Specifications include, but are not limited to: Mechanical: Three air-cooled chillers will be installed on the 4th floor roof, one chiller dedicated to each MRI. Piping shall be routed through the 4th floor mechanical room to each MRI equipment room. All piping shall be insulated, and exterior piping will also be heat traced for freeze protection. The piping shall connect to the existing systems upstream of the components required by Siemens (Appendix C). The existing MRI chilled water loop shall remain in service to function as a backup system. Control valves and a bypass will be installed to ensure that cold water is available without interruption. The new chillers shall have manufacturer provided, onboard controls. Integrate each chiller with the BMS for monitoring and alarms as indicated in Appendix A. Provide an add/alternate price to use a Filtrine Quick Connect Panel (or similar). Integrate the existing MRI loop pumps into the BMS and provide new controls as required per the sequence on the drawings. At each location where piping penetrates the roof, provide a piping doghouse or box. Coordinate with Grady’s preferred roofing vendor and provide proper installation. One of the chiller locations is less than 10’ from a roof edge and may require fall protection during maintenance activities. The connection work inside of the MRI rooms shall be coordinated with the Owner to minimize downtime.
