Alex Nikiforuk (2) and Robert Farmer got the goals as Nottingham sealed a 3-1 success in the second leg.
Trevor Johnson put Manchester in front early in the second session, but Jeff Mason quickly tied the game.
Mario Valery-Trabucco and Matt Bissonnette made it 3-1 before the 30 minute mark, before Steve Saviano reduced the deficit to one late in the period.
Chris Higgins made it 3-3 after 48 minutes to leave next Tuesday’s second leg in Belfast finely balanced.
(Image permission: Karl Denham)