Air Equipment Mechanic A10

marine corps community services (mccs) is looking for the best and brightest to join our team! Mccs is a comprehensive program that supports and enhances the quality of life for marines, their families, and others in the marine corps community. We offer a team oriented environment comprised of military personnel, civilian employees, contractors and volunteers who keep the organization functioning smoothly and effectively.

• summary of duties: installs, inspects, repairs, troubleshoots and recognizes the cause of faulty equipment and makes repairs on large systems that provide a variety of air conditioning functions such as heating, cooling, humidifying, dehumidifying, cleaning, filtering and circulation for large office buildings with various electronic equipment. Repairs domestic and commercial refrigeration and air conditioning units and systems, such as walk‑in and reach‑in coolers, refrigerators, freezers, ice‑makers, water fountains, self contained and remote compressor units, and other equipment of comparable complexity to maintain proper humidity and circulation.
  
  Provides world class customer service with an emphasis on courtesy. Assists customers and communicates positively in a friendly manner. Acknowledges customers, smiles and makes eye contact. Asks questions to determine, verify and solve problems. Checks for satisfaction on the quality of goods and services. Takes action to solve problems quickly. Alerts the higher level supervisor, or proper point of contact for help when problems arise.
  
  Adheres to safety regulations and standards. Uses required safety equipment, and observes safe work procedures. Promptly reports any observed workplace hazards, and any injury, occupational illness, and/or property damage resulting from workplace mishaps to the immediate supervisor. Adheres to established standards of actively supporting the principles of the eeo program and prevention of sexual harassment. May be required to travel for temporary duty assignment.
  
  Performs other related duties as assigned.

• see duties and qualifications

evaluations:

skills and knowledge: must have knowledge of refrigeration cycles of a variety of commercial and industrial systems to locate and check elements such as those which control low side and high side pressure, temperatures of the cooling units, temperatures of liquid and suction lines and the running time of various mechanisms. Skill to determine the proper kind and type of parts and equipment needed for installation or repair in planning and completing work orders.

May work from building plans, shop sketches or blueprints. Must know principles and theories of air conditioning and refrigeration cycles, heat transfer laws, use of refrigerant tables, calculation of airflow and pressure‑temperature characteristics for different systems. Skill in locating leaks by visual and audible examination of equipment components and how to locate trouble before dismantling. Must be familiar with the more complicated motor controls such as sealed motors, pressure controls, thermostatic motor controls (remote and double remote), full and semiautomatic defrosting controls, relays and other controls to protect against overheating.

Must know characteristics of compressors, such as gear, reciprocating, centrifugal or rotary pump and a variety of refrigerant controls such as those with low and high pressure side floats, automatic thermostatic expansion valves, capillary or choke types and those based on volume or quantity changes. Must know how to dismantle, repair and reassemble units such as pumps, impellers, compressors, chillers, receivers and evaporators.

Skill to overhaul valves by adjusting or replacing…