Operating instructions

6
Manufacturer recommends overfi re draft of -0.02 in. w.c.
See fi gure 2.
Flue pipe must not pass through any fl oor or ceiling,
may pass through a wall where suitable fi re protection
provisions have been installed.
• Refer to CAN/CSA B-139 for rules governing the
installation of oil burning equipment.
• United States, refer to NFPA 31 for regulations
governing the installation of oil burning equipment.
See appendix A for burner set-up.
Over-fi re draft access port.
7. Combustion Air
• Furnace installed in a closet or utility room, provide
two openings connecting to well-ventilated space (full
basement, living room or other room opening, not a
bedroom or bathroom).
A. One opening shall be located above level of upper
vent opening.
B. One opening below combustion air inlet opening
in front of furnace.
Each opening shall have a minimum free area of 1½
square inches per 1,000 Btu/h of total input rating of
all appliances installed in the room.
• For furnaces located in buildings of unusually tight
construction, such as those with high quality weather
stripping, caulking, windows and doors, or storm
sashed windows, or where basement windows are
well sealed, a permanent opening communicating
with a well ventilated attic or with the outdoors shall
be provided, using a duct if necessary. The duct
opening shall have a free area of 1½ square inches
per 1,000 Btu/h of total input rating of all appliances
to be installed.
• Furnace installed in a full basement, infi ltration is
normally adequate to provide air for combustion and
draft operation.
• Furnace rooms under 65m³ (700 ft³) should
automatically be treated as confi ned space.
8. Chimney Venting
• Flue pipe should be as short as possible with
horizontal pipes sloping upward toward the chimney
at a rate of one-quarter inch per foot.
• Flue pipe should not be smaller in cross sectional
area than fl ue collar on the furnace.
• Flue pipe should connect to chimney so the fl ue pipe
extends into, and terminates fl ush with the inside
surface of chimney liner. Seal the joint between pipe
and lining.
• Chimney outlet should be at least two feet above
highest point of peaked roof.
• All unused chimney openings should be closed.
• Chimneys must conform to local, provincial or state
codes, or in the absence of local regulations, to the
requirements of the National Building Code.
NOTICE
This furnace is approved for use with Type L vent or
equivalent.
WARNING
Asphyxiation hazard. Chimney vented versions of furnace
must be connected to fl ue having suffi cient draft at all
times. Failure to follow these instructions could result in
death or serious injury.
!
Figure 2 - Check Over-Fire Draft