EDG room ventilation

Question 1

Fire in DG room or day tank room, what happens:

Answer 1

1. Both fans trip
2. Dampers close
3. CO2 is actuated (after time delay so people can exit)

Question 2

Purpose of system

Answer 2

1. Provide DG with combustion air
2. Provide class 1E HVAC to DG and auxiliaries
3. Removes fumes from oil rooms
4. Isolates rooms in case of fire

Question 3

High room temp limit for operating the diesel

Answer 3

Do not start or continue to run DG when room temp exceeds 132F.

Question 4

DG room supply fans are controlled from:

Answer 4

MCR only

Question 5

DG room exhaust fans are controlled:

Answer 5

Locally only

Question 6

Supply air temperature maintained at :

Answer 6

> =65F

Question 7

DG supply fan Auto Starts

Answer 7

MCR switch to start
EDG start
Temp in room >115F

Question 8

Outside air makeup temp control set at:

Answer 8

65F