BL063-26, Replacement of HVAC Systems at the F. Wayne Hill Water Resources Center Operations Buildin

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March 24, 2026
INVITATION TO BID
BL063-26
The Gwinnett County Board of Commissioners is soliciting competitive sealed bids from qualified contractors for the
Replacement of HVAC Systems at the F. Wayne Hill Water Resources Center Operations Building for the Department
o f Water Resources.
Bids should be typed or submitted in ink and returned in a sealed container marked on the outside with the BL# and
Company Name. Bids will be received until 2:50 P.M. local time May 15, 2026, at the Gwinnett County Financial
Services - Purchasing Division - 2nd Floor, 75 Langley Drive, Lawrenceville, Georgia 30046. Any bid received after this
date and time will not be accepted. Bids will be publicly opened and read at 3:00 P.M.
The bid opening will be virtual ONLY. To access the bid opening virtually, visit the following link:
https://gwinnettgov.webex.com/gwinnettgov/j.php?MTID=mdf33266278ea1250c94b5b0914c276d7. Apparent bid
results will be available the following business day on the website www.GwinnettCounty.com.
A pre-bid conference is scheduled for 10:00 A.M. on April 23, 2026, at the Gwinnett County F. Wayne Hill Water
Resources Center Conference Room located at 1500 One Water Way, Buford, GA 30519. All contractors are urged to
attend. Questions regarding bids should be directed to Anna West, Purchasing Associate II, at
Anna.West@GwinnettCounty.com or by calling 770-822-7862, no later than April 28, 2026. Bids are legal and binding
upon the vendor when submitted. All bids should be submitted in duplicate.
All suppliers must submit with bid, a bid bond, certified check or cashier's check in the amount of five percent (5%) of
the total bid. Failure to submit a bid bond with the proper rating will result in the bid being deemed non-
responsive. Successful supplier will be required to meet insurance requirements, submit a one hundred percent
(100%) performance bond and a one hundred percent (100%) payment bond. Insurance and Bonding Company should
be licensed to do business by the Georgia Secretary of State, authorized to do business in Georgia by The Georgia
Insurance Department, listed in the Department of Treasury's Publication of Companies holding Certificates of
Authority as Acceptable Surety on Federal Bonds and as acceptable reinsuring companies. The bid bond, payment
bond, and performance bond must have an A.M. Best rating of A-7 or higher.
Gwinnett County does not discriminate on the basis of disability in the admission or access to its programs or
activities. Any requests for reasonable accommodations required by individuals to fully participate in any open
meeting, program or activity of Gwinnett County Government should be directed to the ADA Coordinator at the
Gwinnett County Justice and Administration Center, 770-822-8165.
The written bid documents supersede any verbal or written prior communications between the parties.
Award will be made to the contractor submitting the lowest responsive and responsible bid. Gwinnett County reserves
the right to reject any or all bids to waive technicalities and to make an award deemed in its best interest. Bids may
be split or awarded in entirety. Gwinnett County reserves the option to negotiate terms, conditions and pricing with
the lowest responsive, responsible vendor(s) at its discretion.
Award notification will be posted after award on the County website, www.gwinnettcounty.com and companies
submitting a bid will be notified via email.
We look forward to your bid and appreciate your interest in Gwinnett County.
Anna West
Purchasing Associate II
The following pages should be returned in duplicate as your bid:
Bid Schedule, Pages 5-8
Equipment Information, Page 9
References, Page 10
Code of Ethics, Page 11
Contractor Affidavit and Agreement, Page 12
Bid Bond, Pages 13-14

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SCOPE OF WORK:
F. Wayne Hill Water Resource Center (FWHWRC) is experiencing issues with the Heating
Ventilation Air Conditioning (HVAC) equipment that services the Operations Building. The building
and HVAC systems were installed in 2002. Two of the Air Handling Units (AHU) are located in a
mechanical room on the ground level and are accessible through double doors. The third unit is
located on a mezzanine floor space above the laboratory and is only accessible using a vertical
fixed mounted ladder through an approximate 30" by 30" opening in the mezzanine floor. All units
are supplied with chilled water from a chilled water system located outside the building.
An assessment of the system performance and operation of the equipment was completed in
April 2024. The assessment highlighted the underperformance of three AHUs and the fan
powered terminal units. Concerns related to the chilled water capacity and pump control were
also noted. Further, the assessment revealed control and communication issues with the existing
Carrier iVue DDC automated control system. It was also highlighted that most of the equipment
has reached the end of its useful life.
In order to restore the HVAC system to provide the required conditioned space within the
Operations Building, Gwinnet County require replacement of the existing Control System, three
HVAC/AHU units, all the Variable Air Volume (VAV) Terminal Units and the two chilled water
pumps. The two accessible AHUs are to be removed and replaced in their current locations. The
third AHU is to be demolished into small pieces for removal through a manway access, and the
replacement unit relocated to the Warehouse to provide better access for future repair and
maintenance. The two chilled water pumps and their appurtenances are to be replaced.
Bids are requested for the supply and complete installation of replacement equipment and all
modifications to the existing equipment pads, ducting, chilled water pipes, drains, electrical and
control connections required for the complete operation, control and monitoring of the systems
within the Operations Building. The location of FWHWRC is 1500 One Water Way, Buford, GA
30519. The location of the Operations Building is shown in Figure 1.

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A critical component of this project is the Operations Building will be in use and occupied 24/7
during construction and work will need to be carried out with no interruptions to plant operations.
The Contractor will be responsible for setting up temporary cooling units to maintain the building
temperatures during the work.
Bids are requested for the following services:
1. Supply of all information requested on this bid.
2. Site visit to confirm any measurements prior to preparation of the shop drawings.
3. Assessment of the existing electrical connections to ensure they are rated for replacement
equipment.
4. Submission of specified submittals for approval prior to ordering equipment and materials.
5. Procure, deliver and install the following replacement equipment:
o Chilled Water Pumps and Trim (pressure gauges and triple duty valves)
o Air Handling Units
o Automated Controls
o VAVs
o Ducts and piping
o Electrical equipment
o Dampers
6. Modifications to existing ducts, pipework electrical systems and control systems and
structures and installation of the replacement equipment and all ancillaries.
7. Provide a manufacturing and delivery schedule and provide monthly progress updates.
8. Coordination and delivery to FWHWRC, 1500 One Water Way, Buford, GA, 30519.
9. Provision of temporary cooling.
10. Start up assistance and Owner training.
11. Provision of Operating and Maintenance manuals.
The scope of work is detailed in Attachment 1. Project Drawings and Specifications are provided
in Attachments 2 and 3 respectively. Record drawings are provided in Attachment 4.
The following information sheets should be submitted with the bid.
1. Make, model, and weight of each component.
2. Manufacturer's catalog information, descriptive literature, specifications, and materials of
construction.
3. Complete description of equipment and other ancillary items.
4. Plan and section views of equipment and dimensional tolerances required for installation
and maintenance.
5. A complete listing of materials.
6. Drawings of AHU and VAV.
7. Manufacturer Certificate of Compliance with materials specifications shall be submitted
prior to shipment of the equipment. The certificate shall certify that materials,
manufacturer, and final product conforms to or exceeds specified requirements and intent
for which the product will be used. Submit supporting reference data, affidavits, and
certificates as appropriate. The certificate may reflect recent or previous test results on
material or product, acceptable to the Engineer.
8. Table 1 Preliminary Equipment Information Summary

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PRELIMINARY CONSTRUCTION SCHEDULE
The Operations Building will be occupied during the project as essential activities are required to
be maintained to keep the facility operational. Disruption to normal plant operation and
occupation of the different space is to be minimized. Coordination with Owner's Plant staff is
required to establish an overall work sequencing and schedule for each element of the work. A
preliminary work sequence is proposed below for information purposes and to enable contractors
to consider the most efficient work sequence and schedule that will be acceptable to operations
staff and minimize the need for temporary cooling.
1. Replacement of the chilled water pumps to maintain supply to AHU units.
2. Replacement of one HVAC system (serviced by a single AHU and all associated VAVs,
ducts, pipes, electrical etc.) at a time. One system can be taken out of services and replaced
whilst the two other systems remain in operation: Once the system has been replaced and
is returned to operation, the next system can be taken out of service. This will allow partial
cooling during the work.

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FAILURE TO RETURN THIS PAGE AS PART OF YOUR BID DOCUMENT MAY RESULT IN REJECTION
BID SCHEDULE
ITEM MANUFACTURER
DESCRIPTION QTY Delivery A.R.O UNIT PRICE TOTAL COST
# & NO.
PART 1 - GENERAL
Post award onsite visit to obtain information to
1.1 confirm installation, electrical and control 1 LS $ $
requirements and modifications.
Submittal preparation, shop drawings and
1.2 1 LS $ $
submissions.
16
1.3 Provide Temporary Cooling Systems $ $
Weeks
Provide two hard copies and one electronic
1.4 copy of the operating and maintenance 1 LS $ $
manuals for all equipment items.
Onsite training to Owner staff on system
operation and
maintenance including all travel,
1.5 2 DAYS $ $
accommodation and
ancillary expenses etc. (two non-consecutive
visits of 8 hours each day).
Cost for post-handover assistance of 1 day
1.6 1 DAY $ $
visit if requested by Owner.
PART 2 - 61-AIR HANDLING UNIT-1
Disconnect, demolish, remove and dispose of
2.1 existing unit, including all ancillaries not 1 LS $ $
required for replacement unit.
2.2 Procure and deliver unit. 1 LS $ $
Install unit including all modifications to
2.3 equipment pads and connections to existing 1 LS $ $
ducting and piping.
2.4 Electrical and control modifications. 1 LS $ $
2.5 Testing, start up and balancing. 1 LS $ $
Company Name:

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FAILURE TO RETURN THIS PAGE AS PART OF YOUR BID DOCUMENT MAY RESULT IN REJECTION
BID SCHEDULE
ITEM MANUFACTURER DELIVERY
DESCRIPTION QTY UNIT PRICE TOTAL COST
# & NO. A.R.O
PART 3 - 61-AIR HANDLING UNIT-3
Disconnect, demolish, remove and dispose of
3.1 existing unit, including all ancillaries not 1 LS $ $
required for replacement unit.
3.2 Procure and deliver unit. 1 LS $ $
Install unit including all modifications to
3.3 equipment pads and connections to existing 1 LS $ $
ducting and piping.
3.4 Electrical and control modifications. 1 LS $ $
3.5 Testing, start up and balancing. 1 LS $ $
PART 4 - 61-AIR HANDLING UNIT-4
Disconnect, demolish, remove and dispose of
4.1 existing unit, including all ancillaries not 1 LS $ $
required for replacement unit.
4.2 Procure and deliver unit. 1 LS $ $
Install unit in new location including new
4.3 1 LS $ $
equipment pads.
Procure and install new ducts including all
4.4 ancillaries and connect to existing ducts in 1 LS $ $
mezzanine space.
Provide new electrical and control equipment,
4.5 1 LS $ $
conduits and conductors.
4.6 Provide new piping for drains. 1 LS $ $
4.7 Testing, start up and balancing. 1 LS $ $
Company Name:

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FAILURE TO RETURN THIS PAGE AS PART OF YOUR BID DOCUMENT MAY RESULT IN REJECTION
BID SCHEDULE
ITEM MANUFACTURER DELIVERY
DESCRIPTION QTY UNIT PRICE TOTAL COST
# & NO. A.R.O
PART 5 - VARIABLE AIR VOLUME TERMINAL UNITS
Disconnect, demolish, remove and dispose of
5.1 existing units, including all ancillaries not 1 LS $ $
required for replacement units.
5.2 Procure and deliver units. 1 LS $ $
Install units including all modifications to
5.3 1 LS $ $
existing ducting.
5.4 Electrical and control modifications. 1 LS $ $
5.5 Testing, start up and balancing. 1 LS $ $
PART 6 - FANS
Disconnect, demolish, remove and dispose of
6.1 existing units, including all ancillaries not 1 LS $ $
required for replacement units.
6.2 Procure and deliver units. 1 LS $ $
6.3 Install units including (61-F1 through 12) 1LS $ $
PART 7 - CHILLED WATER
Disconnect, demolish, remove and dispose of
7.1 existing pumps, including all ancillaries not 1 LS $ $
required for replacement pumps.
Procure and deliver replacement pumps and
7.2 1 LS $ $
trim.
Install pumps including all modifications for
7.3 1 LS $ $
anchors and connections to existing piping.
Company Name:

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FAILURE TO RETURN THIS PAGE AS PART OF YOUR BID DOCUMENT MAY RESULT IN REJECTION
BID SCHEDULE
ITEM MANUFACTURER DELIVERY
DESCRIPTION QTY UNIT PRICE TOTAL COST
# & NO. A.R.O
Cut into existing chilled water supply pipes
and supply and install new chilled water
7.4 1 LS $ $
pipework to 61-AHU-4, including insulation and
coating.
Modifications to existing pipework at
7.5 relocated unit to maintain chilled water 1 LS $ $
recirculation system.
7.6 Electrical and control modifications. 1 LS $ $
Testing and start-up of chilled water pumps
7.7 1 LS $ $
and chilled water system.
PART 8 - CONTROLS INTEGRATION
Integration of new open protocol Niagra based
8.1 1 LS $ $
DDC control system
TOTAL $
Notes:
1. The unit price MUST include ALL charges, including but not limited to delivery, installation, and field start-up services per specifications.
2. If submitting an approved equivalent, please submit product cut sheets or information documents as requested.
3. Reminder to include the Manufacturer/Product Number.
The undersigned acknowledges receipt of the following addenda, listed by number and date
appearing on each:
Addendum No. Date Addendum No. Date
______________ ______________ ______________ ______________
______________ ______________ ______________ ______________
Certification Of Non-Collusion In Bid Preparation
Signature Date
Company Name:

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FAILURE TO RETURN THIS PAGE AS PART OF YOUR BID DOCUMENT MAY RESULT IN REJECTION
BID SCHEDULE
In compliance with the attached specifications and O.C.G.A. 36-91-50, the undersigned acknowledges all requirements outlined in the "Instructions
to Vendors" and all documents referred to therein, if this bid is accepted by the Board of Commissioners within sixty (60) days of the date of bid
opening, to furnish any or all of the items upon which prices are quoted, at the price set opposite each item, delivered to the designated point(s)
within the time specified in the fee schedule. By submission of this bid, I understand that Gwinnett County uses Electronic Payments for remittance
of goods and services. Vendors should select their preferred method of electronic payment upon notice of award. For more information on
electronic payments, please refer to the Electronic Payment information in the Instructions to Vendors.
Legal Business Name
Address
Does your company currently have a location within Gwinnett County? Yes No
Representative Signature
Printed Name
Telephone Number E-mail address
Contact Person (if someone other than the authorized representative listed above)
Telephone Number E-mail address

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FAILURE TO RETURN THIS PAGE AS PART OF YOUR BID DOCUMENT MAY RESULT IN
REJECTION
EQUIPMENT INFORMATION
The table provided below should be completed by the contractor and submitted with the bid.
Table 1: Preliminary Equipment Information Summary
Description Manufacturer Product Model/Information
61-AHU-1
61-AHU-3
61-AHU-4
VAV-1
VAV-2
VAV-3
VAV-4
VAV-5
VAV-6
VAV-7
VAV-8
VAV-9
VAV-10
FAN-1
FAN-2
FAN-3
FAN-4
FAN-5
FAN-6
FAN-7
FAN-8
FAN-9
FAN-10
Dampers
Control System
Chilled water pumps, pressure
gauges and triple duty valves
Electrical Breakers
Electrical Disconnect Switches
Electrical Conductors
61-HCP-1,2,3
Duct heater 61-DEH-1
Differential pressure transmitter
and any control appurtenances
Other
Company Name: