LOCATED ON THE MAIN CONDENSING (WATER) TOWER, ARE FOUR SOLID-STATE VARIABLE SPEED MOTOR CONTROLLERS. THREE OF THESE FOUR CONTROLLERS HAVE OR ARE FAILURE AS A RESULT OF RECORD COLD WINTER TEMPERATURES. REPAIR BY LIKE FOR LIKE REPLACEMENT OF THE THREE FAILED UNITS IS NECESSARY TO PROVIDE AIR CONDITIONING TO THE HWSSC DURING SUMMER OPERATION MODE BEGINNING IN APRIL 2019. THE THREE REPLACED UNITS NEED TO BE COMPATIBLE WITH THE TYPE (HORSEPOWER) OF THE EXISTING UNIT, AND TO AVOID THE EXPENSE OF CHANGING OR TRANSLATING THE OPERATING LOGIC OF THE EXISTING UNIT IN THE BCS OPERATING PROGRAM. PROPER CONDENSING TOWER OPERATION IS ESSENTIAL TO SUMMER OPERATION OF THE FACILITY. CRITICAL EMERGENCY PROCUREMENT.