Lenoxx Electronics Stove Optima 3 FS User Manual

INSTALLATION AND OPERATION  
MANUAL  
FREESTANDING  
AND INSERT  
PELLET FIRED  
STOVES  
Freestanding Model  
AdvantageOptima2 FS *  
Freestanding Model  
RETAIN THESE  
INSTRUCTIONS  
FOR FUTURE  
REFERENCE  
AdvantageOptima3 FS *  
Insert Model, Advantage Optima3 INS not shown  
* Shown with Decorative Log Option  
These appliances must be properly installed and operated in order to  
prevent the possibility of a house fire. Please read this entire owner's  
manual before installing and using your pellet stove. Failure to follow  
these instructions could result in property damage, bodily injury or even  
death. Contact your local building or fire officials to obtain a permit and  
information on any installation requirements and inspection require-  
ments in your area.  
P/N 775097M, Rev. E, 12/03  
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TABLE OF CONTENTS  
Important Warnings ................................................ 2  
Testing / Listing, EPA, Using this Manual................ 3  
Planning Your Installation..................................... 4-9  
Manufactured (Mobile) Home Installation ................9  
Installation ........................................................ 10-21  
Care and Operation .......................................... 22-27  
Routine Maintenance........................................ 28-33  
Specifications.................................................... 34-36  
Definitions ...............................................................37  
Wiring Diagram .......................................................38  
Troubleshooting................................................ 39-41  
Replacement Parts List / Diagrams.................. 42-47  
Optional Accessories..............................................48  
Installation Tips.......................................................49  
Simple Operating Instructions.................................50  
Safety / Listing Label and EPA Label ............... 51-52  
Ownership Records ................................................53  
CONGRATULATIONS ON THE PURCHASE OF YOUR  
NEW PELLET STOVE MANUFACTURED BY LENNOX  
HEARTH PRODUCTS.  
When you purchased your new pellet stove, you  
joined the ranks of thousands of concerned indi-  
viduals 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 enjoy-  
ment available from your new pellet stove.  
It is our goal at Lennox Hearth Products to provide  
you, our valued customer, with an appliance that will  
ensure you years of trouble free warmth and pleas-  
ure.  
Thank you for selecting a Lennox Hearth Products  
stove as the answer to your home heating needs.  
Sincerely,  
All of us at Lennox Hearth Products  
PACKAGING LIST  
The assembled pellet stove model Optima 2 FS, Optima 3  
FS and Optima 3 INS are packaged with an accessory  
package, which contains the following:  
One - Installation and operation instructions manual.  
One - Warranty.  
One - Power cord.  
One- Control board – Optima 3 INS only.  
One - Screw, #8 x ½” tek (for mounting control board)  
– Optima 3 INS only.  
One - Grate scraper.  
One - Video  
LISTING / TESTING  
Listing: The listing laboratory is ITS (Intertek Testing Ser-  
vices) and the listing mark is Warnock Hersey.  
Testing: In accordance with the specifications and proce-  
dures listed in UL 1482 & ASTM E1509 for solid fuel room  
heater, this appliance has been independently tested to UL,  
ULC and CSA standards, report # 6658 for Advantage  
Optima 2 and report #476-1244 for AdvantageOptima 3.  
UL 1482 states requirements for installations as a free-  
standing room heater, or hearth insert for masonry or listed  
factory built (zero clearance) fireplaces. The safety-listing  
label is located on an inside hopper surface of the pellet  
stove. Please read this safety label carefully. It contains  
important information about installation and operation of  
this appliance. This appliance is tested and listed for resi-  
dential installation according to current national and local  
building codes as:  
One - Lower trim  
One - Wall thermostat.  
One - Roll of thermostat wire.  
Two- Leveling bolts, ¼-20 x 3” – Optima 3 INS only.  
One - Door Handle (removable)  
One - Fireplace Warning Label (see page 8)  
Surround Kit (For Optima 3 INS Only)  
(Purchased separately, see page 48) kit is packaged with:  
One - Top surround panel.  
One - Left surround panel.  
One - Right surround panel with door.  
One - Left side trim.  
One - Right side trim.  
One - Top trim.  
A Freestanding Room Heater  
A Manufactured (mobile) Home Heater  
Two - Corner keys (“L” shaped surround trim brackets).  
USING THIS MANUAL  
EPA (Environmental Protection Agency)  
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. The home-  
owner’s Care and Operation Instructions included here  
will assure you have many years of dependable and en-  
joyable service from your appliance.  
Status: EPA Exempt - Pellet appliances that are de-  
signed with the combustion air supply exceeding the 35  
to 1 (by weight) ratio are exempt from EPA regulations  
and are “non-affected facilities.”  
PRODUCT IS SUBJECT TO CHANGE WITHOUT NO-  
TICE.  
PAGE 3  
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PLANNING YOUR INSTALLATION  
QUESTIONS TO ASK LOCAL BUILDING OFFICIAL  
A correct installation is critical and imperative for reduc-  
ing fire hazards and perilous conditions that can arise  
when wood pellet burning appliances are improperly  
installed. The installer must follow all of the manufac-  
turers’ instructions.  
INSTALLATION / MAINTENANCE STANDARDS  
National Fire Protection Association – The primary  
NFPA standard that refers to installation and mainte-  
nance of pellet appliances and venting is NFPA 211:  
Chimneys, Fireplaces, Vents, and Solid Fuel appli-  
ances, Jan. 2000.  
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:  
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 cen-  
tral location is often best. There are other practical con-  
siderations, which must be considered before a final  
selection of locations is made.  
1.  
Applicable codes (i.e. Uniform Mechanical Code,  
State or Regional Codes)?  
Electrical codes:  
In USA, NEC, ANSI / NFPA 70-2002.  
In Canada, CSA C22.1  
Existing Chimneys  
Pellet Fuel Storage  
Aesthetic Considerations  
Roof Design (rafter locations & roof pitch)  
Room Traffic  
Proximity to Combustibles  
Electrical Wiring  
Power Supply Requirements – The power cord  
must be plugged into a standard, 115 volt, 60 Hz  
grounded electrical outlet. The approximate  
power requirement is 362 Watts, and will peak up  
to 736 Watts for approximately 6 minutes when  
the self-igniter is operating (it will turn off 2 min-  
utes after flame detection). The power cord must  
be routed to avoid contact with any of the hot or  
sharp exterior surface areas of the stove. When  
installed into a manufactured (mobile) home, the  
appliance must be electrically grounded to the  
steel chassis (see page 9, Manufactured [Mobile]  
Home Requirements). These requirements must  
be met unless otherwise specified by state or lo-  
cal authorities.  
The installation of this stove will require some research.  
Once your options are determined, consult with your  
local building department who will be able to give you  
the necessary installation requirements for your area (Is  
a building permit required? Rooms where installation  
may not be allowed, etc.).  
WARNING: CHECK ALL LOCAL BUILDING AND  
SAFETY CODES BEFORE INSTALLATION. THE IN-  
STALLATION INSTRUCTIONS AND APPROPRIATE  
CODE REQUIREMENTS MUST BE FOLLOWED EX-  
ACTLY AND WITHOUT COMPROMISE. ALTERA-  
TIONS TO THE STOVE ARE NOT ALLOWED. DO  
NOT CONNECT THE STOVE TO A CHIMNEY SYS-  
TEM SERVING ANOTHER STOVE, APPLIANCE, OR  
ANY AIR DISTRIBUTION DUCT. FAILURE TO FOL-  
LOW THESE INSTRUCTIONS WILL VOID THE  
MANUFACTURERS WARRANTY.  
WARNING: ELECTRICAL GROUNDING IN-  
STRUCTIONS:  
EQUIPPED  
THIS  
WITH  
APPLIANCE  
IS  
A
THREE-PRONG  
(GROUNDING) PLUG FOR YOUR PROTEC-  
TION 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 UN-  
DER OR IN FRONT OF APPLIANCE.  
SMOKE DETECTORS  
Since there are always several potential sources of fire  
in any home, we recommend installing smoke detec-  
tors. If possible, install the smoke detector in a hallway  
adjacent to the room (to reduce the possibility of occa-  
sional false activation from the heat produced by the  
stove). If your local code requires a smoke detector be  
installed within the same room, you must follow the re-  
quirements of your local code. Check with your local  
building department for requirements in your area.  
2.  
3.  
Local amendments?  
Is a permit required - cost?  
(you may wish to contact your insurance com-  
pany to ask if they require this).  
Is outside combustion air required?  
Rooms where the installation is not allowed?  
4.  
5.  
PAGE 4  
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PLANNING YOUR INSTALLATION  
FLOOR PROTECTION - Optima 2 FS  
Top View of Model: Optima 2 FS  
This appliance requires noncombustible floor protec-  
tion. If the floor protection is to be stone, tile, brick, etc.,  
it must be mortared or grouted to form a continuous  
non-combustible surface. If a chimney connector ex-  
tends horizontally over the floor, the protection must  
cover the floor under the connector and at least 2" to  
either side.  
Up to * 6"/153mm  
minimum  
Rear  
6"/  
153mm  
min.  
6"/  
A noncombustible floor protector must fully cover the  
area beneath the appliance and extend 6” to the front,  
6” to the sides, and up to 6" from the back as illus-  
trated on this page.  
153mm  
min.  
Front  
*Note: When installed at clearances less than 6”, floor pro-  
tection is only required to extend to the wall.  
6"/  
153mm  
min..  
PAGE 5  
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PLANNING YOUR INSTALLATION  
TM (inches) = kM x TL  
.84  
FLOOR PROTECTION - Optima 3 FS  
The floor protector must  
Top View  
TM (inches) = 1.92 x .375 (3/8”)  
.84  
meet or exceed the  
*Up to 6”  
minimum thermal re-  
1
53 mm minimum  
quirements as defined  
on this page (see Floor  
Protection/Hearth Ex-  
tension Using Alternate  
Material As Floor Pro-  
tector). If the floor pro-  
tection is to be stone,  
tile, brick, etc., it must  
be mortared or grouted  
to form a continuous  
Answer using k: 2.29 x 0.375” = 0.858 = ~7/8”  
7/8” thickness (minimum) DurockCement will be required.  
Using the r formula:  
TM (inches) = 1.19 x TL  
rM  
6”/  
153mm  
min.  
6”/  
153mm  
min.  
TM (inches) = 1.19 x 375 (3/8”)  
.52  
Answer using r: 2.29 x 0. 375” = 0.858 = ~7/8”  
7/8” thickness (minimum) DurockCement will be required.  
noncombustible  
sur-  
face. If a chimney con-  
nector extends horizon-  
tally over the floor, pro-  
tection must also cover  
the floor under the connector and at least 2" (51 mm) to either  
side.  
At times it is important to know what combination of materials  
are acceptable for use as floor protection. The “R values” are  
used to determine acceptable combinations of materials be-  
cause “R values” are additive where r and k values are not.  
6”/153mm  
minimum  
“R value” = 1 = r x thickness of material used  
k
The floor protector must fully cover the area beneath the appli-  
ance and extend 6” to the front, 6” to the sides, and 6” from the  
back as shown in the illustration to the right (Note: When installed  
at clearances less than 6”, the floor protection is only required to  
extend to the wall).  
Example: Given that the required “R value” for a suitable floor  
protector used must be equal to or greater than “R” = r x TL =  
1.19 x .375” = .45.  
Listed Material  
Specified  
Minimum  
Thickness  
TL  
Thermal Values  
FLOOR PROTECTION / HEARTH EXTENSION USING  
ALTERNATE MATERIAL AS FLOOR PROTECTOR (also  
see Floor Protection above for freestanding models and  
Hearth Requirements, page 8 for the insert model)  
The hearth pad or alternate material used as a floor/hearth  
protector must be constructed of a durable noncombustible  
material having an equal or better thermal conductivity value  
(lower k value) of k = .84 BTU / IN FT2 HR °F or a thermal  
resistance that equals or exceeds r = 1.19 HR °F FT2 IN/BTU  
with a minimum thickness of 3/8”. With these values, deter-  
mine the minimum thickness of the alternate material required  
using the formula(s) and the table shown here (see chart -  
Approved Alternate Materials for Floor/Hearth Protection).  
k (per inch)  
.84  
r (per inch)  
1.19  
3/8” (.375)  
Listed Material →  
Approved Alternate Materials for  
Floor/Hearth Protection (**)  
Alternative  
Materials ↓  
Thermal Values  
* Minimum  
Thickness  
k (per inch)  
r (per inch)  
TM  
Kaowool M Board  
Micore 160  
.47  
.35  
2.13  
2.86  
2.18  
.52  
* 3/8”  
* 3/8”  
* 3/8”  
7/8”  
.46  
Micore 300  
Note: Any noncombustible material having a minimum thickness  
of 3/8” (10 mm) whose k value is less than .84 or whose r value  
is more than 1.19 is acceptable. If the alternate material used has  
a higher k value or lower r value will require a greater thickness of  
the material used. In some cases, if the k value is less or the r  
value higher, a thinner material may be used.  
1.92  
1.95  
2.30  
2.82  
DurockCement  
Hardibacker  
.51  
7/8”  
.44  
1 1/8”  
1 5/8”  
Hardibacker 500  
Cultered Stone  
Hearthstone  
Wonderboard  
.35  
3.23  
9.00  
5.00  
5.00  
12.5  
~20.0  
0.31  
0.11  
0.20  
0.20  
.08  
1 1/2”  
4 1/8”  
2 1/4”  
2 1/4”  
5 5/8”  
9”  
Methods of determining floor protection equivalents:  
To determine the thickness required for the alternate material  
when either the k value or r value is known, use either the k  
formula or r formula:  
Face brick  
Common brick  
Cement mortar  
Ceramic tile  
Marble  
Example: DurockCement is to be used for the floor protec-  
tion. How thick must this material be? The following formulas  
give the means of determining minimum thickness required.  
~.05  
Note: To convert inches to millimeters divide by .03937.  
TM = minimum thickness required for alternate material  
kM = k value per inch of alternate material  
TL = minimum thickness of listed material  
rM = r value per inch of alternate material  
* After minimum thickness is calculated, the thickness can be  
no less than 3/8” (.375” / 10mm).  
(**) If the floor protector to be used is a noncombustible material  
and is NOT listed on the chart above, the manufacturer of the ma-  
terial must provide either the listed k-value per inch or r-value per  
inch and the minimum acceptable thickness will need to be calcu-  
lated per instructions on this page.  
Using the k formula:  
Minimum  
thickness of  
alternate  
material  
k-value (per Inch)  
of alternate material  
k-value (per inch)  
of listed material  
Specified min.  
thickness  
of listed  
=
x
material  
.
PAGE 6  
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PLANNING YOUR INSTALLATION  
Clearances to combustibles are determined from testing to applicable standards for allow-  
able heat transfer. The clearances allowed as shown here, do not take into account opera-  
tion or serviceability requirements.  
Rear Wall or Alcove – Optima 2 FS and Optima 3 FS  
CLEARANCES  
Optima 2 FS and Optima 3 FS - Standard residential or  
manufactured (mobile) home installation. These appli-  
ances require the following minimum clearances to com-  
bustibles:  
*
MINIMUM CLEARANCES TO COMBUSTIBLES  
Optima 2 FS  
Manufactured (Mobile) Home  
or Residential Installation  
Clearance to  
Combustibles  
Horizontal Flue – Di-  
rectly Through Wall  
inch / millimeter  
4” / 102 mm  
Interior Vertical Flue  
inch / millimeter  
4” / 102 mm  
9” / 229 mm  
A - Sidewall to unit  
B – Backwall to unit  
C – Sidewall to unit  
Corner  
*2” / 51 mm  
*2” / 51 mm  
*2” / 51 mm  
D – Max. Depth of  
Alcove  
24” / 610 mm  
24” / 610 mm  
Corner - Optima 2 FS  
E – Flue to Wall  
3” / 77 mm  
3” / 77 mm  
Measured to fuel hopper lid in alcove.  
Minimum Alcove Measurements - Height 48” / 1220 mm  
Width 31” / 788 mm  
*
Optima3 FS  
Manufactured (Mobile) Home  
or Residential Installation  
Clearance to  
Horizontal Flue – Di-  
rectly Through Wall  
inch / millimeter  
6” / 153 mm  
Interior Vertical Flue  
Combustibles  
inch / millimeter  
6” / 153 mm  
9” / 229 mm  
A - Sidewall to unit  
B – Backwall to unit  
C – Sidewall to unit  
Corner  
*2” / 51 mm  
*2” / 51 mm  
*2” / 51 mm  
*
D – Max. Depth of  
Alcove  
16” / 407 mm  
16” / 407 mm  
E – Flue to Wall  
3” / 77 mm  
3” / 77 mm  
Measured to fuel hopper in alcove.  
Minimum alcove measurements - Height 48” / 1220 mm  
Corner - Optima 3 FS  
Width 38” / 966 mm  
Minimum clearances specified may not allow for  
ease of operation and maintenance (please take  
this in to account when planning the installation).  
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.  
* The certified back wall clearance as shown on the  
listing label is 1" (see Safety / Listing Label) but for  
proper hopper lid operation in corner and parallel  
installations a 2" clearance is required.  
*
PAGE 7  
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PLANNING YOUR INSTALLATION  
MASONRY AND FACTORY BUILT FIREPLACES  
HEARTH / FLOOR PROTECTION - Optima 3 INS  
The area directly in front of the Optima 3 INS  
must be protected by a noncombustible material  
or a fireplace hearth or hearth extension as fol-  
lows:  
Combustible flooring must be protected by  
non-combustible material in Canada and 10  
millimeter (3 / 8 inches) millboard or equivalent  
non-combustible in U.S. extending beneath the  
heater and to the front as indicated or to the  
nearest permitted combustible material. See  
page 6 for requirements when using alternate  
material as hearth extension.  
The model Optima 3 INS is approved for installation into a solid  
fuel burning fireplace, either a masonry fireplace (built to UBC 37  
or ULC S628 standards) or an approved factory-built / zero  
clearance fireplace (built to UL 127 or ULC S610 standards).  
See pages 20 and 21 for additional information on venting.  
Minimum Fireplace Firebox Size  
Height  
20 1/8” / 512 mm  
32” / 814 mm  
Width @ Front  
(extends back 1 ½”)  
Width @ back  
Depth  
24 5/8” / 626mm  
17 ¾” / 452 mm  
24 5/8"  
Clean-out  
Tee  
The protected area must extend 6” to the front of  
the face of the Optima 3 INS.  
17 3/4"  
MINIMUM CLEARANCES TO COMBUSTIBLES  
inches / millimeters  
A - Insert to side wall  
B - Insert to side trim  
C - Hearth extension  
D - Insert to mantel  
E - Insert to top trim  
6” / 153 mm  
1” / 26 mm  
6” / 153 mm  
18” / 458 mm  
1” / 26 mm  
Recommended clear-  
ance zone from the  
front of the appliance  
to combustibles is 4  
feet minimum.  
32"  
Top View  
CAUTION: The fireplace in which the Optima 3 INS is to be  
installed must be thoroughly cleaned if it has been used to burn  
wood or synthetic logs. Have the chimney and all inside sur-  
faces of the fireplace brushed and vacuumed so that no soot,  
embers, or loose combustion deposits can be drawn into the  
heat circulation blower and blown into the living area. If any por-  
tion of the chimney system shows signs of structural or me-  
chanical weaknesses, such as: cracks, leaky joints, corroded or  
warped surfaces, the faulty portion must be repaired or replaced  
prior to installing this appliance.  
Side Wall  
Trim  
IMPORTANT: When installing the Optima 3 INS into a factory  
built fireplace or heatform, the air flow within and around the fire-  
place shall not be altered by the installation of the insert (i.e. DO  
NOT BLOCK louvers or cooling air inlet or outlet ports, circulating  
air chambers in a steel fireplace liner or metal heat circulator). The  
factory built firebox must accept the insert without modification  
other than removing bolted or screwed together pieces such as  
smoke shelf / deflectors, ash lips, screen or door tracks and  
damper assemblies. Any fireplace component, which is removed,  
must be retained so they can be reinstalled to restore the fireplace  
to its original operating condition. The removal of any part must  
not alter the integrity of the outer shell of the pre-engineered fire-  
place cabinet in any way. A Warning Label (provided with appli-  
ance) must be installed in the fireplace firebox so that it shall be  
visible upon removal of the fireplace insert (see Fireplace Warning  
Label, below). Use RTV high Temperature Silicone as an adhe-  
sive to affix the warning label.  
Side View  
Trim  
Mantel  
D
E
Fireplace Warning Label  
(provided in accessory package)  
THIS FIREPLACE HAS BEEN ALTERED TO ACCOMMO-  
DATE A FIREPLACE INSERT AND SHOULD BE IN-  
SPECTED BY A QUALIFIED PERSON PRIOR TO RE-  
USE AS A CONVENTIONAL FIREPLACE.  
PAGE 8  
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PLANNING YOUR INSTALLATION  
MANUFACTURED (MOBILE) HOME INSTALLATION  
Freestanding Models – Optima 2 FS and Optima 3 FS  
In addition to the standard installation instructions, the  
following instructions may be required by local, state or  
federal building codes:  
Stove must be permanently bolted to the floor.  
An outside air inlet must be provided for combustion  
and be unrestricted while unit is in use. Use a galva-  
nized or stainless steel pipe for the duct (the outside  
air inlet on the stove is 2" diameter).  
Stove must be permanently electrically grounded to  
the steel chassis of the home. The location selected  
for ground attachment to the stove must be dedicated  
for this purpose.  
See pages 14 through 19 for additional information on  
venting requirements.  
MANUFACTURED (MOBILE) HOME EXHAUST VENT  
PIPE INSTALLATION GUIDELINES  
Use only listed type “PL” pellet vent pipe. 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 (mobile) home within 10 feet of the  
pipe.  
If the exhaust vent exits the manufactured (mobile)  
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 (mobile) home is positioned. 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.  
Do not install appliance in a sleeping room.  
The structural integrity of the manufactured home  
floor, walls, ceiling and roof must be maintained.  
NOTE: The grounding of this product, at installation,  
must comply with NFPA-70 standards, CSA C22.1 in  
Canada, as well as any local codes.  
Models – Optima 2 FS and Optima 3 FS  
Bolt  
Floor Protector  
Floor  
Ground to Steel Chassis  
Chassis  
PAGE 9  
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INSTALLATION  
REMOVING APPLIANCE FROM PALLET  
1. After removing the packaging from the stove, lift the hop-  
per lid, and remove all pre-packaged items that were  
shipped in the hopper. Next, open the stove door and  
remove all pre-packaged items.  
2. Using a socket or open end wrench (7/16" for freestand-  
ing units and 3/8" for the insert), remove the pallet bolts  
which secure the unit to the pallet (located on each side  
of back corners and at the front under ash pan). See fol-  
lowing pictures.  
INSTALLATION CHECK LIST  
It is strongly recommended that you have an author-  
ized Lennox Hearth Products dealer install your  
stove. If you install your stove yourself, you should  
review your installation plan with an authorized Len-  
nox Hearth Products dealer.  
Check list:  
Check off each item as you proceed with the installa-  
tion process.  
Optima 3 INS  
Read the ENTIRE stove installation section first  
Read the Insert or Freestanding section (which-  
ever applies).  
Determine the appropriate measurements and  
locations for your installation.  
Follow the general installation directions under  
Stove Installation and the installation section ap-  
propriate to your stove.  
Use a 3/8" nut  
driver to remove  
the bolts on  
both  
brackets  
Be sure to pre-fit all items before you install, fas-  
ten, or set up the stove permanently.  
(located on each  
side of the in-  
sert back).  
Prior to lighting your stove:  
Review the Important Warnings section (page 2).  
Review Fuel Specifications (page 27).  
Review and follow instructions in the Care and  
Operation Section (pages 22 to 27).  
Plug power cord connector into corresponding  
connector on the back of appliance (see illustra-  
tions on page 13 showing connector locations).  
Side View of Optima 2 FS & Optima 3 FS  
(Removing Back Pallet Bolts)  
Note: Optima 3 INS – Route power cord behind  
side surround panel.  
Remove 1  
bolt on each  
side of stove  
back  
After you have begun operation of your stove:  
Review the routine cleaning / maintenance informa-  
tion.  
Enjoy the warmth from your new Lennox Hearth  
Products pellet stove!  
(Insert Only) It is important to level the appliance. In  
some installations such as a recessed firebox floor (if  
the existing fireplace floor is lower than the hearth),  
install the 2 leveling bolts (1/4-20 x 3” long) into the  
threaded holes at the rear base of the Optima 3 INS.  
Adjust bolts until appliance is level.  
Note: The pallet bolt at the front of appliance is located un-  
der the ash pan (this will require removing the ash pan. See  
Ash Pan on pages 28 and 29 for removal instructions). See  
following picture (freestanding unit shown).  
Front View - Removing Front Pallet Bolt  
Stove or Insert Front  
With the ash pan  
removed, remove  
center bolt.  
PAGE 10  
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INSTALLATION  
INSTALLING SURROUND ASSEMBLY - Optima 3 INS  
(to be done after venting system is installed)  
The surround kit (purchased separately) comes with a  
set of metal panels that enclose the fireplace opening  
when fitted together. There is also a trim assembly that  
frames the surround assembly to give it an attractive fin-  
ished appearance. Put the surround assembly together  
according to the following instructions.  
Locate damper rod on left side of the Optima 3 INS. Ro-  
tate angled arm of rod so it is pointing down. Remove  
damper knob and set aside.  
7. Install the left-hand panel onto the left side of Optima  
3 INS body by sliding the 2 flanges on side of panel  
into corresponding slots on the Optima 3 INS.  
8. Reach behind left surround panel and rotate damper  
arm so that end is inserted into the upper right hand  
slot of left surround panel (see illustration on page 12,  
Optima 3 INS).  
1. Remove panels from package.  
2. Open the hopper lid on Optima 3 INS so it is out of  
the way for when panels are installed.  
9. Reinstall damper knob by threading it onto end of  
damper rod.  
3. Install the control board onto the right side panel (with  
door) using the TEK screw (#8 x ½”) provided.  
4. Position the power cord so that it will be behind either  
the right or left side surround panel when they are in-  
stalled.  
5. Install right side surround panel onto right side of the  
Optima 3 INS body by sliding the 2 flanges on side of  
panel into corresponding slots on the Optima 3 INS.  
6. Connect the wiring harness from the Optima 3 INS  
into corresponding connector on control board.  
10. Set the top surround panel in place over the two side  
panels. Position the 2 tabs on bottom of top surround  
panel so they slide into corresponding clips on the  
Optima 3 INS. Connect the top surround panel to the  
side panels by pressing pins from side panels into  
corresponding holes on top panel.  
11. Remove the surround trim from its packaging. As-  
semble it together using the corner keys (“L” shaped  
brackets) provided. Slide assembled trim over the top  
surround panel and slide it down over the side pan-  
els.  
12. Push the Optima 3 INS back into place so the sur-  
round is flush with the face of the hearth.  
PAGE 11  
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INSTALLATION  
Optima 3 INS (Only) – Install damper rod knob as ex-  
plained on page 11.  
Damper Adjustment  
It is very important to preset your damper prior to burn-  
ing your pellet stove.  
Damper - Air Control Handle – Freestanding Units  
Damper is factory set to a gap as  
specified below. Follow Damper  
Adjustment Guidelines on page 26.  
Left  
Surround  
Panel  
For less air, slide  
damper knob to the  
right (or) for more air,  
slide knob to the left.  
More Air  
Less Air  
1 5/8" – Optima 3 FS  
1 1/2" – Optima 2 FS  
To adjust, use  
3/32" allen wrench  
to loosen set collar.  
a
Adjustment Procedure: Loosen setscrew on set collar  
(see above picture), then adjust in ¼" increments until  
optimum combustion air flow is achieved. For less air  
push in and for more air pull out. After adjustment, posi-  
tion set collar against side panel and tighten setscrew.  
Damper  
Knob  
Adjustment Procedure: The damper knob should be  
positioned in the center of the oblong slot for the aver-  
age installation (see illustration above). If more or less  
air is needed, then adjust in ¼" increments until opti-  
mum combustion air flow is achieved (see Damper Ad-  
justment Guidelines on page 26).  
Damper Locations  
See ‘Opening Side Panels’, page 33 for instructions on  
opening the side panels for models Optima 2 FS & Op-  
tima 3 FS. See ‘Installing Surround Assembly’ for in-  
structions on side surround panel access for model Op-  
tima 3 INS.  
Optima 2 FS - The damper control handle is located on the  
right-hand side panel.  
Optima 3 FS - The damper control handle is located on the  
left-hand side panel.  
Optima 3 INS - The damper control handle is located on the  
left surround panel.  
PAGE 12  
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INSTALLATION  
THERMOSTAT INSTALLATION:  
NOTE: Always Disconnect Power Before Performing The Thermostat Installation.  
A 24 volt wall thermostat and 20 feet of 18-gage thermostat wire is included in your stoves accessory package. It is rec-  
ommended that the thermostat and thermostat wire be installed by an authorized Lennox Hearth Products dealer.  
Installation Steps:  
1. Unplug stove power cord from the wall outlet.  
2. Locate the thermostat terminal block (see illustrations below).  
3. Loosen the two terminal screws on the terminal block and remove the jumper.  
4. Connect the two wires from your thermostat to the terminals (one per terminal). Ensure that the purple wires from the  
harness remain connected to the terminal block and tighten the terminal screws. Make sure the wires are firmly con-  
nected to the thermostat.  
5. Plug in the stove and you are ready to operate with your thermostat!  
IMPORTANT: IF THE WALL THERMOSTAT PROVIDED IS NOT USED, THE JUMPER IS REQUIRED FOR THE  
STOVE TO OPERATE.  
Terminal Block for Thermostat  
Model: Optima 3 INS  
(on right side of insert when viewed from the front)  
Leave Jumper on, If Thermostat Is Not Used  
Th  
Remove Jumper if Thermostat Is To Be Used  
Terminal Block  
for Thermostat  
Jumper  
Power Cord  
Connector  
Model: Optima 3 FS  
Model: Optima 2 FS  
(viewed from stove back)  
Terminal Block  
for Thermostat  
Power Cord  
Connector  
Terminal Block  
for Thermostat  
Power Cord  
Connector  
PAGE 13  
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INSTALLTION  
VENTING REQUIREMENTS  
Horizontal Runs - The maximum total horizontal run  
It is recommended that only an authorized 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.  
must not exceed 10 feet (3.1 meters).  
Horizontal run of pipe requires 1/4” / 7 mm rise per foot.  
Pipe Clearances / Requirements – See pipe manufac-  
turers 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).  
Selecting a Location (Freestanding Models)- Review  
the appliance clearance requirements before installing  
the venting system (see page 7). 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.  
Notes:  
All pellet vent pipe requires 3” (75mm) clearance from  
outside of pipe unless otherwise specified by vent manu-  
facturer.  
A support bracket should be installed every 4’ (1.2m) of  
pellet vent pipe on the exterior wall of the house unless  
otherwise specified by vent manufacturer.  
Preferred Vent Configuration – For the best perform-  
ance, we recommend a vent run design which runs verti-  
cally and terminates above the roofline. This design will  
allow natural draft to improve the flow of flue gases and  
will aid in combustion and stove performance.  
Pipe / Liner Joint Requirements - All pipe joints must  
be secured with a minimum of 3 screws. ALL horizontal  
joints must be sealed gas tight (air tight, sealed connec-  
tion). Use High Temperature RTV silicone with a rating of  
at least 570° F (969° C), or Interam to provide a complete  
seal at the flue collar and on all joints.  
Type of Pipe - This stove requires type “PL” (pellet vent  
pipe, sometimes referred to as “L-Vent pellet vent”),  
which conforms to UL standard 641. 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 chim-  
ney or single wall chimney as a substitute.  
Connection to Masonry Chimney through a Wall  
(Freestanding Models) - Be sure to verify the construc-  
tion of a masonry chimney, as it may have combustible  
framing.  
Size of Pipe -These pellet appliances are approved for  
use with the following vent sizes: 3” (75mm) standard, or  
4” (100mm). See page 16 for determining correct size  
vent to use. Use a 3” (75mm) to 4” (100mm) adapter  
(Cat. No. 14M81) or a 3” (75mm) to 4” (100mm) “tee” in  
order to run 4” (100mm) pipe.  
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 (Free-  
standing Models) - A chimney adapter can be used to  
make the connection from 3” / 75mm or 4” / 100mm pellet  
vent pipe to existing UL chimney system. Verify with the  
pipe manufacturer that your pipe brands will interconnect.  
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).  
Horizontal-Vent Installations - On all horizontal-vent  
installations (short, horizontal runs with no vertical pipe);  
care should be taken when choosing a location for termi-  
nating 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 8’ (2.5m) 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.  
Note: 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 direction change.  
PAGE 14  
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INSTALLTION  
VENT TERMINATION  
Site Built Residential Home  
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.  
Chimney Height Requirements  
The vent termination height required is - USA, 1-foot  
minimum; Canada 3-feet minimum above the roof pene-  
tration point as illustrated below (Ref. USA - National  
Standard, NFPA 211, Clause 7-4.1 and Canada National  
Standard CSA B365-01, Clause 5.6). Check with your  
local building official for additional requirements for your  
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.  
area.  
TERMINATION  
CAP MUST BE  
LISTED TO UL  
641 AND ULC  
S609 *  
Termination Cap: The termination of the outside chim-  
ney of the pellet stove shall be located in accordance with  
the following:  
USA 1 Foot Minimum  
CANADA 3 Feet Minimum  
A. Higher than 3’ (.92m) above any forced air inlet (air  
conditioner, etc.) located within 10’ (3m).  
B. Not less than 4’ (1.2m) below, 4’ (1.2m) horizontally  
from or 1’ (3.1m) above any gravity air inlet (door, win-  
dow, etc.) which flue gases could re-enter the dwelling.  
C. Not less than 2’ (.6m) 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’ (2.1m) above grade when located adja-  
cent to the public sidewalks (access). The final termina-  
tion of the exhaust system must be configured so that  
flue gases do not jeopardize the safety of people pass-  
ing by, overheat combustible portions of nearby struc-  
tures or enter the dwelling.  
D. Not less than 3’ (.92m) below an eave (maximum  
overhang of 3’ (.92m) or any construction that pro-  
jects more than 2” (51mm) from the plane of the wall.  
E. The distance from the bottom of termination to grade  
is 12” (305mm) 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’ (.92m) away. The grade surface un-  
der the termination must not be a lawn.  
TERMINATION HEIGHT IS  
MEASURED ABOVE THE  
HIGHEST POINT WHERE  
IT PASSES THROUGH  
THE ROOF SURFACE.  
Manufactured (Mobile) Home  
Chimney Height Requirements  
The chimney must extend 3’ (.92m) above the level of  
roof penetration and a minimum of 2’ (.61m) higher than  
any roof surface within 10’ (3m) (see below). Check with  
your local building officials for additional requirements for  
your area.  
TOP OF FLUE MUST BE 3’ HIGHER THAN  
HIGHEST POINT OF ROOF PENETRATION  
REQUIRES A LISTED  
TERMINATION CAP *  
TOP OF FLUE MUST BE 2’  
HIGHER THAN ANY PART OF  
ROOF WITHIN 10’ HORIZONTAL  
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 ¼” (7mm) rise  
per foot horizontal).  
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.  
Notes:  
It is not recommended to terminate exhaust vent on the  
prevailing wind side of the house.  
It is not recommended using a termination cap with a  
screen (fly ash can collect in a screen resulting in  
blockage).  
* Ref. NFPA 211 Clause 7 – 4.1.2, Vents installed with a  
listed cap shall terminate in accordance with the terms  
of the cap’s listings.  
PAGE 15  
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INSTALLATION  
DETERMINING SIZE OF PIPE TO INSTALL  
To determine what diameter pipe to use in an installation (3” or 4”), first find the “equivalent pipe length” using the follow-  
ing guidelines, then plot this figure and the altitude on the chart.  
Fill out the installation chart, and calculate your total equivalent pipe length. After you have the total equivalent pipe  
length, use the Pipe Selection Chart below to determine if your installation requires 3” or 4” exhaust pipe.  
INSTALLATION CHART  
SAMPLE INSTALLATION CHART  
Type of  
Pipe  
# of Elbows  
or Feet of  
pipe  
Equivalent Total  
Type of  
Pipe  
# of Elbows  
or Feet of  
pipe  
Equivalent Total  
Feet  
Equivalent  
Feet  
Feet  
Equivalent  
Feet  
90o Elbows /  
Tee (A & G)  
45o  
x
x
x
x
5 Ft. (1.5m)  
3 Ft. (1m)  
1 Ft. (.3m)  
90o Elbows /  
Tee (A & G)  
45o  
2
x
x
x
x
5 Ft. (1.5m)  
3 Ft. (1m)  
1 Ft. (.3m)  
.5 Ft. (.15m)  
10 (3m)  
1
3
8
3 (1m)  
Elbows (C)  
Horizontal  
(B & F)  
Elbows (C)  
Horizontal  
(B & F)  
3 (1m)  
Vertical  
(E)  
.5 Ft.  
Vertical  
(E)  
4 (1.2m)  
Total = 20  
(.15m)  
A- 90 Degree Elbow  
B- 1’ Horizontal Pipe  
C- 45 Degree Elbow  
D- Standoff Braces  
H- Wall Thimble  
E- 8’ Vertical Pipe  
F- 2’ Horizontal Pipe  
G- 90 Degree Tee  
PIPE SELECTION CHART  
30  
NOTE: All equivalent pipe styles shown to the right are  
standard for all freestanding models.  
4 “ Diameter Only  
20  
10  
0
3 or 4”  
Diameter  
0 1  
2
3
4
5
6
7
8
9 10  
Altitude x 1000 Feet  
PAGE 16  
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INSTALLATION  
NOTE: Greater back clearance will improve the ser-  
viceability of the stove.  
INSTALLING YOUR FREESTANDING PELLET STOVE  
4. Install listed type “PL” 45 degree elbow with optional  
rodent screen or cap (recommended) on outside end  
of pipe. The rodent screen should be no less than  
1/2” (13 mm) mesh and may clog with soot and ash  
if left unattended during the burn season.  
Standard Horizontal Vent Installation  
1. Locate the proper position for the listed type “PL”  
wall thimble. Avoid cutting wall studs when installing  
your pipe. Use a saber saw or keyhole saw to cut  
the proper diameter hole through the wall to accom-  
modate the wall thimble. Use extreme caution to  
avoid cutting into power lines within the wall of the  
home. The hole size will depend on the brand of  
pellet vent that you are using. Install the wall thimble  
in the hole.  
NOTE: The end of the exhaust pipe must extend a  
minimum of 12” (.3m) from the outside of the build-  
ing.  
5. If the installation includes a source of outside com-  
bustion air; cut a separate hole through the wall for  
the fresh air tube. Use a galvanized or stainless  
steel pipe for the duct. The minimum size for the  
duct shall be not less than 50% of the cross sec-  
tional flue area. Connect outside air pipe to air inlet  
on stove. This tube must be terminated with a 45  
degree elbow or hood.  
ALL INTERLOCKING PIPE CONNECTIONS WITH-  
IN THE ROOM MUST BE SEALED WITH High Tem-  
perature RTV AND SECURED WITH A MINIMUM  
OF 3 FASTENERS PER CONNECTION.  
2. Position the stove approximately 12” (.3m) from the  
wall on the floor pad. Push listed type “PL” pipe  
through wall thimble. Squeeze a bead of high tem-  
perature silicone (High Temperature RTV) sealer  
around the end of the machined portion of the 3”  
(76mm) pipe connector on the back of the stove.  
Firmly push on a section of listed type “PL” pipe until  
inner pipe liner pushes into the bead of High Tem-  
perature RTV sealer.  
NOTES:  
Combustion air may also be drawn from a vented crawl  
space under the home.  
All joints for connector pipe are required to be fastened  
with at least three screws. If vented horizontally, joints  
shall be made gas-tight (air tight, sealed connection) in  
a manner as specified on this page (see instruction #1).  
Install vent at clearances specified by the vent manu-  
facturer.  
3. Push the stove (with pipe attached) towards wall.  
Pipe will go through the wall thimble. Do not position  
the back of the stove closer than 2” (51mm) from the  
wall.  
Back of  
Stove  
Quick  
Disconnect  
Wall Thimble  
45 Degree  
Elbow  
Straight PL-Vent  
Pipe  
Exhaust  
Port  
Gasket  
Inlet  
Air  
Port  
45 Degree Elbow Joint  
for Fresh Air Pipe  
Holes Through the Wall for the  
Thimble and Fresh Air Pipe  
PAGE 17  
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INSTALLATION  
Standard Horizontal Installation Configurations  
Optima 2 FS  
Optima 3 FS  
Corner Through the Wall  
Corner Through the Wall  
3” (75 mm) Minimum  
clearance between  
wall and pipe. If you  
vent to the furthest  
wall, the vent pipe  
must maintain a 3”  
clearance parallel to  
the other wall.  
3” (75 mm) Mini-  
mum clearance be-  
tween wall and pipe.  
If you vent to the  
furthest wall, the  
vent pipe must  
maintain a 3” clear-  
ance parallel to the  
other wall.  
Top View Illustration  
Wall  
Top View Illustration  
Wall  
2"  
2"  
Optima2 FS and Optima3 FS  
Horizontal Vent Through the Wall  
2" / 51 mm  
Minimum  
12" / 305 mm  
Minimum From  
Outer Wall  
6" / 152 mm  
Minimum  
45 Degree  
Elbow  
Hearth Pad /  
12" / 305 mm From  
Floor Protection  
Ground or Other Surface  
Note: Horizontal run of pipe requires 1/4” (7 mm) rise per foot.  
PAGE 18  
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INSTALLATION  
Standard Vertical Installation Configurations  
Preferred Installation – Vertical Vent Through the  
Models: Optima 2 FS and Optima 3 FS  
Roof  
These freestanding models may be connected to an  
existing flue or by installing listed type “PL” vent pipe. If  
a liner is run all the way to the top of the existing chim-  
ney, the existing flue should be sealed with a steel  
plate. Start a vertical run with a Tee at the back of the  
stove. Other options are illustrated below. Note: See  
page 15 for Vent Termination Requirements  
This venting configuration allows for the best stove  
performance. The vertical pipe promotes natural draft  
and with the chimney inside the dwelling, the flue  
gases stay warm, thus rising at a consistent rate.  
Listed Rain Cap  
Exterior Vertical Vent  
Flashing  
3”  
Min.  
Wall Straps  
Required Every  
4 ft. Minimum  
Clean-Out  
Tee  
Interior Vertical Vent into an  
Existing Class A Chimney  
Vertical Vent Into A Masonry Flue  
Existing  
Chimney  
Pipe  
Optional Com-  
plete Liner and  
Listed Termina-  
tion Cap  
Pipe Increaser  
Optional Clean-Out  
Access Door  
Extend Pipe to  
the Top if Exist-  
ing Chimney is  
Corroded  
Damaged  
or  
3”  
Min.  
USA & Canada – Requires an approved noncombustible hearth or floor protector, 3/8” / (10 mm) millboard  
or equivalent (k = .84, r = 1.19) to extend 6” / 150 mm to the front of the glass door.  
PAGE 19  
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INSTALLATION - Optima 3 INS  
Standard Installation Configurations Into and Existing Fireplace – Model: Optima3 INS  
IMPORTANT- Make sure the chimney and firebox are clean and free of soot and ashes before installation begins. Fail-  
ure to do so may result in the transfer of soot into the room by way of the room air blower.  
(USA only) Venting Into an Existing Chimney  
This pellet insert may be installed into a masonry  
fireplace (built to UBC 37 or ULC S628 standards) or  
a factory built fireplace (built to UL 127 or ULC S610  
standards) as illustrated on this page. When installing  
into a masonry chimney, it is recommended that the  
exhaust vent be extended to the top of the chimney  
as shown on the following page. However, if the vent  
pipe does not extend to the top of the chimney, the  
vent must extend a minimum of 18” above the  
damper. You must seal the damper area so that the  
air / exhaust in the chimney cannot communicate with  
the air in the fireplace firebox (this is a positive flue  
connection. See the following instructions for one  
method of sealing flue).  
Direct Connection  
(not allowed in Canada)  
The vent pipe must  
extend a minimum  
of 18" above the  
damper. The chim-  
ney must not be  
corroded or dam-  
aged in any way for  
this type of installa-  
tion to be permitted.  
A
non-combustible  
seal is required at  
the damper area (to  
prevent dilution air  
from entering the  
chimney). See Posi-  
tive Flue Connection  
Methods on this  
page.  
(USA & Canada) Direct Connection / Positive Flue  
Connection  
In Canada, this appliance requires a full reline when  
installing into a masonry fireplace. In the USA, as a  
minimum the vent connector from the insert flue out-  
let must extend a minimum of 18” above the damper  
and the damper area must be sealed to prevent dilu-  
tion air from entering the chimney which will affect  
proper drafting of appliance.  
Optional  
Access  
Door  
See the following instructions for acceptable methods  
for sealing chimney throat.  
Approved Methods of Achieving a Positive Flue Con-  
nection - A qualified installer should evaluate the ex-  
isting fireplace to determine the best method for  
achieving a positive flue connection between the vent  
pipe or liner and the chimney. The most common  
method for achieving a positive flue connection in  
masonry fireplaces is to secure a seal-off plate (i.e.  
22-gage sheet steel) in the fireplace throat using ma-  
sonry screws. Other acceptable methods include  
packing noncombustible material (i.e. rockwool)  
around the vent pipe or using a flue adapter. What-  
ever “seal off” method is used must effectively seal  
the area to prevent room air passage to the chimney  
cavity of the fireplace.  
Clean-  
out  
Tee  
USA & Canada – Requires an approved noncombustible hearth or floor protector, 3/8” / (10 mm) millboard  
or equivalent (k = .84, r = 1.19) to extend 6” / 150 mm to the front of the glass door.  
PAGE 20  
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INSTALLATION  
INSTALLING OPTIMA 3 INS (CONTINUED)  
IMPORTANT- Make sure the chimney and firebox are clean and free of soot and ashes before installation begins. Fail-  
ure to do so may result in the transfer of soot into the room by way of the room air blower. Do not block opening at front  
of insert (below door).  
Full Chimney Reline  
Horizontal Vent (Direct Vent)  
(Recommended for ALL chimney installations)  
IN CANADA – Installing as a Horizontal Vent  
is not allowed. The fireplace chimney must  
be fully lined.  
Approved Liner for Fac-  
tory Built (ZC) Fireplaces  
and Masonry Fireplaces  
is 2100HT (degree F.)  
liner listed to UL 1777 or  
ULC S635.  
U.S.A. – The insert may  
be installed as a Direct  
Vent (horizontal vent  
through the chimney  
structure) in masonry  
fireplaces if local codes  
will permit.  
Canada – Installing an  
insert a s a Direct-Vent  
is not allowed. The fire-  
place chimney must be  
fully relined from the  
insert outlet to termina-  
tion.  
Positive Flue  
Connection  
Recommended  
Clean Out  
Tee  
VENT TERMINATION WHEN LINER IS USED.  
A section of pellet vent pipe is required at the top where  
exposed to the elements (see illustration below).  
Listed Pellet Vent Cap  
Chase Cover  
1' Section of  
PL Vent  
3" or 4" liner  
(listed to UL 1777  
or ULC S635)  
USA & Canada – Requires an approved noncombustible hearth or floor protector, 3/8” / (10 mm) millboard  
or equivalent (k = .84, r = 1.19) to extend 6” / 150 mm to the front of the glass door.  
PAGE 21  
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CARE AND OPERATION  
stove will go into the start-up cycle. If a thermostat is being  
used the stove will go into the start-up cycle if the thermo-  
stat is in the demand mode. If the thermostat is in the  
stand-by mode when the fault is cleared, the stove will re-  
main in the stand-by mode until it closes again.  
CONTROL BOARD OPERATION  
Stove On / Off Button – This button will turn your  
stove on or off while in Manual or Automatic mode (see  
page 25 for details). The green on / off light at the top  
of control board will indicate the on / off status.  
Heat Output Button – The heat output button has  
three selection settings, Low, Medium and High.  
Pressing the button will scroll the red indicator lights  
from Low to High. The button controls the pellet feed  
and combustion airflow simultaneously. The control  
board is preset to provide the optimum ratio of fuel and  
air at each setting. Settings can be changed at any  
time but will only take affect after the start-up cycle is  
complete. Each press of the Heat Button will increase  
the heat output, and will scroll to the lowest setting af-  
ter reaching the maximum setting.  
NOTE – If the fuel feed trim or combustion air trim  
needs to be adjusted, contact an authorized Lennox  
Hearth Products Technician to calibrate internal soft-  
ware. It is recommended that the damper be used to  
fine-tune your stove to your particular fuel and installa-  
tion configuration (see Damper Adjustment on page 12  
and Damper Adjustment Guideline on page 26).  
POWER LED  
(fault when  
flashing)  
ON / OFF  
START  
Blower – The blower button operates the room air  
blower. This will change the flow of hot air into the  
room. Three choices are available Low, Medium, and  
High. When the Blower Button is pressed the yellow  
indicator light will scroll to Low, Medium, or High.  
HEAT SELECT  
BUTTON  
HEAT LED  
When running your stove on high heat output,  
the control board will not allow you to select  
the low blower speed. This is a safety precau-  
tion to protect against overheating. Blower set-  
tings can be changed at any time, but will only  
take affect after the start-up cycle is complete.  
BLOWER  
LED  
BLOWER  
SELECT  
BUTTON  
Fault Mode – The control system automatically moni-  
tors the flame using a photoeye. If the stove runs out of  
pellets the control board automatically goes into a  
“fault” status. The control board will initiate the shut  
down cycle and safely shut down the stove leaving it in  
the “fault” mode. The on / off indicator light near the top  
of the control board will flash rapidly when in this  
mode. After refilling the hopper with pellets, press the  
Start Button. If a thermostat is not being used the  
PAGE 22  
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CARE AND OPERATION  
Flame Detection Sequence of Events - This is what  
happens after flame has been detected.  
Note: The control board is equipped with an internal  
memory which will recall the last setting and mode  
the stove was in prior to loss of power. Because we  
individually check each stove prior to packaging, one  
of the two scenarios will appear when you first plug  
in your stove.  
1). The Green LED at the top of the control board will  
illuminate and the blowers will be running. This is a  
standard cool down mode and will last no longer than  
five minutes. This happens during testing when the  
stove is turned off (which initiates cool down mode)  
and then is unplugged.  
2). The Green LED at the top will illuminate and the red  
and yellow LED’s will illuminate on the control board,  
indicating that the stove is in the run mode. This hap-  
pens during testing if the stove is unplugged without  
first turning the control board off (the control board  
remembers its last setting, which was the run mode).  
If your stove follows that described in number 2 above,  
simply press the ON / OFF button once to turn the stove  
off, this will initiate the cool down mode. The stove can be  
restarted at any time during the cool down mode by  
pressing the ON / OFF button once.  
Happens within the Start-up Time Delay sequence.  
0 to 1 minute no fuel feed.  
Flame settles.  
Bed of embers built.  
1 minute mark: Fuel Feed rate 20% for 4 minutes 15  
seconds (1 second on / 4 seconds off).  
2 minute mark: igniter turns OFF / room air blower =  
panel setting.  
5 minute 15 seconds mark: exhaust blower = panel  
setting / LED indicator still active.Start-up Time de-  
lay ends 14 minutes 15 seconds after pushing the  
start button!  
PHOTOEYE  
PN LABEL  
LOCATION  
Start-up Sequence of Events  
1. Fault time delay is initiated (14 minutes 15 seconds).  
2. Fuel feed rate of 100% for 1 minute 50 seconds (when  
trim left at factory setting of 0) auger trim setting  
ranges from 1:26 to 2:14 depending on -4 to +4 re-  
spectively.  
POWER  
SELECT  
MAIN  
HARNESS  
3. Exhaust blower operation starts (medium range volt-  
age).  
4. Room air blower operation starts (medium range volt-  
age).Power LED is activated (steady green).  
6. Igniter operation activated (line voltage).  
7. Photoeye looks for flame (flame dominance scheme).  
8. * If needed second & third fuel dumps are available at  
predetermined time deliveries (4 minutes & 6 minutes  
after initial).  
FUSE  
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CARE AND OPERATION  
Your pellet stove can be operated in either manual  
or automatic mode. The manual mode is used  
when operating without a thermostat. The auto-  
matic mode is used when utilizing a wall thermo-  
stat. When utilizing the thermostat capability the  
burn time can be extended dramatically depending  
on thermostat setting. Note: It is normal for some  
ash to build up on the inner glass surface at the  
lower burn settings.  
Combustion Voltage Trim Steps:  
1. Push button “twice” for access voltage calibration mode.  
2. Identify the current calibration setting indicated by one  
YELLOW LED bar.  
3. Push the “HEAT” control button to adjust setting UP. Each  
push raises the YELLOW LED bar & increases voltage 5%.  
4. Push the “BLOWER” control button to adjust setting  
DOWN. Each push lowers YELLOW LED bar decreasing  
voltage 5%.  
5. Push the calibration button once to lock in selected results.  
Initial Start-Up / Empty Hopper or Feed Tube:  
During an initial start-up, or in the case where the hop-  
per has run out of fuel, it will be necessary to prime the  
auger feed system. The control board is set to deliver  
fuel for approximately 2 1/2 minutes during start-up,  
which, with a fully primed auger tube, will provide the  
appropriate amount of fuel for ignition.  
Fuel Delivery Rate  
The feed rate button manages the fuel delivery rate by controlling  
the amount of time the auger motor will run as follows:  
Optima 2 FS  
Feed Rate  
Setting  
Auger Motor  
ON / OFF Time  
(seconds)  
* Lb.’s per hour  
fuel delivery  
Burn  
Time  
(hours)  
Approximate  
BTU per hour  
fuel delivery  
When first starting your pellet stove, it will be nec-  
essary to prime the auger tube. To prime the auger  
tube you need to first fill the hopper with pellets,  
and press the ON button on the control board. Wait  
approximately 2 1/2 minutes and turn the control  
board OFF and then back ON again. Wait an addi-  
tional 2 1/2 minutes (if necessary) and continue this  
process until fuel begins to fall into the Ultra-  
Grate. Remember, different brand fuels feed at  
different rates.  
Low =  
Med.=  
High =  
1 on/5.40 off  
1 on/3.30 off  
1 on/1.75 off  
1.5 Lb.’s hr.  
2.5 Lb.’s/hr.  
3.8 Lb.’s/hr.  
13,000 BTU/hr  
21,000 BTU/hr  
32,000 BTU/hr  
37  
22  
15  
Note: Maximum hopper capacity is 55 lb.'s  
Optima 3 FS  
Feed Rate  
Setting  
Auger Motor  
ON / OFF Time  
(seconds)  
1 on/4.50 off  
1 on/1.90 off  
1 on/1.15 off  
* Lb.’s per hour  
fuel delivery  
Burn  
Time  
(hours)  
41  
27  
16  
Approximate  
BTU per hour  
fuel delivery  
14,000 BTU/hr  
22,000 BTU/hr  
38,000 BTU/hr  
Low =  
Med.=  
High =  
1.7 Lb.’s/hr.  
2.6 Lb.’s/hr.  
4.5 Lb.’s/hr.  
Once fuel starts to enter the UltraGrate, turn the  
stove OFF and then back ON. The auger tube should  
now be primed and the stove should deliver enough  
fuel for proper ignition. It may be necessary to follow  
these procedures in the event that the hopper runs  
completely out of fuel.  
Note: Maximum hopper capacity is 70 lb.'s  
Optima 3 INS  
Feed Rate  
Setting  
Auger Motor  
ON / OFF Time  
(seconds)  
* Lb.’s per hour  
fuel delivery  
Burn  
Time  
(hours)  
30  
20  
11  
Approximate  
BTU per hour  
fuel delivery  
14,000 BTU/hr  
22,000 BTU/hr  
38,000 BTU/hr  
Low =  
Med.=  
High =  
1 on/4.50 off  
1 on/1.90 off  
1 on/1.15 off  
1.7 Lb.’s/hr.  
2.6 Lb.’s/hr.  
4.5 Lb.’s/hr.  
Note: Maximum hopper capacity is 50 lb.'s  
* Feed rates are approximations only. Actual feed rate will  
vary depending on size, quality and length of fuel used and  
variations in line voltage.  
Estimated heat input based on fuel value of 8400 BTU per  
lb. of fuel.  
PAGE 24  
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CARE AND OPERATION  
MANUAL OPERATION  
LIGHTING PROCEDURE WITHOUT IGNITER  
Pressing the stove on / off button initiates the start-up  
cycle. The green on / off light, near the top of the control  
board, will light up to indicate the “on” status. The fan  
speeds and pellet feeds are fixed during this time to pro-  
vide appropriate ignition. The Fast-Fire igniter system  
will light the pellets feeding to the UltraGrate, after  
about 3 minutes. The start-up cycle is in effect for ap-  
proximately 2 minutes after flame is detected in the Ul-  
traGrate. A photoeye, monitors the existence of flame.  
After the start-up cycle your stove will be in the run mode.  
At this point the stove will operate in the heat output and  
blower settings selected. These settings can be selected  
either during or after the start-up cycle. Pressing the  
stove on / off button during the run mode will initiate the  
shut down cycle. The on / off indicator light will turn off.  
The pellets will stop feeding and the blowers will run at a  
fixed speed for approximately 10 minutes. At this point  
your stove is safely shut down and can ONLY be re-  
started by pressing the stove on / off button again.  
Your pellet stove can be lit manually without using the  
automatic igniter by following the procedure below. If your  
stove is set up to run on a thermostat, the thermostat cir-  
cuit needs to be closed (as if permanently in the demand  
mode). The thermostat wires should be removed from the  
rear of the stove and replaced with the jumper originally  
supplied with your stove. If a jumper is not available the  
thermostat should be set to the highest setting. This will  
keep the stove in the demand mode. If your automatic  
ignition system should ever need troubleshooting, repair  
or replacement, please contact your authorized Lennox  
Hearth Products dealer.  
1. Press the ON button on the control board.  
2. Wait approximately 2 1/2 minutes while the pellets  
prime the grate (the pellets will stop feeding auto-  
matically).  
3. Place a small amount of an approved (non-volatile)  
fire starter on top of the pellets in the grate, (see your  
authorized Lennox Hearth Products dealer for appro-  
priate fire starting products). DO NOT USE FLAM-  
MABLE LIQUIDS TO START YOUR STOVE!  
4. Light the “fire starter” with a match and close the  
door.  
5. The photoeye will detect that a flame is present and  
will begin feeding pellets in approximately 2 minutes.  
6. The control board will continue to go through the  
normal start-up cycle and the flame should be well  
established within 10 minutes from the time the ON  
button was initially pressed. Remember – you are  
now in manual mode and heat settings should be se-  
lected to the desired room heat level.  
AUTOMATIC OPERATION  
Your stove is capable of running in an automatic mode with  
the use of a wall thermostat. NOTE: For the thermostat to  
control the operation of the stove, the “on” status must be  
active on the stove’s on / off button. The thermostat will  
establish either a demand mode or a stand-by mode. The  
thermostat should be set for the desired room temperature.  
If the room temperature drops below the level on the ther-  
mostat the stove will automatically begin the start-up cycle,  
as explained above in the Manual Operation section. Once  
the start-up cycle is completed the stove will operate in  
whatever heat and blower setting you have selected. For  
best operation under thermostat control, the Medium or  
High settings recommended. When the desired room tem-  
perature is reached, the stove will automatically go into the  
shut down cycle. The pellet feed will stop and the blowers  
will continue for a controlled time allowing safe shut down of  
your stove. All lights will remain on when the thermostat is  
open. The heat and blower settings can be changed at any  
time, but only take affect during the run mode. When the  
temperature in the room drops to the level set at the ther-  
mostat, the stove will again begin the start-up cycle and  
resume automatic operation in the demand mode.  
TURNING OFF YOUR PELLET STOVE  
Press the stove on / off button to initiate the shut down  
cycle. The pellets will stop feeding and the blowers will  
continue to run on a timed cycle. The stove will shut  
down safely upon completion of the shut down cycle.  
NOTE: If the stove on / off button is pressed while the  
thermostat is in the standby mode the stove will not re-  
start until the thermostat closes.  
PAGE 25  
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CARE AND OPERATION  
DAMPER OPERATION (All models)  
Excessive Combustion Air: By closing the damper, this  
will reduce 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  
damper is open too much, the burning pellets will lift off  
the grate and fly up into the air much like popping corn  
does.  
The damper is a plate that helps control the amount of  
airflow supplied for combustion. With the damper pushed  
all the way in the airflow is at its minimum. As the damper  
is pulled out, more air is allowed to flow.  
It will be necessary to monitor the appearance of the  
flame during the first 4-8 bags of pellets. If your flame is  
smoky red / orange with evidence of soot at the top of the  
flame, you need more combustion air; pull the damper  
out one notch and re-evaluate the appearance of the  
flame. It may be necessary to continue this process, mov-  
ing the damper one notch at a time until proper combus-  
tion is attained (the flame should become yellow and be-  
gin to “dance”). If the flame is “short” at the higher burn  
rates, or if the pellets are burning up in the grate before  
new pellets are fed into the fire, push the damper in one  
notch and monitor the flame. Continue the process of  
moving the damper one notch at a time and evaluating  
the flame until proper flame appearance is achieved.  
Contributing factor:  
Venting system providing excessive draft.  
Correct Combustion Air / Proper Burn Characteris-  
tics: When the damper is correctly set, the burning pel-  
lets should move (wiggle) around slightly and the flame  
should be bright yellow.  
AUTOMATIC SAFETY FEATURES  
Power Outage:  
During a power outage, the stove will shut down safely.  
The stove will automatically restart when power is re-  
sumed. The solid state control board has an internal  
memory that will retain heat output and blower speed  
settings through voltage interruptions.  
Once the damper has been properly set, it should not  
need adjusting unless you are changing the grade of pel-  
let fuel, in which case the damper may need to adjusted.  
A small amount of smoke may leak from the top of  
the window glass, the hopper and from the combus-  
tion air intake, if the stove is vented horizontally with  
no vertical pipe. This will not persist for more than 3 to 5  
minutes and will not be safety hazard. It may set off your  
smoke alarm.  
DAMPER ADJUSTMENT GUIDELINE  
Lack of Combustion Air: By opening the damper, this  
will increase combustion air delivery. Symptoms of insuf-  
ficient combustion air include; unburned fuel, lazy smoky  
or red / orange flame, excessive ash or soot, excessive  
buildup on glass.  
Note: If the area in which you live is prone to frequent  
power outages, it is recommended that a minimum of 8  
feet (2 ½ meters) of vertical vent pipe be included in a  
freestanding installation to induce a natural draft in the  
event of a power failure.  
Contributing factors:  
High Altitude – Lack of oxygen  
Restrictive Venting (elbows, horizontal runs,  
cold external chimneys, etc.).  
Dirty / Poor Quality Fuel.  
Overheating:  
Note: Excessive amounts of fly ash built-up in the grate,  
clinkers in the grate or leakage of air (if the grate is not  
properly seated) will starve the fire for air. See Routine  
Maintenance, on page 28 to 33 for information on clean-  
ing the stove.  
A high temperature disc (thermal switch) will automati-  
cally shut down the stove if it overheats. Allow up to 45  
minutes cooling time before re-lighting. Keep enough  
convection air (from the room air blower) going through  
stove to keep it cooling properly, this will ensure long life  
of the stove. If the overheating continues, contact your  
authorized Lennox Hearth Products dealer for more in-  
formation.  
PAGE 26  
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CARE AND OPERATION  
FUEL  
Fuel Specifications - Using the UltraGrateburn sys-  
tem, this appliance has been designed to burn wood resi-  
due pellets with up to 3% ash content. Agricultural pellets  
(i.e.… Corn, alfalfa etc.) are not permitted to be burned in  
the stove. Dirty fuel will adversely affect the performance  
of the stove.  
Clinkering - Silica (or sand) in the fuel, along with other  
impurities, can cause clinkering. A clinker is a hard mass  
of silica formed in the burning process. Clinkering is a  
function of the fuel, (not the stove), but adversely affects  
the performance of the stove by blocking off the air pas-  
sages in the grate. Even P.F.I. approved pellet fuel may  
tend to clinker. A clinker can be removed from the Ultra-  
Grateand placed in the ash pan with the use of the  
grate scraper / ash pan tool furnished with your stove.  
See Routine Maintenance (pages 28 - 33) for more in-  
formation on cleaning.  
Caution: The use of unapproved, dirty, wet and / or high  
salt content fuel will void the warranty!  
Wood pellets manufactured to the pellet fuels institute  
(P.F.I.) certification standard are available in two grades,  
Standard and Premium. The primary difference between  
the two is the ash content of the pellets.  
Ash - The frequency of removal of the ash and mainte-  
nance performed on the stove is directly proportional to  
the ash content of the fuel and the operation duration of  
your pellet stove. Low ash fuel may allow longer intervals  
between cleaning, however, a stove burning high ash fuel  
may need to be cleaned as often as everyday.  
The P.F.I., specification for standard grade & premium  
grade residential pellet fuel is as follows:  
CHLORIDES (Salt): Less than 300 p.p.m.  
BULK DENSITY: 40 lb. / Cu. Ft. minimum  
MOISTURE CONTENT: 8% maximum  
ASH CONTENT: < 3% maximum (standard grade)  
< 1% maximum (premium grade)  
PLEASE NOTE: Lennox Hearth Products has no control  
over the manufacturing of pellet fuel and will not be held  
responsible for poor stove performance or any damage  
caused by poor quality pellet fuels.  
FINES: 0.5% maximum through a 1/8” screen  
BTU CONTENT: Minimum 8200 BTU per pound.  
Pellet Feed / Pellet Size - The pellet feed system is de-  
signed to handle a wide range of pellet sizes up to a  
maximum of 5 / 16" diameter. Different pellets may feed  
at considerably different rates. You may notice a differ-  
ence in the burn if you change pellet fuel sizes. The  
longer the pellet, the slower it will feed and vice versa. If  
the stove will not stay burning at the minimum fuel feed  
setting, those particular pellets may not be feeding fast  
enough. If this happens, reduce the amount of combus-  
tion air by adjusting the damper. See pages 12 & 26 be-  
fore adjusting the damper.  
Fuel Feed Rates - Different brands of pellets will feed at  
varying rates due to their size and density (length and  
diameter). This may require a slight adjustment in the  
damper control (see pages 12 & 26) or the fuel feed trim  
to compensate (see note on page 22).  
UltraGrate  
Long Burn Time - When operated correctly, this appli-  
ance cannot be overfired. Continuous operation at a  
maximum burn can, however, shorten the life of the elec-  
trical components (blowers, motors, and electronic con-  
trols), and is not recommended. Typical approved opera-  
tion would include running at the low to mid range setting  
with occasional running on the maximum setting during  
the coldest periods of the winter. The blower speed con-  
trol should be turned to high when operating the stove on  
the high heat setting. A lower heat setting is recom-  
mended for overnight operation or when the room is va-  
cated for long periods of time.  
Note: See Fuel Delivery Rate on page 24 for burn times.  
PAGE 27  
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ROUTINE MAINTENANCE  
* Inspect your stove or insert at minimum frequency stated until you establish a minimum frequency required for  
your installation (frequency will vary depending upon fuel BTU value / ash content, usage, and misc. installation  
variables). Unplug and Ensure Stove is Cold Before Performing Any Maintenance Work. Include routine mainte-  
nance with annual maintenance. The following areas need to be inspected and cleaned as part of annual main-  
tenance:  
ROUTINE CLEANING  
ASH PAN (Optima 2 FS and Optima 3 FS)  
Unplug and Ensure Stove is Cold Before Performing  
Any Maintenance Work.  
All ash removal and cleaning should be done while  
stove is cold.  
The ash pan will have to be emptied periodically, depend-  
ing on the amount of fuel consumed. To access follow  
steps one through four:  
1. Open the glass door, then, using the ash pan / grate  
scraper tool, lift the UltraGrate® out and sweep the  
top ash into the pan below.  
The following areas need to be inspected and cleaned  
during Routine Cleaning:  
UltraGrate(burn grate)  
Ash Pan  
Heat Exchange Tubes / Tube Scraper  
Photoeye  
Exhaust Passages and Vent Pipe  
Ash Clean-out Ports  
Gaskets  
2. Remove the ash pan cover located below the door by  
pulling forward until magnets release.  
Models Optima 2 FS and Optima 3 FS  
Window Wash  
Rear Stove / Insert Compartment  
UltraGrate(Burn Grate for All Models)  
The UltraGrateshould be inspected periodically to as-  
sure that the air holes have not become clogged with ash  
or clinkers. The UltraGratecan easily be cleaned with  
the grate scraper / ash pan tool, or it can be removed for  
cleaning. It is very important to monitor the ash build up  
under the UltraGrate, as excessive amounts of ash will  
block combustion air from entering the grate, causing  
pellets to pile-up in the grate. The grate cleaning proce-  
dure is the same for all models.  
Ash Pan  
Cover  
UltraGrate  
Model Optima 3 INS  
UltraGrate  
Ash Pan  
Cover  
* (Recommended Frequency of 2 days – 2  
weeks)  
Optima 3 INS has a  
handle on the exterior  
of the ash pan cover for  
easy access and re-  
moval.  
* (Minimum Frequency of 1 day to 2 weeks)  
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ROUTINE MAINTENANCE  
3. Release both ash pan latches and pull forward.  
Models Optima 2 FS and Optima 3 FS  
4. Remove the ash pan. Place ashes into a non-  
combustible container. When finished, close the  
glass door and slide the ash pan back into the stove  
and close the ash pan door. Reinstall ash pan cover  
panel.  
* (Minimum Frequency of 2 days – 2 weeks)  
HEAT EXCHANGER TUBES (All Models)  
Only Clean Heat Exchanger Tubes When Stove is  
Cool.  
Tube Scraper  
After lifting the hopper lid, use the hole in the handle of  
the Grate Scraper Tool to “grab” onto the rod. Using the  
Grate Scraper Tool, pull the rod up and out towards the  
opening of the firebox. Continue pulling until the Tube  
Scraper reaches the top of the firebox. The rod is located  
on the outside, above the door. Pull the tube scraper rod  
out, then repeat 2–3 times to remove fly ash from the  
heat exchange tubes.  
Ash  
Pan  
Latch  
Tube Scraper  
Use tool to grab scraper rod.  
Model Optima 3 INS  
Tool  
Tube  
Scraper  
Rod  
Ash  
Pan  
Latch  
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ROUTINE MAINTENANCE  
Pull Scraper Rod out & in several times  
Mirror  
Feed Tube  
Scraper  
Rod  
pulled  
out  
a. Using a long soft bristled brush (i.e. artists brush),  
extend it deep into the feed chute and sweep away  
any pellet fines (on right side).  
b. Canned compressed air can also be used to re-  
move pellet debris from the photoeye filter (use only  
canned compressed air such as what can be com-  
monly purchased at a computer or office supply  
store and some drug stores). Read and follow the  
instructions on the spray can. Attach the tube  
(straw) to the nozzle on the canned air (a tube is  
commonly provided with compressed air. It is simi-  
lar in use to the tube supplied with WD-40, Lubri-  
cant). Spray the canned air deep into the feed  
chute until all “fines” are removed (direct it to the  
right side).  
REMOVABLE BAFFLE PLATES (All Models)  
At least once a year, the baffle plates (located in the  
firebox below exchange tubes) should be removed  
for cleaning (vacuum out, then reinstall baffle plates)  
Removing Baffle Plates  
NOTE: The photoeye lens should be inspected annually  
and cleaned if necessary as shown in method (B).  
The baffle plates contain keyhole slots allowing the  
screws to remain in place while removing the baffle. Lift  
each plate up and forward until screws release through  
the keyhole slots. Remove baffle plates diagonally  
through door opening.  
(B) Removing Photoeye Filter for Cleaning:  
1. Lift off cover plate and turn over (the photoeye is at-  
tached to the inside surface of cover). Wipe away any  
dust or debris from the photoeye lens (see following pic-  
tures).  
PHOTOEYE (Freestanding and Insert)  
ENSURE STOVE/INSERT IS COLD BEFORE BEGINNING  
As a part of normal maintenance, buildup of pellet debris  
(fines) must be periodically removed from the photoeye  
filter. This filter can be cleaned by following either proce-  
dure (A) or (B) on this page:  
Photoeye Access Inside Hopper  
To access photoeye, open hopper and remove  
the 3 nuts on cover plate (see picture below).  
Photoeye Cover  
Plate.  
Using a 11/32"  
nut driver remove  
the 3 nuts to ac-  
cess photoeye  
and filter.  
Note: The photoeye views the fire through a filter. The  
filter is located at the top of the feed chute near the hopper  
on the right side. This area should be cleaned periodically  
to prevent excessive build-up, which may cause the stove  
to go into “fault” mode.  
(A) Cleaning Photoeye Filter Without Removing it:  
1. Open the front door to access the feed chute.  
2. Remove the buildup on the filter as explained in ei-  
ther “a” or “b” (note: it may help to use a mirror and a  
flashlight to view the filter as shown in the following  
picture):  
PAGE 30  
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ROUTINE MAINTENANCE  
Clean Photoeye Lens  
Clean-Out Tee  
Clean Photo-  
Eye Lens  
Remove cover, then  
remove ash  
Remove Filter and Wipe Clean  
Filter  
* (Minimum Frequency of 1-2 months)  
ASH CLEAN-OUT PORTS  
Make sure stove is cold. Ash clean-out ports must be  
cleaned as part of routine maintenance.  
Accessing Clean-out Ports  
Optima 3 Series (Firebrick panels must be removed  
to access):  
IMPORTANT: Clean-out cover plates must be in-  
stalled when operating unit.  
(Minimum frequency of 4 weeks - 6 months)  
Retainer Brackets  
REMOVE RETAINER BRACKETS AND LIFT  
FIREBRICK PANELS UP AND OUT – Using  
a 5/16" nut driver, remove 2 screws in each  
firebrick retainer bracket (located on the  
sides of the inside firebox). Lift panels up  
and out.  
CAUTION: If the filter is not reinstalled, reflective  
light in the room may result in a fault, thus shut-  
ting down of the unit.  
EXHAUST PASSAGES AND VENT PIPE (All Models)  
Inspect frequently and clean when necessary. Fly ash will  
accumulate at all bends in the exhaust system.  
Note: Large amounts of fly ash build-up will create a lack  
of combustion air. Removing the clean out tee cap on  
vertical installations will allow an inspection of the ash  
build-up in the clean out tee and will help you to decide  
how frequently more extensive cleaning must be per-  
formed.  
REMOVE COVERS AND  
VACUUM OUT FLYASH -  
Loosen screws (1 per  
clean-out) and lift each  
plate out. Use an ap-  
proved ash vacuum or  
brush to remove ash.  
After cleaning, replace  
Clean-Out Tee  
Rain Cap  
clean-out  
plates  
and  
tighten screws.  
* (Minimum Frequency of 1-2 months)  
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ROUTINE MAINTENANCE  
DOOR ROPE GASKET (All Models)  
CREOSOTE REMOVAL (All Models)  
The condition of the rope gasket around the door and  
windows should be checked periodically and replaced or  
repaired if necessary. A one-inch strip of paper may be  
used to perform a test of the integrity of the door seal.  
Close the door on the paper in at least eight points (see  
illustration, “Door Rope Gasket”). It is normal to feel only  
a slight amount of friction. The door gasket does not need  
to be “tight” in all areas, since a small amount of leakage  
is not hazardous or detrimental to the performance of  
your stove.  
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 connector and chimney should be in-  
spected at least once every two months during the heat-  
ing season to determine if a creosote buildup has oc-  
curred.  
Door Rope Gasket  
(check seal at points indicated)  
If creosote has accumulated it should be removed to re-  
duce the risk of a chimney fire.  
Window Wash  
Periodically remove five screws, which secure the win-  
dow wash bracket to the door frame, using a 1/4” socket.  
Lift out the widow wash bracket, and set aside. Using a  
small brush, sweep out all debris buildup from behind the  
window wash bracket. After all debris has been removed  
re-attach the window wash bracket. Inspect the window  
wash gap to ensure that it is open and even from side to  
side. A restricted or blocked gap will decrease the effec-  
tiveness of the window wash.  
Remove Window Wash Bracket (5 screws)  
* (Minimum Frequency of 1 year)  
Checking Door Seal  
Sweep Away Debris from Behind Window Wash Bracket  
Important Note: Paper should be no longer than a  
dollar bill.  
* (Minimum Frequency of 1 year)  
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ROUTINE MAINTENANCE  
SMALL AREA PAINT TOUCH-UP  
Opening Side Panels Optima 2 FS and Optima 3 FS  
Using a 11/32” nut driver remove the nut from the inside  
of the hopper on the side (see following picture). Reinstall  
nut to prevent panel from opening accidentally!  
The stove body is painted with a quality high-temperature  
stove paint. Use only model TSPK-B Stove Paint, Cata-  
log # 70K99. Do not touch-up your stove with any other  
paint.  
Optima 2 FS and Optima 3 FS  
Opening Side Panels  
Using one small piece of 320 grit sand paper and lightly sand  
the blemish so that the edges are “feathered” or smooth to the  
touch between the painted and bare surfaces. Do not let the  
sand paper gum up with paint, as this will cause scratches on  
the metal surface. If there are any scratches, use 600 grit  
sandpaper instead. Mask off surfaces you do not want painted.  
Paint lightly over the bare surface first as this will act as an un-  
dercoat. Then paint over a larger area in smooth even strokes  
to blend.  
Hopper Lid  
Remove nuts on hopper  
sides (one each side) to  
open side panels  
REAR STOVE COMPARTMENT (All Models)  
The rear stove compartment should be cleaned periodi-  
cally (a minimum of once a year). DISCONNECT ELEC-  
TRICAL CORD PRIOR TO CLEANING STOVE. Any  
household dust, pet hair or sawdust should be vacuumed  
or wiped out of the rear compartment of the stove, room  
air blower, and exhaust blower (paying special attention  
to vacuuming out the intakes of both blowers). The elec-  
trical components should be wiped clean.  
MOTOR LUBRICATION  
The blowers are permanently lubricated by the manufac-  
turer. Do not apply oil to any part of the blower, doing so  
may cause damage.  
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SPECIFICATIONS - Optima 2 FS  
Flue Size  
3” / 76mm Rear  
BACK VIEW  
23"  
Width, Overall  
23” / 584mm  
Depth, Overall  
Depth, Overall w / 3” tee  
22 3/4” / 578mm  
28 1/2” / 724mm  
Height  
28 5/8” / 727mm  
Floor to Rear  
Flue Center  
11 1/4” / 286mm  
28 5/8"  
Facing back of unit,  
outside edge of left side  
to center of rear  
flue outlet center  
6 1/2” / 165mm  
Floor to Rear  
Outside Air Inlet  
Located on center-  
line of pedestal back  
6 ½"  
11 1/2"  
11 ¼"  
8 ¾"  
5” / 127mm  
5 1/8"  
Facing back of Unit  
outside edge of right side  
to center of air inlet  
11 1/2” / 292mm  
SIDE VIEW  
Floor Protection  
Requirements  
+
Front and Sides:6”/152mm  
Back: Up to 6” / 152mm  
28 1/2"  
w/clean-out tee  
Standard Features  
Fastfire Self Igniter  
Wall Thermostat (wire in-  
cluded)  
22 3/4"  
Hopper Capacity  
Burn time  
55 lbs.  
15-37 hours  
Fuse, Control Board  
Fuse, Igniter  
5 Amp, 250 volt, 3AG *  
6 Amp, 125 volt *  
Heat Input (BTU’s per hour)  
Overall Efficiency  
13,000-32,000 BTU / hr  
75-81%  
Emissions  
0.4 gr / hr (varies w/size  
and type of fuel) EPA ex-  
empt.  
Shipping Weight  
Room Air Blower  
215 lbs.  
150 CFM; .8 Amps,  
2175 rpm  
Auger Motor  
1 RPM; .4 Amps  
Note: Dimensions shown are approximations only (+/- ¼”)  
Exhaust Blower  
95 CFM: 1.0 Amps,  
2880 rpm  
+
Non-combustible floor protection is required (see  
Floor Protection, page 5). When installed at clear-  
ances less than 6”, the floor protector is only re-  
quired to extend to the wall.  
Fastfire Igniter  
Options  
4.35 Amps,  
Nickel or Gold Trim Kits  
4” Quick Disconnect  
Log Set  
Fuel delivery and burn times will vary depending  
on size and type of fuel used. Estimated heat in-  
put based on fuel value of 8400 BTU per lb.  
*
Fuses are rated as fast blow.  
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SPECIFICATIONS - Optima 3 FS  
Flue Size  
3” / 76mm Rear  
BACK VIEW  
25 7/8"  
Width, Overall  
25 7/8”  
Depth, Overall  
Depth, Overall w / 3” tee  
24 7/8”  
30 3/4”  
Height  
31 3/8”  
Floor to Rear  
Flue Center  
16 7/8”  
31 3/8"  
Facing Back of Unit,  
outside edge on right  
to center of rear  
flue outlet  
5 1/8”  
Floor to Rear  
Outside Air Inlet  
16 7/8"  
Located on center-  
line of pedestal back.  
5 1/8"  
10”  
8 7/8"  
12 15/16"  
5 1/8"  
Facing Back of Unit  
outside edge on right  
to center of air inlet  
12 15/16”  
SIDE VIEW  
30 3/4"  
Floor Protection  
Requirements  
+ Front and Side: 6”/152mm  
Back: Up to 6” / 152mm  
Standard Features  
Fastfire Self Igniter  
Wall Thermostat  
(wire included)  
24 7/8"  
Hopper Capacity  
Burn time  
70 lbs.  
16-41 hours  
Fuse, Control Board  
Fuse, Igniter  
5 Amp, 250 volt, 3AG *  
6 Amp, 125 volt *  
Heat Input (Max.)  
Overall Efficiency  
14,000-38,000 BTU / hr  
81%  
Emissions  
.9 gr / hr (varies w / size  
and type of fuel) EPA ex-  
empt  
Ship Weight  
270 lbs.  
Room Air Blower  
150 CFM; .8 Amps,  
2175 rpm  
Auger Motor  
1 RPM; .4 Amps  
Note: Dimensions shown are approximations only (+/- ¼”)  
+ Non-combustible thermal rated floor protection must  
be used when installed on carpet (see Floor Protection,  
page 6). When installed at clearances less than 6”,  
the floor protector is only required to extend to the  
wall.  
Exhaust Blower  
95 CFM: 1.0 Amps,  
2880 rpm  
Fastfire Igniter  
Options  
4.35 Amps,  
Nickel or Gold Trim Kits  
4” Quick Disconnect  
Log Set  
Fuel delivery and burn times will vary depending  
on size and type of fuel used. Estimated heat input  
based on fuel value of 8400 BTU per lb.  
* Fuses are rated as fast blow.  
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SPECIFICATIONS - Optima 3 INS  
Flue Size  
3” Rear  
SIDE VIEW  
32 1/8”  
Width, Overall front (w/o surround)  
Width, Overall back (w/o surround)  
26”  
24 1/8”  
Depth, Overall (w/o surround)  
26 1/4”  
13””  
Height, rear (w/o surround)  
Height, front (w/o surround)  
19 15/16”  
23 5/8”  
Floor to Rear  
Flue Center  
13 ¼”  
9 1/4”  
Fireplace Face to Rear  
Flue Outlet Center (3” tee)  
13 1/4”  
20 1/8”  
Dimensions into Fireplace  
Minimum Height  
23 5/8”  
Minimum Width @ Front  
(extends back 1 ½”)  
Minimum Width @ Back  
Minimum Depth  
32”  
24 5/8”  
17 3/4”  
19 7/8”  
Facing Back of Unit,  
Right Outside Edge of Unit  
to Center of Rear Flue Outlet  
5”  
Floor to Rear  
Outside Air Inlet  
1 1/2”  
Facing Back of Unit,  
Right Outside Edge of Unit  
to Center of Air Inlet  
12 7/16”  
Front: 6”  
TOP VIEW  
Floor Protection  
Requirements  
Standard Features  
Fastfire Self Igniter  
Wall Thermostat (wire in-  
cluded)  
Hopper Capacity  
50 lbs.  
Burn time  
11-30 hours  
Fuse, Control Board  
Fuse, Igniter  
5 Amp, 250 volt, 3AG *  
6 Amp, 125 volt *  
Heat Input (Max.)  
Overall Efficiency  
14,000-38,000 BTU / hr  
81%  
Control  
Board  
Damper  
Arm  
Emissions  
.9 gr / hr (varies w/size  
and type of fuel) EPA ex-  
empt.  
Ship Weight  
230 lbs.  
Room Air Blower  
150 CFM; .8 Amps, 2175  
rpm  
Auger Motor  
1 RPM; .4 Amps  
Exhaust Blower  
95 CFM: 1.0 Amps, 2880  
rpm  
Fastfire Igniter  
Options  
4.35 Amps  
Nickel or Gold Trim Kits  
4” Quick Disconnect  
Log Set  
Sm./Med./Lg. Surrounds  
Gold Surround Trim Kits  
Note: Dimensions shown are approximations only (+/- ¼”)  
+
Non-combustible floor protection must be used when installed on carpet (see Floor Protection, page 5).  
Fuel delivery and burn times will vary depending on size and type of fuel used. Estimated heat input based on fuel  
value of 8400 BTU per lb.  
Fuses are rated as fast blow  
PAGE 36  
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COMPONENT DEFINITIONS  
AIR WASH  
HOPPER  
To inhibit buildup of soot on the door glass, air is deliv-  
ered to the glass through an air wash system located in  
the doorframe surrounding the glass.  
The hopper is where the pellets are stored.  
HEAT OUTPUT BUTTON  
This is the main power button, which controls power to  
the feed system auger motor and exhaust blower. It has  
3 feed rate settings, which controls the burn rate.  
AUGER  
It transfers the fuel down the burner tube into the burn  
grate.  
PHOTOEYE  
AUGER MOTOR  
Drives the Auger. Motor specifications are: .4 Amp, 1  
rpm (revolutions per minute).  
The photoelectric eye that senses the flame, or lack of.  
It is designed to signal the control board to discontinue  
power to the auger motor if it flame is not sensed in the  
UltraGrate.  
BLOWER, ROOM AIR (CONVECTION)  
The blower function is to transfer the heat from the ap-  
pliance to heat the room air.  
PRESSURE SWITCH  
A safety device used to shut off the feed system (auger  
motor) if there is too much back pressure in venting  
system. Some possible causes are as follows:  
BLOWER, EXHAUST (DRAFT INDUCER/COMBUSTION)  
It has a radial impeller to deliver more air to the burn  
grate. It pulls air into the burn grate by creating a nega-  
tive pressure. This is done by extracting the exhaust  
gases out of the firebox and pushing the exhaust down-  
stream to the flue exit.  
The venting system is obstructed.  
High altitude or other misc. environmental condi-  
tions affecting exhaust flow.  
Improper venting system.  
DISC, HIGH LIMIT (L250-30F, N / C)  
ULTRAGRATE(BURN GRATE)  
This is where combustion occurs and may be referred  
to as the "burn grate".  
There are 2 of these discs on this model. If a tempera-  
ture reaches 250° F., the high limit auto reset will “trip”  
and stop the flow of electricity to the auger motor. The  
discs will not automatically reset until it has cooled be-  
low 220° F).  
Disc for Room Air Blower – This disc is located  
on the Room Air Blower jacket and is designed to  
detect an overfire condition.  
Disc for Combustion Air Inlet – This disc is lo-  
cated on the combustion air inlet and is designed  
to detect reversed flow. If negative pressure in the  
dwelling (i.e. An extremely tight house which may  
not supply adequate combustion and ventilation  
air) causes the exhaust to pull back from the com-  
bustion air inlet, the heat from the exhaust will re-  
sult in heat activation of this disc.  
PAGE 37  
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WIRING DIAGRAM  
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TROUBLESHOOTING Qualified Technicians Only  
Unplug Appliance Before Performing Any Troubleshooting or Maintenance  
PROBLEM  
CAUSE(S)  
SOLUTIONS  
1. Fire burns with a There is insufficient combustion air.  
lazy orange flame.  
Lack of maintenance (clean Ultragrate, clean-out ports, exhaust  
flow passages, venting system, exhaust blower intake, etc.  
Pellets build up in  
the grate and there  
is excessive glass  
Remove any clinkers or ash from the bottom of the Ultragrate  
that might be obstructing the primary air holes.  
soot that is difficult to  
remove (Ash and  
soot are a product of  
Check that the heat exchange tubes are not coated with ash.  
Clean internal exhaust ducts.  
combustion with any  
wood products, so  
some build-up on the  
glass is normal).  
Check gasket seal around the door. Use a thin strip of paper, 1  
in. wide. Open the door and close it on the paper strip. A slight  
friction should be felt when the paper strip is pulled. Repeat this  
process at various locations around the door gasket. Replace  
the door gasket if necessary.  
Check gasket around ashpan.  
Check for blockage in the air inlet tube or exhaust pipe. Clean  
as Necessary.  
Inspect glass seal to ensure that it is in good condition and is  
properly seated to the door.  
Fuel trim may need to be adjusted down for faster feeding fuels.  
Change to a better grade of fuel if necessary.  
Check that the damper has been opened enough for the amount of  
fuel fed.  
Have Your Authorized Lennox Hearth Products dealer check your  
exhaust blower for proper operation.  
The venting system design is too restrictive (call your authorized  
Lennox Hearth Products Technician to evaluate how the installation  
can be corrected to satisfy the exhaust flow requirements of the  
appliance).  
2. Fire goes out or  
stove shuts down  
automatically  
Stove has run out of fuel.  
Pellets are not feeding.  
Refill hopper.  
See (Pellets will not feed) this page.  
The high limit disc (thermal switch) has Allow stove to cool for 1 hour and re-light. If the stove has been  
tripped.  
operating at a medium to high burn rate and the room air blower has  
been turned down low then the fan should be turned up higher. If  
this problem persists (particularly at lower burn rates) then the high  
limit disc should be replaced by your authorized dealer.  
There is too much combustion air for  
the amount of fuel.  
Adjust the damper to reduce combustion air flow.  
3. Pellets will not  
feed.  
The hopper is empty.  
Refill hopper.  
The auger motor or control board may  
be defective. The pressure switch tap  
or hose may be blocked.  
Check to be sure that there is no blockage in the pressure tap or  
hose. Have your authorized Lennox Hearth Products dealer diag-  
nose the problem and clean or replace any necessary parts.  
Back pressure in venting tripping pres- If new installation check for excessive 90˚ bends, long horizontal  
sure switch.  
runs or excessive vertical run of 3” pipe. Possibly change to 4” pipe.  
If older installation check for excessive ash accumulation in pipe or  
other obstructions. Clean out pipe.  
Thermostat is in stand-by mode.  
Thermostat wires disconnect.  
Check to see if thermostat is set to low or if sun is shining directly  
on thermostat.  
Re-install wires.  
High limit disc (thermal switch) may  
have been tripped.  
Allow stove to cool. Increase room air blower setting.  
Self-aligning bearings in auger motor  
may be mis-aligned.  
Gently tap the auger motor.  
PAGE 39  
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TROUBLESHOOTING Qualified Technicians Only  
Unplug Appliance Before Performing Any Troubleshooting or Maintenance  
PROBLEM  
CAUSE(S)  
SOLUTIONS  
There is no power to the stove.  
Check that the stove is plugged in to the wall outlet.  
4. Blowers will not  
operate when the  
start button is de-  
pressed.  
There is no power to the control board. Check to see if your circuit breaker has tripped.  
Check the wire connections on the high limit disc and control board.  
The window is being cleaned when the Turn down the room air blower or turn off stove before cleaning to  
5. There is soot or fly  
ash in the house.  
stove is operating.  
prevent dispersion of ash and soot into the room.  
There is leakage at the joints between  
the exhaust blower, connection or ex-  
haust pipe connections. This will be  
evidenced by dust on the impeller of  
the room air blower, and in the heat  
exchanger area.  
Seal up any leaks in the exhaust system with room temperature  
vulcanizing silicone sealer (High Temperature RTV).  
DO NOT use a standard household vacuum or “shop vac” as the  
filters will leak the fine particles of ash. Clean the stove with an ap-  
proved ash vacuum ONLY.  
The vacuum cleaner is leaking.  
Excessive sun light may be shining  
directly into firebox from window.  
Block excessive sunlight. Call authorized Lennox Hearth Products  
dealer if problem persists.  
6. Stove acts as if a  
fire is present when  
there is not a fire in  
the grate.  
The igniter element may have failed.  
Check igniter element fuse in rear stove compartment. Call your  
authorized Lennox Hearth Products dealer. See alternate manual  
lighting procedure  
7. Stove will not light.  
There is not enough pellets in the  
grate.  
Prime the feed system (see Initial Start-Up, page 24).  
Photoeye not detecting flame.  
Check connection at control board following yellow wires to all con-  
nectors.  
8. Fault  
Stove has run out of fuel.  
Refill hopper.  
A disk has tripped / pressure switch.  
Blower intake, exhaust passages and / or venting system needs  
cleaning (follow routine and annual maintenance procedures).  
If this does not correct the problem contact your local authorized  
Lennox Hearth Products dealer.  
Contact your local authorized Lennox Hearth Products dealer.  
Wire harness and/or control board has  
been damaged – unplug stove and  
contact dealer.  
9. Blowers run con-  
tinuously  
When using a thermostat. Thermostat  
not calling for heat.  
The lights on the control board remain on even when the thermostat  
is not demanding heat. When the thermostat demands heat the  
stove will begin to operate.  
10. All lights on con-  
trol are on but noth-  
ing happens  
If not using a thermostat - Check ther-  
mostat jumper  
Ensure that the thermostat jumper at terminal block is installed and  
making good contact.  
PAGE 40  
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TROUBLESHOOTING Qualified Technicians Only  
Unplug Appliance Before Performing Any Troubleshooting or Maintenance  
Troubleshooting Notes for Qualified Technicians only:  
1.) If a ‘tri-ac’ (switching device within the controls) is blown for a particular component, it is possible for that component  
to run continuously. The ‘tri-ac’ can be blown due to excessive heat or a voltage spike in excess of the specified +/-  
10% of line voltage (120v).  
2.) Many nuisance ‘faults’ can be avoided by properly ‘breaking-in’ the stove. It is strongly recommended that the stove  
be run on the ‘high’ setting until 4 – 8 bags of fuel have been consumed. The auger / feed system will loosen up  
during this period and begin to feed at a slightly faster rate which may have an impact during the ‘start-up’ routine.  
3.) The igniter works by forcing air from the convection (room air) blower, through 2 holes in the igniter tube, and pass-  
ing over the hot igniter probe. This hot air is what causes the pellets to ignite. It is very important that the convec-  
tion jacket is properly sealed with high temperature RTV High Temperature Silicone (all seams and penetrations). If  
there are enough leaks, the igniter will not receive enough air to promote ignition. It is also very important that the  
holes in the igniter tube (located just inside the room air blower convection jacket) not become filled with RTV High  
Temperature Silicone. Ignition will not occur if these holes are blocked.  
PAGE 41  
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REPLACEMENT PARTS LIST  
Door Parts & Body Components  
Item # Part No. / Cat. No. Description  
Stove Model  
Optima 2 FS  
Optima 3 FS & INS  
Optima 2 FS  
Optima 3 FS & INS  
All  
Optima 2 FS  
2
2
14650460  
14750458  
15051547  
61051000  
61057202  
H0257  
Door Assembly, Cast Iron Firebox  
Door Assembly, Cast Iron Firebox  
Gasket Kit, Door, ¾” Rope, (8 Ft.)  
Gasket Kit, Door, 1” Rope, (7 Ft.)  
Gasket Kit, Glass (5/8" x 1/16" x 10 Ft.)  
Glass, Front  
H0258  
H0254  
H0255  
Glass, Side (order 2 if set is needed)  
Glass, Front  
Glass, Side (order 2 if set is needed)  
Optima 2 FS  
Optima 3 FS & INS  
Optima 3 FS & INS  
3
14750406  
Knob Kit, Door (includes latch, 3 washers, nut and All  
door latch receiver)  
4
5
6
7
8
9
10  
11  
12  
13  
14  
15  
16  
16  
14750405  
14650446  
14750700  
14650450  
14650451  
14750449  
14750448  
14650456  
14750465  
14750612  
14750613  
14750617  
14650455  
14750455  
12051409  
Opener, Door Handle  
Hinge Bracket  
Hinge Bracket  
Panel, Left Side  
Panel, Right Side  
Panel, Left Side  
Panel, Right Side  
Panel, Rear  
Panel, Rear  
All  
Optima 2 FS  
Optima 3 FS & INS  
Optima 2 FS  
Optima 2 FS  
Optima 3 FS  
Optima 3 FS  
Optima 2 FS  
Optima 3 FS  
Optima 3 INS  
Optima 3 INS  
Optima 3 INS  
Optima 2 FS  
Optima 3 FS  
Optima 3 INS  
Panel, Left Side  
Panel, Right Side  
Panel, Top (hopper lid)  
Panel, Top (hopper lid)  
Panel, Top (hopper lid)  
Knob, Control Panel Door (6 per package  
w/studs)  
Includes gasket.  
Electrical Parts  
Item #  
17  
27  
Part #  
Description  
Auger Motor  
Blower Assembly, Exhaust  
Blower Motor, Exhaust  
* Blower, Room air, Hard Washer  
Control Board  
Control Board  
Disc, High Limit, 250 DG (L250-30F,60T21)  
Set of 3  
Stove Model  
All  
All  
All  
12046300  
12050011  
12056011  
12146109  
16053941  
16052112  
12147705  
28  
18  
18  
19  
All  
Optima 2 FS  
Optima 3 FS & INS  
All  
18150150  
Fuse, Control Board, 5 Amp, 250 volt, Fast blow, 12  
pk.  
All  
12055908  
12150213  
Fuse, Igniter, 6 Amp, 125 volt, Fast blow, 12 pk.  
Igniter Assembly, Replacement, 380 Watts, 3.3  
Amp.’s, 1 each (includes fuse holder w/fuse)  
Photoeye Kit, Replacement  
Power Cord, 8 feet  
Pressure Switch  
Thermostat, Wall (wire not included)  
Wiring Harness  
All  
All  
20  
22  
23  
25  
24  
26  
14750404  
12058820  
16050001  
16050205  
12050815  
All  
All  
All  
All  
All  
PAGE 42  
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REPLACEMENT PARTS LIST  
Firebox Parts  
Item #  
29  
30  
31  
32  
33  
34  
35  
Part #  
Description  
Clips, Brick  
Clips, Brick  
Firebrick Set, 1 pc.  
Firebrick Set, 3 pc.  
Housing, Igniter Tube  
Housing, Igniter Tube  
UltraGrate  
Stove Model  
Optima 2 FS  
Optima 3 FS & INS  
Optima 2 FS  
Optima 3 FS & INS  
Optima 2 FS  
Optima 3 FS & INS  
All  
13640028  
11750011  
14650011  
14750015  
14650428  
14750421  
12158905  
Auger System Components  
Item #  
37  
38  
39  
39  
Part #  
Description  
Collar & Screw Set, Auger (Set of 3)  
Flange, Auger  
Scraper Rod Assembly  
Scraper Rod Assembly  
Shaft, Auger  
Stove Model  
All  
All  
Optima 2 FS  
Optima 3 FS & INS  
All  
12041300  
20950088  
17150009  
14750410  
11756300  
40  
Misc.  
Item #  
Part #  
Description  
Stove Model  
14650408  
14750409  
14750603  
12151308  
15050058  
14650060  
14750060  
61050003  
61050005  
61057203  
61050016  
12151307  
12055500  
12050093  
Ash Pan  
Ash Pan  
Ash Pan  
Plate, Damper  
Filter, Photoeye  
Gasket, Photoeye  
Gasket, Photoeye  
Gasket, Auger Flange, 5pc.  
Gasket, Exhaust blower, 5pc.  
Gasket, Room air blower, 5pc.  
Gasket, Quick Disconnect 5pc.  
Setscrew, Damper Rod (Set of 6)  
Tool, Grate Scraper  
Quick Disconnect 3” Vent Side  
Optima 2 FS  
Optima 3 FS  
Optima 3 INS  
Optima 2 FS & Optima 3 FS  
41  
All  
Optima 2 FS  
Optima 3 FS & INS  
All  
All  
All  
All  
Optima 2 FS & Optima 3 FS  
All  
All  
42  
43  
44  
45  
46  
47  
* Includes gasket and four nuts.  
2
3
4
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REPLACEMENT PARTS DIAGRAMS  
12  
5
9
6
13  
10  
7
14  
11  
8
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REPLACEMENT PARTS DIAGRAMS  
15  
19  
24  
20  
16  
25  
22  
17  
26  
23  
27  
18  
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REPLACEMENT PARTS DIAGRAMS  
37  
32  
28  
38  
33  
29  
39  
34  
30  
40  
31  
35  
41  
PAGE 46  
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REPLACEMENT PARTS DIAGRAMS  
42  
44  
46  
43  
47  
45  
PAGE 47  
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OPTIONAL ACCESSORIES DIAGRAMS  
Optional Accessories  
Item # Part #  
Model  
Description  
Stove Model  
Optima 2 FS  
Optima 2 FS  
Optima 3 FS & INS  
Optima 3 FS & INS  
All  
1
1
1
1
2
H0448  
H0449  
H0450  
H0451  
14M81  
70K99  
H0442  
H0443  
H0444  
H0445  
H0446  
H0447  
H0244  
H0464  
H0432  
H0416  
TKAO2-G  
TKAO2-N  
TKAO3-G  
TKAO3-N  
QDPC-4  
TSPK-B  
Trim Kit, AO2 Gold  
Trim Kit, AO2 Nickel  
Trim Kit, AO3 Gold  
Trim Kit, AO3 Nickel  
Quick Disconnect Pipe Connector, 4”  
Touch-up Spray Paint Kit, Black  
Surround Kit, Small, 30 ½” x 40 ¾”, Black  
Surround Kit, Medium, 34” x 44”, Black  
Surround Kit, Large, 38 x 48”, Black  
Surround Trim Kit, Small, 30 ½” x 40 ¾”, Gold  
Surround Trim Kit, Medium, 34” x 44”, Gold  
Surround Trim Kit, Large, 38 x 48”, Gold  
Decorative Log Set, Pellet  
All  
3
3
3
4
4
4
5
6
7
SKSAO3  
SKMAO3  
SKLAO3  
STKSAO3  
STKMAO3  
STKLAO3  
DLS-P  
Optima 3 INS  
Optima 3 INS  
Optima 3 INS  
Optima 3 INS  
Optima 3 INS  
Optima 3 INS  
Optima 2 FS  
Optima 3 Series  
Optima 3 INS  
Optima 3 INS  
DLS-AO3  
HEK-AO3  
ZCK-PI  
Decorative Log Set  
Hearth Extension Kit  
Zero Clearance Kit (for installing insert as a built-in)  
Converts from standard 3”  
outlet to 4”  
1
3
4
Optima 3 FS & INS  
4”  
5
Optima 2 FS  
7
6
PAGE 48  
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INSTALLATION TIPS  
PAGE 49  
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SIMPLE OPERATING INSTRUCTIONS LABEL  
PAGE 50  
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SAFETY/LISTING LABEL – Model Optima 2 FS  
Note that your stove’s serial number is printed on the safety label, which is located near the inside of the hopper. Your  
stove’s serial number is preceded by a “WH-”(Example WH-0000000).  
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SAFETY/LISTING LABEL – Model Optima 3 FS and Optima 3 INS  
Note that your stove’s serial number is printed on the safety label, which is located near the inside of the hopper. Your  
stove’s serial number is preceded by a “WH-”(Example WH-0000000).  
PAGE 52  
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OWNERSHIP RECORDS  
Dealer’s Name:  
Dealer’s Address:  
City:  
State:  
Zip Code:  
Serial Number:  
Notes:  
Date of Purchase:  
Date Installed:  
SERVICE AND MAINTENANCE LOG  
Service Service  
Date Technician  
Service  
Description  
PAGE 53  
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1110 West Taft Avenue  
Orange, CA 92865  
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