Air For Combustion - International comfort products OLB6-R097-130-5 Installation Instructions And Homeowner's Manual

10. While pushing down gently on the top of the stabiliser shroud,
install the 3 stainless steel 2" screws provided with the kit to
secure the back of the shroud to the wall. Do not overtighten the
screws or it will distort the stabiliser shroud. The screws will not
be necessary in a concrete or block wall as the mortar can
provide positive positioning.
11. Tighten the clamp on the wall plate to secure the terminal in
position.
12. Apply more caulking all around the seam where the stabiliser
shroud meets the wall. It is important to have a good seal to
prevent water from entering the dwelling (see figure #1.14). A
considerable amount of caulking may be necessary for irregular
wall surfaces such as lapped siding.
13. Install the end cone and replace the two mounting screws.
14. Support the vent and intake air piping so that a 1/4" to 1/2"
downward slope (toward the outside) results for proper drainage
out the terminal body.
Connection of combustion air piping to the terminal - DV-2000™:
Refer to Part 1, section 5.3, Outdoor Combustion Air – Side-wall
Venting, DV -2000™ for a complete description.
5)

AIR FOR COMBUSTION

WARNING G WARNIN
!
Poison carbon monoxide gas hazard.
Comply with ANSI/NFPA (in U.S.) or CSA (in
Canada) standard for the installation of Oil Burning
Equipment and applicable provision of local
building codes to
ventilation air.
Failure to provide adequate combustion and
ventilation air can result in personal injury and/or
death.
5.1) General:
Oil furnaces must have an adequate supply of combustion air. It is
common practice to assume that older homes have sufficient
infiltration to accommodate the combustion air requirement for the
furnace. However, home improvements such as new windows, doors,
and weather stripping have dramatically reduced the volume of air
leakage into the home.
Home air exhausters are common. Bathroom and kitchen fans, power
vented clothes dryers, and water heaters all tend to create a negative
pressure in the home. Should this occur, the chimney become less
and less effective and can easily downdraft.
Heat recovery ventilation (HRV) systems are gaining in popularity. The
HRVs a re not designed to supply combustion air. If not properly
balanced, a serious negative pressure condition could develop in the
dwelling.
5.2) Contaminated Combustion Air :
Installation in certain areas or types of structures will increase the
exposure to chemicals or Halogens which may harm the furnace.
12
provide combustion
These instances will require that only outside air for combustion.
The following areas or types of structures may contain or have
exposure to the substances listed below. The installation must be
evaluated carefully as it may be necessary to provide outside air for
combustion.
a. Commercial building.
b. Building with indoor pools.
c. Furnaces installed near chemical storage areas.
Exposure to these substances:
a. Permanent wave solutions for hair.
b. Chlorinated w axes and cleaners.
c. Chlorine based swimming pool chemicals.
d. Water softening chemicals.
e. De-icing salts or chemicals.
f. Carbon tetrachloride.
g. Halogen type refrigerants.
h. Cleaning solvent (such as perchloroethylene).
i. Printing inks, paint removers, varnishes, etc..
j. Hydrochloric acid.
k. Solvent cements and glues.
l. Antistatic fabric softeners for clothes dryers.
m. Masonery acid washing materials.
5.3) Ducted outdoor combustion air:
Three burners are set up to duct outside combustion air directly to the
burner; the Beckett AFII and Riello 40-BF for side-wall venting using
the new DV -2000™ venting system, and the Beckett AFG for use with
conventional chimney venting. The Riello 40-F is not suitable for
direct-connected outdoor air.
The use of ducted outside combustion air is mandatory
for the DV-2000™ venting system. This system
and
operates on a balanced flue principle and will not
function properly if the combustion air piping is not
attached and sealed at all connections between the
vent terminal and burner inlet.
Outdoor combustion air kit – chimney venting:
The following kit has been certified for use on the appliance. The
component kits contain an important safety feature, namely a vacuum
relief valve, or VRV. During normal operation the burner aspirates
outdoor air. If the intake terminal ever becomes partially blocked or
fully blocked from ice or snow etc., the VRV will open to allow a
proportion of air from the dwelling to enter the burner thus maintaining
proper combustion. Once the blockage is removed, the VRV will close
and the burner will draw all air from the outdoors again:
CAS-2B Components (except air duct) for the Beckett AFG burner.
The kit includes the intake terminal, vacuum relief valve (VRV) and
special air boot connection with integral air adjustment means for the
AFG burner. The CAS-2B can be used with 4" galvanised air duct or
with 4" flexible aluminium air duct. It is recommended that the metallic
air ducting material should be insulated from the air intake up to 5 feet
from the burner to avoid condensation on the outside of the intake
pipe.
CAD-1 Air duct kit consists of 25 feet of insulated UL/ULC Listed
Class 1 air duct, and two 4" steel band clamps. The duct incorporates
a corrugated flexible aluminium core, surrounded by fibreglass
insulation covered with a vinyl vapour barrier.
CAUTION