I saw your entry on the device list, and I'm slowly working my way through that list. I've gotta admit, though, that I'm having a heck of a time figuring out how to deal with many of the AC ir protocols; for some reason, air conditioners seem to have protocols dozens of times more complex than those used for TVs or DVD players.

Edit: Hey, it turns out that one of the experts at the JP1 website finally managed to crack the checksum being used in the protocol for this remote (just a couple of weeks ago, in fact). But man, what an insanely complicated protocol they use... It seems that, due to the state information maintained inside the remote, every command has to dump the entire set of state information to the A/C in order to keep them in sync. At least, that's my guess.

I'm not going to give any estimates as to how long it'll take to get this into Pierogi, as I don't know how long it'll take to actually wrap my head around the whole thing. But you can check out The Robman's amazing work here.