Daimler-Benz, Milton Keynes

Daimler Chrysler was looking for an efficient and flexible climate control system for the refurbishment of their UK headquarters at Tongwell, Milton Keynes, that also had good environmental credentials.

Colt had provided four Caloris WRF units to Daimler Chrysler for a year long test and operation. Following this, Daimler Chrysler selected Caloris for its controllability, flexibility and energy saving capabilities.

The previous VAV system did not provide these adequately, leading to user dissatisfaction and high running costs. Typically a Caloris system with fresh air inlet will consume approximately 70 kWh/ m² / annum whereas VAV is usually considered to consume approximately 180 kWh/ m² / annum.

Daimler Chrysler was also interested in the ease with which the Caloris system could easily link with a ground source energy system should they wish to pursue this.

Kier Construction, who had been assigned to complete the refurbishment, were also able to validate the suitability of the Colt system.

69 Caloris Indoor Units are connected via a Colt ICS 4-Link control system to a remote PC in another building using the Daimler BMS system for central control. This enables both localised and remote control via the BMS.

This is the first of three planned phases to refurbish this three storey headquarters building. In the future additional outdoor capacity will be added to match the floor loads. A variable speed pump has been installed to accommodate this and the risers sized at 150mm diameter with each floor requiring a 100mm diameter supply. This demonstrates the flexibility of the Caloris WRF water based system.

 

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