American Standard PFWF071A93ABA Installation Manual page 25

POWER (SIDE-WALL) VENTING
▲ ▲
CAUTION
!
Manufacturer 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 boiler. This policy is applicable
regardless of the cause of sooting.
Two (2) problems typically arise when power venting
any oil
fi red appliance:
1) Soot buildup may occur at an accelerated rate
on critical components of the boiler oil burner, e.g.
the primary control fl ame sensor ("cad cell"), the
burner head, and oil nozzle.
2) Severe damage may occur to external surfaces
of the structure in the event the boiler continually
produces a high level of smoke in the fl ue gases.
Excess smoke and soot can be produced for many rea-
sons, some of which cannot be successfully controlled
by the installer and the appliance manufacturer.
NOTE: Manufacturer recommends the use of a chi-
mney to vent residential oil boilers. 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 ven-
ting system with the boiler.
CHIMNEY EXHAUST VENT WITH OUTSIDE
COMBUSTION AIR USING A MODEL BAYRBF
BURNER
A) Use a UL and CSA approved outside air intake
hood and pipe, such as Z-Vent #2FAIGAL04 and a 4"
fresh air pipe system, installed and sealed in accor-
dance with local and national codes. 4" fl ex-alumi-
num pipe with gear clamps may be used. Schedule
40 PVC pipe and fi ttings or a UL or CSA approved
type B vent system may also be used.
B) Use adapter BAYDVK10AADPTA to connect to
the BAYRBF burner air intake.
C) Always keep intake air run to the minumum.
D) Maximum intake air run for 4 inch diameter,
fl exible or rigid type of venting = 100 equivalent feet.
E) Reduce intake air length by 10 feet for every 90°
elbow used and 5 feet for every 45° elbow used.
F) It is suggested that metallic air intake venting be
insulated with R7 (min) foil lined insulation a mini-
mum of 10 feet from air intake source. (This prevents
condensation or corrosion of intake air venting)
G) Use a UL and CSA approved type of intake air
vacuum breaker. This is to be installed in the same
room as the burner in the case of the air intake being
blocked. This device should be tested to prove that
the vacuum breaker balancer is set correctly and can
provide suffi cient air for combustion for the burner in
the event the intake air source is blocked. If the room
in which the burner is installed into cannot provide
enough air, or air quality is a concern, an additional
air inlet source must be provided to this room.
SIDEWALL DIRECT VENT (BALANCED FLUE)
COMBINATION FRESH AIR AND FLUE VENT
APPLICATIONS USING A BAYRBF OIL BURNER
Use only UL and CSA approved components for side
wall balanced fl ue, direct vent applications. These
components are shown in Table 5A and are available
from the boiler manufacturer.
See installation and maintenance instructions in
Appendix A at the end of this document for installing
balanced fl ue, direct vent components.
Notes:
1. Maximum balanced fl ue direct vent length is 20
feet.
2. Use 4" fresh air intake pipe.
3. For fl ue exhaust, use dual wall insulated 4" ID, 5"
OD pipe.
4. Minimum 1" clearance is required from fl ue gas
vent pipe to combustible material.
5. Zero-clearance is allowed at vent terminal only.
18-CG03D1-4
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