Desa VM42P User's Manual
Contents
1. 2 EXAMPLE 3 Figure 10 Typical B Vent Configuration B type connectors and the existing system must be code inspected for damage and proper installation It is not recommended that this appliance be com mon vented with an existing gas burning appliance However if it becomes necessary to common vent this appliance the venting system must be sized and configured in accordance with the common venting guides Appendix G of the current National Fuel Gas Code ANSI Z223 1 NFPA 54 and in Canada with CAN CGA B149 Note Before connecting this appliance to an existing vent system or a common venting sys tem consult with your local architect planner or building official WARNING This appliance must be properly connected to a system and must not be connected to a chimney flue servicing a separate solid fuel burning appliance Lowest Listed Discharge Vent Cap SS Opening h 8 Ft Min Listed Gas Vent x 12 N Roof Pitch x 12 Listed Clearance H Min Height From Roof H Min Roof Pitch Ft m Flat to 6 12 1 0 ax0 30 6 12 to 7 12 1 25 0 38 Over 7 12 to 8 12 1 5 0 46 Over 8 12 to 9 12 2 0 0 61 Over 9 12 to 10 12 2 5 0 76 Over 10 12 to 11 12 3 25 0 99 Over 11 12 to 12 12 4 0 1 22 Over 12 12 to 14 12 5 0 1 52 Over 14 12 to 16 12 6 0 1 83 Over 16 12 to 18 12 7 0 2 13 Over 18 12 to 20 12 7 5 2 27 Over 20 12 to 21 12 8 0 2 442. www desatech com 25 ILLUSTRATED PARTS BREAKDOWN MODELS M36 B H M36P B H M42 B H M42P B H VM36 B H VM36P B H VM42 B H AND VM42P B H 26 www desatech com 108795 01N PARTS LIST This list contains replaceable parts used in your heater When ordering parts follow the instructions listed under Replacement Parts on page 22 of this manual Not a field replaceable part KEY M36 B H M42 B H KEY M36 B H M42 B H NO VM36 B H VM42 B H DESCRIPTION QTY NO VM36 B H VM42 B H DESCRIPTION QTY 1 14153 14153 Micro Switch 1 35 901064 03 901064 08 Orifice NG 1 2 sa Insulation Pan 1 901065 13 901065 12 Orifice LP 1 3 Fireplace Top 1 36 108084 01 108084 01 Pilot NG 1 Assembly 108084 03 108084 03 Pilot LP 1 4 Fireplace 1 37 108085 01 108085 01 Pilot Orifice 1 Surround NG 5 106642 01 106642 01 Air Rod 1 108085 02 108085 02 Pilot Orifice 1 Retainer LP 6 106643 01 106643 01 DamperRod 1 gg 44102 41102 Screw 8 2 Retainer 32 X 3 8 7 106651 01 107805 01 Panel Closure 2 39 14512 14512 Gas Control 1 8 s Firebox 1 Valve NG Bottom 14513 14513 Gas Control 1 9 kia Firebox 1 Valve LP Surround 40 107741 01 107741 01 Valve Bracket 1 10 106657 02 107811 02 Air Separator 1 41 14261 14261 Piezo Ignitor 4 11 11408 11408 Bushing 2 42 1112
3. 30 Li AL DAL CT 77 7 frr e TA 2 127 2 277 7 77 BG OS ES KS L HLL gt 2B KEY NO PART NUMBER DESCRIPTION QTY 107999 02 Log Set 901098 02 Rear Log 108723 01 Left Front Log 11 108839 01 Right Front Log 15 3 4 Round 108722 01 Top Left Log 13 1 2 Y Log 108838 01 Inside Top Left Log 15 3 4 Split 108721 01 Inside Top Right Log 16 108720 01 Top Right Log 11 3 4 a c c a a www desatech com 108795 01N 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 AIR KIT AK4 Optional kit helps offset the negative pressure of ten existing in today s tightly constructed homes REMOTE CONTROL KITS RC Standard On Off Millivolt Remote Control Kit HRC100 Hand Held Remote Control Kit GWMT1 Wall Mount Remote Control Kit PROPANE CONVERSION KITS 36 Propane Conversion Kit for 36 B Vent Millivolt Fireplace PCBM 42 Propane Conversion Kit for 42 B Vent Millivolt Fireplace EXTRUDED ALUMINUM BI FOLD GLASS DOORS BD36 36 Black Finish BD36B 36 Brushed Brass Finish BD
4. Figure 11 B Vent Terminations www desatech com 108795 01N VENTING INSTALLATION Continued CHECKING FOR PROPER VENTING After completing and checking the electrical gas and vent connections follow the lighting instructions and allow the main burner to run for approximately 5 minutes Hold a lighted match or cigarette near the top edge of the fireplace opening and play it along the entire length of the opening see Figure 12 Proper venting should tend to draw the flame or smoke into the appliance Improper venting or escaping of spillage of burned gas is indicated when the match flickers or goes out Smoke from a cigarette will also tend to disperse away from the appliance If the appliance is found to be improperly venting shut it off and notify your installer or a qualified service agency to inspect the venting system NOTICE This appliance is equipped with a ventsafety shutoff switch which will shut down the appliance in the case of a venting problem Do not bypass the vent safety switch If the appliance shouldshutdown contacta quali fied installer service agency or your gas supplierto have the vent inspected before operating Check this area along the entire top edge of the fireplace opening Smoke or flame should be drawn into the appliance opening Figure 12 Checking for Spillage INSTALLATION WALL SWITCH INSTALLATION The installation of a wall switch allows you to a
5. The two most common causes of a malfunctioning gas appliance are 1 Loose wiring connections 2 Construction debris clogging the pilot and or gas control valve filter POSSIBLE CAUSE OBSERVED PROBLEM REMEDY Pilot will not light ai No gas supply or shutoff valve is OFF 1 Check to see if you have gas supply 2 Air in gas line 2 Hold regulator control valve in the PILOT position for 2 to 3 minutes to purge air If you smell gas stop and wait for a few minutes before trying to light the fireplace 3 Construction debris clog 3 Remove debris and dirt in ging pilot orifice spect and clean any other possible obstructions 4 Low gas pressure 4 Contact your gas supplier 5 Control valve knob is noton 5 Refer to section on pilot the PILOT position lighting 6 Kinked pilot line 6 Have a qualified technician replace pilot line 7 Bad valve 7 Replace regulator valve see Accessories page 31 8 Vent damper not fully open 8 Open vent damper until fully locked in OPEN position Pilot will not stay lit 1 Loose wiring on thermopile 1 Check wiring connections to regulator valve No mil Refer to wiring diagram livolt current is being sent shown in Wall Switch Instal back to regulator lation page 11 2 If valve knob and wall switch 2 Have a qualified technician are in the ON position proba replace valve ble defective regulator valve 3 Vent damper not fully open 3 Open vent damper until fully lock
6. components B Use of any component part not approved by DESA in combination with this appliance C Installation and or operation in a manner other than instructed in this manual D The burning of anything other than the type of gas approved for use in this gas appliance The installation must conform with local codes or in the absence of local codes with the current National Fuel Gas Code ANSI Z223 1 NFPA 54 or with the current CAN CGA B149 Installation Codes This appliance complies with ANSI Z21 50 2000 and CSA 2 22 2000 as Vented Gas Fireplaces and is listed and tested by the Canadian Standards Association to the above test standards 4 www desatech com 108795 01N INTRODUCTION Continued WARNING Installation of this appliance should be done by a qualified service person well trained in the installation of such appliances You will also needa building permit from your local Building and Safety Commissioner before installing this appliance otherwise your insurance co may notcoverthis appliance NOTICE This appliance is not intended to be usedas a primary source of heat CAUTION Do not connect appliance before pressure test ing gas piping Damage to gas valve may result and an unsafe condition may be caused The appliance and it s individual shutoff valve must be disconnected from the gas supply piping system during any pressure testing of that system at test pressures in
7. 3 A Check remote shut off valves from fireplace Usually there is a valve near the fire place and sometimes there is a valve near the main There can be more than one 1 valve be tween the fireplace and main B Low pressure can be caused by a variety of situations such as bent line or gas supplier 4 If using propane LP gas no 4 Check propane LP supply propane LP gas in tank and contact local propane LP supplier Fireplace produces a clicking 1 Metalexpanding while heating 1 This is common with most ticking noise just after burner is or contracting while cooling fireplaces If noise is exces lit or shut off sive contact qualified service person 24 www desatech com 108795 01N TROUBLESHOOTING Continued your building WARNING If you smell gas Shut off gas supply e Do not try to light any appliance Do not touch any electrical switch do not use any phone in Immediately call your gas supplier from a neighbor s phone Follow the gas supplier s instructions If you cannot reach your gas supplier call the fire department IMPORTANT Operating fireplace 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 OBSERVED PROBLEM POSSIBLE CAUSE REMEDY Fireplace produces unwanted 1 odors Fireplace burning v
8. 7 DIMENSIONS Collar 7 E Cc G A Alternate Gas Supply Inlet t x Glass Door 1 5 Optional E Optional ic VO L X Outside Air Kit Location E Optional NO P A B D E F G H 29 5 8 41 12 21 1 4 22 1 4 24 w o Brick 32 5 8 34 w o Brick 15 3 4 16 3 4 w o Brick 36 5 8 48 14 23 29 1 4 39 1 2 17 3 4 31 w o Brick 41 4 w o Brick 18 3 4 w o Brick P 8 5 8 xE lt CAODO Figure 2 Appliance Dimensions www desatech com 108795 01N PRE INSTALLATION PREPARATION CLEARANCES Minimum clearances to combustibles are e Back and Sides of Outer Surround 0 min Drywall to Sides of Front Face Nailing Flanges 0 min e BY Vent Surfaces ewa ate sadin 1 min e Ceiling to Opening 42 min s ea es bed 0 min e Perpendicular Wall See Figure 6 CAUTION Do not block required air spaces with insu lation or any other material Do not obstruct effective opening of appliance with any type of facing material 2 x 4 Stud Left Side Surround b Front Face Drywall Figure 3 Minimum Clearances Top View 1 25mm Min 214 e Lh pr Clearance to B Vent s Outer Pipe Ceiling 42 1067mm Min Clearance from Opening to
9. Maintain 2 51mm Min Clearance to the Transition mmm Ceiling Pipe as Measured at the 0 Clearance k Outer Vent Collar 1 gt Required Air Spaces are i Indicated with Y Do Not Pack with X J Insulation or Any Do NOT BLOCK Other Material OPENINGS ALA 0 Clearance to Combustible or Noncombustible Flooring Y A Figure 4 Minimum Clearances Front View MANTEL CLEARANCES AND WALL DETAILS A combustible mantle shelf maybe installed a maximum 12 229 mm from the wall Figures 5 and 6 show the minimum allowable distances from various combustible mantle components in relation to the fireplace opening 30 12 Combustible 229mm Materials Header 6 152mm A ELI A Zs A A Spacer a Y PE Ph 3 76mm 112 ol 38mm Max m M36 B H M42 B H M36P B H M42P B H VM36 B H VM42 B H VM36P B H VM42P B H 14 356 mm 15 381 mm B 8 203 9 229 Figure 5 Mantel Clearances Side View Cross Section a Combustible TOP VIEW 4 A Material May Be Used py EA i d i 4 1 2 38 mm ZONE Max AZA 33 Max 6 152 mm T a
10. black front face Brick tile or other non combustible materials may be applied to the face provided that any gap is between the material used and the face is caulked with a noncombustible caulking M36 B H M42 B H M36P B H M42P B H VM36 B H VM42 B H VM36P B H VM42P B H A 40 3 s 1020 mm 44 3 8 1121 mm B 21 543 mm 23 16 587 mm C 41 1 4 1048 mm 48 1 4 1226 mm Figure 7 Rough Opening for Installing in Wall These Dimensions Allow for a 3 4 Clearance at Sides and Back of Fireplace However 0 Clearance is Permitted 3 4 Clearance Nailing Flanges Not Required at M36 B H M42 B H M36P B H M42P B H VM36 B H VM42 B H VM36P B H VM42P B H A 24 1 2 27 9 16 622 3 mm 700 1 mm B 73 Js 83 Js 1876 4 mm 2130 4 mm C 52 3 16 59 5 16 1326 mm 1506 6 mm D 17 1 4 19 1 2 438 2 mm 495 3 mm Figure 8 Corner Installation Guidelines www desatech com 108795 01N PRE INSTALLATION PREPARATION Continued INSTALLING TRANSITION PIPE AND STARTER COLLAR The transition pipe and starter collar shown in Figure 9 are supplied with the fireplace unattached and ready for installation Remove the starter collar and set aside Slide the transition pipe over the vent collar and attach with a minimum of three screws Repl
11. excess of 1 2 psig 3 5 kPa The appliance must be isolated from the gas sup ply piping system by closing its individual manual shutoff valve during any pressure testing of the gas supply piping system at test pressures equal to or less than 1 2 psig 3 5 kPa For the purpose of input adjustment two pressure taps for IN and OUT pressures are provided on the gas control valve for test gauge connections to the appliance SELECTING LOCATION To determine the safest and most efficient location for your appliance you must take into consider ation the following guidelines 1 Thelocation must allow for proper clearances see Clearances page 7 2 Consider a location where heat output would not be affected by drafts air conditioning ducts windows or doors 3 A location that avoids the cutting of joists or roof rafters will make installation easier Figure 1 shows a plan view of a few common locations Flush installations are recommended where living space is limited or at a premium and since the space required to enclose the appliance would be located beyond an outside wall this would also reduce the cutting of joists roof rafters and such Check local codes for any restrictions Projected installations can extend any distance into the room A projection may be ideal for a new addition on an existing finished wall Corner installations make use of space that may not normally be used and provides a wider and more effi
12. fireplace inspected annually by a quali Propane LP gas and natural gas are both odorless fied service person An odor making agent is added to each of these 9 You must keep control compartments burn gases The odor helps you detect a gas leak How ers and circulating air passages clean More ever the odor added to these gases can fade Gas frequent cleaning may be needed due to ex may be present even though no odor exists cessive lint and dust from carpeting bedding Make certain you read and understand all warnings material etc Turn off the gas valve and pilot Keep this manual for reference It is your guide to light before cleaning fireplace safe and proper operation of this fireplace 10 Have venting system inspected annually by a qualified service person If needed have vent A WARNING Any change to ing system cleaned or repaired See Cleaning this fireplace or its controls can and Maintenance page 21 be dangerous 108795 01N www desatech com 3 SAFETY INFORMATION Continued 11 Keep the area around your fireplace clear of combustible materials gasoline and other flammable vapor and liquids Do not run fire place where these are used or stored Do not place items such as clothing or decorations on or around fireplace 12 Do not use this fireplace to cook food or burn paper or other objects 13 Do not use any solid fuels wood coal paper cardboard etc in this fireplace Use only the gas type indicated on firep
13. www desatech com 108795 01N SAFETY INFORMATION This appliance is only for use with the type of gas indicated on the rating plate This ap A WARNING This product pliance is not convertible for use with other contains and or generates gases unless a certified kit is used chemicals known to the State 2 For propane LP fireplace do not place propane a LP supply tank s inside any structure Locate of California to cause cancer or propane LP supply tank s outdoors To prevent birth defects or other reproduc performance problems do not use propane LP tive harm fuel tank of less than 100 lbs capacity 3 Ifyou smell gas IMPORTANT Read this owner s shut off gas supply manualcarefully and completely do not try to light any appliance before trying to assemble op e do not touch any electrical switch do not erate or service this fireplace use any phone in your building Improper use of this fireplace iminediately call your gas supplier from a neighbor s phone Follow the gas supplier s cancause serious injury or death from burns explosions e if you cannot reach you gas supplier call the electrical shock and carbon fire department monoxide poisoning 4 Never install the fireplace inarecreational vehicle A DANGER Carbon monoxide where curtains furniture clothing or other flammable objects are less than 42 from poisoning may lead to death the front top or side
14. 1 After lighting let pilot flame burn for about one minute Turn control knob to ON position Slide the selector switch to the REMOTE position 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 2 Press the control button on the hand held remote to turn the burner on Press the control button again to turn burner off see Figure 41 3 To Lock press both buttons on remote control until light stops flashing Remote 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 4 To Unlock press both buttons together on remote control until light stops flashing The remote is now unlocked Indicator Light Control Button Figure 41 On Off Hand Held Remote Control Unit HRC100 INSPECTING BURNERS Check pilot flame pattern and burner flame pat terns often PILOT ASSEMBLY The pilot assembly is factory preset for the proper flame height Alterations may have occurred dur ing shipping and handling The pilot is located on the back right hand side of the burner The height of the thermopile must be 3 8 to 1 2 above the pilot flame The flame from the pilot bu
15. 106661 02 107818 02 Bottom Rear Refractory Std Brick M36 M42 M36B M42B 108167 02 108172 02 Bottom Rear Refractory Herringbone M36H M42H 106661 01 107818 01 Bottom Rear Refractory Std Brick VM36 VM42 VM36B VM42B 108167 01 108172 01 Bottom Rear Refractory Herringbone VM36H VM42H 16 106662 02 107820 02 Bottom Front Refractory Std Brick M36 M42 1 M36B M42B 108168 02 108173 02 Bottom Front Refractory Herringbone M36H M42H 1 106662 01 107820 01 Bottom Front Refractory Std Brick VM36 VM42 1 VM36B VM42B 108168 01 108173 01 Bottom Front Refractory Herringbone VM36H VM42H 1 ah a dc eo dd E 28 www desatech com 108795 01N ILLUSTRATED PARTS BREAKDOWN LOGSETS FOR MODELS M36 B H M36P B H VM36 B H AND VM36P B H 177 2 pe 172772 LAJAN a di 7 ee AZ 22 Ze LA 7 LIL 7 Ez 77 N A 7 Mit A C EZ AY Z2 xj KEY PART NO NUMBER DESCRIPTION QTY 107999 01 Log Set 108724 01 Right Front 9 Split Log 901098 01 Rear Log 108720 01 Top Right Log 11 3 4 108721 01 Top Right Log 16 108722 01 Top Left Log 13 2 Y Log 108723 01 Top Left Log 11 OOA a a a a a 108795 01N www desatech com ILLUSTRATED PARTS BREAKDOWN LOGSETS FOR MODELS M42 B H M42P B H VM42 B H AND VM42P B H
16. 36P 36 Platinum Finish BD42 42 Black Finish BD42B 42 Brushed Brass Finish BD42P 42 Platinum Finish BRICK LINER For M36 B H M36P B H M42 B H and M42P B H BL36 36 Refractory Standard Brick Liner Kit BL42 42 Refractory Standard Brick Liner Kit BL36H 36 Refractory Herringbone Brick Liner Kit BL42H 42 Refractory Herringbone Brick Liner Kit For VM36 B H VM36P B H VM42 B H and VM42P B H BL36S 36 Refractory Standard Brick Liner Kit BL42S 42 Refractory Standard Brick Liner Kit BL36HS 36 Refractory Herringbone Brick Liner Kit BL42HS 42 Refractory Herringbone Brick Liner Kit BLOWER KIT BK Squirrel Cage Blower With Speed Control BK3E Triple Fan Blower System PERIMETER TRIM 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 LOUVER TRIM Rolled Louvers Only LT36B 36 Louver Trim Kit Brushed Brass LT36P 36 Louver Trim Kit Platinum LT36PB 36 Louver Trim Kit for VM36 B H Polished Brass LT42B 42 Louver Trim Kit Brushed Brass LT42P 42 Louver Trim Kit Platinum LT42PB 42 Louver Trim Kit for VM42 B H Polished Brass FACE LOUVER PANEL KITS SP36 SP42 Smooth Faced Panel Kit B
17. 88 02 111288 02 Manual Valve 1 12 See page 28 Left Refractory 1 w Flex Hose 13 See page 28 Right Refractory 1 43 108769 01 108769 02 Extension 2 14 See page 28 Rear Refractory 1 Deflector 15 See page 28 Bottom Rear 4 44 108005 01 108005 01 Wire Harness 1 Refractory 45 108005 02 108005 02 Wire Harness 1 16 page 28 Bottom Front 1 46 11418 11418 Push On Nut 2 Refractory 47 12105 107840 01 Screen 2 17 ss Firebox 2 48 14123 14123 Strain Relief 1 Support Leg 49 14574 106543 01 Limit Switch 1 18 106687 01 106887 02 DamperCan 1 50 COR 4 Collar Insulation bs 106691201 Fi 51 20023 20488 StarterCollar 1 52 20027 20027 Brick Liner 2 21 106699 01 106699 01 LE 1 53 20042 20042 AirKitCover 1 22 106703 01 106703 01 AirKitDoor 1 54 20088 120088 DoorStop Assembly 55 20089 20089 Pivot Clip 2 23 Firebox Face 1 56 20090 20090 Spring Clip 2 24 106948 02 107823 02 Smoke 1 57 20280 20280 Top Spacer 4 Deflector 58 Gas Knockout 4 25 Fireplace Top 1 Cover Insulation 59 a e Gas Conduit 1 26 107796 01 107796 02 Grate 1 60 Gas Conduit 1 Assembly 61 22912 22924 Draft Diverter 1 27 107742 01 107742 02 Burner Pan 1 82 24353 24353 Box Assembly 4 28 107795 01 107831 01 Burner Tube 1 63 14165 11165 Screw 10x 2 29 107748 01 107748 01 Burner 1 5 8 Mod Tr Brac
18. ARNING Turn off gas and electrical power before servicing appliance WARNING Failure to keep the primary air opening s of the burner s clean may resultin sooting and property damage PILOT AND BURNER Remove logs and ember material before cleaning burner and replace when cleaning is complete Burner and controls should be cleaned with compressed air to remove dust dirt or lint Use a vacuum cleaner or small soft bristled brush to remove excess dust dirt or lint LOGS If you remove logs for cleaning refer to log placement information on page 12 to properly replace logs Use a vacuum cleaner to remove any carbon buildup on logs Replace log s if broken See Replacement Parts page 22 Replace ember material periodically as needed See Replacement Parts page 22 21 WIRING DIAGRAM PILOT BURNER IGNITOR THERMOPILE PILOT GAS LINE REPLACE FACTORY WIRING WITH 105 C EQUIVALENT OR HIGHER RATING EXTERNAL WIRING USE ONLY CLASS 2 THERMOSTAT WIRE 18 GA RED WHITE DO NOT CONNECT TO 120V N O SW N C SW o e re s MANUAL m SWITCH A RA VENT SAFETY SUE SHUTOFF SWITCH SERVICE HINTS When Gas Pressure Is Too Low pilot will not stay lit burner will have delayed ignition fireplace will not produce specified heat propane LP gas supply may be low if using propane LP gas If using propane LP gas you may feel your g
19. DESA B VENT DECORATIVE GAS FIREPLACE OWNER S OPERATION AND INSTALLATION MANUAL MODELS M36 B H M42 B H VM36 B H AND VM42 B H NATURAL GAS MODELS M36P B H M42P B H VM36P B H AND VM42P B H PROPANE LP GAS WARNING If the information in these instructions is not followed exactly a fire or explosion may result causing property damage personal injury or death FOR YOUR SAFETY Do not store or use gasoline or any other flammable vapors or 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 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 For assistance or addi tional information consult a qualified installer service agency or the gas supplier NOT FOR USE WITH SOLID FUEL CHECK LOCAL CODES PRIOR TO INSTALLATION SAVE THIS BOOK This book is valuable In addition
20. P Models 108795 01N www desatech com 15 INSTALLATION Continued LOG PLACEMENT FOR M42 M42P VM42 AND VM42P MODELS Place large back log log 1 onto grate making sure notches rest over grate see Figure 29 Insert lower end of log 2A between the first two grate fingers and position the upper end into the notch on the front of log 1 See Figure 29 Place log 2B on the front right side of grate as shown in Figure 29 Place log 3 into notch on top left of log 1 rest ing the lower end on the left two grate fingers see Figure 30 Place the upper end of log 4 into the notch on log 1 as shown in Figure 30 Rest the lower end of log 4 on the middle grate finger as shown in Figure 31 Notch Figure 30 Installing Logs 3 and 4 5 Place the upper end of log 5 into the notch on the top inner right of log see Figure 31 Rest the lower end of log 5 on the middle grate finger as shown in Figure 32 6 Place log 6 into the notch on the top right of log 1 see Figure 31 Rest the lower end of log 6 on top of log 2B see Figure 32 As an option to enhance the look of the hearth you may place the lava rock provided around the front and sides of the burner pan NOTICE Do not put lava rock inside the burner pan or around the air mixer fitting Placing lava rock inside the burner pan or blocking the openings of the propane LP air mixer could cause performance problems Figure 32 Logs Install
21. ace the starter collar over the transition pipe and attach using four screws located on the leg stands five used on the model M42 To install B vent piping slide the first piece of B vent over the transition pipe and attach with either a mini mum of two screws or other means approved by the vent manufacturer B Vent Piping Starter Collar Transition Pipe Vent Collar Figure 9 Installing Transition Pipe and Starter Collar VENTING INSTALLATION A B type venting system must be connected to the appliance for venting to the outside of the building The following section is provided as a guide to a standard B type vent installation Standing codes requirements concerning B type vent installations may vary within your state province or local codes jurisdiction Therefore it is recommended that you check with your local building codes for specific requirements or in absence of local codes follow Section 7 0 of the current National Fuel Gas Code ANSI Z223 1 NFPA 54 and in Canada with CAN CGA B149 for Category I systems using double wall B 1 vent pipe This gas appliance must be vented to the outdoors only and may not be terminated into an attic space or into a chimney flue servicing a solid fuel burn ing appliance This appliance may be vented through a manufac tured chimney system or a masonry chimney using a B vent adapter or a chimney liner system if all are listed inspected and approved by local codes an
22. apors from paint hair spray glues etc See IMPORTANT state ment above For propane LP gas low fuel supply Gas leak See Warning statement at top of page 1 Ventilate room Stop using odor causing products while fireplace is running 2 Contact local propane LP sup plier 3 Locate and correct all leaks see Gas Line Hook Up page 13 Gasodoreven whencontrolknob 1 is in OFF position Gas leak See Warning statement at top of page Control valve defective Locate and correct all leaks see Gas Line Hook Up page 13 2 Replace control valve Gas odor during combustion 1 Foreign matter between con trol valve and burner Gas leak See Warning statement at top of page Take apart gas tubing and remove foreign matter 2 Locate and correct all leaks see Gas Line Hook Up page 13 Dark residue on logs or inside 1 Air holes at burner inlet of fireplace Improper log placement blocked Burner flame holes blocked Improper venting or ex cessive blockage Excessive amounts of embers and pan material Properly locate logs 2 Clean out air holes at burner inlets Periodically repeat as needed 3 Remove blockage or replace burner 4 Have the vent system inspect ed including the termination cap Remove any restrictions or obstruction 5 Clear excess embers until a minimum gap of 1 2 remains under the grate 108795 01N
23. as pressure is too low If so contact your local pro pane LP 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 WALL SWITCH SUPPLIED 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 for referral information When calling DESA have ready your name your address model and serial numbers of your fireplace how fireplace was malfunctioning 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 original replacement part s call DESA at 1 866 672 6040 for referral infor mation When calling DESA have ready model number of your fireplace the replacement part number 22 www desatech com 108795 01N TROUBLESHOOTING Note Before troubleshooting the system make sure the gas shutoff valve is ON
24. cient range for radiant heat transference Internal wall installations provide a discreet option for room separation and can also be ideal as an addition to an existing wall CORNER INTERNAL WALL INSTALLATION INSTALLATION FLUSH FULL INSTALLATION PROJECTION INSTALLATION Figure 1 Possible Locations for Installing Appliance 108795 01N www desatech com 5 PRODUCT SPECIFICATIONS GAS RATING NATURAL M36 B H VM36 B H M42 B H VM42 B H Max Input Rating 40 000 Btu Hr 45 000 Btu Hr Manifold Pressure 3 5 in WC 87 kPa 3 5 in WC 87 kPa Minimum Supply Pressure 4 5 in WC 1 12 kPa 4 5 in WC 1 12 kPa Maximum Supply Pressure 10 5 in WC 2 66 kPa 10 5 in WC 2 66 kPa Orifice Size 30 29 GAS RATING PROPANE LP M36P B H VM36P B H M42P B H VM42P B H Max Input Rating 40 000 Btu Hr 45 000 Btu Hr Manifold Pressure 10 in WC 2 49 kPa 10 in WC 2 49 kPa Minimum Supply Pressure 11 in WC 2 74 kPa 11 in WC 2 74 kPa Maximum Supply Pressure 13 in WC 3 23 kPa 13 in WC 3 23 kPa Orifice Size 52 50 A F For Use With 6 Type B 1 S Vent Pipe Only ve PA HEARTH AREA H Stand Off
25. ctivate the gas control valve without the normal household electricity since the valve operates on millivolt current supplied by the heat generated by the thermopile To install the wall switch 1 Remove the front refractory access panel by lifting up and angling out of the firebox open ing see Figure 13 2 Use wire and connectors provided Attach red wire to terminal marked TH TP on control valve Attach white wire to blade connector on open end of safety circuit wiring see Wiring Diagram page 22 Note 1f any of the original wire from the unit control must be replaced use the same type or a higher rated wire 25 ft maximum length WARNING Do not wire re mote wall switch to main power supply Standard 120v house hold current 3 Locate wall switch in a convenient location 4 After wire connections are complete replace refractory access panel Figure 13 Removing Front Refractory Access Panel 108795 01N www desatech com 11 INSTALLATION Continued OPTIONAL WIRELESS HAND HELD REMOTE CONTROL INSTALLATION Note If using optional wireless hand held remote control the wall switch is no longer operational Installing Receiver 1 Remove the front refractory access panel by lifting up and angling out of the firebox opening see Figure 13 page 11 to expose controls 2 Disconnect wall switch wires from TH and TH TP terminals on c
26. d or building authorities The examples shown in Figure 10 page 10 are typical of most B vent installations and codes practices Example 1 Shows the minimum allowable sys tem height and lateral offset for a 60 degree or greater inclination Code specifies that offsets at 60 degrees or greater are considered horizontal and must follow the 75 percent rule for lateral to total vertical system height Codes also allows only one offset in the total system when at 60 degrees or greater The total vertical height in this example represents the minimum height of 8 feet and therefore the allowable lateral is 6 feet when the 75 percent rule applies If the lateral length must exceed 75 then the system must be sized in accordance with the Category I venting tables Example 2 Shows a multiple offset each at 45 degrees of inclination Multiple offsets are permit ted if they do not exceed 45 degrees of inclination The total lengths ofthe two offsets are not required to meet the 7596 percent allowable rule Example 3 Shows a single offset at 45 degrees of inclination and therefore the lateral length at 10 feet of offset does not have to meet the 7596 percent rule In each case the offsets must be supported and firestops must be positioned wherever the vent must pass through a sub floor ceiling joist or an attic overhang The vent pipe must terminate vertically into a listed type vent cap and extend a sufficient height through an approved ro
27. ed for M42 M42P VM42 and VM42P Models www desatech com 108795 01N INSTALLATION Continued COMBUSTION AIR KIT MODEL AK4 OPTIONAL The outside air kit may be installed on the left side of the fireplace only The vent can be installed through any outside wall a minimum of three feet below fireplace termination cap The handle to operate the damper door for the outside air inlet will be located inside the left screen pocket of the firebox see Figure 33 Pull the handle to open or push to close CAUTION Airinlet ducts are not to terminate in attic space Screen Pocket Air Kit Handle Figure 33 Air Kit Handle Location APPLIANCE ENCLOSURE Before finishing the enclosure around the appli ance inspect all joints around the outer surround Any gaps between the nailing flanges and the framing should be sealed with noncombustible insulation or caulking If the appliance is mounted on a raised platform it must be a continuous surface and not on blocks without a solid surface This will prevent the entry of cold air by means of conduction through the total bottom of the appliance see Figure 34 Side Side Framing Framing Caulk Here Pack Insulation Figure 34 Sealing Between Appliance and Framing INSTALLING OPTIONAL GLASS DOOR ACCESSORY A CAUTION Use only glass doors certified for use with this appliance Note Glass door may be heavy for some individu als If
28. ed in OPEN position No gas to burner although wall 1 Wall switch wiresdefectiveor 1 Check electrical connections switch and valve are set to the too long ON position 2 Thermopile not generating 2 See Pilot will not stay lit sufficient voltage above Frequent pilot outage 1 Pilot flame may be too 1 Clean and adjust pilot flame low causing safety pilot to for maximum flame impinge drop out ment on thermopile 2 Improper venting orexcessive 2 Have the vent system inspect blockage ed including the termination cap Remove any restriction or obstruction 108795 01N www desatech com 23 TROUBLESHOOTING Continued OBSERVED PROBLEM POSSIBLE CAUSE REMEDY Pilot goes out when wall switch 1 Millivolt output on thermo 1 Replace thermopile is ON pile too high Spark ignitor will not light pilot 1 Defective ignitor no spark at 1 Check for spark at the elec after repeated triggering of red electrode trode and pilot if no spark button and electrode wire is properly connected replace ignitor 2 Defective pilot or misaligned 2 Using a match light pilot If electrode at pilot spark at pilot lights turn off pilot and electrode trigger the red button again If pilot lights an improper gas air mixture caused the improper lighting and a longer purge period is recommended Tf pilot will not light check gap at electrode and pilot Gap should be 1 8 to have a strong spark If okay replace pilot 3 No gas or low gas pressure
29. ed service tech nician or gas supplier Force or attempted repair may result in a fire or explosion Do not use this appliance if any part has been under water Immediately call a qualified service technician to inspect the appliance and to replace any part of the control system and any gas control which has been under water LIGHTING INSTRUCTIONS Aw ek YN 10 11 12 13 STOP Read the safety information column 1 Turn wall switch to the OFF position Turn off all electric power to the appliance Fully open glass doors if installed Remove front refractory brick access panel Turn gas control knob clockwise ON to the OFF position see Figure 39 Wait five 5 minutes to clear out any gas Then smell for gas including near the floor If you smell gas STOP Follow B in the safety information above If you don t smell gas go to the next step Turn control knob counterclockwise K to the PILOT position Push in the knob all the way and hold in Immediately light the pilot manually Con tinue to hold the control knob in for about 1 minute after the pilot is lit Release knob andit will pop back up Pilot should remain lit If it goes out repeat steps 5 through 9 If knob does not pop up when released stop and immediately call your service technician or gas supplier If the pilot will not stay lit after sev eral tries turn the gas control knob to OFF and call your service tec
30. eed icular B j Wall M36 B H M42 B H M36P B H M42P B H VM36 B H VM42 B H VM36P B H VM42P B H A 9 229 mm 6 152 12 305 mm 9 229 Figure 6 Side Clearances Top View Cross Section 108795 01N www desatech com T PRE INSTALLATION PREPARATION Continued FRAMING li Frame appliance enclosure as illustrated in Figures 7 and 8 Note If a wall covering is used to line the enclosure then all measurements must be from the surface of the covering Place the appliance into the framing and secure it Note If appliance is to be raised above floor level a platform must be built to support the appliance Install the supply line to the appliance using a 1 2 NPT black iron gas line terminating 2 5 16 above the bottom of the appliance The gas line must be installed through the lower left side ac cess point or alternate access hole in the bottom of the appliance see Figure 19 page 13 Repack insulation around the gas line to cover any remaining openings in the conduit sleeve Prepare the incoming gas line with teflon tape or pipe joint compound and hook up incoming gas line to the flexible gas line Note If 1 2 NPT black iron pipe does not mate with fitting at the end of flexible gas line remove fitting and replace with a 37 degree flare 3 4 12 1 2 NPT female fitting A WARNING When finishing appliance do not overlap com bustible material onto the
31. hnician or gas supplier Turn gas control knob counterclockwise to ON Knob can be turned to ON only if the control knob is popped out Replace front refractory brick access panel Fully close glass doors if installed Turn on all electric power to the appliance Pilot Adjustment Gas Control Screw Knob fa OH NOTICE Duringinitial operation of new heater burning logs will 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 108795 01N Dy Position Indicator Figure 39 Control Knob in the PILOT position www desatech com 19 OPERATING FIREPLACE Continued TO TURN OFF GAS EN TO APPLIANCE E 1 Turn off the wall switch 2 Turn off all electric power to the appliance if service is to be performed 3 Fully open glass doors if installed 4 Remove front hearth brick and control access panel 5 Turn gas control knob clockwise ON to OFF Do not force 6 Replace front refractory brick access panel 7 Fully close glass doors if installed Pilot Burner Thermopile Ignitor Figure 40 Pilot OPTIONAL HAND HELD mu REMOTE OPERATION w Note The receiver and hand held remote control kit must be purchased separately see Accessories page 31 Follow installation in structions on page 10 of this manual
32. iding Door Out of the Upper Track Pivot Plate Figure 37 Removing Glass Doors OPENING VENT DAMPER Vent damper must be locked in the full open posi tion before operating the fireplace If vent damper is not open fireplace will not light NENT DAMPER MUST BE LOCKED IN THE FULL OPEN POSITION TO OPERATE THE APPLIANCE OPEN CLOSE Figure 38 Opening Vent Damper 18 www desatech com 108795 01N OPERATING FIREPLACE FOR YOUR SAFETY READ BEFORE LIGHTING WARNING If you do not fol low these instructions exactly a fire or explosion may result causing property damage per sonal injury or loss of life A This appliance has a pilot which must be lighted by hand When lighting the pilot follow these instructions exactly 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 Donottry to light any appliance Donottouch 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 e If you cannot reach your gas supplier call the fire department Use only your hand to push in or turn the gas control knob Never use tools If the knob will not push in or turn by hand don t try to repair it call a qualifi
33. ket Blk Ox 30 107985 01 107985 02 Pilot Shield 1 PARTS AVAILABLE NOT SHOWN 31 901681 01 901681 01 Burner Clamp 1 901155 01 901155 01 Vermiculite 1 32 11209 11209 Nut 10 24 1 Bag 33 111147 11147 Screw 10 1 901156 01 901156 01 Pan Material 1 24x 1 2 901157 01 901157 01 Lava Rock 1 34 901066 01 901066 01 Brass Air 1 22180 22180 Wall Switch 1 Mixer NG Kit 901066 02 901066 02 Brass Air 1 Mixer LP 108795 01N www desatech com 27 ILLUSTRATED PARTS BREAKDOWN BRICK LINERS FOR MODELS M36 B H M36P B H VM36 B H AND VM36P B H 167 KEY M36 B H M42 B H NO VM36 B H VM42 B H DESCRIPTION QTY 12 106658 02 107812 02 Left Refractory Std Brick M36B M42B 108164 02 108169 02 Left Refractory Herringbone M36H M42H 106658 01 107812 01 Left Refractory Std Brick VM36B VM42B 108164 01 108169 01 Left Refractory Herringbone VM36H VM42H 13 106659 02 107814 02 Right Refractory Std Brick M36B M42B 108165 02 108170 02 Right Refractory Herringbone M36H M42H 106659 01 107814 01 Right Refractory Std Brick VM36B VM42B 108165 01 108170 01 Right Refractory Herringbone VM36H VM42H 14 106660 02 107816 02 Rear Refractory Std Brick M36B M42B 108166 02 108171 02 Rear Refractory Herringbone M36H M42H 106660 01 107816 01 Rear Refractory Std Brick VM36B VM42B 108166 01 108171 01 Rear Refractory Herringbone VM36H VM42H 15
34. lace nameplate 14 This appliance when installed must be electri cally grounded in accordance with local codes or in the absence of local codes with the National Electrical Code ANSI NFPA 70 or the Canadian Electrical Code CSA C22 1 15 Do not obstruct the flow of combustion and ventilation air in any way Provide adequate clearances around air openings into the combus tion chamber along with adequate accessibility clearance for servicing and proper operation 16 Do not install fireplace directly on carpeting vinyl tile or any combustible material other than wood The fireplace must set on a metal or wood panel extending the full width and depth of the fireplace 17 Do not use fireplace if any part has been ex posed to or under water Immediately call a qualified service person to arrange for replace ment of the unit 18 Do not operate fireplace if any log is broken 19 Do not use a blower insert heat exchanger insert or other accessory not approved for use with this fireplace 20 Provide adequate clearances around air openings UNPACKING The following items are packed inside the firebox Remove before positioning firebox into framing Transition Collar For vent connection Ceramic Log Pack Shrink wrapped on card board Three 3 plastic bags containing lava rock pan and ember materials Rear Log Remove the two plastic quick ties from around the burner and grate Grate Stand Lift off of bur
35. lack SL36 SL42 Stamped Louver Panel Kit Black RL36 RL42 Rolled Louver Kit Black FP36 FP42 Filigree Panel Kit Black FP36B FP42B Filigree Panel Kit Brushed Brass FP36P FP42P Filigree Panel Kit Platinum FP36PB FP42PB Filigree Panel Kit Polished Brass FIRE CRACKLE CF6 A Creates the sound of a real burning fire 108795 01N www desatech com 31 WARRANTY INFORMATION KEEP THIS WARRANTY Model Serial No Date Purchased Always specify model and serial numbers when communicating with the factory We reserve the right to amend these specifications at any time without notice The only warranty applicable is our standard written warranty We make no other warranty expressed or implied LIMITED WARRANTY VENT FREE FIREBOX 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 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 a
36. mber 0 5 Material Figure 24 Pan and Ember Material Clearances LOG PLACEMENT FOR M36 M36P VM36 AND VM36P MODELS 1 Place small front right log log 1 on right front of grate as shown in Figure 25 2 Placelarge back log log 2 onto grate mak ing sure notches rest over grate as shown in Figure 25 3 Place log 3 into notch on log 2 resting the front end on top of log 1 see Figure 26 4 Place the upper end of log 4 into the notch on log 2 as shown in Figure 26 Rest the lower end of log 4 onto the middle grate finger as shown in Figure 27 5 Place the upper end of log 5 into notch on the left oflog 2 see Figure 27 Rest the lower end of log 5 on the grate as shown in Figure 28 6 Insert the lower end of log 6 between the first two grate fingers as shown in Figure 28 and position the upper end of log 6 into the notched area on the front of log 2 as shown in Figure 28 As an option to enhance the look of the hearth you may place the lava rock provided around the front and sides of the burner Figure 25 Installing Logs 1 and 2 NOTICE Do not put lava rock inside the burner pan or around the air mixer fitting Placing lava rock inside the burner pan or blocking the openings of the pro pane LP air mixer could cause performance problems Log 4 gt z Log 3 Notches Figure 28 Logs Installed for M36 M36P VM36 and VM36
37. ment trap must be included outside the appliance between the gas line and the gas shutoff valve It must extend down three 3 inches beyond the center of the pipe Prepare incoming black iron gas line with teflon tape or pipe joint compound Check with local building codes Shutoff Valve Typical Exterior Wall Gas Shutoff Installation Figure 18 Manual Shutoff Valve Installation 1 2 NPT Incoming Black Iron Gas Line A i Eo Alternate Gas Supply Through Sub Floor M36 B H M42 B H M36P B H M42P B H VM36 B H VM42 B H VM36P B H VM42P B H 85 219 mm 10 1 2 267 mm Figure 19 Routing Incoming Gas Line Incoming N 1 2 Gas Line N Permitted by Local Codes Figure 20 Sediment Trap 108795 01N www desatech com 13 INSTALLATION Continued A CAUTION Compounds used on threaded joints of gas piping shall be resistant to the action of Liquefied Petroleum LP or propane and should be applied lightly to ensure excess sealant does not enter the gas line WARNING All gas piping and connections must be tested for leaks after the installation is completed After ensuring that the gas valve is on apply a commercial leak detection solution to all con nections and joints If bubbles appear leaks can be detected and corrected Do not use an open flame for leak testing and do no
38. move battery cover on back of remote control unit 2 Attach terminal wires to the battery not in cluded Place battery into the battery housing Note Only use alkaline battery 3 Replace battery cover onto remote control unit Remote Control Unit Battery Cover Wires Housing Figure 17 Installing Battery in Hand Held Remote Control Unit GAS LINE HOOK UP WARNING Gas line hookup should be done by your gas supplier or a qualified service person WARNING Before you pro ceed make sure your gas supply is OFF A manual shutoff valve has been included in the appliance s gas supply system You may consider installing an extra gas shutoff valve outside the appliance s enclosure check with local codes where it can be accessed more conveniently with a key through a wall as shown in Figure 18 In conformance with local codes route a 1 2 NPT gas line to the appliance through hole in left side of firebox or sub floor as shown in Figure 19 CAUTION Do not kink flex ible gas line Sediment Trap Not Supplied DESA recommends that a black iron gas line be routed from the gas source through a sediment trap shown in Figure 20 and into the appliance Once connected through the appliance a flexible gas line may be used for ease of installation to gas control valve see Figure 21 page 14 Before connecting the black iron gas line to the inside of the appliance a sedi
39. nd or DESA who will provide original factory replacement parts Failure to use original factory replacement parts voids this war ranty The heater MUST be installed by a qualified installer in accordance with all local codes and instructions furnished with the unit This warranty does not apply to parts that are not in original condition because of normal wear and tear or parts that fail or become damaged as a result of misuse accidents lack of proper maintenance or defects caused by improper installation Travel diagnostic cost labor transportation and any and all such other costs related to repairing a defective heater will be the responsibility of the owner TO THE FULL EXTENT ALLOWED BY THE LAW OF THE JURISDICTION THAT GOVERNS THE SALE OF THE PRODUCT THIS EXPRESS WARRANTY EXCLUDES ANY AND ALL OTHER EXPRESSED WARRANTIES AND LIMITS THE DURATION OF ANY AND ALL IMPLIED WARRANTIES INCLUDING WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE TO FOUR 4 YEARS ON ALL COMPONENTS FROM THE DATE OF FIRST PURCHASE AND DESA S LIABILITY IS HEREBY LIMITED TO THE PURCHASE PRICE OF THE PRODUCT AND DESA HEATING PRODUCTS SHALL NOT BE LIABLE FOR ANY OTHER DAMAGES WHATSOEVER INCLUDING INDIRECT INCI DENTAL OR CONSEQUENTIAL DAMAGES Some states do not allow a limitation on how long an implied warranty lasts or an exclusion or limitation of incidental or consequential damages so the above limitation on implied warranties or exclusion or limitati
40. ner pan Check all items for any shipping damage If dam aged promptly inform dealer or distributor where you bought the product Safely retain these items for later installation INTRODUCTION Models M36 P B H VM36 P B H M42 P B H and VM42 P B H are vented gas fireplaces that use a millivolt gas control valve with a millivolt ignition system A 6 B Type venting system and a listed type vent cap are not supplied but are required for proper operation See venting instructions on pages 9 and 10 WARNING This gas appli ance must not be connected to a chimney flue servicing a solid fuel burning appliance Models M36 B H VM36 B H M42 B H and VM42 B H are factory equipped for use with natural gas and must be converted when intended for use with propane LP gas A respective model PCBM 36 or PCBM 42 conversion kit may be purchased for simple conversion to propane LP gas See Accessories page 31 BEFORE YOU BEGIN Before beginning the installation of your appli ance read these instructions through completely This DESA appliance and its approved compo nents are safe when installed according to this installation manual and are operated as recom mended by DESA Unless you use DESA approved components tested for this appliance YOU MAY CAUSE A FIRE HAZARD The DESA warranty will be voided by and DESA dis claims any responsibility for the following actions A Modification of the appliance or any of the
41. of flash ing roof jack or a roof thimble At all points the listed clearances must be maintained Vent terminations must be located in accordance with height and proximity rules of NFPA No 54 or CAN CGA B149 These rules apply to vents at 12 in diameter or less and require a minimum height in accordance with the roof pitch and a minimum of 8 ft distance from a vertical wall or obstruction see Figure 11 page 10 If venting horizontally through a side wall be comes necessary a listed thimble approved for use with B type vent must be used Check with your local codes before venting through a side wall Some codes areas allow the use of existing B type vent systems if the system is at or above the recom mended diameter of the flue in this case 6 The flue connection must be made using listed 108795 01N www desatech com 9 VENTING INSTALLATION Continued Listed Vent Cap Listed Listed 5 rie Vent Cap Vent Cap 4 Ux ok T i 24 Maintai 2 2 C MEN Lc AE E 4 22777 Clearance Maintain pru Listed Support Each Listed no Clearance Tou Lateral At 4 Clearance Least Every Six 6 Feet to n 12 Min g 12 Min Position Position Position 12 Min i Firestop Firestop s tal t Listed Listed Clearance Clearance Clearance Y y 1 1
42. on 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 OE AN 2701 Industrial Drive P O Box 90004 Bowling Green KY 42102 9004 www desatech com 108795 01 108795 01 Rev NOT A UPC 04 05
43. ontrol valve see Figure 14 3 Install remote receiver unit onto mounting bracket using the two plastic mounting clips see Figure 15 4 Connect wires to control circuit Connect white wire to terminal marked TH TP on control valve Connect red wire to male blade connector provided at open end of safety cir cuit wiring see Wiring Diagram page 22 5 Locate the battery clip mounted on the back of the receiver see Figure 16 6 Slide 9 volt battery not included through the clip Note Only use alkaline battery 7 Attach the terminal wires to the battery see Figure 16 8 Replace refractory brick access panel Receiver Plastic Mounting Clips Mounting Bracket Figure 15 Installing Remote Receiver Shown from Rear of Mounting Bracket 9 Volt Battery Wires Receiver Figure 16 Installing Battery in Receiver To Safety Circuit Route Millivolt Wall Switch Wires Supplied Supplied Through Gas Line Conduit Sleeve o tol To Thermopile lo LN E N o LA jl E Back View lo DM Note If any of the original wire as supplied must be replaced use 18 AWG TYPE CL2 UL 105 C 25 ft length MAXIMUM or equivalent Figure 14 Wall Switch Wiring Diagram 12 www desatech com 108795 01N INSTALLATION Continued Installing 9 Volt Battery in Hand Held Remote Control Unit 1 Re
44. rews in the spring clip see Figure 36 and pivot plate 8 Close both doors until evenly joined at the middle and note the gap at the outer edges of the face 9 Reopen one door at a time and retighten the upper and lower hold down screws 10 Repeat the process until both doors are evenly joined spaced and working freely CAUTION The glass pan els become very hot while the appliance is operating Do not attempt to adjust or clean the glass doors until the appliance has fully cooled The doors may be removed for replacement or cleaning as follows 1 Partially open the door and press up on the upper spring clip with a screw driver until the outer top pivot pin is free of the clip 2 Fully fold the frame assembly and slide the upper edge towards the center of the firebox opening until the guide pins are free of the frame rail see Figure 37 CAUTION Always operate the appliance with the doors ei ther fully opened or fully closed Operating the appliance with the doors partially open can re sult in improper venting of flue products Hold Down Screw Spring Clip Side Front Face Partially Opened Door irs Figure 36 Adjusting Glass Doors E m Fold Bi Fold Door After Releasing gt Spring Clip Spring Clip and Slide Door Out of Upper Track Depress Spring Clip to Release Pivot Pin Remove Bottom Pin From Pivot Plate While Sl
45. rner must extend beyond the thermopile If your pilot assembly does not meet these re quirements Turn the adjustment screw marked pilot clockwise to decrease or counterclockwise to increase the flame to proper size see Figure 39 page 19 Do not remove the adjustment Screw see Troubleshooting page 19 20 www desatech com 108795 01N INSPECTING BURNERS Continued Thermopile Pilot Burner Figure 42 Correct Pilot Flame Pattern BURNER FLAME PATTERN Burner flames will be steady not lifting or floating Flames should go up through the middle of logset Flames should not spill to the edges of the pan or sides of the logset Figure 43 shows a typical flame pattern If burner flame pattern differs from that described turn appliance off see To Turn Off Gas to Ap pliance page 20 see Troubleshooting page 23 Figure 43 Typical Flame Pattern 108795 01N www desatech com CLEANING AND MAINTENANCE WARNING Installation and repair should be done by a quali fied service person The appli ance should be inspected before each use and at least annually by a qualified service person More frequent cleaning may be required due to excessive lint from carpeting bedding mate rial pet hair etc It is imperative that the control compartments burners and circulating air sys tem be kept clean WARNING The logs can be hot Handle only when cool W
46. s of the fireplace This fireplace is a vented product This fireplace e high traffic areas will not produce any gas leakage into your home if in windy or drafty areas properly installed This fireplace must be properly 5 This fireplace reaches high temperatures Keep installed by a qualified service person If this unit is children and adults away from hot surfaces to not properly installed by a qualified service person avoid burns or clothing ignition Fireplace will gas leakage can occur remain hot for a time after shutdown Allow Carbon Monoxide Poisoning Early signs of surfaces to cool before touching carbon monoxide poisoning resemble the flu with 6 Carefully supervise young children when they headaches dizziness or nausea If you have these are in the room with fireplace signs the fireplace may not have been installed 7 A hearth extension is not required with this properly Get fresh air at once Have fireplace appliance If one is installed it is for aesthetic inspected and serviced by a qualified service purposes only and does not have to meet the person Some people are more affected by carbon standard requirements monoxide than others These include pregnant Turn fireplace off and let cool before servicing women people with heart or lung disease or or repairing Only a qualified service person anemia those under the influence of alcohol and should install service or repair this fireplace those at high altitudes Have
47. t operate any appliance if a leak is detected Complete your gas installation by connecting incoming gas line with flexible gas line Secure tightly with wrench but DO NOT OVER TIGHTEN Flexible Gas Line Gas Shutoff Do NOT Kink Valve Note 1 Wire Connections EMBER AND PAN MATERIAL PLACEMENT 1 Open the bag s of vermiculite and fill the entire burner pan until the burner tube is completely covered see Figure 22 Smooth the pan material just even with edges of the burner pan Remove the ember material from the bag and flatten small amounts into quarter size pieces and lay on top of the surface of the pan mate rial see Figure 23 Place just enough to cover the entire surface and leave about a 1 2 inch gap under the lower grate members to allow air to flow see Figure 24 page 15 Vermiculite Pan Material Grate Burner Pan Figure 22 Fill Entire Burner Pan with Vermiculite Ember Material Vermiculite Pan Material Burner Figure 23 Ember Material on Surface of Pan Material Vermiculite Red Surface Indicates For Propane LP Use Only i Pilot Adj P 1 2 NPT Not Shown for Clarity Incoming 2 1 8 NPT Plugged Pressure Tap Gas Line Tapping Inlet Pressure Tap Figure 21 Connecting Flexible Gas Line to Millivolt Valve 14 www desatech com 108795 01N INSTALLATION Continued Grate Pan and E
48. this is the case please request help from someone else The M36 VM36 M42 and VM42 B vent fire places are approved for use with optional bi fold glass doors see Accessories page 31 The glass panels may be ordered and installed anytime after the fireplace installation is complete Follow these steps to install left and right panels 1 With the handle at the bottom completely fold the panel on its hinges 2 With the handle facing the center of the firebox opening insert the lower pivot pin on the glass door panel into the hole in pivot plate on the bottom edge of the fireplace opening see Figure 35 3 Keeping the folded door tilted slide the upper two pins into the guide track found under the upper facial edge of the firebox opening 4 Tilt the glass assembly fully vertical until the outer pivot pin snaps into the mounting hole in the upper spring clip see Figure 35 5 Once the top and bottom pins are secured unfold the door into the closed position Insert Pin Into Spring Clip Spring Clip 3 Slide Top c Pin Into 7 Door Track I ottom Pivot Pin Into Pivot Plate and Swing Door Into Vertical Position gen ivot Plate Figure 35 Installing Optional Glass Door 108795 01N www desatech com 17 INSTALLATION Continued 6 Repeat the process for the opposite door assembly 7 adjust the doors slide them partially open Using a screwdriver loosen the hold down sc
49. to instructing you on how to install and maintain your appliance it also contains infor mation that will enable you to obtain replacement parts or optional accessory items when needed Keep it with your other important papers This appliance may be installed in an aftermarket per manently located manufactured mobile home where not prohibited by state or local codes This appliance is only for use with the type of gas indi cated on the rating plate This appliance is not convertible for use with other gases unless a certified kit is used Aftermarket Completion of sale not for purpose of resale from the manufacturer TABLE OF CONTENTS Safety Information iere 3 Cleaning and Maintenance UNPACKING tenete 4 Wiring Diagram lntrod ctlon 4 Service Hints Selecting A pase ese 5 Technical Service Prod ct Specifications ei 6 Replacement Parts Pre Installation Preparation 7 Troubleshooting esses Venting Installation 9 Illustrated Parts Breakdown and Parts List 26 i P M ban 11 ICCOSSOMOS M 31 Operating 19 Warranty Information Back Page Inspecting Burners see 20 2
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