are you saying you put the hsc on top of a box w/ other types of frames? I have personally only really used HSC on swarms, or shook swarms, the only place I gave the queen to lay was HSC. I have tried a few frames of it here and there (mixed in) and only some hives will use it, when they really have to, others won't touch it.
I would also think that spring/ early summer may be the best time to "force" bees onto HSC
If you really want to go with the hsc now, I would: take some of the HSC that bees in your other hive have used (maybe 2 frames) and swap it with empty HSC from the untouched box. this might get them started on using it because they will most likely accept these frames (that have been used by bees), get up into the box, and then start on the other frames...
Or/ also try filling (painting on) or dripping into the HSC combs heavy syrup/ honey... the bees may clean these out and then start using it. I plan to try this with a bunch of "cut off" HSC pieces (I cut them down to mediums) in nucs, not quite sure how the pieces are going to fit together yet though
good luck!