Attachment 14 - B1655_Addendum_02_Narrative.pdf
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- Attached to
- Repair/Renovate LO_Sheet Metal_Bldg 1655
- Solicitation number
- FA6675R24R0004
About this file
This document is an addendum to a contract for the renovation of Air Force Maintenance Low Observable (LO), Metals Tech and Structures Shops Building #1655. The addendum includes revisions to the electrical drawings, such as adding surge protection devices, revising panel schedules and one-line diagrams, and updating equipment and circuitry details. The related federal contract opportunity is for the repair and renovation of Building #1655, with an estimated construction value between $5,000,000 and $10,000,000. This is a 100% small business set-aside, firm-fixed price contract, using a lowest price technically acceptable source selection approach. The solicitation will be issued on SAM.gov, with a site visit on 07/25/2024, RFI deadline on 08/05/2024, and proposal due date of 08/19/2024. The contract will be awarded by the Department of the Air Force Reserve Command.
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ADDENDUM NO. 02
TO: FA667523F0003
CONTRACT DOCUMENTS
FOR
B1655 LO Shop Design
DATE OF ISSUE: 29 August 2024
TO: Air Force Reserve Command
THE CONTRACT DOCUMENTS AND SPECIFICATIONS, INCLUDING THE CONTRACT
DRAWINGS, ARE HEREBY MODIFIED BY THE FOLLOWING LIST OF ITEMS (SUMMARY
DESCRIPTION OF CHANGES IN THIS TRANSMITTAL NARRATIVE ARE GENERAL IN NATURE
AND ARE NOT INTENDED TO BE AN EXHAUSTIVE DESCRIPTIONS OF ALL CHANGES.
REFER TO REVISED CONTRACT DOCUMENTS):
CHANGES TO DRAWINGS
AD-1 Item 01 E-001
A. ADDED and defined surge protection device ‘SPD’ symbol.
AD-1 Item 02 E-110 – POWER PLAN
A. REVISED Main disconnect switch symbol to enclosed circuit breaker, provided with new name tag ‘MDPSE1’, and called out accordingly on the floor plans.
B. REVISED keynote 3 to refer to panelboard schedule for the telecom room panelboard.
C. REVISED the Machine Shop Equipment Schedule to show updated branch wiring and conduit sizes. Additionally, revised the branch wiring column to refer to the One-Line Diagram for feeder sizes. Additionally, the schedule was updated to indicate updated panel: circuit numbering.
D. ADDED circuit, tag, and GFI receptacle for plumbing equipment EWC-1 to floor plan.
E. REVISED Fire alarm NAC panel: circuit tag.
F. ADDED symbol for location of panel ‘MRP1B’ to floor plan.
G. REVISED Washer 1 & 2, and Dryer 1 & 2, panel: circuit tags.
H. REVISED Overhead door panel: circuit tag.
AD-1 Item 03 E-111
B. REVISED floor plan symbol for S.E. enclosed circuit breaker ‘MDPSE1’.
AD-1 Item 04 E-112
A. REVISED weatherproof receptacle to indicate GFI.
B. REVISED Exhaust fan tags.
AD-1 Item 05 E-113 A. REVISED panel: circuit numbers for FFU’s.
B. ADDED panel: circuit numbers for HWP-2, CWP-2, and B-2.
C. REVISED Exhaust fan tags to align with mechanical drawings.
D. ADDED Vacuum plant to plans along with associated disconnect switch and panel:
circuit number.
E. ADDED Tags for indoor split system units.
Amendment No. 2 B1655 LO Shop Design
August 29, 2024 Page 2 of 2
F. REVISED Cold and how water pump tags (CWP/HWP) to align with mechanical drawings.
AD-1 Item 06 E-501
A. ADDED Electrical details for “Service Entrance Grounding Diagram” .
B. ADDED “Arc Flash Warning Label”.
AD-1 Item 07 E-601
A. REVISED Feeder tag, circuit breaker size, and MCB rating for panel ‘MRP1A’.
Additionally, this 84-space panel was REVISED to split into (2) 42-space panelboards, with the additional panel called out as ‘MRP1B’ as a n MLO feed-thru by ‘MRP1A’.
‘MRP1A’ & ‘MRP1B’ were separated to provide adequate spare/space and keep panelboards within 54 circuit limits required by the UFC.
B. REVISED feeder tags for distribution panel ‘MDP1A’.
C. ADDED Vacuum plant system, circuit breaker, and disconnect switch information to
‘MDP1A’.
D. REVISED feeder tags for distribution panel ‘LDP1A’.
E. REVISED Cooper Feeder Schedule mark ‘7’ for 2-pole ‘E40’ feeder.
F. UPDATED circuit numbering for each circuit breaker space.
G. REMOVED indication of “Service Entrance” for MDPSE2.
H. REVISED Main disconnect to enclosed circuit breaker with LSIG/ERMS and associated keynotes.
I. ADDED Clarification on 1200A & 800A breaker 100% rating.
J. REVISED feeder size for panel ‘RP-TR’.
K. REVISED ‘E31’ and ‘E47’ to be fed from distribution panel ‘LDP1A’ in lieu of ‘MRP1A’ and provided associated symbols and feeder/circuit breaker sizes.
L. ADDED keynote 1 to reference the Service Entrance Grounding Diagram detail on E-501 for the Service Entrance disconnect, along with an indication of the bonding jumper size on this sheet.
M. ADDED keynote 2 to clarify removal of existing ground-neutral service entrance bond at demolished branch.
N. ADDED keynote 3 to clarify (LSIG/ERMS) indication.
O. ADDED keynote 4 for the addition of externally mounted SPDs at panels ‘RP-TR’ and ‘MPP1A’ along with SPD symbols at both panelboards.
AD-1 Item 08 E-701
A. ADDED Panel schedule for Telecom room panel ‘RP-TR’ and a schedule for ‘MRP1B’.
B. REVISED branch panelboard schedules with updated loads and KAIC ratings.
C. ADDED circuit for 120VAC motorized dampers and removed two 208V equipment items to be fed from distribution panelboard and indicated on the One-Line Diagram.
D. ADDED 3 circuits for mechanical equipment.
E. REVISED Panel ‘MPP1A’ to be 54-space per UFC.
F. ADDED Circuit breaker and allotted space for surge protection device within panel schedules for ‘RP-TR’ and ‘MPP1A’.
AD-1 Item 09 E-801
A. ADDED load analyses for distribution panelboards.
B. UPDATED panel: circuit numbers, feeder sizes, and CB sizes on Mechanical Equipment
Connection Schedule.
C. ADDED note to refer to One-Line Diagram for additional information for ACC-1.
D. ADDED branch wiring and conduit sizes.
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