514-20-001 - AC INSTALL - rev.1.pdf

SHIP: YRBM(L) 57 (YRBM 57) ITEM NO: 514-20-001

COAR: 28 PCN: YRBM-L024

CSWT FILE NO: 514-004 (LCC 19) CMP: NONE

REVISED: 19 FEB 2025 PLANNER: LOFTIS, OLEN

SSP: YOKO-703-26 1 of 3 ITEM NO: 514-20-001

EXPORT CONTROLLED DATA: This document contains technical information whose export is governed by U.S.

International Traffic in Arms Regulation (ITAR). This information must not be transferred to a foreign person/entity without proper authorization of the U.S. Government. Violations may result in administrative, civil, or criminal penalties.

1. SCOPE:

1.1 Title: SPLIT AIR CONDITIONING SYSTEMS UPGRADE; accomplish

1.2 Location of Work:

1.2.1 Mechanical Room; 2-30-1-Q

1.2.2 Stair Tower #2; 2-43-1-Q

1.2.3 Electrical Rm; 2-59-1-Q

1.2.4 CHT Equip Rm; 2-49-1-Q

1.2.5 Stair Tower #3; 2-68-0-Q

1.2.6 Rec Storeroom; 03-67-1-A

1.2.7 03 Level, Exterior, Frame 66 to Frame 72, Starboard Side

1.3 Identification:

1.3.1 Not Applicable

2. REFERENCES:

2.1 NAVSEA Standard Items, (FY26 CH-1)

2.2 185-8894839, Split System Upgrade Foundation Modification

2.3 321-8975052, Power System Modifications HVAC Machinery Rooms

2.4 514-8975539, HVAC Modifications Electrical Room 2-59-1-Q

2.5 514-8975540, HVAC Modifications Mechanical Room Upgrade 2-30-1-Q

2.6 516-8975541, Refrigerant Piping Instl Incid To Elec & Mech Rms HVAC Mods 2nd Dk – 03 Lvl

2.7 501-5294255, HVAC Sys Airflow Bal & Cont

2.8 501-5287967 J, Ventilation Standard Details and General Notes

2.9 Mil-Std-1310, Shipboard Bonding, Grounding and Other Techniques for Electromagnetic Compatibility and Safety

2.10 PY R-LAR, Refrigerant Oil Tester; replacement

3. REQUIREMENTS:

(V) "RECEIPT INSPECTION"

3.1 This work item describes the requirement to modify and install Split AC Systems located throughout the barge.

3.1.1 The Contractor shall provide all necessary tools, labor, and material for the accomplishment of split AC systems installation onboard Berthing Barge YRBM-57.

3.1.2 No removal or disconnecting of existing equipment or

components affected in this Work Item shall be accomplished until new material is on hand to complete this work before the completion date

SHIP: YRBM(L) 57 (YRBM 57)

SSP: YOKO-703-26 2 of 3 ITEM NO: 514-20-001

EXPORT CONTROLLED DATA: This document contains technical information whose export is governed by U.S.

International Traffic in Arms Regulation (ITAR). This information must not be transferred to a foreign person/entity without proper authorization of the U.S. Government. Violations may result in administrative, civil, or criminal penalties.

of this contract.

3.2 Accomplish the requirements to install new Split AC Systems in accordance with 2.2 through 2.6, and 2.10 using 2.7 through 2.9 for guidance as well as any relevant manufacturer’s instructions and the following:

3.2.1 Accomplish the requirements of 009-012 of 2.1, including Table One, Columns A and B, Lines One through 10 and Table 3, Columns A and C, Lines One through 7.

3.2.2 Remove and scrap all obsolete fan foundations, ducts and HVAC support brackets. Grind smooth all weld removal sites.

3.2.3 Accomplish the requirements of 009-025 of 2.1 for air hose test of all new inserts and penetrations through bulkheads and decks.

Allowable defects: None

3.3 Accomplish the requirements of 009-009 for the development and implementation to test the refrigerant oil system in accordance with Test Note T-2 of 2.6 using test kit of 2.10. Allowable defects: None

3.3.1 Accomplish the Test and Balance to the HVAC systems in

accordance with Test Notes of 2.4 and 2.5 using 2.7 and 2.8 for guidance. Allowable maximum deviation of air flow: + / - 10 percent from drawing.

3.4 Turn over obsolete fans, unit heaters, controllers, space heaters to the Barge Maintenance Program via the SUPERVISOR for disposal.

3.5 Electrically and mechanically install new split AC unit assemblies in accordance with 2.3 and using 2.9 for guidance.

(I)(G) "OPERATIONAL AND LEAK TEST"

3.5.1 Accomplish an operational and refrigeration leak test on the new equipment installed in 3.2 through 3.3 under normal operating conditions. AC systems shall operate within, and, maintain the parameters of optimum performance listed in the Start-Up and Operating manuals provided by the equipment manufacturers. Allowable leakage: None.

3.5.1.1 Submit one legible copy, in hard copy or approved

transferrable media, listing the total amount of additional refrigerant added to meet full refrigerant charge to the

SUPERVISOR.

3.6 Accomplish the requirements of 009-011 of 2.1 for the installation of new insulation as follows:

3.6.1 On new refrigeration and condensate drain piping.

Installation of insulation shall begin 24 hours after the units have been turned off. Insulation shall not be installed while the AC system is in operation.

3.6.2 Install new stainless steel sheet metal jacketing over all new refrigerant pipes and fittings insulation located exterior of the Barge Seal all seams and joints with silver or gray color polyurethane caulking.

3.6.2.1 On all structural bhd and overhead areas where there

SHIP: YRBM(L) 57 (YRBM 57)

SSP: YOKO-703-26 3 of 3 ITEM NO: 514-20-001

EXPORT CONTROLLED DATA: This document contains technical information whose export is governed by U.S.

International Traffic in Arms Regulation (ITAR). This information must not be transferred to a foreign person/entity without proper authorization of the U.S. Government. Violations may result in administrative, civil, or criminal penalties.

were ducts and spools removed in way of this shipalt.

3.7 Accomplish the requirements of 009-032 of 2.1 for each new and disturbed surface.

4. NOTES:

4.1 None.

5. GOVERNMENT FURNISHED MATERIAL(GFM):

5.1 LLTM:

1. None.

5.2 PUSH MATERIAL:

1. None.

5.3 KITTED MATERIAL:

1. None.