B09_Questions_and_Answers_02_0003.pdf
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- Solicitation number
- 140P8121R0015
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This document contains answers to questions regarding solicitation number 140P8121R0015 to replace air chillers and generators at Lake Mead National Recreation Area in Nevada. The National Park Service requires the work to replace isolation valves at the chilled water pumps and chillers be performed without completely draining and shutting down the chilled water system, which serves a 24/7 critical operations building that must remain operational at all times. The contractor must investigate and propose alternate methods to isolate each chiller while performing the necessary work, such as using freeze plugs, without draining the entire system at once.
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140P8121R0015 Answers to Solicitation Questions #2
1) The Chilled Water System will need to be shut down and drained to change the isolation valves out at the Chilled Water Pumps and the Chillers. Will this work need to be performed during off hours? Please advise.
The ICC building which the chilled water system servers is 24/7 critical operations and must remain operational at all times. There are no off hours and one chiller must remain fully functional at all times.
Draining the entire system will not be allowed.
Contractor to investigate and propose alternate methods such as freeze plugs to isolate each chiller and perform the work necessary.
File details come from the government source that posted it. Updated .