Only a guess going by my caravan one
four screws in the surrond of the tap unit held it to the work top released and their was enough slack in the pipes and microswitch wires to lift it and release it from pipes and wires. Jubilee clips on pipes and connectors on micrioswitch wires.
Tip Before releasing tie strin around the wires and pipes so if they drop you have a draw string to pull them back up.
Bob
June 2009