Chandra R., Kyle R.

Today we successfully demonstrated that the energize-to-open/spring-to-close "SAFETY VALVE" located at the exhaust of the to-be-installed turbo pump on the Vertex Turbo Station would close with the absence of the QDP80's "PUMP RUNING" signal for both the "ROUGH" and "TURBO" selector switch positions.  This same test failed last week as, at that time, we had had the local scroll pump running with its intake valve open independently and simultaneously to the QDP80 pump that we were testing.  In the control panel's logic, if either or both baking pump (scroll and/or HEPTA -> QDP80 substituted for HEPTA here) is running and its intake valve is open, then the SAFETY VALVE can be opened and will remain open.  Thus, cycling the QDP80 last week didn't result in the SAFETY VALVE closing as the logic remained satisfied by the scroll's status. 

Also, I finished terminating the YBM TURBO STATION-to-HEPTA signal cable at the turbo end in the LVEA.