Venting - Thermo Products Spirit VHF-ABE Installation, Operation And Service Manual

All installations and services must be performed by qualified service personnel.
Power (Side-Wall) Venting-Important Note Regarding
cCAUTION: The manufacturer of this furnace will NOT assume responsibility for
damage to, and deterioration of, exterior building materials, e.g. brick, siding, clapboards,
and etc., in close proximity to the vent terminal due to operation of a power vented, oil
furnace. This policy is applicable regardless of the cause of sooting.
Two (2) problems typically arise when power venting any oil-fired appliance.
1) Soot buildup may occur at an accelerated rate on critical components of the
furnace oil burner, e.g. the primary control flame sensor ("cad cell"), the burner
head, oil nozzle, and etc.
2) Severe damage may occur to external surfaces of the structure in the event the
furnace continually produces a high level of smoke in the flue gases. Excess
smoke and soot can be produced for many reasons, some of which cannot be
successfully controlled by the installer and the appliance manufacturer.
NOTICE: The manufacturer of this furnace recommends the use of a chimney to vent this
residential oil furnace. If a power venter must be used, it is the responsibility of the
installer and power venter manufacturer to design and assemble a satisfactory power vent
system.
A. VENTING:
NOTE: On the VHF-A** it is possible to rotate the flue elbow (which is factory installed for vertical discharge) 90°
counterclockwise from the vertical position to adapt to various venting systems.
c CAUTION MUST BE TAKEN NOT TO EXCEED 90° ROTATION (OF THE FLUE
ELBOW) COUNTERCLOCKWISE OR RIGHT FROM THE VERTICAL POSITION.
ROTATION OF FRONT FLUE ELBOW
When an installation requires that the flue exit out the left hand side casing on a front flue unit, remove screw
securing the 90 deg. elbow and rotate it 90° counterclockwise. Then, remove knock-out in side casing and extend
vent through the opening.
A trim collar may be ordered from the manufacter of this furnace to hide the gap around the flue pipe. This trim
collar, however, is not required for operation. Trim collar/gasket part numbers(s) 14121 / 330073.
NOTE: ROTATION OF FLUE PIPE IS ONLY ALLOWED FOR LEFT HAND SIDE VENTING
APPLICATIONS.
The VHF-A** may be vented through a standard correctly sized chimney.
The VHF-A** may also be horizontally vented through a side wall. The manufacter of this furnace has available the
Field model FDVS-45/FVOP-415 side wall vent kit for such applications. When installing the FDVS-45/FVOP-415
side wall vent kit, outside combustion air must also be applied to the burner. The following table identifies
application order information.
2