H&V Building Services Ltd was appointed to undertake the full replacement of the existing heating, hot-water and cold-water plant serving the Chandler Wing at the National Hospital for Neurology and Neurosurgery.

Being a hospital, the Heating and water services plant is in use 24 hours a day, 365 days a year and therefore a carefully phased approach was applied to the plant and pipework upgrade and throughout the replacement, the heating, hot water and cold-water services always remained fully operational.

Notwithstanding the difficult nature of planning and implementing live plant and pipework replacement, the project was delivered throughout the first COVID 19 lockdown.

The works consisted of:

• Removal of 4 No. Heating Boilers, 4 No. HWS Boilers, HWS Buffer Vessels, Circulation Pumps, Associated pipework, Water Tanks and Control Panel
• Installation of 7 No. New Heating Boilers
• Installation of New Boiler Flue System
• Installation of 7 No. New Primary Heating Pumps
• Installation of 8 No. New Secondary Heating Pumps
• Installation of 2 No. new LTHW to HWS Plate Heat Exchangers
• Installation of 4 No. new HWS Buffer Vessels
• Installation of New HWS Secondary Return Pumps
• Installation of 2 No. new 24,000 litre cold water storage tanks
• Installation of new Heating, Hot Water and Cold-Water Distribution Pipework
• Installation of new Trend Control System form 4 control Panel
• Installation of new LED lighting Throughout
• Installation of new stand alone, self-test emergency lighting system