Adams Condensing Oil-Fired Furnace - Manual (Page 8)

A return air duct system is reccxnmended.
Where there is no complete return air duct
system, a return connection should be run
full size to a location outside the confined
space and completely sealed so that no air
from the confined space can be circulated
through the heating duct system.
EXISTING FURNACE REMOVAL
NOTE: When an existing furnace is
removed from a venting system serving
other appliances, the venting system may be
too large to properly vent the remaining
attached appliances.
If this furnace is to be installed in the same
space with other oil fired appliances, such
as a water heater, ensure there is an
adequate supply of combustion and
ventilation air for the other appliances.
VI. VENT/FLUE PIPE &
COMBUSTION AIR PIPE
! WARNING
FAILURE TO FOLLOW THESE
INSTRUCTIONS CAN RESULT IN BODILY
INJURY OR DEATH. CAREFULLY READ
AND FOLLOW ALL INSTRUCTIONS
GIVEN IN THIS SECTION.
I WARNING
UPON COMPLETION OF THE
FURNACE INSTALLATION,
CAREFULLY INSPECT THE
ENTIRE FLUE SYSTEM BOTH
INSIDE AND OUTSIDE OF THE
FURNACE TO ASSURE IT IS
PROPERLY SEALED. LEAKS IN
THE FLUE SYSTEM CAN RESULT
IN SERIOUS PERSONAL INJURY
OR DEATH DUE TO EXPOSURE
TO FLUE PRODUCTS. INCLUDING
CARBON MONOXIDE.
A condensing oil furnace achieves its high
level of efficiency by extracting almost all of
the heat from the products of combustion
and cooling them to the point where
condensation takes place. Because of the
relatively low flue gas temperature and
water condensation requirements, PVC pipe
is used as venting material. This furnace
must not be connected to Type B. BW, or L
vent or vent connector, and must not be
vented into any portion of a factory built or
masonry chimney, except when used as a
pathway for PVC as descried later in this
section. Never common vent this appliance
with another appliance or use a vent which
is used by a solid fuel appliance.
Do not use commercially available "no hub
connector" other than those shipped with
this product.
It is the responsibility of the installer to follow
the manufacturers’ recommendations and to
verify that all vent/flue piping and connectors
are compatible with furnace tiue products.
Additionally, it is the responsibility of the
installer to ensure that all piping and
connections possess adequate structural
integrity and support to prevent flue pipe
separation, shifting, or sagging during
furnace operation.
MATERIALS AND JOINING METHODS
WARNING
TO AVOID BODILY INJURY, FIRE OR
EXPOLSION, SOLVENT CEMENTS MUST
BE KEPT AWAY FROM ALL IGNITION
SOURCES (I.E., SPARKS, OPEN FLAMES
AND EXCESSIVE HEAT) AS THEY ARE
COMBUSTIBLE LIQUIDS. AVOID
BREATHING CEMENT VAPORS OR
CONTACT WITH SKIN AND/OR EYES.
Three-inch nominal diameter PVC Schedule
40 pipe meeting ASTM D1785, PVC primer
meeting ASTM F6566, and PVC solvent
cement meeting ASTM D2564 specifications
must be used. Fittings must be DWV type
fittings meeting ASTM D2665 and ASTM
03311. Carefully follow the manufacturer’s
instructions for cutting, cleaning, and solvent
cementing of PVC,
As an alternative to PVC pipe, primer,
solvent cement, and fittings, ABS materials
which are in compliance with the following
specifications may be used. Three-inch
ABS Schedule 40 pipe must meet ASTM
D1527 and, if used in Canada, must be CSA
listed solvent cement for ABS to PVC
transition jdnt must meet ASTM D2235 and,
if used in Canada must be CSA listed. The
solvent cement for the PVC to ABS
transition joint must meet ASTM D3138.
Fittings must be DWV type fittings meeting
ASTM D 2661 and ASTM D3311 and, if
used in Canada, must be CSA listed.
Carefully follow the pipe manufacturers'
instructions for cutting, cleaning, and solvent
cementing PVC and/or ABS.
AH 90 elbows must be medium radius (1/4
bend DWV) or long radius (Long sweep >4
bend DWV) types conforming to ASTM
D3311, A medium radius (1/4 bend DWV)
elbow measures 4-9/16 minimum from the
plane of one opening to the centerline of the
other opening for 3" diameter pipe.