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New Sales Director at LG’s A/C Technologies Division

Sean Foster will oversee the distribution sales team responsible for expanding LG’s market share in the residential and light commercial HVAC sectors.




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Portable HVAC Equipment Helps Customers Keep Their Cool

Portable cooling systems work well as temporary solutions and can also serve as long-term options for unconditioned spaces like factories and warehouses.




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Window Air Conditioners Take a U-Turn

New window units are quiet and efficient, and HVAC contractors may want to consider offering them to customers who need them on an emergency – or long-term – basis.




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Three Cheers For Air Conditioning and Refrigeration

Air conditioning and refrigeration are marvelous inventions and have a transformative impact on comfort and health, underscoring their irreplaceable role in modern living.




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Air Force Veteran Wins HVAC Contractor's A/C Giveaway

Don Kuhl, a U.S. Air Force veteran and civil servant, secured the most public votes and won an a/c unit in the giveaway, which honors the sacrifices of local veterans, active-duty service members, and their families.




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Heat Pumps: Their Role in Decarbonization

Across the country, state and local governments are mandating lower building emissions, pushing building owners to full electrification. Building codes and natural gas bans, however, only target new construction.




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Paths to Energy, Environment Design Water Conservation Credits for Evaporative Cooling Towers

Although evaporative cooling is great at saving energy, it does consume some water, but the benefits on energy savings outweigh the water usage, which in some places is a scarce resource.




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Creative Composites Group Acquires Enduro Composites

Creative Composites Group's acquisition of Enduro will add to CCGs suite of manufacturing capabilities and geographic reach.




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Open-Loop Cooling Towers or Closed-Circuit Coolers?

Despite their similar exterior appearance, cooling towers and closed-circuit coolers are very different pieces of equipment with distinct advantages and limitations. This is especially true when determining which option is best suited for a specific cooling application.




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Troubleshooting a Faulty HVAC Compressor Requires Patience

How does a tech know the a/c compressor he or she is diagnosing is actually failed and that the problem is not a crankcase heater, condenser fan, or rubbed out wire?




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Wireless, Feature-Rich Products Top Electronic and Hand Tools

The 8 CFM Vacuum Pump from Fieldpiece Instruments earned its place atop the Electronic and Hand Tools category.




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Flir Systems Inc.: Environment Meter

Based on hygrometer technology, this product identifies deviations from ambient rh levels, which can cause static hazards at manufacturing sites and discomfort in homes and offices.




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Nest Pro Virtual Summit Highlights Partnership Between Google and HVAC Contractors

When homeowners purchase a Nest product, Google will connect the customers to a qualified installer, a “Nest Pro.”




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Contractors Select Their Top HVAC Controls

When considering the multitude of HVAC thermostat options available on the market, who better to decipher the best from the rest than those responsible for their installation and operation?




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Copeland, Woosh Air Team Up to Improve Home IAQ

When the Woosh air quality monitor and smart air filter are paired with a Sensi smart thermostat, users can transform an HVAC system into an air purifier for the entire home.




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The Makeup Air Unit Defined

OK, you’ve exhausted all of the existing air from an interior space; now how do you replace it? You bring in makeup air from another source. For the purpose of an HVAC discussion, your source will be mechanical equipment — makeup air units.




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Valent Air Management Systems, a business of Unison Comfort Technologies: Commercial Makeup Air Units

Heat-only, direct-fired, and indirect-fired makeup air units have been added to the company’s product line. 




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BasX Solutions Acquires Seasons 4 Clean Room Product Line

BasX Solutions, a manufacturer of custom engineered products including HVAC solutions, announced that it has completed its acquisition of the clean room product line from Seasons 4.




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Modine Mfg. Co.: Makeup Air Unit

The unit includes a standard neoprene, vibration-isolated blower and motor for quiet operation.




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Modine Offers New Direct Fired Make-Up Air Unit

Ideal for cost-conscious applications that require 100 percent outside air, the new unit from Modine provides first-rate efficiency with a 100 percent thermal efficiency (92 percent sensible), and extends airflow capability to as low as 800CFM to cover far more applications than previously offered.




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Stelpro: Make-up Air Unit

The MUAA distributes tempered fresh air to provide maximum comfort to the occupants in well-ventilated homes. The heating elements modulate continuously, which allow fresh, hot air at a low cost.




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HFC Coalition Cheers Antidumping Inquiry

The U.S. Department of Commerce is investigating whether Chinese HFCs are circumventing the 2016 antidumping duty order on HFC blends.




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States Seek IRA Rebate Funding

California, New Mexico, New York, and Hawaii are the first states to apply for federal rebate money for high-efficiency equipment. Twenty-three states have received funding to set up and manage rebate programs.




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Florida Budget Includes IRA’s HVAC Rebates

The Florida Legislature’s budget plan for the next fiscal year reinstates federal rebate money for high-efficiency home HVAC equipment and energy-saving upgrades. The governor’s office said he is reviewing the budget.




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Ducted Mini-Split Air Handlers Offer Flexibility

Most of the rest of the world has relied on ductless mini-split systems for their heating and cooling needs for decades, but that has not been the case in the U.S. That may be changing with the advent of ducted mini-split systems.




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Expert Advice on Navigating that First A2L Installation

Manufacturers are starting to introduce their A2L systems in the U.S., so contractors and technicians must learn how to service and install this new equipment.




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Advice for the First A2L Installation

With the impending deadline right around the corner, manufacturers have started introducing their A2L systems in the U.S.




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Virginia Passes Geothermal Bill With Major Financial Incentives

The bill significantly reduces the cost of a geothermal installation, spurs job creation, and hopes to inspire more contractors to tap into the geothermal market.




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The Impact of Adding or Removing Water from Air

We often humidify and dehumidify as part of our work, but let’s take a different look at what happens when we do that.




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Guiding Customers through Indoor Air Quality and the Tips to Maintain IAQ

As HVAC providers, we have the ability to advise homeowners, builders, and property managers on ways to improve their indoor air quality.




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A Simple Guide to the Refrigeration Cycle and How Air Conditioners Work

Four core components work together to control when refrigerant is absorbing heat, and when it is releasing heat.




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How Can A Direct Drive Design Optimize Cooling Tower Performance?

A variable speed drive (VSD) controls the speed of the high-torque, direct-drive motor for optimal fan operation.




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Maximizing Indoor Air Quality Without Sacrificing Energy Efficiency

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




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10 Things to Know Before Your First Mini-Split Call

The first time a technician has to tackle a ductless mini-split can be nerve-racking, but by following these 10 tips, the job can be done without all the anxiety.




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CVE-2024-50386: Apache CloudStack: Directly downloaded templates can be used to abuse KVM-based infrastructure

Posted by Daniel Augusto Veronezi Salvador on Nov 12

Severity: important

Affected versions:

- Apache CloudStack 4.0.0 through 4.18.2.4
- Apache CloudStack 4.19.0.0 through 4.19.1.2

Description:

Account users in Apache CloudStack by default are allowed to register templates to be downloaded directly to the
primary storage for deploying instances. Due to missing validation checks for KVM-compatible templates in CloudStack
4.0.0 through 4.18.2.4 and 4.19.0.0 through 4.19.1.2, an attacker that...




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Economizers Offer Many Benefits for Rooftop Units, Air Handlers

Economizers used in rooftop units and air handlers are multipurpose devices that can improve both the energy efficiency and indoor environment in a wide range of commercial buildings.




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Johnson Controls acquires EasyIO Building and Energy Management System

Johnson Controls announced that it closed an agreement to purchase the EasyIO Building and Energy Management System (BEMS) product line.




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Aircuity is Approved Vendor for Real-Time Energy Management Program

Aircuity has been named a New York State Energy Research and Development Authority Qualified Vendor for the RTEM program.




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Project Files: Episode 27 — U.S. Air Conditioning Distributors

When it comes to smart thermostats, USACD walks the walk and talks the talk.




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Acuity Brands to Acquire KE2 Therm

The acquisition extends Distech Controls’ addressable market into commercial refrigeration.




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BrainBox AI in Agreement to Acquire ABB’s Multisite Retail Energy Management System Integrator Business

BrainBox AI intends to integrate ABB’s MSR business and its installed base of 12,000-plus retail locations in its current operations.





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Nortek Global HVAC Introduces 3-Phase Light Commercial Air Conditioner

Nortek Global HVAC has introduced a new three-phase electric/electric packaged cooling solution. The company said the Model P8SE delivers 14 SEER cooling in capacity ranges from 3 to 5 tons in even tonnages, making it an energy-efficient choice for strip malls, restaurants, and retail stores.




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Luxaire® Unitary Products: Package Equipment

This series of residential package equipment features energy-saving performance as well as cost-effective installation and maintenance.




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Coleman Heating and Air Conditioning: Packaged Units

The units feature an exact-fit replacement design that matches the units to footprints of other manufacturers’ units and eliminates the need for a curb adapter.




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Wireless, Connected Tools Surging in Popularity

There’s no doubt the connectivity of mobile devices has made our personal lives more convenient, but now they’re also helping make technicians more efficient, thanks to tool manufacturers developing wireless-enabled devices and test and measurement apps for download.




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Contractors Rank Their Go-to HVAC Tools

We asked our contractor advisory panel to weigh in on their most useful and effective tools used in the field. Here’s what they had to say.




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The Wireless HVAC Tool Wave

Manufacturers are responding to the demand by offering a wide range of wireless tools they believe will help contractors and technicians do their jobs more accurately and efficiently.




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HVAC Pros Discuss Their Favorite Diagnostic Troubleshooting Tools

HVACR technicians are special individuals. They have the intelligence, aptitude, and knack for problem-solving. In fact, they are expected to know how to diagnose and troubleshoot equipment of all types, sizes, and ages.




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Extech, a division of Flir Systems Inc.: IAQ Meter

This handheld device displays CO, CO2, air temperature, rh, dew point, and wet bulb temperature measurements.




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Extech, a division of Flir Systems Inc.: Digital Multimeter

Designed for HVAC and refrigeration professionals to view electrical and temperature readings, this product logs data remotely using the ExView® W-Series app on smartphones and tablets via Bluetooth.