Skip to main content

Heavy Duty

Everything You Need to Know About MACS 2024 Annual Training Event & Trade Show

September 28, 2023

Are you ready for the Mobile A/C industry event of the year? MACS is proud to announce its 2024 Annual Training Event & Trade Show, taking place from January 31st...
Read Article >

Recycle vs Reclaim

May 17, 2023

By Steve Schaeber, MACS Technical Editor MACS member shops (and in fact, almost every repair shop in the country that services mobile A/C systems), have been servicing those systems the...
Read Article >

Avoiding Expansion Valve Woes (Part 1)

March 21, 2023

By Richard Hawkins On March 2nd, an article was published in this blog covering a class that was held at the recent MACS Training Event and Trade Show.  The class...
Read Article >

Training Event Tech Session Wrap up (Part 1)

March 2, 2023

By Richard Hawkins There were some great classes presented at the 2023 MACS Training Event and trade show held in Nashville, TN on February 2nd through February 4th.  Starting with...
Read Article >

New Product Showcase Winners

February 23, 2023

Every year, MACS hosts a new product showcase in the Trade Show at the Annual Training Event. This year in Nashville, 18 companies displayed their new products in the showcase...
Read Article >

Follow up on the 12/30/22 EPA virtual public hearing

January 12, 2023

By Steve Schaeber, MACS Technical Editor Let me start off by saying Happy New Year! to everyone, and here’s to a great 2023! Since many of you were on holiday...
Read Article >

EPA proposes GWP limit for five MVAC subsectors

December 22, 2022

By Steve Schaeber, MACS Technical Editor The mobile air conditioning industry has, so far, used R-1234yf refrigerant primarily in passenger vehicles and light duty trucks. Although MACS has reported on...
Read Article >

Too Many Compressors

December 20, 2022

The blog article published on November 8, 2022, focused on understanding the importance of knowing the precise location of service ports when faced with a challenging A/C diagnostic issue.  It...
Read Article >

Selection of the Proper O-Ring for Your MAC Application

November 9, 2022

Did you know the selection of the proper O-ring for your MAC Application can have a major result on your A/C repair?
Read Article >

Interior Heating Evolution

November 1, 2022

In the last 120 years, automotive passenger heating has evolved dramatically from open carriage-type automobiles with little occupant protection from the elements to complex electric vehicle (EV) heating, ventilation, and air conditioning (HVAC) systems.
Read Article >

North American Vehicle and Consumer Trends

October 28, 2022

A look at the latest population trends for light vehicles in North America. Presenters will provide insight on replacement rates for popular A/C products and talk about the changing trends in engine size, vehicle segments, electrification, and more.
Read Article >

Electric Compressors, EV System Enhancements and Heat Pumps

October 26, 2022

EV and hybrid manufacturers are searching for every yard/meter of range they can squeeze out of their vehicles. In the race to get their newest offerings into the driveways of consumers, range is a major factor. HVAC can severely effect vehicle range, and engineers are doing everything possible to reduce the impact of this creature comfort/necessity.
Read Article >