Scotsman DB-101 Manuel utilisateur

SCOTSMAN

WOOD FURNACE

Model DB-101

OWNER’S MANUAL

IMPORTANT

READ OWNER’S MANUAL THOROUGHLY BEFORE

INSTALLING FURNACE OR LIGHTING FIRE.

CONSULT LOCAL AUTHORITIES IF IN DOUBT

ABOUT YOUR LOCAL FIRE SAFETY REGULATIONS.

ALL INSTALLATIONS MUST BE MADE IN

ACCORDANCE WITH LOCAL AND STATE OR

PROVINCIAL CODES WHICH MAY DIFFER FROM

THIS MANUAL.

IMPROPER INSTALLATION WILL RESULT IN

VOIDING OF WARRANTY.

SCOTSMAN WOOD FURNACE – INSTRUCTION MANUAL

Scotsman Jun-10

TABLE OF CONTENTS

Specifications 2

1.0 Operating Instructions 3

1.1 Introduction 3

1.2 Wood-Burning 3

1.3 Storage of Wood 4

1.4 Maximum Solid-Fuel Charge 5

1.5 Maintenance 5

1.5.1 Cleaning 5

1.5.2 Servicing 6

1.6 Safety 6

1.7 Controls 6

1.8 Electrical Power Failure 7

1.9 Homeowner Checklist 8

2.0 Installation Instructions 8

2.1 Introduction to Installers 8

2.2 Uncrating 9

2.3 Locating the Furnace 9

2.4.1 Combustion Air Supply 10

2.4.2 Flue Pipe & Chimney 10

2.5 Clearances 11

2.6.1 Free-Standing 13

2.6.2 Add-On 13

2.7 Duct Connection 14

2.8 Control System 16

2.9 Installers Checklist 17

Appendices

APPENDIX A – Warranty

DIAGRAMS

S101-1 Add-On to Oil – Clearances

S101-2 Add-On to Oil – “S” type duct

S101-3 Gravity Return Air Kit

S101-4 Base for use on Combustible Floor

S101-5 Controls Placement

S101-6 Add-On to Oil – Electrical Schematic Belt Drive

S101-7 Classic Oil, Add-On to Wood – Electrical Schematic with Relay

S101-8 Classic Oil, Add-On to Wood – Electrical Schematic without Relay

S101-9 Classic Air Oil, Add-On to Wood – Electrical Schematic with Relay

S101-10 Classic Air Oil, Add-On to Wood – Electrical Schematic without Relay

S101-11 Oil Furnace with EVO (9200i) Controls, Add-On to Wood

S101-12 Oil Furnace with MAX (9300i) Controls, Add-On to Wood

S101-13 Clearances Free Standing

S101-14 Cleaning

S101-15 Free Standing Wiring Diagram

S101-16 Approved Furnace Ductwork Configurations

S101-17 Prohibited Furnace Ductwork Configurations

SCOTSMAN WOOD FURNACE – INSTRUCTION MANUAL

Scotsman Jun-10

KERR SCOTSMAN Wood Furnace Model DB-101-ADD

Tested and Listed by: Energy Testing Laboratory of Maine

Certified by the Canadian Standards Association (CSA) Sept. 1981

COSP No. WCP 001 – Free-Standing

COSP No. WCP 005 – Add-On

Manufactured by: Parrsboro Metal Fabricators Ltd.

P.O. Box 637, Crossroads

12118 Highway 209

Parrsboro Nova Scotia Canada

B0M 1S0

www.KerrEnergySystems.com

SPECIFICATIONS

Length 39”

Width 29”

Height 44 1/2”

Shipping Weight 392 lb.

Fire Box 1/8”plate Length 36”

Diameter 23”

Secondary Heat Exchanger 14 gauge steel

Fire Box Door Cast Iron 13” x 13”

Warm Air Plenum 32” x 25 3/8”

Return Air Plenum N/A

Air Filter Size 16” x 20” x 1”

Blower Size G10 – 10

Blower Motor 1/3 hp

C.F.M. 1000 (Required)

Smoke Pipe 7” Inside Diameter

Floor to smoke pipe center 38 3/4”

Output (max) 140,000 Btu/h

Fuel ood 30” logs

Electrical Rating Volts 120, Cycles 60, Amps 15

NOTE – Keep this manual in a safe place for future reference. Follow manual carefully for the

correct way to install and operate this unit.

CAUTION – Do not fire this unit until operating instructions have been read and fully

understood.

INSTALL WOOD FURNACE ONLY ON A FURNACE DUCT SYSTEM

AND CHIMNEY THAT ARE IN GOOD CONDITION.

SAVE THESE INSTRUCTIONS

SCOTSMAN WOOD FURNACE – INSTRUCTION MANUAL

Scotsman Jun-10

1.0 OPERATING INSTRUCTIONS

1.1 INTRODUCTION

Congratulations on your purchase of the Kerr Scotsman wood furnace. Developed in Atlantic

Canada, this Kerr furnace has been designed to allow you to heat your home with wood, one

of North America’s most abundant fuels. Designed with you in mind, the furnace will provide

you with many years of safe, efficient central heating.

To ensure you have a clear understanding of the operating procedures of this furnace, please

take the time to read the remainder of this section on operating procedures. If you have any

questions, your Kerr dealer will be happy to answer them for you.

1.2 WOOD-BURNING

The furnace will burn most wood fuels; however it is recommended that only dry, seasoned

hardwood be used as much as possible since it affords cleaner, safer and more efficient

operation. Burning seasoned hardwood will leave less ash, soot and creosote residue and will

require fueling less often. Use smaller loads of wood on warmer days.

WARNING: DO NOT use chemicals or fluids to start the fire or during operation.

DO NOT burn driftwood or manufactured logs (compressed wood).

Before adding fuel to an existing fire turn up the thermostat for about five minutes or lift damper

chain to hold damper fully open for about one minute before opening the loading door. This

action will allow residual smoke to clear from the combustion chamber and reduce smoke

entering the basement during refueling.

Twice daily refueling may be sufficient in modern well-insulated homes. However, Kerr

recommends that small fuel loads be added morning, noon and early evening and late

evening, rather than large quantities infrequently. A small intense fire will burn more efficiently

than a large smoldering fire in the furnace and will produce less creosote.

When refueling the furnace, the remaining coals should be raked to the front of the combustion

chamber before adding any new fuel. Place the fresh supply of wood to the rear of the

combustion chamber. This gives more of an even cigar type fuel burn, rather than a large hot

fire to a slow amber fire. This will help create a more even and efficient burn. The furnace

owner should attempt to gauge fuel quantities with outdoor temperatures; a little practice will

provide greater satisfaction and efficiency.

WARNING: This furnace is not to be used with an automatic stoker.

Keep firing door tightly closed and maintain door seal in good condition.

SCOTSMAN WOOD FURNACE – INSTRUCTION MANUAL

Scotsman Jun-10

CREOSOTE

Wood combustion is never 100% complete. Wood smoke always contains some unburned

gases and a mixture of unburned tar-like liquids. A percentage of these materials will

condense out on any cool surface, leaving a dark brown or black substance with an unpleasant

acrid odor. This substance is commonly called creosote.

If these wood gases condense out on cool surfaces such as a cold chimney or a long smoke

pipe, they retain large amounts of water and will be very fluid. At higher temperatures the

condensed creosote will resemble tar (thick and tacky).

Creosote generation is highest during low heat outputs common with long smoldering burns.

Creosote generation is lowest during high heat outputs common with intense fires. It is

recommended that a small intense fire be used for best results against creosote build up even

though the wood furnace will require refueling more often.

Creosote generation is also higher when burning green wood. The moisture in the green wood

absorbs the heat from the fire, cooling the fire below the point at which the creosote can be

consumed. The low temperature smoke is then further cooled in the upper furnace chambers;

smoke pipe and chimney allowing large amounts of creosote to form.

To reduce creosote build-up during periods of low heat requirements (i.e. Spring and Fall) it is

recommended to fuel the wood furnace with smaller quantities of smaller diameter logs.

Matching fuel loads and heat requirements will result in cleaner combustion and higher

efficiency.

IN CASE A SERIOUS CREOSOTE FIRE BEGINS:

oClose the damper door by disconnecting chain.

oClose all draft regulators.

oThrow 1/2 lb. of coarse or table salt on the fire and close door immediately.

oCall the FIRE DEPARTMENT at once!

Have a firmly established Emergency Procedure in place for the handling of a flue fire.

1.3 STORAGE OF WOOD

Once cut, green wood dries (or seasons), quickly at first and then at a slower and slower rate.

When the wood has been cut to the proper length and split, it should be piled outside during

the summer months. Place two poles on the ground to serve as rails to keep the firewood off

the moist ground. Stack the wood so that both ends of the logs are exposed to the air if space

is available, since more drying occurs through the cut ends than through the sides. This is true

even with wood that has been split. The woodpile should be under cover so that it will not

absorb moisture from the rain and snow before it is used, but still open on the sides and ends

to the drying effect of the wind and sun. Store wood in neat well supported piles.

SCOTSMAN WOOD FURNACE – INSTRUCTION MANUAL

Scotsman Jun-10

1.4 MAXIMUM SOLID-FUEL CHARGE

The maximum level for a solid-fuel charge is the middle of the loading door, or the level of the

handle. DO NOT OVERFILL. The furnace will accept whole or split logs up to 34 in. (865 mm)

long, but a 30 in. (765 mm) log length is recommended for convenience and ease in handling.

Maximum damper gate opening is 11/16”. Do not tamper or adjust to greater opening in an

attempt to increase fire or over-firing and hazard may result.

1.5 MAINTENANCE

Some regular maintenance is necessary on the furnace. A good practice is to establish a

routine for the storage of fuel, care of the appliance and firing techniques.

1.5.1 CLEANING (Fig. S101-14)

The furnace must be cleaned regularly to maintain top efficiency. The furnace needs cleaning

more often when burning green wood, or during long periods of low fire. When the furnace is

first installed the heat exchanger should be checked visually from the firebox and smoke pipe

hole every week to determine the rate at which creosote or ash is accumulating within the

furnace. Cleaning should be done whenever there is more than 1/4 inch of build-up on the

heat exchanger or 3 inches of ash in the base. If the wood furnace is to be left unused for an

extended period of time (more than one month) then the appliance should be cleaned of all

ash and residual left from the burning of wood.

CLEANING PROCEDURE

oMake sure fire is completely out and the furnace has cooled.

oRemove the cleanout cover, located on the rear of the furnace heat exchanger, the

smoke pipe, and internal breech baffle.

oThe heat exchanger is now accessible for cleaning.

oUse the scraper provided to remove all soot and ash from the furnace heat exchanger

and exposed surfaces.

oScrape all residues in the top heat exchanger towards the rear of the furnace where it will

fall into the firebox.

oAlways check flue pipe for creosote or ash build-up in the pipe and clean if necessary.

oReinstall cleanout cover, internal breech baffle (See section 2.4.2) and smoke pipe

making sure that all joints are secured with at least 3 sheet metal screws.

oCheck chimney cleanout for ash build-up and remove any accumulation.

oResidue may be removed from the firebox or left to be burnt during the next fire. It is

good practice to leave a layer of ash approximately one inch deep in the base of the

firebox.

SCOTSMAN WOOD FURNACE – INSTRUCTION MANUAL

Scotsman Jun-10

DISPOSAL OF ASHES

Ashes should be placed in a metal container with a tight fitting lid. The closed container of

ashes should be placed on a non-combustible floor or on the ground, well away from all

combustible materials, pending final disposal. If the ashes are disposed of by burial in soil or

otherwise locally dispersed, they should be retained in the closed container until all cinders

have thoroughly cooled. IMPORTANT – No other waste shall be placed in this container.

WARNING – Ashes usually contain live dormant coals, which may burn for many hours after a

recognizable flame has disappeared. Use extreme caution when handling and disposing

ashes.

1.5.2 SERVICING

The furnace air filter must be checked monthly and replaced each year. Annually lubricate the

blower motor, if it is not permanently lubricated, with 4-6 drops of SAE-30 oil in each bearing.

CAUTION: Failure to keep air filter clean will result in poor furnace performance and possible

damage to heat exchanger.

1.6 SAFETY

If the furnace overheats due to improper operation the following precautions should be taken:

DO NOT shut off power. The blower must be kept running to disperse excessive heat.

Manually close the damper door by unhooking the chain. Check controls for proper operation

before starting a new fire.

WARNING – The maximum opening of the combustion air damper is preset at the factory. DO

NOT adjust the stop or attempt to increase the combustion air by any means.

1.7 CONTROLS

Thermostat

The primary control is the room thermostat located near the center of the house on the main

floor or near an existing thermostat. The thermostat operates the damper motor to open and

close the damper door thus allowing more or less air into the combustion area to control the

fire.

Fan and Limit

The fan and limit control mounted in the plenum controls the operation of the circulating blower

and prevents the furnace from over-heating. When the air temperature in the plenum reaches

the “ON” set point of the fan switch, usually 140°F (60°C), the blower starts and runs until the

plenum cools to the “OFF” set point, usually 100°F (38°C), when the blower is switched off.

The limit function in this control is usually set at 280°F (138°C) and will override the room

thermostat to close the damper door if the furnace overheats, and will also prevent the oil

furnace from starting.

SCOTSMAN WOOD FURNACE – INSTRUCTION MANUAL

Scotsman Jun-10

1.8 ELECTRICAL POWER FAILURE (Fig. S101-3)

If no one is home during a power failure, the damper will automatically close and some gravity

heating will take place. Combustion air will continue to enter through the secondary air holes

and a fire should be maintained.

IMPORTANT – This furnace is CSA certified for operation under Power Failure only if optional

gravity air inlet kit is installed.

For optimum heating during a power failure follow the procedure listed below:

For Power Failure operation remove the power failure gravity air inlet cover before starting or

refueling during power failure. The cover is an option available from your Kerr dealer. The kit

must be installed on the cabinet side directly opposite to the entry of the blower or oil furnace

“S” connection ductwork.

Manually open the blower compartment access door of wood or connected oil furnace to allow

gravity flowing air to all areas (check with your installer).

Place a coin under the damper flap in such a way that it will fall clear when power is restored.

Maintain a careful watch on the furnace temperature. If it should exceed 200°F (95°C) close

the damper door.

Do not leave the furnace unattended in this position.

Refuel frequently with small loads to maintain a small fire at 1/2 normal maximum volume.

Do not expect to maintain maximum comfort under no power conditions.

Do not allow anyone who is unfamiliar with the operation of the furnace to attend it during a

power failure.

SCOTSMAN WOOD FURNACE – INSTRUCTION MANUAL

Scotsman Jun-10

1.9 HOMEOWNER CHECKLIST

oKeep area around unit clean and clear of combustibles.

oUse only dry wood. DO NOT burn garbage, gasoline or naphtha.

oLoad carefully.

oRemove ashes as directed.

oWatch for soot build up in smoke pipe – clean regularly.

oClean furnace heat exchanger regularly.

oBe aware of danger due to over firing unit.

oDo not load above maximum loading level (middle of loading door) or overheating may

result.

oThis unit is NOT suitable for automatic stoking.

oLoad carefully. Do not slam fuel against rear or sides of firebox. This may damage the

firebox.

oAlways observe the following minimum clearances to combustible materials – Front 48”

(1220 mm); one side 6” (152 mm); opposite side and rear 24” (610 mm); and flue pipe 18”

(465 mm).

oDo not store solid fuel within the above clearances or within the space required for

charging and ash removal.

oEstablish a routine for storage of fuel, care of the appliance, and firing techniques.

2.0 INSTALLATION INSTRUCTIONS

2.1 INTRODUCTION TO INSTALLERS

Before installing this furnace, please read the following instruction manual carefully. This unit

is designed to be a freestanding or add-on central heating furnace to provide complete central

heating in medium sized well-insulated homes. Before installing be sure unit is properly sized

for the intended application. Warranty does not cover misapplication of unit.

Applicable Standards

The furnace must be installed in accordance with the requirements of the National Fire

Protection Association codes, the Canadian Heating, Ventilation and Air Conditioning Code,

The National Board of Fire Underwriters, and the CSA Standards for solid fuel burning

equipment as outlined in B365-01. In all cases consult your local authorities and fire insurance

company for specific regulations.

SCOTSMAN WOOD FURNACE – INSTRUCTION MANUAL

Scotsman Jun-10

2.2 UNCRATING

When you receive your furnace, check it carefully to ensure that all components are present

and in good condition. If there has been any damage or loss in transportation, please notify

the carrier and retailer at once. Inspect for the following:

oFirebox/Heat exchanger

oPoker/coals rake

oMarking template (return air and power failure bypass inlet)

oInternal Breech Baffle (Scotsman only)

oFor free-standing model optional equipment required:

a) BC-10 Blower Kit (Scotsman only)

b) Control Kit “B” (Scotsman only)

CONTROL KIT A (Oil add-on), B(free-standing with BC–10 blower) or E(Electric add-on)

selected according to installation, which includes:

oL4064R Fan and Limit Control

oControl Mounting Plate

oDamper Motor

oThermostat (T822D or equivalent)

oWiring Harness and Parts

oSwitching Relay R8405C (8A05A – 4) – Kit “A” & “E” only

oTransformer – Kit “B” only

NOTE - Some parts may be packed inside furnace firebox. Check shipment carefully before

assuming shortage.

2.3 LOCATING THE FURNACE (Fig. S101-1, Fig. S101-4)

The location of the furnace must be as close as possible to the tile-lined brick chimney, or

factory-built solid-fuel approved chimney (ULC S629). Keep in mind also the day-to-day

operation, and place for ease of fueling and cleaning. Kerr recommends installation if

possible, in a central location in relation to the outlet registers and the use of large warm air

ducts to improve heat distribution during a power failure.

It is important to provide adequate combustion air to the furnace. It may be necessary to add a

ventilator to an exterior wall of a closed furnace room or an airtight basement.

The furnace must be installed so that the clearances as shown in Fig. S101-1 or those of local

authorities are met. If the furnace must be installed on a combustible floor, a non-combustible

base must be built as shown in Fig. S101-4. Two layers of hollow masonry block (4” thick) are

placed at right angles to each other so that the ventilation holes of one layer are opposite to

those of the other layer. Also there must be a minimum of one layer of fireproof board and one

layer of 26 gauge galvanized metal beneath the masonry blocks. This base must extend

beyond the furnace to a minimum distance of 18 in (457 mm) in front and 8 in. (204 mm) on all

sides.

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