Equipment or Machinery Operated: Portable and fixed power and hand tools, oxyacetylene torch, chemical cleaning equipment, protective clothing and safety devices, gauge manifolds, electronic/electric/pneumatic measuring devices, two-way radios, portable vacuum pumps, various refrigerant/heat transfer/lubrication media containers and handling equipment, maintenance rigging equipment, and BAS keyboard/CRI, and CFC leak detection, reclaiming, recycling, recovery systems. Special Job Features: Heavy lifting, use and handling of solvent, acids and heat transfer media, heat and cold, dust and dirt, subject to immunization, safety shoes and glasses, subject to emergency call-in, refrigerant handling, working in confined spaces and roofs and at heights, possible work in areas of potentially infectious agents and available at all times during work shift to answer emergencies.