Its pretty simple. Do you have the manual?
http://www.team-orion.co.jp/web/inst...series_ESC.pdf

Press the button on the ESC then turn on your transmitter. Once you turn on the transmitter you will see red lights start to flash. Let go as soon as this happens for calibrating.

If you want to make adjustments then hold the button for one second after everything has been turned on as the manual indicates