Federal Construction Group, Inc. is tasked to prepare Bldg. 3234 Rm. 012 for a future clean room and to prepare the C‐Scan area for future equipment. The future Clean Room area will need the existing ceiling removed, VAV box and ductwork relocated, air lines removed, door removed and blocked up, and electrical conduit and data raised up. The C-Scan area will need a DI water line installed, an oil separator/dryer and regulator installed on the existing air line, remove abandoned ductwork, electrical, and water pipes, and install 4 new outlets. The Life Safety plan has been updated and therefore there is a need to add some new exit signage and remove an relocate some of the existing signage. The intent of Phase 2 of this project is to provide a large concrete pad, driveway, and the utilities necessary to support NSWC’s expanding Radome Engineering and Logistics
Center (RELC) at Bldg. 3234.
Scope of Work Phase 1
Clean Room Preparations
o Remove the existing lighting above the future Clean Room and conduit/wiring back to nearest junction box. (Conduit must be a minimum
o Remove the existing ceiling tiles and grid in area shown on drawing and support remaining grid where existing grid was removed. (Demo speakers in ceiling)
o All the existing electrical conduit and data wiring above future Clean Room shall be raised or rerouted to a minimum of 14’ AFF. Note* Large conduit
running from Rm 015 to Corridor 018 shall remain the same.
o Disconnect VAV box, ductwork and diffusers above the ceiling that was removed.
Relocate VAV box closer to the trunk line to accommodate future Clean Room.
Relocate hot water piping to new VAV box location. (Piping above future Clean Room must be a minimum 14’ AFF.)
Relocate diffusers between the two existing diffusers closest to the future Clean Room.
Relocate power/control wiring to new VAV box location. (Wiring must be a minimum 14’ AFF.)
Relocate the thermostat and HVAC override switch next to Rm 012 entry door.
o Demo the two existing air lines in Clean Room area and cap above ceiling a minimum 14’ AFF.
o Demo the existing door between Rm’s 012 and 016.
Remove the door and frame between Rm 012 & 016 complete.
Install concrete block in‐kind to existing wall where door was removed.
Remove the Emergency Exit sign above door in Rm 016 and demo conduit and wire back to the first junction box.
Paint both sides of new block with 1 coat of primer and 2 coats of high quality finish paint to match the existing wall as close possible.
C‐Scan Area Preparations
o Core drill a 6” hole 124” AFF on the south wall in Rm 039.
o Provide appropriately sized PVC conduit, wire, breaker, and NEMA 3R disconnect for a 30 amp/230 volt single phase circuit on the outside wall of C‐Scan for HVAC condensing unit fed from Panel LP 2‐SEC.2
o Install an oil separator/dryer, regulator, and quick connect on air line in corner of C‐Scan area.
o Provide a DI water line from basement in ¾” Sch. 80 PVC to the corner of the C‐Scan area with a hose bibb and water hose. Route water line up through floor where abandoned refrigerant lines are currently. Remove refrigerant pipes and fill hole in wall with concrete to a smooth finish.
o Remove exit signs in Rm 016, one in the corridor, and one in Rm 010 and demo conduit and wire back to first junction box.
o Raise the height of the two exit signs in the corridor as shown on the drawing 03234 Egress (002).
o Provide and install 3 exit signs as shown NEW in drawing 03234 Egress (002).
o Exit sign in main corridor shall be 120 volt LED with battery backup to match existing exit signs as close as possible.
Route power (EMT conduit & wire) from were existing exit sign was removed in Rm 016.
o Exit signs in Rm 039 shall be rated for hazardous location, double face, and 120 volt LED with battery backup.
Exit signs shall be wall mounted.
Provide power from panel LPA2‐SEC.2 in appropriately sized PVC conduit and wire.
Provide the appropriate sized breaker in the panel. Label the panel with pencil and the lights with vinyl label stating panel and breaker numbers.
Scope of Work Phase 2
Sanding Pad, Access Road, Site Work, and Natural Gas Piping
o This scope of work is considered to be a ‘Statement of Work with Design Elements’ according to MCMACC Part 1 specifications Section 01 11 00, Summary of Work, Part 1.5.3. As such, the only design elements in this scope of work are related to the sanding pad, access road, gas piping and site work. See attached design requirements, conceptual plan sketch, and historical drawing set PW6133 for more information. The design requirements attachment includes engineering system requirements and performance technical specifications.
o Design submissions are required at 100% Pre‐final design and Final design only. Only one week (7 calendar days) Government review is required for pre‐final design submission. The Government expects required specifications to be outlined on drawings to the maximum extent possible significantly reducing or eliminating the need for a separate specification package.
o Provide as‐built conditions drawing submission. To include in as‐built drawings all items in phase 2 of this statement of work even those items that
are not required to be designed.
o Design and construct new steel schedule 40 natural gas piping and regulator as an extension of the existing above‐roof gas piping system to the new MAU as per NFPA 54 and the International Mechanical Code.
o The existing gas meter distributes gas at 2 PSI (field confirm). Do not route new gas piping through the interior of the building.
o Paint all new gas piping with two coats of high quality enamel safety yellow paint.
Compressed Air Piping
o Tie into existing air piping with in‐kind piping in plating room and route out the south wall for future use.
Stub out south wall and provide a ball valve and cap for future use.
Paint new piping with two coats of high quality enamel paint to match the existing piping.
Provide vinyl labels stating “Compressed Air” every 20’ along piping.
Demo the 5 existing electrical disconnects on the south wall.
Demo the exterior conduit connected to the disconnects complete.
Pull the wire out of the interior conduit feeding the 2nd disconnect from the left and demo the conduit up to the ceiling level inside building and leave for future use.
Fill in the hole from the removed conduit with concrete to a smooth finish.
Pull the wire out of the conduit feeding the J‐box and disconnects on the south wall and leave the conduit for the 30 amp circuit and disconnect.
Demo the 200 amp disconnect on the south wall.
Pull the wire out of the conduit feeding the 200 amp disconnect back to the breaker panel and leave the conduit for future use.
o 480‐Volt 3‐Phase 30Amp Circuit
Provide a NEMA 3R 600‐Volt 30Amp fused disconnect on the south wall where conduit was left where the junction box and disconnects were removed.
Provide a new 30 amp circuit in the existing conduit to feed the new disconnect.
Provide a 30 Amp breaker in panel HPB on the circuit feeding the new disconnect.
Label the disconnect with a vinyl label stating panel and breaker number and label panel with pencil stating “Sanding Booth Exhaust Fan”.
o 480‐Volt 3‐Phase 60 Amp Circuit
Provide a NEMA 3R 600‐Volt 3‐Phase 60 amp fused disconnect on the south wall where the 200 amp disconnect was demolished.
Tie conduit left from the old 200 amp disconnect into the new disconnect.
Provide a new 60 amp circuit from Panel HPB in the existing conduit.
Provide a 60 amp breaker in panel HPB for the circuit.
Label the disconnect with a vinyl label stating panel and breaker number and label the panel with pencil stating “Sanding Booth MAU”.
o 120‐Volt Single Phase 20 Amp Circuit
Provide appropriately sized PVC conduit and wire from panel LPA2‐SEC.2 to a weather proof 6 X 6 junction box on the outside of the south wall.
Provide a 20 amp breaker in panel LPA2‐SEC.2 for the 120 volt circuit.
Label the junction box with a vinyl label stating the panel and breaker number and label the panel with pencil stating “Sanding Booth Lighting/Controls”.
Provide a new LED exterior wall pack light for the area of the future concrete pad and drive.
Wall pack shall be 120V, die‐cast with glass lens, 40K color, 9,000 lumen/or 400W equivalent, with photocell.
Provide a junction box on the conduit feeding the outlet to the right of the roll‐up door inside the building on column and feed new led light with appropriate sized wire and conduit from the existing circuit LPA2‐2 feeding outlet. *Note: Conduit inside plating room must be PVC.