Containment Vent/H2 Recombiners

Question 1

What heats the instrument room purge supply fan?

Answer 1

Electric heaters

Question 2

What is the purpose of the containment pressure relief fan?

Answer 2

maintain containment pressure within TS limits of -1.5 to 0.3

Question 3

How many trains of CEQ fans are required to be operable in modes 1-4?

Answer 3

2

Question 4

what is the purpose of the containment purge supply / relief fans?

Answer 4

To reduce radiation levels to permit entry.

Question 5

Where do the LVU take suction from?

Answer 5

The intake to the ventilation units is connected via a duct penetration through the crane wall to air intakes from the top of the four steam generator enclosures, RCP motor areas, discharge from the CRDM vent fans and discharge from the pressurizer compartment vent fans.

Question 6

What happens to containment ventilation on a Phase A (CIA)?

Answer 6

Question 7

What happens to containment ventilation on a Phase B (CIB)?

Answer 7

Question 8

What happens to containment ventilation on a Containment Ventiliation Isolation signial (CIV)?

Answer 8

Question 9

Answer 9