It is commonly believed that Nicolaus Copernicus is the creator of the heliocentric model, but the heliocentric model actually existed before Copernicus. It is believed that the heliocentric model existed as early as 200 B.C. created by a person named Aristarchus of Samos.
The heliocentric model is the one that has the Sun at the centre and the Earth the third planet out. We don't use the heliocentric model of Copernicus with its circles and epicycles, that was superseded by Kepler's model, but we still have the Sun at the centre.
I believe you are confusing two things here; there is no such thing as a "heliocentric model of telescope". There is a heliocentric model of our Solar System, and there are telescopes. The two are unrelated.
He is worth knowing about because he revived the Heliocentric model Some say that he reveled the Heliocentric model but he didn't But he was the first person to try to push people to to believe in the Heliocentric model