Retrofitting R-1234yf mobile air conditioning systems is prohibited
November 15, 2016
By Ward Atkinson and Bill Hill Note: The information in this article is the current overview as collected by Ward Atkinson and Bill Hill from industry and regulatory sources. It...Read Article >
MACS mobile A/C field service study 2016
October 26, 2016
MACS has tracked the mobile air conditioning field service experience for many years to identify trends that may assist members to align their business with current developments and plan for...Read Article >
Chevrolet Malibu keeps you cool with R-1234yf
October 12, 2016
By Steve Schaeber, MACS Technical Editor GM was the first manufacturer to sell a vehicle in the United States that uses the new R-1234yf refrigerant when they came out with...Read Article >
New EPA rule allows R-1234yf in certain trucks
October 7, 2016
By Steve Schaeber, MACS Technical Editor If you’ve been waiting to see R-1234yf in something larger than a ½ ton pickup truck, you might not have to wait too much...Read Article >
New EPA rule restricts the sale of HFC refrigerants
September 30, 2016
By Steve Schaeber, MACS Technical Editor On September 26th, US EPA finalized two rules that will reduce the projected growth and emissions of HFCs (hydrofluorocarbons), a class of chemicals that...Read Article >
Antique air by Denso, circa 1973
September 26, 2016
By Steve Schaeber, MACS Technical Editor Regular readers of the MACS WordPress BLOG know that we’ve been out and about lately, hunting down those vehicles that are new to the...Read Article >
A small Δ in airflow = A BIG impact on A/C performance
September 21, 2016
By Steve Schaeber, MACS manager of service training Proper air flow across the heat exchangers in an air conditioning system is key to its being able to transfer heat efficiently....Read Article >
The latest on R-1234yf from MACS member Honeywell
September 19, 2016
By Steve Schaeber, MACS Manager of Service Training Rick Winick, Business Director, leads the Honeywell Fluorine Products Automotive Refrigerants segment. Rick and his team work to ensure global automotive OEM...Read Article >
Insufficient A/C performance at idle
September 8, 2016
On some 2013 Chevrolet Sparks, the air conditioning duct temperature may be 10°F (5.6°C) warmer at idle, but is sufficient while driving . Verify that the A/C pressures are...Read Article >
Denso uses A/C to alert drowsy drivers
September 6, 2016
By Steve Schaeber, MACS Technical Editor The basic technology has been around for a while now, going back at least 10 years on Toyota and some luxury car brands such...Read Article >
What does desiccant look like after 16 years?
August 26, 2016
By Steve Schaeber, MACS Technical Editor We’ve all heard this word before, probably for the first time during one of our HVAC (heating, ventilating and air conditioning) classes when we...Read Article >
A/C Groan
August 25, 2016
You may think that a bit of noise with the air conditioning turned on is not the highest priority item for a motorist. After all, if the car is running...Read Article >
