HA-Auxiliary Building HVAC

Question 1

What is the purpose of the Auxiliary Building HVAC systems normal and essential?

Answer 1

Normal-maintains the Ac for personne comfort and safe operation
Essential-serves the ESF equipment rooms and safety related Aux FW pump rooms.

Question 2

What are the functions of the Auxiliary Building HVAC system?

Answer 2

1-habitable environment in access control areas
2-maintains aux and msss bldg (AFWP rooms) to support equipment
3-prevents release of airborne radioactivity from the aux building to surrounding areas
4-Supports equipmentin a DBE
5-habitable environment for normal, shutdown, and startup op
6-maintains negative press in ESF equip rooms during DBE
7-Provides vent path for the aux build through plant vent stack
8-habitable environment in ESF equip rooms, Aux bldg, and MSSS during SBO

Question 3

What is the flow path of the Auxiliary Building HVAC system?

Answer 3

OSA if filtered/cooled/heated by AHU >sent to different rooms in Aux bldg > the treated air also supplies the Normal Access ACU