Commodity Quay, St Katharine Docks

The Project Consist of

Jaguar Projects were tasked with replacing the two chillers at Commodity Quay whilst the building remained fully occupied, a temporary chiller had been in place for a number of months as limited options were available to replace the chillers, the temporary chiller was undersized for the maximum summer load.

The challenge was to undertake lift of equipment which had to be partially broken down to not exceed lifting limits maintain building operations effectively therefore careful planning and good communication with stakeholders was key to ensure minimal disruption to the building tenants.

The existing 2 No. Bluebox chillers was replaced with 4no. Trane Air Cooled 2 Pipe Reverse Cycle Heat Pumps (CXAF 095 HE XLN R454B) on the Roof to the serve the
CHW circuit, these were connected to the existing header and involved forming new connections and capping off the existing.

Works comprised of a crane lift from the general access road and involve the temporary resighting of 1 No. temporary chiller and then a staged lift to lower the new equipment onto the end of the existing plinth, equipment was then moved into final positions to allow the next piece of equipment to the lifted. The lift and installation included the provision of new supporting steelwork , to span the existing retained plinths. The lift sequence was completed over a single weekend and systems restored for operation ahead of Monday.

The new units were then connected on a phased basis using pre-fabricated pipework. The pipework prefabrication was possible following a point cloud scan of the roof area. This allowed a significant saving in time and allowed 2No. ASHPs to be brought online and supporting the temporary chiller initially before switching to provide the entire cooling requirement for the building. The remaining units brought online once the temporary chiller was disconnected following an agreed proving period.

LV panel installation and new cabling was completed within the basement LV switch room, this allowed the splitting of the supplies from the dual cable feed to provide single feed to each of the AHSPs.

Upgrade works were also undertaken to the associated BMS components and changed to control the sequencing and operation of the ASHPs The project was completed successfully, on time, and within budget over a period of four months.