Moreno made his switch to the Reebok on transfer deadline day, completing a season-long move from Benfica despite recently penning a five-year deal in Portugal.
Coyle is understood to have tracked the 19-year-old throughout the summer while he was at Real Madrid before seeing him move across the Iberian border as bait in Angel Di Maria's move to the Bernabeu.
Coyle eventually captured his man and the striker says he is delighted to be at Wanderers, revealing the hard work of his boss has geared him up for the campaign.
Moreno told the Manchester Evening News: "I'm very excited to make such a big step in coming to the best league in the world. The manager has known about me for a long time.
"Because he has been pushing for a transfer to bring me here, then it motivates me a lot. I want to give back to the club all the confidence that they have shown in me.
"I'm very much impressed with the stadium and the training ground. I already knew that Bolton are well-established and respected in the Premier League.
"But now I have an even better idea of how big a club this is. I want to thank everyone at the club for helping this transfer become possible."
Moreno's move to Lancashire sees him link-up with former Madrid team mate Marcos Alonso, who also left Spain in the summer.
The Brazilian born front man said having his compatriot would help him settle into his new surrounds.
"I played with Marcos last season," added the former Spain Under 19 international. "He is a great player and a great friend.
"Hopefully, he will help me adapt to the English way of life because he has been here a month already.
"I can speak Portuguese and Spanish and I'm already looking forward to learning English because it will help me with the rest of my life."
Source: Team Talk
Source: Team Talk