Q and A 4 for IFB RFP FA283522B0002.pdf
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- Solicitation number
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This document provides answers to five questions regarding Solicitation Number FA2835-22-B-0002 to repair the central plant at Hanscom Air Force Base in Massachusetts. The responses clarify that all existing branch panels and transformers will be replaced, new feeders are required for loads served from existing motor control centers that will be served from new motor control centers, the new Chiller 3 should be 480V, the existing fire alarm panel in the central plant control room will remain and a new panel will be provided, and new automatic controls must be provided to fill the belly tank of the new generator.
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RFIs - Repair Central Plant, HAFB Sol. No.: FA2835-22-B-0002
BBIX, LLC Page 1 of 1 April 19, 2022
FA283522B0002: Repair (Sustain) Central Plant at Hanscom AFB Questions and Answers #4
25 April 2022
1. Question: Please confirm that new transformers and new panelboards are only required to replace existing when extra space is needed in the existing panels as noted in D5012 2.d.
Response: Reference the Final Concept Design Analysis, Basis of Design, D5012, Paragraph 2.d. To clarify, all of the existing branch panels and transformers referenced will be replaced with new. For example, see Final Concept Design Analysis, Appendix I, Sheet E101 and E301.
2. Question: Please confirm that new feeders are to be provided for existing loads served from existing motor control centers that are to be served from new motor control centers.
Response: Confirmed.
3. Question: SOW Section D3028 indicates chiller specifications. Part A of the SOW indicates that chiller 3 is to be replaced. Please confirm that new chiller 3 should be 480V.
Response: Confirmed.
4. Question: Please confirm the existing CoGeneration facility Simplex fire alarm panel located in the central plant control room is to remain and a new fire alarm control panel is to be provided.
Response: Confirmed. Reference Final Concept Design Analysis, Basis of Design, D7050.
5. Question: Please confirm whether new controls should be provided for the fuel supply system to fill the new generator belly tank or if the fuel filling will be manual.
Response: Provide new automatic controls to fill the new generator belly tank.
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