From your timer
Green-ground to the box
White-goes to the big bunch of white wires
Blue-I am guessing this is the switched(check the instructions) will
go to the single black from your excisiting switch.
Black-This is probably your hot, goes to the two black wires that are
under the one screw.
Green-ground to the box
White-goes to the big bunch of white wires
Blue-I am guessing this is the switched(check the instructions) will
go to the single black from your excisiting switch.
Black-This is probably your hot, goes to the two black wires that are
under the one screw.