Pensotti Heatline Quatech Series
20
The adjuster is a device that will reduce excessive draft and draft regulator flow. It is especially
helpful with powered draft devices and excessive chimney draft situations. Both situations can
cause flame problems, condensation, and chimney connector damage.
•
Start by cutting a piece of sheet metal as shown in
'C'
to form the adjuster.
•
In drawing
'A'
, start by making a cut about 1/3 diameter through the fluepipe.
•
Insert the adjuster into the fluepipe, start the burner and set breeching draft for -.02" W.C.
•
When adjustment is complete, scribe adjuster with line around pipe,
'B'
.
•
Make a second line about 1" above pipe radius line.
•
Trim off the excess stock as shown in 'C' and then slit the stock between the lines vertically.
Bend the segments in alternate directions.
•
Replace the adjuster, start the burner and verify settings taken earlier.
•
If unchanged, bend tabs against fluepipe, drawing
'D'
, and anchor in place with sheet metal
screws. Seal any joints with silicone and the adjuster is completed.
The adjuster will reduce the velocity and strength of the draft currents and allow you to make a
permanent and safe adjuster that cannot be adjusted again.
NOTE: Before locking the adjuster in its final position, make sure that the final firing rate has
been set and that all draft settings have been made and are final.
Roof Clearances
Standard roof clearances apply. It is the responsibility of the installer to ensure they are adequate.
Mechanical Draft Applications
When using Pensotti Heatline Quatech Series boilers in a mechanical draft application the
following basic guidelines should be observed according to the venting system in use. In addition,
it is strongly recommended that the applicable precautions for Natural Draft Applications be used.
In addition to all of the pertinent information regarding Natural Draft Applications whenever a
Mechanical Draft Application is used it should be installed using the following instructions and
Figure 10
as reference;
•
The terminating vent hood, and the inlet air hood are on the same wall surface, and are on
the wall opposite from the prevailing wind wall, if possible.
•
All of the air for combustion to the burner is supplied directly from outside of the building
or structure.
•
Not less than 12" above the total accumulated snow and level grade.
•
Not less than 4' horizontally or below any window, door or air inlet, and also not more than
1' above any of these openings.
•
Not less than 3' above a powered air inlet device that is within 10'.
•
Not less than 2' from any other building.
•
At least 3' from any inside corner of a building.
