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Hotel overlooking St Pauls Catherdral. Three YORK air-cooled chillers, one at 300 kW and two at 390 kW, for a central London city hotel operating on R454B refrigerant with a low GWP of 467, providing additional cooling capabilities for the hotel. 

The chillers were craned and positioned on the roof under steel grates for aesthetics, as the city-based hotel has a thriving rooftop bar. 

Our team at Exi-tite selected the chillers for the project, designed the schematics and coordinated the drawings with all involved, then transported the chillers across Europe, delivering them directly to the site to meet the exceptionally tight time scale.



Outdoor units 

2 x 390kW Chillers 

1 x 300kW Chillers

Low GWP refrigerant


A low GWP (466) A2L safety class alternative to R-410A for use in direct expansion air conditioning and heat pump applications. R454B has improved cooling and energy efficiency performance than R‑410A. 

Sustainable and compliant with F-Gas legislation. 

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