Blocked Vent Shut-Off Device (Bvso) For Chimney Venting; Combustion Air Supply And Ventilation7 - Dettson AMP Série Guide D'installation Et Manuel Du Propriétaire

2.6.1 Masonry chimney
This furnace can be vented into an existing masonry chimney.
However, the unit must not be vented into a chimney into
which a solid fuel burning furnace is already being vented.
Before venting this furnace into a chimney, its condition must
be checked and repairs made, if necessary. Also, the chimney
lining and dimensions must conform to local and national
codes.
2.6.2 Factory Built Chimneys
Oil fired furnaces are approved for use with "L" type vents.
The unit may also be used with an approved chimney of
proper dimensions and temperature ratings as specified in the
installation code. Refer to chimney manufacturer's instructions
for proper installation.
2.6.3 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.
2.6.4 Side-wall Venting
The heating unit is approved for side-wall venting. This system
includes model VTK-3 / KLAVT0201DET side-wall venter and
a 5" insulated vent pipe, model IFV5 / KLAFVxx01DET. Refer
to the installation instructions provided with the venting
system.
2.7 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.
Refer to 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.
2.7.1 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.
2.8 COMBUSTION AIR SUPPLY
AND VENTILATION
Poisonous carbon monoxide gas hazard.
Comply with NFPA 31 (U.S.) and CSA B139 (Canada)
standards for the
Equipment and applicable provisions of local building
codes to provide combustion and ventilation air.
Failure to provide
ventilation air can result in death, bodily injury and/or
property damage.
Oil furnaces must
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 2.2 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 less
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.
2.8.1 Contaminated Combustion Air
Installations in certain areas or types of structures will
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;
c. Furnaces installed near chemical storage areas.
Exposure to the following 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;
l. Antistatic fabric softeners for clothes dryers;
m. Acid based masonry cleaning materials.
7
WARNING
installation of Oil
adequate combustion
have an adequate supply of
Burning
and