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 >
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 >
Staying RRR current
October 25, 2022
The refrigerant checked out fine. No contamination with other refrigerants and no air contamination. Their machine pulled 30 ounces out of that system.Read Article >
Essentials in PHEV and BEV Thermal Management
October 25, 2022
You can attend HVAC Hide and Seek for Electrified Vehicles: Essentials in PHEV and BEV Thermal Management with Dave Hobbs at MACS 2023 Training Event and Trade Show. class on Thursday, February 2 from 9:45-11:15am and again from 2:45-4:15pm.Read Article >
Plug into MACS EV Program
October 24, 2022
Plug into MACS EV Program. MACS is providing a robust electric vehicle training program at our 2023 Training Event and Trade Show.Read Article >
The Changing Serpentine Belt Drive World
October 20, 2022
Serpentine belt system diagnostics are important. How do we know if the belt, tensioner, or idlers are failing? What are the consequences to the accessories in the system if the belt, tensioner, and idlers are past their useful life span? Plus, where is technology taking us in the serpentine belt drive world? Learn the answers to these questions in this session.Read Article >
Refrigerant recovery and system diagnostics
October 19, 2022
That’s right. Two days later the customer called and said it was cooling terrible. I had him bring it back in and put the gauges on it and checked the vent temperature and it was running about 325 on the high side and about 45 on the low side and the vent temperature was about 55 as I indicated earlier. Of course, it was in the low 90’s that day.Read Article >
