Premier Park, West London

The brief

The mechanical works for this office and warehouse refurbishment in West London included the following:

• Installation of a new Mitsubishi Electric VRV has been added to each of the Ground and First Floors, with a selection of ceiling void ducted fan coil units in the various office spaces providing heating and cooling through swirl type diffusers and boxes, a VRF distribution box has been installed above the ceiling on each floor, and the condensing unit is located externally on a plinth adjacent to the side of the building.
• There are three Mitsubishi Electric heat recovery air handling units, two MVHR Units are above the ceiling on the first floor serving each floor space, the ductwork serving the first and ground floor is run within the ceiling void of the first floor, with the ground floor ductwork extending at high level and running on the warehouse wall to serve the ground floor.
• The third heat recovery unit has been installed above the ceiling, adjacent to the FCU, to serve the Reception Area. This consists of new supply and extract ductwork, with any necessary volume control and resettable fire dampers, thermal insulation, and integral control panel.
• New louvres have been installed to colour match the building at high level on the front façade and to the side at ground floor level. These have local controllers on the side of the units, but they are also programmed to be controlled from the central controller.
• The air conditioning and heat recovery systems (excluding the toilet system) are controlled through a mechanical control panel located in the first-floor plant room, this has the Mitsubishi Electric central controller, which has been supplied with Energy Monitoring software and associated metering, which is located on the front of the panel. This is linked to the Fire Alarm and will cause all the connected plant to shut down in the event of a fire.
• The supply and extract in the toilet areas, is provided by a Nuaire heat recovery unit installed above the ceiling at first floor, this is installed adjacent to the toilet space, the ductwork runs above the toilet area and discharges at high level through new louvre above the front façade.
• The air conditioning and heat recovery systems (excluding the toilet system) are controlled through a mechanical control panel located in the first-floor plant room, this has the Mitsubishi Electric central controller, which has been supplied with Energy Monitoring software and associated metering, which is located on the front of the panel.
• This is linked to the Fire Alarm and will cause all the connected plant to shut down in the event of a fire.
• A rainwater harvesting system has been installed with a water leak detection system. The rainwater harvesting can be monitored from a screen in the reception area.
• The newly refurbished 43,036 sq. ft warehouse space achieved Net Zero Carbon and a BREEAM excellent rating.
• Amend the refrigerant charge according to the pipe measurements
• Carry out a pressure and evacuation test on all the systems
• Air balancing was completed to ensure that the system was meeting the design criteria
• All testing for the air conditioning systems has been supported by accompanying documentation including certificates
• Drawings and an operation and maintenance manual were included as per the criteria
• A F-Gas logbook has been completed and included as standard