LP Air Systems

Question 1

Where are the LPACs located?

Answer 1

Main 1
Main 2
3 LPAC -200 CFM @ 125 psi

Question 2

What are the 3 modes of operation?

Answer 2

125 [LEAD]
120 [LAG]
115 [STBY)

Question 3

What does the LPAC provide?

Answer 3

Provides low-pressure air throughout the ship for maintenance, service, control, pneumatic power. and other utility purposes.

Question 4

What three divisions is the LPAC divided into?

Answer 4

VItal air
Non-vital air
Electronic dry air

Question 5

What is an LP air dehydrator?

Answer 5

Used to remove moisture from the air the LPAC produces

Question 6

How many dehydrators are onboard Momsen?

Answer 6

[2]
Main 1 has one dehydrator (short box) and one electronic air dehydrator (tall box)

Main 2 has one dehydrator (short box) and one electronic air dehydrator (tall box)

Question 7

What is an electric air dehydrator?

Answer 7

Used to remove moisture from the air the LPAC produces and cools the air via chill water before it leaves to head to COMBAT to cool their equipment

Question 8

What is an LP air receiver?

Answer 8

One in each main space. Holds the air that is produced from the LPAC until needed for shipboard use

Question 9

What is a PRIORITY VALVE?

Answer 9

One in each main space. It cuts air pressure off to non vital systems when the LP air header pressure is less than 85 psi