Agility Magnetic-Bearing Centrifugal Chiller (HDWA)

The Agility HDWA is Trane's oil-free water-cooled centrifugal chiller, using a two-stage direct-drive centrifugal compressor levitated on magnetic bearings with a permanent-magnet motor. Eliminating oil removes the lubrication system entirely — no oil pump, no oil cooler, no oil separator — which cuts maintenance touchpoints and eliminates the efficiency penalty of oil contamination in the refrigerant circuit. The compressor operates on R-513A (GWP 631, roughly 55% lower than R-134a), a medium-pressure refrigerant that allows a compact overall footprint relative to low-pressure alternatives.

The chiller is specifically engineered for physical access in retrofit projects: fully assembled it passes through a standard 72 × 80-inch double door; disassembled into two bolt-together sections it fits a 34 × 80-inch single door, avoiding structural demolition to bring equipment into existing plant rooms. This makes it suitable for airport terminal refurbishment programmes where the chiller plant may pre-date current access clearances. Capacity spans 175–500 tons with a planned extension to 800 tons.

Optional integrated heat recovery delivers water temperatures up to 130 °F (54 °C), useful for domestic-hot-water pre-heat in passenger terminals. Thermal energy storage and harmonic filter packages are also available. Symbio 800 serves as the equipment controller, and the unit carries a third-party verified Environmental Product Declaration for sustainability procurement reporting. Standard motor voltage is 460/480 V, with transformer-free connectivity at 208 V or 575/600 V as an option to reuse existing wiring.