Trane Premieres Ascend Model ACX, First Air-to-Water Heat Pump; Announces Redesigned Precedent Rooftop Units

Trane – by Trane Technologies has launched the Ascend Air-to-Water Heat Pump Model ACX, the first air-to-water pump solution in its portfolio that provides both electric heating and cooling, giving building owners an avenue to pursue decarbonization via electrification. Trane also announced it is bringing a new generation of Precedent rooftop units to market, consolidating the legacy Precedent and Voyager 2 offerings.

Ascend Air-to-Water Heat Pump Model ACX

The new pump combines chiller and heat pump technology to both heat and cool a building using electricity. In cooling mode, the model moves heat from inside the building to the outside. In heating mode, a reversing valve changes the flow of energy to bring heat from outside of the building to the inside. The heat pump moves heat using a compressor, rather than simply generating heat. This technique can make heat pumps up to three times more energy-efficient than other forms of electric heating.

As a result of its boiler-free heating, the model achieves high energy efficiency for cooling and heating. The unit’s heating efficiency exceeds ASHRAE standard 90.1-2019: 2.77 COP for heating and a cooling requirement of 9.215 EER.

The Ascend model ACX can help builders and operators meet HVAC regulations, attain certifications, or achieve a net-zero energy building with its all-electric functionality and other energy-efficient features.

Precedent Enabled by Symbio 700

The new rooftop unit portfolio will include capacities from 3-25 tons, a full range of tonnages and heating types, and improved efficiency levels. The new single-product family of light commercial unitary rooftops will be released in phases now through 2024.

The standard efficiency 6- to 25-ton cooling and gas units feature various improvements and upgrades, including part-load efficiency ratings that comply with new industry efficiency requirements. New Precedent units are enabled by the Symbio 700 controller to easily monitor and control HVAC systems and harness building connectivity for advanced troubleshooting and energy management.