Liquid line restrictions cause the evaporator, compressor, and condenser to be starved of refrigerant, causing performance problems in refrigeration systems.

Controlling the head pressure helps maintain pressure drop across the metering device and prevents the evaporator from freezing, in the case of air conditioning, and excessive freezing in refrigeration systems.

The Hydraulic Institute's new on-demand courses are designed to support the pump and fluid-handling industry with workforce development and onboarding resources.

The proper design, installation, and maintenance of these valves is vital for the safe operation of R-744 refrigeration systems, especially in industrial and commercial applications.

Harper General Contractors employees over 200 employees and does business in South Carolina, North Carolina, Georgia, Tennessee, and Virginia. Its average project size is between $2 million and $12 million, with capabilities for projects up to $100 million.

Building operators want people back, and they’re investing in IAQ upgrades to help ease occupant concerns.

Pure Air Control Services recently completed an IAQ project that helped fans and hockey players at the Stanley Cup Playoffs breathe easy at Tampa Bay’s Amalie Arena.

The pandemic has caused IAQ to become a big concern, which has led industry experts to recommend increasing ventilation and upgrading filtration for commercial buildings.

IAQ has become a very important topic as the COVID-19 global pandemic has continued to evolve.

Whether indoor air is clean or laden with pathogens isn’t usually something you can see with the naked eye. Except at Greenheck’s AHR Expo booth, where visitors were treated to the full VR experience.

Parker Hannifin Corp. addressed two of today’s most pressing HVACR issues ― a labor shortage and pandemic-fueled concerns about indoor air quality (IAQ) ― during the recent AHR Expo.

The use of UV-C in HVAC systems has proven to be an effective way to minimize the threat of volatile organic compounds (VOCs), small particles, and other airborne pathogens commonly found in health care environments.

In the last decade, UV-C installation has really become the standard in the healthcare sector, given its ability to be easily retrofitted, save money and energy, and inactivate those infection-causing microorganisms on HVAC surfaces and airstreams.

The selected projects, which have not been finalized, would be the first awards coming out of DOE’s use of the Defense Production Act (DPA) to increase domestic production of five clean energy technologies, including electric heat pumps.

The innovations of the hard-wired EV Premium Series align with the Brilliance Awards’ theme of automation technology.

The full Torus line is now available in sizes ranging from 3,000 Btuh to 4 million Btuh, making the units ideal for a wide array of applications.

Allied Air Enterprises is planning to raise prices on residential products by as much as 10% and on commercial products by as much as 12%.

Record heat waves are driving up energy costs, but what can the HVAC industry do to mitigate some of those expenses?

Among the various HVAC insulation options available, elastomeric closed-cell foam duct insulation (closed-cell foam) solutions stand out for providing safe, sustainable, high-performance thermal and acoustic insulation while resisting moisture and improving overall indoor air quality (IAQ).

Early on in CHP’s $9-million project, the team decided to make a pretty big change: an overhaul of the HVAC design.

"Baking the cost of a humidifier or dehumidifier into a full system offering is the trend today,” said Tom Ruse.

It has now been two years since the pandemic brought IAQ to the forefront of everyone’s minds. Manufacturers are stepping up with an array of products to clean and monitor the air people breathe.

Homeowners are increasingly paying attention to improving their indoor air quality, and dehumidification is a big part of the IAQ equation.

A big part of the growth cycle of the cannabis plant is deeply rooted in the ability of the plant to absorb and rid itself of water vapor, so we now add a D to HVAC for dehumidification.

Following are several of the latest dehumidification products on the market, representing residential and industrial applications alike.

The decarbonization trend has spurred the development of new cooling equipment technologies that often use humidity control to increase efficiency and reduce emissions.

Between health benefits, energy savings, and overall improved air quality, whole-home humidification systems are an easy sell for contractors.

The manufacturers of HVAC products for indoor farming say their equipment can help optimize growers’ crop yields.

Carrier’s newest portfolio includes an entire lineup of ductless systems; the company is expanding offerings, incorporating new platforms and technologies, and integrating R-454B, Carrier’s refrigerant of choice.

With Zonefirst's Internet of Zoning (IoZ) technology, the Bliss system enables homeowners to manage both lighting and temperature settings through an app.

Matrix offers a combination of performance, durability and value. Boasting a +93% thermal efficiency rating, Matrix is a solution for today's energy-efficient light commercial and commercial applications.

Utilizing the company’s Internet of Zoning (IoZ) technology, the Bliss Zoning System, a new home climate control system, enables homeowners to easily manage both lighting and temperature settings through a single, user-friendly app, allowing for customized comfort in every zone. 

Danfoss has released a new compressor for the North American market.

Allied Air Enterprises announces the new 97G2E Two-Stage Constant Torque Gas Furnace with 97% AFUE Efficiency under the Concord and Ducane brands. 

MegaPress Transition Couplings can be used to transition between galvanized or carbon steel pipe and copper, PEX, or stainless steel in seconds.

The Sensedge Go monitors up to 14 indoor air quality and environmental parameters, providing comprehensive insights into all aspects of the built environment.

Energy Star-certified buildings use an average of 35% less energy and are responsible for 35% less carbon dioxide emissions than typical buildings.

Allied Air is set to launch an extensive range of equipment that uses the refrigerant R-454B, which has a GWP of 466, about 78% lower than that of R-410A.

The heat pumps Armstrong plans to make at the new facility in Three Rivers, Michigan, will particularly benefit manufacturers in the food and beverage, pharmaceutical, paper, and personal care products industries, the company said.

Mid-City Supply invested $1.6 million in the renovation of its Michigan City, Indiana, location, expanding the new building to 18,600 square feet from its original 10,500 square feet, the company said.

The survey, which included responses from over 200 CEOs, CFOs, and CSOs across various industries in July 2024, also highlighted the impact of government incentives on sustainability plans.

Future Fuels Symposium 2023 on Fossil Fuel Alternatives will discuss the benefits of hydrogen blends and bio-fuels and related solutions, including a new low nitrogen oxides (NOx) technology and UL-approved burners capable of firing hydrogen blends designed to reduce greenhouse gas emissions.

When considering radiant heating options, installers and homeowners are learning that using both hydronic and electric sources may be the best of both worlds.

Hydronic zone systems have proven themselves to be a sustainable heating and cooling option with a longer lifespan, and potential for cost savings.

Emerson announced a new platform of AWEF-compliant condensing units for walk-in coolers to meet the DOE rule.

New HVACR cooling innovations promise to enhance sustainability and improve energy efficiency. 

New report finds that GHGs can be reduced significantly through the use of reclaimed refrigerant versus producing and using newly manufactured virgin refrigerant. 

In the sixth installment of this series, we ask if A2L refrigerants are as flammable as propane or hydrocarbons.

New cooling technologies that promise to revolutionize the way climate control is approached are emerging in the HVACR industry.

The EERS required Indiana’s electric utilities to cut energy delivery by an average of 2 percent annually, as well as providing home energy assessments, low-income weatherization, and efficiency rebates for businesses, homeowners, and schools. In 2014, Indiana legislature passed SEA 340 to cancel the EERS. Then Gov. Mike Pence did not veto or sign the bill, so it became law, and Indiana became the first state to repeal its energy efficiency standard.