Draft Regulator; Blocked Vent Shut-Off (Bvso) - Carrier CBLAAA060120 Installation Instructions Manual

f. Allrunsof pipe should beasshort a spossible w ithas
few turns aspossible;
g. Seams should betightly j oined andchecked forleaks;
h. Thefluepipemust n otextend intothechimney butbe
flush withtheinside wail;
i. Thechimney must e xtend 0.9m(3')above thehighest
point w here itpasses t hrough a roof o fa building andat
least0.6m (2')higher t hananyportion of a building
within a horizontal distance o f3 m(10'). I t shall a lsobe
extended at least 1.5 m (5') abovethe highest
connected equipment fluecollar;
j. Check l ocal c odes f oranyvariances.
Factory Built Chimneys
The furnace may be used with an approved factory built
chimney. Refer to chimney manufacturer's instructions for
proper installation.
2.4.4 Draft Regulator
The draft regulator supplied with the furnace must be used
for proper functioning. Installation instructions are included
with the control.
2.4.5
Blocked vent shut-off (BVSO)
For chimney venting
All oil furnaces installed in Canada must have a blocked vent
shut-off.
It is imperative that this device be installed by a
qualified agency.
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 figure 1, 2 and 3, and the installation instructions
supplied with the blocked vent shut-off for installation and
wiring procedures. Disconnect the red wire from the limit
switch that comes from terminal #9 of the fan control board.
Connect this red wire to one of the red wires of the BVSO.
Connect the other red wire of the BVSO to the limit switch.
Connect the green wire of the BVSO to cabinet ground.
The blocked vent shut-off must be installed in the flue
between 2 inches and 12 inches from the furnace outlet and
between the furnace outlet and draft regulator (See figure 4).
FIRE, CARBON MONOXIDE POISONINC HAZARD
Failure to follow this warning could result in personal
injury, death, and/or property damage.
DO NOT reset the device or restart the furnace unless
the cause of the interruption has been identified and
corrected by a qualified agency. Ensure that the blocked
vent shut-off has been cleaned by a qualified agency
before placing into service.
For more details, refer to the instructions supplied with the
device itself, as well as section 4 of this manual.
FIRE, CARBON MONOXIDE POISONINC HAZARD
Failure to follow this warning could result in personal
injury, death, and/or property damage.
The blocked vent shut-off MUST be inspected and
maintained annually by a qualified agency.
It is also essential that the BVSO be maintained annually.
For more details please refer to the instructions supplied with
the device itself, as well as Section 4 of this Manual.
ELECTRICAL SHOCK HAZARD
Failure to follow this warning could result in personal
injury or death.
Disconnect electrical power supply to the furnace before
wiring the blocked vent shut-off.
CUT HAZARD
Failure to follow this caution may result in personal
injury.
Sheet metal parts may have sharp edges or burrs. Use
care and wear appropriate protective clothing, safety
glasses, and gloves when handling parts and servicing
furnaces.