Duties may include but are not limited to the following: Installs, maintains, repairs and/or operates all refrigeration, air conditioning, and heating, their control systems and related equipment at Ventura County Medical Center and Santa Paula Hospital; Coordinates schedules for preventive maintenance and repairs; Performs layout work, interprets drawings and schematics, prepares sketches, makes material take-offs and estimates costs; Coordinates with Building Maintenance involving other building trades and works with skilled and semi-skilled workers on major installation and repair projects; Drives a county vehicle between hospitals to respond to maintenance and facility related issues; Transports tools, equipment, parts, and other materials necessary to perform duties between hospitals; Climbs and works from ladders and elevated platforms to access, inspect, service, repair, and install equipment; Accesses and services rooftop units, equipment, and other elevated HVAC components; and. KNOWLEDGE, SKILLS and ABILITIES: Thorough knowledge of: modern mechanical refrigeration systems, including specialized refrigeration systems for both refrigerators and freezers; modern air conditioning and heating systems (gas, electric, and water heating and cooling systems); chemical treatment for boilers, hydronic cooling and heating systems and cooling towers; control systems used in modern refrigeration, heating, and air conditioning systems; record-keeping; time management in order to complete assigned work/fulfill responsibilities; safety regulations; safe driving practices and traffic laws; and building management systems.