GSC Alumni Hall Chiller Replac_Addendum _1.pdf

GORDON STATE COLLEGE

ALUMNI HALL CHILLER REPLACEMENT

NBP #25072

ADDENDUM NO. 1

A1 - 1

This Addendum information shall be incorporated into the original

Contract Documents dated September 12, 2025.

Responses to Questions

1. Is 5 year parts and labor warranty required as specified?

1a. Yes

2. Is use of building Restrooms by contractor(s) acceptable vs contractor provided porta-potty?

2a. Yes

3. Can the crane be located on the grass adjacent to the chiller yard?

3a. Yes, contractor to protect sidewalks and repair any concrete/turf damage resulting from use of cranes or vehicles as part of project work.

4. Is a temporary chiller required?

4a. No

5. Are alternate chiller manufacturers acceptable?

5a. No, shall be Trane or JCI/York as scheduled and specified.

6. Is the use of independent JCI control subcontractors acceptable?

6a. Yes

7. Are the bidding contractors responsible for including the pricing for the controls portion of the new chiller, or will that be JCI’s responsibility?

7a. The contractors shall provide an all-inclusive bid including controls costs.

8. Please confirm if reseeding grass in the affected areas is to be included as part of site restoration upon completion?

8a. Yes, any damage to yard should be repaired in scope of project.

9. Where would temporary chiller be staged?

9a. No temporary chiller required due to building being unoccupied during duration of project.

10. What is the distance to the power and connection points for the hose to the temporary chiller?

10a. N/A

11. The drawings show POC in the 4” piping. Should it tie-in to the existing isolation valves?

11a. Yes, however, the isolation valves (butterfly) shall be replaced as part of this project as indicated.

GORDON STATE COLLEGE

ALUMNI HALL CHILLER REPLACEMENT

NBP #25072

ADDENDUM NO. 1

A1 - 2

12. What type of connection would be required for the temporary hoses (Flanged or Vic)?

12a. N/A

13. What is the circuit size or power available?

13a. The new chiller is 480V three phase with a 175A MOCP depending on the manufacturer.

14. Will a bid form and additional bidding documents be provided?

14a. Yes, attached.

15. How many copies of the actual quote with related information do you require and do you require one copy on a flash drive in a sealed envelope?

15a. One hard copy is all we usually receive.

16. Will there be any need for water treatment for new chiller or is it provided by separate

Water Treatment contractor?

16a. The existing water treatment company will take care of this and be paid by the owner directly, contractor to coordinate through Gordon State College.

17. Will any Test & Balance report be required for new chiller?

17a. Yes, per the specifications the chilled water system shall be balanced to new flow rates as indicated.

18. Is there a time frame for when you need new chiller and installation of new chiller?

18a. The goal is to be complete 6 months from notice to proceed.

19. Is an updated chiller spec section anticipated?

19a. Yes, attached.

END OF ADDENDUM

INSTRUCTIONS TO BIDDERS

BID REQUIREMENTS

1. Basis of Contract. Contract, if awarded, will be on a lump sum basis.

2. Examination of Site. In undertaking the work under this Contract, the Contractor acknowledges that he has visited the Project Site and has taken into consideration all observed conditions that might affect his work. NOTE: A Mandatory Pre Bid meeting is required on Thursday, December 18, 2025 at 10:00 am.

3. Surety and Insurance Companies. The Contract provides that the surety and insurance companies must be acceptable to the Owner. Only those sureties listed in the Department of Treasury’s Listing of Approved Sureties (Department Circular 570) are acceptable to the Owner. At the time of issuance, all insurance and bonds must be issued by a company licensed by the Georgia Insurance Commissioner to transact the business of insurance in the State of Georgia for the applicable line of insurance. Such company shall be an insurer (or, for qualified self-insurers or group self-insureds, a specific excess insurer providing statutory limits) with an A.M. Best Financial Strength Rating of "A-" or better and with an A.M. Best Financial Size Category of Class V or larger.

4. Bidding Documents. The Bidding Documents comprise the Construction Documents, the Invitation to Bid, the Instructions to Bidders, the Bid Form, and all Addenda, upon which the bidder submits a bid.

5. Addenda. All Addenda issued prior to bid date adjust, modify, or change the drawings and specifications as set forth in the Addenda. No Addenda will be issued within five days of the date set for opening bids without an extension of the bid date. All such Addenda are part of the contract.

6. Interpretations. No oral interpretation will be made to bidders as to the meaning of the drawings and specifications. Requests for interpretation of drawings and specifications must be made in writing to the Design Professional not later than six days prior to the date set for receipt of the bids. Failure on the part of the successful bidder to request clarification shall not relieve him as Contractor of the obligation to execute such work in accordance with a later interpretation by the Design Professional. All interpretations made to bidders will be issued in the form of Addenda to the plans and specifications and will be sent to all plan holders of record. Acknowledgement of receipt of such Addenda shall be listed in the Bid Form by the Contractor.

7. Alternates. Unless otherwise stipulated, all alternate bids are deductive. It is in the best interest of the public, and the intent of the Owner is, that the entire Project be constructed within the funds allocated in the Project budget. The acceptance of any deductive alternate will be utilized as a last resort to accomplish the Project without requiring a redesign and rebidding of the Project. Any alternate, or alternates, if taken, will be taken in numerical sequence to the extent necessary.

8. Sales Tax. Unless otherwise provided for in the Contract Documents, the Contractor shall include in his bid all sales taxes, consumer taxes, use taxes, and all other applicable taxes that are legally in effect at the time bids are received.

9. Trade Names, Specifications.

(a) No Restriction of Competition. When reference is made in the Contract Documents to trade names, brand names, or to the names of manufacturers, such references are made solely to indicate that products of that description may be furnished and are not intended to restrict competitive bidding. If it is desired to use products of trade or brand names or of manufacturers’ names that are different from those mentioned in the Bidding Documents, application for the approval of the use of such products must reach the hands of the Design Professional at least ten days prior to the date set for the opening of bids (see 9(b) below). This provision applies only to the party making a submittal prior to bid. If approved by Design Professional, the Design Professional will issue an addendum to all bidders. This provision does not prevent the Owner from initiating the addition of trade names, brand names, or names of manufacturers by addendum prior to bid.

(b) Request for Approval of Substitute Product. All requests for approval of substitution of a product that is not listed in the Bidding Documents must be made to the Design Professional in writing. For the Design Professional to prepare an addendum properly, an application for approval of a substitute product must be accompanied by a copy of the published recommendations of the manufacturer for the installation of the product together with a complete schedule of changes in the drawings and specifications, if any, that must be made in other work in order to permit the use and installation of the proposed product in accordance with the recommendations of the manufacturer of the product. The application to the Design Professional for approval of a proposed substitute product must be accompanied by a schedule setting forth in which respects the materials or equipment submitted for consideration differ from the materials or equipment designated in the Bidding Documents.

(c) Burden of Proof. The burden of proving acceptability of a proposed product rests on the party making the submission.

Therefore, the application for approval must be accompanied by technical data that the party requesting approval desires to submit in support of its application. The Design Professional will consider reports from reputable independent testing laboratories, verified experience records showing the reputation of the proposed product with previous users, evidence of reputation of the manufacturer for prompt delivery, evidence of reputation of the manufacturer for efficiency in servicing its products, or any other written information that is helpful in the circumstances. The degree of proof required for approval of a proposed product as acceptable for use in place of a named product or named products is that amount of proof necessary to convince a reasonable person beyond all doubt. To be approved, a proposed product must also meet or exceed all express requirements of the Contract Documents.

(d) Issuance of Addenda. If the Design Professional approves the submittal, an addendum will be issued to all prospective bidders indicating the approval of the additional product(s). Issuance of an addendum is a representation to all bidders that the Design Professional in the exercise of his professional discretion established that the product submitted for approval is acceptable and meets or exceeds all express requirements. If a submittal is initially rejected by the Design Professional, but determined to be acceptable to Design Professional after a conference with the Owner, an addendum covering the said submittal will be issued prior to the opening of bids. The successful bidder may furnish no products of any trade names, brand names, or manufacturers' names except those designated in the Contract Documents unless approvals have been published by addendum in accordance with the above procedure. Oral approvals of products are not valid.

(e) Conference with the Owner. Any party who alleges that rejection of a submittal is the result of bias, prejudice, caprice, or error on the part of the Design Professional may request a conference with a representative of the Owner, provided: that the request for said conference, submitted in writing, shall have reached the Owner at least six days prior to the date set for the opening of bids, time being of the essence.

10. Employment of Georgia Citizens and Use of Georgia Products. The work provided for in this Contract is to be performed in Georgia. It is the desire of the Owner that materials and equipment manufactured or produced in Georgia shall be used in the work and that Georgia citizens shall be employed in the work at wages consistent with those being paid in the general area in which the work is to be performed. This desire on the part of the Owner is not intended to restrict or limit competitive bidding or to increase the cost of the work; nor shall the fulfillment of this desire be asserted by the Contractor as an excuse for any noncompliance or omission to fulfill any obligation under the contract.

11. Trading with the State Statutes, Ethics. By submitting a bid, the bidder certifies that the provisions of law contained in O.C.G.A.

Sections 45-10-20 to 45-10-71, which prohibit officials and employees of the state from engaging in certain transactions with the state and state agencies, and the Governor’s Executive Orders governing ethics, have not and will not be violated in any respect in regard to this contract and further certifies that registration and all disclosures required thereby have been complied with.

12. Georgia Security and Immigration Compliance Act Requirements. No bid will be considered unless the Contractor certifies its compliance with the Immigration reform and Control Act of 1986 (IRCA), D.L. 99-603 and the Georgia Security Immigration Compliance Act OCGA 13-10-91 et seq. The Contractor shall execute the Georgia Security and Immigration Compliance Act Affidavit, as found in Section 7 of the Construction Contract. Contractor also agrees that it will execute any affidavits required by the rules and regulations issued by the Georgia Department of Audits and Accounts. If the Contractor is the successful bidder, contractor warrants that it will include a similar provision in all written agreements with any subcontractors engaged to perform services under the Contract.

13. Owner’s Policy Statement. The policy of the Owner is that minority business enterprises shall have the maximum opportunity to participate in the Owner’s purchasing process. The Owner encourages all minority business enterprises to compete for, win, and receive contracts for goods, services, and construction. In addition, Georgia law provides a state income tax credit available to any business that subcontracts with a minority-owned business. [See O.C.G.A. §48-7-38 and O.C.G.A. §50-5-130. See also Executive Order of the Governor No. A-11-0002-1992.] Any questions regarding statements contained hereunder should be directed to Gordon State College, Finance and Administration, 419 College Drive, Barnesville, GA 30204, 678.359.5555.

14. Bids.

(a) Bid Opening. Bids will be opened and announced as stated in the Invitation to Bid.

(b) Bid Submission. All bids must be submitted on the Bid Form as attached hereto and must be signed, notarized, and sealed by a notary public. All blanks for information entry in bid forms submitted to Owner should be filled. Blanks left unfilled constitute irregularities in the bid and place the bidder at risk of having the bid rejected unless the Owner rules the irregularity to be an informality or technicality that the director can waive, as is made clear in Paragraph 16 of these “Instructions to Bidders” and on the Bid Form. Numbers shall be written in English words and in Arabic numerals. The inclusion of any condition, alternate, qualification, limitation, or provision not called for shall render the bid nonresponsive and shall be sufficient cause for rejection of a bid.

(c) Bid Security. Bids must be accompanied by a Bid Bond made payable to the Owner in an amount not less than five percent of the Bid. Bid Bonds should be furnished on forms accepted as standard by the insurance industry, but shall be substantially in accordance with the Bid Security Form attached hereto.

(d) Delivery of Bids. Bids are to be addressed to the Owner, at the address and room number shown in the Invitation to Bid.

Bids must be enclosed in an opaque, sealed envelope; marked with the Bid Date, Bid Time, Bid Number, Name of Project; and identified with the words "Bid for Construction.” Bids must be placed in the hands of the Owner at the specified location by not later than the hour and date named in the Invitation to Bid. After that time, no bids may be received. It is the sole responsibility of the bidder to ensure the delivery of the bids to the required address.

(e) Alternates. A bid must be submitted for all alternates. Failure to so may render the bid nonresponsive and be sufficient cause for rejection of a bid.

(f) Withdrawal of Bids. Bids may be withdrawn by bidders prior to the time set for official opening. After time has been called, no bid may be withdrawn for a period of sixty days after the time and date of opening except as provided in O.C.G.A Section 13- 10-22 (appreciable error in calculation of bid). Negligence or error on the part of any bidder in preparing his bid confers no right of withdrawal or modification of his bid after time has been called except as provided by Georgia law.

15. Contract Award. Award shall be made on a lump sum basis to the lowest responsive and responsible bidder. The lowest bid will be the bid whose price, after incorporating all accepted alternates, is the lowest responsive bid that was received from a responsible bidder. No bid may be withdrawn for a period of sixty days after time has been called on the date of opening except in accordance with the provisions of law.

16. Owner’s Rights Concerning Award. The Owner reserves the right in its sole and complete discretion to waive technicalities and informalities. The Owner further reserves the right in its sole and complete discretion to reject all bids and any bid that is not responsive or that is over the budget, as amended. In judging whether the bidder is responsible, the Owner will consider, but is not limited to consideration of, the following:

(a) Whether the bidder or its principals are currently ineligible, debarred, suspended, or otherwise excluded from bidding or contracting by any state or federal agency, department, or authority;

(b) Whether the bidder or its principals have been terminated for cause or are currently in default on a public works contract;

(c) Whether the bidder can demonstrate sufficient cash flow to undertake the project as evidenced by a Current Ratio of 1.0 or higher;

(d) Whether the bidder can demonstrate a commitment to safety with regard to Workers' Compensation by having an Experience Modification Rate (EMR) over the past three years not having exceeded an average of 1.2; and

(e) Whether the bidder’s past work provides evidence of an ability to successfully complete public works projects within the established time, quality, or cost, or to comply with the bidder’s contract obligations.

17. Owner’s Right to Negotiate with the Lowest Bidder. In the event all responsive and responsible bids are in excess of the budget, the Owner, in its sole and absolute discretion and in addition to the rights set forth above, reserves the right either to

(i) supplement the budget with additional funds to permit award to the lowest responsive and responsible bid, or (ii) to negotiate with the lowest responsive and responsible bidder (after taking all deductive alternates) only for the purpose of making changes to the Project that will result in a cost to the Owner that is within the budget, as it may be amended.

18. Contract Forms. The contract forms, including the payment and performance bonds, shall be as set forth in the General Conditions, Section 7 – Forms.

[Remainder of Page Intentionally Left Blank]

BID FORM

To: Board of Regents of the University System of Georgia

Re: Gordon State College Alumni Hall Chiller Replacement

Bid Date: January 12, 2026

THE BID:

Bid. Having carefully examined the Specifications entitled Gordon State College Nursing & Allied Health Building Boiler Replacement, the Bidding Documents, and Drawings:

and Addendum No.(s): as well as the Site and conditions affecting the Work, bidder hereby proposes to furnish all services, labor, materials, and equipment called for by them for the entire Work, in accordance with the aforesaid documents, for the sum of:

Dollars ($ ) which sum is hereinafter called the Bid. The Bid shall be the amount of the Contract Sum executed between the Owner and the Contractor unless Alternates are accepted.

Alternates. We further propose that, should any of the following alternates be accepted and be incorporated in the Contract, the Bid will be altered in each case as follows:

No Alternates

Errors or Revisions. Prior to the bid opening date and hour, errors may be stricken or revisions may be made and corrections entered on this proposal form or on the bid envelope with sufficient clarity to be easily understood. All such annotations shall be binding on the bidder.

No Withdrawal. For and in consideration of the sum of $10.00, the receipt of which is hereby acknowledged, bidder and Owner agree that this bid may not be revoked or withdrawn after the time set for the opening of bids, except as provided in Georgia law, but is an irrevocable offer that shall remain open for acceptance for a period of sixty days following the time set for the opening of bids.

Execution of the Contract. If bidder is notified in writing by statutory mail of the acceptance of this bid within sixty days after time set for the opening of bids, bidder agrees to execute within ten days the Contract for the Work for the above stated Bid, as adjusted by the accepted Alternates, and at the same time to furnish and deliver to the Owner a Performance Bond and a Payment Bond on forms shown in Section 7 of the General Conditions of the Contract, both in an amount of equal to 100 percent of the Contract Sum.

SHEET

NUMBER

SHEET TITLE

SHEET

ISSUE

COVER SHEET 09.30.2025

M001 ABBREVIATIONS, LEGEND & SCHEDULE – HVAC 09.30.2025

M301

LARGE SCALE – MECHANICAL ROOM & CHILLER YARD – DEMOLITION &

NEW WORK – HVAC

09.30.2025

M401 FLOW DIAGRAM & DETAILS – HVAC 09.30.2025

E001 LEGEND, SCHEDULE, NOTES & DETAILS – ELECTRICAL 09.30.2025

E201

LARGE SCALE – MECHANICAL ROOM & CHILLER YARD – DEMOLITION &

NEW WORK – HVAC POWER

09.30.2025

Commencement and Completion of Work. Upon the Effective Date of the Contract, bidder agrees to commence all Preconstruction Activities. Upon issuance of a Proceed Order, bidder agrees to commence physical activities on the Site with adequate forces and equipment and to complete to Material Completion all work in 180 consecutive calendar days beginning the day after the date of the Proceed Order.

Bid Bond. Enclosed herewith is a Bid Bond (NO OTHER FORM ACCEPTABLE) in the amount of Dollars ($ ) (being not less than five percent of the Bid). Bidder agrees that the above stated amount is the proper measure of liquidated damages that the Owner will sustain by bidder’s failure to execute the Contract or to furnish the Performance and Payment Bonds should bidder’s bid be accepted.

Obligation of Bid Bond. If this bid is accepted within sixty days after the date set for the opening of bids and bidder fails to execute the Contract within ten days after Notice of Successful Bid, or if bidder fails to furnish both Performance and Payment Bonds, the obligation of the Bid Bond will remain in full force and effect and the money payable thereon shall be paid into the funds of the Owner as liquidated damages for such failure; otherwise, the obligations of the Bid Bond will be null and void.

Bidder Certification

Certification under Oath. Under oath I certify that I am a principal or other representative of the bidder, and that I am authorized by it to execute the foregoing bid on its behalf; and further, that I am a principal person of the bidder with management responsibility for the construction for the bidder, and as such I am personally knowledgeable of all its pertinent matters. I further certify that this bid is made without prior understanding, agreement, or connection with any corporation, firm, or person submitting a bid for the same services, materials, labor, supplies, or equipment and is in all respects fair and without collusion or fraud. Bidder and its principals understand that collusive bidding is a violation of state and federal law and can result in fines, prison sentences, and civil damage awards. Bidder agrees to abide by all conditions of this bid.

BY:

Authorized Signature (BLUE INK)

Printed Name Title

Sworn to and subscribed before me this Day of , 20 .

Notary Public

My commission expires:

(SEAL)

NOTE: THE NOTARY SEAL MUST BE APPLIED UNDER GEORGIA LAW, WHETHER OR NOT THE LAW OF THE STATE WHERE EXECUTED

PERMITS OTHERWISE.

STATEMENT OF BIDDER'S QUALIFICATIONS

STATEMENT OF BIDDER'S QUALIFICATIONS:

(To be subscribed and sworn to before a notary public.)

The bidder submits the following statement of bidder’s qualifications for consideration by the Owner.

Bidder’s Name:

LEGAL NAME OF BUSINESS

Bidder’s Address:

LEGAL BUSINESS ADDRESS (NO P.O. BOX, MUST BE PHYSICAL ADDRESS)

CITY STATE ZIP

MAILING ADDRESS IF DIFFERENT FROM ABOVE

Telephone Number:

AREA CODE NUMBER

POC Email:

The full names of persons and firms interested in the foregoing bid as principals are as follows:

(1) Circle One: President Partner Owner Other

(2)

Circle One: Vice President Secretary Partner Other

(3) Circle One: Vice President Secretary Partner Other

Note: If incorporated: The names of both the President and Corporate Secretary must be indicated. If a partnership, all partners must be indicated.

Social Security Number or FEIN:

Contractor’s Georgia License Type and Number:

Contractor’s Federal Employment Verification Certification: (Must include completed Contractor Affidavit as found in Section 7 of the Contract)

The Contractor is registered with, authorized to use, is using and will continue to use, the federal work authorization program throughout the term of the contract, and holds the following authorization:

User Identification Number:

Date of Authorization:

State Where Organized or Incorporated:

Plan of Organization: (Circle One) Proprietorship Corporation Partnership Joint Venture Other (Describe)

Years Engaged in Construction Contracting in Present Firm Organization: years.

Bidder Hereby Certifies that bidder:

a. Has never refused to sign a contract at the original bid on a public works contract except as allowed under Georgia law.

b. Has never been terminated for cause on a public works contract.

c. Has had no (criminal or felony) convictions, suspensions, or debarments of the bidder, its officers, or its principals for building code violations, bid rigging, or bribery in the last ten years.

STATEMENT OF BIDDER'S QUALIFICATIONS

d. Is not and its organization or its principals are not debarred, suspended, declared ineligible, or otherwise excluded by any Federal or State department or agency from doing business with the Federal Government or a State.

e. Has insurance required by the Contract Documents in place or has arranged to obtain it from an insurer authorized to do business in the State of Georgia.

f. Has sufficient bonding capacity to obtain a payment and performance bond from a surety meeting the requirements of the Contract Documents and authorized to do business in the State of Georgia.

g. Has sufficient cash flow to perform this Project.

Remarks or explanations of the above paragraphs a through g:

Bidder Certification Certification under Oath. Under oath I certify that I am a principal or other representative of the bidder, and that I am authorized by it to execute the foregoing Statement of Bidder’s Qualifications is true and correct, including any explanation above and submitted under oath.

BY:

Authorized Signature (BLUE INK PLEASE)

Printed Name Title

Sworn to and subscribed before me this Day of , 20 .

Notary Public

My commission expires:

(SEAL)

NOTE: THE NOTARY SEAL MUST BE APPLIED UNDER GEORGIA LAW, WHETHER OR NOT THE LAW OF THE STATE WHERE EXECUTED

PERMITS OTHERWISE.

Statistical Information. This request is made for statistical purposes only.

PLEASE INDICATE BELOW WHICH OF THE FOLLOWING DESCRIPTIONS APPLY TO YOUR COMPANY:

MINORITY BUSINESS ENTERPRISE (MBE) – One of the following statements describes this business: a) Owned by a member of a minority race; or b) a partnership of which a majority of interest is owned by one or more members of a minority race;

or c) a public corporation of which a majority of the common stock is owned by one or more members of a minority race. A member of a minority race is defined as a person who is a member of a race that comprises less than fifty percent of the total population of the State of Georgia. For recordkeeping purposes, this includes, but is not limited to, persons who are Black, Hispanic, Asian- Pacific American, Native American, or Asian-Indian American.

GEORGIA MINORITY BUSINESS ENTERPRISE (GMBE) – Business meets the definition of a minority-owned business and, in addition, meets the following criteria: a) was organized in the State of Georgia; or b) reports income from the business for Georgia Income Tax purposes; or c) minority stockholders report earnings for Georgia Minority Business Enterprise.

NEITHER DESCRIPTION APPLIES TO YOUR COMPANY.

BID SECURITY FORM

BID SECURITY FORM

KNOW ALL BY THESE PRESENT, That we, {Insert Contractor’s Legal Name and Address} as Principal, hereinafter called the Principal, and {Insert Legal Name and Address of Surety}, a corporation duly organized under the laws of the State of {Insert State of Corporate Organization}, as Surety, hereinafter called the Surety, are held and firmly bound unto:

OWNER:

Attention:

Phone Number:

Facsimile Number:

as Obligee, hereinafter called the Obligee in the sum of (Not less than five percent of the Bid) Dollars ($ ), for the payment of which sum well and truly to be made, the said Principal and the said Surety, bind ourselves, our heirs, executors, administrators, successors and assigns, jointly and severally, firmly by these presents.

WHEREAS, the Principal has submitted a Bid for ;

{Insert Owner’s Project Number and Project Description}

NOW, THEREFORE, if the Obligee shall accept the Bid of the Principal and (1) the Principal shall enter into a Contract with the Obligee in accordance with the terms of such Bid, and the Principal shall execute the Contract and give such bond or bonds as may be specified in the Bidding or Contract Documents with good and sufficient surety for the faithful performance of such Contract and for the prompt payment of labor and material furnished in the prosecution thereof; or (2) in the event of the failure of the Principal to enter such Contract and give such bond or bonds, and the Principal shall pay to the Obligee the difference not to exceed the difference hereof between the amount specified in said Bid and such larger amount for which the Obligee may in good faith contract with another party to perform the Work covered by said Bid; then this obligation shall be null and void, otherwise to remain in full force and effect.

Signed and sealed this Day of , 20

Name of Contractor:

Witness By: (Seal)

Principal

Title

Name of Surety:

Surety

Witness By: (Seal) (*)

(*) Attach Power of Attorney

NOTE TO CONTRACTOR: Use of Surety’s standard Bid Bond form is acceptable as long as it substantially complies with the following:

GORDON STATE COLLEGE REVISED DECEMBER 16, 2025

ALUMNI HALL CHILLER REPLACEMENT CONSTRUCTION DOCUMENTS

NBP#25072

SCROLL WATER CHILLERS 23 6423 - 1

SECTION 23 6423 - SCROLL WATER CHILLERS

PART 1 GENERAL

1.1 SECTION INCLUDES

A. Factory-assembled packaged chiller.

B. Charge of refrigerant and oil.

C. Controls and control connections.

D. Chilled water connections.

E. Electrical power connections.

F. Start-up and training.

1.2 RELATED REQUIREMENTS

A. Section 03 3000 - CAST-IN-PLACE CONCRETE: Concrete housekeeping pads.

B. Section 23 0510 - General HVAC Requirements - Warranty.

C. Section 23 0913 - INSTRUMENTATION AND CONTROL DEVICES FOR HVAC

D. Section 23 0923 - DIRECT-DIGITAL CONTROL SYSTEM FOR HVAC.

E. Section 23 0994 - HVAC SEQUENCE OF OPERATION.

F. Section 23 2113 - HYDRONIC PIPING.

G. Section 23 2114 - HYDRONIC SPECIALTIES.

H. Section 26 0583 - Wiring Connections.

1.3 REFERENCE STANDARDS

A. AHRI 550/590 (I-P) - Performance Rating of Water-Chilling and Heat Pump Water-Heating

Packages Using the Vapor Compression Cycle; 2015.

B. ASHRAE Std 15 - Safety Standard for Refrigeration Systems; 2013.

C. ASHRAE Std 90.1 I-P - Energy Standard for Buildings Except Low-Rise Residential Buildings;

2013, Including All Amendments and Errata.

D. ASME BPVC-VIII-1 - Boiler and Pressure Vessel Code, Section VIII, Division 1 - Rules for

Construction of Pressure Vessels; 2015.

E. NEMA EN 10250 - Enclosures for Electrical Equipment (1000 Volts Maximum); 2024.

F. UL 1995 - Heating and Cooling Equipment; Current Edition, Including All Revisions.

SCROLL WATER CHILLERS 23 6423 - 2

1.4 SUBMITTALS

A. Refer to Section 23 0510 - General Mechanical Requirements for submittal procedures.

B. Product Data: Provide rated capacities, weights, specialties and accessories, electrical requirements and wiring diagrams.

C. Shop Drawings: Indicate components, assembly, dimensions, weights and loadings, required clearances, and location and size of field connections. Indicate equipment, piping and connections, valves, strainers, and thermostatic valves required for complete system.

D. Manufacturer's Certificate: Certify that components furnished but not produced by manufacturer meet or exceed manufacturer's requirements.

E. Manufacturer's Performance Data: Indicate energy input versus cooling load output from 0 to

100 percent of full load at specified and minimum condenser water temperature for water-cooled chillers and at specified and minimum outdoor air temperature for air-cooled chillers.

F. Manufacturer's Instructions: Submit manufacturer's complete installation instructions.

G. Sustainable Design Documentation: Submit manufacturer's product data on refrigerant used, showing compliance with specified requirements.

H. Operation and Maintenance Data: Include start-up instructions, maintenance data, parts lists, controls, and accessories; include trouble-shooting guide.

I. Warranty: Submit manufacturer's warranty and ensure forms have been filled out in the

Owner's name and registered with manufacturer.

J. Certificate: Provide Manufacturer's Certificate complying with the requirements of the General

Conditions.

1.5 DELIVERY, STORAGE, AND HANDLING

A. Conform to manufacturer's written installation instructions for rigging, unloading, and transporting units.

B. Deliver units to the job site completely assembled and charged with refrigerant and oil by manufacturer.

1.6 WARRANTY

A. See Section 01 7800 - Closeout Submittals, for additional warranty requirements.

B. Manufacturer's Warranty: Provide minimum five year warranty to include coverage for materials and labor for complete assembly.

SCROLL WATER CHILLERS 23 6423 - 3

PART 2 PRODUCTS

2.1 MANUFACTURERS

A. Carrier, a part of UTC Building and Industrial Systems, a unit of United Technologies Corp;

______: www.carrier.com.

B. Trane, a brand of Ingersoll Rand; ______: www.trane.com.

C. York International Corporation/Johnson Controls, Inc; ______: www.york.com.

D. Substitutions: See Section 01 6000 - Product Requirements.

1. The chilled water system has been designed based on specific capacities and characteristics of equipment specified in this section and other sections.

2. When substitution of a different manufacturer or model number is desired, submit sufficient information to demonstrate to the Design Professional that the substitute will have the same or better performance as that specified AND that the related equipment in the system will perform acceptably with the substitute.

2.2 CHILLERS

A. Chillers: Factory assemble and test chiller consisting of compressor(s), compressor motor(s), evaporator, condenser, enclosure, refrigeration circuits(s) and specialties, interconnecting piping, across the line starters, and microprocessor-based controls.

1. Rating: AHRI 550/590 (I-P).

2. Safety: UL 1995 and ASHRAE Std 15.

3. Construction & Testing: ASME BPVC-VIII-1 as applicable for construction type.

4. Products Requiring Electrical Connection: Listed and classified by Underwriters

Laboratories Inc. or testing firm acceptable to the Authority Having Jurisdiction as suitable for the purpose specified and indicated.

5. Energy Efficiency:

a. In accordance with the requirements of the Georgia State Energy Code.

6. Enclosures:

a. Frame:

1) Heavy-gage steel.

2) Factory apply hot-dipped galvanized or air-dried paint finish.

b. Steel Chiller Cabinets:

1) Factory apply baked on enamel or baked on powder paint finish.

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c. Electrical Equipment: NEMA EN 10250 or UL 1995 as applicable.

2.3 COMPRESSORS AND EVAPORATOR

A. Compressors: Hermetic scroll type.

1. Unit: Fully hermetic type with multiple, direct drive compressors with discharge and suction service valves.

2. Vibration Control: Factory installed internal isolators or field installed external isolators.

3. Oil Lubrication System: Initial oil charge, oil sump, heater, oil level, and sight glass.

4. Capacity Reduction System: Compressor staging with control down to 12 percent of full load without the activation of hot gas by-bass.

5. Motor: 3600 or 3500 rpm, suction gas-cooled, with thermal or current overload protection.

B. Evaporator: Provide shell and tube or brazed plate type.

1. Shell and tube type.

a. Shell, removable heads and tube support sheets constructed of carbon steel.

b. Tubes: Mechanically expand and fasten, seamless, externally or internally enhanced, copper tubes into intermediate tube support sheets along the length of shell to avoid contact and relative motion between tubes.

c. Refrigerant Working-Side Pressure Rating: 400 psig minimum.

d. Water Working-Side Pressure Rating: 150 psig minimum.

e. Provide with grooved connections.

f. Insulation for all cold surfaces.

1) Insulation is factory installed on shell and suction piping.

2) 0.75 inches minimum thick, closed cell, expanded polyvinyl chloride, polyurethane, or vinyl nitrate polymer insulation with a maximum k value of 0.28.

g. Provide factory installed vents and water drain connections on evaporator or piping.

h. Provide factory installed fittings for temperature control sensors on evaporator or piping.

i. Freeze Protection for Outdoor Locations: Provide thermostatically controlled electric heater to protect from freezing at ambient temperatures down to minus 20 degrees F.

2. Brazed plate type.

a. Plate Material: 316 stainless steel.

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b. Refrigerant Working-Side Pressure Rating: 430 psig minimum.

c. Water Working-Side Pressure Rating: 150 psig minimum.

d. Provide with grooved connections.

e. Provide a wye strainer for installation on the chilled water return at the connection to the chiller, 20 mesh or otherwise per the manufacturer's recommendations.

f. Insulation for all cold surfaces.

1) Insulation is factory installed on evaporator, connections, and suction piping.

2) 0.75 inches minimum thick, closed cell, expanded polyvinyl chloride, polyurethane, or Armaflex II insulation with a maximum k value of 0.28.

g. Provide factory installed vents and water drain connections on evaporator or piping.

h. Provide factory installed fittings for temperature control sensors on evaporator or piping.

i. Freeze Protection for Outdoor Locations: Provide thermostatically controlled electric heater to protect from freezing at ambient temperatures down to minus 20 degrees F.

2.4 AIR-COOLED CONDENSER AND FANS

A. Provide finned-tube, brazed one-piece, or flat tube-plate-manifold type.

1. Finned-tube type.

a. Mechanically bond aluminum fins to copper tubing and protect with corrosion resistant materials or coatings.

b. Clean, dehydrate and test.

c. Leak Test: 650 psig minimum.

2. Brazed one-piece type.

a. Construct of same material to avoid galvanic corrosion.

b. Braze coils and headers as one assembly.

c. Clean, dehydrate and test.

d. Leak Test: 650 psig minimum.

3. Flat tube-plate-manifold type.

a. Construct all components of same aluminum alloy to avoid galvanic corrosion.

b. Braze manifolds, flat tubes and fin-plates together to form single coil assembly.

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c. Clean, dehydrate and test.

d. Leak Test: 656 psig minimum.

B. Coil Guards: Provide corrosion proof, louvered panels, heavy gage wire panels, or grilles, factory installed. Provide coil protection for shipping by enclosing entire condenser coil with heavy plastic to prevent coil damage during shipping or rigging.

C. Fans and Motors:

1. Fans: Dynamically balance propeller type fans of reinforced polymer or glass fiber reinforced composite corrosion resistant construction equipped with sealed, permanently lubricated ball bearings.

2. Discharge Fan Guards: Corrosion resistant, heavy gage, steel wire.

3. Discharge Direction: Vertical.

4. Motors: Direct drive, totally enclosed for outdoor use with current overload protection.

a. Provide variable speed on first fan of each circuit (minimum).

2.5 REFRIGERATION CIRCUITS

A. Provide multiple independent refrigeration circuit(s) with multiple compressor(s) per circuit for units over 50 tons capacity.

B. Provide liquid line shut-off valve, filter-drier, expansion valve, and refrigerant relief device for each independent circuit.

2.6 ENCLOSURES

A. House components in welded steel frame with galvanized steel panels with weather resistant, baked enamel finish.

B. Protect components underneath unit with tamperproof welded wire mesh guards.

C. Protect the condenser coil sections with louvered panel enclosures.

2.7 UNIT MOUNTING

A. Mount chiller assembly on elastomeric pads evenly distributed under the chiller frame load points.

B. Neoprene Pad Isolators:

1. Rubber or neoprene waffle pads.

a. Hardness: 30 durometer.

b. Thickness: Minimum 1/2 inch each pad.

c. Maximum Loading: 50 psi.

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d. Rib Height: Maximum 0.7 times width.

2. Configuration: 1/2 inch thick waffle pads bonded each side of 1/4 inch thick steel plate.

2.8 INTEGRATED MICROPROCESSOR BASED DDC CONTROLS PACKAGE

A. Pre-wire, assemble, factory mount, and test operating and safety control system consisting of a digital display or gages, on-auto-off switch, motor starters, disconnect switches, power and control wiring. Provide controls, monitoring, programmable set-points, alarms, and BAS as defined below:

1. Automatic Adjustable Operating Controls:

a. Temperature of chilled water leaving chiller.

b. Chiller system capacity control based on set-points and system load.

c. Compressor short-cycling prevention.

d. Lead/lag for multiple compressors.

e. Automatic reset on power source failure.

f. Load limiting.

g. Sequencing of condenser fans.

2. Normal Operation Monitoring and Open Cover-less Displays:

a. Hours of operation.

b. Suction and discharge refrigerant pressures.

c. Automatic diagnostics.

d. Number of starts.

e. On/off compressor status.

f. Entering and leaving chilled water temperatures.

g. Status of operation.

h. Weekly purge cycle totalization if applicable.

i. Oil pressure.

3. Set-Points:

a. Leaving chilled water temperature.

b. Date/time.

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4. Automatic Chiller Shut-Down Safety Controls and Alarm:

a. Automatic Reset:

1) Chilled water flow interlock.

2) Voltage protection (over/under).

3) Phase reversal protection.

b. Manual Reset:

1) Evaporator low pressure.

2) High motor winding temperature.

3) Low chilled water temperature.

4) Low chilled water flow.

5) High condenser refrigerant discharge pressure.

6) Motor current overload and phase loss.

7) Low oil flow.

5. Building Automation System (BAS) Communications via Shielded Cable:

a. Minimum Data Transmission to BAS:

1) All system operating conditions.

2) Capacity control information.

3) Safety shutdown conditions.

b. Minimum Operating Commands from BAS:

1) Remote unit start/stop.

2) Remote chilled water reset.

2.9 BUILDING AUTOMATION SYSTEM (BAS) INTERFACE:

A. The manufacturer shall provide the hardware and software necessary to permit the monitoring and control of the chiller from the existing JCI Building Automation System. Provide termination for remote signaling of system status and alarms. Provide BACnet open protocol for interface with the BAS.

B. The information communicated between the BAS and the factory mounted unit controllers shall include the reading and writing of data to allow unit monitoring, control and alarm notification as specified in the unit sequence of operation and the unit points list.

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C. Points for BAS Control and Monitoring:

1. Interface shall include refrigerant temperatures and pressures, chilled water entering and leaving temperatures, remote reset control, electrical information including volts and amps in each phase and all specific safety and cycling shutdowns displayed at the chiller control panel.

2. Relay output energized upon detecting a fault requiring manual reset.

3. Relay output energized whenever unit is operating in a limit mode for an extended period of time.

4. Analog input to control leaving chilled water temperature set-point based upon a 4-20ma or 0-10 VDC signal from the building automation system.

5. Programmable soft during pull-down period via ramped current limit or fully adjustable, temperature pull-down rate.

6. Leaving chilled water reset temperature.

2.10 POWER WIRING

A. Provide factory wired units with a single point of electrical connection and grounding lug.

B. Provide across-the-line starter, non-recycling compressor overload, starter relay for each compressor. Provide manual reset current overload protection.

C. Minimum short circuit rating: 42,000 amperes rms symmetrical.

D. Provide starter relay for each condenser fan and motor with built-in overload protection.

E. Power block terminals shall be provided for different wire size connections. Wiring shall be numbered and color coded for ease of trouble-shooting.

F. Provide a surge capacitor and lightning arrestor in starter cabinet for protection from power surges due to lightning and switching transients.

G. Ground shall be #6 A.W.G. Provide separate driven ground for ground mounted and connect to building steel for roof mounted units.

H. Provide motor protector.

I. Provide separate power connection for power for evaporator heat tape.

J. Provide unit mounted GFCI WP duplex for maintenance.

K. Control Power Transformers: 120 volt secondary. 45 VA minimum. Provide fused primary, secondary, and bond unfused leg of secondary to enclosure.

L. Exposed compressor and fan motor power wiring shall be routed in liquid tight conduit.

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PART 3 EXECUTION

3.1 INSTALLATION

A. Install in accordance with manufacturer's instructions.

B. Align chiller package on steel or concrete foundations.

C. Install units on vibration isolators.

D. Connect to electrical service.

E. Connect to chilled water piping. Install strainer supplied with chiller on return to chiller for braized plate heat exchangers.

F. Water Piping:

1. Piping shall be aligned and supported to eliminate all stresses on flanges and nozzles before tightening bolts.

2. Arrange piping for easy dismantling to permit tube cleaning.

3. Ball vent and ball drain valves with hose end connection shall be installed.

G. Tubing and Wiring: Installed in ducts or conduit running horizontally or vertically. Vertical runs shall be bent to conform to machine surfaces. Free hanging capillaries and wires will not be accepted

H. Connect to primary electrical service. Provide a separate 120 volt circuit if required by the chiller manufacturer for the evaporator freeze protection heaters.

I. Arrange piping for easy dismantling to permit tube cleaning and removal.

3.2 STARTING EQUIPMENT

A. Start no equipment or systems until all prefunctional checklists have been completed and approved by the manufacturer's representative.

B. Provide services of factory trained representative for minimum one day to leak test, refrigerant pressure test, start-up, commission the machine and calibrate controls. The technician shall observe a minimum of four (4) hours of operation for the chiller and shall submit a log of all chiller operating conditions during this period.

C. Supply initial charge of refrigerant and oil.

D. Provide start-up certificate in accordance with the General Conditions.

3.3 CLOSEOUT ACTIVITIES

A. See Section 01 7800 - Closeout Submittals, for closeout submittals.

B. See Section 01 7900 - Demonstration and Training, for additional requirements.

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C. Demonstration: Demonstrate operation of system to the Owner's personnel.

1. Use operation and maintenance data as reference during demonstration.

2. Briefly describe function, operation, and maintenance of each component.

D. Training: Train the Owner's personnel on operation and maintenance of system.

1. Use operation and maintenance manual as training reference, supplemented with additional training materials as required.

2. Provide minimum of two hours of training.

3. Instructor: Manufacturer's training personnel.

4. Location: At project site.

3.4 SCHEDULES

A. Refer to schedule on Drawings.

END OF SECTION