The MACS HD Truck/Off-Road Technical Session began with an informative presentation by John Wagner of Association of Equipment Manufacturers (AEM). He announced that the 125-year-old AEM includes all major HD HVAC systems off-road manufacturers and 1000-plus members representing more than 200 product lines.
AEM and its members are working with the U.S. EPA for approval to use low GWP refrigerants in five different categories of off-road vehicles. To date, the use of R-1234yf and R-152a are not approved by EPA SNAP (Significant New Alternatives Program) in any off-road vehicles. This is a significant concern for off-road equipment manufacturers who sell their equipment in Europe where regulations require the use of low GWP refrigerants.