Harvey Air Conditioning has considerable experience in undertaking refrigerant, component and compressor retrofits and replacement of such items of plant as cooling towers, chillers, package units, hydraulic systems, etc. Our chiller and cooling tower replacements often involved challenging space and relocation considerations, and often take place in buildings which have remained occupied during the process. These major changeovers have been undertaken with minimum disruption to building occupants.

These mechanical upgrades represent a great incentive to building owners, providing significant cost benefits in terms of energy efficiency and improved control systems.

This major project undertaken for Lend Lease Developments, encompassed an upgrade of the existing HVAC system to include replacement of outside air VCD’s and cooling coils, removal of old and installation of new chiller, two cooling towers and an upgrade of the BMS system.

The large chiller had a split evaporator and condenser vessel and the four pieces had to be taken to the plantroom via the elevator and the whole chiller reassembled on site.

Work was conducted whilst the building was occupied, with a program for work that could be undertaken during and outside of work hours.

This project undertaken for Jones Lang LaSalle involved the decommissioning of the existing water cooled chiller and the installation of a VSD frictionless water cooled chiller. This included a new cathodic protection system for the chiller, modifications to the existing chilled water pipe system, installation of a water treatment system for the condenser water and chilled water systems.

It also included modifications to electrical switchboards and existing controls system and an update of the Building Automation System.

These works were conducted whilst the building remained occupied.