials to cover any necessary openings like louvered slots AX WARNING Use only non combustible mortar or adhe sives when overlapping the front facing with noncombustible facing material AE ER IN Figure 7a Depa E Wikre x Height Nid Yoside to lnside C Figure 7b lt 34 8 60 TOP VIEW Figure 7c Figure 7d 86 TOP VIEW Figure 7 Rough Opening for Installing in Wall Nails or Wood Screws N n id Front Width Depth Z Model Inside to Inside Height Min 32 34 7 8 36 2 4 16 14 Nailing 36 44 1 40 112 120 3 4 Flanges ZA 42 48 5 8 44 1 2 22 5 8 Figure 8 Attaching Firebox to Wall Studs 115254 01A www desatech com 11 INSTALLATION Continued INSTALLING FIREBOX USING OPTIONAL ACCESSORY MANTELS Ay WARNING A qualified ser vice person must install firebox Follow all local codes This firebox may be installed using a cabinet mantel accessory against a wall in your home The firebox and cabinet mantel can be installed Install the trim kit furnished with mantel See in struction sheet included with the mantel now If installing an optional blower access
43. er piping check local codes sealant resistant to propane LP gas equipment shutoff valve test gauge connection sediment trap tee joint pipe wrench approved flexible gas line with gas connector Gf allowed by local codes not provided ACSA design certified equipment shutoff valve with 1 8 NPT tap is an acceptable alternative to test gauge connection Purchase the optional CSA design certified equipment shutoff valve from your dealer See Accessories page 35 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 20 Pointing the vent down protects it from freezing rain or sleet A CAUTION Use only new black iron orsteel pipe Internally tinned copper tubing may be used in certain areas Check your local codes Use pipe of 1 2 diameter or greaterto allow proper gas vol ume to heater If pipe is too small undue loss of volume will occur Installation must include an equipment shutoff valve union and plugged 1 8 NPT tap Locate NPT tap within reach for test gauge hook up NPT tap must be upstream from heater see Figure 21 or 22 page 17 depending on your model IMPORTANT I
44. fall into one of the three fol lowing ventilation classifications 1 Unusually Tight Construction 2 Unconfined Space 3 Confined Space The information on page 7 through 9 will help you classify your space and provide adequate ventilation Unusually Tight Construction The air that leaks around doors and windows may provide enough fresh air for combustion and ventilation However in buildings of unusually tight construction you must provide additional fresh air Unusually tight construction is defined as construction where walls and ceilings exposed to the out side atmosphere have a continuous water vapor retarder with a rating of one perm 6 x 1071 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 9 If your home does not meet all of the three criteria above proceed to Determining Fresh Air Flow for Firebox 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 les
45. for rough opening Install gas piping to firebox location see Connecting to Gas Supply page 16 IM PORTANT If installing blower accessory circulating models with louvers only see Hard Wiring Firebox page 15 Carefully set firebox in front of rough open ing with back of firebox inside wall opening IMPORTANT If installing a perimeter trim kit see instructions included with trim accessory You must install shoulder screws from trim kit now Carefully insert firebox into rough opening Attach firebox to wall studs using nails or wood screws through holes in nailing flange see Figure 8 If using an optional perimeter trim kit install the trim after final finishing and or painting of wall See instructions included with trim accessory for attaching trim Install and properly test gas log heater Follow installation instructions included with the vent free gas log heater that is being installed IMPORTANT When finishing your firebox combus tible materials such as wall board gypsum board sheet rock drywall plywood etc may be butted up next to the sides and top ofthe firebox Combustible materials should never overlap the firebox front facing R WARNING Do not allow any combustible materials to overlap the firebox front facing IMPORTANT Noncombustible materials such as brick tile etc may overlap the front facing but should never cover any necessary openings like louvered slots Table 1 Rough Op
46. h the fireplace screen and hood in place Make sure fire place screen and hood are in place before running heater Keep the appliance area clear and free from combustible ma terials gasoline and other flam mable vapors and liquids 115254 01A www desatech com SAFETY INFORMATION Continued 1 This appliance is only for use with the type of gas indicated on the rating plate This appliance is not convertible for use with other gases 2 Do not place propane LP supply tank s in side any structure Locate propane LP supply tank s outdoors propane LP units only 3 If you smell gas shut off gas supply do not try to light any appliance do not touch any electrical switch do not use any phone in your building e immediately call your gas supplier from a neighbor s phone Follow the gas supplier s instructions if you cannot reach your gas supplier call the fire department 4 This fireplace shall not be installed in a bed room or bathroom 5 Do not use this fireplace as a wood burning fireplace Use only the logs provided with the fireplace 6 Do not add extra logs or ornaments such as pine cones vermiculite or rock wool Using these added items can cause sooting Do not add lava rock around base Rock and debris could fall into the control area of fireplace 7 To prevent the creation of soot follow the instruc tions in Cleaning and Maintenance page 28 8 Before using furniture polish wax
47. ing 11 Peeloff backing paper and stick supplied wiring diagram decal on firebox bottom approximately 12 in from of blower see Figure 16 12 Replace all panels and or brick bottom panel if previously removed Variable Fan Switch Fan Switch N O Off Red BKT Model 110 115 Only V A C Black 0 Blower Motor Wiring Diagram Decal 12 in Front of Blower Figure 16 Location of Wiring Diagram Decal Model May Vary From Illustration 14 www desatech com 115254 01A INSTALLATION Continued HARD WIRING FIREBOX NOTICE A qualified electrician must connect electrical wiring to duplex outlet for built in instal lation Follow all local codes In absence of local codes fol low The National Electric Code ANSI NFPA 70 The Handy Box with duplex outlet is provided in the firebox located in the lower right base area 1 Remove screw holding duplex outlet cover to handy box Remove duplex outlet 2 Route electrical cable through strain relief and handy box see Figure 17 3 Connect electrical cable to duplex outlet Match wire colors to those on duplex outlet Be sure to connect the ground wire 4 Place duplex outlet back into handy box and secure with screws Replace outlet cover ij Duplex Box Handy Box uw Strain Relief Figure 17 Hard Wiring Firebox INSTALLING FIREPLACE HOOD AND SCREEN 1 Attach hood to firebox u
48. nal replacement part s call DESA at 1 866 672 6040 for referral information When calling DESA have ready model number of your firebox the replacement part number Note The firebox identification label including model number serial number clearances etc is located on the right front edge of the firebox 34 www desatech com 115254 01A ACCESSORIES NOTICE All accessories may not be available for all fireplace models Purchase these firebox accessories from your local dealer If they can not supply these accessories call DESA s Sales Department at 1 866 672 6040 for information You can also write to the address listed on the back page of this manual EQUIPMENT SHUTOFF VALVE GA5010 All Models Equipment shutoff valve with 1 8 NPT tap CLEANING KIT GCK CCK All Models Your vent free gas appliance requires 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 FIRE CRACKEL CF6 A Creates the sound of a real burning fire BLOWER KIT BK Squirrel Cage Blower With Speed Control MANTELS GMC36FA 32 Corner Mantel Walnut Stained GMC37UA 32 Corner Mantel Unfinished GMC13FD 32 Cabinet Mantel Oak Finish GMC11FD 32 Cabinet Mantel Walnut Stained GMC12UD 32 Cabinet Mantel Unfinished GM202FC 32 Corner Mantel Oak Finish GM102WC 32 Cabinet Mantel
49. nob clockwise Pilot Burner to the OFF position Pilot Burner Thermocouple Figure 36 Pilots 22 www desatech com 115254 01A OPERATING FIREPLACE Continued VARIABLE CONTROL E A OPERATION The variable control valve can be set to any A WARNING If you do not fol heat setting and flame height desired by sim low these instructions exactly ply turning the control knob until that setting d i a fire or explosion may result is attained Even the lowest setting provides 4 realistic flames and glowing embers from two causing property damage per sonal injury or loss of life REMOTE READY MODELS FOR YOUR SAFETY READ BEFORE LIGHTING burners Selecting higher settings produces greater heat output This results in increased heating comfort A This appliance has a pilot which must be lighted by hand When lighting the pilot follow these instructions exactly B BEFORE LIGHTING smell all around the appliance area for gas Be sure to smell next to the floor because some gas is heavier than air and will settle on the floor WHAT TO DO IF YOU SMELL GAS Do not try to light any appliance Do not touch any electric switch do not use any phone in your building Inmediately call your gas supplier from a neighbor s phone Follow the gas supplier s instructions AX WARNING Do not operate heater between locked positions AX CAUTION Do not try to ad just heating levels by using the equipmen
50. nstall equipment shutoff valve in an accessible location The equipment shutoff valve is for turning on or shutting off the gas to the appliance Apply pipe joint sealant lightly to male NPT threads This will prevent excess sealant from going into pipe Excess sealant in pipe could result in clogged heater valves Ay WARNING Use pipe joint sealantthatis resistantto liquid petroleum LP gas Propane LP Supply Tank External Regulator Vent Pointing Down 3 Figure 20 External Regulator with Vent Pointing Down 16 www desatech com 115254 01A INSTALLATION Continued We recommend that you install a sediment trap in supply line as shown in Figures 21 and 22 depend ing on your model 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 Ay CAUTION Avoid damage to regulator Hold gas regulator with wrench when connecting it to gas piping and or fittings Variable Manually Controlled Models Only A CAUTION Avoid damage to gas control Hold gas control with wrench when connecting it to gas piping and or fittings Remote Ready Models Only CSA De
51. nued 36 AND 42 MODELS Note If only one dimension is shown the dimension is the same for both 36 and 42 models Firebox Top View Left Side T 291 18 36 Models a Outside Air Gt jp 991 y gt View with 4 36 8 42 Models Air Kit Kit Location i ional d ii 10 1 2 lt gt 36 Models O 1212 8 42 Models O 24 f ee 101 36 Models j 7 5 8 10 1 4 42 Models 7 1 4 36 Models 293 8 36 Models 361 2 42 Models gt 9 42 Models 35 36 Models 42 42 Models gt 41 s 36 Models 481 8 42 Models 2415 16 36 Models 43 36 Models 50 42 Models Le 267 e 42 Models gt 313 46 5 211 8 36 Models gt 231 16 42 Models N z z z z y 9 9 6 lo UE Full Length Nailing 2 uz Models Flanges Top amp Sides g E a E 8 lt P ji H 28 u Right 21 36 M g i Ig er Side 241 16 42 Models 2 2 i 191 2 36 Models T 7 E View 227 16 42 Models B 35 36 Models o rEg 42 42 Models 9 i drg e O L 81 3 l O ue a P j 2 2w U Ui 108 _ 2 Electrical 86 Models Front View Acces
52. ontrol system and any gas control which has been under water 115254 01A www desatech com 21 OPERATING FIREPLACE Continued LIGHTING Ad WARNING If fireplace has glass doors never operate this heater with glass doors closed If you op erate heater with doors closed heat buildup inside fireplace will cause glass to burst Make sure there are no obstructions across openings of fireplace You must operate this heater with a fireplace screen in place Make sure fireplace screen is closed before run ning heater NOTICE During initial operation of new heater burning logs will 4 Wait five 5 minutes to clear out any gas Then smell for gas including near the floor If you smell gas STOP Follow B in the safety information in column 1 If you don t smell gas go to the next step Press in control knob and turn counter clockwise 42 to the PILOT position Keep control knob pressed in for five 5 seconds see Figure 35 Note You may be running this heater for the first time after hooking up to gas sup ply If so the control knob may need to be pressed in for 30 seconds or more This will allow air to bleed from the gas system With control knob pressed in press and release ignitor button This will light pilot The pilot is attached to the front burner If needed keep pressing ignitor button until pilot lights Note If pilot does not light contact a qualified service person or gas
53. or assistance or addi tional information consult a qualified installer service agency or the gas supplier WARNING FOR USE ONLY WITH A LISTED DECORA TIVE TYPE UNVENTED ROOM HEATER DO NOT BUILD A WOOD FIRE 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 State of Massachusetts The installation 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 Common wealth of Massachusetts TABLE OF CONTENTS Safety Information ivi is 3 Troubleshooting eee 29 Local CodeS Pr 4 Sp cifications iere Lee cerent rein 33 Product Features iere 4 Wiring Diagram tenen 33 Eocatitg FEITebOX ici 5 SENICE Hihls iei oit eet 34 Product Specifications eee 5 Technical Service nr 34 Air For Combustion and Ventilation 7 Replacement Parts sees 34 cce M O ACCOSSONOS i i rere t
54. 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 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 As with all concrete liners this liner may develop slight cracks when exposed to heat This cracking is considered normal 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 ALLOTHER EXPRESSED WARRAN TIES AND LIMITS THE DURATION OFANY AND ALL IMPLIED WARRANTIES INCLUDING WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE TO FOUR 4 YEARS
55. or gas control Gas odor during combustion 1 Foreign matter between con trol valve and burner 2 Gas leak See Warning statement at top of page 1 Take apart gas tubing and remove foreign matter 2 Locate and correct all leaks see Checking Gas Connec tions page 17 Log set cycles to pilot but room tem perature drops to a lower than ideal level before log set comes back on 1 Hand held remote control is too close to heater Remote Ready Models Only 1 Move hand held remote con trol unit farther away from the heater 32 www desatech com 115254 01A SPECIFICATIONS Manually Controlled Models V L32 HN LHN HP LHP Btu Variable 16 000 27 000 Type Gas Propane LP Natural Ignition Piezo Manifold Pressure 7 9 W C 3 4 W C Inlet Gas Pressure in of water Maximum 14 10 5 Minimum 11 5 Shipping Weight 104 lbs For purpose of input adjustment V L36 EN LEN EP LEP 20 000 33 000 Propane LP Natural Piezo 7 9 W C 3 4 W C 14 10 5 11 5 184 lbs Remote Ready Models V L36 ZNR LZNR ZPR LZPR Btu Variable 25 000 36 000 Type Gas Propane LP Natural Ignition Piezo 7 9 W C 3 4 W C Inlet Gas Pressure in of water Manifold Pressure Maximum 14 10 5 Minimum 11 5 Shipping Weight 184 lbs For purpose of input adjustment WIRING DIAGRAM REMOTE READY MODELS ONLY Thermopile V L42 ZNR LZNR ZPR
56. ors Example Gas water heater 40 000 Btu Hr Vent free heater 39000 Btu Hr Total 79000 Btu Hr 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 63 360 Btu Hr maximum the space can support 79 000 Btu Hr actual amount of Btu Hr used 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 perma nent openings one within 12 of the ceiling and one within 12 of the floor on the wall connecting the two spaces see options 1 and 2 Figure 4 You can also remove door into adjoining room see option 3 Figure 3 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 ASS dE 12 Ventitation Grills Ventilation Grills Into Or Into Adjoining Room Adjoining Remove Option 2 Room Door into Option 1 Adjoining Room Option O 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 8 www desatech com Figure 3 Ventilation
57. ory cir culating models only see nstalling Optional Blower Accessories page 13 Carefully insert firebox into cabinet mantel Be careful not to scratch firebox cabinet mantel flooring etc when installing see Figure 11 Install and properly test gas log heater Follow installation instructions included with the vent free gas log heater that is being installed directly on the floor A trim kit is included with the mantel accessories 1 Assemble cabinet mantel accessory and the trim kit Assembly instructions are included with each accessory 2 Ifusing an optional blower accessory circulat ing models only install a properly grounded 120 volt three prong electrical outlet at firebox Nailing location if an outlet is not there If possible Flanges locate outlet so cabinet mantel will cover it when installed see Figure 9 3 Install gas piping to firebox location See Connecting to Gas Supply page 15 You may have to cut an access hole in the floor or wall Figure 10 Location of Nailing Flanges to run gas line to firebox Make sure to locate Two on Each Side 32 Model Shown access hole so cabinet mantel will cover it Model May Vary From Illustration when installed see Figure 9 4 Place cabinet mantel on floor in desired loca tion Make sure mantel is flush against wall 5 Breakoffnailing flanges with h
58. pilot does not stay lit contact a This will only last a few hours qualified service person or gas supplier for repairs Until repairs are made light pilot with match To light pilot with match see Manual Lighting Procedure page 25 8 Keep control knob pressed in for 30 seconds Note Home owners generally prefer to op erate their heater with the chimney damper closed This will put all the heat into the room However there may be times you will desire the full flames of the HI heat setting but will after lighting pilot After 30 seconds release find the heat output excessive You can open control knob the chimney damper if you have one fully or If control knob does not pop out when partially to release some of the heat released contact a qualified service person or gas supplier for repairs WARNING Damper handle will Note If pilot goes out repeat steps 4 through 8 be hot if heater has been running 1 STOP Read the safety information start ing in column 2 2 Make sure equipment shutoff valve is Control Knob fully open 3 Set selector switch in the OFF position par O 4 Press in and turn control knob clockwise A T ON to the OFF position see Figure 37 Ignitor Button Flame Selector Adjustment Hei Knob Switch in OFF Position Figure 37 Control Knob and Ignitor Button Location 24 www desatech com 115254 01A OPERATING FIREPLACE Continued 9 Slightl
59. r if desired Two Piece Log Set Burner Ports Figure 27 Installing Vintage Oak Two Piece Log Set Top View INSTALLING LOGS Models L36 EN LEN EP LEP and VL36 EN LEN EP LEP Ay WARNING Failure to posi tion the parts in accordance with these diagrams or failure to use only parts specifically approved with this heater may result in property damage or personal injury It is very important to install these logs exactly as instructed Do not modify logs Only use logs supplied with heater Note Your appliance may vary from model shown but log placement will be the same 1 Place front logs 1L and 1R on top of grate Make sure notches in bottom of logs fit over grate prongs see Figure 28 2 Rest bottom of center log 2 behind metal posts on front burner see Figure 29 page 20 Make sure grooves in bottom of log fit over grate Bring log forward against metal posts Figure 28 Installing Front Logs 115254 01A www desatech com 19 INSTALLATION Continued 3 Slide groove on back of rear log against the rear grate prongs Make sure the peg on the log is on top see Figure 30 4 Place the crossover log on the rear and middle logs Make sure peg on rear log is in the hole in bottom of crossover log The crossover log should fit in cutout of middle log see Figure 31 Center Log 2 Grate Figure 30 Installing Rear Log 3 Crossover Log 4 w INSTAL
60. s 10 4 42 Models Hole 1212 gt 14 36 Models 16 42 Models Figure 2 Firebox Dimensions 36 and 42 Models 6 www desatech com 115254 01A AIR FOR COMBUSTION AND VENTILATION AR WARNING This firebox 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 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 effi cient 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 fireboxes 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
61. s dust and dirt in the pilot as sembly There is a small pilot air inlet hole about two inches from where the pilot flame comes out of the pilot assembly see Figure 48 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 Primary Air Inlet Holes Figure 47 Injector Holder On Outlet Burner Tube Burner will vary by model Pilot Air Inlet Hole Pilot Air Inlet Hole assembly may vary from pilots shown CLEANING LOGS Ifyou remove logs for cleaning refer to Install ing Logs page 19 to properly replace logs Replace log s if broken or chipped dime sized or larger 28 www desatech com 115254 01A TROUBLESHOOTING WARNING Turn offand unplug heaterand letcool 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 POSSIBLE CAUSE OBSERVED PROBLEM REMEDY When ignitor button is pressed there is no spark at ODS pilot Ignitor electrode not con nected to ignitor cable Ignitor cable pinched or wet Piezo ignitor nut is loose Broken ignitor cable Bad piezo ignitor Ignitor electrode positioned wrong or broken 1 2 Reconnect ignitor cable Fre
62. s 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 openings 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 door less passageways or ventilation grills between the rooms 115254 01A www desatech com T AIR FOR COMBUSTION AND VENTILATION Continued Determine the volume of the space length x width x height Length x Width x Height volume of space Example Space size 22 ft length x 18 ft width x 8 ft ceiling height 3168 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 A Rework worksheet adding the space of an
63. seconds after lighting pilot After 30 seconds release control knob Now follow steps 9 and 10 under Lighting Instructions column 1 oH OPTIONAL HAND HELD mH REMOTE OPERATION Note All remote control accessories must be purchased separately see Accessories page 35 Follow instructions included with the remote control NOTICE You must light the pilot before using the hand held re mote control unit See Lighting Instructions on page 24 After lighting let pilot flame burn for about one minute Turn control knob to ON posi tion Adjust flame adjustment knob anywhere between HI and LO Slide the selector switch to the REMOTE position see Figure 40 Note The burner may light if hand held remote 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 selector switch in the REMOTE or ON position when the pilot is not lit This will drain the battery Control Knobin Flame Adjustment On Position Knob V 0 Selector Toggle Switch Optional Remote Control Figure 40 Setting the Selector switch Control Knob and Flame Adjustment Knob for Remote Operation 115254 01A www desatech com 25 OPERATING FIREPLACE Continued ON OFF SERIES MODEL GHRCB Hold the control button on the hand held remote until burner turns on Hold the control button again until burner turns off see Figure 41
64. sign Certified Equipment Propane LP Shutoff Valve with From External LE Approved Regulator Flexible 11 W C Gas Hose if to 14 WC allowed by Pressure XQ local codes e Natural a lt a From Gas ay Meter 5 L8 W C to 13 Minimum Y 10 5 W C Pressure Tee Cap Pipe Gas Joint Nipple Regulator Sediment Trap Figure 21 Attaching Flexible Gas Line to Control Valve Manually Controlled Models CSA Design Certified Equipment Shutoff Valve with 1 8 NPT Tap Approved Propane LP Flexible From External Gas Hose if Regulator allowed by 11 W C to 14 local codes W C Pressure Natural From Gas Meter 5 3 Minimum 4 W C to 10 5 W C Pressure Pipe Cap Tee Nipple Joint Gas Control Sediment Trap Figure 22 Attaching Flexible Gas Line to Control Valve Remote Ready Models Purchase the optional CSA design certified equipment shutoff valve from your dealer See Accessories page 35 Minimum inlet pressure for purpose of input adjustment CHECKING GAS CONNECTIONS AR 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 betwe
65. sing screws provided see Figure 18 2 Inserteach rod through all rings located at top of screen 3 Insert first rod into rear hole in left side of firebox Fasten rod to rear hole near center of firebox using 10 x 3 8 Phillips screw provided see Figure 19 4 Insert other rod into front hole on right side of firebox and fasten using remaining Phillips screw Figure 18 Screw and Hood Placement Model May Vary From Illustration Top View of Rod Layout L y Rear Hole Screen Figure 19 Installing Fireplace Screen Model May Vary From Illustration 115254 01A www desatech com 15 INSTALLATION Continued CONNECTING TO GAS SUPPLY AX WARNING This appliance requires a 1 2 NPT National Pipe Thread inlet connection to the pressure regulator A WARNING A qualified ser vice person must connect heater to 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 external regulator supplied by install
66. supplier for repairs Until repairs are made light pilot with match To light pilot with match see Manual Lighting Procedure page 23 Keep control knob pressed in for 30 seconds after lighting pilot After 30 seconds release control knob give off a paper burning smell Orange flame will also be pres ent Open damper or window to vent smell This will only last a few hours If control knob does not pop out when released contact a qualified service person or gas supplier for repairs Note If pilot goes out repeat steps 3 through 7 8 Push in and turn control knob counter clockwise to the HI position Both burners should light Set control knob to desired setting Control Knob Ignitor Lo PILOT Button 0 OFF Note Home owners generally prefer to op erate their heater with the chimney damper closed This will put all the heat into the room However there may be times you will desire the full flames of the High heat setting but will find the heat output excessive You can open the chimney damper if you have one fully or partially to release some of the heat AX WARNING Damper handle A will be hot if heater has been running Figure 35 Control Knob and Ignitor 1 STOP Read the safety information in Button Location column 2 page 21 3 Mak cid Thermocouple Ignitor mid sure equipment shutoff valve is fully Ignitor Electrode Electrode 3 Press in and turn control k
67. t shutoff valve TO TURN OFF GAS TO APPLIANCE Shutting Off Heater l Press in and turn control knob clockwise If you cannot reach your gas supplier call NX to the HI position the fire department p p 2 Turn the control knob clockwise to Use only your hand to push in or turn the the PILOT position gas control knob Never use tools If the 3 Press in control knob and turn clockwise knob will not push in or turn by hand don t to the OFF position try to repair it call a qualified service tech Shutting Off Burners Only pilot stays lit nician or gas supplier Force or attempted repair may result in a fire or explosion 1 Turn the control knob clockwise w to Do not use this appliance if any part has the HI position been under water Immediately call a 2 Press in and turn control knob clockwise ON to the PILOT position MANUAL LIGHTING PROCEDURE E Follow steps 1 through 5 under Lighting Instructions page 22 Depress control knob and light pilot with match Keep control knob pressed in for 30 seconds after lighting pilot After 30 seconds release control knob Now follow step 8 column 2 page 22 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 115254 01A www desatech com 23 OPERATING FIREPLACE Continued A WARNING Burners will come on automatically within ERE LIGHTING one minute
68. tion Re mote Ready Models Only 1 Battery is not installed Bat tery power is low 1 Replace 9 volt batteries in re ceiver and hand held remote Heater produces a clicking tick ing noise just after burners are lit or shut off 1 Metal expanding while heating or contracting while cooling 1 This iscommon with most heat ers If noise is excessive contact qualified service person Heater produces unwanted odors 1 Heater burning vapors from paint hair spray glues clean ers chemicals new carpet etc See IMPORTANT state ment above 2 Low fuel supply propane LP only 3 Gas leak See Warning statement at top of page 1 Open window to ventilate room Stop using odor caus ing products while heater is running 2 Refill supply tank propane LP only 3 Locate and correct all leaks see Checking Gas Connections page 17 Heater shuts off in use ODS operates 1 Not enough fresh air is avail able 2 Low line pressure 3 ODS pilot is partially clogged 1 Open window and or door for ventilation 2 Contact local natural or pro pane LP gas company 3 Clean ODS pilot see Cleaning and Maintenance page 28 Gas odor even when control knob is in OFF position 1 Gas leak See Warning statement at top of page 2 Control valve or gas control defective 1 Locate and correct all leaks see Checking Gas Connections page 17 2 Replace control valve
69. ut 108414 01 108414 01 108414 01 108414 01 Deflector Hood 108423 01 108423 01 Face Top Panel Black 108423 02 108423 02 Louver Face Top Panel 115314 01 115314 01 Face Bottom Assembly 115314 04 115314 04 Louver Face Bottom Assy bs ii il Face Weldment 106683 01 106683 01 106683 01 106683 01 Firebox Support Leg 108434 01 108434 01 108434 01 108434 01 Left Refractory 108430 01 108430 01 108430 01 108430 01 Rear Refractory 108432 01 108432 01 108432 01 108432 01 Right Refractory 115262 01 115262 01 115262 01 115262 01 Bottom Refractory 116024 01 116024 01 116024 01 116024 01 Valve Bracket ud id Tt Um Firebox Bottom i Hi dis i Firebox Surround 20027 20027 20027 20027 Refractory Retainer bli AT bid Firebox Top Insulation Firebox Top 108415 01 108415 01 108415 01 108415 01 Starter Pipe Collar id m lei Insulation Pan 108403 03 108403 03 108403 03 108403 03 Fireplace Top 20280 20280 20280 20280 Top Spacer e Es Li di Fireplace Surround 24353 24353 24353 24353 Handy Box Assy 108654 01 108654 01 108654 01 108654 01 Gas Conduit Left and Right Assy 21171 21171 21171 21171 Gas Knock Out Cover 14123 14123 14123 14123 Strain Relief 14261 14261 14261 14261 Piezo Ignitor 14253 14253 14253 14253 Gas Line Flex w Shut Off 098867 14 098867 10 098867 14 098867 10 Regulator 110397 01 110397 01 110397 01 110397 01 Two Piece Log Set d on Mii Painted Base Assembly M11084 38 M
70. y push in and turn control knob coun terclockwise to the ON position 10 Wait one minute and switch selector switch to the ON position to light burners Note AUTO is only functional when using GWMT1 or GWMS2 optional accessories AX CAUTION Do not try to ad just heating levels by using the equipment shutoff valve AX WARNING Make sure the selector switch is in the OFF position when you are away from home for long periods of time Heater will come on automati cally with selector switch in the ON position Ignitor Electrode Figure 38 Propane LP Pilot Pilots may vary by model Pilot Burner Ignitor Electrode Figure 39 Natural Pilot Pilots may vary TO TURN OFF GAS by model m TO APPLIANCE IN Shutting Off Heater 1 Turn control knob clockwise NM to the OFF position 2a Set selector switch in the OFF position 2b If Using Optional Hand Held Remote Set selector switch in the OFF position to prevent draining battery Shutting Off Burners Only pilot stays lit You may shut off the burners and keep the pilot lit by doing one of the following 1 Turn control knob clockwise X to the PILOT position 2 Use remote control manual OFF button 3 Set selector switch in the OFF position E MANUAL LIGHTING aoa PROCEDURE 1 Follow steps 1 through 6 under Lighting Instructions page 24 2 Depress control knob and light pilot with match 3 Keepcontrol knob pressed in for 30

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