HVAC/R

What Is Evaporative Cooling?

Nearly half of residential energy costs are from HVAC units. Evaporative cooling can be less expensive to purchase and typically require less energy that other types of refrigeration. This technology has been commonly used in commercial settings like industrial kitchens, laundries, dry cleaners, greenhouses, loading docks, warehouses, factories, construction sites, workshops, and kennels. HVAC technician […]

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What Is Variable Refrigerant Flow?

Variable refrigerant flow (VRF) system installations are increasing as the heating and cooling source in hotels, schools, and multifamily residential buildings. The VRF industry is expected to grow by 10.8 percent from 2016 to 2021. 1 What is VRF and why is its popularity increasing? Introduction to Variable Refrigerant Flow Unlike traditional central air conditioners, […]

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Air Balancing an HVAC System

There are regulations for many industries including HVAC. Air balancing an HVAC system is one of them. Let’s examine the importance of air balancing in HVAC. What is air balancing? Simply put, air balancing is a process of checking that an HVAC system is running efficiently enough for the occupants to be comfortable. There are […]

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What Is Geothermal HVAC and How Does It Work?

When it comes to environmentally friendly HVAC systems, geothermal heat pumps are a promising and increasingly popular option. Baby boomer customers are attracted to the energy savings geothermal HVAC systems offer. Millennials consider going geothermal because it’s better for the planet. 1 In fact, geothermal is expected to supply 10 to 20 percent of the […]

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HVAC Professional Conduct and Code of Ethics

As an HVAC technician, you obviously need to have technical expertise. You may also need good “soft” skills like interpersonal skills, especially when you work closely with customers. Depending on your range of responsibilities, business acumen and administrative knowledge may be vital, too. Another aspect that is very important in HVAC is overall professional ethics. […]

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What is Retro-Commissioning in HVAC?

HVAC systems can be quite complex and need to be carefully adjusted as well as regularly maintained to work at maximum capacity. Commissioning in HVAC is the process of ensuring that commercial HVAC systems work as intended.  There are  three types of commissioning: the initial commissioning, retro-commissioning, and re-commissioning: Commissioning applies to an HVAC system […]

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The Ultimate List of HVAC/R Trade Associations

Membership in HVAC/R trade associations represent various professionals in the industry allowing them with opportunities for networking, staying updated on current trends, etc. Some associations also offer EPA certification, a requirement for any technician working with refrigerants. 1 Learn about some of the HVAC/R trade associations in this article. Guide to HVAC/R Trade Associations 1. […]

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National Inspection Testing Certifications (NITC) for HVAC/R Techs

In addition to training and experience, HVAC/R technicians who have HVAC/R certifications look good to employers as well as customers because they show that you keep up with the latest developments in the industry. The National Inspection Testing and Certification Corporation (NITC) is a third party provider that tests and certifies professionals in some skilled […]

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What Is an HVAC Compressor?

We’ve all appreciated air conditioning on a sweltering summer day, but generally only those who have taken HVAC classes know how the units work. Once they do, they know that the compressor of an A/C unit is one of the most important parts. 1 What Does a Compressor Do? By definition, the word “compress” means […]

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