OFFICIAL REFRIGERATION MECHANICAL VACANCY - RJ - Perform preventive and corrective maintenance of CHILLER, checking conditions of chilled and condensed water flow and electronic and antifreeze thermostats, reviewing high and low pressure switches, measuring pressures and amperages, cleaning coils, rod condensers, inspecting cooling towers and chilled and condensed water pumps, regulating temperatures, monitoring noises and other abnormalities, changing compressor oil and system filter dryer, retightening screws, replacing oxidized terminals and cables, changing fuses, compressors, fan motors, as well as reviewing the electrical part, aiming at the production of chilled water for the Fancoil.