Air Conditioning Equipment Mechanic

Air Conditioning Equipment Mechanic

The duties include but are not limited to the following:

• Incumbent has skill and experience in troubleshooting, calibrating, installing and repairing a wide variety of heating, ventilating, air conditioning and refrigerating equipment, which operate within critical tolerances and specifications. Incumbent use knowledge of the refrigeration cycle of a variety of commercial and industrial systems to locate and check elements such as those which control low side and high side pressure, the temperature of the cooling units, the temperatures of the liquid and suction lines, and the running time of the various mechanisms.
• Incumbent checks for the probability of leaks by visual and audible examination of equipment components; by applying prescribed test procedures and equipment; and by exploration of probable reasons for equipment failure. Incumbent know principles and theories of air conditioning and refrigeration such as the refrigeration cycle, heat transfer laws, the use of refrigerant tables, how to calculate airflow, and the pressure temperature characteristics for the different systems in order to locate and repair faulty equipment swiftly and to reduce inoperative time to a minimum. Incumbent has skill and knowledge to troubleshoot and locate trouble before dismantling, and to make repairs, which insure proper functioning after assembly.
• Incumbent has the skill and knowledge, to work on systems that include a variety 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. A variety of complicated motor controls are also used such as hermetically sealed motors and pressure controls, thermostatic motor controls (remote and double remote), full and semi-automatic defrosting controls, relays, and other controls to protect against overload or overheating.

Work Schedule: Monday - Friday, 0730-1600, 0800-1630

Position Description Title/PD#: Air Conditioning Equipment Mechanic/PD01018A

Physical Requirements: Incumbent must wear appropriate safety gear, including full-face and half-face respirators when accomplishing work on certain equipment. This protective gear can place additional effort on employee in accomplishing work. Incumbent works from ladders, scaffolding, platforms, motorized high-lift, etc. as well as other hard to reach places. Incumbent stands, stoops, bends, kneels, crawls, climbs and works in tiring and uncomfortable positions for extended periods of time. Because the equipment in the air handling system is usually larger and must be maneuvered into and out of specific locations while dismantling and reassembling, the incumbent frequently lifts and carries tools, parts, equipment and material that weigh up to 50 pounds and less often up to 40 pounds. Grade 10 mechanics frequently carry and set up parts and equipment that weigh up to 23 kilograms (50 pounds). Hoists, holders, and pulleys are operated when removing units such as large compressors, condensers, and chillers. Incumbent make repairs and installations from ladders, scaffolding and platforms where the parts of systems worked on are frequently in hard-to-reach places; therefore, stooping, stretching, bending, crawling and kneeling are frequently for long periods of time.

Working Conditions: Incumbent is subject to be exposed to disagreeable fumes, work in oily or greasy areas, exposed to burns, cut, bruises, electrical shock and low environmental temperatures and possible exposure to live steam. They are occasionally required to work outside, on top of tall buildings, in hot or cold, cramped crawl spaces with low overheads.