Direct Venting; Power (Side-Wall) Venting - Important Note Regarding - Thermo Products Spirit Series Installation, Operation And Service Manual

Direct Venting

The VHF-A** may also be horizontally vented through a side wall. Direct venting is only
allowed when using an approved Direct Vent Termination , See Table 2, and is limited to
a maximum length of 15'.
Furnace Models
VHF-ABP, VHF-ABT
VHF-ACP, VHF-ACT
The Direct Vent Termination kit consists of a concentric through-the-wall vent
termination/inlet air vent hood and 15' of Stainless Steel Insulated Flexible Pipe that
requires 2" clearance to combustibles.
The vent pipe may be installed either through the upper knock-out on the left side
casing of the unit or vertically out the top opening of the vestibule. The 4" flexible vent
pipe included with the vent kit is able to be installed at 2" clearance to combustibles.
A field supplied smooth wall 4" combustion air pipe will need to be provide to connect the
combustion air from the termination hood to the burner. The accessory kit will provide the
fitting s needed to connect the 4" pipe to the burner. The combustion air inlet can be
installed through the either the lower left or right side casing knock-out.
For proper installation follow the Instruction provide with the Direct Vent Termination Kit.
Power (Side-Wall) Venting – Important Note Regarding
c CAUTION: Thermo Products, LLC 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.
NOTICE: Thermo Products recommends the use of a chimney to vent residential
oil furnaces. If a power venter must be used, it is the responsibility of the installer
and power venter manufacturer to design, assemble, and demonstrate proper
operation of the power venting system with the furnace.
DIRECT VENT
TERMINATION KIT
(Part #)
AOPS8393
AOPS8393
Table2: Approved Direct Vent Kits
9
DIRECT VENT
ACCESSORY KIT
(Part #)
AOPS8394
AOPS8432