Home

Lennox Hearth MPD-3530CNM-B Indoor Fireplace User Manual

1. of Door Frame Hood must be installed as shown Clean Face Models Figure 65 Combustible Finished Wall Materials D This area must remain clear of combustible materials Combustible material may touch top of appliance Spacing Combustible Top Standoff materials NOT allowed below this point face of Appliance of appliance Li Louvers of Door Frame Hood must be installed as shown Louver Face Models Figure 66 LENNOX HEARTH PRODUCTS MERIT PLUS DIRECT VENT GAS FIREPLACES MPD33 35 40 45 INSTALLATION INSTRUCTIONS STEP 13 ATTACHING SAFETY IN OPERATION WARNINGS It is the installer s responsibility to ensure these warnings are properly affixed during installation These warning labels are a critical step in informing consumers of safe operation of this appliance ATTACHING SAFETY IN OPERATION WARNINGS It is required that the safety instruction labels furnished with the fireplace be affixed to the op eration and control point of the fireplace A safety instruction label must be affixed to the wall switch plate where the fireplace is turned on and off See Figure A or wall thermostat See Figure B and if used on the remote control handheld transmitter Figure C To properly complete the installation of this fireplace locate the multi lingual adhesive labels provided with the Care and Operation Instructions and proceed as follows
2. n oue 24 eale arnam 9 af 9 3 mm 1146 Figure 13 11 NOTE DIAGRAMS amp ILLUSTRATIONS ARE NOT TO SCALE 12 LENNOX HEARTH PRODUCTS MERIT PLUS DIRECT VENT GAS FIREPLACES MPD33 35 40 45 INSTALLATION INSTRUCTIONS FIREPLACE FRAMING SPECIFICATIONS a e 6 8 MPOT 8328 MPDR 3328 3 4 MPD and MPDT units MPD 4540 Note e Rear Vent Applications in Corner Installations The horizontal vent length from to must not exceed 28 inches 711 mm e MPDT 3328 AND MPDR 3328 Models Dimensions A through F occur when one 45 degree elbow is connected directly to the appliance collar MPD and MPDR units Q D X e MPD 3530 MPD 4035 and MPD 4540 Models Dimensions D through F occur when one 45 degree elbow is connected directly to the appliance collar Back wall of chase enclosure including any finishing materials Figure 14 Corner Framing with Horizontal Termination Step 2 ROUTING GAS LINE Route a 1 2 13 mm gas line to the left side of the appliance as shown in Figure 15 Gas lines must be routed constructed and made of materials that are in strict accordance with local codes and regulations All appliances are factory equipped with a flexible gas line connector and 1 2 inch shutoff valve See Step 6 on Page 25 Left Side Front Corner of Fireplace Framing Pipe Coupling Recommended
3. Also see Figure 13 Figure 15 Route Gas Line Proper Sizing of Gas Line Properly size and route the gas supply line from the supply regulator to the area where the appliance is to be installed per requirements outlined in the National Fuel Gas Code NFPA 04 latest edition USA or CAN CSA B149 1 latest edition Canada Never use galvanized or plastic pipe Refer to Table 6 for proper sizing of the gas supply line if black iron pipe is being used Gas lines must be routed constructed and made of materials that are in strict accordance with local codes and regulations We recommend that a quali fied individual such as a plumber or gas fitter be hired to correctly size and route the gas supply line to the appliance Installing a gas supply line from the fuel supply to the appliance involves numerous considerations of materials protection sizing locations controls pressure sediment and more Certainly no one unfamil iar and unqualified should attempt sizing or installing gas piping Schedule 40 Black Iron Pipe Inside Diameter Inches Schedule 40 Pipe Length feet 0 10 10 40 40 100 100 150 150 200 Table 6 Propane Gas 3 8 1 2 1 2 1 2 1 2 NOTE DIAGRAMS amp ILLUSTRATIONS ARE NOT TO SCALE Notes e All appliances are factory equipped with a flexible gas line connector and 1 2 inch Shutoff valve see Figure 50 on Pagec 25 See Massachusetts Requirements on 4 f
4. LENNOX HEARTH PRODUCTS MERIT PLUS DIRECT VENT GAS FIREPLACES MPD33 35 40 45 INSTALLATION INSTRUCTIONS INSTALLATION ACCESSORIES CONTINUED Listed Secure Flex Components atf Model Description These termination kits include firestop spacer gear clamps and flex adaptor 60L10 SF 18 osk03 SF 12 H2248 SF4 5HF 10 H2249 SF4 5VF 10 96L 74 SFVT30 56L75 SFVT45 91166 SFGC4 6 91L67 SFGC7 6 H7748 H7748 18 feet 5 49 m compressed flex Ref Instr 50053M 12 feet 3 66 m compressed flex Ref Instr 50052M Firestop Spacer Horizontal flex 3 1 1 spacing 10 Pack Firestop Spacer Vertical flex 1 1 1 spacing 10 Pk Vertical Termination for flex flatto 6 12 with flex adaptor section of rigid vent roof Supportcollar assembly roof flashing and storm collar Ref Instr 750052M Vertical Termination for flex 6 12 to 12 12 with flex adaptor section of rigid vent roof support collar assembly roof flashing and storm collar Ref Instr 750052M Gear Clamp 4 5 in 114mm for flex 6 pack Gear Clamp 7 5 in 190 5 mm for flex 6 pack 36 Flex Connector Kit 36 of flex with two adapters for mating two rigid sections of vent together Listed Secure Flex Components Model Description 7 L91 94L09 SFKIT48S SFKIT12SS SFKIT18SS SFKIT24SS SFKIT36SS SFKIT48SS SF HTSS Horizontal Square Termina tion f
5. Dimple Locking Incline Channel Appliance collar Vent Appliance Collar Connection Align the dimple four places of the upper vent section with the opening of the locking incline channel on the lower vent section Twist vent component clockwise to engage and seal until arrow and dimple align Locking Incline Channel Ch Connected Vent Sections Vent Vent Section Connection Figure 23 To attach a vent component to the appliance collar align the dimpled end over the collar adjusting the radial alignment until the four locking dimples are aligned with the inlet of the four inclined channels on the collar refer to Figure 22 Push the vent component against the collar until it fully engages then twist the component clockwise running the dimples down and along the incline channels until they seat at the end of the channels The unitized design of the Secure Vent components will engage and seal both the inner and outer pipe without the need for sealant or screws If desired a 6 x 1 2 screw may be used at the joint but it is not required as the pipe will securely lock when twisted Note An elbow may also be attached to the appliance collar Attach in the same manner as you would a vent section C Attachventcomponentsto each other Other vent sections may be added to the previously installed section in accordance with the require ments of the vertical vent figures and tables To add ano
6. Manifold Gas Supply Pressure all models Low High Lo 1 6 WC Hi 3 5 WC 0 40 kPa 0 87 kPa Lo 6 3 WC Hi 10 0 WC 1 57 kPa 2 49 kPa Table 3 Test gauge connections are provided on the front of the millivolt and electronic gas control valve identified IN for the inlet and OUT for the manifold side The control valves have 3 8 10mm NPT thread inlet and outlet side of the valve refer to Figures 1 and 2 Propane Propane tanks are at pressures that will cause damage to valve components Verify that the tanks have step down regulators to reduce the pressure to safe levels These appliances must be isolated from the gas supply piping system by closing their individual manual shut off 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 Theseappliances and their individual shut off valves must be disconnected from the gas supply piping system during any pressure testing of that system at pressures greater than 1 2 psig 3 5 kPa These appliances must not be connected to a chimney or flue serving a separate solid fuel burning appliance Orifice Sizes Sea Level to High Altitude All Models These appliances are tested and approved for installation at elevations of 0 4500 feet 0 1372 meters above sea level using the standard burner orifice sizes marked with an in Table 4 For elevations ab
7. 1 Locate the wall switch or wall thermostat that controls the fireplace verify the switch operates the fireplace by turning it on and off Clean the wall switch plate or wall thermostat thoroughly to remove any dust and oils Affix the label to the surface of the plate of the wall switch that controls the fireplace Figure A or the wall thermostat Figure B Choose the language primarily spoken in the home If unknown affix the English language label 2 faremote control is used to control the fireplace locate the transmitter and clean it thoroughly to remove any dust and oils Affix the label to the surface of handheld transmitter Figure C Choose the language primarily spoken in the home If unknown affix the English language label 3 If you are unable to locate the labels please call Lennox Hearth Products or your nearest Lennox Hearth Products dealer to receive additional safety instruction labels free of charge Cat No H8024 Replacement Label Kit LENNOX HEARTH PRODUCTS 1 800 9 LENNOX Note English is red text on clear label French and panish are white text on black label SAFETY LABEL DIAGRAMS WARNING EXTREMELY HOT glass and fireplace Risk of Severe Burns ALWAYS KEEP CHILDREN AWAY FROM FIREPLACE Figure A APPOSITION DES MISES EN GARDE RELATIVES A LA SECURITE D UTILISATION est imp ratif que les tiquettes de s curit fournies avec le foyer soient coll es c t des d
8. TOP VENT APPLICATION VERTICAL VENT HORIZONTAL VENT Rear Vent Application Rear Vent Application without a chase p rg HORIZONTAL VENT HORIZONTAL VENT VERTICAL VENT Rear Vent Application with a chase Top Vent Application Top Vent Application Figure 3 Typical Locations LOCATION In selecting the location the aesthetic and functional use of the appliance are primary concerns However vent system routing to the exterior and access to the fuel supply are also important Due to high temperatures the appliance should be located out of traffic and away from furniture and draperies Figure 3 En raison des temp ratures lev es l appareil devrait tre install dans un endroit ou il y a peu de circulation et loin du mobilier et des tentures Figure 3 The location should also be free of electrical plumbing or other heating air conditioning ducting These direct vent appliances are uniquely suited for installations requiring a utility shelf positioned directly above the fireplace Util ity shelves like these are commonly used for locat ing television sets and decorative plants NOTE DIAGRAMS amp ILLUSTRATIONS ARE NOT TO SCALE Be aware that this is a heat producing ap pliance Objects placed above the unit are exposed to elevated temperatures Do not insulate the space between the appli ance and the area above it see Figure 8 The minimum heightfrom the base of the appli
9. 193 1525 o o 5 o je 15 51 0151014178 1805 1585 1 o o o 4 js 1855 1835 0 1 o o 4 js 2005 e o 1 s o m aw zs o o o 6 o je 2115 mem 1 o o 6 o jr 12175 18151 0 1 o 6 o 7 mas pwus v o 3 5 5 r ms pwss o 9 o 9 5 Cm pus 3 9 3 72 5 e Pears mus v 9 7 r Cus pss 3 9 3 7 5 e cwn p T7 1 121 101 1171 Cms 3 9 rms o 3 5 r 2685185191 fo 9 5 r Cs ous 9 o 1 9 5 r Eos oes 9 o o 9 ofe ras poss 3 9 3 9 fo Coss us v o 9 9 7 r Cm pes 3 o 2 9 7 e Cw p 9 7 5681851010 2 fo 3651551110 3 oo fr Cm ps 1 101 res sors 3 o 9 5 e Paras foie o v o 5 9 fr Fas wes o o 9 Fam pss 3 o fo Fus pss toto fo fo fre Table summarizes each system s minimum and maximum vertical and horizontal length values that can be used to design and install the vent components in a variety of applications Fus o 1 195 165 2 a us e fo 25 198519 fo fr Css 551112 fu ais pesto 3 fo Fus o fo Fes esto 2 1 1 1 10 Ces ssp o Fes ares fe 7 Es peso Ces peso 1 51 10 1551 1 ss 1 3 Ems eus 9 0 85 ses o 3 Ca es fo
10. COVER PLATE SECURING SCREWS CROSS SECTION INSIDE UNIT Figure 16 ON MPD 3530 4035 4540 SERIES MODELS COMBINED TOP AND REAR VENT UNITS REAR VENT SEAL amp COVER PLATE REMOVAL WHEN USING THE REAR VENT VENT SEAL PLATE COVER PLATE SECURING SCREWS GASKET SECURING SCREWS REAR VENT CABINET BACK INSIDE UNIT OUTSIDE UNIT CROSS SECTION Figure 17 NOTE DIAGRAMS amp ILLUSTRATIONS ARE NOT TO SCALE Select Venting System Horizontal or Vertical With the appliance secured in framing determine vent routing and identify the exterior termina tion location The following sections describe vertical roof and horizontal exterior wall vent applications Refer to the section relating to your installation A list of approved venting components are shown on Pages 34 and 35 VENT RESTRICTOR INSTALLATION TOP VENT A vent restrictor may be needed when vertically terminating the vent system above the roof when using the appliance top vent install vent restrictor in the top vent of the fireplace outlet on MPD 3530 4035 4540 and MPDT 3328 series models If needed install the restrictor orientated as shown either from inside or outside the unit in the inner fireplace collar RESTRICTOR COLLAR APPLIANCE TOP VENT OUTLET Figure 18 VENT RESTRICTOR INSTALLATION REAR VENT A vent restrictor may be needed when horzontally termina
11. If the information in these instructions AVERTISSEMENT Assurez vous de bien suivre les is not followed exactly a fire or explosion may instructions donn es dans cette notice pour r duire au result causing property damage personal injury minimum le risque d incindie ou d explosion ou pour or death viter tout dommage mat riel toute blessure ou la mort Do not store or use gasoline or other flammable Ne pas entreposer ni utilizer d essence ni d autres vapeurs vapors and liquids in the vicinity of this or any other ou liquides inflammables dans le voisinage de cet appareil appliance ou de tout autre appareil WHAT TO DO IF YOU SMELL GAS QUE FAIRE SI VOUS SENTEZ UNE ODEUR DE GAZ e Do not try to light any appliance e Ne pas tenter d allumer d appareil e Do not touch any electrical switch do not use any e Ne touchez aucan interrupteur Ne pas vous servir des phone in your building telephones se trouvant dans le b timent ou vous trouvez e immediately call your gas supplier from a e Appelez imm diatement votre fournisseur de gaz depuis neighbor s phone Follow the gas supplier s un voisin Suivez les instructions du fournisseur instructions e Si vous ne pouvez rejoindre le fournisseur de gaz e f you cannot reach your gas supplier call the fire appelez le service des incindies department L installation et l entretien doivent tre assur s par un Installation and service must be performed by a installateur ou un serv
12. MANTEL Area Safe Zone Fireplace 10 254 MANTEL 12 Min Distance To Protected Perpendicular Side Wall TOP OF APPLIANCE 8 1 4 Min Distance To 14 gt Unprotected Perpendicular Side Wall NOTE Hood shown as positioned In louvered Combustible materials may project beyond one side of the fireplace front model The hood position in the flush 0 faced front model is pe than shown opening as long as they are kept within the shaded areas illustrated here Figure 9 Minimum Mantel Clearances Figure 10 Minimum Distance to Side Wall A WARNING Failure to position the parts in accordance with these diagrams or failure to use only parts specifically approved with this appliance may result in property damage or personal injury AVERTISSEMENT Risque de dommages ou de blessures si les pi ces ne sont pas install es conform ment a ces sch mas et ou si des pi ces autres que celles sp cifiquement approuv es avec cet appareil sont utilis es NOTE DIAGRAMS amp ILLUSTRATIONS ARE NOT TO SCALE 10 LENNOX HEARTH PRODUCTS MERIT PLUS DIRECT VENT GAS FIREPLACES MPD33 35 40 45 INSTALLATION INSTRUCTIONS PRE INSTALLATION STEPS The appliance is shipped with all gas controls and components installed and pre wired Before installing the appliance follow these Steps 1 Remove the shipping carton 2 Remove the shipping pad exposing the front glass door 3 Open the two latches se
13. Slide the gear clamp down and tighten it fully to secure the flexible vent to the adapter outer collar approximately 3 4 inch from the end of the flex 6 Install three screws 120 degrees apart through the flexible vent pipe and into the adapter collar just below the gear clamp to provide additional security to the connection C Route Flex Vent Ensure that the flex vent is properly routed to provide the required clearance Do Not allow the flexible vent to bend in a radius tighter than 3 127 mm Refer to Figure 46 Support horizontal sections of flex with metal straps at 2 foot 0 61 m intervals D Install Firestop Spacers at ceilings and walls When Secure Flex penetrates a wall or ceiling a firestop spacer is required use the SF4 5 VF firestop spacer for ceilings and the SF4 5 HF firestop spacer for walls NOTE DIAGRAMS amp ILLUSTRATIONS ARE NOT TO SCALE Collar or Secure Vent Sections see the appropriate sections and figures shown throughout the venting section for their instal lation requirments Flexible Vent Section 27 mm Radius Minimum Figure 46 E Attach Flex Vent to Termination Secure Flex components can be purchased separately and attached to bulk lengths of Secure Flex flexible tubing cut to size at the job site Securethe flexible ventto the Secure Flex terminations in the same manner see Figure 45 as it was attached to the adapter Note Secure Flex vent must be attached
14. ance to the underside of combustible materials used to construct a utility shelf in this fashion is shown in Figure 8 The appliance should be mounted on a fully supported base extending the full width and depth of the unit The appliance may be located onornear conventional construction materials However if installed on combustible materials such as carpeting vinyl tile etc a metal or wood barrier covering the entire bottom surface must be used LENNOX HEARTH PRODUCTS MERIT PLUS DIRECT VENT GAS FIREPLACES MPD33 35 40 45 INSTALLATION INSTRUCTIONS VENT TERMINATION CLEARANCES These instructions should be used as a guideline and do not supersede local codes in any way Install venting according to local codes these instructions the current National Fuel Gas Code ANSI Z223 1 in the USA or the current standards of CAN CSA B149 1 in Canada Vertical Vent Termination Clearances Terminate multiple ventterminations according to the installation codes listed above and Figures 4 and 5 Vertical Vent Termination Clearances TERMINATION HEIGHTS FOR VENTS ABOVE FLAT OR SLOPED ROOFS Horizontal Overhang 2 FT Vertical 2 FT MIN MIN Wall Lowest Discharge Vent Opening Termination H Storm Collar 1 Roof Pitch is X 12 Flashing 288 1 inch 25 4 mm Minimum Clearance to Combustibles Concentric Vent Pipe Figure 5 H MINIMUM HEIGHT FROM ROOF TO LOWEST DISCHARGE OPENING OF VENT Th
15. 2 inches 5 08cm minimum SV4 5HT 2e 6 inches 15 2cm minimum SV4 5HTSS 6 inches 15 2cm minimum SV4 5HTSS H Clearance to each inside of center line extended above 3 feet 91cm within a height of 15 feet 3 feet 91cm within a height of 15 feet above the meter regulator assembly above the meter regulator assembly T Clearance to service reguitorventowlet Steet Tem J Clearance to nonmechanical air supply inlet to building or 6 inches 15cm for appliances 6 inches 15cm for appliances the combustion air inlet to any other appliance lt 10 000 Btuh 3kW 12 inches 30cm lt 10 000 Btuh 3kW 9 inches 23cm for appliances gt 10 000 Btuh 3kW for appliances gt 10 000 Btuh 3kW and lt 50 000 Btuh 15kW 12 inches 30cm for appliances gt 50 000 Btuh 15kW K Clearance to a mechanical air supply inlet 6 feet 1 83m 3 feet 91cm above if within 10 feet 3m L Clearance above paved sidewalk or paved diveway located on public property M Clearance under veranda porch deck or balcony 12 inches 30cm 1 12 inches 30cm t N Depth of Alcove Maximum 6 feet 1 83m 6 feet 1 83m D Clearance to Termination Alcove 6 inches 152mm 3 Simhes 2mm 5 5 7 P Width of Alcove Minimum Q Clearance to Combustible Above Alcove 18 inches 457mm 18 inches 457mm In accordance with the current CSA B149 1 National Gas And Propane Installation Code In accorda
16. 5 Field Wiring 25 Step 6 Optional Blower Kit Wiring 26 Step 7 Connecting Gas Line 26 Step 8 Verifying Appliance 27 Step 9 Installing Logs 20 Step 10 Remove Install Glass Door 32 Step 11 Burner Adjustments 32 Step 12 Hood Installation 34 Finishing Requirements 34 Step 13 Attaching Safety in Operation Warnings 39 Installation Accessories 36 Gas Conversion Kits 38 Please read and understand these instructions before beginning your installation NATIONAL FIREPLACE We recommend that our gas INSTITUTE hearth products be installed NA and serviced by profes sionals who are certified in the U S by the National Fireplace Institute NFI as CERTIFIED NFI Gas Specialists www nficertified org PACKAGING The assembled vented gas fireplace heater is packaged with 1 set Logs packaged in a carton inside the firebox 1 bag Glowing Embers in bottom compart ment e Literature Kit envelope in bottom com partment containing Care and Operation Instructions Installation Instructions Safety In Operation Warning Labels Warranty e 1 Vent Restrictor attached to Literature K
17. ARE NOT TO SCALE LENNOX HEARTH PRODUCTS MERIT PLUS DIRECT VENT GAS FIREPLACES MPD33 35 40 45 INSTALLATION INSTRUCTIONS Adjusting Set Screw Adjustment Rod Up Fully Open Position Burner Tube Air Shutter Adjustment Rod Down minimum air opening position FACTORY AIR SHUTTER SETTING 1 32 0 8 MPDT 3328 2716 14 76 1 32 0 8 MPDR 3328 2716 1476 1 32 08 MPD 3530 18 3 2 MPD 4035 T am 1 8 3 2 MPD 4540 172 13 Figure 64 Step 12 HOOD INSTALLATION Refer to Figures 65 and 66 All models must have hoods installed prior to operating On all clean face units slide the hood into the slots on the lower edge of the radiant panel Figure 65 On louvered face units slide the hood into the slots on the lower edge of the cabinet top Figure 66 FINISHING REQUIREMENTS Wall Details Complete finished interior wall To install the appliance facing flush with the finished wall position framework to accommodate the thick ness of the finished wall Figures 65 and 66 See Page 5 for Cold Climate Insulation and Page 8 for Clearances NOTE DIAGRAMS amp ILLUSTRATIONS ARE NOT TO SCALE Combustible Finished Wall Materials This area must remain clear of combustible materials Combustible material may touch top of appliance f Header Spacing Combustible Top Standoff materials NOT allowed below this point on face of appliance Top of Appliance Radiant panel
18. All top logs that rest on lower logs do so over flattened mounting faces in the bottom logs Proper log and twig placement is critical to encourage outstanding flame appearance and prevent sooting NOTE DIAGRAMS amp ILLUSTRATIONS ARE NOT TO SCALE 29 LENNOX HEARTH PRODUCTS MERIT PLUS DIRECT VENT GAS FIREPLACES MPD33 35 40 45 INSTALLATION INSTRUCTIONS MPD 3530 LOG PLACEMENT Log Description Stamped Log Rear 39 5 Log Left 39 1 4 Log Top Center 39 6 Log Top Left 39 3 6 Log Top Right 39 4 Log Right 39 2 Catalog Number for the entire log set 24M22 Position the individual logs as shown below Logs should be placed in the order shown Position the rear log on the brackets at the rear of the firebox with the log s notches directly over the brackets Position the right log log no 3 by inserting the pin from the rear log into the hole on its upper end Place the left log and then the Smaller left and right top logs All logs that have notches to fit over the grate tines should be positioned with these notches directly against the grate All top logs that rest on lower logs do so over flattened mounting faces in the bottom logs Proper log and twig placement is critical to encourage outstanding flame appearance and prevent sooting ACRES VUE n 6 6 7 d pw mu n 8 s a ee 5 AU a eta s dL Llc Fig
19. HEARTH PRODUCTS MERIT PLUS DIRECT VENT GAS FIREPLACES MPD33 35 40 45 INSTALLATION INSTRUCTIONS EXTERIOR HORIZONTAL VENT TERMINATION CLEARANCE REQUIREMENTS NOTE Local Codes Or Regulations May Require Different Clearances See Item D in the Text Below Exterior Wall NOTE Location Of The Vent Termination Must Not Interfere With Access To The Electrical Service Inside Corner Detail S 7 9 in U S z 12 in Canada NY Termination 6 f S SS Ventilated Soffit Inside Corner Detail D SEAN 522 SS e SS SK um DRE ich B a WN Air Supply Inlet Vent Termination gt Area where Termination is not Permitted A Clearance above grade veranda porch deck or balcony 12 inches 30 Clearance to window door that may be opened 6 inches 15cm for appliances 6 inches 15cm for appliances 10 000 Btuh 3kW 12 inches 30cm 10 000 Btuh 3kW 9 inches 23cm for appliances 10 000 Btuh 3kW for appliances 10 000 Btuh 3kW and 50 000 Btuh 15kW 12 inches 30cm for appliances gt 50 000 Btuh 15kW prevent window condensation prevent window condensation termination within a horizontal distance of 18 inches 458mm E Clearance to unventiiated soft 12 inches 305mm Pmsp G Clearance to inside corner 2 inches 5 08cm minimum SV4 5HT 2
20. INSTALLATION INSTRUCTIONS Step 1 TURN OFF THE GAS SUPPLY TO THE APPLIANCE and disconnect power supply at the circuit breaker Ensure appliance is cold CAUTION THE GAS SUPPLY SHALL BE SHUT OFF PRIOR TO DISCONNECTING THE ELECTRICAL POWER BEFORE PROCEED ING WITH THE CONVERSION ATTENTION AVANT D EFFECTUER LA CONVERSION COUPEZ D ABORD L ALIMENTATION EN GAZ ENSUITE COUPEZ L ALIMENTATION LECTRIQUE Open the bottom drop down door Open it see Figure 52 on page 27 by pushing in simultane ously the left and right top corners of the door The door is hinged at the bottom Remove the bottom compartment door by sliding the hinge pin located at the door s left side to the right until it disengages from the left corner post hole Pull the door diagonally to the left away from the fireplace Remove the front glass door frame from the appliance LENNOX HEARTH PRODUCTS MERIT PLUS DIRECT VENT GAS FIREPLACES MPD33 35 40 45 INSTALLATION INSTRUCTIONS Step 2 Carefully remove the logs Exercise care so as not to break the logs Step 3 Refer to Figure 67 A Above the burner remove the two baffle securing screws Remove the baffle B Remove the two screws securing the trap ezoidal plate to the burner Remove the plate C Remove the burner assembly with attached venturi tube Burner Assembly Gas Valve Assembly Figure 67 Millivolt Appliances Step 4 SIT Systems Refer to Figure 68 and the in
21. MOUNTED ON OFF SWITCH OPTIONAL BK W 1 GAS VALVE WALL MOUNTED ON OFF SWITCH OPTIONAL THERMOSTAT OPTIONAL m WALL MOUNTED CONFIGURATION FOR FAN SWITCH OPTIONAL FAN OPTIONAL Figure 47 Electronic Wiring Diagram Honeywell Showing the Blower Wiring for the Optional FBK 100 and FBK 200 Kits 1 If any of the original wire as supplied must be replaced it must be replaced with Type AWM 105 C 18 GA wire 2 120V 60Hz Less than 3 amps Leave the ON OFF switch which is integral ON OFF Switch Integral MA with the gas valve in the ON position with Gas Valve Gas Valve PILOT ASSEMBLY L Ground Green Neutral White 120 VAC Black OPTIONAL APPLIANCE MOUNTED ON OFF SWITCH OR OPTIONAL WALL SWITCH OR OPTIONAL THERMOSTAT OR OPTIONAL REMOTE RECEIVER Blower speed control switch is provided in FBK200 blower kit Factory Wired Field Wired Schematic Representation Only Figure 48 Electronic Wiring Diagram Honeywell Showing the Blower Wiring for the Optional FBK 250 Kits 1 If any of the original wire as supplied must be replaced it must be replaced with Type AWM 105 C 18 GA wire 2 120V 60Hz Less than 3 amps 2 Leave the ON OFF switch which is integral ON OFF Switch Integral with the gas valve in the ON position with Gas Valve Ground Green Neutral White 120 VAC Black PILOT ASSEM
22. SV4 5FA 1 12 to 7 12 Adjustable Flashing 77L80 SV4 5FB 7 12 to 12 12 Adjustable Flashing Ref Instr 750109M 77 81 SV4 5SC6 Storm Collar 6 per box SV4 5HGS 12 Termination Guard Hori zontal Square 12 pack H6183 SV4 5HF5 Firestop Spacer 5 rigid H6184 SFA 5HF5 Firestop Spacer 5 flex H4716 H4717 94L10 98L27 17 52 17M53 Ref Instr 50109M SV4 5HGS Termination Guard for Horizontal Square Termi nation Deluxe 1 pack Ref Instr 750055M 87 02 5820 SV4 5HTSK Termination Shroud Guard for Horizontal Square Termination 1 pack Ref Instr 750246M H3907 SV4 5ARSA Attic Insulation Shield w adjustable height 12 22 H1988 Chase Top Shroud Kit 36 amem ms igi iim 1 tyre 11 25 0 4 p 7 j 1 nN nd ual 8 Arch 3 X 3 Ft Ref Instr 750194M Chase Top Shroud Kit Open Top 3X3 Ft Ref Instr 50193M CTSO 44 Chase Top Shroud Kit Open Top 4 X4 Ft Ref Instr 50193M CTS0 46 Chase Top Shroud Kit Open Top 4X6 Ft Ref Instr 50193M H2246 SV4 5HF 10 Firestop Spacer Horizon tal rigid 3 1 1 spacing 10 Pack H2247 SV4 5VF 10 Firestop Spacer Vertical rigid 1 1 1 spacing 10 Pack e 96K92 Sv4 5SP Support Plate Only for use with MPDT R 3328 and MPD 3530 models NOTE DIAGRAMS amp ILLUSTRATIONS ARE NOT TO SCALE
23. Wall Figure 35 The unitized design of the Secure Vent compo nents will engage and seal both the inner and outer pipe elements with the same procedure Sealant and securing screws are not required Note An elbow may also be attached to the appliance collar Attach in the same manner as you would a vent section E Attachventcomponentsto each other Other vent sections may be added to the previously installed section in accordance with the require ments of the vent tables To add another vent component to a length of vent run align the dimpled end of the component overthe inclined channel end of the previously installed section adjusting the radial alignment until the four lock ing dimples are aligned with the inlets of the four incline channels of the previous section Push the vent component againstthe previous section until it fully engages then twist the component clockwise running the dimples down and along the incline channels until they seat at the end of the channels This seating position is indicated by the alignment of the arrow and dimple as shown in Figure 23 on page 15 F Install firestop spacer at ceiling When using Secure Vent use SV4 5VF firestop spacer at ceiling joists when using Secure Flex use SFA 5VF firestop spacer If there is living space above the ceiling level the firestop spacer must be installed on the bottom side of the ceiling If attic space is above the ceiling the firestop spacer m
24. according to the installation instruc tions provided with the kits 120V 60HZ 1PH Wall mounted ON OFF Blower Switch or Variable Speed Control Switch Junction Box Ground Green Neutral White 120 VAC Black q White _L Green Neutral Side of Receptacle Plug blower into this receptacle Tab Intact Green Ground Screw Field Wired Factory Wired Blower Figure 50 Junction Box Wiring FBK 250 Blower Kit See Figure 49 on page 25 An electrical outlet box is provided for the installation of the FBK 250 forced air blower kit Electrical power must be provided to this box to operate these blowers Install the blower kit according to the installation instructions provided with the kit Note The tab connecting the receptacles of the outlet box must be broken in FBK 100 and FBK 200 blower kitapplications See Figure 50 Step 7 CONNECTING GAS LINE Make gas line connections All codes require a Shut off valve mounted inthe supply line Figure 57 illustrates two methods for connecting the gas supply The flex line method is acceptable in the U S however Canadian requirements vary depending on locality Installation must be in compliance with local codes NOTE DIAGRAMS amp ILLUSTRATIONS ARE NOT TO SCALE A sediment trap is recommended in the gas piping within the home to prevent mois
25. and may be located closer than 1 2 from screw heads and the firebox wrapper in areas adjacent to the nailing flanges Frame the opening to the exact dimensions specified in the framing details in this manual Figure 12 LENNOX HEARTH PRODUCTS MERIT PLUS DIRECT VENT GAS FIREPLACES MPD33 35 40 45 INSTALLATION INSTRUCTIONS FIREPLACE AND FRAMING SPECIFICATIONS Framing VENT FRAMING Framing should be TOP VENT WITH ONE w 40 constructed of 2x4 Model No A B DYE 90 ELBOW 102 or larger lumber 33 1 4 331 4 3734 1278 C In MPDT 3328 VENT FRAMING 845 REAR VENT WITH Qn amp JT f s IN zm NN c PS Diagrams illustrations and photographs are not to scale Consult installation instructions Product designs materials dimensions specifications colors A and prices are subject to change or discontinuance without notice ENER GUIDE Coaxial DV Vent Size 4 1 2 Inner 7 1 2 Outer Look for the EnerGuide B Gas Fireplace Energy Efficiency Rating in this brochure Inches mm gt f zi Dimension E is the required framing depth when the finish material drywall thickness is 1 2 in 13mm Based on CSA 4 1 02 Efficiencies Viewable Glass Size Natural Gas Propane 27 1 2 Wide T 1mm Vertical Venting through the Ceiling P4 P4 EME Frame ceiling opening Use a plumb line from the ceiling
26. as shown in Table 5 on Page 8 Ifthe appliance is to be elevated above floor level asolid continuous platform must be constructed below the appliance Headers may be in direct contact with the appli ance top standoff spacers when they are bent up vertically maintaining the 3 clearance to the fireplace top but must not be supported by them or notched to fit around them All construction above the appliance must be Self supporting DO NOT use the appliance for structural support secure the fireplace to the side framing members using the unit s nailing flanges one top and bottom on each side of the fireplace front See Figure 12 Use 8d nails or their equivalent IMPORTANT Bend up the appropriate header spacing top standoffs before installing the fireplace Header Spacing Top Standoffs two pairs on front edge of firebox top Lift up outer pair for 1 2 finish materials Lift up inner pair for Y 5 8 finish materials Unit Nailing Flange No clearance to combustible framing is required Side Framing Unit Secured to Framing by Nailing Flange Left Side Front Corner of Fireplace Shown Right side requirements are the same NOTE The nailing flanges combustible members and screw heads in areas directly adjacent to the nailing flanges are EXEMPT from the 1 2 clearance to combustible requirements for the firebox outer wrapper Combustible framing may be in direct contact with the nailing flanges
27. attach manometer to the manifold side pressure test fitting and adjust Screw until pressure reads 3 5 inches water column 0 87 kPa for natural gas and 10 0 inches water column 2 49 kPa for propane gas Manifold Pressure Test Port Slotted Adjusting Screw Figure 70 39 40 LENNOX HEARTH PRODUCTS MERIT PLUS DIRECT VENT GAS FIREPLACES MPD33 35 40 45 INSTALLATION INSTRUCTIONS oee Figure 71 and replace the pilot orifice as follows Remove the ignitor assembly retainer clip and carefully remove the ignitor assembly Exercise extreme care to prevent damage to or breakage of the ignitor assembly Remove the screw securing the pilot assembly to its mounting bracket Back off the flare nut at the end of the pilot gas line to free the pilot assembly from the gas line Remove the pilot orifice and replace it with the one provided with the conversion kit Reinstall the pilot assembly by reversing the steps detailed here When reinstalling the ignitor assembly use extreme care to prevent damage and break age Do not apply any leverage to the ignitor assembly while restoring the retainer clip to its original position Pilot A Orifice Assembly Ignitor Assembly Retaining Fi Flare Nut Clip Note If the ignitor is damaged a replacement kit is available order Catalog Number 87L54 Figure 71 All Models Use pipe joint compound or Teflon tape on all pipe fittings before installing ensur
28. channel end of the last Secure Vent SV4 5 vent section in a rigid system in the exact same fashion as any other Secure Vent section Align the dimpled end of the adapter overthe previously installed section or appliance collar adjusting the radial alignment until the four locking dimples of the adapter are aligned with the inlets of the four incline channels of the last vent section or collar Push on the adapter until it fully engages then twist the adapter clockwise running the dimples down and along the incline channels until they seat at the end of the channels Attach the flexible vent to the adapter as fol lows see Figure 45 A Install the Inner Flex Pipe 1 Install the small gear clamp loosely around the inner flexible vent pipe push it back out of the way 2 Apply a bead of Mill Pac Black 700 F high temperature sealant Catalog No 10K81 to the inner adapter collar approximately 1 2 inch from the end 3 Pull and extend the inner flexible vent pipe 4 Slide the inner flex pipe over the adapter collar Ensure the flexible vent pipe completely engages the adapter collar to a distance of 1 3 4 inches from the end and that it is free from damage or tears 9 Slide the gear clamp down and tighten it fully to secure the flexible vent to the adapter inner collar approximately 3 4 inch from the end of the flex 6 Install three screws 120 degrees apart through the flexible vent pipe and into the adapter collar j
29. channels 1 Y I Figure 29 If the vent system extends more than 5 1 5 m above the roof flashing stabilizers may be necessary Additional screws may be used at Section joints for added stability Guide wires may be attached to the joint for additional sup port on multiple joint configurations LENNOX HEARTH PRODUCTS MERIT PLUS DIRECT VENT GAS FIREPLACES MPD33 35 40 45 INSTALLATION INSTRUCTIONS VERTICAL VENT FIGURES TABLES Note Secure Vent rigid vent pipe is shown in the figures Secure Flex flexible vent pipe may also be used Note It is very important that the horizontal inclined run be maintained in a straight no dips and recommended to be in a slightly elevated plane in a direction away from the fireplace of 1 4 rise per foot 20 mm per meter which is ideal though rise per foot run ratios that are smaller are acceptable all the way down to at or near level Note SV4 5VF Secure Vent SF4 5VF Secure Flex firestop spacer must be used anytime vent pipe passes through a combustible floor or ceil ing SV4 5HF Secure Vent SF4 5HF Secure Flex firestop spacer must be used anytime vent pipe passes through a combustible wall Note Two 45 degree elbows may be used in place of one 90 degree elbow The same rise to run ratios as shown in the venting figures for 90 elbows must be followed if 45 degree elbows are used Note An elbow is acceptable as 1 foot of vertical rise exc
30. conversion In Canada THE CONVERSION SHALL BE CAR RIED OUT IN ACCORDANCE WITH THE REQUIREMENTS OF THE PROVINCIAL AUTHORITIES HAVING JURISDICTION AND IN ACCORDANCE WITH THE RE QUIREMENTS OF THE CAN CSA B149 1 INSTALLATION CODE LA CONVERSION DEVRA TRE EF FECTU E CONFORM MENT AUX RE COMMANDATIONS DES AUTORIT S PROVINCIALES AYANT JURIDICTION ET CONFORM MENT AUX EXIGENCES DU CODE D INSTALLATION CAN CSA B149 1 Gas conversion kits are available to adapt your appliance from the use of one type of gas to the use of another These kits contain all the necessary components needed to complete the task including labeling that must be affixed to ensure safe operation Kit part numbers are listed here and the follow ing steps detail the conversion procedure Refer totheinstructions provided with the conversion kit when performing any gas conversion Millivolt SIT Systems Natural Gas To Propane Gas Conversion Kits C wewmass Weoo Millivolt SIT Systems Propane Gas to Natural Gas Conversion Kits Models Catalog No MPDT R 3328 H2010 MPD 4035 H2014 MPD 4540 H2016 Electronic HONEYWELL Systems Natural Gas To Propane Gas Conversion Kits Models Catalog No MPDT R 3328 MPD 4035 MPD 4540 Electronic HONEYWELL Systems Propane Gas To Natural Gas Conversion Kits Models Catalog No MPDT R 3328 MPD 4085 25865 1 MPD 4540 25868
31. required This table shows a 1 V to 5 ratio For every 1 foot of V vertical you are allowed 5 feet of H horizontal run up to a maximum horizontal When using Secure Flex use run of 20 feet Ceiling Firestop Spacer SF4 5VF m An elbow is acceptable as 1 foot of When using Secure Flex use Wall Firestop Spacer SF4 5HF vertical rise except where an elbow is the only vertical component in the system See Figure 39 Figure 32 Top Vent TWO 90 DEGREE ELBOWS WARNING Separate sections of concentric flexible vent pipe may NOT be joined together under any circumstances 17 NOTE DIAGRAMS amp ILLUSTRATIONS ARE NOT TO SCALE LENNOX HEARTH PRODUCTS MERIT PLUS DIRECT VENT GAS FIREPLACES MPD33 35 40 45 INSTALLATION INSTRUCTIONS VERTICAL VENT FIGURES TABLES continued eet meters 84 meters 58 eter Cs ago 2 osm 1 os ro Gap 4 nzw 2 eem 8 9 s oso m mo 589 4 V V4 H H4 40 feet 12 2 m H 8 feet 2 438 meters Max H H4 20 feet 6 096 meters Max Example 1 20 feet of horizontal vent run is needed then 4 feet minimum of V vertical vent will be required This table shows a 1 V to 5 H ratio For every 1 foot of V vertical you are allowed 5 feet of H horizontal run up to a maximum horizontal run of 20 feet Figure 33 Rear Vent THREE ELBOWS H Maximum VMinmum mee
32. res resto o 2 fo res pus 2 7818111 0181271 Pars eus 3 2 Cw pes 2 o 3 2 103 5 8 625 0 0 rw 9 31 9 2 rupe 2 T2 o rwr qs 3 9 T5 fo res eos 3 fos Lus ws 1 5 reos roars 0 fs rus ns o fo 5 fo rw to 2 fe 15 10 o fo o fo mes nef fo Both these vertical vent systems terminate through the roof The minimum vent height above the roof and or adjacent walls is speci fied in ANSI Z223 1 latest edition In Canada the current CAN CSA B1 49 1 installation code by major building codes Always consult your local codes for specific requirements A general guide to follow is the Gas Vent Rule refer to Figure 5 on Page 6 Vertical Straight Installation Figure 20 Determine the number of straight vent sec tions required 4 1 2 114 mm 10 1 2 267 mm 22 1 2 572 mm 34 1 2 876 mm and 46 1 2 1181 mm net section lengths are available see Tables on this page and Pages 35 and 36 Vent Sections Plan the vent lengths so that a joint does not occur at the intersection of ceiling or roof joists Refer to the Vent Section Length Chart RN EUN SV4 5CGV 1 SV4 5FA or SV4 5FB Flashing AND SV4 5SC Storm Collar lt a 1 in 25 4 mm Minimum Clearance to Combustibles SV4 5VF Firestop Spacer Se SOS Ses When using Secure Flex use Firestop Spacer SF4 5
33. terior wall according to the dimensions shown in Figure 9 on page 8 Cut and or frame an opening 10 1 2 x 12 1 8 267 mm x 308mm inside dimensions about this center C Frame ceiling opening If the vertical route is to penetrate ceiling use plumb line to locate the center above the appliance Cutand or frame an opening 10 1 2 x 10 1 2 267 mm x 267 mm inside dimensions aboutthis center refer to Figure 21 on page 15 D Attach vent components to appliance To attach a vent component to the appliance collar alignthe dimpled end overthe collar adjusting the radial alignment until the four locking dimples are aligned with the inlets of the four incline channels on the collar refer to Figure 22 on page 15 Push the vent component against the collar until it fully engages then twist the component clockwise running the dimples down and along the incline channels until they seat at the end of the channels TYPICAL HORIZONTAL VENT INSTALLATION Support Brackets Building Support Framing SV4 5E90 Elbow Ceiling Vertical Rise Firestop Spacer See Figure 24 on page 15 for vertical vent section support Horizontal Inclined Run Ew J J gu NE SV4 5L6 12 24 36 48 SV4 5HT 2 Termination N Exterior a Vent Sections Wall Support bracket spacing every 5 ft 1 52 m SV4 5HT 2 Termination n Exterior KY LPS Fireplace
34. thermopile and the top 1 8 minimum tip of the quick drop out thermocouple should be engulfed in the pilot flame The flame should project 1 25 mm beyond the hood at all three ports see Figure 53 Replace logs if removed for pilot inspection To light the burner turn ON the remote wall switch and rotate the gas valve control knob counterclockwise to the ON position ON will be at the top side of the valve MILLIVOLT Thermocouple Hood Igniter Rod 3 8 Min 9 mm Nozzels Thermopile Figure 53 Electronic Appliance Checkout To light the burner turn ON the unit mounted ON OFF switch or the optional remote wall switch Ensure the igniter lights the pilot The pilotflame should engulftheflame rod as shown in Figure 54 ELECTRONIC 3 8 To 1 2 Inch Proper Flame 9 mm to 13 mm Adjustment Pilot Nozzle Ground Electrode Flame Rod Hot Surface Igniter Figure 54 21 28 LENNOX HEARTH PRODUCTS MERIT PLUS DIRECT VENT GAS FIREPLACES MPD33 35 40 45 INSTALLATION INSTRUCTIONS Step 9 INSTALL VOLCANIC STONE GLOWING EMBERS AND LOGS NOTE Turn off all electricity to the appliance before you install volcanic stone embers and logs DO NOT attempt to install the logs until the appliance installation has been completed the gas line connected and tested for leaks and the initial burner operation has been checked out Step 1 Remove the appliance front doo
35. 1353 40 1 4 1022 40 1 4 1022 Do not insulate the space between the appliance and the area above it Shelf Height see table Shelf Above Fireplace With Rear Venting Figure 8 Shelf Height Minimum Clearances Do not insulate the space between the appliance and the area above it t Shelf Height see table Shelf Above Fireplace With Top Venting NOTE DIAGRAMS amp ILLUSTRATIONS ARE NOT TO SCALE LENNOX HEARTH PRODUCTS MERIT PLUS DIRECT VENT GAS FIREPLACES MPD33 35 40 45 INSTALLATION INSTRUCTIONS Wall Finishes Surrounds Mantels Note Combustible wall finish materials and or surround materials must not be allowed to encroach the area defined by the appliance front face black sheet metal Never allow combustible materials to be positioned in front of or overlapping the appliance face see Figures 65 and 66 on Page 34 Non combustible materials such as surrounds and other appliance trim may be installed on the appliance face with these exceptions they must not cover any portion of the removable glass panel or control compartment Vertical installation clearances to combustible mantels vary according to the depth of the mantel See Figure 9 Mantels constructed of non combustible materials may be installed at any height above the appliance opening however do not allow anything to hang below the fireplace hood Combustible Materials Allowed In Shaded gt 2 Top View Of 12 305
36. 35 and 36 E Support the vertical vent run sections Note Proper venting support is very important The weight of the vent must not be supported by the fireplace in any degree oupport the vertical portion of the venting system every 8 feet 2 4m above the fireplace vent outlet One method of support is by utiliz ing field provided support straps conventional plumber s tape Secure the plumber s tape to theframing members with nails or screws Loop the tape around the vent securing the ends of the tape to the framing If desired sheet metal screws 6 x 1 2 length may be used to secure the support straps to the vent pipe See Figure 24 1 Blocking Support Straps Plumber s tape 8 feet 2 4 m Maximum 1 inch 25 4 mm minimum clearance to combustibles LS Figure 24 15 16 LENNOX HEARTH PRODUCTS MERIT PLUS DIRECT VENT GAS FIREPLACES MPD33 35 40 45 INSTALLATION INSTRUCTIONS F Change vent directionto horizontal inclined run At transition from or to a horizontal in clined run install the SV4 5E45 and SV4 5E90 elbows in the same manner as the straight vent sections The elbows feature a twist section to allow them to be routed about the center axis of their initial collar section to align with the required direction of the next vent run element Twist elbow sections in a clockwise direction only so as to avoid the possiblity of unlocking any ofthe previously connected vent s
37. 5 28 1 668 2 us 29 3 uno Cm 4 28 H 20 feet 6 096 m Max V V4 H H 40 ft 12 192 m Max Example If 20 feet of H horizontal vent run is needed then 4 feet minimum of V vertical vent will be required This table shows a 1 V to 5 H ratio For every 1 foot of V verti cal you are allowed 5 feet of H horizontal run up to a maximum horizontal run of 20 feet An elbow is acceptable as 1 foot of vertical rise except where an elbow is the only vertical component in the system See Figure 39 Figure 34 Top Vent THREE ELBOWS Ceiling Firestop Spacer When using Secure Flex use Ceiling Firestop Spacer SF4 5VF When using Secure Flex use Wall Firestop Spacer SF4 5HF Ceiling Firestop Spacer SV4 5VF Ceiling Firestop Spacer Wall SV4 5VF Firestop Spacer SV4 5HF When using Secure Flex use Ceiling Firestop Spacer SF4 5VF When using Secure Flex use Wall Firestop Spacer SF4 5HF NOTE DIAGRAMS amp ILLUSTRATIONS ARE NOT TO SCALE LENNOX HEARTH PRODUCTS MERIT PLUS DIRECT VENT GAS FIREPLACES MPD33 35 40 45 INSTALLATION INSTRUCTIONS HORIZONTAL OUTSIDE WALL TERMINATION SYSTEM Figures 35 and Figures 39 to 44 on pages 21 to 23 and their associated Horizontal Vent Table illustrate the various horizontal venting configurations that are possible for use with theseappliances Secure Vent pipe applications are shown in these figures Secure Flex pip
38. BLY Optional FBK 250 Module OPT er 1 4 BLOWER 7 1 s Neutral KO Hot Side of Side of Receptacle Receptacle OPTIONAL APPLIANCE MOUNTED ON OFF SWITCH OR OPTIONAL WALL SWITCH OR OPTIONAL THERMOSTAT OR OPTIONAL REMOTE RECEIVER Factory Wired Field Wired Schematic Representation Only Figure 49 NOTE DIAGRAMS amp ILLUSTRATIONS ARE NOT TO SCALE Refer to Section A for millivolt appliances and Section B for electronic appliances The gas valve is set in place and pre wired at the factory on both models A Millivolt Wiring see Figure 47 Millivolt units are not provided with any factory installed controls therefore one of the optional control switches is required to operate the unit ON OFF Wall Switch Unit Mountable ON OFF Switch Thermostat Remote Control oee the fireplace Care and Operation Instruc tions for details using a Unit Mountable ON OFF Rocker Switch with an optional Style View Door mount the Rocker Switch on the door instead of the unit 1 If installing an ON OFF wall switch or ther mostat mount it in a convenient location on a wall near the fireplace 2 Wire the control switch within the millivolt control circuit using the 15 feet of 2 con ductor wire supplied with the unit Note The supplied 15 feet of 2 conductor wire has one end of each conductor con nected to the gas valve circuit and the other end of each conductor p
39. F Square termination SV4 5HT 2 shown TABLE K H H4 H Maximum HMaxmum V Minimum feet meters feet meters teet meters 5 529 2 0 610 1 026 10 904 4 1209 2 648 15 457 182 3 0 914 20 6095 8 2 438 4 28 V H H4 40 feet 12 2 m Max 8 feet 2 438 meters Max H H4 20 feet 6 096 meters Max Example 1 20 feet of horizontal vent run is needed then 4 feet minimum of V vertical vent will be required This table shows a 1 V to 5 H ratio For every 1 foot of V vertical you are allowed 5 feet of H horizontal run up to a maximum horizontal run of 20 feet oee Table 8 on page 21 as an aid in venting component selection for a particular range of exterior wall thicknesses Figure 43 Rear Vent THREE 90 DEGREE ELBOWS When using Secure Flex use Ceiling Firestop Spacer SF4 5VF When using Secure Flex use Wall Firestop Spacer SF4 5HF Ceiling Firestop Spacer SV4 5VF Wall Firestop Spacer SV4 5HF Wall Firestop Spacer SV4 5HF Square termination SV4 5HT 2 shown see Table 8 on page 21 as an aid in venting component Selection for a particular range of exterior wall thicknesses Figure 44 Top Vent THREE 90 DEGREE ELBOWS TABLE L VMinimum 858 58 mars 1520 Elbow Only 0 305 0 610 H 20 feet 6 096 m Max V V4 H 40
40. INSTALLATION INSTRUCTIONS LENNOX MPD Direct Vent MERIT Plus HEARTH PRODUCTS Gas Fireplaces SERIES P N 850014 Rev V 08 2011 MILLIVOLT ELECTRONIC This manual is one of a set of two supporting this product MPDT 3328CNM B MPD 4035CNM B MPDT 3328CNE B MPD 4035CNE B Refer to P N 875014M for Care and Operation Instructions MPDT 3328CPM B MPD 4035CPM B MPDT 3328CPE B MPD 4035CPE B Ce manuel est disponible en francais simplement MPDR 3328CNM B MPD 4540CNM B MPDR 3328CNE B MPD 4540CNE B en faire la demande Num ro de la piece 850014CF MPDR 3328CPM B MPD 4540CPM B MPDR 3328CPE B MPD 4540CPE B MPD 3530CNM B MPD 3530CNE B MPD 3530CPM B MPD 3530CPE B Tested amp Port Portland Listed By Oregon USA US INSTALLER Leave this manual with the appliance CONSUMER Retain this manual for future reference INSTALLATEUR Laissez cette notice avec l appareil CONSOMMATEUR Conservez cette notice pour Please read and understand these instructions consultation ult rieure before starting installation HOT GLASS WILL CAUSE UNE SURFACE VITREE CHAUDE e EL VIDRIO CALIENTE BURNS PEUT CAUSER DES BRULURES CAUSARA QUEMADURAS e DO NOT TOUCH GLASS m LAISSER REFROIDIR LA SURFACE e USTED DEBE NUNCA UNTIL COOLED VITREE AVANT D Y TOUCHER TOCAR EL VIDRIO CALIENTE e NEVER ALLOW CHILDREN e NE PERMETTEZ JAMAIS A UN ENFANT LOS NINOS DEBEN NUNCA TO TOUCH GLASS DE TOUCHER LA SURFACE VITREE TOCAR EL VIDRIO WARNING
41. MPDT 3328 45 64 49 18 7 8 High above the appliance to locate center of the vertical run Cut MPDR 3328 61 53 64 55 and or frame an opening 10 1 2 x 10 1 2 267 mm x 267 mm 24 High MPD 3530 62 53 60 55 inside dimensions about this center mark see Figure 18 mPD 4035 8 60 1 as moder 95 2 Wide MPD 4540 5 59 Top View Front View Right Side View Louvered Front Model Shown 3 76 NOTE Eyebrow hood Rear Sde E d Shown as positioned Framing Concentric Flue Fa p 1 2 13 Spacers eH Ha mm See Note 2 ombustion Air 7 1 190 Gas Inlet either eam side and bottom 6 152 i Spacing See Notes 1 and 2 Optional Electrical Inlet Standoffs Knockout requiring a F rear vent Box either side 1 5 8 42 1 3 8 35 Electrical Inlet 8000200222 2 3 4 x 2 Notes E Y 70 x 51 mm 1 MPD models have a top and rear vent MPDR models SS y Cover Plate with Knockout have a rear vent only MPDT models have a top vent only A A A 2 Collars protrude one inch on MPDT 3328 and MPDR 3328 models a Te CH Tel ley 3 ep 4 MPDT 3928 nan E 08 328 mm 841 755 85 on 48 56 zs vs z 70 59 m swe swe om sm ane arn 9 af 9 3 185 n 4018 7 81 oa va ue ine 2o ra e 9 9 3
42. Millivolt Gas Valve NOTE DIAGRAMS amp ILLUSTRATIONS ARE NOT TO SCALE Electronic Gas Control Valve Inlet Pressure Port o o ON OFF Switch Manifold Pressure Port Figure 2 Honeywell Electronic Gas Valve REQUIREMENTS FOR THE COMMON WEALTH OF MASSACHUSETTS These fireplaces are approved for installation in the US state of Massachusetts if the following additional requirements are met e Install this appliance in accordance with Massachusetts Rules and Regulations 248 C M R e Installation and repair must be done by a plumber or gas fitter licensed in the Com monwealth of Massachusetts e he flexible gas line connector used shall not exceed 36 inches 92 centimeters in length e he individual manual shut off must be a T handle type valve Massachusetts Horizontal Vent Requirements Inthe Commonwealth of Massachusetts hori zontal terminations installed less than seven 7 feet above the finished grade must comply with the following additional requirements A hard wired carbon monoxide detector with an alarm and battery back up must be installed on the floor level where the gas fireplace is installed The carbon monoxide detector must comply with NFPA 720 be ANSI UL 2034 listed and be ISA certified A metal or plastic identification plate must be permanently mounted to the exterior of the building ata minimum height of eight 8 feet above grade and be directly in li
43. N OFF control or thermo stat is to be used mount it in a convenient location on a wall near the fireplace T f an optional control is to be used wire it in the low voltage circuit as shown in Figures 48 and 49 Note The supplied 15 feet of 2 conductor wire has one end of each conductor connected to the gas valve circuit and the other end of each conductor placed loose inside the bottom compartment 8 If the optional control switch is installed turn the appliance mounted ON OFF burner control switch to the OFF position 9 After the wiring is complete replace the cover plate Note The gas valve mounted ON OFF switch is shown in Figures 48 and 49 It is integral With the gas valve and should be set to the ON position WARNING Electronic models of these appli ances are equipped with a three prong grounding plug utilized in connecting the electronic components to the junction box inthe lower compartment This grounding plug provides protec tion against shock hazard and should be plugged directly into the properly grounded three prong receptacle DO NOT cut or remove the grounding prong from the plug Step 6 WIRING OPTIONAL FORCED AIR BLOWER KIT FBK 100 and FBK 200 Kits See Figure 48 on page 25 An electrical outlet box is provided for the installation of the FBK 100 FBK 200 forced air blower kits Electrical power must be provided to this box to operate these blowers Install the blower kits
44. T GAS FIREPLACES MPD33 35 40 45 INSTALLATION INSTRUCTIONS Step 10 REMOVING AND INSTALLING THE GLASS DOOR WARNING Do notattemptto substitute the materials used on these doors or replace cracked or broken glass e Handle this glass with extreme care Glass is susceptible to damage Do not scratch handle roughly while reinstall ing the glass door frame The glass door s of this appli ance must only be replaced as a complete unit as provided by the manufacturer Do not attempt to replace broken cracked or chipped glass sepa rately e Do not attempt to touch the front enclosure glass with your hands while the fireplace is in use WARNING Do not operate appliance with the glass frontremoved cracked or broken AVERTISSEMENT Ne pas utiliser l appareil si le panneau frontal en verre pas en place est craque ou brise Removing the Glass Enclosure Panel see Figure 60 Remove the top louver assembly or radiant panel To access the glass door securing latches first open the lower control compartment door Figure 60 by pushing in simultaneously the left and right top corners of the door the door is hinged at the bottom Remove the bottom compartment door by Sliding the hinge pin located at the door s left Side to the right until it disengages from the left corner post hole Pull the door diagonally to the left away from the fireplace Locate the two 2 lat
45. TERATION MAY VOID THE WARRANTY CERTIFICATION AND LISTINGS OF THIS UNIT LENNOX HEARTH PRODUCTS MERIT PLUS DIRECT VENT GAS FIREPLACES MPD33 35 40 45 INSTALLATION INSTRUCTIONS WARNING Improper installation adjust ment alteration service or maintenance can cause injury or property damage Refer to this manual For assistance or additional information consult a qualified installer service agency or the gas supplier WARNING Failure to comply with these installation instructions willresult in an improperly installed and operating appliance voiding its warranty Any change tothis appli ance and or its operating controls is dangerous WARNING Clothing or other flammable material should not be placed on or near the appliance AVERTISSEMENT On ne devrait pas placer de v tements ni d autres mati res inflammables sur l appareil ni proximit WARNING Any safety screen or guard removed for servicing the appli ance must be replaced prior to operating the appliance AVERTISSEMENT Tout cran ou protecteur retir pour permettre l entretien de appareil doit tre remis place avant de mettre l appareil en marche Note Installation and repair should be done by a qualified service person The appliance should be inspected before use and at least annually by a professional service person More frequent cleaning may be required due to excessive lint from carpeting bed
46. VF Max 40 ft 12 2 m Note Convert inches into metric equivalent SV4 5L6 12 24 36 48 measurement as follows Vent Sections SV4 5L6 Millimeters mm Inches x 25 4 Centimeters cm Inches x 2 54 SV4 5L12 Meters M Inches x 0254 SV4 5L24 22 1 2 SV4 5L36 34 1 2 SV4 5L48 46 1 2 Table 7 Figure 20 14 7 NOTE DIAGRAMS amp ILLUSTRATIONS ARE NOT TO SCALE LENNOX HEARTH PRODUCTS MERIT PLUS DIRECT VENT GAS FIREPLACES MPD33 35 40 45 INSTALLATION INSTRUCTIONS Vertical Offset Installation Analyze the vent routing and determine the quantities of vent sections and number of el bows required Refer to Vertical Vent Figures and Tables on page 14 to select the type of vertical installation desired Vent sections are available in net lengths of 4 1 2 114 mm 10 1 2 267 mm 22 1 2 572 mm 34 1 2 876 mm and 46 1 2 1181 mm Referto the Vent Section Length Chart on page 14 for an aid in selecting length combinations Elbows are available in 90 and 45 configurations Refer to Figure 25 for the SV4 5E45 and SV4 5E90 elbow dimensional specifications Where required a telescopic vent section SV4 5LA may be used to provide the installer with an option in installing in tight and confined spaces or where the vent run made up of fixed length pieces develops a joint in a undesirable location or will not build up to the required length The SV4 5LA Telescopic Vent Section has an effe
47. acturer s instructions and all applicable codes and requirements of the authority having jurisdiction If the information in these instruction is not followed exactly a fire explosion or production of carbon monoxide may result causing property damage personal injury or loss of life The qualified service agency is responsible for the proper installation of this kit The installation is not proper and complete until the operation of the converted appliance is checked as specified in the manu facturer s instructions supplied with the kit qualified service agency performing this installation assumes responsibility for this conversion AVERTISSEMENT Cette trousse de conversion doit tre install e par un technicien agr selon les instructions du fabricant et selon toutes les exigences et tous les codes pertinents de l autorit comp tente Assurez vous de bien suivre les instructions dans cette notice pour r duire au minimum le risque d incendie d explosion ou la production de monoxyde de carbone pouvant causer des dommages mat riels des blessures ou mort Le tecnicien agr est responsable de l installation de cette trousse L installation n est pas ad quate ni compl te tant que le bon fonctionnement de l appareil converti n a pas t v rifi selon les instructions du fabricant fournies avec la trousse Le fournisseur de service qualifi ayant r alis l installation assume les responsabilit s li es la
48. alternate primary heat source when installed in a dwelling Millivolt Models The millivolt appliances are manually controlled and feature a spark igniter piezo that allows the appliance s pilot gas to be lit without the use of matches or batteries This system provides continued service in the event of a power outage Millivolt models come standard with a manually modulated gas valve flame appearance and heat outputcan be controlled atthe gas valve The BTU Input for these appliances is shown in Table 7 Electronic Models Electronic models have a fixed rate gas valve Input of electronic models is shown in Table 7 Input BTU HR Gas Valves all models Input Rate BTU HR Prop Gas MPDT R 3328 17 500 high 17 900 high Millivolt 11 700 low 14 000 low MPD 3530 20 000 high 20 000 high Millivolt 12 800 low 15 200 low 21 000 high 21 000 high 18 500 low 21 500 low MPD 4035 Millivolt MPD 4540 Millivolt 35 peg MPD4035 29 000 high 29 000 high 20 500 low 22 900 low 17 500 20 000 Electronic 27 000 MPD4540 Electronic Table 1 29 000 LENNOX HEARTH PRODUCTS MERIT PLUS DIRECT VENT GAS FIREPLACES MPD33 35 40 45 INSTALLATION INSTRUCTIONS Gas Pressure All Models Tables 2 and 3 show the appliances inlet and manifold gas pressure requirements Inlet Gas Supply Pressure all models 4 5 WC 10 5 WC 1 12 kPa 2 61 kPa 11 0 WC Propane 13 0 WC 3 23 kPa Table 2
49. ame room as the appli ance Toddlers young children and others may be susceptible to accidental contact burns A physical barrieris recommended if there are at risk individuals the house To restrict access to a fireplace or stove install an adjustable safety gate to keep toddlers young children and other at risk individuals out of the room and away from hot surfaces AVERTISSEMENT Les jeunes enfants devraient tre surveill s troitement lorsqu ils se trouvent dans la m me pi ce que l appareil Les tout petits les jeunes enfants ou les adultes peuvent subir des br lures s ils viennent en contact avec la sur face chaude Il estrecommand d installerune barri re physique si des personnes a risques habi tent la maison Pour emp cher l acc s un foyer ou un po le installez une barriere de s cu rit cette mesure emp chera les tout petits les jeunes enfants et toute autre personne a risque d avoir acces a la piece et aux surfaces chaudes Children and adults should be alerted to the hazards of high surface temperature and Should stay away to avoid burns or clothing ignition Les enfants et les adultes devraient tre infor m s des dangers que posent les temp ratures de surface lev es et se tenir distance afin d viter des br lures ou que leurs v tements ne s enflamment DO NOT ATTEMPT TO ALTER OR MODIFY THE CONSTRUCTION OF THE APPLIANCE OR ITS COMPONENTS ANY MODIFICATION OR AL
50. bow The same rise to run ratios as shown in the venting figures for 90 elbows must be followed if 45 degree elbows are used Note It is very important that the horizontal inclined run be maintained in a straight no dips and recommended to be in a slightly elevated plane in a direction away from the fireplace of 1 4 rise per foot 20 mm per meter which is ideal though rise per foot run ratios that are smaller are acceptable all the way down to at or near level Note SV4 5VF Secure Vent SF4 5VF Secure Flex firestop spacer must be used anytime vent pipe passes through a combustible floor or ceiling SV4 5HF Secure Vent SF4 5HF Secure Flex firestop spacer must be used anytime vent pipe passes through a combustible wall WARNING Under no circumstances may separate sections of concentric flexible vent pipe be joined together Venting Components Required for Various Exterior Wall Thick nesses when using Typical Termination Kits Vent Components Required Exterior Wall Thickness inches mm Termination Kit Only 6 to 9 1 4 152 to 235 Termination Kitand 6 Vent Termination Kit and 12 in Vent Section SV4 5L12 16 3 4 to 20 426 to 508 Termination Kit and Tele scopic Section SV4 5L12 11 3 4 to 20 299 to 508 Note See Figure 37 showing wall thickness range Table 8 when using SV4 5HT 2 termination kit H 28 in 711 mm Maximum H Wall Firestop Spacer SV4 5HF 178 mm When using S
51. ches at the top of the control compartmentand disengage them from the door frame bottom vee flange pulling down on their handles to open them Installing the Glass Enclosure Panel see Figure Retrieve the glass door Visually inspect the gasket on the backside of the frame Gasket Surface must be clean free of irregularities and seated firmly Position the door in front of the firebox opening with the bottom of the door held away from the fireplace Figure 60 Hook the top flange of the door frame over the top of the firebox frame Let the bottom of the door frame swing gently in towards the fireplace ensuring that the gasket Seats evenly as the door frame draws shut Fasten the two latches located underneath the firebox floor to the door s vee flange Close both the latches securely Lower Compartment Door and Hinge Step 11 BURNER ADJUSTMENTS Flame Appearance and Sooting Proper flame appearance is a flame that is blue at the base and becomes yellowish orange in the body of the flame When the appliance is first lit the entire flame may be blue and will gradually turn yellowish orange during the first 15 minutes of operation If the flame remains blue or if the flame is orange with evidence of sooting blacktip the air shutter opening may need to be adjusted If the air shutter opening is closed too far sooting may develop Sooting is indicated by black puffs developing at the tips of very long orange f
52. clined vent runs using conventional plumber s tape oee Figure 35 it is very important that the horizontal inclined run be maintained in a straight no dips and recommended to be in a slightly elevated plane in a direction away from the fireplace of 1 4 rise per foot 20 mm per meter which is ideal though rise per foot run ratios that are smaller are acceptable all the way down to at or near level Use a carpenter s level to measure from a constant surface and adjust the support straps as necessary It is important to maintain the required clear ances to combustibles 1 25 mm atall sides for all vertical runs and 3 76 mm at the top 1 25 mm at sides and 1 25 mm at the bottom for all horizontal inclined runs 19 20 LENNOX HEARTH PRODUCTS MERIT PLUS DIRECT VENT GAS FIREPLACES MPD33 35 40 45 INSTALLATION INSTRUCTIONS J Assemble vent run to exterior wall not previously measured locate the center of the vent at the exterior wall Prepare an opening as described in Step B Assemblethe vent system to point where the terminus of the last section is within 7 in 178 mm to 11 1 4 in 286 mm inboard of the exterior surface to which the SV4 5 HT termination is to be attached see Figure 37 f the terminus of the last section is not within this distance use the telescopic vent section SV4 5LA as the last vent section For wall thicknesses greater than that shown in Figure 37 referto Table 8 on page 21 Th
53. ctive length of from 1 1 2 38 mm to 7 1 2 191 mm The SV4 5LA is fitted with a locking inclined channel end identical to a normal vent section component and a plain end with 3 pilot holes Slip the plain end over the locking channel end of a standard SV4 5 vent component the required distance and secure with three screws Maintain a minimum 1 25 mm clearance to combustible materials for all vertical elements Clearances for all horizontal elements are 3 76 mm on top 1 25 mm on sides and 1 25 mm on the bottom A Frame ceiling opening Use a plumb line from the ceiling above the appliance to locate center of the vertical run Cut and or frame an opening 10 1 2 10 1 2 267mm x 267mm inside dimensions about this center mark Figure 21 LS Min 10 1 2 267 mm D 10 1 2 in 267 mm Figure 21 B Attach vent components to appliance Secure Vent SV4 5 direct vent system compo nents are unitized concentric pipe components featuring positive twist lock connections see Figure 19 All of the appliances covered in this document are fitted with collars having locking inclined channels The dimpled end of the vent com ponents fit over the appliance collar to create the positive twist lock connection First Vent Component X Align the dimple four places with the opening of the locking incline channel on appliance collar Twist vent component clockwise to engage and seal LA
54. curing the glass door under the firebox floor Remove the door by tilting it outward at the bottom and lifting it up Set the door aside taking care to protect it from inadvertent damage See Removing Glass Panels on Page 32 4 See Figure 11 Remove the top louvered panel and locate the pressure relief plates Lift the pressure relief plates and remove the cardboard from beneath each plate taking care not to damage the white gasket 5 Remove the log set from the firebox Handle logs carefully to prevent breakage 6 Remove the embers and volcanic stone from the control compartment Pressure Relief Remove cardboard before using appliance Take care not to damage white gasket Figure 11 TYPICAL INSTALLATION SEQUENCE The typical sequence of installation is outlined below however each installation is unique and may result in variations to the steps described see the pages referenced in the following steps for detailed procedures Step 1 FRAMING Page 10 Construct the appliance framing Position the appliance within the framing and secure with nailing brackets IMPORTANT Bend up the appropriate header spacing standoffs for the drywall finish mate rial thickness to be used see Figure 60 page 32 Bend up the outer pair for 1 2 materials and the inner pair for 5 8 materials Bend out the appropriate nailing flanges for the drywall finish material to be used Nailing flanges are provided for flush frami
55. ding material etcetera Itis imperative that control compartments burners and circulating air passageways of the appliance be kept clean Remarque L installation et la r paration devrait tre confi es untechnicien quali fi L appareil devrait faire l objet d une inspection par un technicien professionnel avant d tre utilis et au moins une fois l an par la suite Des nettoyages plus fr quents peuvent tre n cessaires si les tapis la literie et cetera produisent une quantit importante de pous si re Il est essentiel que les compartiments abritant les commandes les br leurs et les con duits de circulation d air de l appareil soient tenus propres Do not use these appliances if any part has been under water Immediately call a qualified professional service technician to inspect the appliance and to replace any parts of the control system and any gas control which have been under water Ne pas utiliser cet appareil s il a t plong m me partiellement dans l eau Appeler un technicien qualifi pour inspecter l appareil et remplacer toute partie du systeme de commande et toute commande qui a t plong e dans l eau IMPROPER INSTALLATION OR USE OF THIS APPLIANCE CAN CAUSE SERIOUS INJURY OR DEATH FROM FIRE BURNS EXPLOSION OR CARBON MONOXIDE POISONING Onlytrim kit s supplied by the manufacturer shall be used in the installation of this ap pliance Seules les trousses de garniture fournies par
56. e may also be used A Horizontal Vent Table sum marizes each system s minimum and maximum vertical and horizontal length values that can be used to design and install the vent components in a variety of applications Both of these horizontal vent systems terminate through an outside wall Building Codes limit or prohibit terminating in specific areas Refer to Figure 8 on page 7 for location guidelines Secure Vent V4 5 direct ventsystem components are unitized concentric pipe components featuring positive twist lock connection refer to Figure 22 on page 15 All of the appliances covered in this document are fitted with collars having locking inclined channels The dimpled end of the vent components fit overthe appliance collarto create the positive twist lock connection A Plan the vent run Analyze the vent routing and determine the types and quantities of sections required 4 1 2 114 mm 10 1 2 267 mm 22 1 2 572 mm 34 1 2 876 mm and 46 1 2 1181 mm net section lengths are available It is recommended that you plan the venting so that a joint does not occur in the ceiling or roof joists Allow for elbows as indicated in Figure 25 on page 16 Maintain a minimum 1 25 mm clearance to combustibles onthe vertical sections Clearances for the horizontal runs are 3 76 mm on top 1 25 mm on sides and 1 25 mm at the bottom B Frame exterior wall opening Locate the center of the vent outlet on the ex
57. e current National Fuel Gas Code ANSI Z223 1 in the USA or the current standards of CAN CSA B149 1 in Canada Ensure clearances are in accordance with local installation codes and the requirements of the gas supplier D gagement conforme aux codes d installa tion locaux et aux exigences du foumis seunde gaz Use only approved vent components see Approved Vent Components on Page 2 These fireplaces must be vented directly to the outside The vent system may not service multiple appliances and must never be connected to a flue serving a solid fuel burning appliance The vent pipe is tested to be run inside an enclosed wall such as a chase There is no requirement for inspection openings in the enclosing wall at any of the joints in the vent pipe Installation of Vent Restrictor A vent restrictor may be needed with this ap pliance install vent restrictor provided in the appliance top flue outlet as shown in Figure 18 MPDT 3328 MPD 3530 MPD 4035 and MPD 4540 or rear flue outlet as shown in Figure 19 MPD 3530 MPD 4035 and MPD 4540 It is held in place by friction only Note The vent restrictor is included in the firebox ON MPD 3530 4035 4540 SERIES MODELS COMBINED TOP AND REAR VENT UNITS TOP VENT SEAL amp COVER PLATE REMOVAL WHEN USING THE TOP VENT OUTSIDE UNIT VENT SEAL PLATE F SECURING SCREWS GASKET CABINET TOP TOP VENT FIREBOX TOP VENT COVER PLATE
58. e propane resistant compounds are used in propane ap plications do not use pipe joint compounds on flare fittings Step 8 Refer to Figure 67 on page 39 A Remove the orifice from the manifold and replace it with the one provided in the kit See the following table for orifice sizes for natural and propane models Figure 72 illustrates the orifice B Retrieve the burner and hold the venturi tube above the orifice Place the shutter adjusting rod in the propane slot of the shutter arm see Figure 64 on page 34 Set the burner assem bly into its position and secure the trapezoidal plate with the two screws previously removed C Reinstall the baffle with the two baffle securing screws Burner Orifice Sizes Elevation 0 4500 feet 0 1372 meters Model Nat Gas Propane drill size inches drill size inches Series MPDT 3328 45 0 0820 0 048 inch MPDR 3328 391 66 99K78e MPD 4035 37 0 1040 0 063 inch 24M10e 21L01 36 0 1065 52 0 0635 18L40e 37000 Standard size installed at factory e Part Cat Number 44 0 0860 55 0 0520 60J80e 191529 MPD 4540 Table 9 NOTE DIAGRAMS amp ILLUSTRATIONS ARE NOT TO SCALE Figure 72 Step 9 Reassemblethe remaining components by reversing the procedures outlined in the preceding steps Step 10 Attach the conversion label provided in the conversion kit next to the rating plate on the appliance Step 11 Turn on gas supply a
59. e vent air intake termination clearances above the high side of an angled roof are as shown in the following chart Termination Heights For Vents Above Flat Or Sloped Roofs Ref NFPA 54 ANSI 2223 1 Root Pen 10 1210 11 12 325 099 11 12 to 12 12 12 12 to 14 12 14 1210 16 12 60 183 16 12 to 18 12 18 12 to 20 12 20 12 1021 12 80 244 Horizontal Vent Termination Clearances Figure 4 Multiple Terminations The horizontal vent termination must have a minimum of 6 152 mm clearance to any overhead combustible projection of 2 1 2 64 mm or less see Figure 8 For projections exceeding 2 1 2 64 mm see Figure 6 For additional vent location restrictions refer to Figure 7 on Page 7 Horizontal Vent Termination Clearances Combustible Projection 2 1 2 inches or less in length Combustible Projection greater than 2 1 2 inches in length Ventilated Soffit Unventilated Soffit 457mm 305 mm Termination Kit Figure 6 NOTE DIAGRAMS amp ILLUSTRATIONS ARE NOT TO SCALE All horizontal terminations may be located as close as 6 152mm to any non combustible and combustible exterior sidewall This distance may be decreased to 2 51mm for non combustible exterior sidewalls only if the SV4 5HT 2 termination is used Termination Kit Note See Figure 37 on Page 20 for the exterior wall recess allowances of the square horizontal termination LENNOX
60. ections 366 Figure 25 1 8 1 8 206 mm disse Swivel War 360 swivel 360 swivel SV4 5E45 SV4 5E90 45 Elbow 90 Elbow Figure 25 G Continue installation of horizontal inclined sections Continue with the installation of the straight vent sections in horizontal inclined run as described in Step C Install support straps every 5 1 52 m along horizontal inclined vent runs using conventional plumber s tape It is very important that the horizontal inclined run be maintained in a straight no dips and slightly elevated plane in a direction away from the fireplace 1 4 per foot 20 mm per meter of horizontal vent Use a carpenter s level to measure from a constant surface and adjust the support straps as necessary It is important to maintain the required clear ances to combustibles 1 25 mm atall sides for all vertical runs and 3 76 mm at the top 1 25 mm at sides and 1 25 mm at the bottom for all horizontal inclined runs H Frame roof opening Identify location for vent at the roof Cut and or frame opening per Roof Framing Chart and Figure 26 Framing Dimensions for Roof 0 12 10 1 2in 10 1 2 in 267 mm 267 6 12 10 1 2 in 12 in 26 mm 305 mm 12 12 10 1 2in 17 3 4 in 26 mm 451 mm Figure 26 I Install the roof flashing Extend the vent sections through the roof structure Install the roof flashing over the vent section and posi tion s
61. ecure Flex use Wall Firestop Spacer SF4 5HF Only the square termination SV4 5HT 2 may be used see Table 8 as an aid in venting component selection for a particular range of exterior wall thicknesses Figure 38 Rear Vent NO ELBOWS TABLE F HMaxmum v Minimum teet meters feet meters 3 0 914 Elbow Only When using Secure Flex use Wall Firestop Spacer SF4 5HF Wall Firestop Spacer SV4 5HF Square termination SV4 5HT 2 shown See Table 3 as an aid in venting component selection for a particular range of exterior wall thicknesses Figure 39 Top Vent ONE 90 DEGREE ELBOW ELBOW CONNECTION AT APPLIANCE TABLE G Fen meters feet s pago w 6 s asm 3 7m 6 086 a Example If 20 feet of horizontal vent run is needed then 4 feet minimum of V meters vertical vent will be required 0 305 0 610 This table shows a 1 V to 5 H ratio For every 1 foot of V vertical you are allowed 5 feet of H horizontal run up to a maximum horizontal run of 20 feet 0 914 1 219 V H 40 feet 12 2 m Max H 20 ft 6 096 m Max Ceiling Firestop Spacer SV4 5VF p V 52 Wall Firestop Spacer SV4 5HF When using Secure Flex use Ceiling Firestop Spacer SF4 5VF When using Secure Flex use Wall Firestop Spacer SF4 5HF Square termination SV4 5HT 2 shown see Table 8 as an aid in venting com
62. ed Secure Vent Components Listed Secure Vent Components CatNo Model Description SV4 5CGV 1 Vertical Termination Cap High Wind 77175 SV4 5LA Telescopic Length Slip Section 2 to 7 1 2 rigid SV4 5CTS Chase Top Termination SV4 5E45 45 Degree Elbow Square 77L77 SV4 5E90 90 Degree Elbow Description H1968 SV4 5HT 2 Horizontal Square Vent Sections Termination with Rigid Firestop Spacer H2246 and Adaptor 74L61 H2152 H4687 Ref Instr 750207M SV4 5CTS B Chase Top Termination Square Black Ref Instr 750207M SV4 5CTS TC Chase Top Termination 10K81 SFMP Mill Pac Black High Square Terra Cotta Temperature Sealant Ref Instr 750207M Manus 89140 SFMP 12 Mill Pac Black High SVA 5HTSS Horizontal Small Square Temperature Sealant Termination with Bulk 12 pack Firestop Spacer 96K80 99102 SV4 5HRK14 Horizontal Riser Kit 14 and Adapter 74 61 Ref Instr 750146M 99L03 SV4 5HRK36 Horizontal Riser Kit 36 Ref Instr 750146M SV4 5HTSSL Horizontal Small Square 96K93 SV4 5SU Support Strap Long Termination with H5816 SV4 5 Through Wall Shield Kit TWSK10 used to shield the direct vent pipe from blown insulation Ref Instr 50247M Firestop Spacer 96K80 The following flashings come packaged with a storm collar and Adapter 74L61 SV4 5HGS 1 Termination Guard Square 1 pack 8 SV4 5F Flat Roof Flashing 77179
63. en the gas lines are tested and leak free be sure to rinse off the leak testing solution Step 8 VERIFYING APPLIANCE OPERATION With gas line installed run initial system checkout before closing up the front of the unit Follow the pilot lighting instructions provided in the Care and Operation Instruc tions For piezo igniter location on millivolt appliances see Figure 47 on Page 25 Note Lighting Instructions are also found on the literature tag tied to the gas piping next to the gas valve To access the tag open the lower control compartment door Figure 52 by pushing in simultaneously the left and right top corners of the door The door is hinged at the bottom Remove the bottom compartment door by sliding the hinge pin located at the door s left side to the right until it disengages from the left corner post hole When first lighting the appliance it will take a few minutes for the line to purge itself of air Once purging is complete the pilot and burner willlight and operate as indicated in the instruc tion manual NOTE DIAGRAMS amp ILLUSTRATIONS ARE NOT TO SCALE oubsequent lighting of the appliance will not require such purging Inspect the pilot flame remove logs if necessary handling carefully Millivolt Appliance Checkout The pilot flame should be steady not lifting or floating Flame should be blue in color with traces of orange at the outer edge The top 3 8 10 mm at the pilot generator
64. ept where an elbow is the only vertical component in the system See Figure 39 on page 21 Max 40 ft Ceiling 12 2 m Firestop Spacer SV4 5VF When using Secure Flex use Ceiling Firestop Spacer SF4 5VF A Vent Restrictor as shown in Figure 18 on Page 13 must be used in this application Figure 30 Top Vent STRAIGHT TABLE A lt gt Ceiling EA HMaximum VMinimum Firestop Spacer SV4 5VF feet meters feet meters 2 1 Los A ES ore Res use 4 29 2 eiling Firestop Spacer SF4 6 1829 3 51068 28 V H 40 feet 12 2 meters Max 8 feet 2 4 meters Max Ratio V to H ratio is 1 2 This table shows a 1 V to 2 H ratio For every 1 foot of V vertical you are allowed 2 feet of H horizontal run up to a maximum horizontal run of 8 feet Example If 8 feet of H horizontal vent run is needed then 4 feet minimum V vertical vent will be required Figure 31 Rear Vent ONE 90 DEGREE ELBOW TABLE B Lm di 8568 9 incus 5 PU Elbow Only 8 524 1 Ceili lt e Se PM LI 0 305 0 610 0 914 1 219 SV4 5VF 6 096 STI V 40 feet 12 2 m Max wal H 20 feet 6 096 meters Max Firestop Spacer ONT Example If 20 feet of H horizon tal vent run is needed then 4 feet minimum of V vertical vent will be
65. er adjustment for your installation CAUTION DO NOT abuse glass door by striking or slamming shut Air Shutter Adjustment Guidelines Amount of Primary Air Flame Air Shutter Color Adjustment If air shutter is Flame will Air shutter closed too far be orange gap should be increased Glass Door Frame Bottom Vee flange Air shutter gap should be decreased Flame will be blue If air shutter is Firebox Floor open too far Figure 60 NOTE DIAGRAMS amp ILLUSTRATIONS ARE NOT TO SCALE LENNOX HEARTH PRODUCTS MERIT PLUS DIRECT VENT GAS FIREPLACES MPD33 35 40 45 INSTALLATION INSTRUCTIONS WARNINGS o Airshutter adjustment should only be performed by a quali fied professional service tech nician e Ensure front glass panel are in place and sealed during adjustment CAUTIONS e Soot will be produced if the air shutter is closed too much Any damage due to sooting resulting from improperly setting the air shutter is not covered under the warranty The air shutter door and nearby appliance surfaces are hot Exercise caution to avoid injury while adjusting flame appearance Refer to Figures 61 62 and 63 for proper flame appearance Toadjustthe flame rotate the adjustment rod toward the back or toward the front of the fireplace rod located in the lower control area Position the air shutter to the factory setting as shown in the table in Fig
66. ft 12 192 m Max Example 1 20 feet of horizontal vent run is needed then 4 feet minimum of V vertical vent will be required This table shows a 1 V to 5 H ratio For every 1 foot of V vertical you are allowed 5 feet of H horizontal run up to a maximum horizontal run of 20 feet An elbow is acceptable as 1 foot of vertical rise except where an elbow is the only verti calcomponentin the system See Figure 39 NOTE DIAGRAMS amp ILLUSTRATIONS ARE NOT TO SCALE 23 24 LENNOX HEARTH PRODUCTS MERIT PLUS DIRECT VENT GAS FIREPLACES MPD33 35 40 45 INSTALLATION INSTRUCTIONS VERTICAL OR HORIZONTAL VENTING USING SECURE FLEX KITS AND COMPONENTS Secure Flex venting kits and components may be used in any venting application where rigid Secure Vent SV4 5 direct vent components can be used All restrictions clearances and allowances that pertain to the rigid piping apply to the flexible venting Secure Flex kits may not be modified also under no circumstances may separate sections of flex pipe be joined together Secure Flex kits may be added to the end of a vent run made up of rigid Secure Vent SV4 5 vent sections provided that doing so does not violate any of the venting length height routing horizontal to vertical ratio re quirements or clearance considerations detailed in this manual Secure Flex kits come with an included adapter that can be fitted to the appliance collar or the inclined
67. hould be placed inthe gaps between the flame peaks and Should be positioned so they do not impinge the flames Step 5 Position the individual logs as shown Figures 57 58 and 59 Logs should be placed in the order shown All logs that have notches to fit over the grate tines should be positioned with these notches directly against the grate Handle logs carefully to prevent breakage Proper log placement is critical to encourage outstanding flame appearance and prevent sooting When positioned properly as shown logs will be positioned between flame peaks and will not impinge any flames Refer to Figure 57 for MPD 3328 Series ap pliances to Figure 58 for MPD 3530 Series appliances and to Figure 59 for MPD 4035 and MPD 4540 Series appliances REFERENCE Firebox Accessories Parts 88L53 Bag of Glowing Embers Bag of Decorative 80142 ETS Volcanic Stone NOTE DIAGRAMS amp ILLUSTRATIONS ARE NOT TO SCALE WARNING e DO NOT attempt to install the logs until the appliance installa tion has been completed the gas line connected and tested for leaks and the initial burner operation has been checked out e The size and position of the log set was engineered to give the appliance a safe reliable and attractive flame pattern Any attempt to use a different log set in the fireplace will void the war ranty and willresultin incomplete combustion sooting and poor flame quality e Logs get very hot and will re
68. ice d entretien qualifi ou par le qualified installer service agency or the gas supplier fournisseur de gaz LENNOX HEARTH PRODUCTS MERIT PLUS DIRECT VENT GAS FIREPLACES MPD33 35 40 45 INSTALLATION INSTRUCTIONS TABLE OF CONTENTS al Keg ONG 2 Introduction 2 General Information 2 Requirements for the Commonwealth of Massachusetts 4 New York City Approval 4 Cold Climate Insulation 5 Manufactured Home Requirements 5 Location 5 Vent Termination Clearances 6 Appliance and Vent Clearances 8 Pre Installation Steps 10 Typical Installation Sequence 10 Detailed Installation Steps 10 Step 1 Framing 10 Fireplace and Framing Specifications 11 Step 2 Routing Gas Line 12 otep 3 Preparing Appliance Vent Collar 13 Step 4 Installing Vent System 13 Vertical Termination Systems 14 Vent Section Length Chart 14 Vertical Vent Tables and Figures 17 Horizontal Termination System 19 Horizontal Vent Tables and Figures 21 Venting Using Flexible Vent 24 Step
69. is table lists the additional venting components needed in addition to the termination and adapter for a particular range of wall thicknesses K Attach termination adapter Attach the adapter adapter SV4 5RCH provided with the termination to the vent section or telescoping vent section elbow or appliance collar as shown in Figure 36 in the same manner as any SV4 5 vent component refer to Step E L Install Firestop Spacer at exterior wall When using the square termination install SV4 5HF Secure Vent SF4 5HF Secure Flex Firestop Spacer overthe opening atthe exterior side oftheframing long side up with the 3 inch spacer clearance at the top as shown in Figure 36 and nail into place The Firestop Spacer may also be installed over the opening at the interior side of the framing M Install the desired termination 1 Install the square termination SV4 5HT 2 or SV4 5HTSS For the last step from out side the exterior wall slide the collars of the termination onto the adapter the outer over the outer and the inner inside the inner until the termination seats against the exterior wall Surface to which it will be attached Orient the housing of the termination with the arrow pointed upwards Secure the termination to the exterior wall The horizontal termination must not be recessed into the exterior wall or siding by more than the 1 1 4 32 mm as Shown in Figure 37 SVHRK Snorkel Cap The snorkel cap i
70. ispositifs de contr le du foyer Une tiquette de s curit doit amp tre coll e sur la plaque de l interrupteur contr lant l allumage du foyer voir Figure A ou surlethermostat mural voir Figure B et le cas ch ant sur le boitier de la t l commande Figure C Pour achever l instal lation correcte de ce foyer proc dez comme suit avec les tiquettes adh sives enlangues trang res fournies avec les instructions d utilisation et d entretien 1 Rep rez l interrupteur ou le thermostat mural qui contr le le foyer v rifiez que l interrupteur contr le le fonctionnement du foyer en le faisant basculer de Marche Arr t et vice versa Nettoyez soigneusement la plaque murale de l interrupteur ou le thermostat mural pour liminer la poussi re et les traces de graisse ou d huile Collez l tiquette sur la surface de la plaque de l interrupteur mural qui contr le le foyer Figure A ou du thermostat mural Figure B Choisissez la langue qui est principalement parl e dans la r sidence du propri taire En cas de doute collez l tiquette en anglais 2 Si une t l commande est utilis e pour contr ler le foyer nettoyez la soigneusement pour liminer la poussi re et les traces de graisse ou d huile Collez l tiquette sur le boitier de la t l commande Figure C Choisissez la langue qui est principalement parl e dans la r sidence du propri taire En cas de doute collez l tiquette en anglais 3 Si vou
71. it envelope e 1 Hood inside firebox INTRODUCTION The Millivolt appliances have a millivolt gas control valve with piezo ignition system If any optional accessories that will require electrical power are to be installed the electrical power must be provided at the time of appliance installation The Electronic appliances are designed to op erate on natural or propane gas An electronic intermittent pilot ignition system provides safe efficient operation External electrical power is required to operate these units These vented gas fireplace heaters are sealed combustion air circulating gas fireplaces de signed for residential applications Approved Vent Components These fireplaces are designed tested and listed for operation and installation with the following vent components only e Secure Vent Direct Vent System Compo nents manufactured by Security Chimneys International e Secure Flex Flexible Vent Components manufactured by Security Chimneys Inter national and e Z FLEX Model GA Venting Systems listed to UL177 and ULCS635 manufactured by Flexmaster Canada Limited Use only the correct size venting 4 1 2 inner and 7 1 2 outer These approved vent system components are labeled for identification DO NOT use any other manufacturers vent components with these appliances GENERAL INFORMATION WARNING Young children should be care fully supervised when they are in the s
72. laced loose inside the bottom compartment A CAUTION In millivolt systems do NOT connect a Wall Switch to a 120V power supply B Electronic Wiring see Figures 48 amp 49 The electronic gas valve has an integrated ON OFF burner control switch One of the follow ing optional controls also may be used ON OFF Wall Switch Thermostat Remote Control see fireplace Care and Operation Instructions for details Note Electronic models must be connected to the main power supply 1 Route a 3 wire 120Vac 60Hz 1ph power Supply to the appliance junction box 2 Remove the electrical inlet cover plate from the side of the unit by removing the plate s securing screws see Figure 13 Page 77 3 Remove the cover plate knockout then feed the power supply wire through the knockout opening and into the unit junction box 4 See Figures 48 amp 49 Connect the black power supply wire to the lower outlet s red pigtail lead Connect the white power supply wire to the outlet s common terminal 5 Connect the ground supply wire to the pigtail lead attached to the outlet s green ground screw 29 26 LENNOX HEARTH PRODUCTS MERIT PLUS DIRECT VENT GAS FIREPLACES MPD33 35 40 45 INSTALLATION INSTRUCTIONS Note Remote receiver should be located in the Wall or if installed in the control compartment pulled all the way forward and completely to the left or right against the corner posts 6 If wall mounted O
73. lames Sooting results in black deposits forming on the logs appliance inside surfaces and on exterior surfaces adjacent to the vent termination oooting is caused by incomplete combustion in the flames and lack of combustion air enter ing the air shutter opening To achieve a warm yellowish orange flame with an orange body that does not soot the shutter opening must be adjusted between these two extremes Air Shutter Adjustment Guidelines e f there is smoke or soot present first check the log set positioning to ensure that the flames are not impinging on any of the logs If the log set is properly positioned and a sooting condition still exists then the air shutter opening should be increased e hemoreoffsets inthe vent system the larger the air shutter opening will need to be e An appliance operated with the air shutter opened too far may have flames that appear blue and transparent These weak blue and transparent flames are termed anemic e Propane models may exhibit flames which candle or appear stringy If this is present and persists adjust the air shutter to a more closed position then operate the appliance for a few more minutes to ensure that the Only doors certified with the appliance shall be used Seules des portes certifi es pour cet appareil doivent tre utilis es flame normalizes and the flames do not appear sooty The following chart is provided to aid you in achieving the correct air shutt
74. le fabricant doivent tre utilis es pour l installation de cet appareil These appliances comply with National oafety Standards and are tested and listed by OMNI Test Laboratories Inc Report No 116 F 13 4 to ANSI 721 88 in Canada CSA 2 33 and CAN CGA 2 17 M91 in both USA and Canada as vented gas fireplace heaters Both millivolt and electronic versions of these appliances are listed by OMNI Test Laboratories for installation in bedrooms and Manufactured Homes Misc Codes Standards The Installation mustconform to local codes in the absence of local codes with the National Fuel Gas Code ANSI 2 1 NFPA 54 latest edition In Canada the current CAN CSA B149 1 installation code The appliance when installed must be electri cally grounded and wired in accordance with local codes or in the absence of local codes with the National Electrical Code ANSI NFPA 70 latest edition or the Canadian Electrical Code CSA C22 1 latest edition Provide adequate clearances around air open ings and adequate accessibility clearance for service and proper operation Never obstruct the front or back openings of the appliance These appliances are designed to operate on natural or propane gas only The use of other fuels or combination of fuels will degrade the performance of this system and may he dangerous These fireplaces are designed as supplemental heaters Therefore it is advisable to have an
75. main hotup to one hour after gas supply is turned off Handle only when logs are cool Turn off all electricity to the appliance before you install grate volcanic stone vermiculite embers and logs e This appliance is not designed toburnwood Any attemptto do so could cause irreparable damage to the appliance and prove hazardous to your safety e If logs are not installed according to the log installation instructions flame impingement and improper combustion could occur and result in soot and or excessive production of carbon monoxide CO a colorless odorless toxic gas Figure 57 LENNOX HEARTH PRODUCTS MERIT PLUS DIRECT VENT GAS FIREPLACES MPD33 35 40 45 INSTALLATION INSTRUCTIONS MPD 3328 LOG PLACEMENT Log Description Stamped Log Rear 39 12 Log Left 39 1 4 Log Top Center 39 13 Log Top Left 39 3 6 Log Top Right 39 4 Log Right 39 2 Catalog Number for the entire log set 24M15 Position the individual logs as shown below Logs should be placed in the order shown Position the rear log on the brackets at the rear of the firebox with the log s notches directly over the brackets Position the right log log no 3 by inserting the pin from the rear log into the hole on its upper end Place the left log and then the smaller left and right top logs All logs that have notches to fit over the grate tines should be positioned with these notches directly against the grate
76. nation SV4 5HT 2 pum Square Termination Adapter SV4 5RCH lt 1 1 4 Maximum Recess of the Square Termination into Exterior Finishing Material Venting Connection and Exterior Wall Recessing of the Horizontal Square Termination SV4 5HT 2 For thicknesses greater than 10 inches see Table 8 Stucco Figure 37 Horizontal terminations have been designed to perform in a wide range of weather conditions Our terminations meet or exceed industry standards When selecting the locations of your horizontal terminations do not place the termination where water from eaves and adjoining rooflines may create a heavy flow of cascading water onto the termination cap If the cap must be placed where the possibility of cascading water exists it is the responsibility of the builder to direct the water away from the termination cap by using gutters or other means Take care to carefully follow the installation instructions for the termination including the use of silicone caulking where required NOTE DIAGRAMS amp ILLUSTRATIONS ARE NOT TO SCALE LENNOX HEARTH PRODUCTS MERIT PLUS DIRECT VENT GAS FIREPLACES MPD33 35 40 45 INSTALLATION INSTRUCTIONS HORIZONTAL VENT FIGURES TABLES Note Secure Vent components rigid vent pipe and terminal are shown in the figures Secure Flex components flexible vent pipe and terminal may also be used Note Two 45 degree elbows may be used in place of one 90 degree el
77. nce with the curent ANSI Z223 1 NFPA 54 National Fuel Gas Codes A vent shall not terminate directly above a sidewalk or paved driveway which is located between two single family dwellings and serves both dwellings Only permitted if veranda porch deck or balcony is fully open on a minimum 2 sides beneath the floor e2 inch Clearance to Non Combustibles for SV4 5HT 2 Only Figure 7 NOTE DIAGRAMS amp ILLUSTRATIONS ARE NOT TO SCALE LENNOX HEARTH PRODUCTS MERIT PLUS DIRECT VENT GAS FIREPLACES MPD33 35 40 45 INSTALLATION INSTRUCTIONS MINIMUM CLEARANCES TO COMBUSTIBLES Appliance And Vent Clearances The appliance is approved with zero clearance to combustible materials on all sides as detailed in Table 5 with the following exception When the unit is installed with one side flush with a wall the wall on the other side of the unit must not extend beyond the front edge of the unit In addition when the unit is recessed the side walls surrounding the unit must not extend beyond the front edge of the unit see Figure 3 Hearth Extension A hearth extension is not required with this appliance If a hearth extension is used do not block the lower control compartment door Any hearth extension used is for appearance only and does not have to conform to standard hearth extension installation requirements Shelf Height To provide for the lowest possible shelf surface use the alternate rear vent outlet the venting a
78. nd test for gas leaks refer to page 27 NOTES LENNOX HEARTH PRODUCTS MERIT PLUS DIRECT VENT GAS FIREPLACES MPD33 35 40 45 INSTALLATION INSTRUCTIONS 41 LENNOX HEARTH PRODUCTS MERIT PLUS DIRECT VENT GAS FIREPLACES MPD33 35 40 45 INSTALLATION INSTRUCTIONS Lennox Hearth Products reserves the right to make changes at any time without notice in design l materials specifications and prices and also to discontinue colors styles and products Consult your local distributor for fireplace code information HEARTH PRODUCTS Printed in U S A 2002 2011 Lennox Hearth Products P N 850014M Rev V 08 2011 1508 Elm Hill Pike Suite 108 Nashville TN 37210
79. ne with the horizontal termination The sign must read in print size no less than one half 1 2 inch in size GAS VENT DIRECTLY BELOW KEEP CLEAR OF ALL OBSTRUCTIONS NEW YORK CITY NEW YORK MEA Installation of these fireplaces are approved for installation in New York City in the US state of New York LENNOX HEARTH PRODUCTS MERIT PLUS DIRECT VENT GAS FIREPLACES MPD33 35 40 45 INSTALLATION INSTRUCTIONS COLD CLIMATE INSULATION For cold climate installations seal all cracks around your appliance with noncombustible material and wherever cold air could enter the room It is especially important to insulate outside chase cavity between studs and under floor on which appliance rests if floor is above ground level Gas line holes and other open ings should be caulked or stuffed with unfaced fiberglass insulation If the fireplace is being installed on a cement slab in cold climates a sheet of plywood or other raised platform can be placed underneath to prevent conduction of cold transferring to the fireplace and into the room It also helps to Sheetrock inside surfaces and tape for maximum air tightness and caulk firestops MANUFACTURED HOME REQUIREMENTS This appliance may be installed in an aftermarket permanently located manufactured home and must be installed in accordance with the manu facturer s instructions and the Manufactured Home Construction and Safety Standard Title 24 CFR Part 3280 in the United State
80. ng 1 2 inch and 5 8 inch framing depths see Figure 12 Step 2 ROUTING GAS LINE Page 12 Route gas supply line to appliance location Step 3 PREPARING APPLIANCE VENT COLLAR MPD 3530 4035 4540 models with combined top rear vent Page 13 Step 4 INSTALLING VENT SYSTEM Page 13 Install the vent system and exterior termination Step 5 FIELD WIRING Page 25 a Millivolt Appliances Install the operat ing control switch not factory provided If installing the optional forced air circulating blower bring in electrical service line b Electronic Appliances Field wire and install operating control switch Step 6 WIRING OPTIONAL FORCED AIR BLOWER KIT Page 26 Step 7 CONNECTING GAS LINE Page 26 Make connection to gas supply Step 8 VERIFYING APPLIANCE OPERATION Page 27 Step 9 INSTALL LOGS VOLCANIC STONE AND GLOWING EMBERS Page 28 Step 10 INSTALLING GLASS DOOR ASSEM BLY Page 32 Step 11 BURNER ADJUSTMENTS Page 32 Adjust burner to ensure proper flame appear ance Step 12 HOOD INSTALLATION Page 34 Step 13 ATTACHING SAFETY IN OPERATION WARNINGS Page 35 NOTE DIAGRAMS amp ILLUSTRATIONS ARE NOT TO SCALE DETAILED INSTALLATION STEPS Step 1 FRAMING Frame the appliance as illustrated in Figures 13 and 14 on Pages 10 and 11 Figure 14 applies to corner framing installations only All framing details must allow for a minimum clearance to combustible framing members
81. ng the gas supply Asediment Trap is recommended to prevent moisture and debris in the gas line for damaging the valve TEST ALL CONNECTIONS FOR GAS LEAKS FACTORY AND FIELD WARNING Never use an open flame to check for leaks LENNOX HEARTH PRODUCTS MERIT PLUS DIRECT VENT GAS FIREPLACES MPD33 35 40 45 INSTALLATION INSTRUCTIONS Optional Gas Flex Line Connector 3 8 NPT x 3 8 4 Flare Fitting 3 0 Flex Tu 1 2 x 3 8 Flare Shut Off Valve d KO aC bing L tt roe 1 2 x 3 8 Reducer 3 8 Shut Off Valve Figure 51 Gas Connection Piezo Ignitor Millivolt Gas Valve Showing Piezo Ignitor Location Figure 52 Turn on gas supply and test for gas leaks us ing a gas leak test solution also referred to as bubble leak solution Note Using a soapy water solution is an effec tive leak test solution butitis not recommended because the soap residue that is left on the pipes fittings can result in corrosion over time A Light the appliance refer to the lighting instructions label inthe control compartment or in the Care and Operation Instructions manual B Brush all joints and connections with the gas leak test solution to check for leaks If bubbles are formed or gas odor is detected turn the gas control knob off pilot on to the OFF position Either tighten or refasten the leaking connection then retest as described above C Wh
82. nterruptor opera la chimenea encendi ndola y apag ndola Limpie bien la placa del interruptor o el termostato de pared para quitar el polvo y aceite Pegue la etiqueta enlasuperficiedelaplacadelinterruptor que controla la chimenea Figura A o en el termostato de pared Figura B Seleccione el idioma que m s se habla en la casa Si no sabe cu l es use la etiqueta en ingl s 2 Si se usa un control remoto para controlar la chimenea encuentre el transmisor y l mpielo bien para quitar el polvo y aceite Pegue la etiqueta en la superficie del transmisor Figura Seleccione el idioma que m s se habla en la casa Si no sabe cu l es use la etiqueta en ingl s 3 Sino puede encontrar las etiquetas s rvase llamar a Lennox Hearth Products o al distribuidor de Lennox Hearth Products m s cercano para recibir etiquetas de instrucciones de seguridad adicionales gratuitas Juego de etiquetas de repuesto N de cat H8024 LENNOX HEARTH PRODUCTS 1 800 9 LENNOX Nota La etiqueta en ingl s es transparente con texto rojo Las etiquetas en franc s y espa ol son negras con texto blanco DIAGRAMAS DE ETIQUETAS DE SEGURIDAD ADVERTENCIA Vidrio y chimenea EXTREMADAMENTE CALIENTES Riesgo de quemaduras graves Siempre mantenga a los ni os alejados de la chimenea Figure C 39 LENNOX HEARTH PRODUCTS MERIT PLUS DIRECT VENT GAS FIREPLACES MPD33 35 40 45 INSTALLATION INSTRUCTIONS INSTALLATION ACCESSORIES List
83. or additional requirements for installations in the state of Massachusetts in the USA e Thegas supply line should Not be connected to the appliance until Step 6 Page 25 e Apipejointcompound rated for gas should be used onthe threaded joints Ensure propane resistant compounds are used in propane applications Be very careful that the pipe compound does not get inside the pipe e tis recommended to install a sediment trap in the supply line as close as possible to the appliance Appliances using Propane should have a sediment trap at the base of the tank e Check with local building official for local code requirements i e are below grade penetrations of the gas line allowed etc IMPORTANT If propane is used be aware that if tank size is too small i e under 100 Ibs if this is the only gas appliance in the dwelling Ref NPFA 58 there may be loss of pressure resulting in insufficient fuel delivery which can result in sooting severe delayed ignition or other malfunctions Any damage resulting from an improper installation such as this is not covered under the limited warranty LENNOX HEARTH PRODUCTS MERIT PLUS DIRECT VENT GAS FIREPLACES MPD33 35 40 45 INSTALLATION INSTRUCTIONS Step 3 PREPARING APPLIANCE VENT COLLAR MPD 3530 4035 4540 models with combined top rear vent Each of the unit s two vent collars are sealed with a cover plate and a seal plate and gasket The cover and seal plate and gaske
84. or flex without flex vent Square Term for flex with 12 inch 305 mm compressed flex vent Square Term for flex with 18 inch 457 mm compressed flex vent Square Term for flex with 24 inch 610 mm compressed flex vent Square Term for flex with 36 inch 914 mm compressed flex vent Square Term for flex with 48 inch 1219 mm compressed flex vent Small Square Termination for flex with 12 in 305 mm of compressed flex vent Ref Instr 750204M Small Square Termination for flex with 18 in 457 mm of compressed flex vent Ref Instr 750204M Small Square Termination for flex with 24 in 610 mm of compressed flex vent Ref Instr 750204M Small Square Termination for flex with 36 in 914 mm of compressed flex vent Ref Instr 750204M Small Square Termination for flex with 48 in 1219 mm of compressed flex vent Ref Instr 750204M Horizontal Small Square Termination for flex without flex vent Ref Instr 750204M Only for use with MPDT R 3328 and MPD 3530 models All compressed flex vents can be expanded up to two times NOTE DIAGRAMS amp ILLUSTRATIONS ARE NOT TO SCALE 37 38 LENNOX HEARTH PRODUCTS MERIT PLUS DIRECT VENT GAS FIREPLACES MPD33 35 40 45 INSTALLATION INSTRUCTIONS GAS CONVERSION KITS WARNING This conversion kit shall be installed by a qualified service agency in accordance with the manuf
85. ove 4500 feet contact your gas supplier or qualified service technician Deration At higher elevations the amount of BTU fuel value delivered must be reduced by either using gas that has been derated by the gas company or by changing the burner orifice to a smaller size as regulated by the local authorities having jurisdiction and by the USA National Fuel Gas Code NFPA 54 ANSI Z223 1 latest edition or in Canada the CAN CSA B149 1 codes latest edition Install the appliance according to the regulations of the local authorities having jurisdiction and in the USA the National Fuel Gas Code NFPA 54 ANSI 7223 1 latest edition or in Canada the CAN CSA B149 1 latest edition Flame breadth height and width will dimenish 496 for every 1 000 feet of altitude Burner Orifice Sizes Elevation 0 4500 feet 0 1372 meters Model Nat Gas Propane Series drill size inches drill size inches MPDT 3328 145 0 0820 0 048 inch MPDR 3328 39L66e 99K78e 44 0 0860 55 0 0520 60J80e 19152 437 0 1040 0 063 inch MPD 4035 248110 21L01e 36 0 1065 52 0 0635 MPD 4540 18 40 37G00e Standard size installed at factory Table 4 e Part Cat Number Gas Valve Diagrams See Figure for Millivolt models and Figure 2 For Electronic Models Main Gas Control Knob Pilot Adjustment OFF PILOT ON Manifold Pressure Tap HI LO Variable Flame Height Adjustment Inlet Pressure Tap Figure 1 SIT
86. ponent selection for a particular range of exterior wall thicknesses Figure 40 Top Vent ONE 90 DEGREE ELBOW ELBOW CONNECTION NOT DIRECTLY AT APPLIANCE NOTE DIAGRAMS amp ILLUSTRATIONS ARE NOT TO SCALE 22 LENNOX HEARTH PRODUCTS MERIT PLUS DIRECT VENT GAS FIREPLACES MPD33 35 40 45 INSTALLATION INSTRUCTIONS HORIZONTAL VENT FIGURES TABLES continued Ceiling x Firestop Spacer SV4 5VF Se CD l Wall Firestop Spacer SV4 5HF V pi When using Secure Flex use Ceiling Firestop Spacer SF4 5VF When using Secure Flex use Wall Firestop Spacer SF4 5HF quare termination SV4 5HT 2 shown Figure 41 Rear Vent TWO 90 DEGREE ELBOWS Wall Firestop Spacer SV4 5HF Wall Firestop Spacer When using Secure Flex use SV4 5HF Ceiling Firestop Spacer SF4 5VF When using Secure Flex use Wall Firestop Spacer SF4 5HF Ceiling Firestop Spacer SV4 5VF Square termination SV4 5HT 2 shown See Table 8 on page 21 as an aid in venting component selection for a particular range of exterior wall thicknesses Figure 42 Top Vent TWO 90 DEGREE ELBOWS TABLE H 0 MBEH Maximum H Maximum V Minimum feet meters feet meters feet meters 8 529 2 0 810 1 10 6089 4 28 2 0610 15 457 6 1 829 20 6 096 8 2438 28 V H 40 feet 12 2 m Max 8 feet 2 438 mete
87. r see Removing Glass Encloslure panel on page 32 Step 2 Install decorative volcanic stone oprinklethe decorative volcanic stone in a pleas ing pattern The volcanic stone should be placed directly on top of the firebox bottom along the front and to the back at the right and left sides of the burner Position any optional ceramic fiber liners before placing the stone Logs should be positioned after the volcanic stone Note This appliance is provided with enough Glowing Embers for several applications do not feel compelled to use all that is in a new bag For best glowing effect replace the ember material annually Replacement Glowing Em bers are available Catalog Number 88153 Glowing Embers Separate into Quarter Size separate Pieces Bag of Glowing Embers rockwool Figure 55 Step 3 Separate the Glowing Ember Rockwool into pieces about the size of a quarter Figure 55 Keep the pieces fluffed up not matted Distribute these pieces over the front surface of the burner as shown in Figure 56 Do not use more than is neces sary When properly positioned the Glowing Embers will cover approximately 65 of the front burner and with no appreciable gaps or openings Ensure that the main burner ports remain uncovered by the ember material Figure 56 Step 4 Placement of Logs All top logs that rest on lower logs do so over notches indents or nubs Properlog placement is critical to prevent sooting Logs s
88. rs Max H4 20 feet 6 096 meters Max Example 1 20 feet of H horizontal vent run is needed then 4 feet minimum of V vertical vent will be required This table shows a 1 V to 5 H ratio For every 1 foot of V vertical you are allowed 5 feet of H horizontal run up to a maximum horizontal run of 20 feet see Table 8 on page 21 as an aid in venting component selection for a particular range of exterior wall thicknesses H Maximum Fees 5 ete Elbow Only 1524 1 0 305 3 048 2 0 610 2 3 0 914 6 096 4 V H 40 feet 12 2 m Max H 20 ft 6 096 m Max Example If 20 feet of H horizontal vent run is needed then 4 feet minimum of V vertical vent will be required This table shows a 1 V to 5 H ratio For every 1 foot of V vertical you are allowed 5 feet of H horizontal run up to a maximum horizontal run of 20 feet An elbow is acceptable as 1 foot of vertical rise except where an elbow is the only vertical component in the system See Figure 39 NOTE DIAGRAMS amp ILLUSTRATIONS ARE NOT TO SCALE LENNOX HEARTH PRODUCTS MERIT PLUS DIRECT VENT GAS FIREPLACES MPD33 35 40 45 INSTALLATION INSTRUCTIONS HORIZONTAL VENT FIGURES TABLES continued Wall Firestop Spacer SV4 5HF When using Secure Flex use Ceiling Firestop Spacer SF4 5VF Ceiling When using Secure Flex use Firestop Spacer Wall Firestop Spacer SF4 5HF SV4 5V
89. s designed to be fitted into a basement window box The SVHRK cap is for use with flex vent The vertical distance betweenthe inlet and outlet of the cap is 28 in 711 mm pipe IMPORTANT The venttermination is hot while in operation and for a period of time following the use of the fireplace To prevent contact with hot surfaces we recommend the use of a Termina tion Guard See Page 36 This can be purchased at your local dealer Firestop Spacer SV4 5HF shown on the exterior side of the wall It may also be installed on the interior side SV4 5HT 2 Termination Adapter SV4 5RCH Note Centerline of Vent Piping is NOT the Same as the Centerline of the Framed Opening See Figure 13 on page 11 for Min Distance to Base 6 to 48 inch Vent Section of Appliance Telescopic vent section Elbow or Appliance Collar Base of Appliance Figure 36 Installing the Square Horizontal Termination SV4 5HT 2 Use silicone caulking to seal the top and sides of the termination up to the underlayment stucco or masonry wall surface Maximum wall thickness 10 in 254 mm 5 Exterior Surface of Siding Interior Surface of Finished Wall Exterior Surface of Framing 6 in to 9 1 4 in 152 to 235 mm Maximum Extent of Vent Run Sections Relative to Exterior Surface of Framing Siding Last Vent Section Use Telescopic Vent Section SV4 5LA If x Necessary SV4 5HT 2 Square Termi
90. s or the Standard for Installation in Mobile Homes CAN CSA Z240 MH Series in Canada Cet appareil peut tre installe comme du mat ri el d origine dans une maison pr fabriqu e E U seulement ou mobile et doit tre install selon les instructions du fabricant et conform ment la norme Manufactured Home Constructions and oafety Title 24 CFR Part 3200 aux Unis ou la norme Can CSA 7240 S rie MM Maisons mobiles au Canada 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 unless a certified kit is used Cet appareil doit tre utilis uniquement avec le type de gaz indiqu sur la plaque signal tique Cet appareil ne peut tre converti d autres gaz sauf si une trousse de conversion est utilis e CAUTION Ensure that the cross mem bers are not cut or weakened during installation The structural integrity of the manufactured home floor wall and ceiling roof must be maintained CAUTION This appliance must be ground ed to the chassis of the manufactured home in accordance with local codes or in the absence of local codes with the National Electrical Code ANSI NFPA 70 latest edition or the Canadian Electrical Code CSA C22 1 latest edition S REAR VENT APPLICATION SO S 7 1 N TOP VENT APPLICATION APPLICATION APPLICATION TOP VENT TOP VENT APPLICATION RECESSED INSTALLATION TOP VENT
91. s ne trouvez pas les tiquettes veuillez appeler Lennox Hearth Products ou votre distribu teur Lennox Hearth Products local pour recevoir gratuitement des tiquettes suppl mentaires tiquettes de remplacement n cat H8024 LENNOX HEARTH PRODUCTS 1 800 9 LENNOX Remarque Le texte anglais est rouge sur un support transparent Le texte francais et espagnol est blanc sur un Support noir DIAGRAMMES DES TIQUETTES DE S CURIT AVERTISSEMENT _Vitre et foyer EXTREMEMENT CHAUDS Risque de br lures graves Toujours tenir les enfants l cart du foyer m LENA EXTREMELY HOT glass and fireplace Risk of Severe Burns NOTE DIAGRAMS amp ILLUSTRATIONS ARE NOT TO SCALE COLOCACION DE ADVERTENCIAS DE SEGURIDAD EN OPERACION oe requiere que las etiquetas de instrucciones de seguridad incluidas con la chimenea se coloquen en el punto de operaci n y control de la misma Se debe colocar una etiqueta de instrucciones de seguridad en la placa del interruptor de pared desde el cual se enciende y se apaga la chimenea ver la Figura A o en el termostato de pared ver la Figura B y en el transmisor de control remoto Figura si se usa Para completar correctamente la instalaci n de esta chimenea encuentre las etiquetas adhesivas multiling es incluidas con las instrucciones de cuidado y operaci n y haga lo siguiente 1 Identifique el interruptor o el termostato de pared quecontrolala chimenea verifique queeli
92. structions provided with the kit Using a Torx T20 remove and discard the three pressure regulator mounting screws Remove the pres sure regulator spring poppet diaphragm and bushing Discard all removed components Ensure the rubber gasket installed on the back of the replacement pressure regulator is properly positioned and install the new pressure regula tor using the new screws supplied with the kit Tighten screws to 25 In Ib torque Pressure Regulator A D E VAT 7 M VEZ Remove These Components Figure 68 Step 5 Attach manometer to the manifold side pressure test fitting and verify manifold pres Sure reads 3 5 inches water column 0 87 kPa for natural gas and 10 0 inches water column 2 49 kPa for propane gas Step 6 Refer to Figure 69 and remove the pilot hood assembly to access the hexed pilot Orifice Remove and replace the orifice with the one provided with the kit Orifice Figure 69 NOTE DIAGRAMS amp ILLUSTRATIONS ARE NOT TO SCALE Electronic Appliances Step 7 Honeywell Electronic Valves See Figure 70 and the instructions provided with the kit Remove the slotted cap screw o ring pressure regulating adjusting screw and spring Retain all parts for possible later use Install new components from the kit Black cap and red spring for propane gas units Silver cap and stainless steel spring for natural gas units Before installing the cap
93. t must be removed from the vent collar being used Refer to Figure 18for top vent usage and Figure 17 for rear and the following steps to prepare the appropriate collar for use From the vent collar being used remove the four screws securing the vent seal plate and gasket Remove and discard the seal plate and gasket When the top vent collar is being used from inside the firebox loosen the two screws in the keyhole slots of the cover plate and remove the remaining two cover plate securing screws Remove and discard the cover plate Reinstall and securely tighten all four screws When the rear vent collar is being used from inside the firebox remove the two screws se curing the lintel to the rear wall of the firebox then remove the lintel Remove the four cover plate securing screws Remove and discard the cover plate Reinstall and securely tighten all four cover plate screws Re secure the lintel to the rear wall of the firebox WARNING Failure to reinstall and securely tighten cover plate screws could resultinleakage offlue products into the living space Ventcover plate and vent seal cap must remain securely in stalled on unused vent collar Failure to do so could result in leakage of flue products into living space Step 4 INSTALLING VENT SYSTEM These instructions should be used as a guideline and do not supersede local codes in any way Install venting according to local codes these instructions th
94. ther vent component to a length of vent run align the dimpled end overthe inclined channel end of the previously installed section adjusting the radial alignment until the four locking dimples are aligned with the inlets of thefourincline channels ofthe previous section NOTE DIAGRAMS amp ILLUSTRATIONS ARE NOT TO SCALE Push the vent component against the previous section until it fully engages then twist the component clockwise running the dimples down and along the incline channels until they seat at the end of the channels This seating position is indicated by the alignment of the arrow and dimple as shown in Figure 23 D Install firestop spacer at ceiling When using Secure Vent use SVA 5VF firestop spacer at ceiling joists when using Secure Flex use SF4 5VF firestop spacer If there is living space above the ceiling level the firestop spacer must be installed on the bottom side of the ceiling If attic space is above the ceiling the firestop spacer must be installed on the top side of the joist Route the vent sections through the framed opening and secure the firestop spacer with 8d nails or other appropriate fasteners at each corner Remember to maintain 1 25 mm clearance to combustibles framing members and attic or ceiling insulation when running vertical chimney sections Attic insulation shield 96K94 may be used to obtain the required clearances indicated here See installation accessories table on pages
95. ting the vent system from the rear of the appliance when using the appliance rear vent install vent restrictor in the rear vent of the fireplace outlet on MPD 3530 4035 4540 series models in any installation that has a vertical vent run in excess of three feet 0 914 meters If needed install the restrictor orientated as shown either from inside or outside the unit in the inner fireplace collar INNER FIREPLACE COLLAR APPLIANCE REAR VENT OUTLET RESTRICTOR Figure 19 13 LENNOX HEARTH PRODUCTS MERIT PLUS DIRECT VENT GAS FIREPLACES MPD33 35 40 45 INSTALLATION INSTRUCTIONS VERTICAL TERMINATION SYSTEMS ROOF oee Figure 20 and Figures 30 through 32 on Page 17 and their associated Vertical Vent Tables which illustrate the various verti cal venting configurations that are possible for use with these appliances Secure Vent pipe applications are shown in these Figures Secure Flex pipe may also be used A Vertical Vent VENT SECTION LENGTH CHART Nominal Section Length inches Net Section Lenath inches 41 2 10 1 2 22 1 2 34 1 2 46 1 Height of Vent Number of Vent Sections 4 oss Coste to 1 N VENT SECTION LENGTH CHART Nominal Secti T Length inches 12 24 36 48 fo mes 1 1481 51401010101981 150 5 o o o ts ji 1545 1285 1 o o 3 js 1605 P8378 o 2 o o 3 5 pasas o o o s o fs 151010
96. to Secure Flex terminations only DO NOT substitute Secure Vent terminations or the Secure Vent adapter for Secure Flex compo nents The collars of Secure Flexterminations and adapters have a different circumference than that used with the Secure Vent pipe Additionally Secure Flex components have an extended length center tube for use in attaching the flexible vent LENNOX HEARTH PRODUCTS MERIT PLUS DIRECT VENT GAS FIREPLACES MPD33 35 40 45 INSTALLATION INSTRUCTIONS Step 5 FIELD WIRING A CAUTION The ground supply lead must be connected to the wire attached tothe green ground screw located on the outlet box see wiring diagrams Failure to do so will result in a potential safety hazard The appli ance must be electrically grounded in accordance with local codes or in the absence of local codes the National Electrical Code ANSI NFPA 70 latest edition in Canada the current CSA C22 1 Canadian Electrical Code CAUTION Label all wires prior to discon nection when servicing controls Wiring errors can cause improper and dangerous operation ATTENTION Au moment de l entretien des commandes tiquetez tous les fils avant de les d brancher Des erreurs de c blage peuvent entrainer un fonc tionnement inad quat et dangereux Verify proper operation after servicing S assurer que l appareil fonctionne ad quatement une fois l entretien termin WIRING DIAGRAM MILLIVOLT GAS VALVES THERMOPILE APPLIANCE
97. ttached to the top vent should be routed ina way to minimize obstructions to the space above the appliance Do not insulate the space between the appliance and the area above it see Figure 8 The minimum height from the base of the appliance to the underside of combustible materials used to construct a utility shelf in this fashion is shown in Figure 8 The appliance should be mounted on a fully supported base extending the full width and depth of the unit The appliance may be located on Or near conventional construction materials However if installed on combustible materials such as carpeting vinyl tile etc a metal or wood barrier covering the entire bottom surface must be used MINIMUM CLEARANCES Inches millimeters 1 2 in 13 0 0 from Spacers Or Dimples 1 2 in 13 0 0 from Spacers Or Dimples 6 Note 3 in 75 mm above any horizontal inclined vent component From Bottom of Unit To Ceiling Note See Page 10 Step 1 for clearance requirements to the nailing flange located at each side of the unit and any screw heads adjacent to il Combustible Shelf Height Inches millimeters Top Vent With One 90 Degree Elbow Rear Vent Straight Out The Back SecueFex Secure Vent Secure Fiex MPDT 3328 3328 44 2 1130 46 1 4 1175 33 1 4 845 33 1 4 845 3580 4512 181 48 1 4 1226 35 1 4 895 35 1 4 895 MPD 4035 MPD 4540 91 1 2 1308 93 1 4
98. ture and debris in the line from damaging the valve These appliances are equipped with a gas flex line for use where permitted in connecting the unit to the gas line A gas flex line is provided to aid in attaching the direct vent appliance to the gas supply The gas flex line can only be used where local codes permit Refer to Figure 57 for flex line description The flex line is rated for both natural and propane gas A manual Shut off valve is also provided with the flex line The gas control valve is located in the lower control compartment To access the valve open the lower control compartment door see Figure 52 by pushing in the right top corner of the door The door is hinged at the bottom Remove the bottom compartment door by sliding the hinge pin located at the door s left side to the right until it disengages from the left corner post hole Pull the door diagonally to the left away from the fireplace The millivolt control valve has a 3 8 10mm NPT thread inlet port The electronic control valve has a 1 2 13 mm NPT thread inlet portand is fitted with a 1 2 3 8 13 x 10mm NPT fitting Secure all joints tightly using appropriate tools and sealing compounds ensure propane resistant compounds are used in propane applications All codes require a shut off valve mounted in the supply line The orientation of the Shut off valve should face the front Figure 57 illustrates two methods for connecti
99. uch that the vent column rises vertically use carpenters level Figure 27 Nail along perimeterto secure flashing or adjust roofing to overlap the flashing edges attop and sides only and trim where necessary Sealthe top and both sides of the flashing with waterproof caulking Figure 27 J Install the storm collar Install the storm collar supplied with the flashing over the vent flashing joint See Figure 28 Loosenthe storm collar screw Slide collar down until it meets the top of the flashing Tighten the adjusting screw Apply non combustible caulking or mastic around the circumference of the joint to provide a water tight seal NOTE DIAGRAMS amp ILLUSTRATIONS ARE NOT TO SCALE Figure 28 K Install the vertical termination The final step involves installation of the SV4 5CGV 1 Vertical Termination Extend the vent sections to the height as shown in the Vertical vent ter mination section on page 5 The SV4 5CGV 1 Vertical Termination Figure 29 installs in the exact same fashion as any other Secure Vent section Align the termination over the end of the previously installed section adjusting the radial alignment until the four locking dimples of the termination are aligned with the inlets of the four incline channels ofthe last vent section Pushthetermination down until itfully engages thentwistthetermination clockwise running the dimples down and along the incline channels until they seat at the end of the
100. ure 58 NOTE DIAGRAMS amp ILLUSTRATIONS ARE NOT TO SCALE LENNOX HEARTH PRODUCTS MERIT PLUS DIRECT VENT GAS FIREPLACES MPD33 35 40 45 INSTALLATION INSTRUCTIONS MPD 4035 AND MPD 4540 LOG PLACEMENT Log Description Stamped er dua cp 8 ah r3 CE dada idt ON ET Log Top Right 39 11 ae Catalog Number for the entire log set 24M25 Position the individual logs as shown below Logs should be placed in the order shown Position the center log on the burner first then place the glowing embers as shown in Figure 56 Place the rear log both the right and left and then the smaller left and right top logs All logs that have notches to fit over the grate tines should be positioned with these notches directly against the grate All top logs that rest on lower logs do so over flattened mounting faces in the bottom logs Proper log and twig placement Is critical to encourage outstanding flame appearance and prevent sooting ew xc s sege E VS 4 B cr 2 2 F n ei xx b i b 73543495 a porre te d 8 i L rrp TRE is m 4 d E 1 r Lin F am T e 7 DIEA n r a E EF M gh Wo DER ELE Figure 59 NOTE DIAGRAMS amp ILLUSTRATIONS ARE NOT TO SCALE LENNOX HEARTH PRODUCTS MERIT PLUS DIRECT VEN
101. ure 64 Light appliance follow lighting procedure on lighting label in control compartment or in the Care and Operation Instructions Allow the burner to operate for at least 15 minutes while observing the flame continu ously to ensure that the proper flame ap pearance has been achieved Ifthe following conditions are present adjust accordingly e f flame appears weak or sooty adjust the air shutter incrementally to a more open position until the proper flame appearance is achieved e f flame remains blue adjust the air shutter incrementally to a more closed position until the proper flame appear ance is achieved Leave the control knob OFF PILOT ON in the ON position and the burner ON OFF switch and remote switches if applicable in the OFF postion When satisfied that the burner flame appear ance is normal reinstall the lower control compartment door then proceed to finish the installation ESSE Il SANS TES SALE s CE TREE S aT Te TNT ts te Mad q 4 ma AN ue EXTA Figure 61 MPD 3328 MODEL Wake e E Ex ene NER Ra e A D 121 733 NE lt Figure 62 MPD 3530 MODEL A ah a ranted Le a pe E ME E v a RTS wie Hh RE Y v n Figure 63 MPD 4035 AND MPD 4540 MODEL NOTE DIAGRAMS amp ILLUSTRATIONS
102. ust be installed on the top side of the joist Route the vent sections through the framed opening and secure the firestop spacer with 8d nails or other appropriate fasteners at each corner Remember to maintain 1 25 mm clearance to combustibles framing members and attic or ceiling insulation when running vertical chimney sections NOTE DIAGRAMS amp ILLUSTRATIONS ARE NOT TO SCALE G Support the vertical run sections On the vertical run support the venting sys tem every 8 feet 2 4m above the fireplace vent outlet with field provided support straps Plumber s tape Attach the straps to the vent pipe and secure to the framing members with nails or screws See Figure 24 on page 15 H Change vent direction Attransition from or to ahorizontal inclined run install the SV4 5E45 and SV4 5E90 elbows in the same manner as the straight vent sections The elbows feature atwist section to allow them to be routed about the center axis of their initial collar section to align with the required direction of the next vent run element Twist elbow sections in a clockwise direction only so as to avoid the possiblity of unlocking any of the previously connected vent sections See Figure 25 on page 16 l Continue installation of horizontal inclined sections Continue with the installation of the straight vent sections in horizontal inclined run as described in Step E Install support straps every 5 ft 1 52 m along horizontal in
103. ust below the gear clamp to provide additional security to the connection B Install the Outer Flex Pipe 1 Install the large gear clamp loosely around the outer flexible vent pipe push it back out of the way NOTE OUTER PIPE IS PULLED AWAY TO SHOW THE DETAIL OF THE INNER PIPE Apply ONLY MIL PAC BLACK HIGH TEMPERATURE SEALANT Catalog No 10K81 to the outside surface of both collars of the adapter be especially careful to fill the grooves of the outer collar to be covered by the flexible pipe and slide flexible pipe over inner and outer adapter collars 1 3 4 in 44 mm Flexible Pipe and Adapter Outer Collar Overlap Adapter SV4 5RF FLEX VENT SECURING SCREW 3 PLACES EQUALLY SPACED JUST BELOW GEAR CLAMP CLAMPS 1 3 4 in 44 mm Flexible Pipe and Adapter Inner Collar Overlap SECURING SCREW 3 PLACES EQUALLY SPACED JUST BELOW GEAR CLAMP Attach Adapter to Appliance Figure 45 2 Apply a bead of Mill Pac Black 700 F high temperature sealant Catalog No 10K81 to the outer adapter collar to the grooves of the collar which extend approximately 1 inch from the end and to the flat surface approximately 1 3 8 inches from the end 3 Pull and extend the outer flexible vent pipe 4 Slide the outer flex pipe over the adapter collar Ensure the flexible vent pipe completely engages the adapter collar to a distance of 1 inches from the end and that it is free from damage or tears 5

Lennox Hearth MPD-3530CNM-B Indoor Fireplace User Manual

Contents

Download Pdf Manuals

Related Search

Related Contents