Pre-purchased Equipment Electric Centrifugal Chillers Bid Set A. Provide ten (10) 1,250 ton chillers or five (5) 2,500 ton chillers configured to operate in series-counterflow arrangement. Electric, 480V, factory assembled, centrifugal chillers complete with compressor, motor, unit mounted variable speed drive (VSD) / adjustable frequency drive (AFD), evaporator, condenser, microprocessor based integrated controls, graphics and all required ancillary equipment including permanent refrigerant pump out unit. The chillers will be field installed to operate in a headered, variable primary chilled water pumping system. The chillers will also be connected to a headered condenser water system with five (5) field erected cooling towers. B. Each series-counterflow chiller or pair of chillers shall have a guaranteed capacity of 2,500 tons at the design conditions that are listed in the table in Part 5 of this section. C. The maximum chiller dimensions for each individual chiller in the series-counterflow pair cannot exceed the following 1. 1,250 Ton Series-Counterflow chillers: a. Overall unit length: 24’-6”. b. Chiller width including unit mounted VSD: 11'-9". c. Chiller height: 12’-0”. 2. 2,500 Ton Series-Counterflow chillers: a. Overall unit length: 29-0”. b. Chiller width including unit mounted VSD: 13'-6". c. Chiller height: 12’-0”
