This includes recovery and reclaim, refrigerant manifolds, pressure regulators, vacuum pumps, oil pumps, digital scales, psychrometer, thermal imaging, electric drills, pipe and thread cutting equipment, wheel pullers, soldering, step ladders and extension ladders, pry bars, bending and flaring tools, and other related tools. Requires a well-rounded knowledge of refrigeration and AC principals, and the construction and operation of industrial type air conditioning installations, refrigeration system components and applications and application of pneumatic and electrical/electronic controls.