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Case Studies

HSBC - Croydon, Surrey

AC installation. Dunn AC were appointed by their client to supply heat pump air conditioning to replace their failed system serving the banking hall, cashiers, personal banking offices comms and staff rooms throughout the branch.

Dunn AC de-installed and via a crane, the current triple linked VRV condensers and internal fan coil units were removed and disposed of. New refrigerant grade insulated copper pipe work was installed on tray throughout roof area, dry risers and throughout branch fully supported to each fan coil unit along with communication and electrical cabling.

A new Mitsubishi Electric PURY-P550YSNW-A VRF condenser was positioned onto the flat roof above via a mechanical crane and new concealed ducted fan coil units were mounted and positioned to serve the banking hall, cashiers area, personal banking offices and comms room throughout. A new Master BC Controller was installed at high level to branch teach unit for optimum control.

Our task was to complete the works on a strict deadline out side of normal working hours and with restraints in place on crane lifts in public areas by the local council.

Full operation and maintenance manuals, test and commissioning certification and user training followed the successful completion.

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