Lennox Cascade, Merit Cascade Installation And Operation Manual

Download

INSTALLATION AND OPERATION MANUAL

™

Portland

Free-Standing

Pellet Stove

Save These Instructions

For Future Reference

P/N 775,024M, Rev. D, 05/2009

Report No. 050-S-23-2

Pellet Stove

Model Cascade

A French manual is available upon request. Order P/N 775,024CF.

Ce manuel d’installation est disponible en francais, simplement en faire la demande. Numéro de la pièce

775,024CF.

This appliance must be properly installed and operated in order to prevent the possibility

of a house re. Please read this entire manual before installation and use of this pellet

fuel-burning room heater. Failure to follow these instructions could result in property

damage, bodily injury or even death. Contact your local building or re ofcials

to obtain a permit and information on any installation requirements and

inspection requirements in your area.

WARNINGS

• Hot! Do not touch! The glass and surfaces of this appliance will be hot during operation and will retain heat for a while after shutting off the appliance. Severe burns may result.

• Carefully supervise children in the same room as appliance.

• Lennox™ pellet-burning appliances are designed for use as a supplemental heater. They are not intended for continuous use as a primary heat source.

IMPORTANT SAFETY AND WARNIING INFORMATION

READ THIS MANUAL IN ITS ENTIRETY AND UNDERSTAND THESE RULES TO FOLLOW FOR SAFETY.

WARNING

Improper installation, adjustment, alteration, service or maintenance can cause injury or property damage. Refer to this manual. For assistance or additional information consult a qualiﬁed installer, service agency or the gas supplier.

WARNING

Do not attempt to alter or modify the construction of the appliance or its components. Any modiﬁcation or alteration may void the warranty, certiﬁcation and listings of this unit.

1. DO NOT CONNECT THIS UNIT TO A CHIMNEY FLUE CONNECTED TO ANOTHER APPLIANCE.

2. Do not connect this appliance to air ducts or any air distribution system.

3. DO NOT INSTALL A FLUE DAMPER IN THE EXHAUST VENTING SYSTEM OF THIS APPLIANCE.

4. Do not use class B venting intended for gas appliances as a chimney or connector pipe on a pellet ﬁred appliance.

5. The minimum clearances must be maintained for all combustible surfaces and materials including; furniture, carpet, drapes, clothing, wood, papers, etc. Do not store combustibles within this clearance space (see Clearances on Page 5).

6. INSTALLATION DISCLAIMER - This stove’s exhaust system works with negative combustion chamber pressure and a slightly positive chimney pressure. Therefore, it is imperative that the exhaust system be gas tight and installed correctly. Since Lennox Hearth Products has no control over the installation of your stove, Lennox Hearth Products grants no warranty, implied or stated for the installation or maintenance of your stove, and assumes no responsibility for any consequential damage(s).

7. Burning any kind of fuel consumes oxygen. If outside air is not ducted to the appliance, ensure that there is an adequate source of fresh air available to the room where the appliance is installed.

8. The appliance will not operate using natural draft, nor without a power source for the blower and fuel feeding systems.

9. Never use gasoline, gasoline-type lantern fuel, kerosene, charcoal lighter ﬂuid, or similar liquids to start or “freshen up” a ﬁre in this heater. Keep all such liquids well away from the heater while it is in use.

10. The authority having jurisdiction such as municipal building department, ﬁre department, ﬁre prevention bureau, etc should be consulted before installation to determine the need to obtain a permit.

11. APPROVED FUEL: This appliance is designed speciﬁcally for use only with pelletized wood fuels only. This appliance is designed and approved for the burning of wood residue pellets with up to 2% ash content. This appliance is NOT approved to burn cardboard, nut hulls, cherry pits, corn, etc. regardless if it is in pellet form. Failure to comply with this restriction will void all warranties and the safety listing of the stove. Consult with your Lennox Hearth Products dealer for more information on approved pellet fuels.

12. CONTINUOUS OPERATION: When operated correctly, this appliance cannot be overﬁred. Continuous operation at a maximum burn can, however, shorten the life of the electrical components (blowers, motors, and electronic controls), and is not recommended. Typical approved operation would include running at the low to mid range setting with occasional running on the maximum setting during the coldest periods of the winter. The blower speed control should be turned to high when operating the stove on the high heat setting. DO NOT OVER-FIRE THIS STOVE. Follow all instructions regarding the proper use of this stove.

13.CAUTION: NEVER PUT FINGERS NEAR AUGER. This appliance is equipped with a hopper lid switch, which is designed to stop the auger when the hopper lid is opened. NEVER DISCONNECT

OR BYPASSED THIS SWITCH FOR ANY REASON. Pellet fuel is fed

to the UltraGrate™ by a screw auger. This auger is driven by a high torque motor. The auger is capable of causing serious harm to ﬁngers. Keep pellets in the hopper at all times and keep ﬁngers away from auger. The auger can start and stop automatically at any time while the stove is running.

14. CAUTION: HOT WHILE IN OPERATION. An appliance hot enough to warm your home can severely burn anyone touching it. Keep children, pets, clothing and furniture away. Contact may cause skin burns. Do not let children touch the appliance. Train them to stay a safe distance from the appliance.

15. Fly-ash BUILD-UP: For all wood pellet fuel-burning heaters, the combustion gases will contain small particles of ﬂy-ash. This will vary due to the ash content of the fuel being burned. Over time, the ﬂy-ash will collect in the exhaust venting system and restrict the ﬂow of the ﬂue gases. The exhaust venting system should be inspected regularly and cleaned as necessary.

16. SOOT FORMATION: Incomplete combustion, such as occurs during startup, shutdown, or incorrect operation of the room heater will lead to some soot formation which will collect in the exhaust venting system. A precautionary inspection on a regular basis is advisable to determine the necessity of cleaning. The exhaust venting system should be inspected regularly and cleaned as necessary.

17. DISPOSAL OF ASHES: Ashes should be placed in a metal container with a tight-ﬁtting lid. The closed container of ashes should be placed on a noncombustible ﬂoor or on the ground, well away from all combustible materials, pending ﬁnal disposal. If the ashes are disposed of by burial in soil or otherwise locally dispersed, they should be retained in the closed container until all cinders have been thoroughly cooled.

18. The instructions must be strictly adhered to. Do not use makeshift methods or compromise in the installation.

19. Do not abuse the door glass by striking, slamming or similar trauma. Do not operate the stove with the glass removed, cracked or broken.

20. SAVE THESE INSTRUCTIONS.

21. See the listing label on the appliance.

CONGRATULATIONS!

When you purchased your new pellet stove, you joined the ranks of thousands of individuals whose answer to their home heating needs reﬂects their concern for aesthetics, efﬁciency and our environment. We extend our continued support to help you achieve the maximum beneﬁt and enjoyment available from your new pellet stove.

Thank you for selecting a Lennox Hearth Products stove as the answer to your supplemental home heating needs.

TABLE OF CONTENTS

Important Warnings . . . . . . . . . . . . . . . . . . . . . . . . . . . Page 2

Packaging List . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Page 3

Testing / Listing, EPA . . . . . . . . . . . . . . . . . . . . . . . . . . . Page 3

Using this Manual . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Page 3

Planning Your Installation . . . . . . . . . . . . . . . . . . . . . . . Page 3

Selecting a Location . . . . . . . . . . . . . . . . . . . . . . . . . . . . Page 4

Floor Protection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Page 4

Clearances . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Page 5

Installation Tips . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Page 6

Manufactured Home Installation . . . . . . . . . . . . . . . . . . Page 7

Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Page 7

Damper Adjustment . . . . . . . . . . . . . . . . . . . . . . . . . . . . Page 8

Venting Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . Page 9

Care and Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . Page 17

Fuel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Page 19

Routine Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . Page 20

Speciﬁcations. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Page 25

Component Deﬁnitions . . . . . . . . . . . . . . . . . . . . . . . . . Page 26

Wiring Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Page 27

Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Page 28

Replacement Parts List and Diagrams . . . . . . . . . . . . . . Page 29

Optional Accessories . . . . . . . . . . . . . . . . . . . . . . . . . . . Page 32

Safety / Listing Label . . . . . . . . . . . . . . . . . . . . . . . . . . . Page 33

Product Reference Information . . . . . . . . . . . . . . . . . . . Page 34

This installation and operation manual will help you obtain a safe, efﬁcient, dependable installation for your appliance and vent system.

PLEASE READ AND UNDERSTAND THESE INSTRUCTIONS BEFORE BEGINNING YOUR INSTALLATION

PACKAGING LIST

TESTING / LISTING

Listing: The listing laboratory is OMNI-Test Laboratories, Inc., Portland,

Oregon. The report number is 050-S-23-2 for model Cascade pellet stove.

Testing: In accordance with the speciﬁcations and procedures

• Listed and tested to ASTM E1509 and ULC C1482 / ULC S627 for installations as a freestanding room heater

•

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 residential installation according to current national and local building codes as:

• A Free-Standing Room Heater

• A Manufactured Home Heater

EPA (Environmental Protection Agency)

Status: EPA Exempt - Pellet appliances that are designed with the com-

bustion air supply exceeding the 35 to 1 (by weight) ratio are exempt from EPA regulations and are “non-affected facilities.”

USING THIS MANUAL

Please read and carefully follow all of the instructions found in this manual. Please pay special attention to the safety instructions provided in this manual.

PRODUCT IS SUBJECT TO CHANGE WITHOUT NOTICE

PLANNING YOUR INSTALLATION

Questions To Ask Local Building Ofﬁcial

A correct installation is critical and imperative for reducing ﬁre hazards and perilous conditions that can arise when wood pellet burning appliances are improperly installed. The installer must follow all of the manufacturers’ instructions.

WARNING

Check all local building and safety codes before installation. The installation instructions and appropriate code requirements must be followed exactly and without compromise. Alterations to the stove are not allowed. Do not connect the stove to a chimney system serving another stove, appliance, or any air distribution duct. Failure to follow these instructions will void the manufacturers warranty.

The assembled pellet stove model Cascade®, is packaged with an accessory package which contains the following:

One - Installation and operation instructions manual One - Warranty One - Power cord One - Grate scraper One - 5/32" Allen wrench

The installation of this appliance must conform to local codes and applicable state and federal requirements. Familiarity with these requirements before installation is essential. Important considerations to discuss with local building ofﬁcials include:

Applicable codes (i.e. Uniform Mechanical Code, State or Regional

1. Codes).

Electrical codes:

In USA, NEC, ANSI/NFPA 70 – Latest Edition In Canada, CSA C22.1 – Latest Edition

2. Local amendments

3. Is a permit required - cost. You may wish to contact your insurance company to ask if they require this.

4. If outside combustion air is required

5. Rooms where the installation is not allowed

Power Supply Requirements

These requirements must be met unless otherwise speciﬁed by state or local authorities.

Power Cord - The power cord must be plugged into a standard, 120

• Volt, 60 Hz grounded electrical outlet with proper ground and polarity. The power cord must be routed to avoid contact with any of the hot or sharp exterior surface areas of the stove.

•

Power Supply - The approximate power requirement is 250 watts. Manufactured Home Installations - When installed into a manufac-

• tured home, the appliance must be electrically grounded to the steel chassis of the manufactured home (see Page 7, Manufactured Home Requirements).

WARNING

Electrical grounding instructions: This appliance is equipped with a three-prong (grounding) plug for your protection against shock hazard and should be plugged directly into a properly grounded threeprong receptacle. Do not cut or remove the grounding prong from this plug. Do not route power cord under or in front of appliance.

Surge Protectors

A surge protector is recommended to ensure the stove’s electrical components are not damaged due to a surge in the electrical supply. Only high quality protectors listed to UL1449 should be used - low quality protectors do not provide the protection needed.

Smoke Detectors

Since there are always several potential sources of ﬁre in any home, we recommend installing smoke detectors. If possible, install the smoke detector in a hallway adjacent to the room (to reduce the possibility of occasional false activation from the heat produced by these appliances). If your local code requires a smoke detector be installed within the same room, you must follow the requirements of your local code. Check with your local building department for requirements in your area.

• Existing Chimneys

• Pellet Fuel Storage

• Aesthetic Considerations

• Roof Design (rafter locations and roof pitch)

• Room Trafﬁc

• Proximity to Combustibles

• Electrical Wiring

CAUTION

The body of these appliances are very heavy. The use of a heavy duty escalara (stair step hand truck) is recommended for lifting the appliance body.

NEGATIVE PRESSURE WARNING

This appliance is not designed to be operated in a negative pressure environment. In very airtight homes with large kitchen exhaust fans, furnace cold air returns, fresh air exchange systems and any other air system in close proximity to the heating appliance may create a negative pressure in the same room as the heating appliance. This can create dangerous condition, drawing combustion by-products into the home. Be sure your home has adequate makeup air to eliminate negative pressures caused by the above-mentioned sources. Outside air connected to the appliance probably will not resolve such a problem as the stove is not the source of negative pressure. Lennox Hearth Products accepts no liability for damages resulting from negative pressures described here.

Ventilation Requirements - Provide adequate air for combustion. The fresh air requirements of this appliance must be met within the space where it will be installed. Ventilation is essential when using a solid-fuel-burning heater. In well insulated and weather tight homes, it may inhibit the rate the exhaust ﬂows through the venting system (caused by a shortage of air in the home). The lack of air is caused by many common household appliances which exhaust air from the home (such as a furnace, heat pump, air conditioner, clothes dryer, exhaust fans, ﬁreplaces, and other fuel burning appliances). Also, the combustion process of this heater uses oxygen from inside the dwelling. If the available fresh air delivery in the dwelling is insufﬁcient to support the demands of these appliances, problems can result (i.e. excessive negative pressure will result in performance problems. To correct this problem it may help to open a window (preferably on the windward side of the house) or install an outside combustion air duct to the appliance.

Installation / Maintenance Standards

National Fire Protection Association – The primary NFPA standard that refers to installation and maintenance of pellet appliances and venting is NFPA 211 – Latest Edition: Chimneys, Fireplaces, Vents, and Solid Fuel appliances.

SELECTING A LOCATION

The design of your home and where you place your stove will determine its value as a source of heat. This type of appliance depends primarily on air circulation (convection) to disperse its heat, and therefore, a central location is often best. There are other practical considerations, which must be considered before a ﬁnal selection of locations is made. Some of which includes:

NOTE: DIAGRAMS & ILLUSTRATIONS ARE NOT TO SCALE

FLOOR PROTECTION

This appliance requires noncombustible ﬂoor protection (the hearth pad or alternate ﬂoor protection material does not require a thermal rating).

A noncombustible ﬂoor protector must fully cover the area beneath the appliance as illustrated in Figure 1.

If the ﬂoor protection is to be stone, tile, brick, etc., it must be mortared or grouted to form a continuous noncombustible surface. In Canada, if a chimney connector / venting extends horizontally over the ﬂoor, protection must also cover the ﬂoor under the connector / venting and at least 2” (51 mm) to either side (recommended but not required in the US). See Clearances and Hearth Protection shown in Figure 1.

Up to * 6”(153mm)

minimum

Rear Wall or Alcove - Clearance to Combustibles

Combustible

6”

(153mm)

minimum

6” (153mm)

Floor Protector

*Note: When installed at clearances less than 6”, ﬂoor protection is only required

to extend to the wall. Refer to Page 4 for chimney/venting ﬂoor protection requirements and recommendations.

minimum

6”

(153mm)

minimum

Figure 1 - Floor Protection Requirements

CLEARANCES

Standard residential or manufactured home installation. These appliances require the following minimum clearances to combustibles.

MINIMUM CLEARANCES TO COMBUSTIBLE MATERIALS

NE PAS ENLEVER CETTE ÉTIQUETTE DÉGAGEMENT MINIMUM POUR LES MATÉRIAUX COMBUSTIBLES

Freestanding Stove Installation / Installation Du Poêle Autonome Manufactured (Mobile) Home Or Residential Installation / Installation Résidentielle

Ou Dans Une Maison réfabriquée (Mobile)

A - Sidewall to unit 4” / 102 mm

B - Backwall to unit 1” / 25 mm

C - Sidewall to unit Corner 1” / 25 mm

D - Max. Depth of Alcove

E - Flue to Wall

F - Ceiling Height above stove top 21-1/2” / 522 mm

· Alcove Measurements (see Figure 4): Height, Minimum – 49” (1245

mm), Width Minimum – 32” (813 mm), Depth Maximum – 24” (610 mm)

24” / 610 mm

3" / 76mm

v See vent manufacturer to verify clearances

Table 1

Combustible

Figure 2

Corner - Clearance to Combustibles

Combustible

Figure 3

Rear Wall or Alcove - Clearance to Combustibles

49”

Min.

Combustible

IMPORTANT

•

Minimum clearances speciﬁed may not allow

for ease of operation and maintenance (please take this in to account when planning the instal lation). If installed to the minimum clearances, removal of the appliance may be necessary for servicing.

•

Recommended clearance zone from the front of the

appliance to combustibles is 4 feet minimum.

•

Clearances to combustibles for the appliance

can only be reduced by means approved by the regulatory authority.

24”

Max.

32”

Min.

Figure 4

*Note: Refer to pipe Manufacturer's installation instructions for minimum

pipe clearances.

INSTALLATION TIPS

Select Your Installation Type

GOOD INSTALLATION *

Horizontal Installation

(Direct Vent - Outside Wall)

No natural draft. Wind

pressures may affect operation

REQUIRES 3”

DIAMETER STANDARD

BETTER INSTALLATION

Vertical and Horizontal Installation

(Up and Out)

Some natural draft aids venting. Wind

pressures may still affect operation

Natural draft improves operation and

VENTING TYPE

a: PL-Vent Pipe / Pellet Vent (w/stainless inner liner) b: Stainless Steel ﬂex liner may be used inside existing ﬂue

or chimney (woodstove replacement applications)

CAUTION: Do not use Type B-Vent Pipe

MANUFACTURED

HOME

BEST INSTALLATION

Vertical Installation

(Straight Up)

negative effects from wind

CLEARANCES TO

COMBUSTIBLES

PL-VENT / PELLET PIPE

With listed termination kit. If

installation requires in excess of

11’ of pipe, it is recommended a

4” diameter pipe be used.

Requires outside air for com-

bustion. Use a galvanized or stainless steel pipe for duct.

Minimum duct size 1-5/8” dia.

Ensure all clearances are maintained in accordance to instruc-

tions contained on product

safety label and in compliance

with pipe/venting requirements.

POWER SUPPLY

PLEASE REVIEW THIS ENTIRE

INSTALLATION AND OPERA-

TION MANUAL FOR ADDITIONAL

INSTRUCTIONS.

* In horizontal vent installations It is recommended that when an appliance is vented directly through a wall, a minimum of 6 feet (1.83 M) of vertical pipe is

installed to create some natural draft. This will reduce the possibility of smoke or odor entering the dwelling during appliance shutdown or loss of power.

Must have proper polarity and be grounded.

Note: Use of an extension cord may adversely effect the performance of your unit.

Seal All

Venting Joints:

Use RTV

(high temp silicone)

MANUFACTURED HOME INSTALLATION

In addition to the standard installation instructions, the following instructions may be required by local, state or federal building codes:

• Installation should be in accordance with the Manufactured Home and

Safety Standard (HUD), CFR 3280, Part 24.

• The stove must be permanently bolted to the ﬂoor using four 1/4" Lag

screws. The lag screws must be an adequate length to extend through the hearth pad and into the ﬂoor as shown in Figure 5. Install the lag screws as shown in Figure 5. A minimum of two lag screws must be used.

•

Connecting the Cascade™ stove to outside combustion air is required in manufactured home installations and when required by local building codes. An outside air inlet must be provided for combustion and be unrestricted while unit is in use. Use a galvanized or stainless steel pipe for the duct (the outside air inlet on the stove is 1-5/8” diameter). The air intake on the exterior of the home should always be located a minimum of 18" below the ﬂue termination. The Inlet shall remain free of obstruction while unit is in operation and constructed in a manner so as to prevent material from dropping into the inlet or into the area beneath the dwelling. The inlet shall also have a screen with openings not larger than 1/4" to prevent rodents from entering.

• Stove must be permanently electrically grounded to the steel chassis

of the manufactured home using a 8 GA copper wire and a serrated or star washer (to penetrate paint or protective coating to ensure grounding). The location selected for ground attachment to the stove must be dedicated for this purpose. Grounding must comply with NFPA-70-latest edition standards, CSA C22.1-latest edition in Canada, as well as any local codes.

• See Pages 9 through 16

ments.

•

WARNING: DO NOT INSTALL THIS STOVE IN A SLEEPING ROOM IN A MANUFACTURED HOME.

•

CAUTION: THE STRUCTURAL INTEGRITY OF THE MANUFACTURED HOME FLOOR, WALLS, CEILING/ROOF MUST BE MAINTAINED.

for additional information on venting require-

Manufactured Home Exhaust Vent Pipe Installation Guidelines

This stove is approved for venting with Type L and Type PL pellet vent pipe listed to UL 641 and ULC S609. We recommend the use of venting products manufactured by Security Chimneys International. The pipe should extend at least 3 feet above the part of the roof through which it passes. The top of the pipe should be at least 2 feet above the highest required elevation of any part of the manufactured home within 10 feet of the pipe (see Page 12, Manufactured Home Chimney Height Requirements).

If the exhaust vent exits the manufactured home at a location other than the roof, and exits at a point 7 feet or less above the ground level on which the manufactured home is position a guard or method of enclosing the pipe shall be provided at the point of exit for a height of up to 7 feet. The openings, if any, in this guard shall not allow a 3/4” rod to pass through. A 1/2” rod could pass through but should not be able to touch the pipe when inserted through the opening a distance of 4 inches.

INSTALLATION

Removing Appliance From Pallet

1. After removing the packaging from the stove, lift the hopper lid, and remove any pre-packaged items that were shipped in the hopper. Also open the door assembly and remove any pre-packaged items.

2. Using a 1/2" socket or open end wrench, remove the four nuts from inside the stove legs that secure the stove to the pallet braces.

Figure 5

Bolt

Chassis

Floor Protector

Floor

Grounded to Steel Chassis

NOTE: DIAGRAMS & ILLUSTRATIONS ARE NOT TO SCALE

Figure 6

Front

Door Assembly

Back

Pallet

Bolt locations

Remove 4 nuts inside stove legs.

Installation Check List

It is strongly recommended that you have an authorized Lennox Hearth Products dealer install your stove. If you install your stove yourself, you should review your installation plan with an authorized Lennox Hearth Products dealer.

Check list: Check off each item as you proceed with the installation process.

qRead the ENTIRE stove installation section ﬁrst. qDetermine the appropriate measurements and locations for your

installation.

qFollow the general installation directions under Installation. qBe sure to pre-ﬁt all items before you install, fasten, or set up the

stove permanently.

qMeasure for exhaust (also outside air tube when applicable) and mark

the location. Place the unit in place to make sure it's correct before cutting holes in your wall.

Prior to lighting your appliance:

qReview the Important Warnings section (see Page 2). qReview Fuel Speciﬁcations (see Page 19). qReview and follow instructions in the Care and Operation Section (see

Pages 17 through 19

qPlug power cord connector into corresponding connector on the back

of appliance.

After you have begun operation of your appliance:

q Review the routine cleaning / maintenance information. q Enjoy the warmth from your new Lennox Hearth Products pellet appli-

ance!

Damper Location and Adjustment

The damper is a plate that helps control the amount of airﬂow supplied for combustion. With the damper pulled out all the way, the airﬂow is at its maximum. As the damper is pushed in, the amount of air that is allowed to ﬂow is reduced.

It is very important to preset your damper prior to burning your pellet stove. The damper rod is located on the right side of the stove as shown in

Figure 7

. The damper should be pulled all the way out to the full open

position during initial operation. It may need to be manually adjusted

inward depending on the type of pellet fuel being burned. Adjust in 1/4” increments until optimum combustion air ﬂow is achieved. The damper control adjusts the amount of combustion air to the UltraGrate™. When the damper has been correctly adjusted, you will observe a brisk, yellowto-whitish ﬂame. Fuel should not “pile-up” in the grate. The proper air settings will vary from stove to stove due to installation, altitude, and the fuel being burned.

Initial Setting - Pull damper out to the full open position, then adjust in 1/4” increments until optimum combustion air ﬂow is achieved.

Top View of Stove

Damper Rod

Front

Push in for less air

Pull out for more air

Figure 7 - Damper Control

It will be necessary to monitor the appearance of the ﬂame during the ﬁrst 4-8 bags of pellets. If the ﬂame is smoky red or orange with evidence of soot at the top of the ﬂame, the damper will need to be adjusted to deliver more combustion air (see Figure 7). If the ﬂame is “short” at the higher burn rates and appears to burn the pellets out of the UltraGrate™ faster than they can be resupplied, or there are signiﬁcant variations of ﬂame height within a single burn setting, the damper may need to be adjusted to deliver less combustion air.

After the damper is adjusted, re-evaluate the appearance of the ﬂame. It may be necessary to continue adjusting the damper in increments until proper combustion is achieved (the ﬂame should become a brighter yellow and begin to “dance”).

Once the damper has been properly set, and if the routine maintenance is performed as needed, the damper should not require re-adjustment unless you are changing from a premium grade pellet to a standard or high ash pellet, in which case the damper may need to be moved outward to help prevent the accumulation of ash in the UltraGrate™.

Damper Adjustment Guideline

Lack of Combustion Air: By opening the damper, this will increase com-

bustion air delivery. Symptoms of insufﬁcient combustion air include; unburned fuel, lazy smoky or red / orange ﬂame, excessive ash or soot, excessive buildup on glass, fuel may “pile-up.“

Contributing factors:

• High Altitude – Lack of oxygen

• Restrictive Venting (elbows, horizontal runs, cold external chimneys, etc.).

• Dirty / Poor Quality Fuel.

• Lack of Maintenance

Note: Excessive amounts of Fly-ash built-up in the 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 Pages 20 through 24 for information on cleaning requirements.

Excessive Combustion Air: Adjusting the damper to a more closed position will reduce the combustion air delivery. Symptoms of excessive air include; fuel burns too quickly (results in smoking or smoldering pellets), white to yellow ﬂame, etc. If the damper is open too far, the burning pellets will lift off the grate and ﬂy up into the air much like popping corn does. Another ﬂame characteristic of a damper that is open too far is a ﬂame that has signiﬁcant variation in height on any single burn setting.

Note: Excessive combustion air reduces efﬁciency.

Contributing factor:

•· Venting system providing excessive draft.

• Dry, hot burning fuel

Correct Combustion Air / Proper Burn Characteristics: When the damper is correctly set, the burning pellets should move (wiggle) around slightly and the ﬂame should be bright yellow and stay at relatively even height.

Outside Air Installations

Connecting the Cascade™ pellet stove to outside combustion air is optional, except in manufactured (mobile) home installations and when required by local building codes. The stove’s air intake will accept 1-5/8” ID pipe to accommodate outside air installations. The air intake on the exterior of the home should always be located a minimum of 18" below the ﬂue termination and must remain free of obstruction. The inlet must also have a screen with openings not larger than 1/4" to prevent rodents from entering.

VENTING REQUIREMENTS

It is recommended that only an Lennox Hearth Products dealer install your pellet stove. The speciﬁed installation requirements must be followed to ensure conformity with both the safety listing of the appliance and local building codes. All clearances, installation instructions and precautions speciﬁed by the vent manufacturer must be followed.

Offsets

In every installation, a single or double clean-out “tee” is recommended for every ninety-degree offset (this tee will help collect ash residue and will allow for routine cleaning without the need to disconnect sections of pipe).

Pipe Clearances/Requirements

Selecting a Location

Review the appliance clearance requirements before installing the venting system (see Page 5). Position the appliance far enough away from walls to allow adequate room for servicing. Choose the appliance location with the least amount of interference with the house framing, plumbing, wiring, etc.

Preferred Vent Conﬁguration

For the best performance, we recommend a vent run design which runs vertically and terminates above the roof line. This design will allow natural draft to improve the ﬂow of ﬂue gases and will aid in combustion and stove performance.

Type of Pipe

This stove is approved for venting with Type L and Type PL pellet vent pipe (sometimes referred to as “L-Vent pellet vent”, listed to UL 641 or ULC S609). We recommend the use of venting products manufactured by Security Chimneys International. Connect the pellet vent pipe or the “tee” to the ﬂue collar using a minimum of three screws and seal as speciﬁed in “Pipe/Liner Joint Requirements” on this page. Do not use class B gas

chimney or single wall chimney as a substitute.

Size of Pipe

These pellet appliances are approved for use with the following vent sizes: 3” (75 mm) standard, or 4” (100 mm), see Page 13 - for determining correct size vent. When 4” pipe is used: for horizontal vent installations use a 3” (75 mm) to 4” (100 mm) adapter - available from vent manufacturer. For vertical installations use a 3” (75 mm) to 4” (100 mm) “tee”

- available from vent manufacturer.

See pipe manufacturers instructions for installation of venting components and clearances. Follow pipe manufacturers installation precautions for passing pipe through a combustible wall or ceiling (i.e. use an approved thimble).

Notes

• Offsets and horizontal runs accumulate ﬂy-ash and soot which reduces the exhaust ﬂow and performance of the stove.

• Total Offsets in venting system should not exceed 270° total in direc tion change.

• Maximum Vertical Vent - 30 feet (9.14 M)

• Horizontal Runs - The maximum total horizontal run must not exceed 10 feet (3.1 meters).

• Horizontal run of pipe requires 1/4” (7 mm) rise per foot.

• Pellet vent pipe requires 3” (75 mm) clearance from outside of pipe unless otherwise speciﬁed by vent manufacturer - all diameters: 3” (75 mm) and 4” (100 mm). A support bracket must be installed every 4 feet (1.2 m) of pellet vent pipe on the exterior wall of the house unless otherwise speciﬁed by vent manufacturer.

• It is not recommended to terminate exhaust vent on the prevailing wind side of the house.

• In Canada, where the venting may pass through a wall, or partition of combustible materials, the installation shall conform to CAN/CSAB365. When installing the wall thimble and other venting components, follow the vent manufacturers instructions. Maintain an effective vapor barrier at the location where the chimney or other component penetrates to the exterior of the structure.

NOTE: DIAGRAMS & ILLUSTRATIONS ARE NOT TO SCALE

Pipe/Liner Joint Requirements

Vent Termination

Silicone sealant and three screws are required to secure the ﬁrst vent connection to the appliance ﬂue collar. Secure and seal the remaining vent sections per the vent manufacturers instructions. ALL horizontal joints must be sealed gas-tight (air tight, sealed connection). Use RTV high temperature silicone or Interam, if necessary, to provide a complete seal between vent sections.

Connection to Masonry Chimney through a Wall

Be sure to verify the construction of a masonry chimney, as it may have combustible framing.

Approved liner when relining Masonry or Factory Built Fireplaces is 2100HT (degree F.) liner listed to UL 1777 or ULC S635.

Connection to an Existing Class A Chimney

A chimney adapter can be used to make the connection from 3” (75 mm) or 4” (100 mm) pellet vent pipe (listed to UL 641 or ULC S609) to existing UL chimney system. Verify with the pipe manufacturer that your pipe brands will interconnect.

Horizontal Vent Installations

On all horizontal vent installations (short, horizontal runs with no vertical pipe); care should be taken when choosing a location for terminating the vent. It is not recommended to directly vent the exhaust on the prevailing wind side of the house. It is recommended that when an appliance is vented directly through a wall, a minimum of 8 feet (2.5 m) of vertical pipe should be installed to create some natural draft. This will reduce the possibility of smoke or odor entering the dwelling during appliance shutdown or loss of power.

Do not terminate vent in an enclosed or semi-enclosed area such as: carports, garage, attic, crawl space, under a deck, porch, narrow walkway, closely fenced area, or any location that can build up a concentration of fumes such as a stairwell, covered breezeway etc.

Vent surfaces can get hot enough to cause burns if touched. Adults should supervise children when they are in the area of a hot stove. Non-combustible shielding or guards may be required.

Termination Cap

The termination of the outside chimney of the pellet stove shall be located in accordance with the following:

A. Higher than 3 feet (.92 m) above any forced air inlet (air conditioner,

etc.) located within 10 feet (3 m).

B. Not less than 4 feet (1.2 m) below, 4 feet (1.2 m) horizontally from or

1 foot (3.1 m) above any gravity air inlet (door, window, etc.) which ﬂue gases could reenter the dwelling.

C. Not less than 2 feet (.6 m) from combustible materials such as an

adjacent buildings, fences, protruding parts of the structure, roof overhang, plants and shrubs, etc. and not less than 7 feet (2.1 m) above grade when located adjacent to the public sidewalks (access). The ﬁnal termination of the exhaust system must be conﬁgured so that ﬂue gases do not jeopardize the safety of people passing by, overheat combustible portions of nearby structures or enter the dwelling.

D. Not less than 3 feet (.92 m) below an eave (maximum overhang of 3

feet (.92 m) or any construction that projects more than 2” (51 mm) from the plane of the wall.

E. The distance from the bottom of termination to grade is 12” (305 mm)

minimum. This is conditional upon plants and nature of grade surface: Be careful to choose a location for the vent termination which does not expose people or shrubs to high heat from the exhaust gases. The exhaust gases are not hot enough to ignite grass, plants and shrubs located in the vicinity of the termination although they should be a minimum of 3 feet (.92 m) away. The grade surface under the termination must not be a lawn.

F. Since sparks may escape from the exhaust pipe of any stove, use

caution when positioning the vent pipe. Refer to pipe manufacturer’s instructions when installing and terminating the exhaust. The vent pipe should be horizontal and never run the pipe in a downward direction (recommend a 1/4” [7 mm] rise per foot horizontal).

NOTE: DIAGRAMS & ILLUSTRATIONS ARE NOT TO SCALE

Vent Termination Locations

Vent Terminal Area Where Terminal Is Not Permitted

(From Eave)

Vertical Terminal

Fixed Closed

Able To Open

24”

(610mm)

Air Supply Inlet

24”

(610mm)

A = Clearance above grade, veranda, porch, deck, or bal-

cony (min. 12”/30cm)

B = Clearance to window or door that may be opened (min.

12”/30cm above - 48”/1.2m below and to the side)

C = Clearance to permanently closed window *(min.

D = Vertical clearance to ventilated sofﬁt located above

12”/30cm)

the terminal within a horizontal distance of *(min. 24”/60cm) from the centerline of the terminal (min.

22”/55cm) check with local code. E = Clearance to unventilated sofﬁt *(min. 12”/30cm) F = Clearance to outside corner *(min. 12”/30cm) G = Clearance to inside corner *(min. 12”/30cm) H = Not to be installed above a meter/regulator assembly

within *(min. 36”/90cm) horizontally from the center-

line of the regulator. J = Clearance to service regulator vent outlet *(min.

72”/1.8m) K = Clearance to non-mechanical air supply inlet to build

ing or the combustion air inlet to any other appliance

Figure 8

*(min. 48”/1.2m)

L = Clearance to a mechanical air supply inlet *(min.

120”/3.1m)

M = **Clearance above paved sidewalk or a paved driveway

located on public property *(min. 84”/2.1m)

N = ***Clearance under veranda, porch, deck, or balcony

(min. 12”/30cm)

Note:

* Local codes or regulations may require different clear

ances.

** A vent shall not terminate directly above a sidewalk or

paved driveway which is located between two single family dwellings and serves both dwellings.

*** Only permitted if veranda, porch, deck, or balcony is

NOTE: DIAGRAMS & ILLUSTRATIONS ARE NOT TO SCALE

fully open on a minimum of two sides beneath the ﬂoor.

Chimney Height Requirements - Site Built Residential Home

Less than

10 Feet (3 m)

10 Feet

(3 m)

3 Feet (914 mm)

Minimum

2 Feet (610 mm) Min.

3 Feet

(914 mm)

Min.

m = meter mm = millimeter

The vent termination height required is - USA, 1-foot minimum; Canada 3-feet minimum above the roof penetration point as illustrated below (Ref. USA - National Standard, NFPA 211 and Canada National Standard CSA B365-01). Check with your local building ofﬁcial for additional requirements for your area.

To pass inspection in nearly any jurisdiction, the chimney must meet both safety and exhaust ﬂow requirements. The (3’ by) 2’ by 10’ rule applies to both masonry and factory built chimneys

* Ref. USA - National Standard, NFPA 211-latest edition and Canada National Standard CSA B365-01-latest edition. Vents installed with a listed cap shall terminate in accordance with the terms of the cap’s

listings.

Termination Cap Must Be Listed To UL 641 or ULC S609

USA 1 Foot Minimum CANADA 3 Feet Minimum

*Min. 2 ft. clearance

is required to comTermination height is measured above the highest point where it passes through the roof surface.

bustibles (i.e. cedar

shake roof, etc.)

Figure 9 - Site Built Residential Home Chimney Height Requirements

Chimney Height Requirements - Manufactured Homes

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.

Requires A Listed Termination Cap *

Top Of Flue Must Be 2’ Higher Than Any Part Of Roof Within 10’ Horizontal

Top Of Flue Must Be 3’ Higher Than Highest Point Of Roof Penetration

Termination When Connected to Masonry Chimney or Existing Class A Chimney

A ﬂexible corrugated chimney liner has much greater resistance to the ﬂow of ﬂue gases than does a rigid liner. For this reason we recommend that a larger, 4” liner be used on vertical runs exceeding 15 feet or that rigid venting be used . See Figure 11.

If a ﬂexible corrugated chimney liner is used, it must be fully extended to eliminate any sagging and to improve the exhaust ﬂow.

Listed Pellet Vent

1’ Section of PL Vent (listed to UL 641 or ULC S609)

3” or 4” liner (listed to UL 1777 or ULC S635)

Termination Cap

Chase Cover

Termination When Connected to Masonry Chimney or Existing Class A Chimney

Figure 11 - Existing Chimney Termination

Figure 10 - Manufactured Home Chimney Height Requirements

NOTE: DIAGRAMS & ILLUSTRATIONS ARE NOT TO SCALE

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 following guidelines, then plot the number and the altitude on the installation chart (Figure 12).

4" Diameter Only

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 (Figure 12) to determine if your installation requires 3” or 4” exhaust pipe.

Installation Chart

Type of Pipe # of Elbows or

Feet of pipe

90° Elbows / Tee (A & G)

45° Elbows (C)

Horizontal (B & F)

Vertical(E) x .5 Ft. (.15m)

Equivalent Feet Total Equivalent

Feet

x 5 Ft. (1.5 m)

x 3 Ft. (1 m)

x 1 Ft. (.3m)

Table 2

Sample Installation Chart

Type of Pipe # of Elbows or

90° Elbows / Tee (A & G)

45° Elbows (C)

Horizontal (B & F)

Vertical (E) 8 x .5 Ft. (.15m) 4 (1.2m)

Total Equivalent Feet = 20

Feet of pipe

2 x 5 Ft. (1.5 m) 10 (3m)

1 x 3 Ft. (1 m) 3 (1m)

3 x 1 Ft. (.3m) 3 (1m)

Equivalent Feet Total Equivalent

Feet

Table 3 - Sample Chart for Figure 13

3 or 4”

Diameter

Equivalent Pipe Length (Feet)

Altitude x 1000 Feet

Figure 12 - Pipe Selection Chart

NOTE:

All equivalent pipe styles shown are standard for all freestanding models.

A- 90 Degree Elbow B- 1’ Horizontal Pipe C- 45 Degree Elbow D- Standoff Braces E- 8’ Vertical Pipe F- 2’ Horizontal Pipe G- 90 Degree Tee H- Wall Thimble

Figure 13 - See Sample Installation Chart

NOTE: DIAGRAMS & ILLUSTRATIONS ARE NOT TO SCALE

Standard Horizontal Vent Installation

Installing the Cascade™ Pellet Stove This stove is approved for venting with Type L and Type PL pellet vent pipe listed to UL 641 or ULC S609. We recommend the use of venting products manufactured by Security Chimneys International.

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 accommodate 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.

ALL INTERLOCKING PIPE CONNECTIONS MUST BE SEALED GAS-

TIGHT AND SECURED TOGETHER PER VENT MANUFACTURER INSTRUCTIONS.

Position the stove approximately 12” (305 mm) from the wall on the

ﬂoor pad. Push the “PL” pipe through the wall thimble. Squeeze a bead of high temperature silicone (RTV) sealer around the end of the machined portion of the 3” (76 mm) pipe connector on the back of the stove. Firmly push on a section of “PL” pipe until inner pipe liner pushes into the bead of RTV sealer.

3. Push the stove with pipe attached towards the wall (the pipe will go through the wall thimble). Do not position the back of the stove closer than 1” (25 mm) from the wall (see Clearances, Page 5).

4. Install listed type “PL” 45 degree elbow with rodent screen or cap on outside end of pipe. The Inlet shall remain free of obstruction while

unit is in operation and constructed in a manner so as to prevent material from dropping into the inlet or into the area beneath the dwelling. The inlet shall also have a screen with openings not larger than 1/4"

to prevent rodents from entering.

5. If the installation includes a source of outside combustion air; cut a separate hole through the wall for the fresh air tube. This tube should be 1-5/8” (42 mm) minimum diameter I.D., steel only. Connect outside air pipe to air inlet on stove. This tube must be terminated with a 45 degree elbow or hood.

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 together per the vent manufacturers instructions. If vented horizontally, joints must be made gas-tight (air tight, sealed connection) in a manner as speciﬁed on this page (see instruction #2). INSTALL VENT AT CLEARANCES

SPECIFIED BY THE VENT MANUFACTURER.

• Greater back clearance will improve the ease of serviceability of the stove.

• The end of the exhaust pipe must extend a minimum of 12” (305 mm) from the outside of the building.

A. Use RTV Here B. Quick Disconnect Fitting C. 3”(75 mm) PL-Vent Pipe D. Wall Thimble E. Hole in Wall F. 45 Elbow or End Cap G. Combustion Air Inlet *

Figure 14 - Horizontal Vent Installation

Silicone sealant and three screws required on the ﬁrst vent connection. Secure and seal the remaining vent sections PER VENT MANUFACTURER INSTRUCTIONS.

NOTE: DIAGRAMS & ILLUSTRATIONS ARE NOT TO SCALE

12” (305 mm) Min. From Outer Wall

NOTE: Connect “C”to “F”

* Connect a Metal Fresh Air Pipe - OPTIONAL (EXCEPT FOR MOBILE HOME INSTALLATIONS)

12”(305 mm) From Ground or Other Surface

Standard Horizontal Installation Conﬁgurations

Corner Through the Wall

Top View Illustration

Wall

llaW

Outside Air Intake

12" (305 mm) Minimum From Outer Wall

Corner Through the Wall

Top View Illustration

Horizontal Vent Through the Wall

Side View Illustration

Wall

llaW

1" (25.4 mm)

Minimum

12" (305 mm) Minimum From Outer Wall

45 Degree Elbow

12" (305 mm) From Ground or Other Surface

6" / 152 mm

Minimum

Hearth Pad / Floor Protection

Outside Air Intake

12" (305 mm) Minimum From Outer Wall

Model: Cascade

Maintain minimum clearances speciﬁed by vent manufacturer between wall and pipe. If you vent to the furthest wall, the vent pipe must maintain the speciﬁed clearance parallel to the other wall.

Notes:

• It is not recommended to terminate exhaust vent on the prevailing wind side of the house.

Figure 15 - Corner Through the Wall

1” (26 mm)

Minimum

Outdoors

Note: Horizontal run of pipe requires 1/4” (7 mm) rise per foot.

Figure 16 - Parallel Through the Wall

NOTE: DIAGRAMS & ILLUSTRATIONS ARE NOT TO SCALE

Standard Vertical Installation Conﬁgurations Model: Cascade®

This appliance may be connected to an existing ﬂue or by installing type “PL” vent pipe (listed to UL 641 and ULC S609). If a liner is run all the way to the top of the existing chimney, 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 Vent Termination Requirements on Pages 9 through 11.

Preferred Installation – Vertical Vent Through the Roof

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.

Note: See Pages 9 through 11 for Vent Termination Requirements.

Listed Rain Cap

Exterior Vertical Vent

Vertical Vent Into a Masonry Flue

Optional Complete Liner and Listed Termination Cap

Maintain clearances speciﬁed by vent manufacturer

Listed Rain Cap

Wall Straps Required Every 4 Feet Minimum

Maintain clearances speciﬁed by vent manufacturer

Figure 17

Listed Rain Cap

Optional Clean-Out Access Door

Vertical Vent Through the Roof

Maintain clearances speciﬁed by vent manufacturer

Interior Vertical Vent into an Existing Class A Chimney

Flashing

Clean-Out

Tee

Figure 19

Listed Rain Cap

Existing Chimney Pipe

Pipe Increaser

Extend Pipe to the Top if Existing Chimney is Corroded or Damaged

Maintain clearances speciﬁed by vent manufacturer

Figure 18

NOTE: DIAGRAMS & ILLUSTRATIONS ARE NOT TO SCALE

Clean-Out

Tee

Figure 20

CARE AND OPERATION

Simple Operating Instructions

1. Start

FIRST TIME USE

2. Preparation a] Check hopper and remove

any materials from hopper and auger

b] Check cast UltraGrate for

proper fit (ensure cast UltraGrate is set securely in the base - see Figure 22)

c] Check door gasket and door

latch to ensure tight seal (see Figure 30)

d] Connect power cord to

grounded power supply outlet

3. Priming the Auger

(Optional)

a] Fill hopper with pellets

Note: Use quality grade pellet fuel

b] Move the "HEAT OUTPUT"

switch on the control panel to the “HIGH HEAT” position to activate the auger.

e] Wh en p el le ts begin to

drop from feed tube into UltraGrate, turn switch to "OFF"

4. Stove is now ready for start-up

5. To Start Your Stove

a] Check hopper, and ﬁll with

pellets, if necessary.

b] Place a small amount of an

approved (non-volatile) gel ﬁre starter on top of the pellets in the UltraGrate. Using a match, light the pellets. Close Door.

b] Turn the "HEAT OUTPUT"

switch to the "LOW HEAT" setting.

The convection blower will be activated when the HEAT OUTPUT switch in on low or high.

6. Pellets will drop into UltraGrate and stove will light in approximately 3 to 7 minutes

Does the Stove Light?

Yes

7. The stove will enter "heat-

ing" mode and run at the chosen setting

8. After approx. 5 minutes

adjust damper if necessary to obtain a bright vibrant ﬂame.

Notes:

• If the damper is too far

inward the ﬂame will be lazy/sooty and the fuel will pile up in the UltraGrate (see Page 8).

• If the damper is too far

outward the ﬂame might burn erratically.

Se e Pa ge 8 for fur ther instructions on adjusting the damper.

Heat Output

Auger On Indicator

7a. Follow the troubleshooting

section in this manual

Does the Stove Light?

Contact your Lennox Hearth Products dealer for further assistance

9. To Turn Off Pellet Stove

a] Turn the "HEAT OUTPUT"

switch to the "OFF" position.

Yes

b] Stove goes into cool-down

mode. Pellets stop feeding and the ﬁre goes out within 2 minutes after the auger is shut off, the room air blower and exhaust blower will automatically shut off in approximately 15 minutes.

10. Thank you for purchasing a Lennox

Hearth Products Pellet Stove

END

NOTE: DIAGRAMS & ILLUSTRATIONS ARE NOT TO SCALE

Control Board

Heat Output Switch - The Heat Output switch activates both the con-

vection and combustion blowers and the auger motor. If the exhaust does not reach operation temperature within 25 minutes, the stove will automatically shut down. If this occurs, repeat the lighting procedure (pre-lighting instructions).

“OFF” position - The “Off” position on the Heat Output switch will turn the stove off by turning off the auger motor. The remaining fuel in the grate will safely burn up. Once the stove has cooled sufﬁciently the blowers will shut off automatically.

“HIGH HEAT” position - The “High Heat” position on the Heat Output switch will increase the fuel feed rate and blower speed for maximum heat output.

“LOW HEAT” position - The “Low Heat” position on the Heat Output switch will decrease the fuel feed rate and blower speed.

Auger “On” Light - The red L.E.D. light on the control panel indicates when there is power to the auger motor. Under normal operation, this light will blink on and off.

Fuel Feed Trim Control - The fuel feed trim control on the control panel should be used when the damper control will not correct a poor combustion problem. Turning the trim control counter clockwise will decrease the amount of fuel entering the UltraGrate™ and turning the trim control clockwise will increase the amount of fuel entering the UltraGrate. The trim adjustments compensate for fuel differences. Factory set “ON” time is 1.9 seconds. The trim range is 1.6 to 4.5 seconds. Factory “OFF” time for low is ﬁxed at 4.2 seconds and for high it is ﬁxed at 2 seconds.

Note: This control board is not thermostat or igniter capable.

Heat Output

Auger On Indicator

Fuel Delivery Rate

Feed Rate Setting

Low = 1.9 on / 4.2

High = 1.9 on / 2

Auger Motor ON/OFF Time (seconds)

off (+/- 5%)

Auger “ON Time” Trim (seconds)

1.6 to 4.5 seconds

* Lb.’s per hour fuel delivery

1.5 Lb.’s / hr.

3.5 Lb.’s / hr.

**Approximate BTU per hour fuel delivery

12,600 BTU / hr

30,000 BTU / hr

Burn Time (hours)

Table 4

Initial Start-up / Empty Hopper Or Feed Tube:

During an initial start-up, or in the case where the hopper has run out of fuel, it will be necessary to prime the auger feed system.

To prime the auger feed tube:

1. Ensure all packing material and foreign objects are removed from the hopper. Fill the hopper with recommended pellet fuel and plug the stove into the wall outlet.

2. Move the Heat Output switch on the control panel to the “HIGH HEAT” position to activate the auger and blowers.

3. Look through the combustion chamber door and when you can see the ﬁrst pellets dropping into the grate, the auger is fully primed. This will take up to 10 minutes.

Starting Your Pellet Stove

1. After the auger is fully primed, adjust the Heat Output switch to the “OFF” position.

2. Place a small amount of an approved (non-volatile) gel ﬁre starter on top of the pellets in the UltraGrate (if chips are used as ﬁrestarter, place chips in UltraGrate ﬁrst then place pellets on top). Consult with your authorized Lennox Hearth Products dealer for approved ﬁre starting products). DO NOT USE FLAMMABLE LIQUIDS TO START YOUR STOVE.

3. Light the ﬁre starter in the UltraGrate with a match and close the door.

4. After approximately 10 seconds, move the Heat Output switch on the control panel to the “LOW HEAT” position. You will notice that the ﬁre will become active and there will be air coming from the Heat Exchange Tubes and pellets will now begin to feed into the UltraGrate.

5. After the ﬁre is burning well, adjust the Heat Output switch to the desired setting. Adjust the damper control if necessary for proper combustion. Look for a brisk, bright yellow to whitish ﬂame.

Remember, different brand fuels feed at different rates.

Figure 21 - Control Board

Fuel Delivery Rate

The feed rate switch manages the fuel delivery rate by controlling the amount of time the auger motor will run as follows:

* Feed rates are approximations only. Actual feed rate will vary depend-

ing on size, quality and length of fuel used and variations in line voltage.

** Estimated heat input based on fuel value of 8,400 BTU per lb. of

fuel.

Note: It is normal for some ash to build up on the inner glass surface at the lower burn settings.

Turning Off Your Stove

Move the Heat Output switch to the “OFF” position. This will stop the fuel feed and any remaining fuel in the grate will safely burn up. The blowers will continue to run until the stove has cooled off sufﬁciently and will then shut off automatically.

WARNINGS

• Never empty pellets from the Burn-Pot into the hopper. Pellets that may appear to be cool may retain enough heat to ignite other pellets resulting in smoke or ﬁre damage.

• DO NOT OVERFIRE THIS STOVE. This may cause serious damage to your stove and void your warranty. It also may create a ﬁre hazard in your home. IF ANY EXTERNAL PART OF THE UNIT BEGINS TO GLOW, YOU ARE OVERFIRING. Immediately slide the knob to the "OFF" position on the control board.

Filling the Hopper

To ﬁll the hopper when stove is off:

FUEL

1. Lift the hopper lid to it's full opened position.

2. Fill the hopper with pellets.

3. Check to make sure there are no remaining pellets on top of the hopper that may prevent the hopper lid from fully closing.

4. Close Hopper lid.

To ﬁll the hopper when stove is in operation:

1. Repeat steps 1 thru 4 above.

2. When ﬁnished, check the red Auger “On” Light on the control panel to verify that the stove is still in normal heating mode. The Auger “On” Light indicates when there is power to the auger motor. Under normal operation, this light will blink on and off.

3. If the Auger “On” Light on the control panel is off, the hopper lid has been open too long and unit has gone into shut-down mode. To relight, follow lighting instructions on Page 17.

Caution: Failure to ensure pellets in the UltraGrate remain burning after re-fueling may result in smoke escaping from the unit.

Lighting

Follow instructions on Page 17.

Automatic Safety Features

Power Outage: During a power outage, the stove will shut down safely.

It will not automatically restart when the power is restored. However, a momentary power interruption may not shut your stove down.

A small amount of smoke may leak from the top of the window glass, the hopper and from the combustion 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 a safety hazard. It may set off your smoke alarm. To re-light the stove, follow the normal procedure for starting your stove.

CAUTION

The use of unapproved, dirty, wet and / or high salt content fuel will void the warranty!

Fuel Speciﬁcations - Using the Ultragrate™ burn system, this appliance

has been designed to burn wood residue pellets only (with up to 2% 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. The pellet fuel should meet P.F.I. (Pellet Fuel Institute) standards for standard grade or premium grade residential pellet fuel. If the pellet fuel meets these standards, it will be printed on the bag. Any questions regarding pellet fuel can be answered at the Pellet Fuels Institute (PFI), www.pelletheat.org.

Pellet Feed/Pellet Size - The pellet feed system is designed 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 difference 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 combustion air by adjusting the damper. See Page 8 before adjusting the damper.

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 passages in the grate. Even P.F.I. approved pellet fuel may tend to clinker. A clinker can be removed from the UltraGrate™ and placed in the ash pan with the use of the grate scraper/ash pan tool furnished with your stove. See Routine Maintenance (on Pages 20 through 24) for more information on cleaning.

Note: If the area in which you live is prone to frequent power outages, it is recommended that a minimum of 8 feet (2-1/2 meters) of vertical vent pipe be included in the installation to induce a natural draft in the event of a power outage.

Overheating: A high limit thermal switch will automatically shut down the stove if it overheats. The stove will need to be manually re-lit. Allow up to 45 minutes cooling time before re-lighting. If the overheating continues, contact your authorized Lennox Hearth Products dealer for more information.

NOTE: DIAGRAMS & ILLUSTRATIONS ARE NOT TO SCALE

Ash - The frequency of removal of the ash and maintenance 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.

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 Page 8) or the fuel feed trim to compensate (see Page 18).

Note:

See Fuel Delivery Rate on Page 18 for burn times.

PLEASE NOTE

facturing of pellet fuel and will not be held responsible for poor stove performance or any damage caused by poor quality pellet fuels.

Pellet Fuel Storage -

•

Store your wood pellets in a dry place to prevent them from absorbing excess moisture.

•

Do Not store your wood pellets within the clearance zone of the stove.

•

Do Not store your wood pellets in a place that would block removal of the ash pan or block access to refueling the hopper.

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.

The P.F.I. speciﬁcation for standard grade and premium grade residential pellet fuel is as follows:

• CHLORIDES (Salt): Less than 300 p.p.m. to avoid stove and vent rusting.

• BULK DENSITY: 40 lb. / Cu. Ft. minimum

• MOISTURE CONTENT: 8% maximum

• ASH CONTENT: (premium grade)

• FINES: 0.5% maximum through a 1/8” screen

• BTU CONTENT: There are a number of variations in pellet fuels that are not included in PFI standards. For example, BTU (heat value) content may range from just under 8,000 to almost 9,000 BTU, depending upon species and region of the country and other variables.

: Lennox Hearth Products has no control over the manu-

< 2% maximum (standard grade) < 1% maximum

ROUTINE MAINTENANCE

IMPORTANT CAUTIONS:

• UNPLUG POWER CORD AND ENSURE APPLIANCE IS COLD BEFORE PERFORMING ANY MAINTENANCE WORK.

• Some brands of pellets produce more ash and clinkers than others. Therefore the frequency of performing the following cleaning procedures depends to a great degree on the quality of the pellets burned.

• Not cleaning this unit will cause it to burn poorly and will void your warranty for this appliance.

• When removing ash build-up, use an approved ash vacuum only. A cleaning brush can be used to loosen any ash build-up

before vacuuming. DO NOT USE A STANDARD HOUSEHOLD VACUUM OR “SHOP VAC” AS THE FILTERS WILL LEAK THE FINE PARTICLES OF ASH INTO THE HOME.

Notes

• Cleaning schedule will vary depending on quality of pellets used. Burning high ash pellets will require more frequent cleaning.

• Using a drop cloth is recommended as some ash may spill onto the ﬂoor during the cleaning process.

Cleaning

The following areas need to be inspected during routine cleaning:

•· UltraGrate™ (burn grate) (Homeowner)

•· Ash Slide Plates (Homeowner)

•· Ash Pan (Homeowner)

•· Heat Exchange Tubes (Homeowner)

•· Exhaust Passages and Vent Pipe (Qualiﬁed Technician Only)

• Gaskets (Qualiﬁed Technician Only)

• Window Wash (Homeowner)

• Cleaning Rear Stove Compartment (Qualiﬁed Technician Only)

• Blower Cleaning (Qualiﬁed Technician Only)

UltraGrate™ (Burn Grate)

Inspect the UltraGrate periodically so that the air holes don't clog with ash or clinkers. The UltraGrate can easily be cleaned with the grate scraper tool, or it can be removed. It is very important to monitor the ash build up under the UltraGrate, as too much of ash will block combustion air from entering the grate, causing pellets to pile-up in the grate. A clogged grate will reduce the overall performance of the stove, cause dirty glass and if not cleaned may lead to smoke escaping the stove. The ash build-up under the grate is easily dumped into the ash pan by pulling out the ash slides weekly (see Ash Slide Plate, Figures 23 and 25).

(Recommended Frequency of 1 day – 7 days)

Figure 22 - UltraGrate

NOTE: DIAGRAMS & ILLUSTRATIONS ARE NOT TO SCALE

Cleaning UltraGrate™ and

Exhaust Passages

Grate Scraper and Ash Pan Tool

UltraGrate

A, B: Exhaust C, D: Ashslide Openings E: 2. UltraGrate Housing F: 2. Ash Pan

1,2: . Exhaust Passage

2. Access Plates 3,4: . Ash Slide Plates 5: 2. UltraGrate

Pellet Fuel Hopper

It is recommended to open the hopper lid by grasping it on the side as shown in the following picture.

Open Hopper Lid by Grasping the Front Side Be very careful not to touch other hot areas on stove!

Open hopper by grasping the front side, then lift until it hinges back to the full open position.

Figure 24 - Hopper Lid

Ash Slide Plates

Ash that accumulates around the grate can be “dropped” into the ash pan by simply opening the two ash slide plates. The ash slide plates are located under the ash lip of the stove. Using the grate scraper / ash pan tool, grasp each plate and pull it toward you. This will allow the ash to dump or be swept into the ash pan below.

* (Recommended Frequency of 1 day – 2 weeks)

Figure 23

Cleaning Glass:

DO NOT CLEAN THE GLASS WHEN THE STOVE IS HOT.

CAUTION: Do not open the front door when the stove is hot. Clean the glass using a soft cloth or paper towel and a household glass cleaner or gas stove window cleaner. A commercial glass cleaner designed for stoves is recommended. Do not use abrasive cleaners. A damp cloth with a small amount of ash from the ﬁrebox can also be used to clean the glass.

Servicing Glass

CAUTION: BE CAREFUL NOT TO ABUSE THE DOOR ASSEMBLY BY STRIKING OR SLAMMING IT. IF THE DOOR ASSEMBLY OR GLASS IS BROKEN OR DAMAGED, THEY MUST BE REPLACED BEFORE HEATER CAN BE SAFELY OPERATED. USE ONLY COMPONENTS PROVIDED BY THE MANUFACTURER AS REPLACEMENT PARTS.

Replacing Glass:

1. Remove door from stove by lifting door up and off hinge pins: Place the door on a ﬂat protected (towel) clean ﬂat surface with the inside of the door facing up. Remove the glass clips (by removing screws holding clips), then carefully remove broken glass one piece at a time (protective gloves are recommended).

2. Clean area where the glass with gasket will be installed.

3. Install new glass with gasket (use only factory 5 mm glass with glass channel gasket. Do not substitute). Carefully reinstall glass clips. Be very careful not to overtighten screws.

4. Reinstall door.

NOTE: DIAGRAMS & ILLUSTRATIONS ARE NOT TO SCALE

IMPORTANT NOTE: Make sure to fully close the plates when ﬁnished. Failure to close the ash release slide plates completely may cause the fuel to burn poorly (due to reduced air-ﬂow through the grate), which may then cause pellets to “pile up” in the grate.

Sweep ashes into openings on sides

Ash Slide Plates

Ash Dump

(Recommended Frequency of 1 – 2 weeks)

Figure 25 - Cleaning Firebox With Ash Slide Plates

Ash Pan

Heat Exchange Tubes

Note: Periodically check for ash build up under the Ultragrate™. If the ash is allowed to build up to the bottom of the UltraGrate™, there will be a loss of combustion air and the pellets will start to pile up on the grate.

CAUTION: Disposal of Ashes - Ashes should be placed in a metal container with a tight ﬁtting lid. The closed container should be placed on a non-combustible ﬂoor or the ground - well away from all combustible materials, pending ﬁnal disposal. If the ashes are disposed of by burial in soil or otherwise locally dispersed, they should be retained in the closed container until all cinders have been thoroughly cooled.

(Recommended Frequency of 2 days – 2 weeks)

Ash Pan

Figure 26 - Emptying Ash Pan

ENSURE STOVE IS COLD BEFORE CLEANING HEAT EXCHANGE TUBES.

Remove Fly-ash from heat exchange tubes as follows:

1. Ensure the door is secured closed.

2. Open the hopper lid (see

Pellet Fuel Hopper, Page 21).

3. Using the hole in the handle of the grate scraper tool, “grab” onto the heat exchange rake handle located above the door (in the center).

4. Pull the grate scraper tool back and forth several times (upward and forward, then back) to rake a way Fly-ash from the heat exchange tubes.

Note: If a more thorough cleaning of heat exchange tubes is desired, the bafﬂe plate in front of the tubes can be easily removed (slide bafﬂe plate forward until screw heads clear the notches on each side, then remove bafﬂe). With bafﬂe plate removed, use a small brush to clean between tubes (see Pages 22 and 32, item #3).

Note: The bafﬂe plate should be removed at least once a year to allow for a thorough cleaning.

WARNING

DO NOT USE BRUSH ON HOT STOVE

Removing Fly-ash from Heat Exchange Tubes

Soot and Flyash:

Formation and need for removal - The products of combustion will contain

small particles of ﬂyash. The ﬂyash will collect in the exhaust venting system and restrict the ﬂow of the ﬂue gases. Incomplete combustion, such as occurs during startup, shutdown, or incorrect operation of the room heater will lead to some soot formation which will collect in the exhaust venting system. The exhaust venting system should be inspected at least once every year to determine if cleaning is necessary.

Exhaust Passages and Vent Pipe

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 Tee cap on vertical installations will allow an inspection of the ash build-up in the exhaust Tee and will help you to decide how frequently more extensive cleaning must be performed.

Heat Exchange Tubes (close-up)

Rake Movement"

Heat Exchange Rake Handle

Tube

Scraper

Recommended Frequency of 2 days – 2 weeks

Figure 27 - Cleaning Heat Exchange Tubes

X9 4

O R Y

R E

(Recommended Frequency of 1-2 months)

Remove cover, then remove ash

Rain Cap

Check seal with paper strip or dollar bill

(Front view of stove)

Clean-Out Tee

Figure 28 - Clean Vent Components

Door Rope Gasket *

The condition of the rope gasket around the door and windows should be checked periodically and replaced or repaired if necessary. A strip of paper or a paper bill (i.e. one dollar bill) may be used to perform a test of the integrity of the door seal. Close the door on the paper in several different locations and pull. It is normal to feel only a slight amount of friction. The door gasket does not need to be “tight” in all area since a small amount of air drawn into the stove around the gasket is not hazardous or detrimental to the performance of you stove.

Window Wash *

Periodically insert a small piece of cardboard (a business card) between the window trim and the window. Slide the card back and forth a few times to clear any dust or ﬁbers from the window wash gap. Open the door and repeat from the other side of the glass.

The air wash gap should be approximately .075” to .090.”

Note:

As a minimum, check seal at points indicated below (Inside view of door)

Door Rope Gasket

Recommended Frequency of 1 year

Figure 30 - Checking Door Seal

Rear Stove Compartment

The rear stove compartment should be cleaned periodically (a minimum of once a year).

DISCONNECT ELECTRICAL CORD PRIOR TO CLEANING STOVE.

* ENSURE APPLIANCE IS COLD BEFORE PERFORMING THIS

MAINTENANCE WORK.

Recommended Frequency of 1 year

Figure 29 - Cleaning Air Wash

NOTE: DIAGRAMS & ILLUSTRATIONS ARE NOT TO SCALE

Any household dust, pet hair or sawdust should be vacuumed or wiped out of the rear compartment of the stove, room air blower, and combustion blower (paying special attention to vacuuming out the intakes of both blowers). The electrical components should be wiped clean.

To access the rear stove compartment, see following illustration and instructions for opening side panels.

Small Area Paint Touch-up

The stove body is painted with a quality high-temperature stove paint.

Use only model TSPK-B Stove Paint, Catalog # 70K99. Do not touch-up your stove with any other paint.

1. Open Hopper Lid

2. Turn small knob with ﬁngers until top of panel clears this notch.

3. Loosen bottom screw until panel clears this notch (1/4” hex head screw)

4. Swing open hinged panel.

5. Unthread damper arm and set aside.

6. Follow #2 through #4 to open right side panel.

Figure 31 - Vacuum Out Stove Compartments

Motor Lubrication

The blowers are permanently lubricated by the manufacturer. Do not apply oil to any part of the blower. Doing so may cause damage.

Blower Cleaning

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 undercoat. Then paint over a larger area in smooth even strokes to blend.

Control Board Removal Procedure

UNPLUG STOVE BEFORE FOLLOWING THIS PROCEDURE.

The electronic control board is located on the left-hand side of the stove. It is mounted to the side panel with four nuts. The control board can be removed or replaced by performing the following procedure.

Note:

The control cable is ﬁtted with a quick-disconnect plug that snaps into the back of the control board. The blower and motor wires are all part of the stove wiring harness.

1. With the stove unplugged, open the left side panel by removing the two bolts located on the top and bottom side of the panel. Pull the edge closest to the door ﬁrmly away from the stove and swing side panel open.

2. Disconnect the wiring harness from the control board.

3. Locate and remove the four nuts that secure the control board to the side panel of the stove.

4. To re-install your control panel, reverse procedures above.

Clean the air holes on the motors of both the exhaust and room air blowers annually. Remove the exhaust blower from the exhaust duct and clean out the internal fan blades as part of your fall start-up.

5. Plug the stove into your wall outlet.

(Recommended Frequency – N/A). The electronic control board is very reliable and should be one of the last components replaced when troubleshooting a stove operational problem.

NOTE: DIAGRAMS & ILLUSTRATIONS ARE NOT TO SCALE

SPECIFICATIONS - Cascade

9” (230mm)

28-3/8”

(722mm)

13-3/8”

(340mm)

23” (585mm)

6-1/8”

(155mm)

4-7/8”

(124mm)

27-1/2”

(699mm)

21-3/4”

(552mm)

20-1/4” (514mm)

Product Reference Information

Cat. No.

H6895 Cascade 175 lb. 14 cu. ft.

Model Ship. Weight Ship.

Flue Size 3” Rear

Volume

Floor Protection Front, Sides and Back = 6” (152mm) Requirements

Hopper Capacity 60 lbs.

Burn time 17-40 hours v

Fuse, Control Board 8 Amp, 250 Volt w

Heat Input (Max.) 12,600-30,000 BTU / hr

Overall Efﬁciency Up to 81%

Emissions 1.3 gr/hr, EPA Exempt

Convection Blower 102 CFM; 2.10 Amps, (Room Air Blower) 2200 RPM

Combustion Blower 56 CFM; 2.10 Amps, 2200 RPM

Auger Motor 1.25 RPM; .48 Amps

Notes:

• Dimensions shown are approximations only, +/- 1/4” (+/- 6mm)

Flue Outlet

BACK VIEW

Combustion Air Inlet

• Approved for Manufactured Home Installations.

• Optional Kits Available - Gold Door and 3” Quick Disconnect kits.

• The burn grate is designed with advanced UltraGrate™ technology.

In Canada, ﬂoor protection is required directly underneath and 2" from the

sides of the ﬂue or chimney adapter. This is recommended in the US.

Burn times, hopper capacity and BTU input may vary depending on the size

and type of fuel used.

Fuses are rated as fast acting.

NOTE: DIAGRAMS & ILLUSTRATIONS ARE NOT TO SCALE

SIDE VIEW

COMPONENT DEFINITIONS

• Air Wash

The air wash is a portion of the incoming combustion air that is split

off and routed to ﬂow across the inside of the glass door which helps the viewing area stay clean.

• Thermal Switch, Low Limit (F140-10F, N/O*) (F)

The low limit switch is mounted on the exhaust trans duct. At stove

temperatures above 140° F, this thermal switch closes contacts and allows power ﬂow to the auger motor.

• UltraGrate (Burn Grate) (G)

This is where combustion occurs.

• Auger (A)

A motor powered screw device that transfers the fuel from the hopper

to the feed chute to deliver pellets to the UltraGrate™.

• Auger Motor (B)

It drives the auger to deliver fuel to UltraGrate™. Motor speciﬁcations

are: .4 Amp, 1 rpm (revolutions per minute).

• Blower, Convection (Room Air) (C)

The blower’s function is to transfer the heat from the appliance to heat

the room air. Speciﬁcations: CFM - 66 low, 102 high; RPM – 1350 low, 2200 high; Current Draw – 2.10 Amps.

• Blower, Combustion (Exhaust) (D)

The combustion blower has a radial impeller to deliver more air to the

UltraGrate™. It pulls air into the UltraGrate by creating a negative pressure. This is done by extracting the exhaust gases out of the ﬁrebox and pushing the exhaust downstream to the ﬂue exit. Speciﬁcations: CFM - 33 low, 56 high; RPM – 1350 low, 2200 high; Current Draw

– 2.10 Amps.

• Thermal Switch, Convection High Limit (L190-20F, N/C *) (E)

The high limit switch is located on the rear of the convection jacket,

left hand side, facing appliance. If the temperature of the convection air chamber reaches 190° F., the high limit auto reset will “trip” and stop the ﬂow of electricity to the auger motor. It will not automatically reset until it has cooled below 170° F).

• Hopper (H)

The hopper is where the pellets are stored.

• Hopper Lid Switch (I)

The hopper lid switch is located behind the left hand stove panel. It

detects whether the hopper lid is open and will turn off the auger motor if the hopper lid is not properly closed. When opening the hopper when refueling, do not allow the hopper lid to remain open too long or the ﬁre may extinguish. NEVER DISCONNECT OR BYPASS THIS

SWITCH FOR ANY REASON.

• Control Board (Heat Output Switch) (J)

This is the main power switch, which controls power to the feed system

auger motor, combustion blower and convection blower. It has 3 feed rate settings, which controls the burn rate.

• Pressure Switch (K)

The pressure switch is located on the left hand side, facing appliance.

It is 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:

- The venting system is obstructed.

- High altitude or other misc. environmental conditions affecting exhaust ﬂow.

- Improper venting system.

Note: There is no availability for a thermostat connection or for an igniter.

Figure 32

NOTE: DIAGRAMS & ILLUSTRATIONS ARE NOT TO SCALE

WHITE

BLUE

BROWN

WHITE

BROWN

GREEN

BLACK

GREEN

WHITE

BLUE

UGER

OWER

(HIGH)

(

LOW)

NEUTRAL

GREEN

(

O GROUND)

RED

YEL

OW LIMIT

SWI

CH N/O

ACUUM

SWI

CH N/O

HIGH LIMIT SWI

CH N/C

OCKING

TE: SWI

CH CONDITIONS GIVEN

ROOM TEMPER

TURE; S

OVE OFF

art No

. 60020057

. A 07/2008

CASCADE WIRING DIAGRAM

HOPPER LID

SWI

BROWN

N/C

N/O

N/O – NORMALLY OPEN N/C – NORMALLY CLOSED

CASCADE® WIRING DIAGRAM

Figure 33 - WIRING DIAGRAM 120 V AC

NOTE: DIAGRAMS & ILLUSTRATIONS ARE NOT TO SCALE

TROUBLESHOOTING

QUALIFIED TECHNICIANS ONLY - UNPLUG APPLIANCE BEFORE PERFORMING ANY TROUBLESHOOTING OR MAINTENANCE

Unplug Appliance Before Performing Any Troubleshooting or Maintenance

PROBLEM CAUSE(S) SOLUTIONS

1. Fire burns with a lazy orange ﬂame. Pellets build up in the grate and the window soots up.

2. Fire goes out or stove shuts down automatically

3. Pellets will not feed. A) Stove has run out of fuel.

4. Blowers will not operate.

5. There is soot or Fly-ash in the house.

6. Stove runs for 25 minutes then shuts down.

7. Blowers will not shut off after the fuel has been switched off and the stove has cooled down.

8. Blowers will not operate when the Heat Output switch is moved from

the “OFF” position.

Insufﬁcient combustion air. A) Remove any clinkers or ash from the bottom of the grate that might be obstructing the

A) The hopper is empty B) Pellets are not feeding. C) The high limit thermal switch

has tripped.

D) There is too much combustion

air for the amount of fuel.

B) The auger motor or circuit board

may be defective. The pressure switch tap or hose may be blocked.

C) Back pressure in venting tripping

pressure switch.

D) High limit thermal switch may

have been tripped.

E) Self-aligning bearing in auger

motor may be mis-aligned. F) Hopper lid is open. G) Hopper lid switch is faulty.

There is no power to the stove. There is no power to the control board.

A) The window is being cleaned

when the stove is operating. B) There is leakage at the joints

between the combustion fan,

connection or exhaust pipe con-

nections. This will be evidenced

by dust on the impeller of the

convection fan, and in the heat

exchanger area. C) The vacuum cleaner is leak-

ing.

A) The exhaust gases are not up to

temperature. B) The low limit thermal switch is

not operating correctly. C) The wires to the low limit

thermal switch are loose or

disconnected.

The low limit thermal switch has failed in the closed position.

There is no power to the blower. Check that the stove is plugged in to the wall outlet.

primary air holes.

B) Change to a better grade of fuel if necessary (See Fuel Speciﬁcations on Page 19 and

20).

C) Check that the damper has been properly adjusted (see Damper Adjustment Guidelines on

Page 8).

D) Inspect heat exchange tubes for ash buildup and remove ash if necessary. E) Clean internal exhaust ducts. F) Check if door is sealing properly (see Door Rope Gasket on Page 23 for test procedure). G) Check for blockage in the air inlet tube or exhaust pipe. Clean as necessary. H) Close ash slide plates. I) Have your authorized Lennox Hearth Products dealer check your combustion blower.

A) Reﬁll hopper. B) See pellets will not feed on this page. C) Allow stove to cool for 1 hour and re-light. If the stove has been operating at a medium

to high burn rate and the convection (room air) blower has been turned down low then the blower should be turned up higher. If this problem persists (particularly at lower burn rates), then the high limit thermal switch should be replaced by your authorized Lennox Hearth Products dealer.

D) Adjust the damper to reduce combustion airﬂow (see Damper Adjustment Guidelines on

Page 8).

A) Reﬁll hopper. B) Check to ensure that there is no blockage in the pressure tap or hose. Have your autho-

rized Lennox Hearth Products dealer diagnose the problem and clean or replace any necessary parts.

C) If new installation check for excessive 90˚ bends, long horizontal 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. D) Allow stove to cool. E) Gently tap the auger motor. F) Close hopper lid. G) Replace hopper lid switch if determined to be faulty.

A) Check that the stove is plugged in to the wall outlet. B) Check to see if your circuit breaker has tripped. C) Check the wire connections on the high limit thermal switch and Control board.

A) Turn off stove before cleaning to prevent dispersion of ash and soot into the room. B) Seal up any leaks in the exhaust system with room temperature vulcanizing silicone

sealer (RTV). C) DO NOT use a standard household vacuum or “shop vac” as the ﬁlters will leak the ﬁne

particles of ash into the home. Clean the stove with an approved ash vacuum ONLY.

A) Re-light stove if necessary. B) Replace the low limit thermal switch. C) Check the connections between the thermal switch and the wiring harness. Make sure that

the connections between the thermal switch and harness terminals are secure.

Replace the low limit thermal switch.

Check to see whether the circuit breaker has tripped. Check the wire connections between the high limit thermal switch and the control board and blower.

REPLACEMENT PARTS LIST - CASCADE

Contact an Authorized Lennox Hearth Products dealer to obtain any of these parts. Never use substitute materials. Use of nonapproved parts can result in poor performance and safety hazards.

DOOR PARTS

Item Cat. No. Description

1 17150183 Door Assembly, Black

2 17150086 Door Handle Assembly

3 H7220 Door Hinge Blocks (2 per Pkg)

4 H7219 Door Hinge Pins (2 per Pkg)

5 17150084 Door Glass Kit (Includes clips, screws and gasket)

6 17157100 Gasket Kit, Door and Glass

--- H7714 Glass Clip Top - 17100091

--- H7715 Glass Clip Bottom - 17100013

BODY COMPONENTS

7 17150046 Ash Lip with Gold Tone Trim,

8 12151412 Knob, Ashpan (6 per Pkg)

9 17152018 Ashpan Assembly

10 17150030 Leg Set (4 per Pkg)

11 17150147 Louver Assembly, Painted

12 H7307 Panel, Back

13 17150029 Damper Rod Assembly, Black (w/ T-Handle)

14 17150164 Panel, Right Side, Painted

15 17150150 Panel, Top (Hopper lid)

16 17150163 Panel, Left Side, Painted

ELECTRICAL PARTS

17 17150027 Control Board

18 12055908 Fuse, 6 Amp, Fast Acting (12 per Pkg)

19 H7221 Hopper Lid Switch Assembly (1 per Pkg)

20 17150075 Pressure Switch (Hose, 12056003, not included)

21 12056003 Hose, Pressure Switch

22 17140110 Blower Kit, Exhaust and Room Air

23 H5886 Auger Motor

24 H3077 Power Cord

25 H7713 Wiring Harness, 32130

26 12150162 Thermal Switch, High Limit, Room Air Blower Jacket (L190-20F, Bakolite) (3 per Pkg)

27 12150080 Thermal Switch, Low Limit, Fan (F140-10F, Bakolite) (3 per Pkg)

AUGER SYSTEM COMPONENTS

28 H7070 Bushing, Oilite (2 per Pkg)

29 17150239 Auger Assembly (helix)

30 61050003 Gasket, Auger Endplate (5 per Pkg)

31 17150058 Auger End Plate Assembly (ﬂange)

32 12051001 Auger Bumper Kit (5 per Pkg)

33 12041300 Auger Collar and Screw Kit (3 per Pkg)

FIREBOX PARTS

Item Cat. No. Description

34 17150025 Firebrick Kit

35 H5802 Heat Exchange Bafﬂe

36 H4961 Ash Clean-out Cover, Right

37 H4960 Ash Clean-out Cover, Left

38 16050246 Ultragrate™, Replacement

MISCELLANEOUS PARTS

39 12055500 Grate Scraper Tool

40 17150028 Knob, Control Board (Slide) (3 per Pkg)

41 61057203 Gasket, Room Air Blower (5 per Pkg)

42 61057210 Gasket, Combustion Blower, 1/8” Lytherm (5 per Pkg)

NOTE: DIAGRAMS & ILLUSTRATIONS ARE NOT TO SCALE

REPLACEMENT PARTS DIAGRAMS

NOTE: DIAGRAMS & ILLUSTRATIONS ARE NOT TO SCALE

OPTIONAL ACCESSORIES

OPTIONAL ACCESSORIES DIAGRAMS

Optional Accessories

Item # Catalo

# Model # Description Notes

1 H0469 DKCA-G Door Kit, Cascade, Gold 2 14M80 QDPC – 3 Quick Disconnect Pipe Connector, 3” 70K99 TSPK – B Touch-up Spray Paint Kit, Black Metallic Black 12oz Spray Can

3” diameter

Item # Catalog # Model # Description

1 H0469 DKCA-G Door Kit, Cascade®, Gold

2 14M80 QDPC – 3 Quick Disconnect Pipe Connector, 3” (ref. Form # 506033-02)

2 12051504 Quick Disconnect Pipe Connector, 4” (ref. Form # 506033-02)

3 12050004 Cleaning Brush (ref. Form # 14720036)

4 70K99 TSPK – B Touch-up Spray Paint Kit, Metallic Black 12oz Spray Can

61040040 Gasket, quick Disconnect

NOTE: The form numbers referenced are the part

numbers of the instruction sheets included in kits.

(10 per Pkg)

NOTE: DIAGRAMS & ILLUSTRATIONS ARE NOT TO SCALE

SAFETY / LISTING LABEL

Note that your serial number is printed on the safety label located in the hopper.

NOTE: DIAGRAMS & ILLUSTRATIONS ARE NOT TO SCALE

WARRANTY

Your pellet stove is covered by a limited warranty (provided with appliance). Please read the warranty to be familiar with its coverage.

Retain this manual. File it with your other documents for future reference.

PRODUCT REFERENCE INFORMATION

We recommend that you record the following important information about your ﬁreplace. Please contact your Lennox Hearth Products dealer for any questions or concerns. For the number of your nearest Lennox Hearth Products dealer, please call 1-800-9-LENNOX.

REPLACEMENT PARTS

See Pages 29 through 31 for a complete replacement parts list. Use only parts supplied from the manufacturer.

Your Stove’s Model Number __________________________________________

Your Stove’s Serial Number ___________________________________________

Normally, all parts should be ordered through your Lennox Hearth Products distributor or dealer. Parts will be shipped at prevailing prices at time of order.

When ordering repair parts, always give the following information:

1. The model number of the appliance.

The serial number of the appliance.

3. The part number.

4. The description of the part.

5. The quantity required.

6. The installation date of the appliance.

If you encounter any problems or have any questions concerning the installation or application of this system, please contact your dealer.

LENNOX HEARTH PRODUCTS 1110 West Taft Avenue Orange, CA 92865 Visit us at www.Lennox.com

The Date On Which Your Stove Was Installed _____________________________

Your Dealer's Name _________________________________________________

Your Dealer's Phone Number __________________________________________

Lennox Hearth Products reserves the right to make changes at any time, without notice, in design, materials, speciﬁcations, prices and also to discontinue colors, styles and products. Consult your local distributor for ﬁreplace code information.

P/N 775,024M REV. D 05/2009

1110 West Taft Avenue • Orange, CA 92865

Lennox Cascade, Merit Cascade Installation And Operation Manual

Specifications and Main Features

Frequently Asked Questions

User Manual