Containment Building HVAC HJ Flashcards
What is the function of the OSA normal AHU?
Provides required makeup outside air to the control room and control building normal AHUs.
What rooms does the control building normal AHU supply ventilation to?
Air handling equipment rooms A & B (74') A & B switchgear rooms (100') ABCD battery rooms Remote shutdown rooms Lower cable spreading room (120') Inverter and comm equip room Corridor Corridor (140') Offices or spaces Upper cable spreading room (160') Microwave room Lobby
What provides air to the comm room and inverter room?
Control bldg norm AHU
What is the function of the ESF switchgear room norm AHUs?
Assists in cooling the DC equipment and ESF switchgear rooms
What signals cause the control room essential AHUs to start?
SIAS CIAS CRVIAS CSAS CREFAS LOP
What causes the ESF switchgear essential AHUs to start?
SIAS OR LOP
What causes the ESF equipment room essential AHUs to start?
SIAS or LOP
Where does the battery room ventilation normal exhaust fans discharge?
Directly to the outside atmosphere.
What ESFAS signal causes the battery room essential ventilation fans to start?
SIAS or LOP
What ESFAS signals will cause the toilet and kitchen exhaust fans dampers to isolate?
LOP SIAS CREFAS CRVIAS Dampers close but fans stay running
How many floors can the normal smoke removal fan be aligned to at a given time and how are they aligned?
One floor at a time and must be aligned manually
What safety functions are associated with the battery room normal exhaust fans?
Will not draw from a room where the CO2 fire suppression system was recently used to be sure it serves it’s function.
Or when the essential exhaust fan starts
What system provides chilled water for the normal control room and control building cooling coils?
WC normal chilled water.
What system provides chilled water for the essential train A & B cooling coils?
EC essential chilled water.
What system provides air washer make up water?
DS
What ESFAS signal is actuated upon rad monitoring alert of contamination?
CREFAS UPON HI HI RAD LEVELS
What ESFAS signals will render the smoke removal system disabled.
SIAS or LOP
What interlock will prevent the control room normal AHUs from starting?
The outlet dampers must be open.
What doe the respective A and B train ESF switchgear essential AHUs cool?
A Battery room A and C ESF switchgear room A B Batt room B and D ESF switchgear room B Each unit has a hi efficiency filter bank, cooling coil and fan
What signals cause the ESF switchgear room essential AHUs to start?
SIAS
LOP
What do the respective A and B train ESF equipment rooms cool?
A Equip rooms A and C Batt rooms A and C ESF switchgear room A B ESF equipment room B and D Batt rooms B and D ESF switchgear room B
Why is it important to ventilate the battery rooms?
To prevent the build up of hydrogen.
What ESFAS signals prevent the smoke removal from the 140’ of the control building until the signal has been reset?
LOP
SIAS
CRVIAS
CREFAS
What signals will prevent smoke removal from the 100’ of the control building until the signal has been reset?
LOP
SIAS
