After some email communication with Keith Thorne and Elli, I've added limits at 32,500 to the channels L1:TCS-ITMX_CO2_CHILLER_OUT_GAIN_OUT and its y-arm sibling.  This has also been done at LLO.

These channels have a static output on them, and are used to set the chiller temperature for the TCS CO2 lasers.  The value is not changed, and will not be at all affected by the limit being put in place.