A ductwork test using duct pressure drop calculator software, such as the DOLPHIN ductwork system program, is the most dependable and cost-effective way to find out.

1. How
Ducts Work in Buildings?

2. •Your duct system
•What can possibly go wrong?
•How do you know if your duct system is working well?
•When should you test your ductwork?
KEYPOINT

3. Your duct system
In most small commercial and
residential central HVAC units,
conditioned air is delivered to
each rooma in the building via
supply ducts and returned to the
air conditioner or furnace via
return ducts. The condition of
both sections of ductwork is
critical to the overall efficiency
of your HVAC system.

4. What can possibly go wrong?
Air vents through defectively
connected or deteriorated
ducts in some properties
frequently result in little
conditioned air reaching your
work or living space, leaving
the space either too cold or too
warm. If the return-duct system
is leaking, stale and polluted
air may be drawn in and
distributed throughout the
building.

5. How do you know if your duct system is working well?
A ductwork test using duct
pressure drop calculator software,
such as the DOLPHIN ductwork
system program, is the most
dependable and cost-effective way
to find out. Ductwork testing is the
process of using a calibrated
mechanical solution to measure
the amount of airflow lost through
the duct system, particularly when
it reaches normal operating
pressure.

6. When should you test your ductwork?
When installing a new HVAC unit, ductwork testing is recommended. If the
existing duct unit is inefficient or leaky before a new unit is installed, it will
remain so after the new unit is installed – unless the ductworks are
thoroughly tested and sealed by an experienced professional.

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