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1.3.1)
Installation of the filter rack
When you install your furnace, the filter rack opening can be installed
on either side (right or left) for air filter maintenance.
FIGURE 1
DNS-0678 Rev. B
The required minimum clearances for this furnace are specified
in Table 1.
The furnace should be positioned as closely as possible to the
chimney to keep vent connections short and direct. It should also be
as close as possible to the centre of the air distribution system.
CAUTION
Do NOT operate furnace in a corrosive atmosphere
containing chlorine, fluorine or any other damaging
chemicals. Refer to Part 1, section 5.2 (1.5.2).
WARNING
Electrical shock hazard.
This furnace is not watertight and is not designed
for outdoor installation. This furnace shall be
installed in such a manner as to protect the
electrical components from water.
Outdoor installation will lead to a hazardous
electrical condition, premature furnace failure,
property damage, injury or death.
LOCATION
Furnace
Sides
Supply plenum within 6 ft of furnace
Back
Furnace
Furnace or plenum
Top
Horizontal warm air duct within 6 ft of furnace
Bottom
Furnace (combustible floor)
Horizontally or below flue pipe
Flue pipe
Vertically above flue pipe
Front
Furnace
Minimum clearances – combustible materials
APPLICATION
1.4)
VENTING
Poisonous
carbon
explosion hazard.
Read and follow all instructions in this section.
Failure to properly vent this furnace can result in
property damage, injury or death.
When the furnace is chimney vented together with other
combustion appliances such as a water heater, the
allowable venting materials for use with those
appliances must be investigated ("L"-Vent, etc.).
These oil furnaces are certified for use with "L" vent, "A" vent, tile-lined
and metal-liner-tile-lined chimneys. The appliance may be connected
to a chimney of proper size and adequate chimney base temperature,
as specified in the Installation Code. The relevant excerpt from the
code is found in this section. Use it as a guide when local or national
codes do not exist.
Flue pipe sizing
The following table is an excerpt from the installation code that
indicates permitted flue sizes and minimum base temperatures for
circular flues in chimneys with a thermal resistance of less than R6
2
•hr •°F / Btu).
(6 ft
Where a new appliance, burner, or chimney is installed, chimney vent
sizes and maximum flue-gas temperatures shall comply with Table 2,
p. 6. Measurements must be taken at the chimney connector, after 5
minutes of operation with the barometric damper shut.
Poisonous carbon monoxide gas hazard.
Never install a hand operated damper in the vent
pipe. However, any Underwriters Laboratories listed
electrically operated automatic type vent damper
may be installed if desired. Be sure to follow the
instructions provided with vent damper. Also, read
and follow all instructions in this section of the
manual.
Failure to properly vent this furnace or other
appliances can result in death or personal injury,
property damage.
TABLE 1
MBO, FLO, LBO125, OLF140
2.54 cm (1")
2.54 cm (1")
45.72 cm (18")
2.54 cm (1")
2.54 cm (1")
ø
22.86 cm (9")
22.86 cm (9")
0.60 m (24")
WARNING
monoxide
gas,
CAUTION
WARNING
LBO145, OLR182
2.54 cm (1")
2.54 cm (1")
45.72 cm (18")
5.08 cm (2")
5.08 cm (2")
ø
22.86 cm (9")
22.86 cm (9")
0.60 m (24")
fire
and
5
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