The primary purpose of the position is to perform a wide range of work involving installing and recognizing the cause of faulty refrigeration, chiller and air conditioning equipment and making repairs on large systems that provide for a variety of air conditioning functions such as heating, cooling, humidifying, dehumidifying, cleaning, filtering, and circulating.
To qualify for this position, applicants must meet all requirements by the closing date of this announcement. EXPERIENCE: A specific length of training and experience is not required, but you must show evidence of training or experience of sufficient scope and quality of your ability to do the work of this position. Evidence which demonstrates you possess the knowledge, skills, and ability to perform the duties of this position must be supported by detailed descriptions of such on your resume. Applicants will be rated in accordance with the OPM Federal Wage System Qualification Standards. SCREEN-OUT ELEMENT: Your qualifications will first be evaluated against the prescribed screen out element, which usually appears as question 1 in the on-line questionnaire. Those applicants who appear to possess at least the minimal acceptable qualification requirement are considered for further rating; those who do not are rated ineligible and are eliminated. The potential eligibles are then rated against the remainder of the Job Elements: Equipment Assembly, Installation, Repair Interpret Instructions, Specifications (includes blueprint reading) Materials Technical Practices Troubleshooting Use and Maintain Tools and Equipment Experience refers to paid and unpaid experience, including volunteer work done through National Service programs (e.g., Peace Corps, AmeriCorps) and other organizations (e.g., professional; philanthropic; religions; spiritual; community; student; social). Volunteer work helps build critical competencies, knowledge, and skills and can provide valuable training and experience that translates directly to paid employment. You will receive credit for all qualifying experience, including volunteer experience. Note: A full year of work is considered to be 35-40 hours of work per week. Part-time experience will be credited on the basis of time actually spent in appropriate activities. Applicants wishing to receive credit for such experience must indicate clearly the nature of their duties and responsibilities in each position and the number of hours a week spent in such employment.
Major duties: Performs a wide range of work involving installation & recognizing the cause of faulty refrigeration, chiller & air conditioning equipment & making repairs on large systems. Identifies faulty equipment causes & makes repairs on large systems that provide for variety of air conditioning functions such as heating, cooling, humidifying, dehumidifying, cleaning, filtering & circulating. Performs complex repairs such as installing and fitting connecting rods, crank shafts, piston rings, bearings, and bushings. Locate and check elements such as those that control low side and high side pressure; the temperature of the cooling units; the temperature of the liquid and suction lines; and the running time of the various mechanisms. Conduct tests of air conditioning units and makes straightforward repairs that can be made without specialized equipment. Examine equipment components visually and audibly for the probability of leaks; and perform prescribed test procedures and explore probable reasons for equipment failure. Calculates airflow and pressure-temperature characteristics for different systems; locates and repairs faulty equipment swiftly in order to reduce inoperative time to a minimum; locates trouble before dismantling and makes repairs which ensure proper functioning after assembly. Assists with the setup of the digital systems controller (DSC) software program for advanced testing of medical center engineering applications; establish air sampling intervals and acquire controller gains via DSC step- testing of the HVAC distribution system. Installs, calibrates, tests and perform maintenance on pneumatic steam and hot water valves, & circulating hot water pumps. Installs, calibrates, tests and pe1forms maintenance on variable air volume boxes and their controlling units. Analyzes and dete1mines the need for flow switch and/or differential press switch modification or replacement. Serves as a technical adviser regarding the operation, effectiveness, maintainability, serviceability, and environmental requirement of equipment, including interrelationships with other equipment and the physical plant. Participates in the formulation of comprehensive preventive maintenance schedules and procedural guides for equipment. Makes daily check of the large refrigeration plants and daily tabulations such as temperatures, suction and discharge pressures and water temperatures, makes maintenance notations of needed repairs and completes emergency repairs as necessary. Isolate troubles in various types of remote and internal mechanical, electromechanical, electrical, refrigeration and air conditioning control devices such as solenoid valves, thermostatic expansion valves, low and high side valves, capillary tubes and various pressure and control valves, and make necessary repairs and adjustments. Work Schedule: Full time, Monday - Friday, 7:30am - 4:00pm Position Description Title/PD#: Air Conditioning Equipment Mechanic/PD42311A Physical Requirements: The work requires carrying of equipment, tools and testing devices that seldom weigh over SO pounds. Most of the equipment can be reached from the floor or from ladders. Occasionally, platforms and scaffolding are needed to reach parts of the systems such as fans, electrical and water lines and duct work. The incumbent is required to stoop, stretch, bend, kneel and work in tiring and uncomfortable positions; and make repairs and installations from ladders, scaffolding and platforms where the parts of systems worked on are frequently in hard-to-reach places.