Carrier Solutions UK Ltd (formerly Toshiba Carrier UK Ltd) is a part of Carrier Global Corporation (NYSE: CARR), global leader in intelligent climate and energy solutions.

Working in close partnership with installing contractors AlterTherm Group Ltd, Carrier Solutions UK provided a high-performance, space-saving HVAC solution designed to integrate seamlessly into the existing hotel infrastructure.

Two 150kW Toshiba USX Edge modular air-source heat pumps were installed in July 2024, delivering a combined 300kW of capacity. The installation marked the first deployment of the new-generation USX Edge system in the UK, selected for its compact footprint, modular flexibility and advanced energy efficiency.

“The NOVOTEL Edinburgh installation was a complex yet highly rewarding project,” said Stuart Curtis, Managing Director of AlterTherm Group Ltd. “The space-saving X-frame chassis and modular design of the USX Edge units made it possible to install them easily, even in a constrained rooftop location. This system is a game-changer in light commercial HVAC solutions, and we continue to offer it to our clients. The success of this project has meant that we have since installed a second Toshiba USX Edge at another hotel in the hotel group and continue to enjoy preferred partnerships with both them and Carrier Solutions UK.”

The USX Edge features Toshiba’s enhanced DC twin rotary compressor technology and an industry-first pulse width modulation (PWM) converter. These innovations reduce energy losses, improve power factor and eliminate harmonic currents. The units operate on lower GWP R32 refrigerant and deliver SEER ratings of up to 4.90 and a CoP of up to 3.62 depending on the model.

Remote monitoring and control via integrated wireless LAN functionality ensures the system can be managed and optimised in real time by both hotel staff and Carrier engineers. An essential benefit for the hotel was built-in redundancy: each USX unit features independent circuits to maintain operation in the unlikely event of failure, offering added peace of mind.

A key challenge of the project was maintaining hotel operations throughout. Careful planning of the equipment delivery, crane installation and commissioning process meant disruption was kept to a minimum. The crane lift was completed safely and efficiently during a late-night window, with surrounding roads temporarily closed to avoid local disruption.

The rooftop-mounted system now delivers year-round comfort for guests and staff at Novotel Edinburgh, with trackable performance and reduced environmental impact compared to the legacy R410A system it replaced.

Visit the Carrier Solutions UK website for more information on the Toshiba Universal Smart X Edge: www.toshiba-aircon.co.uk