5
2- INSTALLATION
2.1- LOCATION OF THE FURNACE
CAUTION
Carefully check your furnace upon delivery for any
evidence of damage that may have occurred during
shipping and handling. Any claims for damages or lost
parts must be made with the Transport Company.
Position the furnace as closely as possible to the chimney or vent
terminal, providing ample clearance to permit easy accessibility for
cleaning the inside of the furnace, the removal of filters, blower,
motors, controls and flue connections. This unit can be installed in the
downflow or horizontal (air left or right) position.
This furnace is approved for reduced clearances to combustibles.
Therefore, it may be installed in an alcove, closet, or crawl space.
Clearances indicated on the rating plate must be respected.
In the downflow position, this furnace is approved for installation on
combustible floors only when the accessory No CFB-1 "Combustible
Floor Base" is used.
In the horizontal position (air left or right), this furnace is approved for
installation on combustible floors only when the accessory No. HFB-
1 "Horizontal Floor Base" is used. It can also be suspending using an
angle iron frame with treaded rod hangers.
However, do not install furnace directly on carpet or other combustible
material, which can trap air under the floor.
The furnace must be installed level for safe and quiet operation.
CAUTION
Do
NOT
operate the furnace in a corrosive atmosphere
containing chlorine, fluorine or any other damaging
chemicals. Refer to section 2.3.2.
2.2- VENTING
2.2.1- General
The furnaces can be vented in several ways:
Chimney Vented
Using the Beckett AFG or Riello 40-F burner, the furnaces can be
chimney vented with or without a barometric damper. The unit will
operate at a
negative
over fire draft and flue draft.
WARNING
Poisonous carbon monoxide gas, fire and
explosion hazard.
Read and follow all instructions in this section.
Failure to properly vent this furnace can cause
bodily injury or death, property damage.
Side-wall Vented
Using the Beckett AFII or Riello 40-BF burner with the integral pre-
and post-purge controls, the system can be side-wall vented for
maximum efficiency and without the use of a side-wall power vent.
The unit will operate at a
positive
over fire draft and flue draft.
WARNING
Poisonous carbon monoxide gas hazard.
Never vent this furnace together with another
combustion appliance when side-wall venting.
To do so may result in asphyxiation and death to
the occupants
2.2.2- Chimney installations
When set up for chimney venting, this furnace is certified for use with
an L-vent, A-vent, tile-lined and metal-liner-tile lined chimney, and can
be vented both with and without a barometric draft damper. However,
this furnace is not approved for use without a barometric damper if it
is to be vented together with another oil-fired appliance such as a
water heater.
With barometric damper
This furnace may be vented into a chimney of suitable size and
adequate chimney base temperature, as specified in the Installation
Code. When a barometric damper is used, the basement air entering
the damper reduces the possibility of vent condensation. The relevant
excerpt from the code is found in this section and can be used as a
guide where local or national codes do not exist. One option, to
increase the chimney base temperature, is to use vent connection
insulation.
Without barometric damper
Due to the lack of dilution air that would ordinarily be drawn into the
barometric damper, the dew point of the flue gases is raised. To offset
the increased tendency for vent condensation, the chimney must be
lined. The liner must be insulated according to the insulating
procedure recommended by the manufacturer of the liner. Also, the
vent connector should be as short as possible and either be of double
wall construction or of single wall construction with 25.4 mm (1") of
insulation.
WARNING
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 instructions provided with vent damper.
Read and follow all instructions in this section.
Failure to properly vent this furnace or other
appliances can result in personal injury and/or
death, property damage.
CAUTION
When the furnace (chimney installation) is vented
together with other combustion appliances such as a
water heater, the allowable venting materials (L-Vent,
etc.) for use with those appliances must be investigated.
Flue pipe sizing
