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UNVENTED (VENT-FREE) FIREPLACE

OWNER’S OPERATION AND INSTALLATION MANUAL

MANUALLY CONTROLLED MODELS

NATURAL GAS

(V)L32(HN, LHN), (V)L36(EN, LEN)

PROPANE/LP GAS

(V)L32(HP, LHP), (V)L36(EP, LEP)

REMOTE CONTROL READY MODELS

NATURAL GAS

(V)L36(ZNR, LZNR), (V)L42(ZNR, LZNR)

PROPANE/LP GAS

(V)L36(ZPR, LZPR), (V)L42(ZPR, LZPR)

For more information, visit www.desatech.com

 WARNING: If the information in this manual is not 

followed exactly, a fire or explosion may result causing 
property damage, personal injury or loss of life.

—  Do  not  store  or  use  gasoline  or  other   flammable 

vapors and liquids in the  vicinity of this or any other 

appliance.

—  WHAT TO DO IF YOU SMELL GAS

•  Do not try to light any appliance.
•  Do not touch any electrical switch; do not use any 

phone in your building.

•  Immediately call your gas supplier from a neighbor’s 

phone. Follow the gas supplier’s instructions.

•  If you cannot reach your gas supplier, call the fire 

department.

—  Installation and service must be performed by a quali

-

fied installer, service agency or the gas supplier.

INSTALLER: Leave this manual with the appliance.
CONSUMER: Retain this manual for future reference.

Summary of Contents for vl42lzpr

Page 1: ...erty damage personal injury or loss of life Do not store or use gasoline or other flammable vapors and liquids in the vicinity of this or any other appliance WHAT TO DO IF YOU SMELL GAS Do not try to light any appliance Do not touch any electrical switch do not use any phone in your building Immediatelycallyourgassupplierfromaneighbor s phone Follow the gas supplier s instructions If you cannot re...

Page 2: ...or use with other gases Aftermarket Completion of sale not for purpose of resale from the manufacturer WARNING This product contains and or generates chemicals known to the state of California to cause cancer or birth defects or other reproduc tive harm IMPORTANT Read this owner s manualcarefullyandcompletely before trying to assemble operate or service this heater Improper use of this heater can ...

Page 3: ... 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 oftrafficandawayfromfurniture 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 comeveryhotwhenrunningfire pla...

Page 4: ...epartment 4 This fireplace shall not be installed in a bedroom or bathroom 5 Do not use this fireplace as a wood burn ing 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 soot ing Do not add lava rock around base Rock and debris could fall into the control area of fireplace 7 T...

Page 5: ...proved 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 vent ing or chimney making installation easy and inexpensive When used without the blower the firebox requires no electricity making it ideal for emergency backup heat Blower Accessory The circulating models will accept a r...

Page 6: ...nued Figure 2 Firebox Dimensions 36 and 42 Models 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 Front View Right Side View Outside Air Kit Location Optional Left Side View with Air Kit ...

Page 7: ...on All spaces in homes fall into one of the three following ventilation classifications 1 Unusually Tight Construction 2 Unconfined Space 3 Confined Space The information on 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 i...

Page 8: ...__ Btu Hr Vent free heater _ _______ Btu Hr Total _ _______ Btu Hr 4 Compare the maximum Btu Hr the space can support with the actual amount of Btu Hr used 40 000 39 000 79 000 _ _______ Btu Hr maximum the space can support _ _______ Btu Hr actual amount used Example 63 360 Btu Hr maximum the space can support 79 000 Btu Hr actual amount of Btu Hr used The space in the above example is a confined ...

Page 9: ...Installation Or Remove Door into Adjoining Room Option 3 Ventilation Grills Into Adjoining Room Option 2 Ventilation Grills Into Adjoining Room Option 1 12 12 Outlet Air Ventilated Attic Outlet Air Inlet Air Inlet Air Ventilated Crawl Space To Crawl Space To Attic CAUTION Log heaters installed in this firebox create warm air currents These cur rentsmoveheattowallsurfaces nexttofirebox Installingfi...

Page 10: ...d be installed on a metal or wood panel extending the full width and depth of the enclosure D Clearances from bottom of firebox to floor is 0 These fireboxes can be installed as freestand ing units against a wall with the approved optional cabinet mantels see Accessories page 41 or as a built in unit The clearances are the same for either installation method INSTALLATION Continued Figure 5 Minimum...

Page 11: ... the firebox in this manner 1 Frame in rough opening Firebox framing 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 fin ished wall surface If installing in a corner use dimensions in Figures 7b 7c and 7d for rough opening 2 Install gas piping to firebox location see Connecting to Gas Suppl...

Page 12: ...llow noncombustible materials to cover any necessary openings like louvered slots WARNING Use only non combustible mortar or adhe siveswhenoverlappingthefront facing with noncombustible facing material Installing OPTIONAL ACCESSORies To install a mantel or blower see instructions provided with accessory Figure 8 Attaching Firebox to Wall Studs Nailing Flanges Nails or Wood Screws INSTALLATION Cont...

Page 13: ...ection to the pressure regulator WARNING A qualified ser vicepersonmustconnectheater to gas supply Follow all local codes CAUTION Never connect propane LP fireplace directly to the propane LP supply This heaterrequiresanexternalregu lator not supplied Install the external regulator between the heater and propane LP supply WARNING Never connect natural gas fireplace to private non utility gas wells...

Page 14: ...esistant to liquid petroleum LP gas External Regulator with Vent Pointing Down Propane LP Supply Tank Figure 12 External Regulator with Vent Pointing Down Tee Cap Pipe Joint Nipple Figure 14 Attaching Flexible Gas Line to Control Valve Remote Ready Models Purchase the optional CSA design certified equipment shutoff valve from your dealer Minimum inlet pressure for purpose of input adjustment Appro...

Page 15: ...ize 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 sys tem 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 su...

Page 16: ...els V L32HN V L32LHN V L32HP and V L32LHP 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 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 toseeifflamescontact...

Page 17: ...te prongs see Figure 20 2 Rest bottom of center log 2 behind metal posts on front burner see Figure 21 Make sure grooves in bottom of log fit over grate Bring log forward against metal posts INSTALLATION Continued Figure 20 Installing Front Logs Front Logs Notch Grate Prong IMPORTANT Make sure logs do not cover any burner ports see Figure 19 3 Place lava rock around base of heater if desired Figur...

Page 18: ...e 24 2 Rest rear log in back corner sections of base assembly as shown in Figure 24 Make sure log is completely vertical and not leaning in toward burner where the flame will touch the log Base Assembly Figure 24 Installing Ember Bed Rear and Middle Logs Ember Bed Rear Log Middle Log INSTALLATION Continued Figure 25 Installing Top Logs Figure 26 Installing Front Logs Middle Log Top Left Log Top Ri...

Page 19: ...ace any part of the control system and any gas control which has been under water LIGHTING INSTRUCTIONS WARNING If fireplace has glass doors never operate this heater with glass doors closed If you op erateheaterwithdoorsclosed heat buildup inside fireplace willcauseglasstoburst Make suretherearenoobstructions across openings of fireplace You must operate this heater with a fireplace screen in pla...

Page 20: ...27 Control Knob and Ignitor Button Location Figure 28 Pilots Operation Continued Manually Controlled Models Ignitor Button Control Knob Thermocouple Ignitor Electrode Pilot Burner 9 To leave pilot lit and shut off burners only turn control knob clockwise to the PI LOTposition Press in and turn control knob clockwise to the PILOT position VARIABLE CONTROL OPERATION The variable control valve can be...

Page 21: ...all a qualified service technician to inspect the appliance and to replace any part of the control system and any gas control which has been under water LIGHTING INSTRUCTIONS WARNING If fireplace has glass doors never operate this heater with glass doors closed If you op erateheaterwithdoorsclosed heat buildup inside fireplace willcauseglasstoburst Make suretherearenoobstructions across openings o...

Page 22: ...ob pressed in for 30 sec onds after lighting pilot After 30 seconds release control knob If control knob does not pop out when released contact a qualified service person or gas supplier for repairs Note If pilot goes out repeat steps 4 through 8 9 Slightly 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 b...

Page 23: ...r Lighting Instructions page 21 2 Press control knob and light pilot with match 3 Keep control knob pressed in for 30 seconds after lighting pilot After 30 seconds release control knob Now follow steps 9 and 11 under Lighting Instructions page 22 Optional Hand Held REMOTE OPERATION Note All remote control accessories must be purchased separately see Accessories page 41 Follow instructions included...

Page 24: ...he average room temperature reaches a range of 82 F 28 C to 92 F 33 C 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 sig nals 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 rec...

Page 25: ...causing brief patches of orange flame If front burner flame pattern is incorrect as shown in Figure 38 turn heater off see To Turn Off Gas toAppli ance page 20 manually controlled models or page 23 remote ready models see Troubleshooting page 27 Figure 37 Correct Front Burner Flame Pattern Figure 38 Incorrect Front Burner Flame Pattern Check pilot flame pattern and burner flame patterns often PILO...

Page 26: ...ng 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 fromcarpeting pethair bedding material etc WARNING Failure to keep the primary air opening s of theburner s cleanmayresultin sooting and property damage Burner Injector Holder and Pilot Air Inlet Hol...

Page 27: ... LP only 6 ODS pilot is clogged 7 Gas regulator setting is not correct REMEDY 1 Reconnect ignitor cable 2 Free ignitor cable if pinched by any metal or tubing Keep ignitor cable dry 3 Tighten nut holding piezo ignitor to base panel of log set Nut is located behind base panel 4 Replace ignitor cable 5 Replace piezo ignitor 6 Replace pilot assembly for remote ready units Re place ignitor electrode f...

Page 28: ...er tube REMEDY 1 Press in control knob fully 2 After ODS pilot lights keep control knob pressed in 30 seconds 3 Wait one minute for safety interlock system to reset Repeat ignition operation 4 Fully open equipment shut off valve 5 A Contact local natural or propane LP gas company B Clean ODS pilot see Cleaning and Maintenance page 26 or replace ODS pi lot assembly 6 Hand tighten until snug then ti...

Page 29: ... will stop after a few hours of operation 1 Turn control knob to LO position and let warm up for a minute 2 Operate burners until air is removed from line Have gas line checked by local natural or propane LP gas company 3 Observe minimum installa tion clearances see pages 10 and 11 4 Clean burners see Clean ing and Maintenance page 26 or replace burner orifice s 1 Turn heater off when us ing furni...

Page 30: ...eak See Warning statement at top of page 2 Control valve or gas control defective 1 Foreign matter between control valve and burner 2 Gas leak See Warning statement at top of page 1 Hand held remote con trol is too close to heater Remote Ready Models Only REMEDY 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 a...

Page 31: ... Inlet Gas Pressure in of water Maximum 14 W C Minimum 11 W C For purpose of input adjustment V L36EP V L36LEP Rating Variable 21 000 33 000 Btu Hr Type Gas Propane LP Ignition Piezo Manifold Pressure 7 9 W C Inlet Gas Pressure in of water Maximum 14 W C Minimum 11 W C For purpose of input adjustment Remote Ready Models V L36ZNR V L36LZNR V L42ZNR V L42LZNR Rating Variable 25 000 36 000 Type Gas N...

Page 32: ...2 32 35 33 36 37 34 48 28 40 40 41 39 38 33 30 29 46 47 1 2 3 6 7 9 4 8 16 15 11 27 24 13 44 43 42 38 45 14 12 10 49 18 19 25 26 23 22 21 20 31 31 5 17 Parts Manual Models L32HN L32LHN L32HP L32LHP VL32HN VL32LHN VL32HP and VL32LHP ...

Page 33: ...onduit Left and Right Assembly 2 26 21171 21171 21171 21171 Gas Knock Out Cover 4 27 14123 14123 14123 14123 Strain Relief 1 28 102445 01 102445 01 102445 01 102445 01 Piezo Ignitor 1 29 14253 14253 14253 14253 Gas Line Flex w Shut Off 1 30 098867 14 098867 10 098867 14 098867 10 Regulator 1 31 110397 01 110397 01 110397 01 110397 01 Two Piece Log Set 1 32 Painted Base Assembly 1 33 M11084 38 M110...

Page 34: ...ual Models L36EN L36LEN L36EP L36LEP VL36EN VL36LEN VL36EP and VL36LEP 27 45 47 37 35 32 36 41 41 29 1 29 2 41 29 30 34 33 31 41 39 46 34 40 44 1 2 3 4 8 11 12 13 14 20 23 24 22 19 21 18 17 15 50 49 10 51 53 52 5 48 9 7 6 16 25 26 43 42 46 28 ...

Page 35: ...2 109824 02 109824 02 Rear Burner Assembly 1 31 Grate Assembly 1 32 Base Pan 1 33 Saddle Bracket 2 34 M11084 38 M11084 38 M11084 38 M11084 38 Screw 4 35 101004 11 101004 11 101004 01 101004 01 Rear Burner Injector 1 36 101004 08 101004 08 101004 02 101004 02 Front Burner Injector 1 37 116009 01 116009 01 116009 01 116004 01 Outlet Burner Tube 1 38 M11084 26 M11084 26 M11084 26 M11084 26 Screw 4 39...

Page 36: ...18 17 15 48 47 10 49 5 46 9 34 29 36 28 30 45 44 7 6 16 26 34 51 42 34 41 43 39 37 33 35 32 34 50 31 38 27 40 41 25 PARTS REMOTE READY Models L36ZNR L36LzNR L36ZPR L36LzPR L42znr l42lznr l42zpr l42lzpr VL36ZNR VL36LzNR VL36ZPR VL36LzPR VL42znr Vl42lznr vl42zpr and vl42lzpr ...

Page 37: ...465 02 112465 02 112465 02 112465 02 Front Ramp Burner 1 32 113242 02 113242 02 113242 03 113242 03 Rear Ramp Burner 1 33 Grate Assembly 1 34 M11084 26 M11084 26 M11084 26 M11084 26 Screw 12 35 099918 02 099918 02 099918 02 099918 02 Pilot Regulator NG Only 1 36 099387 12 099387 12 099387 12 099387 12 Pilot Tube NG 1 099387 14 099387 14 099387 14 099387 14 Pilot Tube NG 1 099387 03 099387 03 09938...

Page 38: ...3 Middle Log 1 4 110314 04 Rear Log 1 5 110314 05 Crossover Log 1 REFRACTORY PART NUMBERS FROM PAGE 35 KEY NO L36EN L36EP L36LEN L36LEP VL36EN VL36EP VL36LEN VL36LEP DESCRIPTION QTY 48 106658 02 106658 02 106658 01 106658 01 Left Refractory 1 49 106659 02 106659 02 106659 01 106659 01 Right Refractory 1 50 106660 02 106660 02 106660 01 106660 01 Rear Refractory 1 51 114999 02 114999 02 114999 01 1...

Page 39: ...114984 04 114984 11 Rear Log 1 5 114984 05 114984 05 Left Control Cover Log 1 6 114984 06 114984 06 Right Control Cover Log 1 7 114984 07 114984 07 Ember Bed 1 1 4 2 3 5 6 7 REFRACTORY PART NUMBERS FROM PAGE 37 KEY NO L36ZNR PR L36LZNR PR VL36ZNR PR VL36LZNR PR L42ZNR PR L42LZNR PR VL42ZNR PR VL42LZNR PR DESCRIPTION QTY 46 106658 02 106658 01 107812 02 107812 01 Left Refractory 1 47 106659 02 1066...

Page 40: ...dealers of this product If they can t supply original replacement part s call DESA Heating LLC at 1 866 672 6040 When calling DESA Heating LLC have ready your name your address model and serial numbers of your heater how heater was malfunctioning purchase date Service Hints When Gas Pressure Is Too Low pilot will not stay lit burners will have delayed ignition heater will not produce specified hea...

Page 41: ...heater to be turned on and off by using a hand held remote control Notice All accessories may not be available for all fireplace models Purchase these accessories from your local dealer If they can not supply these accessories call DESAHeating LLC at 1 866 672 6040 for information You can also write to the address listed on the back page of this manual CLEANING KIT CCK All Models Your vent free ga...

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Page 44: ...pproved by DESA Heating LLC Warranty parts must be obtained through authorized dealers of this prod uct and or DESA Heating LLC who will provide original factory replacement parts Failure to use original factory replacement parts voids this warranty Travel handling transportation diagnostic material labor and incidental costs associated with warranty repairs unless expressly covered by this warran...

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