Project: Central chilled water plant for a large University
Solution: HVAC designed a portable system that provided the required cooling capacity.
A central chilled water plant at a major University was converting a 3000 ton
chiller from using refrigerant R-12 to the environmentally friendly R-134a.
The time required to convert the chiller meant the central plant would not
have enough cooling capacity as the summer months approached.
The plant's engineers were asked to implement a plan that would provide additional cooling capacity to
the main chilled water system. The engineers determined that 1500 tons of additional capacity would be
sufficient until the chiller being converted was put back into operation.
Carrier Rental Systems designed a system that would provide the required cooling. In addition to the system design, the plant engineers were given a project schedule depicting the series of events required to install and startup the system.
The systems consisted of three 500 ton chillers with matching cooling towers. Each tower had a dedicated pump that supplied cooling water to the chillers. The chillers delivered 45 degree F water to a 12" custom manifold. A single chilled water pump was used to supply 3000 gpm from the manifold to the main chiller water loop located in the central chilled water pump. HVAC provided a transformer to step down the University's 4160 volt power supply to 480 volts need for the equipment.
