Nam, who has to start from the qualification round, met some difficulty in the first set before dominating in the second when he nabbed two break points for a persuasive win.
Nam, who is the Wimbledon boys' doubles champion, will play Kim Cheong-eui of the Republic of Korea next.
Kim, who is seeded No 5, won 6-3, 6-1 over Japanese wildcard Katsushi Fukada in an earlier match yesterday.
The F3 Futures event on hard surface will close on December 13, with US$10,000 delivered to the winners.