Perform preventive maintenance duties in accordance with C&W standards, building protocol, manufacturer recommendations and industry best practices. including changing filters, cleaning coils, flushing condensers, punching tubes, greasing fan, pump and motor bearings as required, inspecting and adjusting belts, replacing motor bearings, aligning pulleys and shafts, monitor condenser, chilled, heating and secondary water chemical treatment and its associated feed equipment, clean and maintain cooling towers, and perform annual inspections and other scheduled routines as directed.