Misc Ventilation

Question 1

Where do the FN3s draw air from and send it?

Answer 1

They draw air from the common corridor, into CR, and into diesel room. (FN5 supplies corridor)

Question 2

When do FN1s/2s start in Misc vent?

Answer 2

These fans are normally in STBY. They start when the diesel starts. They must be manually secured. 2 dampers modulate to maintain 80F in the room.

Question 3

When do FN3s trip.

Answer 3

When FN1/2s start on a diesel start.

Question 4

What outdoor temp declares DIV I&II INOP?

Answer 4

100F

Question 5

What outdoor temp declares DIV III INOP?

Answer 5

103F

Question 6

What must be done when it is 65F in the EDG rooms?

Answer 6

1. Hourly Checks - Bases - the EDG could be reluctant to start at lower temps.
2. Governor must be >70F. Start diesel before going below 70F on the governor.

Question 7

When will a FN1/2 restart automatically?

Answer 7

Red flagged following a loss of power to the bus.

Question 8

What do FN4 A/B provide ventilation for?

Answer 8

DIV I, II, & III battery rooms

Question 9

When do FN4s autostart?

Answer 9

Trip of running pump

Question 10

Are smoke fans manual or auto start?

Answer 10

Manually started

Question 11

When do DIV I, II & III battery room exhaust fans trip?

Answer 11

CO2 discharge.

Question 12

When are safety related Unit Coolers considered to be INOP?

Answer 12

When they do not have cooling water.