RQ-C-4822 (CVCS) Flashcards
1
Q
Where does letdown come from
A
Loop 4 cold leg (both normal & excess)
2
Q
Where does RHR tap into letdown
A
Upstream of the letdown heat exchanger
3
Q
Where does the VCT safety valve discharge to
A
CVCS HUTs
4
Q
Does QFI-200 include seal injection flow
A
YES. This is total charging flow
5
Q
Which loops do we normally charge to
A
Loop Cold Leg 1 (alt) and Loop 4 Cold Leg (Normal)
6
Q
What auto closes QRV-111/112
A
Pressurizer level <17%
7
Q
What auto closes QRV-160, 161, & 162
A
- Phase A
- QRV-111/112 closure
- No CCP running
- Pressurizer Level < 17%
8
Q
What auto diverts QRV-302 (Demin Divert Valve)
A
Letdown temperature >143 deg F to protect demineralizers
9
Q
What auto diverts QRV-303 (VCT divert)
A
- High level in VCT
10
Q
What auto starts CCPs
A
- SI
