B.1h Questions and Answers.pdf
PDF 61 KB Posted
- Attached to
- Experimental Endstation Clean Room Cabin
- Solicitation number
- 470387
- Issued by
-
Department of Energy Office of Science
About this file
This is a Questions and Answers document for Request for Proposal 470387. The document addresses six clarifications regarding technical specifications for what appears to be HVAC and electrical infrastructure work for a facility with three cabins. HEPA filters will be located on the mezzanine in the space allocated for HVAC and pumps as indicated on drawing PD-INF-HU-1001, sheet 3. Cable tray requirements specify Ladder Type with standard width of approximately 1'-6" and three partitions. Electrical specifications require 208V single phase at 30 Amp and three phase service, with NEMA configurations to be determined per the technical drawings.
Environmental control specifications establish typical office temperature at nominally 24°C with user-adjustable control between 20°C and 25°C. Process Chilled Water will be used instead of glycol mixture, maintained at 12°C (53°F ±2°F) with a flow rate not to exceed 3 gallons per minute per cabin, totaling 9 gallons per minute for all three cabins, per Standard Technical Specifications for NSLS-II Beamline Components NSLSII-PSD-SPC-001 4.3.4. Air Handler voltage is specified as 115 VAC, with power feed and connection to be provided by BNL (Brookhaven National Laboratory).
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Text version
Number Title Description Answer
1 HEPA Filters
2.2 states HEPA filters. Please clarify where these are located, type?
HEPA filters will be located on the mezzanine, in the space allocated for HVAC and pumps as indicated on drawing PD-INF-HU-1001, sheet 3.
2 Cable Tray Width
4.2 states Cable Tray but does not define whether Mesh or Ladder type.
Ladder Type Cable Tray with standard width.
Approximately 1'-6" and (3) partitions
3 Electrical Requirements
4.3.1 states 208V single phase and three phase.
What are amps for single phase not shown on PD- INF-HU-1001, sht 3 of 3? NEMA configurations?
208V single phase shall be 30 Amp.
4 Air Temp
3.4 does not define air temperature desired (comfort?)
Typical office temparature shall be nominally 24° C and control to be adjustable by the user to achieve 20 °C - 25 °C.
5 Glycol Mixture
3.4 does not define glycol mixture, or temperature, or flow rate.
No glycol mixture, Process Chilled Water will be used as per Standard Technical Specifications for NSLS-II Beamline Components NSLSII-PSD- SPC-001 4.3.4. PCW temperature is 12 °C (53 °F +/- 2°F) and shall not exceed 3 gallons/min per cabin, for a total of 9 gallons/min for the 3 cabins.
6 Air Handler Voltage
3.4 does not define air handler voltage (feed and connection by BNL).
Air Handler voltage is 115 VAC.
Questions and Answers Request for Proposal 470387
File details come from the government source that posted it. Updated .