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Question
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E3.1 PLEASE VERIFY WHAT FACILITIES ARE AFFECTED WHEN THE UTILITY TRANSFORMING FEEDING THE LAB BLDG. IS DE-ENERGIZED.
PLEASE PROVIDE THE MV CABLE CONNECTION TYPE ARE USED IN THE EXISTING UTILITY TRANSFORMER, THE REPLACEMENT TRANSFORMER, AND VCB-1.
WHAT IS THE PRIMARY VOLTAGE AT THE TRANSFORMER?
260513-2.02 INDICATES WE PROVIDE 5KV RATED CABLE.
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Answer
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The plan was to isolate just the lab by disconnecting it at CB #3, the other facilities will be temporarily out of power during this transition. Field verify connection types. Voltages are shown below. EC is responsible for 5kV cable. Refer to Addendum 4 Responses to Questions and Additional Information Attachment.
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Submitted
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3/19/2024 08:17:00 AM (CT)
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Question
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E0.0 POWER/SPECIAL SYSTEM GENERAL NOTES E,F,G & H.
THERE IS NOT AN EXISTING FIRE ALARM SYSTEM AND SO IT APPEARS THERE IS NOT A NEED FOR NOTIFICATION OF ALARM. CAN NOTE F & G BE IGNORED?
NOTE H INDICATES THAT IF A DEVICE IS NOT DRAWN BUT IS REQUIRED FOR THE UNIT TO OPERATE THAT IT IS THE RESPONSIBILITY OF THE CONTROLS CONTRACTOR. DOES THIS PUT THE UNIT DUCT DETECTORS IN THE CONTROLS CONTRACTOR SCOPE?
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Answer
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F and G can be omitted. Per note E, the EC shall provide and install the duct detectors. See duct detector detail.
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Submitted
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3/19/2024 08:01:11 AM (CT)
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Question
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260513-3.02, 262413-3.02, 262416-3.03 pLEASE VERIFY THAT "CERTIFIED" NETA TESTING IS A PROJECT REQUIREMENT PER THESE SPECIFICATIONS AND THAT IS THE EXTENT OF THE REQUIREMENT FOR THE PROJECT.
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Answer
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Provide testing as specified.
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Submitted
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3/19/2024 07:50:57 AM (CT)
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Question
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262816-7 2.E PLEASE VERIFY THE TYPE AND SIZE OF BREAKER THAT REQUIRE PRIMARY INJECTION TESTING
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Answer
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Section 26 28 16 3.04 C 2 - delete sections d and e. Perform electrical testing for molded case circuit breakers 600A and larger.
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Submitted
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3/19/2024 07:47:27 AM (CT)
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Question
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260010-2 C.1-4 QUALIFICATION STATEMENTS.
PLEASE PROVIDE MORE INFORMATION ON THE QUALIFICATION STATEMENTS. IS THE CITY REQUESTING EMPLOYEE RESUME INFORMATION OR CERTIFICATIONS FROM THIRD PARTY AGENCIES?
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Answer
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Resume type information showing the contractor has done similar work in the past and can perform the work as described in the construction documents.
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Submitted
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3/19/2024 07:27:31 AM (CT)
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Question
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260010-1 A.1 POWER SYSTEM STUDIES, PROJECT DOCUMENTS INDICATE WE ARE TO SUBMIT A COORDINATION STUDY PRIOR TO SUBMITTING ON SWITCHBOARDS & PANEL BOARDS. WILL THE CITY BE PUBLISHING AVAILABLE FAULT CURRENT ON THE SECONDARY OF THE UTILITY TRANSFORMER? THIS EQUIPMENT IS OWNED AND MAINTAINED BY LCWWTP SO LES CANNOT PROVIDE THIS INFORMATION THAT IS NECESSARY FOR THESE CALCULATIONS.
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Answer
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The coordination study/fault current study will be provided by the electrical contractor. The city will be able to provide transformer properties, ie impedance, voltage, kW. Fault current info will be acquired from the study itself.
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Submitted
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3/19/2024 07:22:59 AM (CT)
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Question
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i as the engineer got a question from a rep asking if scroll compressors would be allowed as equals on the chiller.
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Answer
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Schedule changed to require minimum of (2) screw compressors or scroll compressors with the lead compressor to be variable capacity.
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Submitted
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3/15/2024 10:53:49 AM (CT)
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Question
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i as the engineer got a call about the chiller from a rep, he is concerned about the effluent water going through the chiller. can you describe the “cleanliness” of the water? Does the water tend to corrode out certain metals. Currently I believe we have steel / copper in the chillers. He is asking if we need to consider copper-nickel or stainless steel.
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Answer
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Schedule changed to require Cu/NI or Stainless steel condenser heat exchanger.
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Submitted
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3/15/2024 10:53:02 AM (CT)
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Question
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Is there a cost estimate or budget associated with this project?
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Answer
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No, not at this time.
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Submitted
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3/12/2024 01:22:40 PM (CT)
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Question
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When submitting 3 references do I need to upload photos of completed jobs or would you prefer contact information for jobs we have completed?
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Answer
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Each reference must include the following:
Owner:
Street Address:
City:
State:
Zip:
Name Owners Representative:
Phone:
Project Name and/or Number:
Contract Amount:
No photos are required.
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Submitted
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3/11/2024 12:13:56 PM (CT)
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