Specifications include, but are not limited to: The Vendor shall perform the procedures necessary to “startup” and “shutdown” the chillers in accordance with the manufacturers’ recommendations. Start and shutdown times will be determined by the State, and will vary from location to location. Should startup be required before May 1st or shut down after September 30th, the State will be responsible for cooling tower draining and refilling in the event of freezing temperatures. 5.The Vendor shall clean all condenser tubes once each year in order to remove all scale and sludge. The Vendor shall use either chemical or mechanical means to accomplish the above, but if chemical means are used the Administrator, Bureau of General Services must be notified so that he/she may inspect and approve the cleaning. The Vendor shall be responsible to clean evaporator tubes if required to maintain the chiller in proper operating condition.