VCT levels Flashcards
LT-115
Power Supply?
IB-7
LT-112
Power supply?
IB-9
51.6”
Does what off of what Transmitter?
LCV-115A Diverts to CVCS HUT (Override)
LT-115
45.6”
Does what off of what Transmitter?
LCV-115A stops diverting to CVCS HUT (override removed)
LT-115
24.4”
Does what off of what Transmitter?
Auto make up stops
LT-115
20.2”
Does what off of what Transmitter?
Auto make up starts
LT-115
16.6”
Does what off of what Transmitter?
High/Low Level clears
(LCV-115C opens , LCV-115B Shuts)
Both LT-115 & LT-112 required 2/2
12.4”
Does what off of what Transmitter?
High/Low level alarms
(LCV-115C shuts, LCV-115B opens)
Both LT-115 & LT-112 required 2/2
30”-39”
Does what off of what Transmitter?
LCV-115A normal diversion to CVCS HUT
LT-112
Whats the difference between LT-115 and LT-112 normally?
LT-115 controls Auto makeup, can override LCV-115A, and is needed for High/Low level alarm and reset (2/2)
LT-112 controls normal LCV-115A diversion and is needed for High/Low level alarm and reset (2/2)
Switch in Hagan Rack 19 does what?
Can be taken to LT-112, or LT-115 position from Normal, causes associated LT to take full control of VCT level controls.
If LT-112 fails high what happens?
- LCV-115A diverts to CVCS HUT
- LT-115 will start a automake up once 20.2” is reached in VCT because of diversion.
- Remember 2/2 is required for lo-lo lvl in VCT
If LT-112 fails low what happens?
- Normal CVCS HUT diversion is lost (30”-39”)
If LT-115 fails high what happens?
- LCV-115A diverts to CVCS HUT
- No auto makesup happen, and no lo-lo lvl swap to RWST.
- Loss of suction to CHG pumps
If LT-115 fails low what happens?
- Continuous auto make up.
- VCT fills causing Hi/Lo level alarm (Makeup > L/D)
- LT-112 causes LCV-115A to divert to CVCS HUT
