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3.
The Blocked Vent Shut-Off (BVSO) is installed
according to instructions (for chimney venting);
4.
The oil supply valve is open;
5.
The flame observation door (located in front of the unit)
is well closed;
6.
The burner ''Reset'' button is well pushed in or re-
armed;
7.
The preliminary air adjustments on the burner comply
with the technical specifications in this manual;
8.
The blower speed adjustments are appropriate and
according to the specifications in this manual;
9.
The thermostat of the room is in the heating mode and
is set higher than the ambient temperature.
To start the unit, turn the main electrical switch on.
CAUTION
Do not tamper with the unit or its controls. Call a
qualified service technician.
3.2.2
Purging the oil line
1.
A 10-micron (or less) oil filter should be installed as
closely to the burner as possible with all oil burners, but
it is essential for burners with a low firing rate. We
recommend the use of a low pressure drop oil filter with
a capacity greater than that of the fuel pump;
2.
On a new installation, the air trapped in the oil line
leading from the tank to the nozzle must be thoroughly
purged in order to prevent excessive after drip. The oil
pump is equipped with a special fitting that facilitates the
purging of any air between it and the tank. The proper
procedure for performing this operation is as follows:
a.
Place a piece of 1/4" diameter clear plastic tubing
over the purge fitting on the oil pump;
b.
Start the oil burner, then open the purge fitting and
allow the burner to run until the purge tube is
completely free of air bubbles;
c.
At this point tighten the purge fitting, which will
allow the oil to run to the nozzle and fire the burner.
If the purging takes longer than 15 seconds and no
flame has been established the burner will stop.
Push the reset button on top of the Primary Control
to restart the burner.
For detailed information on the operation of the Primary
Control please refer to the instructions included with the
furnace or the burner.
3.2.3
Combustion check
IMPORTANT:
The heat exchanger metal surfaces may
have oil and the baffle insulation also contains binders.
These products will burn or evaporate when the unit
operates for the first time. Because of this, the smoke
reading may be inexact during the first minutes of operation.
Therefore, the unit must operate during at least 60 minutes
before taking any readings to adjust the combustion quality.
Let the unit cool down before making any adjustments.
IMPORTANT: The combustion check verification MUST be
performed after the nozzle replacement or the burner
cleaning.
After
these
parameters are necessarily modified. Refer also to the
burner instruction manual.
manipulations,
the
combustion
In order to obtain optimum performance from the oil
burner, the following set-up procedures must be
followed by referring to the Technical Specifications,
Table 2 in this manual:
1.
A test kit to measure the smoke, flue draft and over-fire
pressure should be used in order to obtain the proper air
band setting. Although all of the above measurements
are required for optimum set up and efficiency, the most
important reading that must be taken is the smoke
number in the flue pipe, downstream from the regulator;
2.
The proper smoke number, as established by way of
engineering tests, is between 0 and 1. This degree of
smoke emission is commonly referred to as a "trace". It
is recommended that a Bacharach True Spot Smoke
Test kit or equivalent be used;
3.
Follow the next steps to do the combustion check
verification:
a.
Drill a minimum proper diameter (about 9/32") test
hole in the flue pipe, approximately 18 inches from
the furnace breech;
b.
From a cold start, let the unit operate for about 5
minutes;
c.
Set the burner air setting until you have between 0
and 1 on the Bacharach Scale (or a "trace");
d.
Take a CO
2
the smoke reading was taken and make note of it;
e.
Adjust the burner air setting to obtain a CO
1.5% lower (or a O
reading associated with the "trace" of smoke;
f.
This method of adjusting the burner will result in
clean
combustion
between 0 and a trace) and ensure the proper
functioning of the system.
4.
A barometric draft regulator, supplied with the furnace,
must be installed, in order to ensure proper draft
through the furnace. The barometric damper must be
mounted with the hinge pins in a horizontal position and
the face of the damper vertical for proper functioning,
(see instructions included with damper). After the
furnace has been firing for at least five minutes, the draft
regulator should be set to between -0.025" W.C. and -
0.035" W.C.;
5.
The over fire pressure that is taken through the
observation door located in the centre of the front panel
above the burner is a measurement that is necessary to
determine if there is a blockage in the heat exchanger or
the
flue
pipe.
Specifications in this manual for over fire pressure
values. A high pressure condition may be caused by
excessive combustion air due to the air band being too
wide open or a lack of flue draft (chimney effect) or
some other blockage, such as soot in the secondary
section of the heat exchanger or the use of an oversize
nozzle input or high pressure pump;
6.
After all the set up procedures mentioned above have
been completed, the burner should be fired and an
inspection mirror should be used to observe the flame
pattern at the tip of the nozzle. Any irregularities such as
burning to one side or pulsating flame patterns should
be corrected by changing the nozzle.
3.2.4
Fan adjustment check
This furnace is equipped with a 4 speed direct drive motor to
8
sample at the same test location where
reading 2.0% higher) than the
2
(Bacharach
smoke
Please
refer
to
the
reading
2
scale
Technical
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