An HFC-134a based innovative cooling and heating project at one of the London Canary Wharf main buildings received an Award for Excellence for replacing the fresh air cooling and heating system, decreasing substantially the energy consumption while increasing capacity by 25 %.
The new system, replacing an inefficient and under-powered system, significantly reduced building running costs and energy consumption, while providing outstanding indoor comfort.
It relies on 6 high performance Air Handling Units (AHU) totaling 99 m3/sec, and 6 HFC based water/air heat pumps, totaling 2.34 MW heating capacity and 2.12 MW cooling capacity.
To minimize energy usage in heating mode, heat from the condensing water is recovered by the heat pumps for pre-heating the incoming air.
Source : Manufacturer Information