Good afternoon! Ok, the back side of the relay consists of 3 wires, a Yellow which is the common wire to the relay contacts, a Red wire which is the normally closed contact wire and a Black wire which is the normally open contact wire. Those were the first set of instructions I gave above, here they are again as they relate to the three wires on the back of the relay that need hooked up:
On the fan relay high voltage connections, Yellow on the fan center is common, Red is normally closed and Black is normally open. The yellow wire goes to the yellow wire that goes to the fan limit terminal 6, Red goes to the black wire that goes to fan limit terminal 4 and Black on the fan center goes to the fan on or cool motor speed directly to the motor at Red, Yellow, Blue or Black depending on which speed you want when fan on or cooling is called for by the thermostat.
The one thing I noticed I didn't tell you is where to hook the line and neutral black and white wires for the transformer power. The white wire will connect to the incoming neutral where it also connects to the white wire going to the blower motor. The black line wire from the transformer will connect to the Red wire that goes up to terminal 5 on the fan and limit control.
The two low voltage coil wires from the back of the relay should already be hooked up to the front terminals of the fan center at C and G.
Let me know if you need more clarification.