TM 55-1930-209-14&P-2
a.
Perform steps a and b in paragraph 3-3.2.1.
b.
Open or close seawater valves as follows:
o = open
x = closed
- = not affected
SW valve no.:
Supplying seawater to:
1
2
5
6
9
10
11
12
16
17
19
20
21
22
23
24
25
ROWPU 1 from SW pump 2 x
x
x
o
-
o
x
x
o
o
o
x
x
x
-
x
o
ROWPU 2 from SW pump 1 x
x
o
x
o
-
x
-
o
x
o
x
o
-
x
o
x
NOTE
In addition to the following procedures, seawater pumps 1 and 2 can be started
and stopped at local control switches in void 2 starboard.
c.
Perform steps e thru i in paragraph 3-3.2.1.
3-3.3 Supplying seawater from seawater pumps to chlorination and air conditioning units
NOTE
The following procedures assume that seawater pump(s) are operating. If these
pumps are not operating and seawater is required for chlorination unit, follow
procedures in paragraph 3-3.4.
NOTE
See Figures 1-3 thru 1-1 for seawater valve locations.
a.
Perform before operation checks in paragraph 4-3.
b.
To obtain seawater from seawater pump(s) for chlorination and air conditioning units, open the following valves:
(1)
Valve SW24 in void 2 port for seawater pump 1,
(2)
Valve SW25 in void 2 port for seawater pump 2,
(3)
Valves SW24 and SW25 for both seawater pumps.
c.
Open valve SW48 in void 2 port.
d.
If seawater is required for chlorination unit only, close valve SW47 in void 2 port.
e.
If seawater is required for both chlorination and air conditioning units, open valves SW47 and SW28 in void 2 port.
Make sure valve SW27 in void 2 port is closed.
f.
If seawater is required for air conditioning unit only, open valves SW47 and SW28. Cooling seawater will be
supplied to air conditioner as well as to chlorination unit, but cooling water in chlorination unit will simply circulate
through cooling portion of unit and pass overboard through port discharge.
g.
While operating, perform during operation checks.
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