0527_A__Envirosep_Potable_Water_System.doc

USS LEWIS B. PULLER

(ESB 3)

MACHINERY, AUXILIARY SYSTEMS

June 19, 2018

ITEM NO.

MSC/N757/RLA

ENVIROSEP Potable Water System Repair (VRR18-034)

1.0 ABSTRACT:

1.1 This item describes the requirement to trouble shoot and repair Potable Water System.

2.0 REFERENCES:

2.1 Tech Manual S9533-CN-MMC-010, HYDROPHORE UNIT, PORTABLE (DBV-HT) WITH VFD PUMPS (CR 15-40)

3.0 ITEM LOCATION/DESCRIPTION/QUANTITY:

3.1 Location:

3.1.1 FWD and AFT Potable Water System Skids.

3.2 Item Description/Manufacturer’s Data:

3.2.1 HYDROPHORE UNIT, PORTABLE (DBV-HT) WITH VFD PUMPS (CR 15-40).

Manufacturer:

Envirosep

31 Aviation Blvd.

Georgetown, SC 29440

Phone: (843) 546-7400 ext. 213

Fax: (843) 546-7407 www.envirosep.com

3.3 Bill of Materials (Contractor Furnished).

3.3.1 Red Lion Model G306A HMI.

3.3.2 MicroLogic 1100 programmable Controller.

4.0 GOVERNMENT FURNISHED EQUIPMENT/MATERIAL/SERVICES: NONE

5.0 NOTES:

5.1 The variable frequency drive for one pump failed. Upon installation of the replacement, the PLC in the combined motor controller stopped communicating with the remaining operable VFD. VFD is now in manual control to provide potable water service to the aft house.

5.2 This ship contains High Voltage (HV) electrical systems. The Contractor and Subcontractors shall obey all posted and verbal instructions regarding safety and exclusion from High Voltage areas. At no time shall a Contractor or Subcontractor approach, work on, or enter a High Voltage area without proper authorization.

5.3 The USNS LEWIS B.PULLER electrical color coding does not follow consistent color scheme. The ship is known to have current carrying conductors colored green, blue, black, and white. The Contractor shall assume all electrical cables are hot until tested otherwise. The Contractor shall test all electrical cables to ensure they are dead prior to working on the item.

6.0 QUALITY ASSURANCE REQUIREMENTS:

6.1 All work shall be accomplished to the satisfaction of the MSC Port Engineer.

6.2 Ship’s Force shall insure proper system isolation Lock-Out Tag Out prior to work commencement.

7.0 STATEMENT OF WORK REQUIRED:

7.1 Arrangements/Outfitting:

7.1.1 Provide the services of a manufacturer’s authorized technical field service representative to oversee all requirements of this work item.

7.1.2 The OEM technical representative must be familiar with the Envirosep Hydrophore system installed onboard and have experience with operations, troubleshooting, programming and repair of the unit.

7.1.3 For estimating purposes assume six(6) man days onboard shall be required to repair malfunctioning hydrophore system and complete testing and repairs.

7.2 Testing:

7.2.1 Contractor shall conduct an Operational Test of the system in the presence of the Chief Engineer.

7.3 Documentation Requirements:

7.3.1 Contractor shall train ship’s crew in the operation of the new install and provide the ship with software and electrical schematic of the new install on CD along with a printed manual.

7.3.2 Provide a service report of repairs conducted, components replaced, and test results to the MSC Port Engineer and Chief Engineer.

7.3.3 Submit an as found condition report to MSC Port Engineer. Any additional repair requirements outside the scope will be subject to a change order.

8.0 GENERAL REQUIREMENTS: None.

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