187_MD103_R1_AMENDMENT 008.pdf
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- Solicitation number
- N6247026R0012
About this file
This is a mechanical ductwork removals plan for Building 60 at Portsmouth Naval Shipyard in Kittery, Maine, prepared by Naval Facilities Engineering Systems Command (NAVFAC).
The drawing details first floor HVAC and industrial process equipment removal requirements, specifying the identification, disconnection, and capping of ductwork and mechanical systems throughout designated spaces. Key removal tasks include: extraction of capped exhaust air ducts running from interior building locations to roof level; removal of portable AC units; disconnection of dust and fume collector arms (four typical units); and elimination of various ductwork assemblies with specified diameter pipes ranging from 6 to 36 inches. The document references CLIN 002 for industrial equipment removal requirements and mandates coordination with architectural drawings for patching penetrations, hazmat drawings for hazardous material protocols, and existing steam condensate system testing prior to commencing removals. The mechanical subcontractor is responsible for identifying, making safe, cutting loose, and capping items designated for demolition, with the general contractor assuming responsibility for final demolition and off-site removal to authorized salvage facilities. The drawing was finalized on October 1, 2025, with an amendment dated March 10, 2026, and includes a graphic scale of 1/8 inch equals 1 foot for reference.
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Text version
AA
EF
E
EF
E
REMOVE CAPPED EA DUCT
RUN IN ENTIRETY FROM INSIDE
BLDG UP TO ROOF LEVEL
EF
E
REMOVE
PORTABLE
AC UNIT
ø
E A
18ø TO PRESS
20ø TO PRESS
32ø 28ø EA
24ø 18ø EA
DUST/FUME COLLECTOR
ARM (TYP 4)
8ø CAPPED
18ø 8ø
8ø CAPPED
8ø
18ø DROP
TO PRESS
8ø DROP TO
EQUIP (TYP 3)
ABANDONED 18x18
26ø UP TO
ROOF LEVEL
EF
E
20x12
SA UP
S-E
E
(TYP 3)
8ø EA UP
EF
E
8ø MUA TO EQUIP
8ø 8ø DN
16ø DN12ø DN
6ø
18ø
20ø22ø
EF
E
22ø 6ø
12ø
12ø
26ø UP TO
ROOF LEVEL 5
16ø DUST COLLECTOR
DUCT, CAPPED
E-E
E
12ø EA UP
22ø
22ø UP
TO ROOF
LEVEL 5
DN
6ø
EF
E
REMOVE
PORTABLE
AC UNIT
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MD223
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WOMENS
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CORRIDOR
SCALE: 1/8" = 1'-0"
B1
FIRST FLOOR MECHANICAL DUCTWORK REMOVALS PLAN - WEST
SATISFACTORY TO DATE
APPROVED
FOR COMMANDER NAVFAC
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DRAWFORM REVISION: 14 SEP 2023
DESIGN MANAGER
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GENERAL NOTES REMOVALS KEYNOTES
1/8" = 1' - 0" 0 5' 10' 15' 30'
GRAPHIC SCALE
KEY PLAN
CHECK GRAPHIC SCALE BEFORE USING
MATCH LINE
PLAN
NORTH
1.
2.
3.
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5.
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7.
8.
SEE M-001 FOR MECHANICAL LEGENDS, ABBREVIATIONS AND GENERAL NOTES.
REMOVE ALL HVAC AND INDUSTRIAL PROCESS EQUIPMENT AND ASSOCIATED CONTROLS, WIRING AND DUCTWORK THROUGHOUT THE SPACES SHOWN
ON THIS SHEET UNLESS OTHERWISE NOTED.
COORDINATE WITH ARCHITECTURAL DRAWINGS FOR PATCHING OF OPEN FLOOR, WALL AND CEILING PENETRATIONS ASSOCIATED WITH REMOVALS.
MECHANICAL SUBCONTRACTOR SHALL IDENTIFY, MAKE SAFE, CUT LOOSE AND CAP ALL ITEMS SPECIFIED TO BE DEMOLISHED. THE GENERAL CONTRACTOR SHALL BE RESPONSIBLE FOR DEMOLITION AND REMOVAL OFF SITE TO AN AUTHORIZED SALVAGE FACILITY.
REFER TO CLIN 002 FOR LIST OF INDUSTRIAL EQUIPMENT REMOVAL REQUIREMENTS.
COORDINATE REMOVAL WITH HAZMAT DRAWINGS AND REQUIREMENTS.
EXISTING MECHANICAL EQUIPMENT, DUCTWORK, AND PIPING THROUGHOUT THE BUILDING TO BE REMOVED, UNLESS OTHERWISE NOTED.
CONDUCT TESTING OF EXISTING PUMPED STEAM CONDENSATE SYSTEM RETURN LINE BACK PRESSURE AND REPORT RESULTS TO CONTRACTING
OFFICER PRIOR TO COMMENCING WITH REMOVALS IN BUILDING 60.
REMOVE THROUGH-WALL EXHAUST FAN, AND ASSOCIATED CONTROLS AND WIRING.
REMOVE EXHAUST FAN AND ASSOCIATED DUCTWORK, LOUVERS AND CONTROLS.
[CLIN002] REMOVE EXHAUST FAN AND ASSOCIATED DUCTWORK, HOODS, VFD, CONTROLS, AND WIRING.
[CLIN002] REMOVE EXHAUST FAN AND ASSOCIATED DUCTWORK, ENCLOSURES, HOODS, CONTROLS, AND WIRING.
[CLIN002] REMOVE ENTIRE EXHAUST DUCT RISER AND ASSOCIATED SUPPORTS.
[CLIN002] REMOVE DUCTWORK ASSEMBLY.
(THIS SHEET ONLY)
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| Sheets |
| MD103 - FIRST FLOOR MECHANICAL DUCTWORK REMOVALS PLAN - WEST |
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