Air conditioning provides heat source for hot water

The first installation of Daikin UK’s combined VRVIII/heat recovery/hot-water system is in the London headquarters of a large international technology. The system combines VRVIII heat-recovery air conditioning with the provision of domestic hot water via special hot-water modules. It was engineered and installed by Airtech Air Conditioning Services and effectively supplies DHW at no cost.

As part of the upgrading of the building services, the toilet core was remodelled, with more toilets and the addition of shower facilities.

Five 8 kW hot-water modules are installed in the central-core mechanical riser, one to each VRVIII loop. Heat from the loops is transferred to 300 l hot-water cylinders that serve toilets, washing, shower and break-out facilities. The cylinder temperature is maintained at 45°C with a start-up time of 45 min. An electric booster heater in the upper section of each cylinder provides back-up and also raises the water temperature to 65°C to control legionella.

For more information on this story, click here:sept 09, 82
Related links:
Related articles:



modbs tv logo

Get up to date With GEZE’s latest Product Guide

GEZE UK, has updated its Product Guide and Price List to help architects, architectural ironmongers and specifiers choose the most effective product for their needs.

CIBSE launches new training on the Building Safety Bill

The Chartered Institution of Building Services Engineers (CIBSE) has developed a new training course focused on the Building Safety Bill. The course is designed to support building services professionals in preparing for and complying with the most significant reform to building regulations in 50 years.