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Low GWP R32-based Toshiba air conditioning delivers comfort at Haven House Children’s Hospice

A Toshiba air conditioning system based on low Global Warming Potential  (GWP) refrigerant R32 is providing a high quality indoor environment at Haven House Children’s Hospice at Woodford Green, Essex.

David Higgins, of DJ Higgins Consulting Ltd, who headed up the air conditioning project design, said: “Public areas and intensive care bedrooms were overheating during warmer months. The two-storey listed building has a large loft area with little ventilation, and vital medical equipment in rooms was adding additional heat.”

He added: “The client’s brief was to ensure that children and other users of the building were protected from uncomfortably warm temperatures, without introducing draughts or noise disturbance, to ensure that they were as comfortable as possible at all times.”

Initially, air conditioning equipment by another manufacturer was considered, however there was concern that operating on a high-GWP HFC refrigerant, the system would prove expensive to maintain in the future due to the phase-down of these substances under the F-Gas Regulations.

Long term solution

Following discussions, Michael Kocurek, Toshiba’s regional specification sales manager, worked with David Higgins on a design based on Toshiba RAV Super Digital and RAS Mirai split systems operating on low GWP refrigerant R32. This provided a long-term solution not subject to restrictions under the current F-Gas Regulations. Equipped with a highpower inverter for fine control, it also met the client’s requirements for energy efficiency, reliability and quiet operation.

Mike Palfreman, chief executive of Haven House, said: “An important part of the care we provide to children and their families is to ensure they are as comfortable as possible. Maintaining stable temperatures in rooms and public areas, without creating noise disturbance or draughts, is a key aspect of this. The new system was only installed recently, but is already transforming comfort conditions. In the coming Spring and Summer, as outside temperatures rise, we expect it to really come into its own.”

The installer was AM Air Conditioning (UK) Ltd, working with main contractor Chigwell Construction on the refurbishment project.