How do I register & commission a Satellites digital shower?

Registering the control panel to the mixing unit; Fit the batteriesTurn water supply on to the shower. Turn electricity on. Turn on mixing unit at isolation switch. The mixing unit will start the registration procedure. The unit will beep intermittently for 30 secs. The unit will revert to a continual tone. If the mixing unit does not beep see fitting instruction for procedure. Ref: moving commissioning link over. With mixing unit emitting a continual tone. Press and hold Associate button (this will have to be done with a thin bladed screwdriver) until the LED on control panel illuminates. Release the button the LED will remain illuminated. When the continual tone stops the LED will extinguish and the mixing unit is then registered.