Reports until 07:41, Monday 04 March 2024
LHO FMCS
eric.otterman@LIGO.ORG - posted 07:41, Monday 04 March 2024 (76089)
LVEA AHU setpoints
The air handling units at the corner station have been operating with many functions in a manual setting. This has taken automatic control away from the DDC system and made for inefficiencies throughout the system. After discussing with Richard, we have given automatic control back to the supply air temperature set point function as well as to the dampers to see what effect this has in terms of efficiency and temperature control of the LVEA. Because the dampers will now modulate more frequently, this will cause fluctuations in the vibrometers that will be evident in the trends. These changes in control will be evaluated over the next couple days to determine effectiveness.