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introduction
This manual provides installation, operation, maintenance
instructions and parts ordering information for the model LW
series wood, coal burning furnace.
Please read all instructions carefully before attempting
installation of this unit. Installation should only be done
by a qualified installer.
unPacking and insPection
Inspect the unit for visible damage. The furnace is shipped in
two cartons. Contents of items shipped is as follows:
1. carton one: The basic furnace comes in the carton
with the fire brick and grates installed. Inside the
furnace wood-firing door is the smoke pipe draw col-
lar, the primary air draft tube, and a bag containing
the wood firing door latch assembly and handle, the
ash door latch handle and the ash door pull handle.
Remove these items and set aside for later installa-
tion.
. carton two: The accessory package contains the
thermostat, barometric damper, fan and limit control,
damper control, transformer and owner's manual.
rules for safe installation and oPeration
1.
Read these rules and the instructions carefully.
Failure to follow these rules and instructions could
cause a malfunction of the furnace. This could result
in death, serious bodily injury and/or property dam-
age.
2.
Check your local codes. The installation must com-
ply with them.
3.
Use only the type of fuel approved for this furnace.
Over-firing will result in failure of heat exchanger and
cause dangerous operation.
4.
You must have a sufficient supply of combustion air
to the area in which the furnace is located. (page 4)
5.
Factory Built Chimneys: Connect this furnace to a
furnace ratings in british therMal units (btu) Per hour
Input
Output
Rating
140,000
112,000
iMPortant
Register
Rating
Output
100,000
chimney that complies with NFPA 211 3-1.2. Factory
built chimneys for use with wood-burning appliances
shall comply with the HT requirements of UL 103 or
CAN/ULC-S629-M87. This means you must install
what is referred to as type HT all fuel chimney.
Masonry Chimneys: Connect this furnace to a chim-
ney that complies with NFPA 211 3-1.2. A field
constructed chimney of solid masonry units, bricks,
stones, listed masonry chimney units, or reinforced
Portland cement concrete that is lined with suitable
chimney flue liners and built in accordance with the
provisions of Chapter 4 of this standard.
6.
Follow a regular service and maintenance schedule
for efficient and safe operation.
7.
Before servicing, allow furnace to cool. Always shut
off electricity and fuel to furnace when working on it.
This will prevent electrical shocks or burns.
furnace sPecifications
Blower Size
Blower C.F.M.
Motor Size
Firebrick Lined
Cast Iron Grates
Wood Fire Door
Air Filter
Wood Combustion Chamber Size
locating the furnace
Locate the furnace as close to the chimney and flue as pos-
sible and near the center of the heat distribution center.
Furnace should be located so that sufficient air is available
for proper combustion and ventilation. Location must comply
with minimum clearances required for fire protection and
accessibility. See Fig. 2 on page 6 for typical installation.
See Combustion Air, page 13
It is recommended that a 2", noncombustible raised pad
be used for the furnace. This will prevent moisture from
getting under the furnace and causing corrosion.
MINIMUM RECOMMENDED DUCT SYSTEM
(HEATING ONLY)
Supply Runs
6" Round
or
3-1/4 x 12"
8" Round
12
6
10" x 10"
800 - 1800
1/3 - 1/2 -3/4 HP
11" x 10"
20" x 25" x 1"
24" x 16"
note
Return Grille Louver Area
Wall
Floor
629
517
YES
YES
(sq. in.)
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