Add Time Delay to 772-1F Main Exhaust/Supply Air Interlock Circuit CX(s) Applied: B2.3 Date: 11/10/2011 Location(s): South Carolina Offices(s): Savannah River Operations Office
Office of NEPA Policy and Compliance
November 10, 2011
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Add Time Delay to 772-1F Main Exhaust/Supply Air Interlock Circuit
CX(s) Applied: B2.3
Date: 11/10/2011
Location(s): South Carolina
Offices(s): Savannah River Operations Office
During routine 772-1F Main Exhaust (ME) Fan rotations, the air Supply Units (SU) will shut down due to activation of the Main Exhaust System pressure switch. Installation of an adjustable time delay relay within the circuit of ME header pressure switch will allow recovery without shutting down the SUs.
CX(s) Applied: B2.3
Date: 11/10/2011
Location(s): South Carolina
Offices(s): Savannah River Operations Office
During routine 772-1F Main Exhaust (ME) Fan rotations, the air Supply Units (SU) will shut down due to activation of the Main Exhaust System pressure switch. Installation of an adjustable time delay relay within the circuit of ME header pressure switch will allow recovery without shutting down the SUs.