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Changes in Chiller Use

Chillers are being used as heat pumps, outfitted with heat-recovery systems, used in building electrification projects, and installed in arrays to cool data centers.




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Fieldpiece Puts Techs in the Driver’s Seat With Customizable HVACR Tools

The Fieldpiece booth commanded a lot of attention on the show floor at this year’s AHR Expo in Atlanta. Those who didn’t have time to wait in line to find out why may be wondering, “What was all the rage about?”




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The Energy Conservatory: Bluetooth Connected Gauge

Now available with Bluetooth, this product provides users full access to all features of their devices, such as apps and email.




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How Contractors Can Market Services During Recycle Your Mercury Thermostat Day

Here are a few ideas that contractor can use to prime the marketing pump for this holiday.




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Smart Thermostats Set for Rapid Expansion

In the past few years, the thermostat has become a cutting edge electronic. This creates new opportunities for HVAC contractors.




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Security and the Smart Thermostat: Prepare for Customer Questions

The path to temperature control through smart thermostat technology is more involved than many customers realize.




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Growth Seen in Smart Thermostat Market

Internet-connected thermostats are gaining wider acceptance in the marketplace. About 30% of residential thermostats in the U.S. and Canada are connected thermostats.




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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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Selling Smart HVAC on Comfort and Efficiency

Smart HVAC systems optimize energy usage without sacrificing comfort by using data analytics and machine learning to regulate the indoor environment.




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Commercial Cooling Showcase 2011

The NEWS’ annual Cooling Showcase has traditionally introduced the latest air conditioning units available for the upcoming summer season. The intent is to help contractors prepare for this busy period by doing the research that will help them to distinguish between brands. In this issue, we focus on the commercial side of the air conditioning industry.




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Commercial Cooling Showcase 2014: New Equipment Just in Time for Summer

It’s time again for the Commercial Cooling Showcase. The NEWS’ annual issue has traditionally introduced the latest air conditioning units available for the upcoming summer season. The intent is to help contractors prepare for this busy period by doing the research that will help them distinguish between brands.




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Commercial Heating Showcase 2014: New Products Available on the Commercial Market

HVAC manufacturers share their latest heating products — including photos, specifications, warranty info, and more — in this detailed showcase.




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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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EPA Extends Sell-Through Period, Easing Inventory Concerns

The HVACR industry was initially surprised by a date-of-install requirement, mandating installation of certain equipment by January 1, 2025, but EPA extended sell-through period to January 1, 2026.




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Refrigerant Sell-Through Period Extended

The EPA initially faced backlash from the industry regarding the sell-through mandate for certain HVAC systems. The Agency revised the provision by allowing one additional year, until January 1, 2026.




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AHRI Praises Decision on Berkeley Gas Infrastructure Ban

The U.S. District Court of Appeals for the Ninth Circuit recently turned down the city of Berkeley’s request for another hearing in the case brought by the California Restaurant Association (CRA), which had challenged the ban.




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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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Cruz Leads Senate Effort to Shut Down Furnace Rule

The rule will effectively ban the sale of non-condensing gas furnaces and, according to the American Gas Association (AGA), will affect 55% of U.S. households.





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U.S. House of Representatives Push Back on Further Regulation Attempts

Republicans in the U.S. House of Representatives are pushing back on attempts to regulate consumer appliances.




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President Biden Proposes Rule to Address Excessive Heat in Workplace

In early July, the Biden administration proposed a rule that addresses excessive heat in the workplace, as tens of millions of them were under heat advisories — the nation’s No. 1 weather-related cause of death.




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Tour Showcased VRV Systems at Duke Ellington Public School

An HVAC solution was the headliner for an event on Feb. 19 at a 121-year-old building in the nation’s capital named after one of America’s greatest composer-musicians. The event at Duke Ellington School of the Arts demonstrated how stepping beyond traditional non-inverter HVAC systems can preserve a building’s historical architecture, enhance energy efficiencies, minimize noise, and earn design-award accolades.




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RectorSeal, Panasonic, and Contractor Donate VRF System to Arizona Church

Our Lady of Guadalupe Catholic Church’s community center in the Tempe, Arizona suburb of Guadalupe now has state-of-the-art HVAC thanks to variable refrigerant flow equipment, accessories, and installation labor donations from RectorSeal, Panasonic Air Conditioning Group (a division of Panasonic Corp. of North America), and Woody’s Heating and Air Conditioning.




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LG Earns AHRI Performance Award for the Sixth Consecutive Year

Across seven product categories, LG’s HVAC solutions again pass AHRI's comprehensive performance certification program.




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Why More HVAC Contractors Should Offer Duct Cleaning Services

Over time, dirt, dust, pet dander, debris, and more accumulate in air ducts. And since the HVAC system works basically as a whole-home vacuum, all of that is recirculated through homes when the HVAC system runs, unless the ducts are cleaned out.




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Should HVAC Contractors Be Selling Geothermal?

HVAC contractors should be prepared to sell geothermal to new customers regardless of any incentives.




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Defense Production Act, Incentives ‘Turbocharge’ Geothermal

Since President Joe Biden invoked the DPA back in June 2022, HVAC-related energy efficiency incentives and renewable energy technology, have made their way into the spotlight. Many of those who work in the geothermal industry have been “waiting for this day” for decades.




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The NEWSMakers Podcast: Is Geothermal Set for Growth?

Kyle Gargaro, editorial director, The ACHR NEWS, traveled to Oklahoma City to talk with Climate Control Group COO Kevin McNamara about the state of the geothermal industry.




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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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Understanding the Use of Suction Filters/Driers

Unfortunately, we can easily forget the role that suction driers can play in protecting the compressor and the compressor oil.




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Why Remote Startup for Variable Frequency Drives is Essential

Selecting a VFD that features remote startup can decrease the number of individuals needed onsite and provide valuable safety benefits.




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The Secret to Energy and Cost Savings: Pump System Evaluation

Determining the right pump to save energy in a given application can be broken down into three general steps.




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Upper-Room UVGI: An Infectious Disease Control Strategy

The pandemic has marked a turning point for an underutilized technology for infectious disease control in buildings.




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How Much Do You Know About HVAC Service?

Whether you’re the owner of an HVAC contracting company or a student at a tech school, take this quiz to find out how much you know about servicing equipment.




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Public Review of Proposed Revisions to ACCA Manual SPS (HVAC Design for Swimming Pools and Spas)

The 30-day ANSI public review period closes May 14.  




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6 Essential Steps for Teaching CO₂ Refrigeration

CO2 refrigeration systems demand both classroom knowledge and hands-on experience, which is why blending theory with practice creates top-notch technicians.




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Xen Security Advisory 464 v2 (CVE-2024-45819) - libxl leaks data to PVH guests via ACPI tables

Posted by Xen . org security team on Nov 12

Xen Security Advisory CVE-2024-45819 / XSA-464
version 2

libxl leaks data to PVH guests via ACPI tables

UPDATES IN VERSION 2
====================

Public release.

ISSUE DESCRIPTION
=================

PVH guests have their ACPI tables constructed by the toolstack. The
construction involves building the tables in local memory, which are
then copied into guest memory. While actually used...




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Xen Security Advisory 463 v2 (CVE-2024-45818) - Deadlock in x86 HVM standard VGA handling

Posted by Xen . org security team on Nov 12

Xen Security Advisory CVE-2024-45818 / XSA-463
version 2

Deadlock in x86 HVM standard VGA handling

UPDATES IN VERSION 2
====================

Public release.

ISSUE DESCRIPTION
=================

The hypervisor contains code to accelerate VGA memory accesses for HVM
guests, when the (virtual) VGA is in "standard" mode. Locking involved
there has an unusual discipline, leaving...




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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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Re: Xen Security Advisory 464 v2 (CVE-2024-45819) - libxl leaks data to PVH guests via ACPI tables

Posted by Andrew Cooper on Nov 12

Data are leaked into the PVShim guest, but it is the shim Xen
(exclusively) which has access to the ACPI tables.

The guest which has been shim'd can't architecturally access the leaked
data.

~Andrew





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Re: Xen Security Advisory 464 v2 (CVE-2024-45819) - libxl leaks data to PVH guests via ACPI tables

Posted by Demi Marie Obenour on Nov 12

Is this unconditional (perhaps because the relevant data gets zeroed out
by the shim), or does it only apply when the PV guest can't extract data
from the shim's memory? For instance, 32-bit PV guests aren't security
supported anymore, but the PV shim isn't supposed to rely on the
security of the shim itself, only of the rest of the system.




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Honeywell Intl. Inc.: BMS Service

Combining advanced automation and data analytics, Outcome Based Service enables Honeywell service engineers to assess and scrutinize building assets around the clock, promoting the identification of anomalies and misconfigurations.




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See What’s Possible at the New UTC Innovation and Technology Center

United Technologies Corp. (UTC), the parent company of Carrier Corp., recently opened the new UTC Center for Intelligent Buildings in Palm Beach Gardens, Florida.




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Roof Mount System Secures Solar Racks, HVAC Equipment, and More

OMG Roofing Products has introduced the PowerGrip Plus roof mount system, a watertight structural attachment system used to secure solar racks, HVAC, and other equipment to roofs covered with thermoplastic (TPO and PVC) membranes.




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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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Residential Cooling Showcase 2016: Systems Designed to Keep Customers Cool

Every year, The NEWS introduces the latest cooling equipment available for the upcoming summer season in order to help contractors prepare for this busy period by doing the research that will help them to distinguish between brands. The coverage features specific information about each individual product as submitted by the manufacturers.




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Commercial Cooling Showcase 2016: Summer Heat No Match for HVAC Cooling Equipment

The manufacturers provided all of the data included in the product grid as well as the photo feature. Therefore, any questions should be directed to them via the contact information provided in the photo feature section.




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Residential Heating Showcase 2016: New Products Help Homeowners Feel the Heat

This heating showcase provides in-depth information on the features of each individual unit and also includes technical support information from the manufacturer. The manufacturers provided all of the data included in the product grid as well as in the photo feature; therefore, any questions should be directed to them via the contact information provided in the photo feature section.




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Commercial Heating Showcase 2016: New HVAC Systems Help Keep the Commercial Market Warm

Each year, The NEWS spotlights the industry’s latest commercial heating products. The manufacturers provided us with a brief description of features included with each product.




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Serviceability, Flexibility Earn Aaon’s WH Series DDA Gold

Aaon’s focus on serviceability and performance helped the WH Series earn gold in The NEWS’ 2017 Dealer Design Awards HVAC Light Commercial Equipment category.