11.18__WI_308.4_Install_Engine_Room_Supply_Ventilation_Sys_3-112-1.pdf

USS FRANK CABLE

(AS-40)

HVAC 08 February 2016 ITEM NO.308.4 Category “A” TMMG/SEDLACEK/TNG

INSTALL ENGINE ROOM SUPPLY VENTILATION

308.4-1

1.0 ABSTRACT

This item describes the requirements for installation of new engine room supply ventilation in support of the USS FRANK CABLE (AS-40) Switchboard Upgrade. Installation includes new supply ventilation ductwork from the Weather Deck to the Engine Room, a new supply fan, and a fire/smoke damper. Additional work includes the installation of electrical controls for the fan and vent damper HALON interface, and rebalancing the existing Engine Room exhaust systems. The new installation provides additional air flow in the vicinity of the switchboards.

2.0 REFERENCES

2.1 MSC Drawing 803-7081122, General Technical Requirements

(GTRs)

2.2 MSC Drawing 180-8496433, Foundations for HVAC Supply

System 3-112-1 Installation

2.3 MSC Drawing 512-8496027, Engine Room HVAC Supply System

Installation

2.4 MSC Drawing 506-8496427, Air Escape Modifications

Incidental to Installing HVAC Supply System 3-112-1

2.5 MSC Drawing 501-8389021, HVAC Diagram 01 Level and Main

Deck

2.6 MSC Drawing 501-8389025, HVAC Diagram 2nd and 3rd Deck

2.7 MSC Drawing 501-8389026, HVAC Diagram 4th Deck and 1st

Platform

2.8 IEEE Standard 45, Recommended Practice for Electric

Installations on Shipboard

2.9 MSC Drawing 302-8496025, Engine Room HVAC Supply System

Control & Wiring Diagram

2.10 MSC Drawing 303-8496197, HALON Intlk Mods Incidental to

Engine Room Vent Mods

308.4-2

2.11 MSC Drawing 331-8496198, Fire Damper Mods Incidental to

Engine Room Mods

2.12 MSC Drawing 512-8496065, HVAC Duct New Supply System

Installation Operation Test Procedure

3.0 ITEM LOCATION/DESCRIPTION

3.1 Location/Quantity:

3.1.1 Location

a. Engine Room, 5-110-0-E

b. S.D. Strm Bulk, Cable Reel & Rope 3-110-0-A

c. Mooring Station No. 6, 3-110-4-Q

d. Machine Shop, 2-98-0-Q

e. Pipe Shop, 1-108-1-Q

3.1.2 Quantity: None

3.2 Item Description/Manufacturer’s Data

3.2.1 Bill of Material

a. Included in References 2.2 through 2.7 and

2.9 through 2.11.

b. Quantities are considered estimates. The Contractor shall provide the exact quantities and additional material such as miscellaneous pipe fittings, elbows, caps, valves, pipe hangers, weld material, cable hangers, cable tags, buswork, etc., which are not included in the Lists of Materials, in order to install a fully functional system which meets the requirements of this specification.

4.0 GOVERNMENT FURNISHED EQUIPMENT/MATERIAL/SERVICES

4.1 Government Furnished Equipment (GFE): None

308.4-3

4.2 Government Furnished Material (GFM): None

4.3 Government Furnished Services (GFS): None

4.4 Government Furnished Information (GFI): None

5.0 NOTES

5.1 The Contractor and all subcontractors, regardless of

tier, must consult the General Technical Requirements (GTR) to determine applicability to this work item. In performance of this work item, the Contractor and all subcontractors, regardless of tier, must comply with the requirements of all applicable GTRs, including but not limited to GTRs 1 through 7, 21, 22, 25, 26, 27 and 29.

5.2 The Contractor and all subcontractors, regardless of

tier, are advised to review other work items under this contract, including but not limited to Work Items 308.1, 308.3, and 308.5 through 308.7, to determine their effect on the work required under this work item.

Many of the definitions relating to performance of this work item are found in Work Item 001.

6.0 QUALITY ASSURANCE REQUIREMENTS

6.1 All work shall be performed to the satisfaction of the

onsite MSC representative (MSCREP), ABS Representative, Port Engineer, and ship’s Chief Engineer.

6.2 All work and testing shall be in accordance with the

latest SOLAS regulations, ABS Rules for Building and Classing Steel Vessels, IEEE-STD-45, USCG Requirements, and to the satisfaction of and in the presence of the ABS Surveyor (if required), Manufacturer’s Representatives (as necessary), and MSC Representative (MSCREP).

6.3 All welding requirements shall be accomplished by

certified welders and meet ABS and USCG requirements.

All welders shall be certified to perform the type of

308.4-4 welding required and documentation of such shall be current. Fire watches shall be posted by the Contractor during hot work.

6.4 Clean and gas free affected enclosed spaces per local

procedure as approved by the ship and/or MSCREP.

7.0 STATEMENT OF WORK REQUIRED

7.1 Arrangements/Outfitting:

7.1.1 The Contractor shall design and make all

necessary arrangements (temporary accesses, install padeyes and lifting gear, rigging path, etc.) to safely install the HVAC modifications and auxiliary fixtures, using References 2.1 to

2.3 as guidance.

7.1.2 Remove all interference items necessary to

accomplish the requirements of this Work Item.

Mark, protect and properly store all interference items removed. Reinstall interference items and prove them operational when the requirements of this Work Item are complete.

7.1.3 Removals

a. Remove decking, as required to accommodate installation of new ventilation ductwork.

b. Remove 1 each file cabinet using Reference 2.2, Key Plan 12-C and General Note 17 as guidance. Mark, protect and properly store the file cabinet for reuse.

c. Remove 1 each Vidmar cabinet using Reference 2.2, Key Plan 15-A and General Note 17 as guidance. Mark, protect and properly store the Vidmar cabinet for reuse.

308.4-5

7.1.4 Installations

a. Install the file cabinet removed and retained in Section 7.1.2.a, using Reference 2.2, Key Plan 12-C and General Note 18 as guidance.

b. Install the Vidmar cabinet removed and retained in Section 7.1.2.b, using Reference 2.2, Key Plan 15-A and General Note 18 as guidance.

7.2 Structural:

7.2.1 Removals

a. Remove 2 each, cabinet foundations, using Reference 2.2, Key Plans 12-C and 15-A and General Note 17 as guidance.

b. Remove 3 each, lighting foundations using Reference 2.3, Partial Plan 35-A and General Note 18 as guidance. Retain removed foundations for reuse.

c. Chip and grind all surfaces flush and smooth in way of removals.

7.2.2 Installations

a. Provide all material and fabricate and install 2 each, cabinet foundations using Reference 2.2, Key Plans 12-C and 15-A and General Note 18 as guidance.

b. Provide any new material required, and install 3 each, lighting foundations removed and retained in paragraph 7.2.1.b, using Reference 2.3, Partial Plan 35-A and General Notes 18 and 20 as guidance.

c. Provide all material and fabricate and install 2 each, deck penetrations and 1 each, bulkhead penetration, using Reference

308.4-6

2.3, Detail 23-C, Section 46-B and General Note 20 as guidance.

7.3 Mechanical/Fluids

7.3.1 Removals

a. Remove vent piping, including 2 each, check valves, using Reference 2.4, Elevation 15-A and Partial Plan 15-D as guidance.

7.3.2 Installations

a. Provide all material and fabricate and install new vent piping, including new check valves, using Reference 2.4, Elevation 12-A and Partial Plan 12-D as guidance.

b. Provide all material and install a 90° elbow and relocate halon piping/flex hose, using Reference 2.3, Partial Plan 35-A as guidance.

c. Provide material and fabricate and install supply ventilation ductwork, and associated paint, insulation and deck covering, using References 2.3 and 2.5 through 2.7 as guidance. Accomplish removals, where appropriate, using Reference 2.3, Removal Notes R-1 through R-5, as guidance.

7.4 Electrical

7.4.1 Accomplish all work required under this work

item using Reference 2.8 as guidance.

7.4.2 Installations

a. Provide material as required and install using Reference 2.9 and 2.10 as guidance.

308.4-7

b. Provide all material and install the ventilation supply control system using Reference 2.9 as guidance.

c. Provide all material and accomplish halon interlock modifications using Reference 2.10 as guidance.

d. Provide all material and accomplish fire damper system modifications using Reference

2.11 as guidance.

e. Install all cabling in existing cableways, hangers, and penetrations, where practical.

Furnish new kick pipes, stuffing tubes, and/or transit devices as required, using General Notes 7 through 9 of References 2.9, 2.10, and 2.11 as guidance.

7.5 Electronics: None additional

7.6 Cleanliness

7.6.1 Clean all new and modified ventilation prior to

final acceptance. Remove all dirt, dust, foreign objects and fabrication debris upon completion of removals, installations, modifications and repairs.

7.7 Preparation of Drawings/Documentation:

7.7.1 Guidance Drawings - None

7.7.2 Working Drawings - None

7.7.3 Redline Drawings

a. Contractor shall provide redline markup of all affected ship’s Selected Records Drawings (SRDs) including, but not limited to: HVAC Diagram, HVAC Calculations, Chilled Water Diagram, and Electrical One Line.

308.4-8

b. Redline markups shall be provided in AutoCAD 2004 and PDF (electronic format).

c. Redline markups shall be provided to MSCREP and MSC Tech Library:

9276 3rd Ave., Bldg. LP-26

Norfolk, VA 23511

7.7.4 As-built Drawings

a. Contractor shall provide as-built drawings based off References 2.1 to 2.11 and the installed conditions.

b. As-built drawings shall be provided in AutoCAD 2004 and PDF (electronic format).

c. As-built drawings shall be provided to MSCREP and MSC Tech Library:

9276 3rd Ave., Bldg. LP-26

Norfolk, VA 23511

7.8 Inspection/Test

7.8.1 Inspections

a. Notify the MSCREP and the Chief Engineer to inspect ventilation for cleanliness prior to final closeout and before energizing system.

b. Inspect all welds in accordance with the shipyard’s Quality Assurance Plan. NDT shall be in accordance with ABS Steel Vessel Rules. Deliver a copy of a report containing the results of all weld inspections associated with this work item to the MSCREP and the ship’s Chief Engineer for approval. MSC reserves the right to reject any welds based on a visual

308.4-9 inspection, review of the inspection report, or result of the NDT.

7.8.2 Tests

a. A tightness test in accordance with ABS Steel Vessel Rules and Reference 2.1 shall be performed wherever watertight or fire boundaries have been penetrated or modified.

b. Test newly installed cables as follows:

Demonstrate continuity and insulation resistance readings to the satisfaction of the ABS Surveyor and Chief Engineer, using Test Note T-1 of References 2.10 and 2.11 as guidance, where appropriate.

c. Test and balance new and modified HVAC systems in accordance with GTR No. 3, and Reference 2.12.

d. Verify that the new Supply System operates correctly using Reference 2.9, Sheet 4, Description of Operation, Reference 2.3 Test Notes T-1 through T-5, Reference 2.12, and Reference 2.1 GTR No. 3 as guidance.

Demonstrate vent damper actuation/closure and supply vent shutdown by simulating HALON release. Document system testing in Reference 2.12.

7.9 Painting

7.9.1 Paint all new and modified surfaces to match

surrounding surfaces. Touch up all surfaces where paint was damaged in the conduct of work required under this work item to match surrounding surfaces using Reference 2.1 as guidance.

7.10 Marking

308.4-10

7.10.1 Fabricate and install new name plates, notices, cable tags, labels, and markings, including directional flow markings, for all new or modified areas using Reference 2.1, GTR No. 29 and as noted on referenced drawings.

7.11 Manufacturer’s Representative: None

8.0 GENERAL REQUIREMENTS:

8.1 All areas involved in work or traversed by workmen or

equipment shall be left clean and in good order.

8.2 All waste matter resulting from this work item shall

be collected in suitable containers provided by the Contractor and shall be disposed of by the Contractor in strict compliance with current U.S. Government, state and local antipollution and public health regulations.

8.3 All required tests and inspections shall be performed

to the satisfaction of the USCG, ABS, and MSCREP as applicable.

8.4 No items shall be left for ship’s force disposal.