B.01_Attachment_A_ProductDescription.pdf

Replace Port Side A/C Compressor For USACE Hopper Dredge ESSAYONS

1 JOB

01. General

Replace the failed port side a/c compressor and restore the system to full functionality.

02. References NA

Drawings: N/A

Equipment

Information: Current compressor is a BITZER reciprocating unit, 70 ton.

Manuals:

Photos: NA

Reports: NA

Suggested

Vendors: NA

Technical

Standards: All applicable USCG and ABS regulations. ASRAE standards for installation of refrigeration machinery,

03. Government Furnished Property (GFP) NA

04. Safety Precautions: Comply with all applicable EM 385-1-1, federal, state and local regulations LOTO required.

05. Submittals: NA

06. Specifications: The a/c compressor to be replaced is located in the vessels auxiliary machinery room, port side. The crew will perform electrical disconnects and reconnects. The contractor shall furnish all labor material and equipment to replace the existing portside A/C compressor with the exception of the aforementioned electrical work. Contractor shall pump down and recover all refrigerant and other fluids complying with all safety and environmental regulations. Contractor shall make all piping and mounting disconnects and safely rig the existing compressor to the deck plates. Contractor shall take care to properly seal all open piping connections until reconnected to the new compressor. Contractor shall perform a complete refrigerant system flush before connecting the new compressor. A new suction filter shall also be provided and installed prior to startup of the new system.

A Bitzer Screw Model CSH7563-80Y-4PU has been selected for compatibility with the existing equipment and ease of mounting. The contractor shall furnish one (1) each of the specified compressor, with electronic oil level control, liquid injection, capacity controller LOGO8, the factory rail mount kit and all necessary oil and new refrigerant to make the new system fully operational. All installation work and materials shall comply with the manufacturer’s written recommendations and requirements. All piping, fittings, valves, insulation, supports, incidentals and freight costs are included in the work.

The contractor shall rig into place and properly mount the new compressor, make all necessary piping connections and charge the system. The contractor shall leak test the system to the satisfaction of the vessels chief engineer and the COR. The contractor shall insulate all system components to industry standards. The contractor shall advise the COR when electrical reconnections are necessary. The contractor shall start the new compressor and bring the system on line. The contractor’s technical personnel shall attend the machinery for a minimum of four (4) hours uninterrupted once system temperatures and pressures have stabilized. The contractor shall advise the COR at least one (1) hour before the four (4) hour period is scheduled to begin.

Provide documentation of system performance for this period.

The contractor shall provide two (2) Operation and Maintenance manuals.

The contractor shall provide a list of recommended spares.

The contractor shall properly dispose of or recycle all waste and debris generated by this work.

All contractor personnel shall have current TWIC cards to assure access.

Essayons will likely be berthed at Terminal 2 for the period of the compressor change out. The address is 3556

NW Front Ave. Portland Oregon, 97209. Operational requirements may place the ship elsewhere in the

Columbia River. If that is the case, transportation for service personnel will be provided to and from the ship from a location close to where the ship is working.

A ship check prior to submission of offers will be required. USACE will advise of the date and location.

07. Inspection: COR and vessels Chief Engineer.

08. Testing: Operational test to the satisfaction of the COR and Vessels Chief Engineer.

09. Training: Provide minimum of 2 hours to vessels crew on operation and maintenance.