Under immediate supervision of a Senior Engineer and/or Physical Plant Engineer, directs and/or supervises University plumbers, electricians, preventive maintenance mechanics and refrigeration mechanics engaged in the operation, maintenance and repair of building support equipment in assigned buildings or University grounds. Assists in preventive maintenance and repairs on commercial refrigerators, freezers, ice-makers, electrical air conditioning and heating equipment or systems including chilled water heating and cooling, air compressors, pneumatic controls.