Amendment0006_N4008018R3519.pdf

AMENDMENT 0006

N40080-18-R-3519: ENERGY REPAIRS MULT BLDGS NSF

A) Questions and Answers to RFIs submitted by Bidders, answers are in red.

B) Drawings E-109 pertaining to Question 48.

1. 1Is there a current controls contractor for this facility? If so, please provide Company Name. Thanks

Answer: The controller is OMNI by Innotech. The local rep. is KLM Controls 301-752-7113.

2. Do the quantities listed at the bottom of the drawings reflect the totals to be installed?

Answer: No. The table lists quantities required in each room or area (not the total). The take-off should be started from Plan, room to room, for Lighting item (L10, L15, etc.) and Control Device (S1, S2, etc.). For example, drawing E-106, room 213 requires L16, S1(wall sensor). L16 needs 4 fix’s KB retrofitted. Fix. Type KB description, and control device S1can be found on E-101. Room 211 has the same requirement, but the adjacent large open space above these two rooms requires L34, S11(2 ceiling sensors). L34 needs 31 fix’s KA retrofitted.

3. On page 4 of 31 of the solicitation it states that bids shall be submitted in 1.5” three ring binders or bound. Would you consider using binders that .5” or 1” in lieu of 1.5”?

Answer: One .5 or 1” binder is required and 1 hard copy for the Contract Specialist file.

4. The Solicitation refers to an “Expected Visitor Form”. Is this the same as the SECNAV 5512? Where may we obtain this form?

Answer: No, two different forms. If you are planning on being in attendance at bid opening, send SECNAV 5512 Form to me electronically via anita.w.sampson@navy.mil; the SECNAV 5512 Form will be provided as an attachment in this amendment. The “Expected Visitor Form” will not be needed. If you plan on attending bid opening please fill out SECNAV 5512 form and send to me 5 days before bid opening. Bid opening still remains Friday, August 24, 2018, 2:00 PM EST. If you want to dropyou’re your proposal before bid opening date please contact me directly on 301-744-2190 or anita.w.sampson@navy.mil to make arrangements. When filling out SECNAV 5512 form please wet sign signature and any other place on the form where your initials or signature are required.

5. DWG M-102: Please confirm that only two 16 x 8 exhaust fans are required, and the remaining 16 x 8 openings are grilles only Answer: Yes. This crawl space exhaust is designed for just over 1 AC/hr (a basement would have more AC/hr); the new exhaust fans, most likely, will run continuously in the humid summer months.

There shall be two new exhaust fans on the NE side in new 16” x 8” openings and three new, 16” x 8” gross (net 60%) louvered grilles on the SW side.

6. DWG M-103, Keyed Note 5 states that “Innotech with Superlogic Front” is the Base Standard DDC controller; can a fully-compatible equivalent controller be substituted?

Answer: Comply with Section 23 09 00 and Innotech:

The BMS shall comprise a network of controllers (this project only has one controller) selected to suit the required point count and shall be networked over a TCP/IP (100Base-T) primary network, using BACnet/IP as the common communications protocol between devices. Every controller shall be capable of Routing from BACnet MS/TP to BACnet IP on any number of RS485 communications channels and acting as a BACnet Broadcast Management Device (BBMD) if required.

High level interfaces to third party equipment shall communicate via BACnet MSTP, BACnet IP or Modbus, with the BACnet protocol being the preferred interface option wherever possible. High Level Interfaces shall only be used for monitoring and reporting, any control or alarm points must, without exception, be hard wired to the controller in accordance with industry best practice.

Each controller will have the ability to communicate via BACnet/IP and have multiple channels of BACnet MS/TP for high level interfaces. The controllers shall be independently tested by BTL to conform to the requirements of a BACnet Building Controller.

Each controller shall have true universal IO points that can be selected independently as an input or output of any type. All points shall have self-diagnostic features which in the event of a fault will provide software alerts and LED indication. Each point shall be freely selectable in accordance with the following list:

Current Loop Input Current Loop Output Current / Voltage Input (333mVAC Current Transformers) Digital Input (Contact) Digital Input (Voltage) Digital Output Duty Cycle Output Pulse Input (Contact) Pulse Input (Voltage) Pulse Output Sensor Input PT100 Input Voltage Input Voltage Output Current Loop Output

The controllers shall be equipped with an on-board, backlit Human Machine Interface (HMI) to allow authorized personal to interrogate and change system values and timeclock settings locally without the need for specialized equipment. Each controller shall be equipped with an on-board web server to allow local or remote interrogation and adjustment of the system settings and parameters via a computer, tablet or a web enabled mobile device. The controller’s web server shall be compatible with all common web-browsers, without the need for additional plug-ins.

The system (this project only has one controller) shall allow access to a minimum of 10 controllers via a connection to a single controller on the network, the use of gateways or central controllers will not be accepted.

The HTML5 web server interface on each controller shall allow monitoring and adjustment of following the items:

Customizable system values and variables in plain English and engineering units arranged in logical groups to reflect the equipment being controlled. Any available software or hardware point within the controller shall be programmable for display and adjustment.

View and adjust weekly and annual calendars.

Graphically view the logged data stored on the controller and to export the information in CSV format.

Monitor the control logics states and values in real-time and adjust the programs control logic parameters on the fly. Once commissioned, all service and maintenance must be possible via the on-board web-browser without the need for specialized or vendor specific software running on a computer.

Document access – the ability to upload and view external documents that have been stored within each controller.

The web server shall be remotely accessible through standard TCP/IP infrastructure, and locally via the controllers USB connection.

The controllers shall be equipped with up to 4GB of on-board memory for data logging and local media storage of wiring diagrams, functional descriptions and operating instructions. The on-board memory shall also provide storage for 180 million data logging records.

Prior to commencing installation, the control contractor shall submit a detailed functional description including points lists, detailed network design diagrams and valve selections for approval by the consulting engineer.

7. Please confirm this project requires a superintendent, SSHO, and QC manager onsite that is not allowed to perform construction work and must solely focus on their supervisory responsibility.

Answer: Due to the nature and magnitude of this project, a Superintendent may also serve the role of SSHO, and QC Manager. However, there must be 2 QC Managers, one for Mechanical and one for

Electrical trade. In other words, a Mechanical or Electrical QC Manager may perform the duty of Superintendent.

The successful Contractor is responsible for the Safety, Quality Control and Supervision of the project construction. The Superintendent may perform the construction work, if it finds appropriate.

8. Please confirm this project will require the submission, for approval, of a project safety plan following

EM385 and a Quality Control Plan.

Answer: Yes. The successful Contractor must be familiar with the requirements of EM 385-1-1, and provide Safety Plan to cover all the construction tasks. This Plan may be the company standard Operation and Safety practice, from PPE, Barricade, Barrier, Work Stand/Platform, Hazard Source Isolation to Lock-out/Tag-out, Etc.

Submit Quality Control Plan and Reports as described in Section 01 45 00.00 20.

9. Please confirm one person can act at the superintendent, SSHO, and QC manager onsite, if not please provide how many site supervisors are required.

Answer: See Item 7 above.

10. Are we required to submit a construction schedule with our proposal?

Answer: No.

11 Does this project require a cost loaded schedule post award that links project payments with project tasks and is updated regularly?

Answer: No; however, the Project Schedule may need to be updated to reflect the construction progress in conjunction with actual payments as requested by the Contracting Office.

12 Does this project require escorts?

Answer: Yes, in certain rooms of building D323, D327, 116. In general, works in those locked rooms will be under the observation of a responsible security person. A designated person from the Government will coordinate the work in advance, this person will be named after award.

13) If escorts are required confirm which buildings require escorts.

Answer: See Item 12 above.

14) If escorts are required confirm adequate escorts will be provided by NAVFAC/the customer?

Answer: See Item 12 above.

15) Confirm all work is during standard working hours or provide the activities that you want performed after standard hours (nights & weekends).

Answer: Yes. Standard working hours only.

16) Does a stamped engineered demolition plan need to be provided for approval to properly verify that the items to be removed do not support adjacent existing structures as described on drawing G-100 general note 6?

Answer: No. We don’t expect any demolition plan from the Contractor. However, when the demolished fixtures (by replacement and removing) are suspected to contain PCB ballast, please report to the Contracting Office immediately for handling instruction. Under this contract, the Contractor is not responsible for the disposal of PCB ballasts.

17) Will the building be occupied during construction?

Answer: Yes.

18) Confirm the building occupants will remove personal items and secure their work area prior to construction work taking place.

Answer: A designated person from the Government will coordinate the work in advance, this person will be named after award.

19) Are we expected to work at each of the building location simultaneously?

Answer: Yes. The construction window is 180 days. The Contractor’s resources and capability should reflect in its construction schedule. See Item 22.

20) How much notice is required to gain access to a room to rebuild the light fixture?

Answer: At least one day in advance. In general, according to the Contractor’s construction schedule, a designated person from the Government will coordinate the work in advance, this person will be named after award. Certain areas within a building may be vacant at one time to facilitate the construction.

21) If we are required to work at each building at the same time is each location required to have a superintendent, SSHO, and QC Manager onsite at all times or can the supervision hover between locations so one supervisor can cover multiple areas?

Answer: It’s the successful Contractor’s discrete, but at least one manager is on site all the time. See Item 7 above.

22) We do not feel 150 calendar days is adequate for this project. From submittal approval, material procurement, and construction, 210 calendar days would be a more accurate period of performance.

Please confirm 210 calendar days is acceptable.

Answer: 180 calendar days from the date of award.

23) Confirm bid proposals can be submitted electronically to anita.w.sampson@navy.mil.

Answer: No. since this requirement is sealed bid, any bidder who wishes to participate must drop off bid in person, see Question 4 for instructions.

24) Does removing and replacing lights fall under the “utility cutover & interruptions” after hours work requirements?

Answer: No. Due to the nature of the tasks, a prolong shutdown is not anticipated. However, the tasks must be performed strictly in accordance with OSHA Lock-out/Tag-out rule and other safety requirements.

25) Is a third party commissioning agent required for the mechanical work?

Answer: For this project TAB work is required, per Section 23 05 93 and testing and commissioning of the Controller per Section 23 09 00. An independent TAB company shall perform the TAB work and the control designer/installer shall prove the system per Section 23 09 00, 1.4 Submittals, SD-06 Test Reports – start up report, PVT (performance verification test) procedures, PVT report. The TAB and Controls entities shall work together to test and verify a fully functioning system through. The complete system shall be tested through all modes of operation.

26) Is a third party testing and balancing company required for the mechanical work?

Answer: See number 25 above.

27) Is two season commissioning required for the mechanical work?

Answer: No, however, the system shall be tested through all modes of operation. Data shall be reported for the system in the various stages of heating and in the cooling modes.

28) Is two season TAB required for the mechanical work?

Answer: See number 27 above.

29) Please provide a submittal register.

Answer: Submittals are per listed on the drawings and in the specifications.

30) Please provide the manufacturer of the mechanical control panels we are required to work on under this project.

Answer: Currently, the unit is a heat pump run by a programmable thermostat and the duct electric heaters have their own wall mounted control stat. These controls will be removed and replaced by a new controller with enough inputs and outputs to manage all the equipment plus manage a new OA dehumidifier. The controls provider will design the system, provide all of the equipment, install the components, program, test and verify and provide training.

31) Confirm this project must conform to the “Buy American Act”.

Answer: Yes, see page13 of solicitation, FAR reference 52.225-9 BUY AMERICAN-CONSTRUCTION MATERIALS (MAY 2014); this reference is in full text in the solicitation.

32) If required can a variance be issued pertaining to any Buy American Compliance requirements that pertain the LED retrofit Kits on this project.

Answer: No

33) Are we changing just lamps with built-in drivers or are we doing a complete retrofit of the light fixture?

Answer: Complete retrofit of the light fixture: Installing 120 VAC LED driver, replacing existing Fluorescent lamps with LED lamps (without built-in driver), disconnecting and leaving the existing ballast in place.

34) Drawing E-101 Retrofit instructions Note 1 says, “exist. fluorescent ballasts to be disconnected and left in place. Exist. HID ballasts to be removed, if it’s necessary.” Does this mean if there is space in the fixture to leave the existing ballasts and install the new retrofit kits then the old ballasts do not need to be removed and disposed of?

Answer: Correct for most 4ft fluorescent fixtures. Also, see Item 33 above.

35) It was mentioned at the site visit that the hallway in building 1901 should not be on O/S because it's a childcare facility. Drawings show O/S's, please confirm what is required?

Answer: There’s no specific regulation on Lighting Control for a Childcare Facility. GSA Sustainable Facilities do suggest to have OS in the Toilet Area to minimize the bacteria transfer among children.

Revision to Drawing E-102: DELETE S3 (OCCUPANCY SENSOR) FROM THE HALLWAYS.

36) If we are doing a complete retrofit, how will this affect battery backup fixture's?

Answer: See revision below.

Revision to Drawing E-101: Under LIGHTING RETROFIT INSTRUCTION add Note 6 to read: “LEAVE EXIST.

EMERGENCY FLUOR. FIXTURES AS IS; NO WORK REQUIRED. SUBMIT THE BIDS AS SHOWN ON THE DRAWINGS. DURING THE CONSTRUCTION, STORE, MARK THE UNUSED RE-TROFIT KITS OR FIXTURES “SPARE FOR BUILDING XXXX”; RETURE THEM TO THE CONTRACTING OFFICE WHEN THE PROJECT IS

READY FOR CLOSE-OUT.”

37) The drawings do not show any battery backup lights or retrofit kits. Note 4 under retrofit instructions on drawing E-101 is the only place they are mentioned. Will new battery backup drivers be required and if so how many and what type?

Answer: See Item 36 above.

38) Is it acceptable to use propress connections for the valve replacement work?

Answer: No, ProPress fittings are not allowed.

39) Confirm NAVFAC will be responsible for moving furniture that is in the way of installing valves in building D323.

Answer: NAVFAC will not move the furniture, however the occupants, with a weeks’ notice, will be responsible to move their belongs out of the way for the construction.

40) If the contractor is responsible for moving furniture please provide the number of cubical furniture power poles that are in the way and will required to be moved to allow the modular furniture to be relocated.

Answer: See Item 39 above.

41) Do you want to also replace the steam traps along with the valves?

Answer: YES, the contract is AMENDED (See amendment) and all of the steam traps where the valve is replaced will be replaced.

MECHANICAL AMENDMENT:

Replace all of the traps on the radiators in addition to replacing the valves. Traps are all ¾” and shall be new thermostatic radiator steam trap, cast bronze and 125 psi maximum operation pressure.

42) Drawing M-102 note 2; discuss replacing a 24” by 14” louver with a 16” by 8” louver by infilling the wall with pressure treated wood. Instead of infilling the wall with wood, is it acceptable to install a painted louver in the 24” by 14” existing opening in the foundation that only has an area 16” by 8” that will allow air to pass through?

Answer: See Sheet Note #2, the openings are to be framed in 2” x 4” pressure treated wood studs secured into the blocks. Metal sheet in the wood frame with the 16” x 8 “ louver will then be allowed.

There will be 3 – 16” x 8” louvers, rated at 60% net ( 2.66 SF gross and about 1.6 SF net) and assuming about 400 FPM this would permit air flow of 640 CFM.

43) Is any structural reinforcement required when demolishing CMU to make any opening for the new exhaust fans as shown on drawing M-102?

Answer: See Sheet Note, 2, wood frame required around the opening.

44) On drawing E-106, please confirm room 228A should have four type KB retrofit kits installed.

Answer: Room 228A will have 2 type KB retrofit kits as described. If more fixtures are found in the room, they should be disconnected during the construction.

45) On drawing E-108, please confirm if room number 101A which shows two S5s and two S3s should have a total of 4 ceiling occupancy sensors and 4 wall mounted dimmers.

Answer: Room 101A will have total 2 dimmers (1 for each track light), and 4 ceiling OS (2 on each side for cove lighting). See revision below.

Revision to Drawing E-101: Under the table of COMMON LIGHTING CONTROL DEVICES, revise quantity for Item No. S3 from 2 TO 1.”, and add note to read: “PROVIDE BLANK COVERS FOR 2 UNUSED WALL

DIMMER BOXES.”

46) Note 1 under “lighting retrofit instruction” on drawing E-101, says, “existing lamps to be removed and disposed of in accordance with the state of Maryland” does this require a manifest to be signed by Indian Head environmental before the lamps are removed from the site?

Answer: No.

47) In Building D327, some of the existing 2x4 lighting appeared to be equipment with emergency ballast.

Can a count be provided to determine how many 2x4 fixtures need to have emergency backup?

Answer: See Item 36 above.

48) In Building 116, there appeared to be existing occupancy sensors on many of the fixtures. Is the intent of the RFP to provide all new sensors or should this requirement be deleted in its entirety.

Answer: Exist. OS associated with fixtures in warehouse and storage area to be maintained as is. See revision below.

Revision to Drawing E-109: WITHIN THE WAREHOUSE AND STORAGE AREA, DELETE ITEMS S3 AND AS MARKED IN DRAWING. Drawing is after questions and answers to RFIs.

49 RFI # 1-DRAWING PAGE E-102 BUILDING 1901 LIGHTING LEGEND L3 RETROFIT FIXTURE DOES NOT MENTION REPLACING LENS WHICH DURING SITE VISIT NOTICED LENS WERE MISSING PLEASE CLARIFIY.

Answer: See revision below.

Revision to Drawing E-102: Add note for Item L4 to read: “PROVIDE NEW GLASS LENS FOR 2 EXIST.

FIXTURES IN THIS AREA.”

50. RFI # 2 DRAWING PAGE E-101 REPLACEMENT LEGEND TYPE KA,KB,KC,KD,KA5,KB5,KC5 AND KD5 CALL

OUT TYPE OF LAMP AND QUANTITY.THE QUANTITY OF LAMPS DOES NOT MATCH THE QUANITY OF LAMPS IN THE EXISTING FIXTURES.PLEASE CLARIFY THAT THE QUANITY OF LAMPS IS CORRECT.

EXAMPLE A FIXTURE WITH 4 EXISTING LAMPS IS CALLED TO ONLY HAVE 3 LAMPS INSTALLED PER

LEGEND.

Answer: The quantity of lamps described on the drawings are correct. In many places the exist. 4-lamps and 3-lamps are retrofitted with 3-lamps and 2-lamps.

The new sockets in the fixtures should be arranged consistently.

51. RFI # 3 DRAWING PAGE E-109 BUILDING 116 RM 1BO3,1C01,1D01 REFERS TO S3 FOR SENSORS WHICH

CALLS FOR QUANITY OF 2 ALL THE EXISTING LIGHTS HAVE THERE OWN SENSOR FOR EACH LIGHT ARE

WE TO LEAVE THE EXISTING SENORS AND ADD 2 NEW SENSORS PLEASE CLARIFIY.

Answer: See Item 48 above.

52. RFI # 4 DRAWING PAGE E-109 BUILDING 116 RM THERE ARE QUITE A FEW LIGHTS ABOVE SHELVING

WHICH ARE NOT ASSESSABLE ARE THE SHELVES TO BE REMOVED PLEASE CLARIFIY.

Answer: The Contracting Office with coordinate with local supervisor for temporary re-arrangement of the existing shelves during the construction.

53. Please confirm that no hazardous materials have been identified nor should be accounted for as part of this proposal.

Answer: Asbestos Containing Materials and Lead Paint are suspected. In general, the work described in this project does not affect the existing building elements. However, if the disturbance of hazardous materials is encountered during the construction, stop that portion of work and notify the Contracting Officer immediately.

54. May the QC manager/SSHO also act as site Superintendent (aka Triple Hat)? Please provide/confirm the administrative requirements for this project.

Answer: See Item 7 above.

55. Will the individual qc/SSHO or team (either 1 triple hatted or 2 man team) be allowed to run this project with work taking place at multiple buildings simultaneously or will additional safety/qc be required to work at more than one building at a time? If each building must have separate supervision has the idea of competing 1 building at a time, with the same QC/SSHO, been accounted for in the predetermined 150 day project duration?

Answer: See Items 7 and 22 above.

56. Will additional RFIs be answered after the site walk to answer questions that will come up after seeing the sites?

Answer: Yes; however, RFI period for questions is closed. There will not be any more scheduled site visits for this requirement.

57. Will 3rd party commissioning be required for this project? If so please specify which items will be commissioned and to what extent existing remaining equipment should be included.

Answer: See questions 25 and 26 above.

58. Please quantify/itemize all new/existing work which will require 3rd party TAB.

Answer: See submittals listed on the drawings and in the specifications.

59. During the site walk it was mentioned that the radiator valve replacement at Building D323 would have to take place during non-heating months. Can the project duration be extended to accommodate all work taking place after the 2018/2019 heating season so that work on all buildings can be completed continuously (more efficiently) with 1 management team instead of possibly pulling off of the project and returning in the spring? By the time this project is awarded and the submittals are approved there will most likely not be enough time to complete the valve replacement this year.

Answer: See Items 7 and 22 above.

60. Please confirm that only the supply pipe on the radiators, from new valve to floor/wall, will be insulated and please provide the minimum allowable insulation thickness.

Answer: Only insulate the supply pipe.

61. During the site walk at B323 it was noticed that there is office furniture preventing access to most of the radiators which would be required for the valve replacements. Should all necessary moving of furniture at this and other buildings be included in this proposal or will the customer/s be responsible for moving their furniture?

Answer: The occupants shall be responsible to remove furniture and covers from the radiators to clear the area for the contractor to work.

62. Please confirm that all radiator steam piping is the same size throughout B323 and that, as shown/written in the drawings, all new valves will be ½”.

Answer: Yes, all new thermostatic radiator valves are ½”.

63. During the site walk it appeared that the crawl space walls at B327 were composed of 8” CMU with

EIFS on exterior side. Please confirm this is correct. Is the CMU grouted and reinforced?

Answer: Yes, it is grouted and reinforced.

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