[ozne64]

hi guys, i have a briant plus80 furnace,and when i had the furnace fix by a friend in the winter,i told him to switch the blower on hi for the heat.now that the summer is here i like to switch the blower on hi for the cold air that now runs on low.my friend at the time told me that when i was ready to do that ,i should just switch yellow wire and black wire ,but i'm not shure what he meant.am i supposed to switch the wires?mean put the yellow where the black is now ?
if you have any idea on how to do this ,help will be appreciated
thanx