FA5270-17-B-0003_-_Answers_To_RFI-_Round_1.pdf

Answers to Requests for Information (RFI):

Round 1

SOLICITATION NO.: FA5270-17-B-0003 DATE: 18 April 2017 PROJECT TITLE: LXEZ 17-1395, Repair HVAC, 18 CONS, B95, Kadena

Air Base, Okinawa, Japan Question

No.

Reference (Sect/Para/Page) QUESTION GOVERNMENT RESPONSE

Architectural 1 Statement of Work paragraph 3.3 Fire Protection Engineering Services Based on the attached schematic drawings there are some office rooms without doors, Please clarify if these doors including staircase have been taken out or remove. Please provide as-built drawings to properly identify if these areas are in compliance with UFC 3-600-01 and NFPA 101 Life Safety for the preparation of analysis (Fire and Life Safety).

The As-Built drawings have been provided as SOW attachments. However, the as-built drawings are provided for reference. Actual field investigation and survey of the facility must be conducted by the Contractor to ascertain existing conditions before start of design. (Paragraph 3.4)

2 Statement of Work Architectural paragraph 5.1d and i. Enlarged Room Please confirm if the enlargement of Server is sufficient for accommodating equipment based on the Space requirement IAW UFC 3-580-01 in paragraph 2-4.2. Please advise.

Intent of this work is to remove existing wall between two server rooms to make one server room.

3 Statement of Work Architectural paragraph 5.1 Removal of Existing Ceilings

Are the existing video projector racks and ceiling fans to be removed and reinstalled? Please advise.

Ceiling fans should be removed and all other materials should be removed and reinstalled if it is affected to complete the work. (Paragraph 5.2, a and 5.3, d and j)

4 Statement of Work Architectural paragraph 5.1 o. Equipment require cover The SOW Mentions "all furniture, furnishing and equipment to remain in place required adequate cover". If these items to remain, it will be difficult for contractor to perform the renovation work specially for the ceiling removal. The contractor will put the scaffolding up in all areas. Please advise.

The contractor can move remaining items within the facility, and store and protect properly, and return to original place. (Paragraph 3.13)

5 Statement of Work Architectural paragraph 5.1 n. Paint interior and Exterior and repair wall covering

What is the extent of interior and exterior painting? Is it only for the affected area or entire building? Repair all damaged vinyl wall covering may not be appropriate because the existing color will not match the existing. Please advise.

This paragraph is only for new surfaces. Repair by painting all damaged VWC to match adjacent wall surfaces in texture and color.

Mechanical 1 SOW Paragraph 5.1, Items c and j Indicates to remove and provide ceiling insulation. Please confirm if the new insulation shall comply with ASHRAE 90.1 - 2016, Table 5.5-2 which requires higher insulation R-Valve (approx R- 28 to R-30) for Kadena AB (Climate Zone 2A).

Yes, New insulation shall comply with ASHRAE.

2 SOW Paragraph 5.2, Item e Indicates to provide dedicated OA system (DOAS) in accordance with UFC 3-410-01. UFC 3-410-01, paragraph 3-2, indicates to supply 100% OA directly to all spaces when occupied. Due to ceiling space limitation, existing ceiling space may not accommodate the additional ductworks for the DOAS. Therefore, is it acceptable to provide DOAS with the conditioned OA supply duct to be connected at the mixing box of the AHU rather than providing separate OA supply duct to each spaces as required in UFC 3-410-01, para 3-2. Please confirm.

Yes, it is acceptable.

Electrical

SOLICITATION NO.: FA5270-17-B-0003 DATE: 17 April 2017 PROJECT TITLE: LXEZ 17-1395, Repair HVAC, 18 CONS, B95, Kadena

Air Base, Okinawa, Japan Question

No.

Reference (Sect/Para/Page) QUESTION GOVERNMENT RESPONSE

1 Electrical description of work para 5.3.l, page 11 of 45 Please clarify scope since there are two HVAC emergency shutdown required by criteria as follows:

a. Shutdown of air handling unit by associated duct smoke detector protecting the particular air handling unit as required in NFPA 90A, para 6.4.3 for fire protection.

b. Shutdown the air distribution and exhaust systems throughout the= building and close all dampers leading to the outside as required by para B- 4.3, UFC 4-010-01 for antiterrorism.

Shutdown is accomplished by emergency shutoff switch (or switches) normally located at facility entrances/exits similar to the MNS local operating console (LOC). Although there are common HVAC equipment required to be shutdown by fire (duct smoke detector) and by emergency shutoff switch (for antiterrorism) like air handling units; the control system for shutdown of these equipment for fire and antiterrorism is entirely independent from each other. Please advise if our interpretation is correct?

Both HVAC emergency shutdowns are required by SOW. Shutdown of air handling unit required by NFPA 90A, see Electrical SOW. Shutdown of air distribution system required by UFC 4-010-01, see Mechanical SOW.

2 D50, page 11 of 43 This paragraph requires electrical testing to be in accordance with NETA acceptance testing specifications; is Japanese standard testing procedures not acceptable?

Equivalent Japanese testing procedure are acceptable.