Procedures & Alarms

Milestones:

• Learning and Training Phase – Pre-Requisites for the start of operation:

1. Open Required Valves of Pump.
2. Open Required Tank Valves.
3. Setup Up the BWTS For Ballasting.
4. Start The System In Recirculation.

• Assessment Phase – Operational flow and Assessment:

5. Select The Side For Ballasting.
6. Run Both The Sides Of The System (Port and STBD).
7. Attend To The BWTS Alarms And Troubleshoot.
8. Fill No.2 and No.4 Wing Tanks To The Desired Level.
9. Return The System To Recirculation.
10. Stop BWTS.
11. Close The Tank Valves.
12. Secure The System.

---

Actions During Exercise:

Deviation from Exercise:

After starting or resuming the ballasting, the user should not open any non-required valves or close any required valves. If this happens, a caution message will appear, instructing the user to undo the previous action. If the user fails to correct the action, the exercise will be terminated.

High trim & list difference:

After starting or resuming the ballasting operation, the user must maintain the list and trim angle below 1.5°. If the angle exceeds 1.5°, a low-priority message will be displayed, instructing the user to reduce the angle. If the angle is not corrected, the message will escalate to a high-priority alarm, and the exercise will be terminated within 5 minutes unless the angle is brought back below 1.5°.

---

Alarms & Remarks

Alarm Condition	Alarm Time	Alarm Level	Alarm Title	Alarm Description	Action
		caution	Open Required Tank Valves	Open required tank filling valves and run the system in recirculation before selecting the side mode.
		remark	Ballasting Of Tanks Started	Maintain initial flow at 1000 m³/h.
		remark	Increase The Flowrate	Increase and maintain flowrate at 2500 to 3000 m³/h.
		remark	Booster Pump Abnormal	The BPU 100A Booster Pump is abnormal. Reset the BPU 100A pump and select the BPU 100B pump after acknowledging the alarm in BWTS panel.	Reset the current BPU And Start the other After Acknowledging the alarm in BWTS Panel.
		remark	Booster Pump Abnormal	The BPU 100B Booster Pump is abnormal. Reset the BPU 100B pump and select the BPU 100A pump after acknowledging the alarm in BWTS panel.	Reset the current BPU And Start the other After Acknowledging the alarm in BWTS Panel.
		remark	Low Water In TRO-100	There is no water in TRO 100 sensor, override the highlighted valve and reduce the valve opening to at least 40%.	Acknowledge the alarm in BWTS Panel and reduce the highlighted valve
		remark	Low Water In TRO-101	There is no water in TRO 101 sensor, override the highlighted valve and reduce the valve opening to at least 40%.	Acknowledge the alarm in BWTS Panel and reduce the highlighted valve
		remark	Low Injection Pressure Water In TRO-100	Increase the valve opening of the highlighted valve to increase the pressure.	Acknowledge the alarm in BWTS Panel and Adjust the highlighted valve
		remark	Low Injection Pressure Water In TRO-101	Increase the valve opening of the highlighted valve to increase the pressure.	Acknowledge the alarm in BWTS Panel and Adjust the highlighted valve
		remark	Filter SF-100 Abnormal	Filter Unit SF-100 Abnormal. Run port side in recirculation mode and reset the filter pump.	Acknowledge the alarm in BWTS Panel and return the side to recirculation
		remark	Filter SF-101 Abnormal	Filter Unit SF-101 Abnormal. Run starboard side in recirculation mode and reset the filter pump.	Acknowledge the alarm in BWTS Panel and return the side to recirculation
		caution	Deviation Detected	Deviation from the exercise is detected, undo your last action.
		Low priority	High Trim Difference between port and stbd	High trim differences adjust tank filling valves accordingly.

 

---

Step By Step Procedure

• Learning and Training Phase – Pre-Requisites for the start of operation:

1. Open Required Valves of Pump

• • Open the discharge, suction, and filling valves of ballast pumps 1 and 3.
  • Navigate to the PMS page using the side navigation bar, or click the generator running box at the top of the ballast system page to start the second generator.
  • Note: The tank filling valves (i.e., BWTS valves) will open automatically when the BWTS auto operation is initiated.

2. Open Required Tank Valves

During the ballasting operation, we will be filling tanks 2(P), 2(S), 4(P), and 4(S).
Open the following tank filling valves:

• • BA511F
  • BA507F
  • BA510F
  • BA506F

3. Set Up BWTS for Ballasting

• • Navigate to the BWTS page by clicking the BWTS rectangular box on the ballast system page or via the side navigation bar.
  • Turn on the BWTS.

 

• • Click the ship icon and select Ballasting Operation.

 

4. Start the System in Recirculation

• • Select the Recirculation side in the BWTS Panel.

• • Select any one of the BPU units and a Fan in the BWTS Panel.

• • Click Auto Start to initiate the BWTS system.
    
    
  • Once the BWTS valves are open, the ballast pump can be started in recirculation mode.

 

• Assessment Phase – Operational flow and Assessment:

5. Select the Side for Ballasting

After successfully running the system in recirculation:

• • • Select the desired side option (Port or Starboard) in the BWTS panel.
      
    • Deselect Recirculation Mode to switch to Side Mode.
      

During the first 3 minutes, maintain a low flow of 1000 m³/h.

After 3 minutes, you will receive an alert to increase the pump flow rate.

 

6. Run Both Sides of the System (Port and Starboard)

• • Activate both the Port and Starboard sides of the system to ensure balanced operation. This milestone is complete when both sides are running.

 

7. Attend to BWTS Alarms and Troubleshoot

• • During the ballasting operation, various BWTS-related alarms may be triggered. It is essential to take appropriate corrective actions in response to these alarms.

• • Booster Pump Abnormal
    • Acknowledge the alarm on the BWTS panel, then select the other BPU.

• • Low Water In TRO
    • Acknowledge the alarm on the BWTS panel, then override the highlighted valve and reduce its opening to at least 40%.

• • Low Injection Pressure Water In TRO
    • Acknowledge the alarm on the BWTS panel, then increase the opening of the highlighted valve to raise the pressure.

• • Filter Unit SF Abnormal
    • Acknowledge the alarm on the BWTS panel, run the desired side in recirculation mode, and reset the filter pump.

8. Fill No.2 and No.4 Wing Tanks to the Desired Level

• • Fill tanks No. 2 and No. 4 to above 60% of their volume.
  • Once completed, return the system to Recirculation Mode.

 

9. Return the System to Recirculation
   To switch to Recirculation Mode, select the Recirculation side in the BWTS panel and deselect the side selection.
   
   

• • Stop the ballast pumps after the system has been switched to Recirculation Mode

10. Stop BWTS

• • Once pumps are stopped, Turn off the ballast operation toggle switch in the BWTS Panel.

11. Close the Tank Valves

• • After stopping the ballast pumps, close the tank filling valves that were opened during the process.
    • BA511F
    • BA507F
    • BA510F
    • BA506F

12. Secure the System

• • Close all valves that were opened during the BWTS auto operation by clicking Auto Stop. Then, manually close any other valves that were opened to complete the process.