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In the horizontal (air left or right) position, the OCF is certified for use
on combustible floors only when the accessory No. HFB-1 "Horizontal
Floor Base" is used in the installation.
In the horizontal (air left or right) position, the OCF can be suspended
using an angle iron frame with threaded rod hangers provided the
weight of the frame and furnace considered in the support
calculations.
For an attic installation, keep the building at least 12" away from any
opening in the furnace enclosure as some insulation can be
combusted.
Minimum Installation clearances from combustible materials (Chimney installation*)
LOCATION
APPLICATION
Furnace
Sides
Supply plenum, warm air duct within 6 ft of furnace
Back
Furnace
Top
Furnace casing or plenum
Bottom
Furnace – combustible floor **
Front
Furnace
* See Part 1 section 4.3 for Direct Vent application clearance.
** Combustible floor requires accessory bases CFB-1 or HFB-1.
4)
VENTING
4.1)
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 be
operated at a negative over fire draft and stack draft.
WARNING
WARNING
!
Poison carbon monoxide gas, fire and explosion
hazard.
Read and follow all instructions in this section.
Failure to properly vent this furnace can result in
property damage, personal injury and/or death.
WARNING
WARNING
!
Poison carbon monoxide gas hazard
Never co-vent the furnace with another combustion
appliance when side-wall venting.
To do so may result in asphyxiation and death to
the occupants
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 with the new
However, do not install furnace directly on carpet or other combustible
material which can trapped air under the floor.
The furnace must be installed level for safe quiet operation.
Do NOT operate furnace in a corrosive atmosphere
containing chlorine, fluorine or any other damaging
chemicals. Refer to Part 1, section 5.2.
TABLE #1
ODH5-F059-085-3 AND OCF105A12B
DV-2000™ venting system for maximum efficiency, and without the
use of a side-wall power ventor. The unit will be operated at a positive
overfire draft and stack draft.
4.2)
Chimney installations:
The oil furnaces, when set up for chimney venting, are certified for use
with L-vent, A-vent, tile-lined and metal-liner-tile-lined chimneys, and
can be vented both with and without a barometric draft damper.
However, the furnace has not been certified without the barometric
damper when it is to be co-vented with another oil-fired appliance,
such as a water heater.
With a barometric damper:
The appliance may be installed in a chimney of the proper 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 - Use it as a guide when
local or national codes do not exist. To increase the chimney base
temperature, add a vent connector insulation is a possibility.
!
Poison 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 property damage, personal
injury and/or death.
CAUTION
1"
1"
1"
1"
0" **
24"
WARNING
WARNING
5
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