Lennox Hearth CAMBRIA 850 User Manual
INSTALLATION AND
OPERATION INSTRUCTIONS
CAMBRIA™
SAVE THESE INSTRUCTIONS
FOR FUTURE REFERENCE
WARNINGS
Wood-Burning Fireplace
P/N 850,057M REV. E 06/2010
MODEL
CAMBRIA
This installation manual will enable you to obtain a safe, efficient
and dependable installation of your fireplace system. Please read
and understand these instructions before beginning your installation
or operating the fireplace.
CAUTION: 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.
Lennox Hearth Products wood-burning fireplaces are designed for use
as a supplemental heater. They are not intended for continuous use
as a primary heat source.
WARNINGS
TM
• Hot! Do not touch! The glass and
surfaces of this appliance will be hot
during operation and will retain heat
for a while after shutting off the appliance. Severe burns may result.
• Carefully supervise children in the
same room as appliance.
•
If small children are present in the home, it is
recommended that this appliance be fitted with
a firescreen kit.
Listed to standards:
ULC-S610 and UL-127
Report No. 3092554
PICAMBRIA-A REV. 5 JUNE 2010
• The fireplace cannot be operated without a door
or firescreen. Consult your dealer to select the
correct replacement door or firescreen.
• Important! To assure proper alignment of glass
doors: Install this fireplace in a square and
plumb condition, using shims as necessary at
sides and/or bottom.
• Install the fireplace only as described in these
instructions.
IMPORTANT! GENERAL SAFETY
PRE CAU TIO NS. REA D AN D
UNDERSTAND THESE SAFETY
RULES BEFORE YOUR FIRST FIRE.
The CAMBRIA™ fireplace must
be installed with an outside air
kit intake, which is included with
the fireplace
THE FIREPLACE MUST BE OPERATED WITH THE DOORS FULLY
OPENED OR DOORS FULLY
CLOSED. IF THE DOORS ARE
LEFT PARTLY OPENED, GAS AND
FLAME MAY BE DRAWN OUT OF
THE FIREPLACE OPENING, CREATING RISKS OF BOTH FIRE AND
SMOKE. IF THE UNIT IS OPERATED WITH THE DOORS FULLY
OPENED, THE FIRE SCREEN
MUST BE USED.
NEVER use gasoline, gasolinetype lantern fuel, kerosene,
charcoal lighter fluid, naphtha,
engine oil or similar liquids to
start or “freshen up” a fire in this
fireplace. Keep any flammable
liquids a safe distance from the
fireplace at all times.
THIS FIREPLACE HAS NOT BEEN
TESTED WITH AN UNVENTED
GAS OR A FIREPLACE INSERT.
TO REDUCE RISK OF FIRE OR
INJURY, DO NOT INSTALL AN
UNVENTED GAS LOG SET OR
FIREPLACE INSERT OR OTHER
PRODUCTS NOT SPECIFIED FOR
USE WITH THIS FIREPLACE.
Never leave your fireplace unattended while it is burning.
2
WARNING
WARNING
CAUTION
WARNING
WARNING
CAUTION
Use care when selecting window
treatments for windows located
near the fireplace. Avoid using
combustible flowing window
treatments such as curtains
on nearby windows that are of
sufficient length to be blown in
front of an open flame when the
window is opened.
Keep any combustible furniture,
materials or decorative pillows
at least 48" (1219 mm) from the
front fireplace opening.
WARNING
Never leave children unattended
when there is a fire burning in
the fireplace.
IMPORTANT
When burning wood, use SOLID
NATURAL DRY WELL-SEASONED
WOOD ONLY. Hardwoods are
recommended (soft woods tend
to burn very quickly).
• DO NOT burn treated wood,
charcoal, coal, trash, cardboard, driftwood, woods dipped
in tar, Christmas tree greens,
pitch, pine tar, creosote, chemical chimney cleaners, flame
colorants, polystyrene packaging, wood products with synthetic
binders (i.e. plywood). Plywood,
lumber and other misc. materials can produce abnormally high
temperatures, sputtering and
smoking fires and may contain
hazardous chemicals to treat
insects and fungus.
• Burning unapproved fuels can
produce excessive temperatures
(overfiring), beyond the design
capabilities of the fireplace and
may produce excess sparks or
may contain hazardous chemicals. Burning unapproved fuels
can result in a chimney fire, a
house fire, personal injury, death
or loss of property.
WARNING
To avoid the risk of damaging
fireplace materials and increasing the risk of fire, do not use the
fireplace to cook or warm food.
WARNING
Be careful adding wood fuel to the
fire or handling fireplace tools such
as shovels, tongs or pokers.
WARNING
Never modify or alter your fireplace system in any way. To do
so may create a potential fire
hazard and void the limited warranty, listings and approvals of
this system.
WARNING
The bottom refractory can be
cracked by excessive abuse such
as tossing heavy logs onto the
grate or gouging with fireplace
tools. Exercise caution when
adding wood to your fireplace.
Neither the manufacturer nor the
seller warrants “smoke free”
operation 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.
Always ensure that the air inlet to
the fireplace is free from debris
and any other obstructions that
can block the entrance of air.
For spectacular fire view and
optimum efficiency of your fireplace, we recommend that the
wood be placed as far back as
possible in the fireplace.
WARNING
WARNING
WARNING
CONGRATULATIONS!
When you purchased your new fireplace, you joined the ranks of thousands of individuals
whose answer to their home heating needs reflects their concern for aesthetics, efficiency
and our environment. We extend our continued support to help you achieve the maximum
benefit and enjoyment available from your new fireplace.
Thank you for selecting a Lennox Hearth Products fireplace as the answer to your home
supplemental heating needs.
OPTIONAL EQUIPMENT
•
5” flexible venting system (central forced
air kit) (see section 3.5.2)
• UZY5 blower. The blower installation re-
quires that an electrical connection of a 120v
electrical box located outside the fireplace
be made prior to moving the fireplace in its
final position. (see Optional Fireplace Blower
on Page 13)
• Gravity venting system (see Central Forced
Air Kit on Page 15)
TABLE OF CONTENTS
Safety Rules ......................................Page 2
Introduction ......................................Page 3
Parts Required .................................Page 3
Optional Equipment ...........................Page 3
Operating The Fireplace ....................Page 3
Fuel ...................................................Page 3
Combustion Control .........................Page 4
Refueling For Best Performance .......Page 5
Smoking – Causes And
Troubleshooting ..........................Page 5
Important Cautions ...........................Page 6
Maintaining Your Fireplace ...............Page 6
Creosote ............................................Page 6
Chimney Maintenance ....................... Page 6
Dealing With A Chimney Fire .............Page 6
Disposing of Ashes ...........................Page 6
Door Finish Casing Care ....................Page 6
Refractory Replacement ....................Page 6
Door Installation ...............................Page 6
Door Adjustment ...............................Page 7
Glass Care ......................................... Page 8
Gasket Replacement ........................Page 8
Andirons ...........................................Page 8
Fireplace Installation ........................Page 9
Locating The Fireplace ......................Page 9
Framing, Facing And Mantel ..............Page 10
Hearth Extension Requirements ....... Page 10
Cold Climate Installations ..................Page 10
Framing Dimensions .........................Page 11
Insulated Chase Construction ...........Page 12
Nailing Flanges ..................................Page 12
Mantel and Facing .............................Page 12
Optional Fireplace Blower ..................Page 13
Hot Air Ducting Installation ..............Page 14
Gravity Kit .........................................Page 14
Outside Air Kit ..................................Page 16
Chimney System ...............................Page 17
Offset Chimney Installation ...............Page 20
Angled Wall Radiation Shield ............ Page 22
Chimney Support Installation ............ Page 22
Chimney Chase And
Multiple Terminations......................Page 22
Installation Accessories ....................Page 23
Chimney Components Lists ..............Page 23
Replacement Parts ............................Page 25
Specifications ....................................Page 25
Clearances ........................................Page 25
Product Reference Information .........Page 26
THE FIREPLACE
INTRODUCTION
The Cambria™ wood-burning fireplace is a
mid-efficient, heat radiating fireplace. You will
receive a lifetime of comfort and enjoyment
from your fireplace provided it is installed,
maintained and operated properly.
• Please read these instructions and retain
this manual for future reference.
• Before beginning the fireplace installation,
consult the local authorities to obtain your
building permit and check your local building
codes. Install the fireplace only as described
in these instructions and using only Lennox
Hearth Products components.
• These appliances are not approved for
Manufactured Home installations.
• When planning a fireplace installation the
following information must be determined
before beginning.
1. Where the fireplace is to be installed.
2. The configuration of the chimney.
3. Optional components installation (fan,
hot air ducting, etc).
4. Electrical wiring.
5. Framing and finish details.
PARTS REQUIRED
• Fireplace model: Cambria
• 10” diameter chimney - Model Secure Temp
ASHT+,
or Nova Temp
steel chimney or 10” (AC) air-cooled manufactured by Security Chimneys International
only, including:
- Chimney lengths
- Elbows (where necessary)
- Associated components as per these
installation instructions
HT6103+
insulated stainless
• Outside air kit (included)
OPERATING THE FIREPLACE
Fuel
USE SOLID NATURAL WOOD FUEL ONLY. The
Cambria fireplace is designed to work best when
fueled with seasoned cordwood. Hardwoods are
preferred to softwoods since the energy content
of wood is relative to its density. Hardwoods will
result in a longer burning fire and less frequent
refuelling. A moisture content of 15% to 20%
(seasoned) is recommended. Wood that has
been cut and split and let to dry under a cover for
a period of one year will usually meet that criteria.
The required drying time will vary depending on
the climate. Wood that is packed tight together
will take longer to dry. Seasoned wood is darker
in color than wet wood and will have visible cracks
in the grain on the ends. Excessively wet wood
will be difficult to burn and will result in lower efficiency, increased creosoting and deposits on the
glass and in the chimney. Excessively dry wood
will burn well but will also have higher emissions
and shorter burning time.
Do not burn scrap or garbage, treated wood or
wood such as driftwood from the ocean which
has been exposed to salt or other chemicals.
Salt or chemicals can corrode the firebox and
chimney. Do not burn large amounts of paper,
cardboard, Christmas tree branches or building
construction materials. Intense firing with these
materials may overheat the fireplace, causing
damage to the unit, a fire or even possibly igniting a chimney fire if the chimney is creosoted.
Burning unapproved fuel, resulting in excessive
pollutants being emitted, may be prohibited and
subject to a fine or other penalty by the authority
having jurisdiction in your area.
Processed firelogs can be used. Use only firelogs that have been evaluated for the application
of fireplace and refer to firelog warnings and
caution markings on packaging prior to use.
3
First Fires
Before using the fireplace make sure to remove
the plastic wrapping on the door. Remove all
remaining glue with mild soap. Make sure the
doors are properly adjusted, thus avoiding color
change to finish due to overheat.
The first 5 or 6 fires should be small fires of short
duration (about 30 to 60 minutes). This will help
cure the refractory bricks. During the first few
fires of this appliance there may be some odor
and smoke due to the curing of the paint, dust
accumulation and burning off of lubricants used
in the manufacturing process. It may set off a
smoke alarm located in the same room. For
this reason the room should be well ventilated
for the first few fires.
HEAT OUTPUT
The Cambria™ fireplace is a mid-efficiency
fireplace. In spite of the heat that the Cambria
fireplace can deliver, it should not replace the
main source of heat in your home. This fireplace
will bring extra warmth and ambiance to your
home by distributing its heat as described further
in the manual.
FOR MAXIMUM HEAT OUTPUT, WE STRONGLY
RECOMMEND THE INSTALLATION OF HOT AIR
DUCTING SYSTEM (See Page 14).
Combustion Control and Chimney
Damper
The Cambria fireplace includes a combustion
air control that sets the flow of air entering
the firebox and control the fire. The fireplace
also includes a chimney damper that is not
a combustion control. The chimney damper
must always be in fully open position when
the fireplace is used and should be closed only
when all ashes are cold.
Open
Figure 1
Chimney
Damper
Closed
Front
Combustion Air
Control (B)
(A)
Closed
Open
Back
Open
Closed
Figure 2 - Accelerated Combustion
Medium Combustion
This is the recommended mode of operating
the Cambria fireplace and should be the one
normally used since it will deposit the least
amount of creosote on the glass and in the
chimney. The combustion air control must be
3/4 closed .The precise setting will depend on
many factors, including chimney length and the
moisture content of the wood.
For instance, a long chimney will necessitate
closing the damper more. To obtain the proper
combustion, close the damper completely, then
open it about 1/4” to 1/2”. Three medium size
pieces of cordwood burning on a bed of hot coals
will burn about 1-2 hours. Softwoods may be
burned using this method but the combustion
time will be substantially reduced.
FOR MAXIMUM HEAT OUTPUT, WE STRONGLY
RECOMMEND THE INSTALLATION OF THE
OPTIONAL HOT AIR DUCTING SYSTEM.
The chimney damper is controlled by the handle
inside the firebox (see Figure 1-A). It is in closed
position when the handle is visible (front) and
in the open position when not visible (pushed
back). The combustion air damper is controlled
by the lower handle (see Figure 1-B). The control
can be moved from open position at left all the
way to the close position at right.
This air combustion control should be in the
closed position when the fireplace is not in
operation. This will minimize air infiltration.
The combustion air control should be opened
before opening the doors to minimize the
possibility of back draft coming into the
room (see Figure 1-A). Also see Smoking
- Causes and Troubleshooting for more details
(on Page 5).
WARNING: The air combustion control
must be in the open position if the fireplace is operated with the doors open.
4
Accelerated Combustion
The maximum heat output for the Cambria
fireplace is achieved by burning with the door
closed and the combustion air opened. However, it will be necessary to reload with wood
every hour. This is the least efficient method
of burning the Cambria fireplace. Use caution
when burning with the combustion air control
wide open. Only burn cordwood in this manner.
Small dry pieces of softwood will burn very
intensely using this method and may damage
the firebox.
NOTE: DIAGRAMS & ILLUSTRATIONS ARE NOT TO SCALE.
Open
Figure 3 - Medium Combustion
Closed
Building a Fire
A) To start a fire, place several crumpled up
balls of newspaper in the firebox. Place small
dry pieces of kindling on top of the paper,
criss-crossing the kindling so that there are
air spaces in between. The kindling should
be placed at the center of the firebox so as
to allow for sufficient air circulation.
B) Open the dampers and light the newspaper.
Leave the doors partially opened (1 to 2
inches) to facilitate the start-up.
C) Once kindling fire is well established, cord-
wood can be added. Close the doors and
leave the combustion air control open in
accelerated combustion position.
D) When the fire burns well set the primary
control to the desired burn level.
The unit will burn best with 2-3 pieces of
cordwood spaced 1 to 2 inches apart and
allowing air to get under the fuel. Crisscrossing or arranging the fuel so that air
can get underneath will help the fire to get
started easily. The unit should be operated
with the air control fully open long enough
to get the cordwood well ignited.
WARNING: The Cambria™ fireplace was designed to allow a spectacular view of the fire.
The Cambria fireplace should never be filled
in excess (five big logs or more). Excessive
fire could damage the fireplace’s hearth and
refractory brick and void the warranty.
REFUELING FOR BEST PERFORMANCE
To reload the Cambria fireplace:
A) Completely open the combustion air control
(see Figure 2).
B) Open the doors about 1” and wait 5 seconds
until the airflow has stabilized. Then open
the doors completely, put the logs in and
close the doors.
C) Set the combustion air control to the desired
burn level.
Notes:
• For spectacular fire and optimization of
the fireplace efficiency, we recommend
that the wood load be placed as far back
as possible.
• It may be necessary to turn off any blower(s)
in operation during the refueling process in
order to minimise smoking in the room. It
is recommended to wait 15 to 30 minutes
before turning the blower(s) back on to
ensure successful rekindling.
SMOKING –
CAUSES AND TROUBLESHOOTING
To reduce the likelihood of smoke coming
into the room when opening the door, set the
combustion air controls to the left (“Accelerated Combustion”) before opening the door.
Your fireplace has been designed and tested
to provide smoke free operation. Occasionally,
there may be a small amount of smoking upon
lighting the fire until the chimney heats up. If
the fireplace continues to smoke it is probably
for one of the following reasons:
A. The doors are partially opened
When you open the doors, open them com-
pletely.
B. Negative pressure in the house
A fire needs air to burn. This air must be
replaced through the outside air duct (see
Outside Air on Page 16). When operating
the Cambria fireplace, open a nearby window
temporarily to check if there is adequate
replacement air supply.
C. Fans operating (e.g.: range hood)
Fans such as range hoods or bath fans draw
air out of the house and may actually cause a
negative pressure in the house. Turn off all
fans and open a nearby window to determine
if this is the cause of the problem.
D. Wet wood
Wet or tarred wood will smoulder and smoke
instead of burning properly. Your dealer can
help you determine if you have properly
seasoned wood for burning.
E. Dirty or blocked chimney
Check to make sure the chimney is clear and
clean. If dirty call a certified chimney sweep
or use a properly sized chimney brush to
clean.
F. Chimney not long enough
The minimum chimney height is 15 feet (4.6
m) not including the fireplace height. The
chimney must extend at least 3 feet (915
mm) above its point of contact with the roof
and at least 2 feet (610 mm) higher than any
roof or wall within 10 feet (3 m) of it. When
installed with offsets, the minimum chimney
height is 18 feet (5.5 m). Additional height
will increase draft and will decrease the
tendency to smoke.
G. Poor chimney draft
With no fire, there should be sufficient draft
to exhaust cigarette smoke introduced under
the baffle. Chimneys installed against an
outside wall without protection may generate back draft problems which will cause
start-up problems. To prevent this, open
a nearby window; roll up a piece of paper,
light it and hold it in the upper part of the
firebox to warm up the chimney. Wait until
the draft is sufficient, then start the fire.
H. Blower for central forced air kit
Make sure that the blower is at the “off”
position when you open the fireplace door
for reloading.
GAS LOG INSTALLATION
This fireplace is designed to allow the installation
of a gas burner. In such a case, the installation
must conform with the National Gas Code ANSI
Z223.1 and Z21.60. Warning: When using a
gas burner, it is mandatory to keep the chimney
outside air register opened.
This fireplace has provision for the installation
of a gas pipe and is intended only for connection
to a decorative gas appliance incorporating an
automatic shutoff device and complying with
ANSI Z21.60-M96/CGA 2.26-M96, Standard
for Decorative Gas Appliances for Installation
in Solid-Fuel Burning Fireplaces (reference
Clause 4.1.3 T).
1. Remove the 1 inch knock-out on the right
side of the fireplace and on the right side
refractory.
2. Drill a one inch hole in the hearth right side
coaxial to the refractory opening.
3. Assemble a rigid 3/8” N.P.T. iron pipe with
two 90º elbows. Make sure to have 5-11/16”
clearance between the two pipes (see Figure
4).
4. Through the hearth bottom or back openings
insert the mounted pipe through the side
of the firebox and the firebrick. Make sure
the top elbow is as close as possible to the
hearth to keep a minimum clearance to the
retractable door.
5. Insert a pipe through the 1 inch exterior
knock-out and fix it to the 90º elbow already
in place.
Note: In some regions, the use of a flexible gas
pipe is allowed. Consult your local authority.
5-11/16”
(145mm)
Figure 4
NOTE: DIAGRAMS & ILLUSTRATIONS ARE NOT TO SCALE.
5
IMPORTANT CAUTIONS
A. Do not block the hot air vents to the fire-
place as this will cause the fireplace to
overheat.
B. Never use gasoline, gasoline-type lantern
fuel, kerosene, charcoal lighter fluid, or
similar liquids to start or ‘freshen up’ a
fire in this fireplace. Keep all such liquids
well away from the fireplace while it is in
use.
C. Do not burn coal. The sulphur in coal will
corrode the firebox and chimney.
D. Keep combustible materials at least 48”
(1.2 m) away from the front of the fireplace
opening.
E. Never leave children unattended when
there is a fire burning in the fireplace.
F. Do not use the CAMBRIA as an incinerator
to burn paper, cardboard or construction
material such as pressed wood, plywood
or lumber. Use only untreated wood. Wood
protectors, metallic paper, coal, plastic,
waste, sulphur and/or oil will damage the
fireplace.
G. Do not burn driftwood which has been in the
ocean or salt water. The salt will corrode
the firebox and chimney.
H. Do not burn wood in the area in front of the
grate.
I. Do not allow the wood to smoulder or burn
without flame, since this will produce
excessive creosote in the unit
increased particulate emissions.
MAINTAINING YOUR FIREPLACE
Creosote - Formation and Need for Removal
When wood is burned slowly, it produces tar
and other organic vapors, which combine
with expelled moisture to form creosote. The
creosote vapors condense in the relatively
cool chimney flue of a slow-burning fire. As
a result, creosote residue accumulates on the
flue lining. When ignited this creosote makes
an extremely hot fire.
The chimney shall be inspected at least twice
a year during the heating season to determine
when a creosote buildup has occurred.
When creosote has accumulated it shall be
removed to reduce the risk of a chimney fire.
When the creosote accumulation is large, a
creosote fire in the chimney can damage the
chimney and overheat the surrounding wood
framing. Creosote formation in a chimney can
be minimized by making sure there is always
visible flame burning, avoid smouldering fires
and by proper refuelling techniques.
Chimney Maintenance - Regular chimney
inspection and maintenance combined with
proper operation will prevent chimney fires.
Keep your chimney clean. Do not allow more
than 1/16” (1.6 mm) creosote build up in your
chimney. The amount of creosote will depend
on variables such as frequency of use and type
of fire. We recommend that you:
6
as well as
A. Initially inspect the chimney system weekly.
From this, you will learn how often it will be
necessary to clean your chimney.
B. Have your chimney cleaned by a qualified
chimney sweep. If you wish to clean it yourself, we recommend using a stiff plastic or
non-metallic brush. If a metal brush is used,
its size should be slightly smaller than the
flue to avoid damaging the chimney. Do not
use a brush that will scratch the stainless
steel interior of the chimney.
Warning: The chimney damper must be opened
when sweeping the chimney to avoid ash and
creosote accumulation in the fireplaces air
circulation area.
C. Do not expect chemical cleaners to keep
your chimney clean. The rain cap can be
removed for inspection and/or cleaning of
the chimney. Using gloves, firmly grip the
upper portion of the rain cap. Turn the cap
and lift it off the chimney.
Dealing With a Chimney Fire
Regular chimney maintenance and inspection
can prevent chimney fires. If you have a chimney
fire, follow these steps:
1. IMPORTANT: Close the fireplace door and
the combustion air controls; this will stifle
the fire.
2. Alert your family of the possible danger.
3. If you require assistance, alert your fire
department.
4. If possible, use a dry chemical fire extinguisher, baking soda or sand to control the
fire. Do not use water as it may cause a
dangerous steam explosion.
5. Ensure that sparks and hot embers coming
out of the chimney are not igniting the roof.
6. Do not use the fireplace again until your
chimney and fireplace have been inspected
by a qualified chimney sweep, your dealer,
or a fire department inspector.
DISPOSING OF ASHES
Note: For better performances, we recommend
leaving 1/2 inch of ashes in the firebox.
Remove ashes only when the fire is out and
the ashes are cold (24 to 48 hours after the
fire is out). Do not leave the ashes in the house
as they give off carbon monoxide and other
toxic gases.
WARNING
Disposal of Ashes: Ashes should
be placed in a metal container
with a tight fitting lid. The closed
container of ashes should be
placed on a non-combustible floor
or on the ground well away from
all combustible materials, pending final disposal. If the ashes
are disposed of by burial in soil
or otherwise locally dispersed,
they should be retained in the
closed container until all cinders
have thoroughly cooled.
Refractory Brick Replacement
(refer to Figure 6)
The intense heat of the fire will normally cause
hairline cracks in the refractory brick. These
cracks can be minimized by proper curing as
described in First Fires on Page 4. They will
not normally diminish the effectiveness of the
refractory brick. If large cracks develop, then
the refractory should be replaced. To replace
the refractory bricks, follow these steps:
1. Remove the front refractory bricks
2. Remove the andirons
3. Remove the side refractory supports
4. Remove the side refractory bricks
5. Remove the back refractory brick
6. Remove the bottom refractory brick
To install the new refractory bricks, follow the
above steps in reverse.
DOOR FRAME FINISH CARE
Use a glass cleaner and a soft cloth to polish
the casing. Do not use abrasives such as steel
wool, steel pads or an abrasive polish for they
may scratch the frame’s finish.
Door Installation
(refer to Figure 5)
The doors on the Cambria fireplace are factory
installed. To remove the doors, remove the
finishing trim, then simply pull them up from
the hinges. The door adjustment has been set
at the factory. If the fit is still not perfect, you
can adjust the door using the hinge screws.
(See Figure 8, #1)
Figure 5
NOTE: DIAGRAMS & ILLUSTRATIONS ARE NOT TO SCALE.
1. Front Refractory Brick
2. Andirons
3. Side Refractory Supports
4. Side Refractory Bricks
5. Back Refractory Brick
6. Bottom Refractory
Figure 6
WARNINGS
• Use only a Lennox Hearth
Products glass doors, specifically designed for the
Cambria fireplace.
The fireplace cannot be oper-
•
ated without door or firescreen.
Consult your dealer to select
the correct replacement door
or firescreen.
• Important! To assure proper
alignment of glass doors:
Install this fireplace in a
square and plumb condition,
using shims as necessary at
sides and/or bottom.
DOOR ADJUSTMENT
The doors are factory adjusted for proper air
tightness and fit. They may need to be readjusted
if the alignment has shifted in freight.
To readjust the door side to side position, unscrew the fireplace hinges or the door hinges.
Move the doors side to side until the top of the
two doors are aligned (Figure 7).
The gaskets’ air-tightness can be adjusted using the adjustment screw located on the slider
stoppers (see Figure 8). Turning the screws
clockwise will shorten the travel of the slider and
increase the pressure on the door side gaskets.
This may lead to the doors being harder to lock,
so a good adjustment must be found between
a good gasket seal and easy door lock (see
Figure 8, balloon #1).
The door lock can also be adjusted. Remove the
front refractory brick and loosen the two screws
in the middle front of the firebox bottom. Push
or pull on the handle of the door lock. Pushing
the handle will tighten the door seal in the center
of the fireplace (see Figure 9).
Door
Figure 7
NOTE: DIAGRAMS & ILLUSTRATIONS ARE NOT TO SCALE.
Door Hinges
1. Adjustment Screw (adjusts
Figure 8
Figure 9
tightness of door seal)
2. Slider Stoppers
Door Lock
Adjustment
Screws
Tighten
Loosen
Door Opening Adjustment
The doors opening angle can be adjusted. This
allows the doors to slide in the fireplace without
interference or friction with the finishing facing, which could damage the paint. The screws
located under the bottom hinges (Figure 11)
are used as door opening stops. Tightening or
loosening these screws will keep the door handle
from hitting the finishing facing and won’t allow
friction between door gasket and hearth when
the door is fully pushed in the fireplace.
Bearing Maintenance
The doors are assembled on retractable sliders using roller bearings for easy movement.
Cambria fireplace has been designed to ensure
that bearing maintenance is easy. Remove
the decorative facing by unscrewing the four
decorative caps and the four screws holding
the facing. Remove the doors by lifting them up
from the female hinges (see Figure 5). Remove
the slider stoppers (see Figure 8) and take the
slider bearing assembly out of the fireplace.
Unscrew the nuts to change the bearings
(see Figure 10). Original bearing contains no
grease to resist heat. Adding grease or changing bearings with greased bearing may cause
a malfunction of the slider. Please use Lennox
Hearth Products replacement parts only (see
Page 25 for part numbers).
7
GLASS CARE
Gasket Replacement
Figure 10
Unscrew the
nuts to change
the bearings
Glass Replacement
The glass used for the Cambria™ fireplace is
a high temperature ceramic glass (1400°F). If
the glass breaks or cracks, it must be replaced
with an identical ceramic glass. Tempered
glass or ordinary glass will not withstand the
high temperatures of the Cambria fireplace.
Replacement glass should be purchased from
a Lennox Hearth Products dealer (see “Replacement Parts” on Page 25).
Do not operate the unit with cracked or broken
glass.
Glass Cleaning
The Cambria fireplace is designed to keep the
glass clean under normal operating conditions. If the Cambria fireplace is operated
continuously with the combustion air controls
closed, the glass will tend to get dirty unless
the fuel, firebox and glass are maintained at
hot temperatures. To clean the glass, there
are a number of specially designed cleaners
to remove creosote. Your authorized Lennox
Hearth Products dealer can recommend a suitable cleaner. Regular household glass cleaners
will not clean creosote. Do not use abrasives
such as steel pads, steel wool or oven cleaner
as they will scratch the glass.
Remove the doors from the unit (see Door
Installation on Page 6) and lay them on a clean
nonabrasive surface. To replace the gasket, first
remove all of the old gasket and gasket cement.
Make sure that the surface is totally clean before
applying new cement (a high temperature silicone caulking rated at 500°F / 260°C, is suitable)
or adhesion problems may result. Apply gasket
cement to the gasket channel and install the
new gasket. This replacement part is available
from your Lennox Hearth Products dealer in the
dimensions shown in Table 1.
Gasket Part # Dimensions Qty
Around
the door
PR-SR1823N 58-3/4”
5/8” dia.
2
Table 1
Andirons
The Cambria fireplace is equipped with andirons designed to keep logs from falling into
the door. It must be replaced only by Lennox
Hearth Products andirons available from your
dealer. No other andirons, log retainer or log
support is sold or recommended by Lennox
Hearth Products.
Door Angle (hang)
Adjustment Screw
Figure 11
DO NOT USE CHEMICAL GLASS CLEANERS
ON PAINTED SURFACES AS IT MAY CAUSE
THE PAINT TO PEEL.
CAUTION : DO NOT ALLOW WINDOW CLEANER
TO GET IN CONTACT WITH DOOR GASKET OR
PAINT ON FACADE OR DOOR. ONCE CLOSED,
CONTACT OF GLASS CLEANER WITH THE
FIREPLACE FACADE CAN PROVOKE PAINT
PEELING OFF.
8
NOTE: DIAGRAMS & ILLUSTRATIONS ARE NOT TO SCALE.
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