Attachment L - Contractor Questions.pdf

HM157524R0016

UNCLASSIFIED Attachment L

# Date Document Section Question Answer

1 6/27/2024 During what hours will work take place?

M-F, 0700-1530, except Federal holidays. See spec 01 0111 section

1.10.3 for scheduling weekend work for shutdown of any services.

2 6/27/2024 Are vehicles allowed on the site?

Yes, work vehicles will be issued parking passes. A limited number will be made available. See spec 01 01 11 section 1.13.5.1. Visitor parking may be used for personal vehicles.

3 6/27/2024 Who is contacted to handle reprogramming of battery monitor or energy monitoring systems?

Cell Watch - contact Eaton Corp for any reprogramming due to UPS demo/removal.

See #23 below for contact information for Zagros

4 6/27/2024 What type of bus duct, that will be tied into, is used for the existing feeds?

Schneider/Square D I-line II bus, 3000A. See provided catalog sheet.

This is the bus that the contractor will tie into and need to match.

5 6/27/2024 What is the weight limit of the raised flooring system, and can plywood or similar material be used to disperse weight?

Refer to spec 09 69 13, section 2.1.1 for information regarding loading and information on Tate Inc. raised floor system. Loads may be distriubted over flooring through approved means for moving loads over raised floor.

6 6/27/2024 Will a material laydown/storage area be provided for the contractor?

Yes. A material laydown/storage area will be identified and coordinated with the COR prior to beginning of on site activities.

7 6/27/2024 What is the room 1-058/2-058 elevator weight limit? Elevator posted rating is max. 2200 lbs.

8 6/27/2024 UPS room B 1-052 - how do you get equipment in?

The overhead roll up door on the north end of the room may be used to bring materials in and out. Government will not be providing a lift for access to any areas.

9 6/27/2024 Can you get a lift to the mezzanine?

yes, a small one. There is an area where material, including a small lift, can be lifted up to the mezzanine level.

10 6/27/2024 How many escorts are available? The Government will provide the needed escorts as necessary.

11 7/2/2024 Dwg E000 Sheet 11 of 24

Dwg E000, Sheet 11 of 24, Electrical General Notes, item 11;

Could you provide contacts, familiar with the above referenced project, for Zagros Engineering, Johnson Controls, Simplex and Notifier?

See item 23 below for contact information on Zagros Engineering and Johnson Controls. No specific contact information is provided for Simplex or Notifier.

12 7/2/2024 Dwg E000 Sheet 11 of 24

Dwg E000, Sheet 11 of 24, Suggested Electrical Work Phasing;

Can you provide information and/or cutsheets for the equipment being provided by NGA for this project? We are especially interested in the free standing circuit breakers, the new 3000 A bus ducts, and the new 3000 A switchboards.

All materials, including circuit breakers, switchboards, bus duct, PDUs, and other materials, are to be provided by the contractor. A cutsheet/catalog sheet is being provided for the 3000A bus in order to allow matching of new bus duct.

13 7/2/2024 Can you distribute a list of the prebid site visit attendees Included with amendment 00001 14 7/4/2024 Can an additional site visit be scheduled for 25 or 26 July? NGA will not be hosting any additional site visits.

15 7/4/2024 Is this project subject to a Buy American FAR? If so which one Solicitation: FAR 52.225-9, 52.225-10

16 7/4/2024 Project calls for Installation. Please confirm no materials are furnished by NGA and everything is to be contractor furnished

Confirming that no materials are furnished by the Government; all materials are to be contractor furnished.

UNCLASSIFIED

HM157524R0016

UNCLASSIFIED Attachment L

17 7/4/2024 E-000 Note 24

E-000 General Note 24 call for new Electrical Equipment Support Stands for PDU. Please clarify what support stands would be needed for and if a detail or specifics can be provided.

Details and specifications of a PDU support must be provided by the PDU manufacturer used by the contractor.

18 7/4/2024 Dwg S-002 Drawing S-002 shows trapeze braces for “Hung Utilities”. Are these details to be used for Busway?

S-002 details are general details for instructing how items may be supported. Not all details may apply to the project.

19 7/4/2024 E106 Note 14

E106 Keyed Note 14 calls for the contractor to employ/retain licensed PE to validate equipment layout not to exceed the structural capacity of the slab. Please confirm this is only for load calculations and verification not for any remediations if slab found to not be sufficient structurally.

Confirmed. A licensed PE shall validate the PDU installation to ensure that the equipment is installed and distriubted so that the structural capacity of the slab is not exceeded.

20 7/4/2024 Please provide existing Busway make and model.

Schneider/Square D I-line II bus, 3000A. See provided catalog sheet.

This is the bus that the contractor will tie into and need to match.

21 7/4/2024 Please confirm HEPA cards are only required for core drilling of concrete walls and floors

Sheet E-105, Note B states to provide HEPA vacuuming while drilling in Data Center area. This will apply to concrete floors and walls to contain dust in the clean environment.

22 7/4/2024

Please confirm existing cell watch system is to be removed in its entirety including cablings and cabinets and no modifications to the system or programming are by the contractor

Cell watch demo is limited to wiring to demolished UPS units. Cell Watch is to remain in place for existing UPS units. Contact Eaton Corp.

for any necessary reprogramming of Cell Watch system.

23 7/4/2024 E-000 Note 13

E-000 General Note 13 calls for contractor to contact Zagros Engineering to access all necessary requirements regarding the power monitoring system. Please clarify if any programming is to be included by the contractor or if Zagros will perform any necessary requirements directly for NGA.

For requirements on the existing Energy Management Control Systems (EMCS), contact Johnson Controls, Inc. at 314-812-4556. For requirements on the existing Arnold Power Monitoring Systems (APMS), contact Zagros Engineering (Jamar Neal) 314-341-1836 or jneal@zagroseng.com. Both EMCS and APMS may require updates for removal of the existing UPS units and installation of the switchboards.

UNCLASSIFIED