As I understand it, the temperature sensors for the LVEA were moved away from the walls so the HVAC system would be less influenced by the OAT (outside air temperature) wagging the buildings interior temperatures around. Such as the detector chambers getting warmer as the HVAC stepped it up to deal with declining OATs. This is most clearly evidenced at the quad suspension with sagging due to warming blade springs. These temperature swings impact not only SUS V but the SEI BRS and potentially ASC.
This temperature sensor move from the walls to interior locations has not been done at the end stations.
The first attached plot shows twenty days of the ETMX M0 Vertical and the EndX OAT. The M0_V has been shifted -20000 seconds where it shows a nice correlation with the daily temperature cycles as well as the longer term trend.
The corner station OAT sensor is not reading reasonable numbers at the moment and it looks like it has been that way for a few months (FRS 9765.) Maybe it is reasonable to use the End Station OAT for comparison but instead, on the second attachment is the EndX and the ITMs M0_Vs. I've shifted them onto the Y area to allow more zoom. Clearly EndX has much larger daily and longer term response to the OAT, maybe about a factor of two.
The temperature sensors were NOT moved away from the walls. What we did do is install an additional 6 temperature sensors at the chambers and these are used in a combination with the existing wall sensors to control the temperatures in the LVEA.