Air conditioning and refrigeration mechanics assemble, install, maintain and repair air conditioning and refrigeration systems and equipment.
(a)     Tasks include -
interpreting blueprints, drawings or other specifications;
assembling, installing and repairing components such as compressors, motors, condensers, evaporators, switches and gauges for air conditioning and refrigeration systems;
connecting piping and equipment by bolting, riveting, welding or brazing;
testing systems, diagnosing faults and performing routine maintenance or servicing.