There are varying types of symptoms that can occur when a refrigeration system has an overcharge of refrigerant.

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.

Homeowners are seeking solutions to improve comfort and IAQ. One device that does both is the humidifier.

Grow rooms are a prominent example of the potential and the challenges of indoor agriculture.

Humidity control makes up an important facet of indoor air quality, a facet that includes reducing airborne viruses but extends far beyond it.

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

Whether it be a single-family household, school, or even a grocery store, all of those spaces need clean, high-quality air — which humidification plays a role in.

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

Comfortable, clean air. That’s what end users on both the residential and commercial sides are looking for in the aftermath of the pandemic.

Proper indoor RH — generally between 35% and 60%, with the range leaving wiggle room for personal preferences and outdoor conditions — is vital in maintaining IAQ, the health and well-being of a home’s occupants, and the condition of its furnishings.

Getting a humidification system dialed in is crucial if customers want to reap all the benefits they have to offer.

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

For contractors in humid climates, a lot of the comfort they provide is through being able to control humidity levels, which can be aided by adding a secondary dehumidification system.

For HVAC pros interested in motors and drives, Tuesday afternoon at this year’s AHR Expo in Atlanta featured a good chance to give the feet a rest and focus on the mind for a while. Air-Conditioning, Heating and Refrigeration Institute (AHRI) presented a three-phase session called VFDs: Method of Laboratory Test and a Case Study.

The AI features in communications software, such as voice-to-text and message-flagging, have made for faster, easier customer-contractor communications that are also more personalized and have less room for misunderstanding.

Beginning July 3, 2019, the Department of Energy is requiring a maximum fan energy rating (FER) for furnace fans.

Frost on an evaporator coil will prevent the correct amount of airflow across the coil. Anytime the evaporator coil experiences reduced airflow across its face, there will be a reduced heat load on the coil.

The future of classroom environments just got a little quieter, thanks to the recent certification of Changeair’s Freshman Series Vertical Air Handler by the Air Movement and Control Association (AMCA) Intl. Inc.

Here is the potential problem: A contractor quotes a customer on the compressor replacement, and he agrees to repair the cooler at the quoted price. Then, as the technician is completing the job — or even after he has finished replacing the compressor — he finds out there is another system problem.

AI-enabled HVAC systems can offer benefits for building owners and occupants. By monitoring and analyzing conditions inside a space, as well as outdoors, the system can constantly make adjustments to the environment based on the data being collected.

Refrigeration systems can become restricted in both their high and low sides for a variety of reasons.

In contrast to many other countries around the world, Americans consume a lot of ice. That’s probably why ice machines are found virtually everywhere here, from convenience stores and supermarkets to hotels and hospitals. It doesn’t really matter what shape it takes — cubes, flakes, nuggets, chips, etc. — but it does have to look and taste good.

Hoshizaki transferred manufacturing of select ice machines from Europe to its facility in Peachtree City.

Poorly installed HVAC systems work twice as hard as they should and suffer from a wide variety of invisible health problems.

The National Air Duct Cleaners Association (NADCA) offers two certifications; the Air Systems Cleaning Specialist (ASCS) certification and the Certified Ventilation Inspector (CVI) certification — credentials that are internationally recognized and known for showcasing an individual's enhanced knowledge and skills related to HVAC system hygiene.

Contractors have to spend the time to effectively choose the right business management software that allows AI capabilities to fold into their day-to-day operations with ease.

AI can make work easier, more efficient for boots-on-the-ground HVAC professionals.

AI, especially its use in information gathering, needs to be harnessed by HVAC contractors if they want to be noticed when customers are searching for services online.

Artificial intelligence, or AI, is now able to handle many of an HVAC contractor’s administrative tasks, and also help employees perform their own tasks better.

This product allows technicians to safely lift, move, and set commercial rooftop a/c units up to 27-ton capacity or 2,500 lbs.

Artificial intelligence (AI) is one of the most promising — and exciting — technologies to come to the HVACR industry in a long time.

Using a smart composite material instead of traditional aluminum, Invi Air's diffusers reduce condensation by up to 95%, leading to improved HVAC system efficiency and long-term durability.

The giant clock on top of the Parker Hannifin Corp. — Sporlan Division’s ZoomLock^® Roadshow truck counted down during the 2019 AHR Expo, keeping track of the time left until the next live demo. Every 40 minutes, Sporlan would bring attendees up to physically make the connection themselves.

The Environmental Investigation Agency (EIA) unveiled a new initiative identifying U.S. retailers committed to taking leadership action to reduce HFCs.

When installing or repairing a refrigeration system, technicians should look for opportunities to slightly modify the system (without changing its design) to make it more serviceable.

While large grocery stores are not going away any time soon, there is a new trend taking hold in the marketplace: the small-format grocery store.

RDSs are generally required in A2L systems that contain more than 4 pounds of refrigerant and can either be field or factory-installed, depending on the manufacturer.

The most important features of electronic measuring devices have been established in customer surveys and are discussed in this article.

Technicians have the choice of using either a digital or mechanical manifold gauge. Each one has its benefits and disadvantages, which is why it may pay to own one of each kind.

Many of Fujitsu General America’s Halcyon mini-split system products now qualify for Energy Star Most Efficient certification.

In today's economy, cost-conscious end users want to extend their HVAC equipment lifespan as long as possible. Regular maintenance on condensing units can help maximize their longevity and performance.

The proper application of modern HVAC technologies can help maximize indoor air quality while minimizing losses in operational efficiency.

Fujitsu’s Technical Service Advisors event was held to strengthen manufacturer-distributor relationships and empower in-field technical support staff.

ACHR NEWS launches new tools to help readers stay up-to-date on the latest trends.

Today’s commercial structures are full of sophisticated controls that have been changing building automation systems exponentially.

Siemens is working to expand their offerings to fit any building size, with any amount of complexity.

While a controls upgrade may be costly, the reality is, the longer you wait, the more expensive a replacement can be.

Scandinavian green energy startup Aira plans to offer a 10-year service guarantee and a monthly fee that includes installation, maintenance.

“(I’m Your) Heat Pump” is a soft, funky, R&B love song told from the perspective of a heat pump that depicts just what a heat pump can provide to its users.