Blocked Vent Shut-Off Device (Bvso) For Chimney Venting; Bvso Functional Test; Combustion Air Supply And Ventilation; Contaminated Combustion Air - Bryant OVM098 Installation Instructions Manual

applications. For such applications, combustion air shall not be drawn
from occupied spaces.
When the furnace is installed in a movable mobile home or in a
recreational vehicule, it shall be fixed on the floor or on the wall by
means of steal angles screwed at the bottom of each sides of the
furnace and the floor (or the wall). When moving, the furnace and the
burner shall be shut down and oil line valve closed.
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.
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
in section 4 of this Manual.

2.7.1 BVSO Functional Test

The purpose of the following test is only 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
WARNING
P
OISONOUS 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.
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.
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:
Exposure to the following substances:
In
2.8.2 Burner with Outdoor Combustion Air
Certain burners are designed to function with combustion air taken
directly from the outside. Follow the instructions provided with the
burner, the fresh-air supply kit or the side-wall venting kit.

2.9 OIL TANK

.
6
Consult Section 2.1.1 in this manual,
1. Commercial buildings;
2. Buildings with indoor pools;
3. Furnaces installed near chemical storage areas.
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.
Kit
WARNING
F .
IRE AND EXPLOSION HAZARD
Use only approved heating type oil in this furnace. DO NOT
USE waste oil, used motor oil, gasoline or kerosene.
Use of these will result in death, bodily injury and/or property
damage.
CAUTION
When a 0.75 USGPH or smaller nozzle is used, a 10 micron or finer
filter, must be installed on the oil supply line to the furnace inside the
building where the unit is located.
This is a requirement in order for the heat exchanger warranty to
remain in force.
Should this occur the chimney