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 (3) Blower
emergency
stop
switches.
m. Ventilation System Controls. The control
Emergency stop switches are located in engineroom and
switches for the ventilation system blowers are located
pilothouse.
Operation of either switch stops all
in the access area to the engine room.
ventilation blowers.
(1) Ventilation blower line switches. These
switches are located on the ventilation power panel
n. Raw and Fresh Water Engine Cooling System
which is on the inboard bulkhead of the engineroom
Controls.
passage. Place the line switch at ON before starting
blower. Each switch is clearly marked on the side as to
(1) Thermometers. Temperature indicating
which blower it controls.
thermometers are installed at the intake and outlet
(2) Blower start-stop switches. These switches
points of the fresh water heat exchangers, lubricating oil
are adjacent to the line switches. Pressing the ON
coolers, and engine manifold,
button starts blower. Pressing the OFF button stops the
(2) Valves. The location and identification of
blower.
each control valve in the system is shown in table 2-3
below:
Table 2-3. Raw and Fresh Water Engine Cooling System Control Valves.
Valve
Service
Location
Label
No.
inscription
1
Fill expansion tank with potable water.
Near centerline, above main deck, frame 27.
2
Attached fresh water pump suction.
At centerline, at engineroom floor, frame 25.
ATT. F. W. PUMP SUCT.
3
Heat exchanger bypass.
Stbd. side, below main deck, frame 37.
F. W. BYPASS
4
Heat exchanger inlet.
Stbd. side, below main deck, frame 36.
F. W. TO HT. EXCH 'R
5
Heat exchanger outlet to fresh water pump.
Stbd. side, below main deck, frame 32.
F. W. FROM HT. EXCH'R
6
Fresh water pumps drain
Stbd. side, below engineroom floor, frame 26.
DRAIN
7
Fresh water standby pump suction.
Stbd. side, above engineroom floor, frame 33.
F. W. STDBY PUMP SUCTION
8
Low sea chest raw water suction.
Portside, below engineroom floor, frame 32.
LOW S. W. TO HT. EXCH'R
9
Attached raw water pump suction.
At centerline, at engineroom floor, frame 25.
ATT. S. W. PUMP SUCT.
10
Cutout to gage board.
Stbd. side, at bulkhead, above e gj eroom floor,
GAUGEBD.
frame 29.
11
Raw water overboard discharge.
Stbd. side, near bulkhead below main deck, frame 38.
S. W. FROM HT. EXCH'R
12
Raw water standby pump suction.
Portside, above engineroom floor, frame 34.
S. W. STDBY. PUMP SUCT.
13
Raw water standby pump drain.
Stbd. side, near centerline, below engineroom floor,
DRAIN
frame 35.
14
Raw water suction to sanitary pressure set.
Portside, near bulkhead, at engineroom floor,
S. W. SUCT.
pressure set.
frame 32.
15
High sea chest raw water suction.
Portside, at bulkhead, at engineroom floor, frame 32.
S. W. TO HT. EXCH'R
16
Compressed air blowout, low sea chest.
Portside, near bulkhead, below engineroom floor,
S. C. BLOW
frame 32.
17
Compressed air blowout, high sea chest,
Portside, near bulkhead, at engineroom floor,
S. C. BLOW
frame 32.
18
Raw water to thrust bearing.
Stbd. side, below engineroom floor, frame 39.
S. W. TO THRUST BEARING
19
Raw water to stern tube bearing.
Stbd. side, below engineroom floor, frame 39.
S. W. TO SHAFT BR'G
20
Sea chest to port generator.
Portside, above engineroom floor, frame 22.
P. GEN. S. W. SUCT.
21
Port generator overboard discharge.
Portside, above engineroom floor, frame 26.
P. GEN. S. W. DISCH.
22
Compressed air blowout, port generator sea chest.
Portside, above engineroom floor, frame 26.
S. C. BLOW
23
Sea chest to stbd. generator.
Stbd. side, above engineroom floor, frame 26.
S. GEN. S. W. SUCT.
24
Stbd. generator overboard.
Stbd. side, above engineroom floor, frame 22.
S. GEN. S. W. DISCH.
25
Compressed air blowout, stbd. generator sea chest.
Stbd. side, above engineroom floor, frame 22.
S. C. BLOW
2-16
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