LOT 202.32 RCB Chilled Water

Question 1

• LOT 202.32 RCB Chilled Water*
• • *

What fills the RCB chilled water expansion tank?

Answer 1

Demin Water

Question 2

• LOT 202.32 RCB Chilled Water*
• • *

Where are the RCB Chilled Water pumps, chillers, and expansion tank physically located?

Answer 2

• Pumps:*
• *10’ MAB**
• Pen Space*
• Chillers:*
• *29’ TGB**
• South End*
• Expansion Tank:*
• *60’ MAB**
• By RCB Personnel Airlock*

Question 3

• LOT 202.32 RCB Chilled Water*
• • *

What is the purpose of the RCB Chilled Water System?

Answer 3

• *Cools the RCFCs**
• CCW cools during SI or LOOP*
• *RCS Vacuum degassing System**
• Cools compressor*

Note:
Do not really use the RCS Vacuum degassing system.

• “I thought it was abandoned” -Dewoody 4/5/18

Question 4

• LOT 202.32 RCB Chilled Water*
• • *

With regards to the RCB Chilled Water system, what happens during a SI or a LOOP?

Answer 4

• RCFC Chilled Water OCIVs:*
• *Close on SI OR LOOP**
• RCFC CCW OCIVs:*
• *Open on SI**
• *Remain Closed on LOOP**
• Operators must open them (30 min req. [EOPs])*

RCFC CCW OCIVs will NOT open unless Chilled Water OCIVs shut.

• Note:*
• If SI and LOOP happen concurrently, SI wins and CCW OCIVs open.*

Question 5

• LOT 202.32 RCB Chilled Water*
• • *

Why do the RCFC train “B” valves have a power lockout feature?

Answer 5

• *Physical location of valves are below the water line during a LOCA in RCB.**
• Secure Power once valves are open*

Located on CP002

Question 6

• LOT 202.32 RCB Chilled Water*
• • *

What will auto-start a RCB Chilled Water pump?

Answer 6

Trip of running pump

Pumps can be started locally (29’ TGB by chillers) or remotely (CP022).

• Need any 1 pump w/ any 1 chiller.
• 3 pumps and 3 chillers in system.
• Normally 2 pumps and 2 chillers running.

• Note:*
• All RCB Chilled Water Alarms located on CP022*
• RCB CHLR TRBL
• RCB CHLD WTR PUMP TRBL
• RCB CHLD WTR EXP TK LVL HI/LO

Question 7

• LOT 202.32 RCB Chilled Water*
• • *

What cools the RCB chillers?

Answer 7

OLACW