Lennox Bella Installation And Operation Manual
INSTALLATION AND OPERATION MANUAL
US
Portland
Free-Standing
Pellet Stove
Save These Instructions
For Future Reference
P/N 775,226M, Rev. A, 02/2009
Report No. 116-S-53-2
Pellet Stove
Model Bella™
A French manual is available upon request. Order P/N 775,226CF.
Ce manuel d’installation est disponible en francais, simplement en faire la demande. Numéro de la pièce
775,226CF.
These appliances must be properly installed and operated in order to prevent the possibility
of a house re. Please read this entire manual before installation and use of this pellet
fuel-burning room heater. Failure to follow these instructions could result in property
damage, bodily injury or even death. Contact your local building or re ofcials
to obtain a permit and information on any installation requirements and
inspection requirements in your area.
WARNINGS
• 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.
• Lennox™ pellet-burning appliances are designed for use as a supplemental heater. They are not intended for continuous use as a primary
heat source.
IMPORTANT SAFETY AND WARNING
INFORMATION
READ THIS MANUAL IN ITS ENTIRETY AND UNDERSTAND THESE RULES TO FOLLOW FOR SAFETY
WARNING
Improper installation, adjustment, alteration, service or maintenance can cause injury or property
damage. Refer to this manual. For assistance or
additional information consult a qualified installer
or service agency.
WARNING
Do not attempt to alter or modify the construction of
the appliance or its components. Any modification
or alteration may void the warranty, certification
and listings of this unit.
1. DO NOT CONNECT THIS UNIT TO A CHIMNEY FLUE SERVING
ANOTHER APPLIANCE.
2. Do not connect this appliance to air ducts or any air distribution system.
3. DO NOT INSTALL A FLUE DAMPER IN THE EXHAUST VENTING
SYSTEM OF THIS UNIT.
4. Do not use class B venting intended for gas appliances as a
chimney or connector pipe on a pellet-fired appliance.
5. The minimum clearances must be maintained for all combustible surfaces and materials including; furniture, carpet,
drapes, clothing, wood, papers, etc. Do not store combustibles
within this clearance space (see Clearances on Page 5).
6. INSTALLATION DISCLAIMER - It is imperative that the exhaust
venting system be installed correctly and sealed gas-tight
(not allowing exhaust to leak). Follow the vent manufacturer's
instructions for proper installation. Since Lennox Hearth
Products has no control over the installation of your stove,
Lennox Hearth Products grants no warranty, implied or stated
for the installation or maintenance of your stove, and assumes
no responsibility for any consequential damage(s).
7. Burning any kind of fuel consumes oxygen. If outside air is
not ducted to the appliance, ensure that there is an adequate
source of fresh air available to the room where the appliance
is installed.
8. The appliance will not operate using natural draft, nor without
a power source for the blower and fuel feeding systems.
9. Never use gasoline, gasoline-type lantern fuel, kerosene,
charcoal lighter fluid, or similar liquids to start or “freshen
up” a fire in this heater. Keep all such liquids well away from
the heater while it is in use.
10. The authority having jurisdiction such as municipal building
department, fire department, fire prevention bureau, etc.
should be consulted before installation to determine the
need to obtain a permit.
2
11. APPROVED FUEL: This appliance is designed specifically
for use only with pelletized wood pellets or a mixture of up
to 50% corn mixed with a minimum of 50% pelletized wood
pellets. This mixture of wood pellets and corn should be
evenly pre-mixed before being placed in the units hopper.
.
This appliance is designed and approved for the burning of
wood residue pellets with up to 3% ash content. This appliance is NOT approved to burn cardboard, nut hulls, cherry
pits, etc. regardless if it is in pellet form. Failure to comply
with this restriction will void all warranties and the safety
listing of the stove. Consult with your Lennox Hearth Products
dealer for more information on approved pellet fuels.
12. CONTINUOUS OPERATION: When operated correctly, this
appliance cannot be overfired. Continuous operation at a
maximum burn can, however, shorten the life of the electrical components (blowers, motors, and electronic controls),
and is not recommended. Typical approved operation would
include running at the low to mid range setting with occasional
running on the maximum setting during the coldest periods
of the winter. DO NOT OVER-FIRE THIS STOVE. Follow all
instructions regarding the proper use of this stove.
13.CAUTION: NEVER PUT FINGERS NEAR AUGER. This appliance
is equipped with a hopper lid switch, which is designed to stop
the auger when the hopper lid is opened. NEVER DISCONNECT
OR BYPASSED THIS SWITCH FOR ANY REASON. Pellet fuel is fed
to the Burn-pot by a screw auger. This auger is driven by a
high torque motor. The auger is capable of causing serious
harm to fingers. Keep pellets in the hopper at all times and
keep fingers away from auger. The auger can start and stop
automatically at any time while the stove is running.
14. CAUTION: HOT WHILE IN OPERATION. An appliance hot
enough to warm your home can severely burn anyone touching
it. Keep children, pets, clothing and furniture away. Contact
may cause skin burns. Do not let children touch the appliance.
Train them to stay a safe distance from the appliance.
15. FLY ASH BUILD-UP: For all wood pellet fuel-burning heaters,
the combustion gases will contain small particles of fly-ash.
This will vary due to the ash content of the fuel being burned.
Over time, the fly-ash will collect in the exhaust venting
system and restrict the flow of the flue gases. The exhaust
venting system should be inspected regularly and cleaned
as necessary.
16. SOOT FORMATION: Incomplete combustion, such as occurs
during startup, shutdown, or incorrect operation of the room
heater will lead to some soot formation which will collect in
the exhaust venting system. A precautionary inspection on
a regular basis is advisable to determine the necessity of
cleaning. The exhaust venting system should be inspected
regularly and cleaned as necessary.
17. 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 noncombustible 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 been thoroughly cooled.
18. The instructions must be strictly adhered to. Do not use
makeshift methods or compromise in the installation.
19. Do not abuse the door glass by striking, slamming or similar
trauma. Do not operate the stove with the glass removed,
cracked or broken.
20. SAVE THESE INSTRUCTIONS.
21. See the listing label on the appliance.
CONGRATULATIONS!
TESTING / LISTING
When you purchased your new pellet stove, 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 pellet stove.
Thank you for selecting a Lennox Hearth Products stove as the answer
to your home heating needs.
TABLE OF CONTENTS
Important Safety Information . . . . . . . . . . . . . . . . . . . . Page 2
Packaging List . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Page 3
Testing / Listing, EPA . . . . . . . . . . . . . . . . . . . . . . . . . . . Page 3
Using this Manual . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Page 3
Planning Your Installation . . . . . . . . . . . . . . . . . . . . . . . Page 3
Selecting a Location . . . . . . . . . . . . . . . . . . . . . . . . . . . . Page 4
Floor Protection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Page 4
Clearances . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Page 5
Installation Tips . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Page 7
Manufactured Home Installation . . . . . . . . . . . . . . . . . . Page 8
Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Page 9
Venting Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . Page 12
Care and Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . Page 19
Fuel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Page 24
Routine Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . Page 25
Specifications. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Page 31
Component Definitions . . . . . . . . . . . . . . . . . . . . . . . . . Page 32
Wiring Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Page 33
Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Page 34
Replacement Parts List & Diagrams . . . . . . . . . . . . . . . Page 36
Optional Accessories . . . . . . . . . . . . . . . . . . . . . . . . . . . Page 41
Safety / Listing Label . . . . . . . . . . . . . . . . . . . . . . . . . . . Page 42
Product Reference Information Page 44
Listing: The listing laboratory is OMNI-Test Laboratories, Inc., Portland, Oregon. The report number is 116-S-53-2 for model Bella pellet
stove.
Testing: In accordance with the specifications and procedures
• Listed and tested to ASTM E1509 & ULC C1482 / ULC S627 for installations as a freestanding room heater
• The safety/listing label is located on the bottom side of the hopper
lid. Please read this safety label carefully. It contains important
information about installation and operation of this appliance.
• This appliance is tested and listed for residential installation according
to current national and local building codes.
• This appliance is on the Colorado Approved pellet stoves list.
EPA (Environmental Protection Agency)
Status: EPA Certified (method 28) -
Lokee Testing Laboratory, Sumner, Washington to rigorous emissions
standards, and has been certified by the Environmental Protection
Agency.
This appliance has been tested by
USING THIS MANUAL
Please read and carefully follow all of the instructions found in this
manual. Please pay special attention to the safety instructions provided
in this manual.
PRODUCT IS SUBJECT TO CHANGE WITHOUT NOTICE
PLANNING YOUR INSTALLATION
Questions To Ask Local Building Official
A correct installation is critical and imperative for reducing fire hazards and
perilous conditions that can arise when wood pellet burning appliances
are improperly installed. The installer must follow all of the manufacturers’ instructions.
WARNING
This installation and operation manual will help you obtain a safe, efficient, dependable installation for your appliance and vent system.
PLEASE READ AND UNDERSTAND THESE INSTRUCTIONS
BEFORE BEGINNING YOUR INSTALLATION
PACKAGING LIST
The assembled pellet stove model Bella™ is packaged with an accessory package which contains the following:
One - Power Cord
One - Installation And Operation Manual
One - Warranty
One - Leg Bolt Down Kit (needed for manufactured homes only)
Check all local building and safety codes before
installation. The installation instructions and appropriate code requirements must be followed exactly
and without compromise. Alterations to the stove are
not allowed. Do not connect the stove to a chimney
system serving another stove, appliance, or any air
distribution duct. Failure to follow these instructions
will void the manufacturers warranty.
The installation of this appliance must conform to local codes and applicable state and federal requirements. Familiarity with these requirements
before installation is essential. Important considerations to discuss with
local building officials include:
Applicable codes (i.e. Uniform Mechanical Code, State or Regional
1.
Codes).
Electrical codes:
In USA, NEC, ANSI/NFPA 70 – Latest Edition
In Canada, CSA C22.1 – Latest Edition
3
. Power Supply Requirements (continued)
These requirements must be met unless otherwise specified by state
or local authorities.
Power Cord - The power cord must be plugged into a standard, 120
•
Volt, 60 Hz grounded electrical outlet with proper ground and polarity.
The power cord must be routed to avoid contact with any of the hot
or sharp exterior surface areas of the stove.
Power Supply - The units maximum draw during start-up mode will be
•
3.5 Amps and 360 Watts while the igniter is on in the first 8 minutes
of operation. Maximum draw on the unit once in burn mode is 1.8
Amps and 115 Watts. Minimum draw on the unit once in burn mode
is 1.5 Amps and 90 Watts.
Manufactured Home Installations - When installed into a manufactured
•
home, the appliance must be electrically grounded to the steel chassis
(see Page 8, Manufactured Home Requirements).
• Existing Chimneys
• Pellet Fuel Storage
• Aesthetic Considerations
• Roof Design (rafter locations and roof pitch)
• Room Traffic
• Proximity to Combustibles
• Electrical Wiring
CAUTION
These appliances are very heavy. The use of a heavy
duty escalara (stair step hand truck) is recommended
for lifting the appliance.
WARNING
Electrical grounding instructions: This appliance is
equipped with a three-prong (grounding) plug for
your protection against shock hazard and should be
plugged directly into a properly grounded three-prong
receptacle. Do not cut or remove the grounding prong
from this plug. Do not route power cord under or in
front of appliance.
2. Local amendments
3. Is a permit required - cost. You may wish to contact your insurance
company to ask if they require this.
4. If outside combustion air is required
5. Rooms where the installation is not allowed
Surge Protectors
A surge protector is recommended to ensure the stove’s electrical components are not damaged due to a surge in the electrical supply. Only
high quality protectors should be used - low quality protectors do not
provide the protection needed.
Smoke Detectors
Since there are always several potential sources of fire in any home, we
recommend installing smoke detectors. If possible, install the smoke
detector in a hallway adjacent to the room (to reduce the possibility of
occasional false activation from the heat produced by these appliances).
If your local code requires a smoke detector be installed within the same
room, you must follow the requirements of your local code. Check with
your local building department for requirements in your area.
Installation / Maintenance Standards
National Fire Protection Association – The primary NFPA standard that
refers to installation and maintenance of pellet stoves and venting is
NFPA 211 – Latest Edition: Chimneys, Fireplaces, Vents, and Solid Fuel
appliances.
SELECTING A LOCATION
The design of your home and where you place your stove will determine
its value as a source of heat. This type of appliance depends primarily on
air circulation (convection) to disperse its heat, and therefore, a central
location is often best. There are other practical considerations, which
must be considered before a final selection of locations is made. Some
of which includes:
NEGATIVE PRESSURE WARNING
This appliance is not designed to be operated in a negative pressure. Very
airtight homes with large kitchen exhaust fans, or homes with furnace
cold air returns located in close proximity to the stove may create negative pressure in the same room as the heating appliance. This can create
dangerous condition, drawing combustion by-products into the home. Be
sure your home has adequate makeup air to eliminate negative pressures
caused by the above-mentioned sources. Outside air connected to the
appliance probably will not resolve such a problem as the stove is not the
source of negative pressure. Lennox Hearth Products accepts no liability
for damages resulting from negative pressures described here.
Ventilation Requirements - Provide adequate air for combustion. The fresh
air requirements of this appliance must be met within the space where it
will be installed. Ventilation is essential when using a solid-fuel-burning
heater. In well insulated and weather tight homes, it may inhibit the rate
the exhaust flows through the venting system (caused by a shortage of
air in the home). The lack of air is caused by many common household
appliances which exhaust air from the home (such as a furnace, heat
pump, air conditioner, clothes dryer, exhaust fans, fireplaces, and other
fuel burning appliances). Also, the combustion process of this heater
uses oxygen from inside the dwelling. If the available fresh air delivery
in the dwelling is insufficient to support the demands of these appliances, problems can result (i.e. excessive negative pressure will result
in performance problems. To correct this problem it may help to open
a window (preferably on the windward side of the house) or install an
outside combustion air duct to the appliance.
FLOOR PROTECTION
This appliance requires noncombustible floor protection (the hearth pad
or alternate floor protection material does not require a thermal rating).
A noncombustible floor protector must fully cover the area beneath the
appliance as illustrated in Figure 1.
If the floor protection is to be stone, tile, brick, etc., it must be mortared
or grouted to form a continuous noncombustible surface. In Canada, if a
chimney connector / venting extends horizontally over the floor, protection
must also cover the floor under the connector / venting and at least 2” (51
mm) to either side (recommended but not required in the US).
4
Back
Front
0*” (0 mm)
Corner Installations - Clearance to Combustibles
Combustible Wall
3”
(76mm)
Min.
Floor Protector
*Note: Refer to Page 4 for chimney/venting floor protection
requirements and recommendations.
Top View
6” (152mm) Min.
(76mm)
Figure 1 - Floor Protection Requirements
CLEARANCES
3”
Min.
3*”
(76mm)
Top View
Combustible Wall
3-1/2”
(89mm)
*Note:
Refer to pipe Manufacturer's installation instructions
for minimum pipe clearances.
Figure 2 - Left Wall Horizontal Venting
3*”
(76mm)
3-1/2” (89mm)
Standard residential or manufactured home installation. These appliances
require the following minimum clearances to combustibles:
Minimum Clearances To Combustibles
IMPORTANT
•
Minimum clearances specified may not allow
for ease of operation and maintenance (please
take this in to account when planning the instal
lation). If installed to the minimum clearances,
removal of the appliance may be necessary for
servicing.
•
Recommended clearance zone from the front of the
appliance to combustibles is 4 feet minimum.
•
Clearances to combustibles for the appliance
can only be reduced by means approved by the
regulatory authority.
-
Combustible Wall
Combustible Wall
3-1/2”
(89mm)
Refer to pipe Manufacturer's installation instructions
*Note:
for minimum pipe clearances.
Top View
Figure 3 - Right Wall Horizontal Venting
3-1/2” (89mm)
NOTE: DIAGRAMS & ILLUSTRATIONS ARE NOT TO SCALE
5
Corner Installations - Clearance to Combustibles
8-11/16”
(221mm)
Horizontal Vent
Combustible Wall
3-1/2” (89mm)
3*”
(76mm)
Vertical Vent
Combustible Wall
Top View
3-1/2”
(89mm)
*Note: Refer to pipe Manufacturer's installation instructions
for minimum pipe clearances.
Figure 4 - Vertical Venting
Parallel and Alcove Installations - Clearance to
Combustibles
8-11/16”
(221mm)
Vertical Vent
Combustible Wall
2” (51mm)
Combustible Wall
5”
(127mm)
Top View
5”
(127mm)
Figure 6 - Horizontal Vent, Parallel or Alcove
Alcove Installations - Clearance to Combustibles
Minimum clearance from back of stove to back wall = 2 inches
Minimum clearance from sides of stove to wall = 5 inches
Minimum clearance from exhaust pipe to side wall = 8-11/16 inches
Minimum height of ceiling = 60 inches
Minimum alcove width = 33-3/4 inches
MAXIMUM depth of alcove = 48 inches
Combustible Wall
Combustible Wall
4-7/8*” (124mm)
Combustible Wall
5”
(127mm)
Refer to pipe Manufacturer's installation instructions
*Note:
Top View
3*”
(76mm)
5”
(127mm)
Combustible Wall
for minimum pipe clearances.
Figure 5 - Vertical Venting, Parallel or Alcove
INSTALL VENT AT CLEARANCES SPECIFIED BY THE VENT
MANUFACTURER.
60”
(1524mm)
Minimum
48”
(1220mm)
Max.
33-3/4”
(857mm)
Minimum
Figure 7 - Alcove Size Requirements
6
NOTE: DIAGRAMS & ILLUSTRATIONS ARE NOT TO SCALE
INSTALLATION TIPS
INSTALLATION TIPS
Select Your Installation Type
GOOD INSTALLATION *
Horizontal Installation
(Direct Vent - Outside Wall)
No natural draft. Wind
pressures may affect operation
a: PL-Vent Pipe / Pellet Vent (w/stainless interliner)
b: Stainless Steel flex liner may be used inside existing flue
REQUIRES 3”
DIAMETER STANDARD
PL-VENT / PELLET PIPE
With listed termination kit. If
installation requires in excess of
15’ of pipe, it is recommended a
4” diameter pipe be used.
BETTER INSTALLATION
Vertical & Horizontal Installation
(Up and Out)
Some natural draft aids venting. Wind
pressures may still affect operation
VENTING TYPE
or chimney (woodstove replacement applications)
CAUTION: Do not use Type B-Vent Pipe
MANUFACTURED
HOME
Requires outside air for com-
bustion. Use a galvanized or
stainless steel pipe for duct.
Minimum duct size 3” I.D.
BEST INSTALLATION
Vertical Installation
(Straight Up)
Natural draft improves operation and
negative effects from wind
CLEARANCES TO
COMBUSTIBLES
Ensure all clearances are main-
tained in accordance to instruc-
tions contained on product
safety label and in compliance
with pipe/venting requirements.
POWER SUPPLY
PLEASE REVIEW THIS ENTIRE
INSTALLATION AND OPERA-
TION MANUAL FOR ADDITIONAL
INSTRUCTIONS.
* In horizontal vent installations It is recommended that when an appliance is vented directly through a wall, a minimum of 6 feet (1.83 M) of vertical pipe is
installed to create some natural draft. This will reduce the possibility of smoke or odor entering the dwelling during appliance shutdown or loss of power.
Must have proper polarity and
be grounded.
Note: Use of an extension
cord may adversely effect the
performance of your unit.
SEAL ALL
VENTING JOINTS
Use RTV
(high temp silicone)
7
MANUFACTURED HOME INSTALLATION
In addition to the standard installation instructions, the following instructions may be required by local, state or federal building codes:
• Installation should be in accordance with the Manufactured Home and
Safety Standard (HUD), CFR 3280, Part 24.
• The stove must be permanently bolted to the floor
lag screws. The lag screws must be an adequate length to extend
through the hearth pad and into the floor as shown in Figures 8 and 9.
Install the lag screws as shown in these figures. Two lag screws must
be used.
•
Connecting the Bella™ stove to outside combustion air is optional,
except in manufactured home installations and when required by local
building codes. An outside air inlet must be provided for combustion
and be unrestricted while unit is in use. Use a galvanized or stainless
steel pipe for the duct (the outside air inlet on the stove is 3” diameter).
The air intake on the exterior of the home should always be located
substantially below the flue termination. The Inlet shall remain free
of obstruction while unit is in operation and constructed in a manner
so as to prevent material from dropping into the inlet or into the area
beneath the dwelling. The inlet shall also have a screen with openings
not larger than 1/4" to prevent rodents from entering. See Figure
21.
• Stove must be permanently electrically grounded to the steel chassis
of the home using a 8 GA copper wire and a serrated or star washer
(to penetrate paint or protective coating to ensure grounding). The
location selected for ground attachment to the stove must be dedicated
for this purpose. Grounding must comply with NFPA-70-latest edition
standards, CSA C22.1-latest edition in Canada, as well as any local
codes.
• See Pages 12 through 18
for additional information on venting require-
ments.
• WARNING: DO NOT INSTALL THIS STOVE IN A SLEEPING ROOM IN
A MANUFACTURED HOME.
•
CAUTION: THE STRUCTURAL INTEGRITY OF THE MANUFACTURED
HOME FLOOR, WALLS, CEILING/ROOF MUST BE MAINTAINED.
using 1/4" diameter
Lag Screw
Bracket
Attach the provided brackets to the stove using a 5/16" bolt. Install lag
screws through the holes in the bottom of the brackets to secure the legs
to the floor as shown here.
Figure 9 - Manufactured Home Installation
Manufactured Home Exhaust Vent Pipe Installation Guidelines
This stove is approved for venting with Type L and Type PL pellet vent pipe
listed to UL 641 and ULC S609. We recommend the use of venting products manufactured by Security Chimneys International. The pipe should
extend at least 3 feet above the part of the roof through which it passes.
The top of the pipe should be at least 2 feet above the highest required
elevation of any part of the manufactured home within 10 feet of the pipe
(see Page 14, Manufactured Home Chimney Height Requirements).
Chassis
Floor
Lag Screws
Figure 8 - Manufactured Home Installation
If the exhaust vent exits the manufactured home at a location other than
the roof, and exits at a point 7 feet or less above the ground level on which
the manufactured home is position a guard or method of enclosing the
pipe shall be provided at the point of exit for a height of up to 7 feet. The
openings, if any, in this guard shall not allow a 3/4” rod to pass through.
A 1/2” rod could pass through but should not be able to touch the pipe
when inserted through the opening a distance of 4 inches.
Floor
Protector
8
NOTE: DIAGRAMS & ILLUSTRATIONS ARE NOT TO SCALE
INSTALLATION
G -
G.
I
I
Removing Appliance From Pallet
1. After removing the packaging from the stove, lift the hopper lid, and
remove all prepackaged items that were shipped in the hopper. Next,
open the stove door and remove all prepackaged items.
2. Using a 7/16" socket or wrench, remove the two lag bolts on either
side of the stove and remove brackets by sliding them towards the
center of the unit.
Installation of Leg Leveling Bolts
An optional leg leveling kit is available. In manufactured home installations a leg bolt down kit is also required (provided with stove). Install the
leveling legs and bolt down kits per the instructions provided in kits. See
Figure 11
and Page 41 for leveling leg kit ordering information.
H7638 Leveling Leg Kit (4 per pkg.) (ref. Form # 506033-21)
Figure 10 - Removing Stove From Pallet
Leveling Legs
Manufactured home installations will
also require a bolt down kit which
includes 2 tie down brackets (provided
with stove) (ref. Form # 506033-19)
Figure 11 - Leveling Legs
Leveling Legs
NOTE: DIAGRAMS & ILLUSTRATIONS ARE NOT TO SCALE
9
Installation Check List
Draft Adjuster - Adjustment Procedure
It is strongly recommended that you have an Lennox Hearth Products
dealer install your stove. If you install your stove yourself, you should
review your installation plan with an Lennox Hearth Products dealer.
Check list:
Check off each item as you proceed with the installation process.
q Read the ENTIRE stove installation section first
q Determine the appropriate measurements and locations for your
installation.
q Follow the installation directions in this manual.
q Be sure to pre-fit all items before you install, fasten, or set up the
appliance permanently.
qMeasure for exhaust (also outside air tube when applicable) and mark
the location. Place the unit in place to make sure it's correct before
cutting holes in your wall.
Prior to lighting your appliance:
q Review the safety precautions section.
q Review the pellet FUEL section.
q Review and follow the Operating Instructions.
q Plug power cord connector into corresponding connector on the back
of appliance (see Figure 12 showing connector location).
The Bella™ pellet stove has a draft adjuster located at the left side of the
stove directly in front of the combustion blower. Should the stove installation require long runs of vent pipe, a situation may be created where
excessive combustion air is flowing through the firebox and causing
the fuel to burn faster than it can be delivered to the burn pot. Should
this happen, the draft can be slowed down by the adjuster. The stove is
shipped with the adjuster half open. To increase or decrease the draft;
using a 5/16" open end wrench, loosen the bolt (see Figure 13) and move
the adjuster handle toward the center of the stove to decrease and away
from the center of the stove to increase the draft. Retighten the screw
when adjustment is complete.
Draft Adjuster
The draft adjuster controls the amount of combustion air that is delivered
to the firebox (see Figure 13).
It will be necessary to monitor the appearance of the flame during the first
4-8 bags of pellets. If the flame is smoky red or orange with evidence of
soot at the top of the flame, the draft adjuster will need to be adjusted
to deliver more combustion air. If the flame is "short" at the higher burn
rates and appears to burn the pellets out of the pot faster than they can
be resupplied, or there are significant variations of flame height within a
single burn setting, the draft adjuster may need to be adjusted to deliver
less combustion air.
After the draft adjuster is adjusted, re-evaluate the appearance of the
flame. It may be necessary to continue adjusting it in increments until
proper combustion is achieved (the flame should become a brighter
yellow and begin to “dance”).
Back of Stove
Plug power cord into connector on back of stove.
Figure 12
After you have begun operation of your appliance:
q Review the routine cleaning / maintenance information.
q Enjoy the warmth from your new Lennox Hearth Products pellet
stove!
Once the draft adjuster has been properly set, and if the routine maintenance is performed as needed, the draft adjuster should not require
readjustment unless you are changing from a premium grade pellet to a
standard or high ash pellet, in which case the draft adjuster may need to
be moved outward from center of the stove to help prevent the accumulation of ash in the burn pot.
Draft Adjustor
A
Figure 13 - Adjustment of Combustion Air
10
NOTE: DIAGRAMS & ILLUSTRATIONS ARE NOT TO SCALE
Draft Adjuster Adjustment Guidelines
Thermostat installation
Lack of Combustion Air:
By opening the draft adjuster, this will increase combustion air delivery.
Symptoms of insufficient combustion air include; unburned fuel, lazy
smoky or red / orange flame, excessive ash or soot, excessive buildup
on glass.
Contributing factors:
• High Altitude – Lack of oxygen
• Restrictive Venting (elbows, horizontal runs, cold external chimneys,
etc.)
• Dirty / Poor Quality Fuel.
• Lack of Maintenance
Note: Excessive amounts of fly-ash built-up in the burn pot, clinkers in
the burn pot or leakage of air (if the burn pot is not properly seated) will
starve the fire for air. See Routine Maintenance, on Pages 25 through
30
for information on cleaning requirements.
Excessive Combustion Air:
Adjusting the draft adjuster to a more closed position will reduce the
combustion air delivery. Symptoms of excessive air include; fuel burns
too quickly (results in smoking or smoldering pellets), white to yellow
flame, etc. If the draft adjuster is open too far, the burning pellets will lift
off the bottom of the burn pot and fly up into the air much like popping
corn does. Another flame characteristic of a draft adjuster that is open
too far is a flame that has significant variation in height on any single
burn setting.
The Bella pellet stove can be operated manually or by thermostat. The
stove comes from the factory wired to operate manually - see control
board operation on Pages 19 through 21. A low voltage thermostat can
be installed on the stove. To install the thermostat:
1. Unplug the stove from the electrical outlet. Open the control board
access door. Locate the black wiring block at the top right on the back
side of the control board (see Figure 14). Loosen the two screws
B at the back of the block, and remove the U shaped jumper wire A
protruding from the block.
2. Insert a wire from the thermostat into one of the slots from which the
jumper wire was removed. Repeat this process for the other thermostat
wire.
Retain the jumper wire for future reinstallation. See Page 21 for thermostat operation instructions.
IMPORTANT NOTE: Install the thermostat per the manufacturers instructions, provided with the thermostat. Failure to follow manufacturers
instructions could result in a malfunction. Pay special attention to the
thermostat location requirements. If the location requirements are not
adhered to the appliance, erratic operation or failure may occur.
Do not mount the thermostat where it may be affected by:
• Radiant heat from the stove, fireplaces, sun or other heat
sources.
• Drafts or dead spots behind doors or in corners.
• Hot or cold air from ducts.
Contributing factor:
• Venting system providing excessive draft.
• Dry, hot burning fuel
Correct Combustion Air / Proper Burn Characteristics:
When the draft adjuster is correctly set, the burning pellets should move
(wiggle) around slightly and the flame should be bright yellow and stay
at relatively even height.
Outside Air Installations
Connecting the Bella™ pellet stove to outside combustion air is optional,
except in manufactured (mobile) home installations and when required
by local building codes. The stove’s air intake will accept 3” ID pipe to
accommodate outside air installations. The air intake on the exterior of the
home should always be located substantially below the flue termination
and must remain free of obstruction. The inlet must also have a screen
with openings not larger than 1/4" to prevent rodents from entering.
B
A
Wiring Block
Remove jumper if
Thermostat IS to
be used
Leave jumper on, if
thermostat is NOT
used
A = Jumper Wire
B = Screws
Figure 14 - Back of Control Board
NOTE: DIAGRAMS & ILLUSTRATIONS ARE NOT TO SCALE
11
VENTING REQUIREMENTS
It is recommended that only an Lennox Hearth Products dealer install your
pellet stove. The specified installation requirements must be followed to
ensure conformity with both the safety listing of the appliance and local
building codes. All clearances, installation instructions and precautions
specified by the vent manufacturer must be followed.
Selecting a Location
Review the appliance clearance requirements before installing the venting
system (see Pages 5 and 6). Position the appliance far enough away
from walls to allow adequate room for servicing. Choose the appliance
location with the least amount of interference with the house framing,
plumbing, wiring, etc.
Preferred Vent Configuration
For the best performance, we recommend a vent run design which runs
vertically and terminates above the roof line. This design will allow natural
draft to improve the flow of flue gases and will aid in combustion and
stove performance.
Type of Pipe
This stove is approved for venting with Type L and Type PL pellet vent
pipe (sometimes referred to as “L-Vent pellet vent”, listed to UL 641 or
ULC S609). We recommend the use of venting products manufactured by
Security Chimneys International. Connect the pellet vent pipe or the “tee”
to the flue collar using a minimum of three screws and seal as specified
in “Pipe/Liner Joint Requirements” on this Page. Do not use class B gas
chimney or single wall chimney as a substitute.
Size of Pipe
These pellet stoves are approved for use with the following vent sizes: 3”
(75 mm) standard, or 4” (100 mm), see Page 15 - for determining correct
size vent. When 4” pipe is used: for horizontal vent installations use a 3”
(75 mm) to 4” (100 mm) adapter - available from vent manufacturer. For
vertical installations use a 3” (75 mm) to 4” (100 mm) “tee” - available
from vent manufacturer.
Offsets
In every installation, a single or double clean-out “tee” is recommended
for every ninety-degree offset (this tee will help collect ash residue and
will allow for routine cleaning without the need to disconnect sections
of pipe).
Pipe Clearances/Requirements
See pipe manufacturers instructions for installation of venting components
and clearances. Follow pipe manufacturers installation precautions for
passing pipe through a combustible wall or ceiling (i.e. use an approved
thimble).
Notes
• Offsets and horizontal runs accumulate fly-ash and soot which reduces
the exhaust flow and performance of the stove.
• Total Offsets in venting system should not exceed 270° total in direc
tion change.
• Maximum Vertical Vent - 30 feet (9.14 M)
• Horizontal Runs - The maximum total horizontal run must not exceed
10 feet (3.1 meters).
• Horizontal run of pipe requires 1/4” (7 mm) rise per foot.
• Pellet vent pipe requires 3” (75 mm) clearance from outside of pipe
unless otherwise specified by vent manufacturer - all diameters: 3” (75
mm) and 4” (100 mm). A support bracket must be installed every 4
feet (1.2 m) of pellet vent pipe on the exterior wall of the house unless
otherwise specified by vent manufacturer.
• It is not recommended to terminate exhaust vent on the prevailing wind
side of the house.
• In Canada, where the venting may pass through a wall, or partition of
combustible materials, the installation shall conform to CAN/CSA-B365.
When installing the wall thimble and other venting components, follow
the vent manufacturers instructions. Maintain an effective vapor barrier at the location where the chimney or other component penetrates
12
to the exterior of the structure.
Pipe/Liner Joint Requirements
Silicone sealant and three screws are required to secure the first vent connection to the appliance flue collar. Seal the remaining vent sections per
the vent manufacturers instructions and secure all sections with 3 screws
minimum per section. ALL horizontal joints must be sealed gas-tight (air
tight, sealed connection). Use RTV high temperature silicone or Interam,
if necessary, to provide a complete seal between vent sections.
Connection to Masonry Chimney through a Wall
Be sure to verify the construction of a masonry chimney, as it may have
combustible framing.
Approved liner when relining Masonry or Factory-Built Fireplaces is
2100HT (degree F.) liner listed to UL 1777 or ULC S635.
Connection to an Existing Class A Chimney
A chimney adapter can be used to make the connection from 3” (75
mm) or 4” (100 mm) pellet vent pipe (listed to UL 641 or ULC S609) to
existing UL chimney system. Verify with the pipe manufacturer that your
pipe brands will interconnect.
Horizontal Vent Installations
On all horizontal vent installations (short, horizontal runs with no vertical
pipe); care should be taken when choosing a location for terminating the
vent. It is not recommended to directly vent the exhaust on the prevailing wind side of the house. It is recommended that when an appliance is
vented directly through a wall, a minimum of 6 feet (1.83 M) of vertical
pipe should be installed to create some natural draft. This will reduce
the possibility of smoke or odor entering the dwelling during appliance
shutdown or loss of power.
Vent Termination
Do not terminate vent in an enclosed or semi-enclosed area such as:
carports, garage, attic, crawl space, under a deck, porch, narrow walkway,
closely fenced area, or any location that can build up a concentration of
fumes such as a stairwell, covered breezeway etc.
Vent surfaces can get hot enough to cause burns if touched. Adults
should supervise children when they are in the area of a hot stove.
Non-combustible shielding or guards may be required.
Termination Cap
The termination of the outside chimney of the pellet stove shall be located
in accordance with the following:
A. Higher than 3 feet (.92 m) above any forced air inlet (air conditioner,
etc.) located within 10 feet (3 m).
B. Not less than 4 feet (1.2 m) below, 4 feet (1.2 m) horizontally from or
1 foot (3.1 m) above any gravity air inlet (door, window, etc.) which
flue gases could reenter the dwelling.
C. Not less than 2 feet (.6 m) from combustible materials such as an
adjacent buildings, fences, protruding parts of the structure, roof
overhang, plants and shrubs, etc. and not less than 7 feet (2.1 m)
-
above grade when located adjacent to the public sidewalks (access).
The final termination of the exhaust system must be configured so that
flue gases do not jeopardize the safety of people passing by, overheat
combustible portions of nearby structures or enter the dwelling.
D. Not less than 3 feet (.92 m) below an eave (maximum overhang of 3
feet (.92 m) or any construction that projects more than 2” (51 mm)
from the plane of the wall.
E. The distance from the bottom of termination to grade is 12” (305 mm)
minimum. This is conditional upon plants and nature of grade surface: Be
careful to choose a location for the vent termination which does not expose
people or shrubs to high heat from the exhaust gases. The exhaust gases
are not hot enough to ignite grass, plants and shrubs located in the vicinity
of the termination although they should be a minimum of 3 feet (.92 m)
away. The grade surface under the termination must not be a lawn.
F. Since sparks may escape from the exhaust pipe of any stove, use
caution when positioning the vent pipe. Refer to pipe manufacturer’s
instructions when installing and terminating the exhaust. The vent pipe
should be horizontal and never run the pipe in a downward direction
(recommend a 1/4” [7 mm] rise per foot horizontal).
Vent Termination Locations
Vent Terminal
Area Where Terminal Is Not Permitted
(From Eave)
Vertical Terminal
Vertical Terminal
Fixed Closed
Able To Open
A
A
B
B
B
B
C
D
E
F
G
H
J
K
L
M
N
24”
(610mm)
B
Air Supply Inlet
24”
(610mm)
A = Clearance above grade, veranda, porch, deck, or bal-
cony (min. 12”/30cm).
B = Clearance to window or door that may be opened (min.
12”/30cm above - 48”/1.2m below and to the side).
C = Clearance to permanently closed window *(min.
D = Vertical clearance to ventilated soffit located above
12”/30cm).
the terminal within a horizontal distance of *(min.
24”/60cm) from the centerline of the terminal (min.
22”/55cm) check with local code.
E = Clearance to unventilated soffit *(min. 12”/30cm).
F = Clearance to outside corner *(min. 12”/30cm).
G = Clearance to inside corner *(min. 12”/30cm).
H = Not to be installed above a meter/regulator assembly
within *(min. 36”/90cm) horizontally from the center-
line of the regulator.
J = Clearance to service regulator vent outlet *(min.
72”/1.8m).
K = Clearance to non-mechanical air supply inlet to build
ing or the combustion air inlet to any other appliance
Figure 15
*(min. 48”/1.2m).
L = Clearance to a mechanical air supply inlet *(min.
120”/3.1m).
M = **Clearance above paved sidewalk or a paved driveway
located on public property *(min. 84”/2.1m).
N = ***Clearance under veranda, porch, deck, or balcony
(min. 12”/30cm).
Notes:
* Local codes or regulations may require different clear
ances.
** 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
NOTE: DIAGRAMS & ILLUSTRATIONS ARE NOT TO SCALE
-
fully open on a minimum of two sides beneath the
floor.
-
13
Chimney Height Requirements - Site Built Residential Home
Less than
10 Feet (3 m)
10 Feet
(3 m)
3 Feet (914 mm)
Minimum
2 Feet (610 mm) Min.
3 Feet
(914 mm)
Min.
m = meter
mm = millimeter
The vent termination height required is - USA, 1-foot minimum; Canada
3-feet minimum above the roof penetration point as illustrated below (Ref.
USA - National Standard, NFPA 211-latest edition and Canada National
Standard CSA B365-01-latest edition. Check with your local building
official for additional requirements for your area.
Termination Cap
Must Be Listed To
UL 641 or ULC S609
To pass inspection in nearly any jurisdiction, the chimney must meet both
safety and exhaust flow requirements. The (3’ by) 2’ by 10’ rule applies
to both masonry and factory-built chimneys.
* Ref. USA - National Standard, NFPA 211-latest edition and Canada
National Standard CSA B365-01-latest edition. Vents installed with a
listed cap shall terminate in accordance with the terms of the cap’s
listings.
Termination When Connected to Masonry Chimney or Existing
Class A Chimney
USA 1 Foot Minimum
CANADA 3 Feet Minimum
Termination height is
measured above the
highest point where
it passes through the
roof surface.
Figure 16 - Site Built Residential Home Chimney Height Requirements
Chimney Height Requirements - Manufactured Homes
The chimney must extend 3 feet (.92m) above the level of roof penetration and a minimum of 2’ (.61m) higher than any roof surface within 10
feet (3m) (see Figure 17). Check with your local building officials for
additional requirements for your area.
Requires A Listed Termination Cap *
Top Of Flue Must Be 2’
Higher Than Any Part Of
Roof Within 10’ Horizontal
Top Of Flue Must Be
3’ Higher Than Highest Point Of Roof
Penetration
A flexible corrugated chimney liner has much greater resistance to the
flow of flue gases than does a rigid liner. For this reason we recommend
that a larger, 4” liner be used on vertical runs exceeding 15 feet or that
rigid venting be used. See Figure 18.
If a flexible corrugated chimney liner is used, it must be fully extended
to eliminate any sagging and to improve the exhaust flow.
Listed Pellet Vent
1’ Section of PL Vent
(listed to UL 641 or
ULC S609)
3” or 4” liner
(listed to UL 1777
or ULC S635)
Termination Cap
Chase Cover
Termination When
Connected to Masonry
Chimney or Existing
Class A Chimney
Figure 18 - Existing Chimney Termination
Figure 17 - Manufactured Home Chimney Height Requirements
14
NOTE: DIAGRAMS & ILLUSTRATIONS ARE NOT TO SCALE
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