Lennox Hearth EST-42, EST-50, EST-36 User Manual
INSTALLATION INSTRUCTIONS
Estate Series 36"/42"/50"
Wood-Burning Fireplaces
P/N 506023-11 Rev. E 06/2011
This manual is one of a set of three supporting this product.
Refer to P/N 506025-04 for Care and Operation Instructions and
P/N 750094M for detailed refractory panel placement instructions.
Ce manuel est disponible en francais, simplement en faire la
demande. Numéro de la pièce 506223-17.
MODELS
EST-36 EST-42 EST-50*
WH Report No. J20054576-231
PFS Report No. 09-185
Please read and understand these instructions before beginning
installation.
Do not alter or modify the fireplace or its components under any
circumstances. Any modification or alteration of the fireplace
system — including but not limited to the fireplace, chimney
components, and accessories—may void the warranty, listings,
and approvals of this system and could result in an unsafe and
potentially dangerous installation.
IMPORTANT! TO ENSURE PROPER ALIGNMENT OF GLASS DOORS:
INSTALL THIS FIREPLACE IN A SQUARE AND PLUMB CONDITION,
USING SHIMS AS NECESSARY AT SIDES AND/OR BOTTOM.
*Note: Model EST-50 is not available in Canada.
RETAIN THESE INSTRUCTIONS
FOR FUTURE REFERENCE.
LENNOX HEARTH PRODUCTS • ESTATE™ SERIES WOOD-BURNING FIREPLACES • MODELS EST-36, EST-42, EST-50 • INSTALLATION INSTRUCTIONS
TABLE OF CONTENTS
Packaging List ...................................page 2
SAFETY RULES ........................ page 2
Tools and Building Supplies ..............page 2
PRECAUTIONS ......................... page 3
Introduction ......................................page 3
Clearances/Height Requirements ......page 3
Chimney System ...............................page 3
Assembly Outline ..............................page 4
Location of Fireplace .........................page 4
Pre-Assembly Steps ..........................page 5
Pre-Installation Notes .......................page 5
Clearances ........................................page 5
Assembly Steps ................................page 5
Installing the EST-50 Outer
Transition Assembly ......................page 6
Installing the Fireplace ......................page 9
Fireplace Specications .....................page 10
Framing Specications ......................page 11
Installing the Chimney System ..........page 12
Ten Foot Rule Summary ....................page 14
Multiple Terminations........................page 15
Chimney Component Calculations ....page 15
Special Offset Instructions ................page 15
Offset Calculations ............................page 16
Vertical Elevation Chart ....................page 17
Offset Elevation Chart ........................page 17
Installing Offsets ...............................page 18
30° Chimney Offset through
Floor/Ceiling ..................................page 18
Installing the Refractory Panels ........page 18
Optional Equipment Considerations ..page 19
• Outside Combustion Air Kits .........page 19
• Glass Doors ..................................page 19
Gas Line Connection .........................page 20
Vent Free Appliances .........................page 20
Cold Climate Insulation .....................page 20
Fireplace Finishes ..............................page 20
• Mantels and Trim ..........................page 20
• Hearth Extensions/Wall Shields ....page 21
Finish Requirements .........................page 23
Shipping Weights ..............................page 23
Installation Components ...................page 24
PACKAGING LIST
Included with all models:
• (1) Fireplace Assembly
• (1) Metal Safety Strip Assembly
• (1) Grate Assembly
• (2) Grate Brackets
• (2) Pull Screen Panels (Mesh Firescreens)
• (2) Screen Rods
• Hardware
Also included with EST-36 and EST-42 models:
• (2) Refractory Clips
Also included with EST-42 models:
• (2) Front Refractory Retainers (LH & RH)
Also included with EST-50 models:
• (1) Outer Transition Assembly
• (1) Inner Collar Assembly
2
• (1) Damper Link
SAFETY RULES
IMPORTANT: PLEASE READ AND
UNDERSTAND THESE RULES TO
FOLLOW FOR SAFETY.
1. Before starting replace installation, read
these installation instructions carefully to be
sure you understand them completely and in
entirety. Failure to follow them could cause a
fireplace malfunction resulting in serious injury
and/or property damage.
2. Always check your local building codes. The
installation must comply with all local, regional,
state and national codes and regulations.
3. The Estate™ Series 36" and 42" models
may be installed with Security Chimneys™
FTF10 [10" (250mm) inside diameter] chimney
systems. The Estate Series 50" model may
only be installed with Security Chimneys™
FTF13 [13" (330mm) inside diameter] chimney
system. These systems are intended for use
in any application where a traditional masonry
type fireplace would apply. The chimney system
must always vent to the outside of the building.
4. To ensure a safe fireplace system and to prevent the build-up of soot and creosote, inspect
and clean the fireplace and chimney prior to
use and periodically during the heating season.
5. Use solid fuel only. DO NOT use chemical
chimney cleaners or flame colorants in your
fireplace.
Never burn treated construction lumber or
scraps. These woods burn excessively hot and
may contain chemicals used to treat insects
and fungus. When burned, these chemicals
can pose a significant hazard.
6. DO NOT use charcoal or coal under any
circumstances.
7. NEVER use gasoline, gasoline-type lantern
fuel, kerosene, charcoal lighter fluid, or similar
liquids to start or “freshen up” a fire in this
replace. Keep any ammable liquids at safe
distance from the fireplace.
8. NEVER leave children unattended when there
is a fire burning in the fireplace.
9. Always keep flue damper open when heat is
present in the fireplace.
10. Before servicing, allow the replace to cool.
Always shut off any electricity or gas to the
fireplace while working on it. This will prevent
any possible electrical shock or burns.
11. This fireplace is not intended to heat an
entire home or be used as a primary heat source.
It is designed to ensure homeowner comfort
by providing supplemental heat to the room.
NOTE: DIAGRAMS & ILLUSTRATIONS ARE NOT TO SCALE.
12. Always ensure that an adequate supply of
replacement combustion air from the outside
of the house is accessible to the fire to support
normal combustion. Fireplaces consume large
volumes of air during the normal combustion
process.
If the home is tightly sealed with modern energy
efficient features, the optional combustion air kit
may not provide all the air required to support
combustion. The manufacturer is not responsible for any smoking or related problems that
may result from the lack of adequate combustion air. It is the responsibility of the builder/
contractor to ensure that adequate combustion
air has been provided for the fireplace.
13. DO NOT use a fireplace insert or any other
products not specified herein by the manufacturer for use with this fireplace. All gas log sets
must be operated with the damper clamped
open, including unlisted “vent-free” log sets.
Listed “vent-free” log sets may be operated
with the damper closed.
14. “Smoke free” operation is not warranteed
nor are we responsible for inadequate system
draft caused by mechanical systems, general
construction conditions, inadequate chimney
heights, adverse wind conditions and/or unusual
environmental factors or conditions beyond
our control.
15. Never, under any circumstances, install a
fireplace, chimney component or any accessories, that has visible or suspected physical
damage as a result of handling or transportation. These items should be inspected by your
distributor or qualified factory representative to
ensure safe condition. When in doubt, consult
your distributor.
16. For additional safety considerations and
complete operating instructions, refer to the
Care and Operation Manual provided with the
fireplace.
TOOLS AND BUILDING SUPPLIES
NORMALLY REQUIRED
Tools required:
Phillips screwdriver Measuring tape
Electric drill and bits Hammer
Plumb line Pliers
Saw and/or Sabersaw Square
Level
Additional tools for EST-50 installation:
5/16" and 1/4" nut driver
Two 7/16" wrenches
Building supplies required:
Framing materials
Wall nishing materials
Caulking materials (noncombustible)
Fireplace surround and hearth
extension materials (noncombustible)
LENNOX HEARTH PRODUCTS • ESTATE™ SERIES WOOD-BURNING FIREPLACES • MODELS EST-36, EST-42, EST-50 • INSTALLATION INSTRUCTIONS
PRECAUTIONS
Note: These fireplace systems are not difficult
to install. However, in the interest of safety, it
is recommended that the installer be a qualified
or certified “tradesman” familiar with commonly accepted fireplace installation and safety
techniques as well as prevailing local codes.
The most important areas of concern dealing
with the installation of factory-built fireplaces
are clearances to combustible materials, proper
assembly of component parts, height of the
chimney system, the proper use of accessories
supplied by the manufacturer and the techniques
employed in using finishing materials applied
to the wall surrounding the fireplace, hearth
extensions and wall shields. Each of these topics
will be covered in thorough detail throughout
this manual. Please give each your special attention as you progress with your installation.
IMPORTANT NOTES:
• WHEN INSTALLING IN CANADA (EST-36
AND EST-42 ONLY), THE COLD CLIMATE KIT
MUST BE INSTALLED PER THE WARNOCK
HERSEY LISTING (see Step 6 on page 12
and “Installation Components” on page 24.
• THE MINIMUM AIR SPACE TO COMBUSTIBLES FOR THE CHIMNEY SYSTEM IS 2"
(51mm).
• THE FTF13 CHIMNEY SYSTEM IS NOT FOR
USE IN CANADA. MODEL EST-50 IS NOT
FOR USE IN CANADA.
Chimney and
Termination
INTRODUCTION
General Information
These fireplaces are conventional radiant heat
fireplaces with standard bar grates, optional
outside combustion air kits and optional decorative glass doors.
Note: Illustrations reflect “typical” installations
with nominal dimensions and are for design
and framing reference only. Actual installations
may vary due to individual design preferences.
However, always maintain minimum clearances
to combustible materials and do not violate any
specific installation requirements.
Models EST-36 and EST-42 have been tested
and listed to U.L. 127 standard for U.S. installations and U.L.C. S610 standard for Canadian
installations by Warnock Hersey Inc. (Report
No. J20054576-231). Model EST-50 has been
tested and listed to U.L. 127 standard for U.S.
installations by PFS-US (Report No. 09-185)
for EST-50.
These units are intended for installation in
residential homes and buildings of conventional
construction, not in mobile homes.
These fireplace systems are designed for in-
stallation in accordance with the National Fire
Protection Standard for chimneys, fireplaces
and solid fuel burning appliances; NFPA 211
and in accordance with codes such as the BOCA
Basic/National Codes, the Standard Mechanical Code, Uniform Building Codes and/or the
Canadian National Code.
WARNING
Failure to use manufacturerprovided parts, variations in
techniques and construction
materials, or practices other
than those described in this
manual may create a fire hazard
and void the limited warranty.
When complete, these replace systems consist
of five basic “sub-systems”:
1. Fireplace
2. Chimney and Termination
3. Optional Glass Doors
4. Optional Combustion Air Kit
5. Chimney Collar Enclosure Kit (Canada only)
CLEARANCES AND HEIGHT
REQUIREMENTS
The fireplace may be placed on or near normal
construction materials.* The combustion air kit,
firestop spacer and roof flashings (not chase
flashings) may be placed directly on or against
normal construction materials.* The chimney
requires a minimum 2" (51 mm) air space to
combustibles. A combustible mantel may be
installed a minimum of 12" (305 mm) above
the opening of the replace as per NFPA 211,
“Mantel/Trim Clearances” Section. In Canada the
minimum is 24" (610 mm) above the opening.
The fireplace and chimney system must be
enclosed when installed in or passing through
a living area where combustibles or people may
come in contact with it. This is important to
prevent possible personal injury or fire hazard.
For questions, please call your distributor or
the manufacturer. Special restrictions apply to
the front and facing of the fireplace and nearby
walls (see pages 20 and 21).
Optional Position
for Cold Climate Kit
(Canada Only)
Outside
Combustion
Air Kit
(Optional)
Figure 1: Typical Installation
Cold Climate Kit
(Canada Only)
NOTE: DIAGRAMS & ILLUSTRATIONS ARE NOT TO SCALE.
CHIMNEY SYSTEM
These fireplaces are designed and code listed for
use with Security Chimneys FTF10 and FTF13
chimney System only. Always use Security
Chimneys FTF10 and FTF13 chimney components with these fireplaces. Do not modify or
alter these components as this may cause a
potential serious hazard and void the Warranty.
*Construction Materials:
•framingmaterials
•paneling
•particleboard
•ooring
•drywall
•plywood
•noncombustibleinsulationboard
(for hearth)
3
LENNOX HEARTH PRODUCTS • ESTATE™ SERIES WOOD-BURNING FIREPLACES • MODELS EST-36, EST-42, EST-50 • INSTALLATION INSTRUCTIONS
Hearth
Hearth
Optional
Outside
Chase
Insulate Joists
Same as Ceiling
Draft Stops
F10FS-2 Firestop
FTF10-CTDTM
Termination
Note: NonCombustible
Chase
Flashing
Must be
Used to
Cover
Chase
Opening
Insulation
(Thermal Barrier)
Figure 2
8’
(2.4m)
Level
Typical Installation
Optional
Insulation
in Outside
Walls of
Chase
Solid
Continuous
Surface
Outside
Base
Note: Do not insulate the chase cavity with
blown or fill type insulation materials.
CHIMNEY HEIGHT
The total height of your completed fireplace system from the surface the fireplace rests on to the
chimney top must not exceed 80' (24.4m) and
must also meet minimum height requirements.
Refer to the minimum system height chart.
Minimum System Height
Security Chimneys™ FTF10 & FTF13 Pipe
Installation
Vertical 16' 0" (4.8m) 17' 6" (5.3m)
One Offset 18' 6" (5.6m) 20' 0" (6.1m)
Two Offsets 22' 0" (6.7m) 25' 0" (7.6m)
EST-36 &
EST-42
EST-50
Chase Enclosure
A chase is a vertical box-like structure constructed to surround the fireplace and chimney. Refer
to Figure 2 for a typical chase configuration. As
with all chimney installations, avoid overhead
obstructions such as trees, power lines, etc.
A chase should be constructed and insulated
just like any outside wall. In a cold climate, we
recommend the base of the chase should also
be insulated between the solid continuous floor
beneath the fireplace and the chase bottom.
Chase insulation in a cold climate installation
is not required for safety.
ASSEMBLY OUTLINE - Before You Start
~
Damper
OPEN
Lintel
EST-36 & EST-42
Combustion
Air Actuator
Damper
CLOSED
~
Damper
CLOSED
Lintel
Figure 3
LOCATION OF FIREPLACE
Carefully select the proper location for heat
circulation, aesthetics, chimney obstructions
and clearance to side wall(s). With proper pre-
planning, a slight adjustment of a few inches
can save considerable time and expense later
during construction and assembly.
Damper
OPEN
Combustion
Air Actuator
EST-50
WARNING
If insulation is used, the fireplace
must not be placed directly
against it. Insulation or vapor
barriers, if used, must first be
covered with gypsum board,
plywood, particle board or other
material to assure insulation and
vapor barriers remain in place.
WARNING
Do not pack or fill required
air spaces with insulation or
other material. No material is
allowed in these areas.
Note: Local codes may not require firestopping
at the ceiling levels for outside chase installations; however, it is recommended for safety
and the reduction of heat loss.
4
Check your inventory list to be sure you have
all the necessary parts supplied in good usable
condition. Check also for any concealed damage.
Check the operation of the damper. The damper
is controlled through the use of a control lever
located within the rebox opening at the top
center just behind the rebox lintel (Figure 3).
EST-36 and 42 models: To lock the damper
blade in the OPEN position, push the damper
handle back and up (away from the front of
the fireplace). To lock the damper blade in
the CLOSED position, pull the damper handle
FORWARD and DOWN (toward the front of
the fireplace).
EST-50 model: To lock the damper blade in
the OPEN position, pull the damper handle
FORWARD and DOWN (toward the front of
the fireplace). To lock the damper blade in the
CLOSED position, push the damper handle back
and up (away from the front of the fireplace).
NOTE: DIAGRAMS & ILLUSTRATIONS ARE NOT TO SCALE.
Figure 4
Carefully consider the position of the fireplace
opening with respect to the location of adjacent
or nearby stairwells, bath or kitchen exhaust
fans and/or return air registers for forced air
furnaces/air conditioners that could cause a
smoking fireplace condition if the house is
tightly insulated.
When locating the replace, consideration must
be given to combustibles and final finishing.
See Figure 5 and confine the final location of
combustible finish materials to the “Safe Zone.”
LENNOX HEARTH PRODUCTS • ESTATE™ SERIES WOOD-BURNING FIREPLACES • MODELS EST-36, EST-42, EST-50 • INSTALLATION INSTRUCTIONS
Black Portion Of Frame
Not To Be Covered With
Combustible Materials
Wall
4-3/4”
15°
1/2”
Door
Opening
18”
Covering
Safe
Zone
Figure 5
NOTE: Do NOT permanently place furniture or
other items such as decorative pillows within
60" of the fireplace front face.
PRE-ASSEMBLY STEPS
EST-50: Install the outer transition assembly
before installing the fireplace. See “Installating
the EST-50 Outer Transition Assembly” (next
page).
EST-36 and EST-42: See Figure 6, below.
Remove all items packed under the grate and
set aside for later installation. Cut the two wire
ties securing the grate, and discard the ties.
Remove the grate, and set aside for later installation. Using a 1/4" nut driver, remove the two
tie brackets from the rebox oor, and discard
the tie brackets.
PRE-INSTALLATION NOTES
The fireplace may be installed directly on a
combustible floor or raised on a platform of
an appropriate height. Do not place fireplace on
carpeting, vinyl or other soft floor coverings. It
may, however, be placed on flat wood, plywood,
particle board or other hard surfaces.
Be sure replace rests on a solid continuous
floor or platform with appropriate framing for
support and so that no cold air can enter the
room from under the fireplace.
The fireplace may be positioned and then the
framing built around it, or the framing may be
constructed and the fireplace positioned into
the opening.
Usually, no special floor support is needed for
the fireplace, however, to be certain:
1. Estimate the total weight of the fireplace
system including chimney and surround materials such as brick, stone, etc., to be installed.
Shipping weights for the fireplace may be found
on page 23.
2. Measure the square footage of the floor space
to be occupied by the system, surrounds and
hearth extensions.
3. Note the oor construction, i.e., 2 x 6’s,
2 x 8’s or 2 x 10’s, single or double joists, type
and thickness of floor boards.
4. Use this information and consult your local
building code to determine if you need additional support.
Cut the wire ties holding the grate to
the firebox floor, and remove the grate.
Use a 1/4" nut driver to remove the
screws from the tie brackets.
Discard wire ties and tie brackets
after removal.
Wire Ties and Tie Brackets
Grate
Front Refractory Retainers
(EST-42 only)
Screen Rods
CAUTION: DO NOT BLOCK THE HEAT-CIRCULATING AIR INLET AND OUTLET PORTS
ON CIRCULATING MODELS. DOING SO MAY
RESULT IN A POTENTIAL FIRE HAZARD.
If you plan to raise the fireplace and hearth
extension, build the platform assembly, then
position replace and hearth extension on
top. Secure the platform to the floor to prevent
possible shifting.
CLEARANCES
Minimum clearance to combustibles for the
Estate fireplace is as follows; sides and back –
1" (25.4 mm), combustible floor – 0" (0 mm),
adjacent wall 18" (457 mm), adjacent shielded
wall (K factor of .84 or less 24" W x 36" H) 12"
(305 mm), ceiling – 37-1/2" (953 mm).
Note: Clearance at the nailing flange for both
fireplace models is 0" (0mm).
Note: Adjacent wall considerations are for
an adjacent wall on only a single side. Walls
should not be placed at minimum distance at
both sides of the fireplace.
ASSEMBLY STEPS
Note: The following steps represent the normal
sequence of installation. Each installation is
unique, however, and may require a different
sequence.
1. Position rebox prior to framing or into
prepared framing.
2. Install Cold Climate Kit (Canada only).
3. Install the chimney system.
4. Install optional outside combustion air kit.
5. Plumb gas line if a decorative gas appliance
will be used. (Gas connections should only be
performed by an experienced, licensed/certied
tradesman.)
6. Complete the installation; finish wall mate-
rial, surround and hearth extension to your
individual taste.
7. Assemble and attach optional glass door
assembly.
See Figure 1 on page 3 for a general idea of
each element of the fireplace system.
Figure 6: EST-36 and EST-42 Assembly
Wire (Mesh) Firescreens
Literature and Hardware
Grate Brackets
5
NOTE: DIAGRAMS & ILLUSTRATIONS ARE NOT TO SCALE.
LENNOX HEARTH PRODUCTS • ESTATE™ SERIES WOOD-BURNING FIREPLACES • MODELS EST-36, EST-42, EST-50 • INSTALLATION INSTRUCTIONS
INSTALLING THE EST-50 OUTER TRANSITION ASSEMBLY
This section contains instructions for attaching the outer transition
assembly on the EST-50 rebox. The transition assembly parts are
shipped inside the EST-50 rebox (Figure A- 1 , below) and are not
available as separate kit or accessory items.
Inner
Transition
Outer
Transition
Assembly
Lennox Hearth Products Estate™ Series EST-50 firebox assembly,
as shipped, with outer transition assembly packed inside firebox.
Figure A-1
Step 1. Remove outer transition assembly from firebox.
1.1. See Figure A-2, below. Using a 1/4" nut driver, remove the two
screws securing the outer transition to the rebox (one screw on
each side).
1.3. With the other hand, grasp the top of the outer transition and pull
forward (Figure A-4, below).
1.4. When the top of the transition is outside the rebox, let go of the
damper handle, and use both hands to lift the entire transition
assembly out of the rebox.
Figure A-4
Step 2. Remove all items from firebox.
2.1. See Figure A-5, below. Remove the box, damper link, screen rods,
and mesh firescreens, and set aside for later installation.
2.2. Cut the two wire ties securing the grate to the rebox.
2.3. Using a 1/4" nut driver, remove the screws from the brackets under
the grate. Discard the wire ties and brackets.
2.4. Remove the grate from the rebox, and set aside for later installation.
Figure A-2
1.2. With one hand, hold the damper handle back (Figure A-3, below).
Damper Handle
Figure A-3
6
NOTE: DIAGRAMS & ILLUSTRATIONS ARE NOT TO SCALE.
Inner Transition Collar (hardware bag underneath)
Grate Brackets
Grate
Mesh Firescreens
Damper Link and Screen Rods
Figure A-5
Cut and discard wire ties.
Use 1/4" nut driver to remove
screws from brackets.
(continued on next page)
LENNOX HEARTH PRODUCTS • ESTATE™ SERIES WOOD-BURNING FIREPLACES • MODELS EST-36, EST-42, EST-50 • INSTALLATION INSTRUCTIONS
INSTALLING THE EST-50 OUTER TRANSITION ASSEMBLY
(continued from previous page)
Step 4. Attach damper link to damper bracket on inner
transition collar.
4.1. Turn the inner transition collar upside down, and attach the damper
link to the damper bracket with the enclosed 1/4-20 bolt and nut,
as shown in Figure A-6, below.
Damper Link
Damper
Bracket
Step 5. Attach damper assembly to inner transition flange.
5.1. See Figure 8, below. Insert the damper link through the inner
transition flange, and then place the inner transition collar over the
inner transition flange.
Damper Assembly:
Inner Transition Collar
Damper Link
Inner Transition
Flange
Firebox Front
Figure A-8
[DETAIL]
Inner Transition Collar
(upside down)
Figure A-6
4.2. Using two 7/16" wrenches, tighten the nut completely (Figure
A-7, below).
4.3.
After tightening the nut, loosen it 1/2-turn.
5.2. See Figure A-9, below. Align the notch in the rear of the inner
transition collar with the dimple in the rear of the inner transition.
5.3. Using a rubber mallet, gently tap the damper assembly (at the top
of the inner transition collar) until all screw holes align.
Inner Transition Collar (rear)
Align notch and dimple.
Inner Transition (rear)
Figure A-9
5.4. See Figure A-10, below. Using a 5/16" hex head nut driver, secure
the damper assembly with the ve (5) provided zinc-plated #10 x 3/8"
screws.
Figure A-7
Figure A-10
NOTE: DIAGRAMS & ILLUSTRATIONS ARE NOT TO SCALE.
(continued on next page)
7
LENNOX HEARTH PRODUCTS • ESTATE™ SERIES WOOD-BURNING FIREPLACES • MODELS EST-36, EST-42, EST-50 • INSTALLATION INSTRUCTIONS
WARNING
SINGLE-PERSON LIFT COULD
CAUSE INJURY. USE ASSISTANCE
WHEN MOVING OR LIFTING.
LIFTING HAZARD.
INSTALLING THE EST-50 OUTER TRANSITION ASSEMBLY
(continued from previous page)
Step 6. Attach damper link to damper handle.
6.1. Attach the damper link to the factory-installed bolt on the damper
handle with one supplied nut, as shown in Figure A-11, below.
NOTE: Use the additional supplied nut. (Do NOT remove the
existing factory-installed nut from the damper handle.)
6.3. Using two 7/16" wrenches, tighten the nut completely; then loosen
1/2-turn.
Damper
Link
Inner Transition
Collar (with
Damper)
Damper
Link
Damper Handle
(See DETAIL,
at right.)
Supplied Nut
(After installing,
loosen 1/2-turn.)
Damper Handle
with factory-installed
Bolt and Nut
(Do not remove.)
[DETAIL]
7.2. See Figure A-13, below. While tilting one of the front standoffs
forward, slide the front flange of the outer transition under the rear
holes of the standoff, and align the screw holes.
7.3. Repeat Step 7.2 for the other front standoff.
Outer
Transition
(Front)
Front
Standoff
Slide transition
flange under rear
holes of standoff.
Figure A-11
6.4.
BEFORE installing the outer transition, make
sure the damper assembly works properly.
The damper should freely move to a fully closed and fully open
position without interference, and the damper should remain fully
closed when latched. Refer to page 2 of the Care and Operation
Instructions (P/N 506025-04 ) for details on proper damper operation.
Step 7. Install outer transition.
7.1. Using at least two people, lift the outer transition into place, as
shown in Figure A-12, below.
Figure A-13
7.4. See Figure A-14, below. Attach fourteen (14) of the provided screws
to secure the outer transition.
Note:
• Make sure the lower flange of the outer transition is UNDER
the rear holes of each front standoff.
• The hardware bag contains more screws than are required
for installation.
Figure A-14
8
Figure A-12
NOTE: DIAGRAMS & ILLUSTRATIONS ARE NOT TO SCALE.
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