240005126 Rev A 10/27/2005
4
5. COMBUSTION AIR
If the furnace is installed in a confined area such as a
small utility room, two openings must be provided
connecting to a well-ventilated space (full basement,
living room or other room opening thereto, but not a
bedroom or bathroom). One opening shall be located
above the level of the upper vent opening and one
opening below the combustion air inlet opening in the
front of the 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. When a furnace is installed in a full
basement, infiltration is normally adequate to provide
air for combustion and draft operation. Furnace rooms
under 65m³ (700 ft³) should automatically be treated as
confined space.
6. CHIMNEY VENTING
The flue pipe should be as short as possible with
horizontal pipes sloping upward toward the chimney at
a rate of one-quarter inch to the foot. The flue pipe
should not be smaller in cross sectional area than the
flue collar on the furnace. The flue pipe should connect
to the chimney such that the flue pipe extends into,
and terminates flush with the inside surface of the
chimney liner. Seal the joint between the pipe and the
lining. The chimney outlet should be at least two feet
above the highest point of a 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.
NOTE: THE FURNACE IS APPROVED FOR
USE WITH TYPE L VENT OR EQUIVALENT.
THE FURNACE MUST BE CONNECTED TO A
FLUE HAVING SUFFICIENT DRAFT AT ALL
TIMES TO ENSURE SAFE AND PROPER
OPERATION OF THE APPLIANCE.
NOTE: THE OVER-FIRE DRAFT PRESSURE IS
SUFFICIENT WITH A -0.02 IN. W.C. READING
MEASURED AT THE BURNER MOUNTING
PLATE.
The flue pipe must not pass through any floor or
ceiling, but may pass through a wall where
suitable fire protection provisions have been
installed. Refer to the latest edition of CAN/CSA
B-139 for rules governing the installation of oil
burning equipment. In the United States, refer to
the latest edition of NFPA 31 for regulations
governing the installation of oil burning
equipment.
See appendix A for burner set-up.
7. INSTRUCTIONS FOR OIL FIRED BLOCKED
VENT SAFETY KIT
FOR CHIMNEY VENT USE ONLY
NOTE: REQUIRED FOR CANADIAN
INSTALLATIONS, OPTIONAL FOR UNITED
STATES INSTALLATIONS.
A qualified technician must install this device in
accordance with this manufacturer’s installation
instructions. Wiring must be in accordance with the
Canadian Electrical Code and applicable local codes.
READ THESE INSTALLATION INSTRUCTIONS
CAREFULLY AND COMPLETELY BEFORE
INSTALLING THIS CONTROL.
DO NOT RESET THE SAFETY DEVICE OR
RESTART THE APPLIANCE UNLESS THE CAUSE
FOR ITS ACTIVATION HAS BEEN IDENTIFIED
AND CORRECTED BY A QUALIFIED
TECHNICIAN. ENSURE THE SWITCH AND
APPLIANCE HAS BEEN SERVICED BY A
QUALIFIED TECHNICIAN PRIOR TO PLACING
BACK INTO SERVICE. A QUALIFIED
TECHNICIAN MUST PERFORM ANNUAL
INSPECTION AND CLEANING.
Wiring must be in accordance with the current
Canadian Electrical Code
and any other applicable
federal, provincial and local code requirements.
If installed within the United States, wiring must be in
accordance with the current
National Electrical Code
and any other applicable federal, state and local code
requirements.
