I'm planning to replace the ignition control board on my Carrier gas pack. There's one step I don't understand however. That is, how do I disconnect the ignition wire from the control board?

The ignition wire looks like the spark plug wire on a lawn mower. It connects to what looks like a small coil on the control board. It's not obvious to me how to disconnect the wire and re-connect it to the new control board. Do I just pull it out of the coil? Or is there something I need to do to release it before I pull it out?

Here's a link that shows a picture of the board. The ignitor connector is the round object near one end of the board. It stands up higher than anything else on the board.

thanks!