DDC Outside Air Economizer System - Outside louvers allow the DDC control system to open dampers and introduce fresh air into the building. Building automation system, or the energy management system as it is sometimes called, monitors outside air temperature and humidity and based on a calculation and opens the outside air dampers when this calculation determines a precise set point. (more…)
HVAC Indoor Air Quality - Indoor air quality is very important to our health. There are not many people who worry about indoor air quality unless they have asthma or another respiratory problem that can easily be aggravated by indoor pollutants or bad indoor air quality. If we examine the things in our air, we are surprised by the things in the air which can have a dramatic effect on our health. People who suffer from respiratory health problems usually see increased health when they institute a good indoor air quality program that can include installing electronic air cleaners and ultra-violet air cleaners along with a good air filtration system. (more…)
Filters in a Large Commercial Unit
HVAC Indoor Air Quality Solutions - There are many different types of HVAC air filters. The most common type of HVAC air filters is the fiberglass disposable filter that you buy at most hardware or retail stores. Other types of HVAC air filters include the metal or plastic fiber type filters, which are washable.
These HVAC air filters save you money because they are washable, but some are not as efficient at filtering the air as the disposable kind, so they are not as good for HVAC indoor air quality as other alternatives. (more…)
Proper ventilation is necessary for good indoor air quality
IAQ Ventilation Basics - Indoor air pollution can be reduced and possibly eliminated by taking corrective action using a defined plan. The first step is called an IAQ audit and often requires the services of both an HVAC Test and Balance (TAB) Company and an industrial hygienist.
First of all, it must be determined where the source of pollution is coming from and then steps taken to eliminate it. Vapor barriers and foundation sealant can often be the source of indoor air pollution but other areas need to be studied to ensure they are not allowing pollution into the structure. (more…)
