ILEAS AHU Replacement Addendum No. 3

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Gti~. ENG I NEERS AND ASSOC IATES , I NC. / Mechanical & Electrical Consulting Engineers Bidding and Contract Requirements Addendum No. 3 Date: January 26, 2026 To: Contractors Subject: Addendum No. 3 to the Bidding Documents for: ILEAS Air Handling Unity Replacement (2026-001) County of Champaign Urbana, Illinois Addendum No. 3 becomes a part of the bidding and contract documents and modifies the original bidding documents, dated January 6, 2026. Acknowledge receipt of Addendum No. 3 in the space provided on Bid Form. FAILURE TO DO SO MAY SUBJECT BIDDER TO DISQUALIFICATION. Specifications 1. Section 23 7313.16 - Modular Indoor Air Handling Units a. 2. Addendum No. 1 - Paragraph 2.a. - Add IEC to list of Acceptable Manufacturers. Section 23 7313.19 - Multi-Zone Indoor AHU’s a. Addendum No. 1 - Paragraph 3.a. - Add IEC to List of Acceptable Manufacturers. Drawings 1. 2. Sheet H101 - Large Scale Heating - Basement Mechanical Room a. REVISED orientation of AHU-2 to run N-S. b. REVISED piping to AHU-2 per the re-orientation. Sheet VD101 - Large Scale Ventilation Demolition - Basement Mechanical Room a. 3. 4. Sheet VD101 - Large Scale Ventilation Demolition - Basement Mechanical Room Sheet V101 - Large Scale Ventilation - Basement Mechanical Room a. REVISED orientation of AHU-2 to run N-S. b. REVISED ductwork to AHU-2 per the re-orientation. Sheet HV200 - Schedules and Details - Mechanical a. REVISED AHU schedule notes to better coordinate housekeeping pad instructions with existing obstructions and to better serve the re-oriented ILEAS AHU Replacement 1 GHR - 01/26 Addendum No. 3 Bids are due January 28, 2026 before 2:00 p.m. local prevailing time at the Putman Meeting Room, Bennett Administrative Center, 102 East Main Street No. 500, Urbana, Illinois 61801 Respectfully submitted, GHR Engineers and Associates, Inc. Dylan M. Royer Project Manager Phone: 217-356-0536 ILEAS AHU Replacement Addendum No. 3.wpd ILEAS AHU Replacement 2 GHR - 01/26 Addendum No. 3 E5 KEYED NOTES - MECHANICAL 01 PROVIDE AND INSTALL NEW MULTI-ZONE AIR HANDLING UNIT IN LOCATION SHOWN. FIELD VERIFY FINAL PIPE ROUTING. SEE DETAILS 2/HV200 AND 7/HV200 FOR COIL VALVING AND PIPING. SEE TC SHEETS FOR NEW DDC CONTROL WORK. GENERAL NOTES - MECHANICAL 02 PROVIDE AND INSTALL NEW MODULAR AIR HANDLING UNIT IN LOCATION SHOWN. FIELD VERIFY FINAL PIPE ROUTING. SEE DETAILS 2/HV200 AND 7/HV200 FOR COIL VALVING AND PIPING.