Transfers ToCSUDescriptionAdvanced methods of investigating and servicing refrigeration system components: Medium and low temperature refrigeration; defrost methods; controls; accessories; and commercial equipment; troubleshooting practices on commercial refrigeration equipment; electrical diagrams, service diagnostic procedures, maintenance, troubleshooting and repair, proper charging, leak testing, evacuating and recovering methods, including safety practices.Usually HeldFri 6:00pm–8:50pm, Mon 5:00pm–6:50pm 