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Majestic  •  MER36MN, MER42MN Installation Manual  •  2599-980 Rev. B  •  5/23

E.  Hearth Extension

F.  Decorative Barrier Front Dimensions for 

Finishing

A  hearth  extension  is  not  required  with  these  models. 

Refer  to  Section  3  for  clearances  and  information 

regarding vinyl flooring restrictions.

1 in. MAX

NON-COMBUSTIBLE 

FINISHING MATERIAL

(TOP EDGE)

DECORATIVE BARRIER FRONT

FRONT FACE OF FIREPLACE

Figure 10.12  Overlap Fit Decorative Barrier Front

Finishing materials 1 in. maximum thick.

Stop finishing material flush with opening.

DECORATIVE BARRIER FRONT

NON-COMBUSTIBLE 

FINISHING MATERIAL

6 IN. MAXIMUM 

THICKNESS

NON-COMBUSTIBLE 

FINISHING MATERIAL

6 IN. MAXIMUM 

THICKNESS

Figure 10.11   Inside Fit Decorative Barrier Front 

Non-Combustible Finishing material between 1 and 6 in. thick.

Only decorative barrier fronts certified for use with this ap

-

pliance model may be used. Contact your dealer for a list 

of decorative barrier fronts that may be used.  

Decorative Barrier Front Fit Types

•   Inside Fit as shown in Figure 10.12.  Decorative barrier 

front fits inside appliance opening. 

•    Overlap fit as shown in Figure 10.13.  Decorative bar

-

rier front is installed on top of finishing material.

Decorative Barrier Front Finishing Methods

1.  Finish material installed up to appliance opening.  
  A. Finish material 1 inch thick or less:  Use with Over

-

lap fit fronts.  Finishing strips not required. See Figure 

10.13.  

  B. Finish material 0-6 inch thick: Use this method with 

Inside fit fronts.  Finishing strips not required. See Fig

-

ure 10.14.  

2.  Finishing strips required. Shipped with appliance. See 

Figure 10.16. 

  A. Finish material 1-6 inch thick:  Use this method with 

overlap fronts installed as inside fit.  See Figure 10.15.

A table showing the fit option (Overlap or Inside) for each 

available decorative barrier front for this appliance is in

-

cluded for each finishing method (1.A, 1.B, 2.A). 

Summary of Contents for MER36MN

Page 1: ...ed installer service agency or the gas supplier WARNING FIRE OR EXPLOSION HAZARD Failure to follow safety warnings exactly could result in serious injury death or property damage Models This appliance...

Page 2: ...Termination Minimum Clearances 26 C Vent Terminal Clearances 28 D Use of Elbows 29 E Vent Diagrams 30 5 Vent Clearances and Framing A Vent Clearances to Combustibles 39 B Wall Penetration Framing Fire...

Page 3: ...pe ___________________________ Was a conversion performed ___________________________ Leak check performed and inlet pressure verified ___________________________ Verified proper air shutter setting f...

Page 4: ...h materials are those consisting entirely of steel iron brick tile concrete slate glass or plasters or any combination thereof Materials that are reported as passing ASTM E 136 Standard Test Method fo...

Page 5: ...s fu eled heating appliance or equipment The sign shall read in print size no less than one half 1 2 in in size GAS VENT DIRECTLY BELOW KEEP CLEAR OF ALL OB STRUCTIONS Inspection The state or local ga...

Page 6: ...and space for access See Section 9 Gas Information Provisions for optional heat management system If Passive Heat will be installed consider location of discharge opening in relation to venting and ot...

Page 7: ...hat are able to withstand these conditions For additional finishing guidelines see Section 10 Surface temperatures will vary due to factors such as ceiling height room size finishing materials and ins...

Page 8: ...exceeds the manufacturers maximum allowable opera ng temperatures iden ed in the TV s technical speci ca ons Contact the TV s manufacturer directly if you cannot locate this informa on or have ques on...

Page 9: ...unted at angle TV Wall Bracket Appliance E E PASSIVE HEAT DISCHARGE OPENING PASSIVE HEAT DISCHARGE OPENING WIRE MESH A B C C B A Appliance Opening Appliance Opening D D C B A ITEM MINIMUM DIMENSIONS D...

Page 10: ...es disclaims any responsibility for and the warranty will be voided by the following actions Installation and use of any damaged appliance or vent system component Modification of the appliance or ven...

Page 11: ...1 2 851 G 40 7 8 1038 H 16 406 Location Inches Millimeters I 2 1 8 54 J 50 1 8 1273 K 2 1 16 52 L 8 5 16 211 M 41 13 16 1062 N 35 3 8 899 O 17 11 16 449 P 11 3 16 284 Location Inches Millimeters A 48...

Page 12: ...15 16 mm 1003 695 913 38 121 875 913 H Minimum Combustible Mantel Height at 12 Inch Mantel Depth No Passive Heat I Minimum Combustible Mantel Height at 12 Inch Mantel Depth with Passive Heat Installe...

Page 13: ...40 84 875 914 H Minimum Combustible Mantel Height at 12 Inch Mantel Depth No Passive Heat I Minimum Combustible Mantel Height at 12 Inch Mantel Depth with Passive Heat Installed J Bottom of Appliance...

Page 14: ...l Height at 12 Inch Mantel Depth No Passive Heat I Minimum Combustible Mantel Height at 12 Inch Mantel Depth with Passive Heat Installed J Bottom of Appliance to Top of Bottom Surround MER36MN ESSENCE...

Page 15: ...mbustible flooring or hearth material above top of bottom surround Gap between bottom of decorative front and top of bottom surround must be maintained for proper air flow A B Barrier Mesh Integral to...

Page 16: ...ent clearance for heat management systems venting Refer to Figure 3 6 for Heat Zone Gas and Heat Out Gas heat management systems Refer to Figures 3 11 3 13 for information regarding fram ing when the...

Page 17: ...micals then a replace model designed specif ically for outdoor installation is recommended to avoid oxidation Changes in surface nish due to outdoor environment may occur When installed in areas prone...

Page 18: ...ary requirements for elevated hearth Refer to instructions included with cabinet system G H E A B C D MER36MN IN 51 42 72 See Section 10 Mantel Projections mm 1295 1067 1829 MER42MN IN 55 7 8 49 79 mm...

Page 19: ...CAP 2 X 4 3 1 2 IN Figure 3 9 DVP TRAP1 Exception 2 x 4 Construction Top Vent DVP TRAP1 Exception DVP90ST 5 IN MIN For installations that are top vented and horizontally terminated with a 90 degree el...

Page 20: ...42MN Inches 10 42 1 8 22 49 32 0 0 1 2 Millimeters 254 1070 559 1245 813 0 0 13 Adjust framing dimensions for interior chase sheathing such as sheetrock C Add 12 inches for rear venting with one 90 de...

Page 21: ...of framing Front Discharge Air conveyed into the room through one front discharge slot ROOM CEILING 1 1 2 IN 2 X 4 FRAMING 2 IN MIN TV 1 2 IN X 1 2 IN WIRE MESH CHASE CEILING REQUIRED WITHIN 3 IN OF...

Page 22: ...ach side of appliance ROOM CEILING 1 1 2 IN 2 X 4 FRAMING PASSIVE HEAT DISCHARGE OPENING 0 3 IN CHASE CEILING ZONE DISCHARGE OPENING CHASE CEILING ZONE CHASE CEILING REQUIRED WITHIN 3 IN OF TOP OF OPE...

Page 23: ...nches Secure mesh to top of framing Open Top Discharge Both sides and the top are open allowing air to be conveyed into the room Mesh screen required for front discharge or open top discharge passive...

Page 24: ...m which heat is discharged such as convection slots passive heat registers heat zone registers etc Refer to Section 6 B for Heat Management options allowed for this appliance Chases should be construc...

Page 25: ...ambient temperature of 70 F Consult the manufacturer s flooring specifications to ensure compatibility NOTICE Clearances that do not meet the minimum guidelines could result in damage or buckling to t...

Page 26: ...er sidewalk deck patio etc Listed cap shields available Contact your dealer Local codes or regulations may require different clearances Hearth Home Technologies assumes no responsibility for the impro...

Page 27: ...Clearances continued Figure 4 4 Measure Horizontal and Vertical Termination Clearance to Trapezoid Portion of Cap OVERHANG C E WALL C and E dimensions are defined in Figure 4 5 Figure 4 3 H Measure H...

Page 28: ...ombustion air inlet to any other appliance termination mechanical or non mechanical 9 in min 229 mm min 12 in min 305 mm min I clearance to a mechanical powered air supply inlet All mechanical air int...

Page 29: ...I V E L E N G T H Y X X X DVP Pipe Effective Length Rise Run Inches Millimeters Inches Millimeters DVP4 4 102 2 3 4 70 DVP6 6 152 4 1 4 108 DVP12 12 305 8 1 2 216 DVP24 24 610 17 432 DVP36 36 914 25 1...

Page 30: ...igure 4 8 If venting configuration differs from the vent diagrams on the following pages Figure 4 11 4 18 these rules also apply SUBTRACT 3 ft from the total H measurement for each 90 elbow installed...

Page 31: ...t Components document included in manual bag assembly for information on effective length of pipe components Horizontal terminations are measured to the outside mounting surface flange of termination...

Page 32: ...m 4 ft 1 2 m 20 ft 6 1 m V1 H1 40 ft 12 2 m Maximum H1 20 ft 6 1 m Maximum MER36MN V1 Minimum H1 Maximum Elbow Only Not Allowed 6 in 152 mm 7 in 178 mm 1 ft 305 mm 11 in 279 mm 1 1 2 ft 457 mm 10 ft...

Page 33: ...Maximum H1 H2 20 ft 6 1 m Maximum V1 1 ft 305 mm Minimum MER42MN V1 Minimum H1 H2 Maximum Elbow only Not Allowed 6 in 152 mm Not Allowed 1 ft 305 mm 2 ft 610 mm 2 ft 610 mm 4 ft 1 2 m 3 ft 914 mm 6 ft...

Page 34: ...in 152 mm 3 ft 914 mm 6 in 152 mm 2 ft 610 mm 1 ft 305 mm 6 ft 1 8 m 1 ft 305 mm 6 ft 1 8 m 2 ft 610 mm 11 ft 3 4 m 2 ft 610 mm 10 ft 3 1 m 3 ft 914 mm 16 ft 4 9 m 3 ft 914 mm 14 ft 4 3 m H1 H2 20 ft...

Page 35: ...tion Manual 2599 980 Rev B 5 23 Top Vent Vertical Termination No Elbow Figure 4 14 V1 Note If installing a vertical vent termination off the top of the ap pliance the flue restrictor should be used V1...

Page 36: ...by using two self tapping screws See Figure 4 15 Table 4 1 Vertical TOP VENT NG 4 ft 1 1 8 ft 2 2 15 ft 2 2 20 ft 3 2 25 ft 3 2 30 ft 3 3 35 ft 3 4 40 ft 3 4 Top Vent Vertical Termination continued N...

Page 37: ...7 Two Elbows V1 H1 Maximum V2 V1 V2 Min Elbow only 2 ft 610 mm 6 in 152 mm 6 ft 1 8 m 2 ft 610 mm 11 ft 3 4 m 3 ft 914 mm 16 ft 4 9 m 4 ft 1 2 m 20 ft 6 1 m V1 V2 H1 50 ft 15 2 m Maximum No specific r...

Page 38: ...LLED HORIZONTALLY H1 H2 V1 V2 V1 H1 H2 V2 V1 V2 Minimum H1 H2 Maximum Elbow only 1 ft 305 mm 1 ft 305 mm 6 in 152 mm 2 ft 610 mm 2 ft 610 mm 1 ft 305 mm 2 ft 610 mm 2 ft 610 mm 2 ft 610 mm 4 ft 1 2 m...

Page 39: ...nt elbow is three inches or less See Figure 5 1 Note A minimum of three inches clearance from the top of the pipe to any combustible material must always be maintained WARNING Risk of Fire Elbow heat...

Page 40: ...l shield firestop on both sides then both wall shield firestops must have a heat shield refer to Section 12 A attached to them See Section 7 F for information for regarding the instal lation of a hori...

Page 41: ...ion around the vent Maintain clearances to vent to prevent overheating A ceiling firestop MUST be used between floors and attics DVP pipe only Frame an opening 10 in by 10 in 254 mm by 254 mm whenever...

Page 42: ...s and Remove Seal Cap NOTICE Once the seal cap has been removed it CANNOT be reattached Figure 6 3 Generic Fireplace Shown To attach the first section of vent pipe make sure to use the vent gasket in...

Page 43: ...ance to ensure fit within the framing Determine the heat management system s that will be installed Locate the two heat management knockouts on the top of the appliance Remove the knockout from the fi...

Page 44: ...appliance into position Keep nailing tabs flush with the framing Level the appliance from side to side and front to back Square the appliance by securing diagonal dimensions to within 1 4 inch of each...

Page 45: ...k of Fire or Explosion Vent sections MUST be installed correctly Improperly installed vent sections could leak or cause appliance to overheat Required Commercial Multi family Multi level exceed ing tw...

Page 46: ...ely fitted and locked into the preceding component It is acceptable to use screws no longer than 1 2 in 13 mm to hold outer pipe sections together If predrilling holes DO NOT penetrate inner pipe WARN...

Page 47: ...ining sections Only outer pipes are sealed sealing the inner flue is not required All unit collar pipe slip section elbow and cap outer flues shall be sealed B Assemble Slip Sections Slide the inner f...

Page 48: ...tallation instructions DO NOT allow vent to sag below connection point to appliance Vertical runs originating off the top of the appliance with no offsets must be supported every 8 feet 2 44 m after t...

Page 49: ...tive gloves and safety glasses during instal lation Sheet metal edges are sharp Slide the storm collar onto the exposed pipe section and align brackets Insert a bolt provided through the brackets and...

Page 50: ...eg on the extended heat shield on top of the pipe section to properly space it from the pipe section Note When using termination caps with factory supplied heat shield attached no additional wall shie...

Page 51: ...the use of surge protectors may help alleviate the interference 8 8 Electrical Information INSIDE OF APPLIANCE JUNCTION BOX BRACKET OUTSIDE OF APPLIANCE Accessories Requirements This appliance may be...

Page 52: ...electrical components are installed on the compo nent tray noted in Figure 8 3 The components may be removed if necessary Once components are reinstalled ensure the electrical components are connected...

Page 53: ...ance junction box to a switched circuit Incorrect wiring will override IPI safety lockout Refer to Figure 8 4 IntelliFire Touch Wiring Diagram This appliance is equipped with an IntelliFire Touch cont...

Page 54: ...bly Install fan through the valve plate cavity See Figure 8 6 Install and wire the fan per instruction shipped with the fan Figure 8 4 also shows additional details Reinstall valve plate assembly burn...

Page 55: ...on Check all fittings and connections with a non corrosive commercially available leak check solution DO NOT use open flame Fittings and connections could have loos ened during shipping and handling E...

Page 56: ...which consists of enough horizontal vent pipe to terminate through a 2x6 wall Top Vented with the required six inch minimum vertical one 90 degree elbow and DVP TRAP2 termination cap It may need to b...

Page 57: ...e plate as sembly See Figure 9 4 Perform service or replace gas valve WARNING Risk of Fire or Explosion Turn off gas to appliance before removing components Support gas line to prevent bending WARNING...

Page 58: ...ignite and will interfere with air flow through decorative barrier fronts Metal front of appliance may be covered with non combustible materials only Facing and or finishing materials must not interfe...

Page 59: ...re required to provide a smooth and durable finish Hearth and Home Technologies recommends a lightweight or all purpose compound Allow each coat to properly cure Allow the finishing coat s to cure for...

Page 60: ...pening to bottom of appliance 33 1 2 IN MER36MN 35 1 2 IN MER42MN Note All measurements in inches Note Measurement is taken from top of the opening NOT the top of the fireplace 5 2 1 2 13 14 15 16 17...

Page 61: ...MN Note All measurements in inches Note Measurement is taken from top of the opening Non Combustible Mantels Passive Heat Installed Figure 10 8 Combustible Mantel Leg or Wall Projections Acceptable on...

Page 62: ...MIN OPENING MUST NOT BE BLOCKED CEILING CEILING 2 IN MIN DO NOT INSTALL FINISHING MATERIAL ON THIS SURFACE 2 IN 51 mm MIN OPENING MUST NOT BE BLOCKED CEILING SIDE DISCHARGE DISCHARGE SLOTS ON BOTH SI...

Page 63: ...th this ap pliance model may be used Contact your dealer for a list of decorative barrier fronts that may be used Decorative Barrier Front Fit Types Inside Fit as shown in Figure 10 12 Decorative barr...

Page 64: ...SHING STRIPS NOT REQUIRED Non combustible Finishing Material Thickness 1 Inch Thick or Less Figure 10 14 Inside Fit Method NON COMBUSTIBLE FINISHING MATERIAL DECORATIVE FRONT NON COMBUSTIBLE FINISHING...

Page 65: ...FINISHING STRIPS FINISHING STRIP ALIGNS WITH HOLES NOTICE Remove finishing strips before firing appliance Remove glass assembly to access finishing strip screws Install and Remove Finishing Strips 1 A...

Page 66: ...whether the Passive Heat kit is installed with a top discharge side discharge or open top discharge MER36MN 76 IN MIN 1930 mm MER42MN 78 IN MIN 1981 mm Appliance may be installed off of floor FIREPLAC...

Page 67: ...RETAINERS Enlarged to show detail Included in manual bag Figure 11 2 Glass Retainer in Position GLASS RETAINERS A Remove the Shipping Materials WARNING Risk of Fire Close the ball valve before in sta...

Page 68: ...Log 1 Place Log 1 using the 4 and 6 log pins as guides as shown in Figure 4 The left end of the log will align with the burner screw as shown in the top view illustrated in Figure 5 4 4 2 2 6 6 5 5 1...

Page 69: ...nd of Log 3 clockwise until it touches Log Pin 3 Log 4 Place the right end of Log 4 with Log Pins 10 and 11 as shown in Figure 9 Rest the left end of Log 4 on the notch on Log 3 shown in Figure 8 LOG...

Page 70: ...ase Pan Shown Unpainted Figure 15 8KMOD MER42MN Shown Base Pan Shown Painted Note Log 7 8 Positions Log 7 Place Log 7 as shown in Figure 12 The forked end rests on the base pan 8KMOD MER42MN models on...

Page 71: ...Do NOT place media in a position that they may fall into area in front of pilot WARNING Do NOT use any media other than the media supplied with this appliance Do NOT exceed one layer of media on base...

Page 72: ...could occur Risk Of Asphyxiation Or Fumes Place media according to instructions WARNING Do NOT place media in area between glass and firebox Do NOT place media in a position that they may fall into ar...

Page 73: ...position Detailed Operating Instructions for the IFT ECM are provided in Section 3 K of the Owner s Manual Figure 11 8 IFT ECM 3 POSITION SWITCH TOP VIEW LED INDICATOR If this appliance is being upgr...

Page 74: ...hand to pull out and latch the four glass assembly latches onto the glass frame tabs Inspect and operate all glass latches to ensure they move freely and no obstructions are present Reinstall decorati...

Page 75: ...SLP RDS Roof Deck Insulation Shield SLP TVHW Vertical Termination Cap SLP FS Ceiling Firestop SLP TB1 Basement Vent Cap SLP WS Wall Shield Firestop SLP HVS Horizontal Pipe Support DVP 2SL Adapter SLP...

Page 76: ...products com Please contact your Majestic dealer with any questions or concerns For the location of your nearest Majestic dealer please visit www majesticproducts com Options Remote Controls Wall Cont...

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