The IR code for this Toshiba air-con are generated by a LMCE GSD device. This means that there are ruby code that generates the IR code. When I first made this, I used an USB-UIRT to receive the IR signal and decode its meaning, then creating a program that generates equal IR code based on the commands from LMCE.
It has been a long time since I made this, so I can't really help except point to the Ruby code in the LMCE device template.
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sambuca