Adams Condensing Oil-Fired Furnace - Manual (Page 9)

PROPER VEWT/FLUE AND COMBUSTION
AIR PIPtNG PRACTICES
Adhere to these instructions to ensure safe
and proper furnace performance.
The length, diameter, and number of elbows
of the ventfflue pipe and combustion air pipe
effects the performance of the furnace and
must be carefully sized.
All piping must be installed In accordance
with local codes and these instructions.
Piping must be adequately secured and
supported to prohibit sagging, joint
separation, and/or detachment from the
furnace.
Horizontal runs of vent/flue piping must be
supported every three to five feet and must
maintain a % inch per foot downward slope,
back towards the furnace, to properly return
condensate to the furnace's drain system.
Precautions should be taken to prevent
condensate from freezing inside the
vent/flue pipe and/or at the vent/tiue pipe
termination.
All vent/flue piping exposed to freezing
temperatures below 35 F for extended
periods of time must be insulated with %”
thick closed cell foam.
Also all vent/flue piping exposed outdoors in
excess of the terminations shown in this
manual (or in unheated areas) must be
Insulated with 14” thick closed cell foam,
inspect piping for leaks prior to installing
insulation.
TERMINATION LOCATIONS
EXHAUST VENT/INLET AIR
LOCATION
1. The vent piping for this furnace is
approved for zero clearance to
combustible construction.
2. The condensing oil furnace, like all
high efficiency products, is likely to
produce a visible vapor plume due
to condensation. Surfaces near the
vent termination will likely be coated
with condensation.
3. Care must be taken to locate the
exhaust vent where the exhaust
gas, vapor plume, and condensation
do not cause a hazard or nuisance.
For example, so not locate the
exhaust vent termination under a
deck where, under certain
conditions, it could form a coating of
ice causing a hazard or reduce the
life of the deck materials.
Fitting Desoiption Equivalent Length
Elbow, 90
5
Cleanout Tee 5
Elbow, 45 3
Vertical Vent Termination 0
Sidewall Vent Termination 0