Greenheck Wiring Diagram. Web greenheck exhaust fan wiring diagram. Before connecting power to the unit, read and understand the following instructions and wiring diagrams. Greenheck Exhaust Fan Wiring Diagram Sante Blog from santeesthetic.com Web greenheck exhaust fan wiring diagram from tse1.mm.bing.net. April 25, 2021 by wiring digital. Web greenheck exhaust fan wiring diagram.