Chlorination unit continues to produce and store chlorine solution for later
use. if chlorination unit is to be shut down completely, perform steps c and
Close valves CU2, CU6, and CU10.
Turn function switch on control cabinet (Figure 3-5) to OFF.
3-9 Emergency shutdown
3-9.1 General. The barge has two emergency shutdown modes. One mode shuts down individual systems such as the
ventilation system or a diesel high pressure pump, and the other shuts down all barge operating systems.
Both are shut down by pushing a red button protected by a metal guard. During system shutdowns, either fuel or
electrical power is shut off to that system only. On total shutdown, all fuel and electrical power is shut off to all operating
Six red shutdown buttons are located on the ROWPU space starboardbulkhead just aft of the personnel door.
These system shutdown buttons (Figure 3-10) control shore power, ventilation systems, ROWPU1 diesel high pressure
pump, ROWPU2 diesel high pressure pump, ship auxiliary generator, ship service generator 2, and ship service
The six red shutdown buttons are located as follows:
On ROWPU space starboard bulkhead aft of personnel door, above and forward of row of system shutdown
Outside ROWPU space starboard door on weatherdeck.
Outside ROWPU space port door on weatherdeck.
Inside ROWPU space port door to weatherdeck.
Outside dayroom door to weatherdeck.
Inside dayroom door to weatherdeck.
3-9.2 Emergency shutdown procedures
In an emergency, push the appropriate red button to shut down either a selected system or all operating
When emergency situation is corrected, reset emergency button by turning collar behind button one-quarter
turn clockwise. Button pops out and again is in the ready position.
When emergency button is reset, restart chlorination system according to Chapter 3, Section III.
Section IV. Operation under extreme conditions
3-10 Operation under extreme conditions. Operation of chlorination system in extreme cold creates a special
problem with lubricants. Other problems occur during operation in extreme heat. These conditions are discussed below.
Additional information can be found in manufacturers' service manuals/instructions listed in Chapter 6.
3-10.1 Operation In extreme cold. Cold weather lubricants must be used. When not operating, flush chlorination
unit with clean, fresh water and drain to prevent damage due to freezing or severe abrasion to the circulating pump
impeller due to salt precipitation.
Operation in extreme heat
Lubricants. Hot weather lubricants must be used.
Motors. Electric motors may have a tendency to run hot, causing internal protective devices to stop motors.
When this happens, allow motor to cool and it will automatically restart when it reaches a safe operating temperature.