background image

NOTE: DIAGRAMS & ILLUSTRATIONS ARE NOT TO SCALE.

19

If you’re installing a gas line, connect it before 
the fi replace is framed and enclosed in the 
fi nished wall. The gas knockout is determined 
by the indentation located at the bottom and 
slightly off center in the side refractories. 

THE 

KNOCKOUT IS ALWAYS REMOVED FROM 
INSIDE THE FIREPLACE. DO NOT REMOVE 
THE KNOCKOUT UNLESS YOU ARE INSTALL-
ING A GAS LINE.

 If removal is attempted from 

the outer wrapper, side refractory damage 
may occur. With a medium-sized hammer, 
lightly tap the surface of the indentation. The 
refractory material is very thin in this area 
and is easily removed. Once a small hole has 
been made, continue tapping until you have 
reached suffi cient diameter for the gas line to 
fi t through. The entire knockout does not have 
to be removed. Remove insulation in the gas 
line channel.

IMPORTANT: REPACK INSULATION MATE-
RIAL IN SQUARE HOLE AROUND GAS LINE, 
INTERIOR AND EXTERIOR OF FIREPLACE, 
TO SEAL.

Glass Doors

If glass doors are to be installed on these 
fi replaces, refer to specifi c installation instruc-
tions packed with the glass doors. Use only 
the doors that are listed for use with these 
fi replaces. Use of other non-listed glass door 
on these fi replaces may constitute a potential 
fi re hazard and is not recommended.

Vent Free Appliances

This unit has been tested and approved to 
ANSI/IAS/AGA Z21.11.2 for use with unvented 
gas appliances for INDOOR INSTALLATIONS 
ONLY and complies with the standard for Fac-
tory-Built fi replaces, UL 127, when installed 
with unvented gas log sets.

Special instructions with regards to mantel 
installations must be taken into consideration 
when installing such appliances.

The unit has been tested for use with any 
unvented log sets having a maximum rating of 
26,000 BTU in Indoor installations only.  The 
minimum mantel confi guration for these log 
sets are outlined in

 Figure 52

.

Log sets with 40,000 BTU may be installed 
provided that no combustible mantel projec-
tions are placed lower than 18 inches from the 
fi replace opening.

These fi replaces have been marked with a 
maximum rating of 26,000 BTU to assure 
that homeowners do not exceed the allowable 
limits for all allowed installations of mantels.  
That limit may be increased to 40,000 BTU, 
provided that the mantel installed complies 
with the 18-inch limitation and a copy of these 
instructions are available.

       IMPORTANT 

 Allow minimum 1"* chimney air 
space to combustible framing 
members throughout vertical or 
offset chimney installation.

       ATTENTION 

 Permettez 1 minimal” * l’espace 
aérien de cheminée aux mem-
bres encadrants combustibles 
partout dans vertical ou à 
l’installation de cheminée de 
rejeton.

*Note:  In Canada, a 

2” clearance to com-

bustibles is required.

• Outdoor installations less than 15’ height 
require chimney clearance of 2” air space to 
insulation and construction materials.

       WARNING 

Unvented Gas Log Sets are not 
approved for use with fi replaces 
installed outdoors. The materials 
and components will deteriorate 
prematurely if installed outside. 
Refer to the log manufacturer’s 
literature for limitations and 
exceptions.

       AVERTISSEMENT 

Les ensembles de bûches à gaz 
sans conduit d’évacuation ne sont 
pas approuves pour l’usage avec 
des foyers installes a l’exterieur. 
Les materiaux et les composantes 
se deterioreront prematurement si 
installees a l’exterieur. Referez-
vous a la litterature du fabricant 
des buches pour les limites et les 
exceptions.

       CAUTION 

Plumbing connections should 
only be performed by a quali-
fi ed, licensed plumber. Main 
gas supply must be off when 
plumbing gas line to fi replace 
or performing service.

       ATTENTION 

Les raccordements de tuy-
auterie devraient seulement 
etre effectues par un plombier 
qualifi e et autorise. La valve 
d’alimentation de gaz princi-
pale doit etre fermee lors de 
l’installation ou de l’entretien 
de ce foyer.

       CAUTION 

Certain glass doors overlap the 
black metal facing of the fi replace. 
IF the fi replace has been faced with 
noncombustible materials, there 
might not be suffi cient clearance 
to install the glass doors of your 
choice. Ensure adequate clearance 
is maintained at all times so as not 
to interfere with the installation and 
operation of glass doors.

Summary of Contents for Merit Plus MP-420D

Page 1: ...EQUIPPED TO BE READILY IN STALLED OUTDOORS IF INSTALLED INDOORS YOU MUST INSTALL THE COMBUSTION AIR COVER PROVIDED WITH THE INSTALLATION KIT OR PURCHASE THE OPTIONAL OUTSIDE AIR KIT GATE OAKG OD SEE...

Page 2: ...tate and national codes and regulations 3 ThisfireplacemustbeinstalledwithSecurity Chimneys FTF8 8 203mm inside diam eter Chimney System only This fireplace is intendedforindoororoutdoorinstallations...

Page 3: ...always maintain minimum clearances to combustible materials and do not violate any specific installation requirements These fireplaces have been tested and listed by OMNI Test Laboratories Inc Report...

Page 4: ...materials Outdoor installations less than 15 height require chimney clearance of 2 air space to insulation and construction materials In Canada the chimney and fireplace outer wrapper require a minimu...

Page 5: ...kept within the shaded areas illustrated in Figure 7 CLEARANCES Minimum clearance to combustibles for the appliance is as follows sides and back 1 25 mm floor 0 0mm adjacentwall 12 305 mm ceiling 37 1...

Page 6: ...t If you plan to raise the fireplace and hearth extension build the platform assembly then position fireplace and hearth extension on top Secure the platform to the floor to prevent possible shifting...

Page 7: ...the outside air kit is NOT installed you must install the Outside Air Cover provided with the instructions kit b IfanoutsideairkitISinstalled theOutside Air Kit Gate must be installed see Page 23 of o...

Page 8: ...ons Outside Air Kit Installation provided These appliances are equipped with a com bustion air inlet collar so that it is possible to duct combustion air from the outdoors to the firebox To accomplish...

Page 9: ...g Materials if any Rough Framing Face Unfinished Shown Combustion Air Kit Optional Framing Dimensions A 46 1 2 1181 mm B1 43 1 2 1105 mm B2 60 1 2 1537 mm C 33 828 mm D 17 1 2 445 mm E 76 1 4 1937 mm...

Page 10: ...ions must not interfere with circulating grillwork Figure 19 Figure 20 A B Ceiling Framing C D Roof Framing Framing Dimensions for Ceiling Inches millimeters Flue Type A B FTF8 Vertical USA 14 1 2 368...

Page 11: ...les espaceurs du dessus du foyer voir le sch ma 13 ne peuvent tre retir es ou modifi es vous ne pouvez pas entaillez le colombage pour ajuster autour ou tre install plus bas que les espaceurs Le colom...

Page 12: ...and outer wrapper require a minimum 2 air space to insulation and construction materials Reference Figures 19 20 and charts Framing DimensionsforCeilingandRoof whichspecify minimum ceiling and roof di...

Page 13: ...e the building must be con structed with galvalume outer sections only Theappropriatemodeldesignationsarelocated in the back of this manual F8FS30 Firestop Spacer FTF8 S4 Stabilizer 1 Min Air Space 30...

Page 14: ...as noted in Step 4 Step 6 Select the proper Security Chimneys roof flashing based on pitch of roof Use chart below for selection Figure 37 Note Do not caulk or seal the ventilating open ings or seal t...

Page 15: ...chimney must be at least 2 above this reference point In all cases thechimneycannotbelessthen3 above the roof at the edge of the chimney The 2 in 10 rule is necessary in the interest of safety but doe...

Page 16: ...36 48 11 0 11 1 0 0 0 17 1 5 0 1 0 0 21 1 9 2 0 0 0 27 2 3 1 1 0 0 35 2 11 0 0 1 0 47 3 11 0 0 0 1 51 4 3 0 1 1 0 57 4 9 1 0 0 1 63 5 3 0 1 0 1 67 5 7 2 0 0 1 73 6 1 1 1 0 1 81 6 9 0 0 1 1 93 7 9 0 0...

Page 17: ...the Straight Up In stallation Instructions for cutting and framing ceiling and roof openings Note See Framing and Dimension Chart for the sizes of the ceiling and roof openings The size of the roof op...

Page 18: ...ilizer Considerthiswhen determining the need for a stabilizer Note Do not apply excessive pressure to any subsequent chimney section following return elbow assembly when installing Ensure that each su...

Page 19: ...c tions are placed lower than 18 inches from the fireplace opening These fireplaces have been marked with a maximum rating of 26 000 BTU to assure that homeowners do not exceed the allowable limits fo...

Page 20: ...ux non combustibles il se pourrait qu il n y ait pas suffisament de d gagement pour installer les portes de verre de votre choix Assurez d avoir un d gagmet suf fisant tout moment afin de ne pasinterf...

Page 21: ...es 416 x 1 Answer TheminimumrequiredthicknessoftheMicore160is 417 there fore round up to nearest standard thickness available which is 1 2 Using the r formula Note To convert inches to millimeters div...

Page 22: ...ormal wall decor with elaborate mantels to rustic wood paneling or warm brick facings Only noncombustible materials like stone tile brick etc may overlap the black front facing Do not extend these mat...

Page 23: ...ith fireplace Shownhereforre placement purposes only Locking Band 63L60 FLB Ref Form 750 080M Spark Arrester 63L57 FSA 2 Ref Form 750 198M INSTALLATION COMPONENTS The following items are available for...

Page 24: ...n For open top shrouds 96L20 FTF8 CTT Ref Form 750 077M Chimney Pack conventional Convenience Pack Residential 63L70 FTF8 CP7 Contains 3 FTF8 36 1 F8FS 1 F8F6 1 FTF8 CTD 7 P C 8 F T F R O I R E P U S...

Reviews: