In their article entitled “Do OA Economizers Make ‘Cents’ in Hospitals?” Koenigshofer and Roberts detail the costs and savings of utilizing outside air economizers in hospital ventilation systems. They concluded that these systems do not make “cents” in hospitals. The findings have major implications for building codes throughout the U.S.
You might wonder, “Why can’t I just use a duct calculator and tape measure to identify duct repairs?” You could, but that means making a lot of assumptions and wasting valuable time.
Airflow is a general term that’s easy to misinterpret. When I first learned about airflow, I had to classify it into four values that made sense to me. The easiest options are the measurement location or source of the airflow reading.
he device allows for control of the air velocity in ventilation ducts and air conditioning systems. Available for duct mount as well as with remote sensing probe, it measures air velocity up to 20 meters per second.
The National Air Duct Cleaners Association (NADCA) offers two certifications; the Air Systems Cleaning Specialist (ASCS) certification and the Certified Ventilation Inspector (CVI) certification — credentials that are internationally recognized and known for showcasing an individual's enhanced knowledge and skills related to HVAC system hygiene.
As a stand-alone, or paired with Panasonic’s multi-speed exhaust fans, the new WhisperFresh Select brings fresh, filtered supply air from outdoors into the home and helps create balanced ventilation in tightly built, energy-efficient dwellings.
This system is designed to deliver IAQ by providing dedicated moisture control, fresh air mechanical ventilation, and air filtration to the entire home.
This chassis provides on-demand ventilation or constant outside air conditioning to meet code requirements without additional field installed ductwork or equipment.
When you think of first responders, HVACR contractors don’t usually come to mind. However, they are first on the scene in the dead of winter with negative wind chills for no heat calls or in the sweltering summer heat for no air calls.
