G&D Chillers, an Ingersoll Rand company, announces the SUMMIT AIR Series, a line of commercial air-cooled chillers ranging from 20 to 200 tons across 11 standard models. Units run on R-454B refrigerant, which is A2L-compliant and below the EPA AIM Act's 700 GWP threshold. The series features tandem scroll compressors, variable-speed EC condenser fans, and native BACnet and Modbus BAS integration.

All models are designed to meet ASHRAE 90.1-2025 efficiency requirements. The units feature open, non-proprietary parts, and 24/7/365 direct engineering access supports long-term serviceability. The SUMMIT AIR Series is built in Junction City, Oregon.