The case supports 90mm of internal top space with top 360/420mm and bottom 140/240mm radiator support for unmatched liquid cooling.
The h100 has a radiator dimension of 122 x 275 x 27 mm , therefor I believe you would have to top mount it as you would not have enough room on the bottom. You would have to remove the top panel vent and instal it there.
240mm rads are usually actually about 280mm long... if NZXT is saying it can fit a 240mm rad bottom the h100 would fit there as well... though it may be an issue getting the block to the cpu.... but the short answer to the question is yes
fyi the "240" part of the description means 2x120mm fans can fit on it... their are mini reservoirs at the end where the fittings go in extending the length beyond the 240mm... it's the same with all radiators.