United States Stove 22AF Owner`s manual

Model 22AF
OWNER'S MANUAL
SOLID FUEL
WARM AIR FURNACE
*FOR INSTALLATION AS A CENTRAL FURNACE
*CERTIFIED UNDER ANSI/UL 391 & CAN/CSA-B366.1-M91
Keeping North America W
arm Since 1869
Warm
STATES STO
TED
V
NI
USSC
COMPANY
IMPROPER INSTALLATION MAY VOID
YOUR WARRANTY
DO NOT USE THIS FURNACE
IN A MOBILE HOME OR TRAILER
UNITED STATES STOVE COMPANY
227 Industrial Park Road
P.O.Box 151
South Pittsburg, TN 37380
(423) 837-2100
E
U
CAUTION:
READ ALL INSTRUCTIONS CAREFULLY BEFORE STARTING THE
INSTALLATION OR OPERATING
THE FURNACE
•DRAWINGS FOR ILLUSTRATION PURPOSES ONLY•
C
R
US
851533A
1
CONGRATULATIONS!
You've purchased one of America's Finest Wood and Coal Burning Furnaces.
By heating with wood and coal you're helping to CONSERVE AMERICA'S
ENERGY! Wood is our Renewable Energy Resource. Please do your part to
preserve our wood supply. Plant at least one tree each year. Future generations
will thank you.
NOTE: YOUR UNIT MUST BE INSTALLED BY A QUALIFIED
FURNACE INSTALLER. IMPROPER INSTALLATION COULD
VOID YOUR WARRANTY!
TOOLS AND MATERIALS NEEDED
TOOLS
MATERIALS
Pencil
6 Foot Folding Rule or Tape
Tin Snips
Drill, Hand or Electric
Drill Bit (For Sheet Metal Screws) 1/8" Dia.
Screw Driver (Blade-Type)
Gloves
Sabre Saw
5/16" Nut Driver or
5/16" Socket with Rachet
2
6" Pipe, 6" Elbow, Collar and Thimble; as required
(24 gauge min.)
1/2" Sheet Metal Screws
6" Inside Diameter Listed Residential Type or
Building Heating Appliance Chimney or Existing
Masonry Chimney (SEE Page 8).
Electrical Wiring
6" Draft Regulator
1/2" Conduit
(Conduit Connectors)
Furnace Cement (Manufacturer Recommends:
Rutland Black - Code 78 or Equivalent)
Plenum and Duct Work as Required
•DRAWINGS FOR ILLUSTRATION PURPOSES ONLY•
CAUTION
Your Furnace has the following labels. Read and obey all labels.
DANGER: RISK OF FIRE OR EXPLOSION.
DO NOT burn garbage, gasoline, drain oil, or other flammable liquids.
WARNING: FIRE HAZARD.
DO NOT operate with fire draft exceeding .06 inches W.C.
DO NOT operate with fuel loading or ash removal doors open.
DO NOT store fuel or other combustible material within the marked installation clearances.
DO NOT store fuels, paints, thinners, flammable liquids, or other highly volatile substances
in the furnace room.
CAUTION: HOT SURFACES
Keep children away.
Do not touch during operation.
WARM-AIR SUPPLY-DUCT SYSTEM MUST BE CONSTRUCTED ONLY OF METAL
CAUTION!
INSPECT FLUE PIPES, FLUE PIPE JOINTS AND FLUE PIPE SEALS
REGULARLY TO ENSURE THAT SMOKE AND FLUE GASES ARE NOT
DRAWN INTO, AND CIRCULATED BY, THE AIR CIRCULATION SYSTEM.
CAUTION!
CLEANOUT OF THE HEAT EXCHANGER, FLUE PIPE, CHIMNEY, AND
DRAFT INDUCER IF USED, IS ESPECIALLY IMPORTANT AT THE END
OF THE HEATING SEASON TO MINIMIZE CORROSION DURING THE
SUMMER MONTHS, CAUSED BY ACCUMULATED ASH.
SAFETY
NOTICE:
If this heater is not properly installed, a house
fire may result. For your safety, follow the installation directions. Contact local building or fire
officials about restrictions and installation inspection requirements in your area.
REFER TO MARKINGS ON THE APPLIANCE FOR ADDITIONAL INFORMATION.
•DRAWINGS FOR ILLUSTRATION PURPOSES ONLY•
3
RULES FOR SAFE INSTALLATION AND OPERATION
Read these rules and the instructions carefully. Failure to follow them will cause a hazard that could result in
death, serious bodily injury, and/or property damage.
Check your local codes. This installation must comply with their rulings.
1.
2.
Do not install this furnace in a mobile home or trailer.
3.
Always connect this furnace to a chimney and vent to the outside. Never vent to another room or inside
a building.
4.
Do not connect this furnace to an aluminum Type B gas vent. This is not safe and is prohibited by the
National Fire Protection Association Code. This furnace requires a masonry or listed factory built
chimney for residential type or building heating appliance chimney. Use a 6" diameter chimney or
larger, that is high enough to give a good draft. (See Page 8)
5.
Be sure that if a masonry chimney is used, it is safely constructed and in good repair. Have the
chimney inspected by the Fire Department or an inspector.
6.
Inspect chimney connector and chimney before and frequently during the heating season for any
deposit of creosote or soot which must be removed (see Chimney Maintenance, page 18.)
7.
Provide air for combustion into the room where the furnace is located. If the intake is not in the same
room, air must have free access to the room.
8.
CAST IRON PARTS MUST BE "SEASONED" TO AVOID CRACKING. BUILD ONLY SMALL FIRES
ON FIRST USE.
9.
To prevent injury, do not allow anyone to use this furnace who is unfamiliar with the correct operation of
the furnace.
10.
11.
For further information on using your furnace safely, obtain a copy of the National Fire Protection
Association (NFPA) publication "Chimney's, Fireplaces and Solid Fuel Burning Appliances" NFPA 211.
The address of the NFPA is Batterymarch Park, Quincy, MA 02269. For more information on Canadian
installation , obtain a copy of CAN/CSA-B366-M91 Installation Code for Solid Fuel Burning Appliances
and Equipment.
12.
Keep the ashpit section free of excess ashes. Do not allow ashes to stack higher than the sides of the
ash pan.
13.
DISPOSAL OF ASHES - Place ashes in a metal container with a tight fitting lid. Keep the closed
container on a noncombustible floor or on the ground, well away from all combustible materials. Keep
the ashes in the closed container until all cinders have thoroughly cooled. The ashes may be buried in
the ground or picked up by a refuse collector.
CAUTION - The special paints used on your furnace may give off some smoke while they are curing
during the first few fires. Build small fires at first. The metal used in construction of the furnace and
duct work has a light coating of oil. This could give off smoke and/or odors from registers when furnace
is used for the first time. This should disappear after a short period of time. Once this burn-off has
occurred, it should not reoccur.
4
•DRAWINGS FOR ILLUSTRATION PURPOSES ONLY•
RULES FOR SAFE INSTALLATION AND OPERATION
14.
CARING FOR PAINTED PARTS - This furnace has a painted outside jacket, which is durable but it
will not stand rough handling or abuse. When installing you furnace, use care in handling. Clean with
soap and warm water when furnace is not hot. DO NOT use any acids or scouring soap, as these
wear and dull the finish. DISCOLORATION WILL OCCUR IF THE FURNACE IS OVERFIRED.
FOLLOW OPERATING INSTRUCTIONS CAREFULLY.
15.
Keep the feed and ash doors closed at all times except while tending the furnace.
Your Furnace is designed to be installed in a parallel air flow arrangement with a gas or oil-fired
forced air upflow-type central furnace, or it may be installed as a central furnace.
HOW THE FURNACE FUNCTIONS
Your Ashley Furnace is designed to be a
supplemental or central heating source for your
home. This solid fuel furnace may be installed in
conjunction with a properly operating central furnace that is listed or certified in accordance with
nationally recognized safety standards and
equipped with the required controls and other
safety features and which has been installed with
appropriate standards of National Fire Protection
Association with installation clearances specified
in the furnace nameplate marking. The installation
must be accomplished by a qualified agency (one
who is engaged in, and is responsible for, or is
thoroughly familiar with the installation and operation of the gas, oil, and solid fuel burning heating
appliances, who is experienced in such work,
familiar with all precautions required, and has
complied with all the requirements of the authority
having jurisdiction.) The installation shall be in
strict accordance with the manufacturer's installation instructions furnished with the solid fuel furnace.
The chimney connector of the furnace is to be
installed to provide clearances to combustible
material not less than specified in the individual
classifications and marked on the furnace. The
chimney connector must be connected to a chimney suitable for use with residential type or building
heating appliances which burn solid fuel.
The furnace is designed to operate in either
parallel or series air flow arrangement with the
central furnace or as a central furnace.
CENTRAL FURNACE INSTALLATION: As a central furnace, the unit functions independently of
any other system. The blower will come on when
the plenum temperature reaches the setting on the
blower control.
PARALLEL INSTALLATION: The design is such
that when the blower comes on, the blower on the
central system also comes on.
The blower will only come on when the
temperature in the plenum has reached the setting
on the blower control. This is to insure that there is
sufficient warm air in the system to make it
efficient for the unit to operate. When the central
system thermostat calls for heat, the central system will operate by the burner igniting and the
blower coming on. It is possible that both systems
will operate simultaneously. It is recommended
that for the most efficient use of your Ashley
Furnace, that it be fired as much as possible in
order to reduce the demand on your existing central
heating system. This unit has an Optional forced
draft kit that operates from a wall thermostat.
When the temperature falls below the setting on the
wall thermostat, the forced draft will come on. (U.S.
Stove Option 11 DIK)
The warm air supply outlet of the Ashley
furnace shall not be connected to the cold air return
inlet of the central furnace because the possibility
exists of components of the central furnace overheating and causing the central furnace to operate
other than is intended.
SERIES INSTALLATION: (U.S. & CANADA)
This type of installation uses only the blowers of
the existing central furnace. The solid fuel fan/limit
control must also control the functions of the
existing furnace. All electrical power must come
from a single branch circuit.
•DRAWINGS FOR ILLUSTRATION PURPOSES ONLY•
5
MODEL 22AF DIMENSIONS
FIG. 1
6
•DRAWINGS FOR ILLUSTRATION PURPOSES ONLY•
LOCATING THE FURNACE
1. The furnace should be located in the same room
as the central system and as close as possible,
but no closer than 9". There should be no wall
between the furnace and the warm air outlet duct
that is connected directly to the warm air outlet
plenum of the central furnace. See Fig. 2.
The unit will require installation with the
2. following clearances:
Unit to sidewall ........... 12" (305 mm)
Unit to backwall ......... 30" (760 mm)
Chimney connector pipe to sidewall
.................................. 18" (530 mm)
Chimney connector pipe to backwall
.................................. 18" (460 mm)
Hot air ducts to combustibles
.................................. 2" (50 mm)
FIG. 2
NOTE: Install only on a noncombustible
floor. (REFER TO FIG. 2 & 3)
3. Place the furnace on a noncombustible floor.
4. Check figures 2 and 3. Be sure you have the
clearances shown from the furnace and the
connector pipe to combustible surfaces. If you
have a solid brick or stone wall behind your
heater, you can place the furnace as close as
you wish to the wall. If the wall is only faced with
brick or stone, treat it as a combustible wall.
FIG. 3
•DRAWINGS FOR ILLUSTRATION PURPOSES ONLY•
7
CHIMNEY CONNECTION
FIG. 4
MASONRY CHIMNEY
Before using an existing masonry chimney, clean the chimney and inspect the flue liner to be sure it is safe to use.
Make repairs before attaching the furnace. See Page 4, item 5. Look at Fig. 4. The connector pipe and fittings
you will need to connect directly to a masonry chimney are shown.
The chimney connection should be as short as possible. If the connector pipe must go through a combustible wall
before entering the masonry chimney, consult a qualified mason or chimney dealer. The installation must conform
to local fire codes, and N.F.P.A. 211.
DO NOT CONNECT THIS FURNACE TO A CHIMNEY FLUE SERVING ANOTHER APPLIANCE.
The chimney used for a furnace must not be used to ventilate the cellar or basement. If there is a cleanout opening
at the base of the chimney, close it tightly.
FIG. 5
LISTED FACTORY BUILT CHIMNEY
Carefully follow chimney manufacturer's instructions. Use only a Listed Residential Type or Building Heating
Appliance Chimney. If your chimney starts at the ceiling (Fig. 5), you will need enough 6" pipe to reach the ceiling.
The top of the chimney must be at least 3 feet above the roof and be at least 2 feet higher than any point of the
roof within 10 feet (Fig. 5).
8
•DRAWINGS FOR ILLUSTRATION PURPOSES ONLY•
RULES FOR CONNECTOR PIPE INSTALLATION
1. The crimped end of the chimney connector
fits inside the furnace flue collar. Install
additional chimney connector and elbow
with the CRIMPED END TOWARD THE
FURNACE. This will allow any condensation in the flue to run back into the furnace.
Use 6" dia. (minimum 24 gauge) black
chimney connector.
2. Slope any horizontal pipe upward toward the
chimney at least 1/4 inch for each foot of
horizontal run.
3. You must have at least 18 inches of
clearance between any horizontal piping
and the ceiling. (See Fig. 3)
4. The chimney connector must not extend
into the chimney flue (See Fig. 6).
5. Seal each chimney connector pipe joint with
furnace cement. Also seal the pipe at the
chimney.
6. Use 3 sheet metal screws at each chimney
pipe joint to make the piping rigid.
7. The chimney connector may include a section for a barometric draft regulator between
the furnace and the chimney (Fig. 4, 5, 6, &
7). The barometric draft regulator must be
installed in the same room (same pressure
zone) as the furnace.
8. Install the barometric draft regulator strictly
in accordance with the instructions that are
provided with the barometric draft regulator.
A solid damper can be placed between the
9. barometric draft regulator and the chimney.
(Fig. 4, 5, 6, & 7)
FIG. 6
Adjusting the
Barometric Draft Regulator
1. Drill a hole in the chimney connector within
18" of the flue collar below the barometric
draft regulator just large enough for the
tube of the manometer.
2. Build a fire after all chimney connections
have been made.
3. Use a manometer to measure the draft in
the flue. (U.S. Stove Model DG-26)
4. Adjust the barometric draft regulator to
obtain a draft of 0.05" - 0.06" W.C. under
stable conditions.
•DRAWINGS FOR ILLUSTRATION PURPOSES ONLY•
FIG. 7
9
CONNECTION OF CHIMNEY CONNECTOR TO A MASONRY CHIMNEY
THROUGH A COMBUSTIBLE WALL
Figure 8 shows how to connect the chimney connector of a heater to a masonry chimney through a combustible wall.
There are five allowable ways that a chimney connector can be connected to a masonry chimney by passing
through a combustible wall. NFPA Standard 211 allows the following wall pass-through systems.
CHIMNEY FLUE
FIGURE 8 CONNECTION OF CHIMNEY CONNECTOR TO A MASONRY CHIMNEY THROUGH A COMBUSTIBLE WALL
CEILING
SEE PARTS A, B, C,
D, AND E OF THIS
FIGURE FOR
OPTIONS.
CHIMNEY CONNECTOR
MASONRY CHIMNEY
CONSTRUCTED TO
NFPA 211
TO
HEATER
COMBUSTIBLE WALL
FLOOR
PROTECTOR
AIRTIGHT
CLEANOUT
DOOR
(FIGURE 8 CONTINUED ON NEXT PAGE)
10
•DRAWINGS FOR ILLUSTRATION PURPOSES ONLY•
PART A, FIGURE 8
(FIGURE 8 CONTINUED ON NEXT PAGE)
CHIMNEY FLUE
MINIMUM 12 IN.
TO COMBUSTIBLES
MINIMUM CHIMNEY CLEARANCE TO BRICK
AND COMBUSTIBLES IS 2 IN.
MASONRY CHIMNEY
CONSTRUCTED TO
NFPA 211
MINIMUM CLEARANCES 12
IN. OF BRICK ALL AROUND
CHIMNEY CONNECTOR
TO HEATER
FIRE CLAY LINER
(5/8" MIN. WALL THICKNESS)
MIN. 3-1/2" THICK BRICK
MASONRY WALL
1. Use a minimum 3-1/2" thick brick masonry wall framed into the combustible wall. A fireclay liner (ASTM C315 or
equivalent) having a 5/8" minimum wall thickness must be used and it must be at least 12" away from any material that
could catch fire. The inside diameter of the fireclay liner shall be sized for the proper snug fit of a 6" diameter chimney
connector pipe. The fireclay liner shall run from the outer surface of the brick wall to, but not beyond, the inner surface
of the chimney flue and shall be firmly cemented in place. See Part A of Figure 8.
2. Use a solid insulated listed factory-built chimney length having an inside diameter of 6" and having 1" or more of solid
insulation. There must be at least a 9" air space between the outer wall of the chimney length and any combustible
materials. The inner end of the chimney length shall be flush with the inside of the masonry chimney flue shall be
sealed to the flue and to the brick masonry penetration with nonwater-soluble refractory cement. Sheet steel supports
which are at least 24 gauge(0.024") in thickness shall be securely fastened to wall surfaces on all sides. Fasteners
between supports and the chimney length shall not penetrate the chimney liner.See Part B of Figure 8.
3. Use a 10" diameter ventilated thimble made of at least 24 gauge(0.024") steel having two 1" air channels. The
ventilated thimble must be separated from combustible materials by a minimum of 6" glass fiber insulation. The
opening in the combustible wall shall be covered and the thimble supported with sheet steel supports which are at least
24 gauge (0.024") in thickness. The sheet steel supports shall be securely fastened to wall surfaces on all sides and
shall be sized to fit and hold the chimney section. Fasteners used to secure chimney sections shall not penetrate
chimney flue liner. See Part C of Figure 8.
4. Use an 8" inside diameter solid insulated listed factory-built chimney length which has 1" or more of solid insulation.
The minimum length of this chimney section shall be 12" and will serve as a pass-through for the 6" diameter chimney
connector. There must be at least a 12" air space between the outer wall of the chimney section and any combustible
materials. The chimney section shall be concentric with and spaced 1" away from the chimney connector by means
of sheet steel support plates on both ends of the chimney section. The opening in the combustible wall shall be
covered and the chimney section supported on both sides with sheet steel supports which are at least 24 gauge
(0.024") in thickness. The sheet steel supports shall be securely fastened to wall surfaces on all sides and shall be
sized to fit and hold the chimney section. Fasteners used to secure chimney sections shall not penetrate chimney flue
liner. See Part C of Figure 8.
5. A listed factory-built wall pass-through system may be purchased and installed according to the instructions packaged
with it to provide a safe method of passing the chimney connector through a combustible wall for connection to a
masonry chimney.
Additional requirements pertaining to Figure 8 and the above wall pass-through systems:
1. Insulation material used as part of wall pass-through system shall be of noncombustible material and shall have a
thermal conductivity of 1.0 Btu • in./ft.² • °F (4.88 kg • cal/hr • m² • °C) or less.
2. All clearances and thicknesses are minimums: larger clearances and thickness are acceptable.
3. A chimney thimble, as shown for 3" and 4" above (Parts C and D respectively of Figure 8) shall be for types "3" and 4"
connections to facilitate removal of the chimney connector for cleaning. The chimney thimble shall be of ASTM C315
fireclay with 5/8" minimum wall thickness , or material or equivalent durability. The inside diameter of the thimble shall
be sized for the proper snug fit of a 6" diameter chimney connector pipe. The thimble shall be installed without
damage to the chimney flue. The thimble shall extend through the chimney wall to, but not beyond, the inner surface
of the chimney flue and shall be permanently cemented in place with high temperature cement.
4. A chimney connector to a masonry chimney, except for 2" above (Part B of Figure 8), shall extend through the wall
pass through system to the inner face of the chimney flue, but not beyond. It does not have to be fastened in place so
long as it cannot accidently be pulled out of the chimney or shoved into the chimney flue. If fasteners are used to
secure the chimney connector to a masonry chimney, the fasteners shall not penetrate the chimney flue liner.
5. Any material used to close up any opening for the connector shall be noncombustible.
•DRAWINGS FOR ILLUSTRATION PURPOSES ONLY•
11
NONSOLUBLE
REFACTORY
CEMENT
AIR SPACE
FACTORY-BUILT
CHIMNEY LENGTH
CHIMNEY FLUE
MINIMUM CHIMNEY CLEARANCES FROM MASONRY TO
SHEET STEEL SUPPORTS AND COMBUSTIBLES 2 IN.
PART B
FIGURE 8 (FIGURE 8 CONTINUED)
CHIMNEY LENGTH
FLUSH WITH INSIDE
OF FLUE
AIR SPACE
9 IN. MINIMUM
MINIMUM CLEARANCE
9 IN. ALL AROUND
CHIMNEY CONNECTOR
TO HEATER
USE CHIMNEY MFRS. PARTS TO
ATTACH CONNECTOR SECURELY
SOLID INSULATED, LISTED
FACTORY-BUILT CHIMNEY LENGTH
MASONRY CHIMNEY CONSTRUCTED
TO NFPA 211
PART C
FIGURE 8
SHEET STEEL SUPPORTS
(24 GAUGE MIN. THICKNESS)
MINIMUM CHIMNEY CLEARANCES FROM MASONRY TO
SHEET STEEL SUPPORTS AND COMBUSTIBLES 2 IN.
24 GAUGE
VENTILATED THIMBLE WITH
TWO 1 INCH AIR CHANNELS
CHIMNEY FLUE
CHIMNEY THIMBLE
TWO VENTILATED AIR
CHANNELS EACH 1 INCH.
CONSTRUCTED OF
SHEET STEEL.
MASONRY CHIMNEY CONSTRUCTED
TO NFPA 211
CHIMNEY CONNECTOR
TO HEATER
MINIMUM 6 IN. GLASS
FIBER INSULATION ALL AROUND
SHEET STEEL SUPPORTS
(24 GAUGE MIN. THICKNESS)
MINIMUM CHIMNEY CLEARANCES FROM MASONRY TO
SHEET STEEL SUPPORTS AND COMBUSTIBLES 2 IN.
PART D
FIGURE 8
SHEET STEEL SUPPORTS
MINIMUM CLEARANCE
2 IN. ALL AROUND
CHIMNEY SECTION
1 IN. AIR SPACE TO
CHIMNEY LENGTH
CHIMNEY
CONNECTOR
AIR SPACE
2 IN.
CHIMNEY FLUE
CHIMNEY THIMBLE
MASONRY CHIMNEY CONSTRUCTED
TO NFPA 211
CHIMNEY CONNECTOR
TO HEATER
SOLID INSULATED, LISTED
FACTORY-BUILT CHIMNEY
LENGTH (12 IN. LONG MIN.)
SHEET STEEL SUPPORTS
(24 GAUGE MIN. THICKNESS)
PART E - (Figure 8)
In addition to the methods shown by A, B, C, and D of Figure 8, a listed factory-built wall pass-through system
may be purchased and installed according to the instructions packaged with it to provide a safe method of
passing chimney connector through a combustible wall for a connection to a masonry chimney.
CONNECTION OF CHIMNEY CONNECTOR TO A MASONRY CHIMNEY WHEN CHIMNEY CONNECTOR
DOES NOT PASS THROUGH A COMBUSTIBLE WALL
If the chimney connector does not have to pass through a combustible wall to get to a masonry chimney, simply
connect the chimney connector directly to the masonry chimney's chimney thimble as described and shown by parts
C and D of Figure 8. Remember, the chimney connector should extend into the chimney thimble to the innerface of the
chimney flue but not beyond; if the chimney connector is extended through the chimney thimble into the chimney flue,
resistance to the flow of smoke and gases up the chimney will occur; that flow resistance will have an adverse affect
on the operation and performance of the heater and venting system.
•DRAWINGS FOR ILLUSTRATION PURPOSES ONLY•
12
BLOWER & COMPONENT ASSEMBLY - FIG. 9
1.
Attach the Fan Limit Control Bracket to the rear of the furnace with four(4) of the #10 x 1/2 Tek screws provided
in the parts bag.
2.
Install the Honeywell Limit Control (1) to the bracket with two(2) of the #10 x 1/2 Tek screws provided in the parts
bag.
3.
Attach the Junction Box(2) to the Junction Box Bracket using two(2) #10 x 1/2 Tek screws. Then Mount the
bracket to the rear of the furnace with four(4) #10 x 1/2 Tek screws. Also Attach the Conduit from the Limit
Control to the Junction Box.
4.
Install the five(5) Clip Nuts to the back of the furnace. Install the Blower(3) and Blower Gasket(4) to the furnace
using the 1/4-20 x 3/4 bolts provided in the parts bag. Attach the remaining piece of Conduit from the junction
box to the Blower. Use the Wiring Diagram on the following page to wire the assembly.
5.
Reattach the junction box cover.
LIMIT CONTROL
MOUNTING
BRACKET
1
JUNCTION BOX
MOUNTING
BRACKET
CONDUIT
2
CONDUIT
CLIP NUTS
3
4
•DRAWINGS FOR ILLUSTRATION PURPOSES ONLY•
13
MODEL 22AF WIRING DIAGRAM - FIG. 11
LOAD
FAN
LINE
LOAD
LIMIT
BREAK OFF
JUMPER FOR LINE
LOW VOLTAGE
FAN "OFF"
INDICATOR
(100)
LIMIT
INDICATOR
(200)
FAN "ON"
INDICATOR
(150)
Honeywell
LIMIT SWITCH
R2
R1
WIRE NUTS
GROUND
G
G
B
B
110
VAC,
60
HZ.
WIRE COLOR CODE
G - GREEN - GROUND
B
- BLACK
- POWER
WIRE
COLOR
CODE SUPPLY
W
WHITE -GROUND
POWER SUPPLY
G--GREENR1
- WHITEPOWER
- FAN CONTROL
B- BLACKSUPPLY
W- -WHITESUPPLY
R2
BLACKPOWER
- FAN CONTROL
R1--WHITECONTROL
M1
BLACK FAN
- BLOWER
MOTOR
R2--BLACKCONTROL
M2
BLACK -FAN
BLOWER
MOTOR
M1- BLACK- BLOWER MOTOR
M2- WHITE- BLOWER MOTOR
W
W
M2
ELECTRICAL JUNCTION BOX
M1
BLOWER
MOTOR
Fig. 10
Fig. 11
IMPORTANT: POWER SUPPLY WIRING MUST NOT BE LESS THAN 90 CENTIGRADE.
14
•DRAWINGS FOR ILLUSTRATION PURPOSES ONLY•
INSTALLATION
Please see all methods of Installation in Appendix at the rear of this booklet.
This is a furnace, not a free standing stove. You must
direct heated air from 12" outlet away from the furnace,
or it will not function properly.
1. This installation must be done by a qualified
heating equipment installer.
2. The installation is to be done in compliance with
National Fire Protection Association installation
standards: No. 89M, 90B, 211, 70 (National Electric
Code) and Uniform Mechanical Code 913, 6-4, in the
states where applicable. (Their code offers connecting
smoke pipe connectors into chimney with other fuel
burning appliances.)
3. Rooms large in comparison with size of the
appliances:
a) A Wood Burning Furnace needs air for combustion and circulation to house.
b) Provision must be made to make up this air and
not starve gas or oil furnace of combustion air.
c) Have "Authority Having Jurisdiction"
determine that air is of adequate makeup. (Reference
N.F.P.A. Nos. 30 & 54, Code for Installation of Gas & Oil
Equipment)
4. Have "Authority Having Jurisdiction" to inspect all
chimneys and installations for adequate venting and for
compliance with standard and local codes and regulations regarding installation of wood burning appliances.
5. Installation of Supplemental Heat Application to
Existing Central System. (See Fig. 12 for typical installation.)
a) Place Wood Burning Furnace so that the
chimney connector will be as short as possible and
avoiding unnecessary sharp turns in the smoke pipe
connector and the installation of devices that would
create excessive resistance to the flow of flue gases.
b) Locate the Wood Burning Furnace as close as
practical to the existing central hot air heating system,
maintaining clearances as stated on the label located on
the side of the furnace.
c) Clearances from combustible materials must
be complied with as stated on the label below the fuel
door:
Unit to Combustible:
Front: 48"
Back: 30"
Sides: 12"
Plenum to Ceiling: 2"
The installation must be made only on a noncombustible
floor.
d) Install the smoke pipe connector to the chimney
with 26-gauge pipe and elbows (to be purchased separately), maintaining the proper clearances for the specific model. Make sure that the proper clearances as
stated on the label and earlier in this manual are
maintained. Seal the smoke pipe in the chimney with
furnace cement. (The chimney connector shall be securely supported, and joints fastened with sheet metal
screws or rivets.)
e) Install 8" diameter heat pipe to plenum of the
central hot air furnace. Use 26-guage pipe and connectors (to be purchased separately). If central air conditioning is installed in the plenum, install heat pipe above
the air conditioning unit. Secure heat pipe connection
with supports and sheet metal screws.
f) Connect electrical supply in the electrical
junction box that is mounted on the back of the Wood
Burning Furnace. See Wiring Diagram (Fig. 10). Remove the cover from electrical junction box. Connect
power supply wires to wires designated, using wire nuts.
The power cord supplied may be used for installation, if
permitted by local codes and regulations. If the power
cord supplied cannot be used, the power supply wiring
must be 90 degrees Centigrade in a metal cable and
should be completed by a qualified installer complying
with NFPA Standard No. 70 and local codes.
Pipe to Combustible:
Sides: 18"
Back: 18"
NOTE: THE MAXIMUM STATIC PRESSURE AT THE CENTRAL OR COMBINED PLENUM MUST NOT
EXCEED 0.12 INCHES WATER COLUMN.
•DRAWINGS FOR ILLUSTRATION PURPOSES ONLY•
15
(U.S. ONLY)
FIG. 11
POWER FAILURE INSTRUCTIONS:
Operation after loss of power
Remove filter if provided.
Do not expect to keep home at normal temperatures.
Do not load fuel above bottom of feed door.
Set Fuel door and Ash door spin draft maximum closed
per the factory installed stops.
1
2
3
4
16
•DRAWINGS FOR ILLUSTRATION PURPOSES ONLY•
CENTRAL INSTALLATION (U.S. & CANADA) (FIGURE 12)
ADD-ON INSTALLATION (U.S. ONLY)
•DRAWINGS FOR ILLUSTRATION PURPOSES ONLY•
(FIGURE 13)
17
ALTERNATIVE PARALLEL INSTALLATION WIRING DIAGRAM - FIG. 14
This unit is certified for parallel installation with exitsting
forced air-gas or oil fired furnace (U.S. Only)
TO GAS/OIL/ELECTRIC
TRANSFORMER
HOTBLAST
COMBINATION CONTROL
LIMIT
H
POWER
SUPPLY
JUMPER IN
H
FAN
GAS/OIL/ELECTRIC
POWER SUPPLY
JUNCTION BOX
CENTRAL
FURNACE
BLOWER
MOTOR
WOOD
FURNACE
BLOWER
MOTOR
CAUTION!
DO NOT CONNECT
PLENUM FAN CONTROL
SWITCH ACROSS FURNACE
LIMIT CONTROL.
18
•DRAWINGS FOR ILLUSTRATION PURPOSES ONLY•
OPERATING INSTRUCTIONS
d.Shake grates vigorously 1/2" left to right to spill
COAL FUEL
ashes into the ash pan. Do this at least once every
Egg size (1-3/16" or larger) bituminous coal for residential
12 hours of operation. Empty ash pan regularly.
furnaces, or any of the specially packed fireplace coals can be
Do not allow ashes to build-up to grate as grate will
used. Coal with a low ash content (2% to 6%) is recommended.
warp and burnout, and you might spill the ashes
WOOD FUEL
when removing the pan.
Hardwood, 18" to 26" should be split and air dried (seasoned) for
Dispose of hot ashes properly (See note 12 on
6 months.
page 4).
LIGHTING
e.
Rotation of the handle (5 o'clock to 7 o'clock)
Open
the
draft
controls
to
"HIGH"
for
maximum
draft.
1.
position will agitate coals and spill ashes into ash
Open
the
feed
door
and
place
paper
and
kindling
on
the
grate
2.
pan.
for starting the fire.
f.
It is advisable for you to get familiar with the shaker
Light
the
fire
and
close
the
feed
door.
3.
grate operation before firing.
Add
wood
or
about
15
lbs.
of
coal
(depending
on
which
4.
model) after fire is burning briskly.
CAUTION
GASES THAT ARE DRIVEN BY FRESH COAL MUST BE
Set draft control for desired temperature.
BURNED OR THEY WILL ACCUMULATE AND EXPLODE.
NEVER SMOTHER A FIRE WHEN ADDING FRESH COAL.
ADDING FUEL
CAUTION
When starting a fire, add small amounts of fuel instead of adding DO NOT OPERATE WITH THE FEED AND/OR ASH DOOR
large quantities of fuel. This will give more complete combus- OPEN. THIS FURNACE IS DESIGNED FOR THERMOtion and less build-up of tars or soot in the chimney.
STATIC OPERATION. OPERATION WITH ANY OF THESE
1.
2.
Set draft control to HIGH before opening feed door.
Wood fire
Add wood to a convenient level.
3. Coal Fire
a. Never smother the fire when adding coal (See Caution).
Gas accumulation and a mild smoky explosion will occur.
Add fresh kindling if the bed of coals has cooled.
b. Add up to 20 lbs. of coal per loading. Never add coal above
the bottom of feed door opening.
c. Stir the coal and watch the fire. Be sure the new coal is
burning briskly before you close the doors and turn the lower
the drat control setting down.
DOORS OPEN WILL OVERHEAT AND DAMAGE THE
FURNACE.
CAUTION
NEVER USE GASOLINE, GASOLINE-TYPE LANTERN
FUEL, KEROSENE, CHARCOAL LIGHTER FLUID, OR
FLAMMABLE LIQUIDS TO START OR "FRESHEN UP" A
FIRE IN THE FURNACE.
CAUTION
NEVER STORE FLAMMABLE LIQUIDS, ESPECIALLY
GASOLINE, IN THE VICINITY OF THE FURNACE.
ADJUSTING BLOWER LIMIT CONTROL SETTINGS
The temperature in the plenum of the warm air furnace at
which the blower turns on or turns off is controlled by the
setting of the pointers in the blower limit control. These
pointers may be adjusted through their entire range of
settings to achieve the desired warm air output from the
furnace. (See Fig. 15)
1.
2.
3.
Move both pointers towards the right (counter clockwise) - this increases the temperature setting at which
the blower will turn on and off.
Move both pointers towards the left (clockwise) - this
decreases the temperature setting at which the blower
will turn on and off.
Move pointers away or apart from each other- this
increases the time that the blower will run on each
warm cycle.
BLOWER FAN
"OFF" POINTER
BLOWER FAN
"ON" POINTER
BLOWER LIMIT
POINTER AND STOP
•DRAWINGS FOR ILLUSTRATION PURPOSES ONLY•
FIG. 15
19
SERVICE HINTS
Do not expect a furnace to draw. It is the chimney that
creates the draft. Smoke spillage into the house or excessive build-up of water or creosote in the chimney would
keep it from functioning properly. Correct the problem
before using this
furnace. Possible causes are:
1.
The connector pipe may be pushed into the chimney
too far, stopping the draft (Fig. 6).
2.
Do not connect two furnaces or a stove and a furnace
into the same chimney flue.
3.
The chimney used for a furnace must not be used to
ventilate the cellar or basement. If there is a cleanout
opening at the base of the chimney, it must be closed
tightly.
4.
If the chimney is operating too cool, water will condense in
the chimney and run back into the furnace. Creosote
formation will be rapid and may block the chimney. Operate
the furnace at a high enough fire to keep the chimney warm
preventing this condensation.
5.
If the fire burns well but sometimes smokes or burns slowly,
it may be caused by the chimney top being lower than
another part of the house or a nearby tree. The wind blowing
over a house or a tree, falls on top of the chimney like water
over a dam, beating down the smoke. The top of the
chimney should be at least 3 feet above the roof and be at
least 2 feet higher than any point of the roof within 10 feet
(Fig. 5).
6.
See page 28 for list of trouble shooting tips.
A DRAFT READING OF .05 TO .06 W.C. IS SUGGESTED FOR PROPER BURNING
OF THIS UNIT WHEN USING WOOD.
CHIMNEY MAINTENANCE
Creosote and Soot - Formation and Need for Removal
When wood is burned slowly, it produces tar and other
organic vapors, which combine with expelled moisture to
form creosote. The creosote vapors condense in the relatively cool chimney flue of a slow-burning fire. As a result,
creosote residue accumulates on the flue lining. When
ignited, this creosote makes an extremely hot fire.
The chimney should be inspected at least twice monthly
during the heating season to determine if a creosote or soot
build-up has occurred.
20
If soot or creosote has accumulated, it should be removed to
reduce the risk of a chimney fire.
Chimney fires burn very hot. If the chimney catches fire, immediately call the fire department, then reduce the fire by closing the
inlet air control. Pour a large quantity of coarse salt, baking soda
or cool ashes on top of the fire in the firebox.
CAUTION
A Chimney fire may cause ignition of wall studs or rafters
which you thought were a safe distance from the chimney.
If you have a chimney fire, have your chimney inspected by
a qualified person before using again.
•DRAWINGS FOR ILLUSTRATION PURPOSES ONLY•
MODEL 22AF - PARTS
•DRAWINGS FOR ILLUSTRATION PURPOSES ONLY•
21
MODEL 22AF - PARTS LIST
KEY PART NO.
1
69356
2
88032
3
40246
4
25102R
5
22682
6
25106R
7
22761
8
22762
9
24959B
10
25202B
11
23800
12
83445
13
23787
14
83250
15
23397
16
40264
17
89066
18
68238
19
89319
20
22140
21
68234
22
80145
23
68231
24
80131
N/S
80231
25
68232
26
80230
27
40256
28
40257
29
40260
**
69355
30
25105B
N/S
88066
31
83872
32
89354
33
83461
34
24935
35
83045A
36
83274
37
23859B
38
83345
39
83178
*
69388
40
25190B
N/S
88033
41
89354
42
------43
24935
44
83045A
45
83274
46
83503
N/S = Not Shown
22
DESCRIPTION
Firebox Weldment
Flue Collar Gasket
Flue Collar
Cabinet Side
Cabinet Back
Cabinet Top
Flue Collar Ring
Forced Draft Ring
Feed Door Hinge
Ash Door Hinge
Smoke Curtain
1/4-20 x 1-1/4 Carriage Bolt
Smoke Curtain Clip
1/4-20 Kep Nut
Baffle
Front & Rear Liner
Brick (4-1/2 x 9 x 1-1/4 THK.)
Ash Pan Weldment
Blower Gasket
Junction Box Bracket
Fan Limit Bracket Assembly
Fan Limit Control
Fan Limit Conduit Assembly
4 x 4 Junction Box
Junction Box Cover
Blower Connection Conduit Assembly
Blower Motor - 1/20 hp
Grate Frame
Shaker Grate
Shaker Handle
Feed Door Assembly (Order ONLY if the entire Assembly is needed)
Feed Door (Painted)
5/8 Rope Gasket
Door Pin
Feed Door Handle
Handle Washer
Ash Door Latch
3/8" SAE Flat Washer
3/8-16 Lock Nut
Spin Damper (Painted)
3/8-16 x 1-3/4 Carriage Bolt
3/8-16 Jam Nut
Ash Door Assembly (Order ONLY if the entire Assembly is needed)
Ash Door
3/8 Rope Gasket
Ash Door Handle
Handle Bushings (Comes with Handle - 89354)
Ash Door Latch
3/8" SAE Flat Washer
3/8-16 Lock Nut
3/8-16 x 2-1/2 Carriage Bolt
•DRAWINGS FOR ILLUSTRATION PURPOSES ONLY•
QTY.
1
1
1
2
1
1
1
1
1
1
1
2
2
2
1
2
10
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
4.58 ft
2
1
1
1
1
1
3
2
4
1
1
2.42 ft
1
1
1
1
1
1
APPENDIX
INSTALLATION A
NOTE: ANTI-BACKDRAFT FLAPPERS OR BAFFLE ARE REQUIRED
FOR THIS INSTALLATION.
•DRAWINGS FOR ILLUSTRATION PURPOSES ONLY•
23
APPENDIX
INSTALLATION B
NOTE: ANTI-BACKDRAFT FLAPPERS OR BAFFLE ARE REQUIRED
FOR THIS INSTALLATION.
24
•DRAWINGS FOR ILLUSTRATION PURPOSES ONLY•
APPENDIX
INSTALLATION C
NOTE: ANTI-BACKDRAFT FLAPPERS OR BAFFLE ARE REQUIRED
FOR THIS INSTALLATION.
•DRAWINGS FOR ILLUSTRATION PURPOSES ONLY•
25
APPENDIX
INSTALLATION D
(U.S. ONLY)
INSTALLATION E
(U. S. ONLY)
26
•DRAWINGS FOR ILLUSTRATION PURPOSES ONLY•
APPENDIX
INSTALLATION F
INSTALLATION G
•DRAWINGS FOR ILLUSTRATION PURPOSES ONLY•
27
TROUBLE SHOOTING TIPS FOR WARM AIR FURNACE
List of Problems
1. Smoking when feed door is open.
Possible Cause
Solutions
a) Insufficient draft.
b) Clogged chimney or chimney
connector.
c) Down draft in chimney.
a) Open spin dampers.
b) Clean chimney.
a) Wood not seasoned and dry.
c) Insufficient flue draft.
a) Allow wood to season in a dry, well
ventilated area for six months.
b) Set blower control to higher
temperature (See Page 19).
c) Set flue draft (See Page 9).
3. Blower does not run.
a) Improperly wired.
b) Bad blower control.
c) Bad relay.
d) Bad blower motor.
a)
b)
c)
d)
4. No air from registers - fan running.
a) Registers are closed.
b) Duct work improperly installed.
c) Improper wiring between central
furnace and Model 22AF.
a) Open registers.
b) Correct duct work installations.
c) Wire unit properly.
5. Air from registers is not hot.
a) Blower control set too low.
a) Adjust blower control to higher
setting (See Page 19).
b) Replace blower control.
2. Furnace does not heat.
b) Blower control set too low.
b) Bad blower control.
c) Add raincap to chimney.
Wire unit properly.
Replace blower control.
Replace relay.
Replace blower.
6. Blower runs too long.
Blower control cut off set too low.
Set blower control cut off to higher
setting (See Page 19)
7. Blower does not run long enough.
a) Blower control cut off set too high.
a) Set blower control cut off to lower
setting (See Page 19).
b) Replace blower.
b) Bad blower motor.
8. Smoke and/or odor from registers
when furnace is used for first time.
Oil from furnace and duct work.
The metal used in construction of the
furnace and duct work has a light
coating of oil. This should disappear
after a short period of time. Once this
burn-off has occurred, it should not
reoccur.
9. Creosote build-up.
a) Burning green wood (not seasoned
or dry).
b) Thermostat setting too low for type
fuel.
a) Burn only seasoned wood.
a) Insufficient draft.
b) Smothering fire when adding fresh
fuel.
a) Open stack damper.
b) Add fuel so as not to smother fire.
10. Flame spillage when feed door is
open.
28
b) Set thermostat higher to attain
higher flue temperatures. This will aid
in preventing build-up of creosote.
•DRAWINGS FOR ILLUSTRATION PURPOSES ONLY•
NOTES
•DRAWINGS FOR ILLUSTRATION PURPOSES ONLY•
29
NOTES
30
•DRAWINGS FOR ILLUSTRATION PURPOSES ONLY•
HEATING WITH WOOD
TYPE
WEIGHT
PER CORD
EFFICIENCY
RANKING
SPLITS
MILLIONS
BTU's/CORD
(LBS. CU. FT., DRY)
Hickory
63
4500
1.0
Well
31.5
White Oak
48
4100
.9
Fair
28.6
Red Oak
46
3900
.8
Fair
27.4
Beech
45
3800
.7
Hard
26.8
Sugar Maple
44
3700
.6
Fair
26.2
Black Oak
43
3700
.6
Fair
25.6
Ash
42
3600
.5
Well
25.0
Yellow Birch
40
3400
.4
Hard
23.8
Red Maple
38
3200
.3
Fair
22.6
Paper Birch
37
3100
.3
Easy
22.1
Elm/Sycamore
34
2900
.2
Very Difficult
20.1
Red Spruce
29
1800
.1
Easy
16.1
•DRAWINGS FOR ILLUSTRATION PURPOSES ONLY•
31
HOW TO ORDER REPAIR PARTS
THIS MANUAL WILL HELP YOU OBTAIN EFFICIENT, DEPENDABLE
SERVICE FROM YOUR HOTBLAST FURNACE, AND ENABLE YOU
TO ORDER REPAIR PARTS CORRECTLY.
KEEP THIS MANUAL IN A SAFE PLACE FOR FUTURE REFERENCE.
WHEN WRITING, ALWAYS GIVE THE FULL MODEL NUMBER
WHICH IS ON THE NAMEPLATE ATTACHED TO THE HEATER.
WHEN ORDERING REPAIR PARTS, ALWAYS GIVE THE
FOLLOWING INFORMATION AS SHOWN IN THIS LIST:
1. THE PART NUMBER
2. THE PART DESCRIPTION
3. THE MODEL NUMBER: 22AF
STATES STO
TED
V
NI
USSC
COMPANY
32
E
U
4. THE SERIAL NUMBER:____________________
UNITED STATES STOVE COMPANY
227 INDUSTRIAL PARK ROAD
P.O.BOX 151
SOUTH PITTSBURG, TN 37380
(423) 837-2100
WWW.USSTOVE.COM
•DRAWINGS FOR ILLUSTRATION PURPOSES ONLY•
C
R
US