TM 55-1930-209-14&P-1
e.
Open seawater valve SW4 in void 2 near starboard shell.
NOTE
In addition to the following procedures, seawater pumps can also be started and
stopped at local control switches in void 2 starboard.
f.
Make sure switchboard circuit breakers P6 and P7 are dosed (ON).
g.
To supply seawater to both ROWPU's, start seawater pumps 1 and 2 by turning seawater pump OFF/ON/START
switch to ON at ROWPU 1 and ROWPU 2 control stations. To supply seawater to only one ROWPU, turn
appropriate switch to ON.
h.
Start ROWPU system according to procedures in Chapter 13.
i.
While system is operating, perform during operation checks in steps i thru m in paragraph 11-12.1.1.
11-12.2.2 Alternate procedures
NOTE
Alternate procedures may be followed when normal procedures cannot be used
due to maintenance or component breakdown. See Figures 11-1, 11-3, and 11-5 for
seawater valve locations.
a.
Perform steps a and b in paragraph 11-12.2.1.
b.
Open or dose seawater valves as follows:
o = open
x = dosed
-= not affected
Seawater (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
x
x
x
o
-
o
-
x
x
o
o
o
x
x
-
x
o
pump 2
ROWPU 2 from SW
x
x
o
x
o
-
x
-
o
x
o
x
o
-
x
o
x
pump 1
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 11-12.2.1.
11-12.3 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 11-12.4.
NOTE
See Figures 11-1, 11-3, and 11-5 for seawater valve locations.
a.
Perform prestart procedures in paragraph 11-11.
11-24
