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This technical drawing sheet appears to be part of the mechanical specifications for the TDF dietary unit cooler retrofit project in Rushville, Illinois. The document contains multiple detailed diagrams including an outline drawing (labeled "ET-3"), electrical end views, control panel layouts, and installation specifications for an Enviro-therm unit with dimensions of 110" width and varying heights shown in different views.

The drawings provide comprehensive technical details including drain line specifications requiring 1/2" fall per foot minimum with 7/8" nominal copper piping, electrical defrost wiring diagrams (ED-26), and typical wiring diagrams for cooler installations with 120-volt fan motors. Key installation requirements specify a unit weight of 2,897 lbs and mandate 3-foot clearance on all sides. The document also includes a refrigeration schedule chart showing multiple cooler units with their respective model numbers and specifications, though some details are partially visible in the provided image. Installation notes indicate requirements for level platform installation, sheetmetal lap seams, and proper pitch for condensate drainage.