ABILITY TO: Follow oral and written direction; demonstrate mechanical ability; keep accurate records; install, operate and make repairs to the various types of equipment listed above in the knowledge requirements; make written reports, read, interpret, and work from plans, drawings and specifications; lay out work for others and direct them in this work; analyze situations accurately and take effective action. Operate, Maintain, Troubleshoot, Install and repair; heat pumps, mini splits, package units, split systems, exhaust fans, natural gas furnaces, heat exchangers, air handlers, chillers refrigeration systems, controls, all pumps, and replace bearings/shafts where necessary.