CRAC Construction Project:
Replacing and Maintaining Outdated HVAC Systems for Server Room Cooling
Director, Data Center Services,
For several years, the client had been renting four portable AC units and two supplemental diesel generators, totaling 50 tons of cooling capacity to keep server rooms operational. There was no effective method of heat removal, and in the summertime, the dry coolers were kept online with sprinklers. Improper maintenance of CRAC systems led to a dependence on the rented units, reducing energy efficiency while increasing costs and the frequency of emergency HVAC calls. Eventually, the CRAC systems could no longer reliably support mission-critical server rooms.
Donnelly Mechanical won the competitive bid and was awarded the replacement and maintenance project, which included:
- Proper cleaning of all dry coolers
- Installing return ducts from hot aisles to CRAC units for improved heat removal
- Installing 30 tons of permanent back up air conditioning units
- Replacing an overworked 30-ton dry cooler with a more efficient model
- Properly maintaining all CRAC units on an ongoing basis
With precision and expediency, Donnelly delivered the CRAC construction project on-time and on-budget. Through expert planning and coordination, Donnelly minimized downtime to keep mission critical systems operational. Cooler now than it has ever been, the server room no longer requires costly rented systems and generators to protect the equipment and ensure uptime. Donnelly now provides preventative maintenance, ensuring that the CRAC systems are properly maintained and functioning optimally to efficiently remove heat from the server room. Donnelly’s client hit their ROI targets for the project, reducing costs and increasing efficiencies and uptime.