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Before venting t hisfurnace intoa chimney, itscondition must
bechecked andrepairs m ade, ifnecessary. Also, t hechimney
lininganddimensions mustconform to localandnational
codes.
2.5.2 FACTORY BUILT CHIMNEYS
Oil f ired furnaces areapproved foruse with"L"type vents. The
unitmayalsobeusedwithanapproved chimney of proper
dimensions and temperature ratingsas specified in the
installation code. R efer t ochimney manufacturer's
instructions
forproper installation.
2.5.3
DRAFT REGULATOR
It is recommended
that a draft regulator be installed in cases
where the draft is either high or variable
due to external
conditions. Follow the instructions provided with the regulator.
2.5.4
SIDE-WALL
VENTING
The heating unit is approved for side-walt venting. This system
is comprised of a model VTK-54 / VTK-098 / KLAVT0101DET
side-wall venter and a 4" insulated vent pipe, model IFV-410 /
IFV098-10
/
KLAFV0101DET,
IFV-420
/
IFV098-20
/
KLAFV0201DET.
Refer to the installation instructions provided
with the venting system.
2.6
BLOCKED VENT SHUT-OFF DEVICE
(BVSO) FOR CHIMNEY VENTING
CAUTION
It is imperative that this device be installed by a qualified service
technician.
A positive pressure venting system (Sealed Combustion System
or
Direct Vent)
MUST
NOT use
the
BVSO.
Follow
the
instructions supplied with the venting system.
This device is designed to detect the insufficient evacuation of
combustion gases in the event of a vent blockage. In such a
case the thermal switch will shut down the oil burner. The
device will then need to be re-armed MANUALLY.
--Referto the detailed instructions and wiring diagrams supplied
with the BVSO for the installation and wiring procedures.
The
length of wires supplied with the unit is such that the safety
device
must
be installed
between
the flue outlet
of the
appliance
and
the
draft
regulator,
as
indicated
in
the
instructions.
It is also essential that the BVSO be maintained annually. For
more details refer to the instructions
supplied with the device
itself, as well as Section 3 of this Manual.
2.6.1
BVSO PERFORMANCE TEST
The purpose of the following test is to check that the electrical
outlet on the furnace, designated to the BVSO, is functional.
1.
Start up the burner;
2.
Remove the three-pole plug from the BVSO outlet on the
furnace;
3.
The burner must shut-off immediately,
while the blower
continues to run to the end of the cool-down cycle.
If the test is not in line with the above, call a QUALIFIED
SERVICE TECHNICIAN.
2.7
COMBUSTION
AIR SUPPLY
AND VENTILATION
Poisonous carbon monoxide gas hazard.
Comply
with NFPA 31 (U.S.) and CSA B139 (Canada)
standards
for
the
installation
of
Oil
Burning
Equipment and applicable
provisions of local building
codes to provide combustion and ventilation air.
Failure
to
provide
adequate
combustion
and
ventilation air can result in death, bodily injury and/or
property damage.
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
drastically
reduced
the
volume
of air
infiltration into the home.
Refer
to
oil
furnace
installation
codes
relative
to
combustion
and
ventilation
air requirements.
Consult
Section 2.1 in this manual, specifically for units installed in
an enclosed space.
Home air exhausters are common. Bathroom and kitchen
fans, power vented clothes dryers and water heaters all
tend to create a negative pressure condition in the home.
Should this occur the chimney becomes
less and tess
effective
and
can easily
downdraft.
In certain
cases,
mechanically supplied air, by way of a blower, interlocked
with the unit, is necessary. It is the installer's responsibility
to check that.
2.7.1
CONTAMINATED COMBUSTION AIR
Installations
in certain areas or types of structures
wilt
increase the exposure to chemicals or halogens that may
harm the furnace. These conditions will require that only
outside air be used for combustion.
The following areas or types of structures may contain or
be exposed
to certain substances,
potentially
requiring
outside air for combustion:
a.
Commercial buildings;
b.
Buildings with indoor pools;
o
Furnaces installed near chemical storage areas.
Exposure to the followinq substances:
a.
Permanent wave chemicals for hair;
b.
Chlorinated waxes 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 solvents (such as perchloroethylene);
i.
Printing inks, paint removers, varnishes, etc. ;
j.
Hydrochloric acid;
k.
Solvent based glue;
I.
Antistatic fabric softeners for clothes dryers;
m. Acid based masonry cleaning materials.
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