Murphy Company was tasked as the design-build contractor to upgrade the more than 20-year-old chillers at the Amgen Lake Center building when AstraZeneca purchased the facility and began remodeling it. Murphy served as the general contractor overseeing all the support subcontractors including the electrical contractor, temperature controls contractor, mechanical insulation contractor, refrigerant recovery contractor, glycol recovery contractor, and general construction contractor.
Murphy Company approached the project with a phased demolition and installation of the chillers in order to keep the chilled water plant operating throughout the duration of the project. Piping modifications were required to accommodate the new chilled water and condenser water connection locations of the new chillers. Murphy reclaimed R-11 from two chillers and recycled it per EPA guidelines. Reclaimed glycol from the system was also recycled. Our team also demolished and recycled two existing 1993 York Chillers and installed two magnetic bearing York/JCI Chillers.
Our team also reconfigured the plant chilled water and piping and condenser water piping to accommodate the new layout of the chillers. Upgraded the BAS/Temperature Controls associated with the new magnetic chillers. Once both new chillers were installed, Murphy oversaw the full commissioning of both chillers to ensure they operated and performed per the owner’s expectations.
