Now Is the Perfect Time to Upgrade an HVAC System
Section 179 of the 2020 Cares Act Just what is section 179 of the tax code and what does it mean for HVAC in 2020? Section 179 which was enacted in 2008 is more beneficial to small businesses than ever. Known as the SUV Tax Loophole, it adapted in subsequent years to adjust tax deductions […]
Understanding DOAS and comfort cooling differences
While indoor air quality and ventilation have been major focuses of the HVAC industry for a long time, many misconceptions remain about what these applications require in terms of equipment and design. Today’s post will parse some of the most common questions about DOAS and comfort cooling equipment. Purpose of DOAS A dedicated outside air […]
What is DOAS?
With Independence Day weekend approaching Americans are making plans to celebrate with cookouts, swimming, and other outdoors activities. These simple pleasures become even sweeter knowing that, when outside, we are breathing clean, fresh air. What some don’t know is that when we return to work, we are often returning to buildings that have been consciously […]
The Natural Disinfectant of UV-C Light
Due in part to recent pandemics, ultraviolet light is making a revival in the area of disinfecting air and surfaces in HVAC applications. Using UV-C light as a disinfectant is hardly a new concept. As early as 1878 Arthur Downes and Thomas P. Blunt, published a paper describing the sterilization of bacteria exposed to short-wavelength […]
BACnet Building Automation and Control Network
BACnet (Building Automation and Control Network), is the communications protocol that defines communication services used between building control systems and building automation end-devices. The protocol displays how data is represented and moved between BACnet nodes on the network and the services used to move it. For example, by sharing sensors and data, BACnet gives our […]
Recovering Energy from Class 2 Exhaust Air
The Problem Providing a healthy environment must be the top priority for any air conditioning design. This can be difficult though, especially in spaces that generate less-than-ideal breathing conditions. Nail salons, health clubs, and bathrooms are just a few examples of spaces where processes or people taint the air with undesirable chemicals or odors. In […]
Industrial Grow Room Units
As cannabis becomes legalized or decriminalized throughout the United States, Grow Room units are in high demand. Medical applications of the plant alone have led to further community acceptance and therefore more facilities have emerged for growth and distribution. In order for this up-and-coming industry to thrive, HVAC companies have developed specialized equipment that promotes […]
Retrofitting Commercial HVAC Units
Retrofitting Major Commercial HVAC Brands Millions of HVAC systems are reaching replacement age. The life cycle for most will pass several times over the life of commercial, industrial and institutional structures. Estimates show that there are over 5 million buildings available for retrofit HVAC upgrades. While 70% of commercial buildings built prior to 1980 have […]
All about packaged units in air conditioning
Since the invention of the air conditioner in 1902, engineers have developed various ways of handling the HVAC process. The evaporator and condenser sections are the two major components of Heating, Ventilation and Air Conditioning (HVAC). This is the case as it applies to Direct Expansion (DX) type systems. At the same time, the indoor […]
What is a Heat Pump and how does it work?
A heat pump represents a growing segment of the HVAC industry. In practical terms, it is a reversal of how the air conditioning system works. While air conditioners are used to cool air; a heat pump can be used to cool or heat the air. This is especially true conditions are in place for this […]
The Thermal Expansion Valve (TXV) Explained
What you need to know about refrigerant flow The Thermal Expansion Valve (TXV) is an important piece of equipment in the HVAC industry. The valve is used to control the amount of refrigerant released to the evaporator section. In this way it controls the difference between superheat and the current refrigerant temperature at the evaporator […]
Commercial vs Residential HVAC Units
Learn the similarities and differences between commercial and residential units Commercial and Residential HVAC units share many similarities but contain many differences as well. While some HVAC manufacturing companies produce units for both markets, others specialize in one or the other. The biggest differences have to do with size, and also whether the unit is […]