kyle.ryan@LIGO.ORG - posted 15:07, Thursday 04 September 2014 (13760)
Restored pumping configuration at Corner Station (with caveats) following recent X-end look
Soft-closed GV7 (this valve will be opened again in a few weeks and we seek to minimize hard closures) -> Added scroll backing pumps to YBM and XBM turbos (in parallel to QDP80 pumps and independently isolatable) -> Valved-in aux. pump carts to HAM5/6 and HAM4 annulus' -> Valved-in YBM and XBM turbos backed only by scroll pumps -> Shut down QDP80s -> Valved out IP1, IP2 and IP6 The pressure at the X-end is OK to leave open to BT (saves a cycle of GV20)