On any commercial or industrial property, HVAC systems, i.e. heating, ventilation and air conditioning appliances, consume vast amounts of energy and contribute to over 20 percent of the overall cost of operation. They are high maintenance, given how their mechanism consists of exhaust fans, blowers, filters, ducts and other parts performing similar functions of letting contaminated air out and allowing fresh air inside.
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Fitted to the roof, a rooftop unit (RTU) is an air handler, i.e., it cleans the indoor air and provides heating and cooling to the building. With a capacity ranging from three to 40 tons (and more, depending on which custom model one chooses), this HVAC system generally lasts about 15 years. The RTU is also called a packaged system because the components mentioned above, such as fans and air compressors, are all “packaged” together in one machine.
Unlike the latest RTUs, older models are not energy efficient because they use far more electricity to function. It’s important to replace these systems quickly because the older they get, the more they add to the power bills.
As the name suggests, chillers are HVAC systems that cool a building. They transfer heat outside with the help of a refrigerant. Though a chiller traditionally uses up a lot of energy and proves expensive, a variable frequency drive can improve its efficiency through:
Just like RTUs, newer models of chillers too are designed to be far more efficient in terms of energy usage and costs. When it comes to transferring heat out per unit of energy input, high-efficiency electric chillers are an ideal option compared to absorption chillers.
Energy-efficient alternatives in saving costs and reducing electricity consumption and emissions serve a beneficial impact for over 20 years.