PROJECT MANUAL

CHILLER REPLACEMENT

AT VARIOUS SCHOOLS

APRIL 15, 2013

Aldine Independent School DistrictM.B. SONNY DONALDSON ADMIN. ANNEX

Buildings and Construction Dept.1617 Lauder Rd.

Houston, TX 77039 (281) 985-6373

PROJECT MANUAL TABLE OF CONTENTS

DOCUMENT OR SECTION NO. OF PAGES

NOTICE TO BIDDERS …………………………………………... 00110-1 INSTRUCTIONS TO BIDDERS ………………………………… 00200-1 thru 00200-4PROPOSAL FORM ………………………………………………. 00430-1 thru 00430-3GENERAL CONDITIONS ………………………………………. 00700-1 SUPPLEMENTARY GENERAL CONDITIONS ………………. 00800-1 thru 00800-5SPECIAL CONDITIONS ………………………………………… 00810-1 thru 00810-12PROJECT CLOSEOUT …………………………………………... 01770-1 thru 01770-2

SPECIFICATIONS

SECTION 23 00 00 GENERAL HVAC 6 PAGES SECTION 23 07 19 HVAC PIPING INSULATION 2 PAGES SECTION 23 21 13 HVAC HYDRONIC PIPING 5 PAGES SECTION 23 64 26 AIR COOLED ROTARY SCREW WATER CHILLERS 3 PAGES

DRAWINGS

ME1 M. O. CAMPBELL MECHANICAL AND ELECTRICAL PLANS ME1 RESOURCE CENTER MECHANICAL AND ELECTRICAL PLANS ME1 EISENHOWER HIGH SCHOOL MECHANICAL AND ELECTRICAL PLANS ME1 SHOTWELL MIDDLE SCHOOL MECHANICAL AND ELECTRICAL PLANS ME1 ORANGE GROVE ELEMENTARY MECHANICAL AND ELECTRICAL PLANS ME1 SMITH ACADEMY MECHANICAL AND ELECTRICAL PLANS ME1 DESANTIAGO EC/PK MECHANICAL AND ELECTRICAL PLANS

NOTICE TO BIDDERS

Bids will be received for the following project:

CHILLER REPLACEMENT

AT VARIOUS SCHOOLS

for the Aldine Independent School District

Sealed bids will be received by the Owner until May 7 at 10:00 A.M. at the following location:

Board Room Aldine ISD Administration Building

14910 Aldine Westfield Road Houston, TX 77039

Contractor’s bid for this project will be received for the following section of work as identified below:

Bid Proposal SECTION NO. SECTION TITLENo. 1 All Various

All bids will then be publicly opened and read aloud. Any bid received after the above closing time will be returned to the bidder unopened.

Drawings, specifications and necessary information may be obtained from the Aldine Independent School District Administration Annex at 1617 Lauder Road, Houston, Texas 77039.

The Owner reserves the right to reject any and all bids, to waive any and all informalities or to accept any bid deemed advantageous to them. If the District determines that there are an insufficient number of bidders, then the bid date may be extended by not more than 14 days.

Each bidder shall submit data in regard to his qualifications as a Contractor independently of proposal, if required.

BOARD OF TRUSTEES

Aldine Independent School District

00110-1

00200 - 1

SECTION 00200

INSTRUCTIONS TO BIDDERS

1.1 RECEIPT AND OPENING OF BIDS

A. The Board of Trustees of the Aldine Independent School District (hereinafter called the Owner) invites Bids from contractors on the form attached hereto, for different portions of the work which shall include the furnishing of all labor, material and equipment to complete those portions of the work. The envelopes containing the Bids must be sealed, addressed to the President, Board of Trustees, Aldine Independent School District, Administration Building, 14910 Aldine Westfield Road, Harris County, Texas.

B. The words “SEALED BID” Proposal No. and the name of the project shall be clearly printed

in large letters on the envelope. The name of this project to be printed on the envelope is “Chiller Replacement at Various Schools”.

C. The Owner may consider informal and Bid not prepared and submitted in accordance with the

provisions hereof and may waive any and all informalities, reject any and all Bids or accept any Bid deemed advantageous to the Owner. Any Bid may be withdrawn prior to the above scheduled time for the opening of Bids or authorized postponement thereof, but may not be then re-submitted. No Bidder may withdraw a Bid or modify a Bid within thirty (30) days after the actual date of the opening thereof.

1.2 RECEIPT OF BIDS

A. Bids will be received until 10:00 AM on May 7, 2013, at the Board Room of the Aldine Independent School District, 14910 Aldine Westfield Road, Harris County, Texas

1.3 PRE-PROPOSAL CONFERENCE

There will be a Pre-Proposal held on Friday April 19, 2013 at 10:00 A.M. at M. O. Campbell Education Center, 1865 Aldine Bender, Houston, Texas.

1.4 PREPARATION OF BID

A. Bidders shall submit individual bids for this project. Bidders must submit a separate

Competitive Sealed Bid Form (Section 00305) for each Bid Proposal being submitted.

B. Each Bid must be submitted on the prescribed form, in duplicate. All blank spaces for Bid prices must be filled in, in ink or typewritten, in both words and figures, the signature in longhand and the completed form shall be without alterations or erasures. Where Bidder is a corporation, include the name of the state of incorporation and the legal signatures of two officers authorized to bind the corporation to a contract.

C. The bid form is complete and no modifications, additions, exclusions, and or attachments will

be honored. The submitted bid price shall include all portions listed in bidding documents. Any interpretation or questions shall be submitted according to section 1.10 of this document.

D. Each Bid must be submitted in a sealed envelope as detailed above. If forwarded by mail, the

sealed envelope containing the Bid must be enclosed in another envelope addressed as specified on the Proposal Form.

E. Oral, telegraphic, telephonic or email bids or modifications will not be considered.

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1.5 BIDDING DOCUMENTS

A. Drawings and specifications may be obtained from the Owner as indicated in Notice to Bidders. A refundable deposit check will be required for each. Upon return of complete sets of Drawings and Specifications, in good order, within ten (10) days after bid date, deposit will be refunded.

B. It is the responsibility of the Contractor and Sub-Contractor to ensure that they are aware of all documents and addenda issued for this project. If bidder was made aware of this bid by means of a dating service provider be sure to contact the owner at 281-985-6373 so that they can register with the department and the included on all distribution of addenda are any other information necessary.

1.6 BID SECURITY

A. Each bid must be accompanied by cash, certified check of the bidder, or a bid bond (prepared on AIA Document A-310, duly executed by the bidder as principal), in the amount of 5% of the total bid for any bid exceeding $2,500.00. Such cash, checks or bid bonds will be returned promptly after the Owner and the successful bidder have executed the Contract, or if no award has been made within 30 days after the date of the openings of bids, upon demand of the bidder at any time thereafter, so long as he has not been notified of the acceptance of his bid.

1.7 LIQUIDATED DAMAGES FOR FAILURE TO ENTER INTO CONTRACT

A. The successful Bidder, upon his failure or refusal to execute and deliver the Contract and bonds required within 7 days after he has received notice of the acceptance of bid, shall forfeit to the Owner, as liquidated damages for such failure of refusal, the security deposited with his bid.

1.8 TIME AND COMPLETION OF WORK

A. Bidder must agree to commence work on or before a date to be specified on the proposal form and to fully complete the Project within the number of calendar days indicated on the Proposal Form.

1.9 CONDITIONS OF WORK

A. Each bidder must inform himself fully of the conditions relating to the construction of the Project and the employment of labor thereon. Failure to do so will not relieve the Successful Bidder of his obligations to furnish all material and labor necessary to carry out the provision of the Contract. The Contractor, in carrying out his work must employ such methods or means as will not cause any interruption of or interference with the work of any other contractor, and the normal routine operation of the school. At times, that work portion must be performed after hours, on weekends and/or holidays at no expense to the owner.

1.10 ADDENDA AND INTERPRETATIONS

A. No interpretation of the meaning of the Drawings, Specifications or other pre-bid documents will be made to any bidder orally.

B. All issued Addenda to the drawings and specifications are to be incorporated into the work as part of the drawings and specifications. The receipt of all Addenda shall be acknowledged on the proposal form.

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C. Every request for interpretation of document should be in writing addressed to Aldine ISD Facilities Planning and Construction Department in which it will be forwarded to JSE Consulting Engineers, Inc. 16225 Park Ten Place, Suite 810, Houston, Texas 77084. Tel (281) 945-4545. Fax (281) 945-4549., and must be received at least five days prior to the date set for the opening for bids. Any and all such interpretations and any supplementary instructions will be in the form of written addenda to the Drawings and Specifications issued by the Owner. Failure of any Bidder to receive any such addendum or interpretation shall not relieve such Bidder from any obligation of the complete Contract Documents. All addenda so issued shall become part of the Contract Documents.

1.11 SECURITY FOR FAITHFUL PERFORMANCE AND PAYMENT

A. For contract amounts over $25,000.00, the Contractor shall furnish a surety bond or bonds as security for faithful performance of the Contract and for the payment of all persons performing labor on the project under this Contract and furnishing materials in connection with this Contract as specified in the General Conditions included herein. The surety on such bond or bonds shall be a duly authorized surety company acceptable to the Owner.

B. Contractor shall provide an affidavit showing proof that his bonding company meets the following criteria:

1. The Bonding Company must be domiciled in the United States 2. The Bonding Company must be licensed in the State of Texas 3. The Bonding Company must meet Owner’s approval

C. In addition to the above, the Bonding Company shall furnish to the Owner a current financial statement when requested by the Owner.

D. The cost of any necessary bond or bonds shall be included in the base bid.

1.12 LAWS AND REGULATIONS

A. All applicable State Laws, municipal ordinances, and the rules and regulations of all authorities having jurisdiction over the project are considered as included in the Contract Documents and project requirements.

B. Before services that are in the direct contact with AISD children are performed by any subcontractors or its affiliates, the subcontractor will ensure the DPS/FBI Fingerprint process by local L-1 agency is complete for all (call 512-424-2365). The names for those contracted individuals must be submitted through the Vendor link on the AISD website. Questions about this process may be directed to 281-985-7570.

C. Contractors shall obtain state or national criminal history records of employees who will work at the Sites as required by the Texas Senate Bill 9. Brief description of the process is as follows: � Establish an account on the DPS FACT clearinghouse. � Direct those employees for fingerprinting and criminal checks through DPS. � Prohibit employees with disqualifying convictions from working at the School Sites. � Certify to the School District that the process has been followed.

Fee for fingerprinting and DPS/FBI criminal check is approx. $45.00 per person. Contractor shall pay all fees.

00200 - 4

1.13 OBLIGATION OF BIDDERS

A. Before submitting a proposal, bidders shall carefully examine the Drawings, Specifications, addenda and related documents, visit the site(s) of the Work and fully inform themselves as to all existing conditions and limitations, and shall include in the Proposal a sum to cover the cost of all items included in the scope of the portion(s) of the work bid.

B. The Successful Bidder shall be allowed at no extra compensation for any items of work not anticipated which may have been determined by such review of the documents and site visits.

C. The Contractor shall check and verify all dimensions shown on the drawings and shall report any discrepancies to the Owner before proceeding with any work or the ordering of any material.

D. The Subcontractor shall verify all measurements at the sites and shall be responsible for the correctness of same. No extra charge or compensation will be allowed on account of differences between actual dimensions and the dimensions indicated on the Drawings. Any difference which may be found shall be submitted to the Owner before proceeding with the Work.

1.14 PAYMENTS

A. The basis of payments on the contract will be as set forth in the Agreement. This Agreement provide for monthly payments equivalent to ninety-five percent (95%) of the value of work performed within that month, and of the value of materials stored at the job site up to the day of that month, providing the estimate is supplied to the Owner so that it is received by the time as required.

1.15 QUALIFICATIONS OF CONTRACTOR:

A. Each Contractor desiring to bid this project shall furnish references and evidence satisfactory to the owner that has sufficient means and experience in the types of work required insuring quality and timely completion of work in a manner satisfactory to the Owner.

B. The Owner reserves the right to reject any Bid if the evidence submitted by, or investigation of, a Bidder Fails satisfy the Owner that the Bidder is properly qualified to carry out the obligations of the Contract and to complete the Work to the satisfaction of the Owner.

C. The Owner shall have the right to take such steps as may be necessary to determine the ability of the Bidder to perform the work and the Bidder shall furnish to the Owner all such information and data for this purpose as may be reasonably required. In addition to the general reservations of the right to reject any and all bids, the Owner specifically reserves the right to reject any bid of any Bidder who has previously failed to properly perform a contract of a similar nature, or to complete in a reasonable time, or who has not paid his just bills or otherwise disregarded his obligations to other subcontractors, material men or employees. In determining the lowest responsible bidder, the following considerations in addition to those above mentioned will be taken into account.

D. Whether the Bidder (a) maintains a permanent place of business; (b) has adequate financial status to meet the obligations incident to the work; (c) involved in numerous litigations, and (d) has appropriate technical experience for five years.

E. The Bidder shall perform 70% of the work with his own forces and not sub-contract it out.

00200 - 5

F. Licensed to perform work in the State of Texas for past five years.

G. Has performed work of similar scope and size.

H. The reputation of the bidder and bidder’s good and services shall be in good standing based on references from general contractors, owners and/or consultants.

I. Financially stable. Contractor must provide a letter of good standing with current financial institution.

J. As time is essential in the execution of this Contract, the Owner reserves the right to award the Contract to the Bidder of Proven ability to expedite work rather than to the low bidders

K. Evaluation of Proposals takes in to accounts the following considerations: vendor experience, price, quality of products, suitability for the intended use, and probability of continuous policy of AISD to purchase on the basis of low bids alone. Aldine I.S.D. will use the additional following factors outline in Texas Education Code 44.031b to evaluate as required by 1) the purchase price; 2) the reputation of the vendor and of the vendor’s goods of services; 3) the district’s needs; 4) the vendor’s past relationship with the district; 5) the impact on the ability relevant factor specifically listed in the request for proposals or proposals; 6) AIA Contractor Qualification Form.

END OF SECTION

00430-1

BID PROPOSAL(Submit in Duplicate)

Submitted by:

Date: Telephone No.:

TO: BOARD OF TRUSTEES ALDINE INDEPENDENT SCHOOL DISTRICT HARRIS COUNTY, TEXAS

We, the undersigned, propose to enter into a Contract with the Aldine Independent School District to furnish all labor, materials, tools, transportation, insurance, permits, and all incidentals necessary for the following subcontractor work, in accordance with the drawings and specifications, and in accordance with Owner’s construction supervision and the Construction Administration Architects, for the following project (or projects), for the lump sum(s) set forth below:

Drawings and Project Manual entitled:

CHILLER REPLACEMENT AT VARIOUS SCHOOLS

ALDINE INDEPENDENT SCHOOL DISTRICT

Bid Proposal #1

In accordance with the Notice to Bidders, the undersigned agrees to complete all contractor work required for the specification sections.

All work shall be performed in a workmanlike manner in accordance with plans, specifications, and addenda thereto.

Bidding Information Package including Requirements for Insurance and Bonds, Minimum Wage Scale, Description of Proposal Package, this Proposal Form and Project Manual, which includes an index listing the included specifications and drawings, which includes an index listing the included drawings.

We hereby acknowledge receipt of Addenda Nos.

We have carefully reviewed and understand the Notice to Bidders, and Instructions to Bidders, the drawings and specifications, examined the site(s) in detail, and have acquainted ourselves with the existing and anticipated conditions that might affect the Work, and accept the drawings and specifications as being satisfactory and adequate for construction of the Work.

We understand that if we are the successful Bidder, we will furnish satisfactory construction, performance, payment and completion bonds, each in the full amount of the Contract for contracts over $25,000.00 and furnish certificates of insurance in accordance with State law.

We attached bid security in the amount of 5% of the amount of our proposal (for amountsover $2,500.00).

Surety Name:

Attorney-in-fact: Agent.

Bid Proposal No. including the following specification sections and drawing numbers.

IF awarded the Contract for Construction, we agree to begin work within seven (7) calendardays, after written “Notice to Proceed” and substantially compete all work within

calendar days after the written “Notice to Proceed”.

SECTION NO. TITLE

00430-2

All Various

DRAWINGS INCLUDED:

ME1 M. O. CAMPBELL MECHANICAL AND ELECTRICAL PLANS ME1 RESOURCE CENTER MECHANICAL AND ELECTRICAL PLANS ME1 EISENHOWER HIGH SCHOOL MECHANICAL AND ELECTRICAL PLANS ME1 SHOTWELL MIDDLE SCHOOL MECHANICAL AND ELECTRICAL PLANS ME1 ORANGE GROVE ELEMENTARY MECHANICAL AND ELECTRICAL PLANS ME1 SMITH ACADEMY MECHANICAL AND ELECTRICAL PLANS ME1 DESANTIAGO EC/PK MECHANICAL AND ELECTRICAL PLANS

All work will be completed within calendar days after Notice to Proceed hasbeen given.

We have carefully reviewed and understand the “Notice to Bidders” and the “Instructions toBidders”, the drawings and specifications, examined the sites(s) in detail, and have acquainted ourselves with the existing and anticipated conditions that might affect the workand accept the drawings and specifications as being satisfactory and adequate for the construction of work.

Individual jobs will be awarded based on the approved low bidder.

We understand that if we are the Successful Bidder, we will furnish satisfactory constructionand furnish certificates of insurance for Worker’s Compensation in accordance with Statelaw.

If awarded the Contract for Construction, we agree to begin work within (7) calendar days,after written “Notice To Proceed”, and to substantially complete all work within

calendar days after “ Notice To Proceed”.

LUMP SUM BASE BID

CHILLER REPLACEMENT

AT VARIOUS SCHOOLS

(Written Amount)

$(Amount in Figures)

Bidder:

By:

Address:

City: State: Zip Code:

Phone:

WITNESS:

Seal (If Bidder is Corporation)

END OF PROPOSAL

00430-3

00700-1

GENERAL CONDITIONS

“GENERAL CONDITIONS OF THE CONTRACT FOR CONSTRUCTION”, AIA Document A201, issued by the American Institute of Architects, latest edition, relates to the work of this Project and is hereby made a part of this Contract as though fully contained in these specifications.

The Contractor is hereby specifically directed, as a condition of the Contract, to obtain the necessary number of copies of AIA Document A201, to acquaint himself with the Articles contained therein and to notify and apprize all subcontractors, suppliers, and any other parties to the Contract or individuals or agencies engaged on the Work as to its contents.

No contractual adjustment shall be due or become exigent as a result of failure on the part of the Contractor to fully acquaint himself and all other parties to the Contract with the Conditions of Document A201.

END OF SECTION

00800-1

SUPPLEMENTARY GENERAL CONDITIONS OF THE CONTRACT FOR CONSTRUCTION

MODIFICATIONS OF THE GENERAL CONDITIONS

ARTICLE 3, CONTRACTOR

1. Taxes: Add the following Article 3.6:

A. This project is exempt from State Sales Tax

B. The Contractor’s attention is hereby called to Ruling No. 9, from the State Comptroller’s Office concerning the State Sales Tax on Public Buildings. The Owner shall furnish the Contractor with any Certificates required to obtain his exemption. However, the Contractor will be responsible for the necessary forms and reports to effect this exemption.

2. Permits, Fees and Notices: Paragraph 3.7

A. 3.7.1.2 Owner’s Responsibility for Utilities: Pay all permanent property assessment and utility connection charges.

B. 3.7.1.2 Contractor’s Responsibility for Utilities

(1) Pay all tap charges and water meter charges. (2) Pay all temporary utility charges.

3. SUPERINTENDENT: Paragraph 3.9.1 ADD THE FOLLOWING: The Superintendent shall be satisfactory to the Owner and shall not be changed except with the consent of the Owner, unless the Superintendent leaves the employ of the Contractor.

ARTICLE 4, ADMINISTRATION OF THE CONTRACT:

1. Paragraph 4.3.8: Adverse weather conditions: Extra compensation will not be allowed due to adverse weather conditions.

2. Paragraph 4.5: Arbitration: OMIT this article in its entirety.

ARTICLE 7, CHANGES IN THE WORK:

1. Change Orders: (Revise Article 7.3.3 to read as follows: Such extra work shall be performed by the subcontractor and charged to the Owner as actual cost of labor and material plus a fee (markup)

00800-2

determined as follows: for work performed by a subcontractor, the subcontractor shall not add more than 15% of the actual cost of the labor and materials for his profit, overhead, bond, etc. for work performed by his own forces. The labor burden shall not exceed 35%. The subcontractor may add 10% of the cost (including overhead and profit of work performed by a sub-contractor). For work deleted from the Contract, deductions from the Contract Sum will be based only on the cost of labor, materials, services and equipment. Overhead, bond and profit on deleted work will not be deducted from the Contract Sum.

ARTICLE 8, DELAYS AND EXTENSIONS OF TIME: OMIT Paragraph 8.3.1, 8.3.2, and 8.3.3 in their entirety.

ARTICLE 11, INSURANCE AND BONDS:

1. Contractor’s Liability Insurance: Insurance described in paragraph 11.1 of AIA Document A201, 1987 Edition shall be for the following Minimum Limits:

a. Worker’s Compensation including Occupational Disease Coverage:

(i) In full compliance with Worker’s Compensation Act in state in which work is performed.

(ii) In full compliance with applicable Federal Acts (e.g., U.S. Longshoremen & Harbor Worker’s Act, et.al.);

(iii) Employer’s Liability Minimum Limits:

Bodily Injury by $100,000 each Accident accident

Bodily Injury by $500,000 Policy Disease limit

Bodily Injury by $100,000 each Disease Employee

(iv) Waiver of Subrogation in favor of the Aldine Independent School District (Endorsement of Policy required).

00800-3

(v) Thirty (30) days notice of cancellation or material change in favor of the Aldine Independent School District. (Endorsement of policy required)

b. Comprehensive General Liability Minimum limits Bodily Injury $500,000 each occurrence

$500,000 products and completed operations

Property Damage $100,000 each occurrence $100,000 aggregate

OR $500,000 COMBINED SINGLE LIMIT FOR BI & PD

Coverage shall include:

1. Premises – Operations; 2. Contractor’s Protective Liability (if any work

sublet);3. Contractual Liability to cover indemnity agreement

of “Hold Harmless” clause in Contract; 4. Products and completed operations must also be

maintained for a minimum period of two (2) years after Final Payment of Contractor shall continue to provide evidence of such coverage to the Aldine Independent School District on an annual basis during the aforementioned period;

5. Property Damage Liability insurance shall include coverage for following hazards:

a. Explosion b. Collapse c. Underground

6. Personal Injury Liability in a minimum limit of $500,000 with employment exclusion deleted;

7. Broad Form C G L Endorsement shall be included; 8. Waiver of Subrogation Endorsement shall be

included in favor of the Aldine Independent School District.

9. Thirty (30) day notice of cancellation or material change endorsement in favor of the Aldine Independent School District.

10. The Aldine Independent School District shall be named as additional named insured on the Contractor’s policy.

00800-4

c. Comprehensive Automobile Liability Minimum Bodily Injury $250,000 each person

$500,000 each occurrence Property Damage $100,000 each occurrence

Coverage shall include:

1. All owned, hired and non-owned autos of the Contractor;

2. Waiver of Subrogation Endorsement in favor of the Aldine Independent School District;

3. Thirty (30) days notice of cancellation or material change endorsement in favor of the Aldine Independent School District;

4. Aldine Independent School District to be named as additional insured on Contractor’s policy;

d. Umbrella Liability:

(1) Minimum Limits - $500,000 each occurrence $500,000 aggregate

Coverage shall include:

1. Waiver of subrogation endorsement in favor of the Aldine Independent School District.

2. Thirty (30) days notice of cancellation or material change endorsement favor of the Aldine Independent School District.

3. The Aldine Independent School District shall be named as additional insured on Contractor’s policy.

11.1.3 Certificate of Insurance: The Contractor shall furnish to the Aldine Independent School District Certificate of Insurance showing evidence of coverage’s required above prior to beginning work under this Contract. Such certificate shall indicate that policies will not be reduced or cancelled without thirty (30) days prior written notice to Owner. The required insurance must be written by a company licensed to do business in the State of Texas at the time the policy is issued. The insurance company must be acceptable to the Owner.

11.3.1 Property Insurance: The Contractor shall purchase insurance described in Paragraph 11.3 of AIA Document A201, 1987

00800-5

Edition, to the full amount of the Contract with the Owner as an additional named insured.

11.3.7 Waivers of Subrogation: Shall be to the benefit of the Aldine Independent School District, and the respective policies listed in Article 11 shall be endorsed accordingly.

11.4 Performance Bond and Payment Bond: The Contractor shall furnish Statutory Performance Bond in amount equal to One Hundred Percent (100%) of the Contract Sum as security for the faithful performance of this Contract and also a Statutory Labor and Material Payment Bond in amount not less than One Hundred Percent (100%) of the Contract Sum as security for the payment of all persons performing labor on the project under this Contract and furnishing materials in connection with his Contract. The Performance Bond and the Labor and Material Payment Bond may be in one or in separate instruments in accordance with local law and shall be delivered to the Owner not later than the date of execution of the Contract. The Bonding Company must be acceptable to the Owner and meet their requirements as outlined in Instructions to Bidders.

ARTICLE 12, INTEREST: OMIT Paragraph 13.6.1 in its entirety.

END OF SECTION

00810-1

SPECIAL CONDITIONS

GENERAL: This section describes General Project Requirements which shall apply to all work performed under the Contract.

DEFINITIONS: Whenever in these specifications the following terms are used, the intent and meaning shall be as follows:

A. OWNER: Aldine Independent School District acting through its Board of Trustees. B. NOTICE: Refers to written notice. Written notice shall be deemed to have been duly served

to the person, firm, or corporation for whom intended, or to his, their, or its duly authorized agent, representative or officer, when enclosed in a postage wrapper or addressed to such person, firm or corporation at said address, and deposited in a United States Mail Box.

C. EQUAL, EQUIVALENT, EQUAL OR APPROVED EQUAL: Where these terms are used in the specifications to allow consideration of a product other than products specifically named, the Owner shall be the sole judges as to whether the proposed substitution is equivalent to the specified product.

D. CONTRACTOR: When the word “Contractor” is used in these specifications, it shall mean that contractor performing any part of the work.

LOCATION OF SITES: M. O. Campbell Education Center 1865 Aldine Bender Houston, TX 77032

Resource Center 14909 Aldine Westfield Road Houston, TX 77032

Eisenhower Senior High School 7922 Antoine Drive Houston, TX 77088

Shotwell Middle School 6515 Trail Valley Way Houston, TX 77086

Orange Grove Elementary School 4514 East Mount Houston Road Houston, TX 77093

Smith Academy 5815 West Little York Houston, TX 77091

DeSantagoEC/PK1420 Aldine Meadows Houston, TX 77032

00810-2

STRUCTURE OF SPECIFICATIONS:

A. In the preparation of the specifications, an effort has been made to segregate the various sections of the specifications under headings, by trade. This is done only for convenience and shall not relieve the Contractor of the responsibility of furnishing every item indicated or specified whether properly segregated or not.

B. No responsibility, either direct or implied, will be assumed by the Owner or the Architect for omissions or duplications by the Contractor in the completion on the Contract due to any alleged error in the arrangement of these specifications, nor shall any such segregation of work and materials serve to make the architect an arbiter in defining limits to the agreements between the Contractor and his subcontractor or suppliers.

C. The misplacement, addition or omission of any letter, word or punctuation mark shall in no way damage the true spirit, intent, or meaning of the specifications.

D. Abbreviations of the names of technical organizations and societies whose specifications, standards, or criteria are included by reference or noted by initials. References are the latest editions published prior to the date of the specifications unless otherwise noted.

INTERPRETATIONS OF DETAILS, METHODS, SPECIFICATIONS, ETC:

00810-3

A. The following paragraphs are intended to govern throughout these specifications as though repeated under each separate section. These paragraphs are herein only in order to simplify the specifications and avoid repetition.

1. “The contractor shall be responsible for the proper working, workmanship, installation, operations, appearance and durability of items incorporated into the project.” (The excuse that it was installed “as detailed or specified” and it does not function properly is not valid. If the Contractor is in disagreement with any items, details, methods, or specifications, he shall notify the owner in writing prior to their incorporation in the Work. The owner will clarify such matters in writing by the owner).

2. “All manufactured articles, materials and equipment shall be applied, installed, connected, erected, used, cleaned, and conditioned in accordance with printed instructions of the manufacturer.”

3. “The contractor shall execute each part of the Work in strict accordance with the Contract Documents. The Contractor and all subcontractors shall have the qualifications and skill required to complete the work in each of the trades and specialties involved. Where there is any doubt as to the requirements or quality of the work, the Contractor shall secure instructions or clarifications from the owner before executing the work in question.”

SUBSTITUTION OF MATERIALS:

A. When a specific manufacturer, trade name or material is specified or indicated, it is to establish a standard of quality and shall not be construed as limiting completion. If the contractor desires to use material other than that specified, he shall request approval of such substitution in writing to the owner. Requests for substitution shall be presented to the owner no later than five (5) days prior to the date of bidding as identified in the Contract Documents. Materials considered acceptable for bidding will be approved by a written Addendum issued by the owner. Telephone requests for substitutions will be considered only if contractor submits the following:

1. Complete technical data, including drawings, complete performance specifications, test data, samples and performance tests of the article proposed for substitution. Submit additional information if required by the owner.

2. Similar data similar to above for the specified item (for proper comparison).

3. Statement by subcontractor that the proposed substitution is in full compliance with the Contract Documents and applicable codes and authorities.

4. List of other trades, if any, which may be affected by the substitution.

5. Contractor shall be responsible for any negative effect upon the Work due to any substitution, and shall pay any additions cost caused by any situation.

00810-4

CONFLICTS:

A. If, after award of Contract, any conflicts appear in the Contract documents, the subcontractor shall, within 10 days after award of the Contract, notify the Owner in writing of such conflict and shall not proceed until such conflict has been resolved.

B. In the event of the subcontractor’s failing to give such notice, he shall be held responsible for the results of such conflicts and the cost of any required corrective action.

SUBMITTALS AND SHOP DRAWINGS:

A. The contractor shall verify all field measurements and prepare shop drawings promptly so as to cause no delay in the Work. Minimum requirements include five (5) copies of manufacturer’s literature, etc., one (1) manufacturer’s reproducible sepia and two (2) blue line prints of all shop drawings required for the work of the various trades. After the subcontractor has checked, approved and signed all shop drawings, he shall then deliver them to the Owner for approval. Any products or information not related to the specified product shall be deleted from manufacture’s literature.

B. Upon receipt of shop drawings from the Owner, the Architect shall pass upon them with a reasonable promptness making desired corrections, including all corrections relating to design and artistic effect. The Architect’s approval of shop drawings or manufacturer’s literature shall not relieve the subcontractor from responsibility for deviations from drawings or specifications unless he has, in writing, called the Architect’s attention to such deviations from drawings or specifications at the time of submission and secured his written approval. Nor shall any approvals relieve the subcontractor from responsibility for any errors in shop drawings or schedules. The Architect and his consultants are not responsible for quantities shown on shop drawings.

C. The Owner will not accept submittals, which are not in compliance with the above requirements. Such submittals will be returned to the contractor without review or stamp.

COOPERATION: Each contractor, all other subcontractors and sub\subcontractor shall coordinate with each trade so as to facilitate the general progress of the Work. Each trade afford all other trades every reasonable opportunity for the installation of their work and for the storage of their materials.

QUALITY OF ARTICLES, MATERIALS AND EQUIPMENT: Articles, materials and Equipment to be incorporated in the Work under the Contract shall be new and without Evidence of defects or prior use unless otherwise specified.

LAYOUT OF WORK:

A. As the work progress, the subcontractor shall establish on the forms or rough flooring the exact location of all partitions as a guide to all trades.

B. In laying out the Work, each subcontractor shall verify all measurements and dimensions affecting his work and shall immediately report any errors to the Owner.

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GUARANTEE: Each contractor shall guarantee his work including labor and materials for a period of one (1) year from date of Substantial Completion and shall leave the Work in perfect order at Completion. Neither the final Certificate of Payment, Final payment, nor any other provision in the Contract Documents shall relieve the subcontractor of any responsibility for negligence or faulty materials or workmanship within the extent and period provided by law, and upon written notice, he shall remedy any such defects and pay all expenses for any damage to other work resulting there from. This guarantee of the Work shall not relieve the subcontractor of any responsibility for installed work not in compliance with the drawings and specifications regardless of the time discovery.

CODE REGULATIONS: Where the requirements of the latest edition of the local building code, or other governing authorities conflict with the drawings and specifications, they shall be followed the same as if specifically included in the Contract Documents. When the Contract Document requirements are in excess of the code requirements, the Contract Documents shall govern.

APPROVED APPLICATORS: Where these specifications require that a particular product or material(s) be installed or applied by an installer approved by the manufacturer, it shall be the subcontractor’s responsibility to ensure that any installer used for such work be approved by the manufacturer for the specific installation.

CONTRACT FORMS:

A. The following standard forms issued by the American Institute of Architects will be included as part of the Contract Documents:

1. Standard Form of Agreement Between Owner and contractor A-101, 1997

2. Performance Bond A-312, Oct., 1999 3. Labor and material Payment(must be

on Statutory form) A-312, Mar., 2000 4. Certificate of Insurance G-705, Feb., 1978 5. Application and Certificate

for payment G-702 May, 1983 6. Change Order G-701 April, 1978 7. Certificate of Substantial

Completion G-704 April, 1978 8. Contractor’s Affidavit of Release

of Liens and Payment of Debts and Claims G-706 April, 1970

9 Consent of Surety to Final Payment G-707 April, 1970

REPORTS:

A. Maintain a daily record at the job site of: (1) deviations from working drawings and (2) measured location and elevations of concealed underground work.

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B. At completion of work, submit As-Built drawings to the Owner in a finished form equivalent to the original drawings.

OWNER’S INSPECTION:

A. The Owner’s representative will periodically examine the work on behalf of the Owner. Each subcontractor shall coordinate his work to ensure that:

1. No pipe, conduit or equipment is to be buried or concealed until it has been inspected and approved by the Owner’s representative.

2. Owner’s representative will inspect all plumbing and mechanical items (which will be concealed installation) prior to concealment. It is the responsibility of the contractor to notify the Owner at least 24 hours before covering work to be concealed.

3. Substitutions or change of materials, appliances, equipment, etc., are to be approved by submission to the Architect’s office, and evidence of such approval is to be available to the Owner’s Representative on the job.

UL LABEL: All materials and equipment for which Underwriter’s Laboratories, Inc. or other authorities’ standards have been specified or otherwise required shall bear that authorities’ label.

A. The subcontractor shall, at his own expense:

1. Take every precaution against injuries to persons or damages to property.

2. Comply with the regulations governing the operation of premises, which are occupied, and to coordinate his operations in such a manner as not to interrupt or interfere with the operations of the Owner.

3. Store his apparatus, materials, supplies and equipment at the site(s) of the Work so as not to interfere with the progress of work or the operations of the Owner.

4. Frequently clean up all refuse, rubbish, scrap metals, and debris caused by his operations so that at all times the site(s) of the Work shall present a neat, orderly and workmanlike appearance.

5. Coordinate the cutting, fitting or patching of his work as required to conform to the drawings and specifications.

6. Before Final Payment, remove all surplus materials, false work, temporary structures (including foundations) and debris of every nature resulting from his operations and to present the site (s) in a neat, orderly condition.

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7. Thoroughly clean all finished surfaces on the interior of the Work: clean and polish all glass installed under the contract; and remove all paint spatters and other defacements.

PUMPING AND DRAINAGE: Surface or subsurface water or other fluids shall not be permitted to accumulate in excavations; nor in or about the premises. Water or other fluids shall be controlled and suitably disposed of by means of temporary pumps, piping drainage lines, troughs, ditches, dams or other methods approved by the Owner. Water shall not be allowed to stand around existing trees.

OWNER’S PROPERTY: Contractor/Subcontractors shall not use the Owner’s equipment, furniture, etc., under any conditions unless the contractor has received prior written approval from the Owner.

ADVERSE WEATHER:

A. When the contractor has experienced delays during the construction period for which he is entitled to an extension of time, he shall submit a written request to the Owner for such extension. This request shall list each day or group of days in which the delay occurred. Periods of delay shall not include Saturdays, Sundays and Legal Holidays. No claim for extension of time will be considered unless the claim is filed within 48 hours. These request will be reviewed by the Owner for approval.

B. A typical working day is defined as any day that a worker works a minimum of 8 hours between 7:00 AM to 6:00 PM which is not Saturday, Sunday, or a Legal Holiday. The contractor must maintain the construction schedule and overtime may be necessary without additional compensation. Since the facility is in constant operation, utility outages will be scheduled outside these hours and/or on Saturday, Sunday, or a legal holiday without additional compensation.

C. Extra compensation will not be allowed due to adverse weather conditions.

EXCLUSIONS OF ASBESTOS CONTAINING PRODUCTS: As required by the Asbestos Emergency Act of 1986 (AHERA), the use of building materials, equipment or other manufactured items, which may contain asbestos, shall not be incorporated into this project nor utilized in the construction operations of this project. Prior to the start of construction each contractor shall submit a written statement addressed to the Owner, stating the above.

TRENCH EXCAVATIONS: All trench excavations shall be performed and made safe in accordance with current applicable rules and regulations established for construction by the Department of Labor; Occupational Safety and Health Administration (OSHA), and local ordinances. Where additional requirements for trenching are included in the technical specifications, those additional requirements shall be followed.

WAGE SCALE:

A. In compliance with the laws of Texas relating to labor, (Acts 1933, 42 Let., p. 91, Chapter 45), each General subcontractor and subcontractor shall pay not less than the general prevailing wage rates as enclosed. The contractor shall pay all laborers, workmen and mechanic

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employed by them in the execution of this Contract no less than such rates for each craft or type of workman or mechanic needed to execute the Contract. If it becomes necessary to employ any person in a trade or occupation not herein listed, such person shall be paid not less than an hourly rate comparable to the rates in the Aldine area.

B. This determination of prevailing wages shall not be construed to prohibit the payment of more than the rates named.

C. The attention of the contractor and all sub-contractors is called to the following laws of Texas relating to Labor: Art. 5159a, R.C.S.; Art. 5181a P.C.; Art. 5165, R.C.S.; Art 1579, P.C.; Art 1580, P.C.; and Art. 1581 P.C.

D. In compliance with the above cited Art. 5159a, R.C.S., Section 2, the subcontractor shall forfeit as a penalty to the Owner, Sixty DOLLARS ($60.00) for each laborer, workman or mechanic employed, for each calendar day, or portion thereof when such laborer, workman, mechanic is paid less than the rate stipulated hereinafter for any work done under this Contract by him or any subcontractor under him.

E. If requested, the contractor shall make readily available to the district records showing the name, occupation, and wage rate paid for each worker employed by the contractor or subcontractor in the construction of the public work.

WAGE SCALE

Note: The following are minimum prevailing hourly wage rates that have been established in strict accordance with Texas Government Code. No laborer or workman employed at this jobsite shall be paid less than the minimum wage rate. The hourly wage rates listed here are basic hourly rates, exclusive of benefits and burden.

Classification Hourly Rate

Bricklayer/Stone Mason $18.00 Carpenter

Form $11.38 Rough/Trim and Finish $14.25

Concrete Finisher/Cement Mason $12.63 Drywall Installer/Ceiling Installer $13.52 Electrical

Electrician $18.08 Equipment Operator

Light Equipment $ 9.25Heavy Equipment $13.50

Fire Alarm Installer $17.00Flooring

Carpet Layer $12.00Flooring Installer $14.71

Glazier $15.00HVAC Installer/Mechanic $21.12Insulator

Building $10.49Mechanical Piping $15.00

IronworkRebar $11.44 Structural $16.74

Laborer

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Unskilled $ 8.08Skilled $10.89

Lather $18.36Painter $10.83Pipefitter $21.11Plasterer $18.36Plumbing

Plumber $19.91Operator $17.13Laborer $11.54

Roofer $10.85Sheet Metal Work

Ductwork $17.84Roofing $11.25

Sprinkler Fitter $16.67Terrazzo Finisher $18.93Truck Driver $ 7.21Waterproofer/Caulker $11.33

All Trade Helpers shall be paid a minimum of 60% of listed Journeyman’s wages

WORKER’S COMPENSATION: Full compliance with the requirements of the Texas Labor Code 406.096 to provide worker’s compensation insurance is mandatory. The Contractor will be required to provide certificates of coverage for the contractor’s adopted employees and retain certificates of coverage on file in accordance with Rule 110.110 adopted by the Texas Workers Compensation Commission. A copy of the provisions of subsection (c) paragraph (7) of this rule is included herein. Additional requirements for insurance are indicated in the General Conditions A201 and Supplementary General Conditions.

REPORTING REQUIREMENTS: TEXAS LABOR CODE 406.096, RULE 110,110 WORKERS COMPENSATION AND INSURANCE.

A. Definitions:

Certificate of coverage (“Certificate”) – A copy of a certificate of Insurance, a certificate of authority to self-insure issued by the commission, or a coverage agreement (TWCC-81, TWCC-82, TWCC-83, or TWCC-84), showing statutory work’s compensation insurance coverage for the person’s or entity’s employees providing services on a project, for the duration of the project.

Duration of the project – includes the time from the beginning of the work on the project until the contractor’s person’s work on the project has been completed and accepted by the government entity.

Persons providing service on the project (“subcontractor” in Para.406.096)- includes all persons or entities performing all or part of these services the contractor has undertaken to perform on the project, regardless of whether the person contacted directly with the contractor and regardless of whether that person has employees. This includes, without limitation, independent contractors, subcontractors, leasing companies, motor carries, owner- operators, employees of any such entity, or employees of any entity, which furnished persons

00810-10

to provide services on the project. “Services” include, without limitation, providing, hauling or delivering equipment or materials, or providing labor, transportation, or other services related to a project. “Services” does not include activities unrelated to the project, such as food/beverage vendors, office supply deliveries, and delivery portable toilets.

B. The Contractor shall provide coverage, based on proper reporting of classification codes and payroll amounts of filing of any coverage agreements, which meets the statutory requirements of Texas Labor Code, Section 041.011 (44) for all employees of the contractor providing services on the project, for the duration of the project.

C The Contractor must provide all certificate of coverage to the governmental entity prior to being awarded the contract.

D. If the coverage period shown on the contractor’s current certificate of coverage ends during the duration of the project, the contractor must, prior to the end of the coverage period, file a new certificate of coverage with the governmental entity showing that coverage has been extended.

E. The contractor shall obtain from each person providing services on a project, and provide to the governmental entity:

(1) A certificate of coverage, prior to the person beginning work on the project, so the governmental entity will have on file certificates of coverage showing coverage for all persons providing services on the project; and

(2) no later than seven days after receipt by the contractor, a new certificate of coverage showing extension of coverage, if the coverage period shown on the current certificate of coverage ends during the duration of the project.

F. The contractor shall retain all required certificates of coverage for the duration of the project and for one year thereafter.

G. The contractor shall notify the governmental entity in writing by certified mail or personal delivery, within 10 days after the contractor knew or should have known, of any change that materially affects the provision of coverage of any person providing services on the project.

H. The contractor shall post on each project site a notice, in the text, form and manner prescribed by the Texas Workers’ Compensation Commission, informing all persons providing services on the project that they are required to be covered, and stating how a person may verify coverage and report lack of coverage.

I. The contractor shall contractually require each person with whom it contracts to provide services on a project, to:

(1) provide coverage, based on proper reporting of classification codes and payroll amounts of filing of any coverage agreements, which meets the statutory

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requirements of Texas Labor Code, Section 401.011(44) for all of its employees providing services on the project, for the duration of the project;

(2) provide to the contractor, prior to that person beginning work on the project, a certificate of coverage showing that coverage is being provided for all employees of the person providing services on the project, for the duration of the project;

(3) provide the contractor, prior to the end of the coverage period, a new certificate of coverage showing extension of coverage, if the coverage period shown on the current certificate of coverage ends during the duration of the project;

(4) obtain from each other person with whom it contracts, and provide to the contractor;

(a) a certificate of coverage, prior to the other person beginning work on the project; and

(b) a certificate of coverage showing extension of coverage, prior to the end of the coverage period, if the coverage period shown on the current certificate of coverage ends during the duration of the project;

(5) retain all required certificates of coverage on file for the duration of the project and for one year thereafter;

(6) notify the governmental entity in writing by certified mail or personal delivery, within 10 days after the person knew or should have known, of any change that materially affects the provision of coverage of any person providing services on the project; and

(7) contractually require each person with whom it contracts, to perform as required by paragraphs (1) – (7), with the certificates of coverage to be provide to the person for whom they are providing services.

J. By signing this contract or providing or causing to be provided a certificate of coverage, the contractor is representing to the governmental entity that all employees of the contractor who will provide services on the project will be covered by workers’ compensation coverage for the duration of the project that the coverage will be based on proper reporting of classification codes and payroll amounts, and that all coverage agreements will be filed with the appropriate insurance carrier or, in the case of a self-insured, with the Commission’s Division of Self-Insurance Regulation. Providing false or misleading information may subject the contractor to administrative penalties, criminal penalties, civil penalties, or other civil actions.

K. The contractor’s failure to comply with any of these provisions is a breach of contract by the contractor which entitles the governmental entity to declare the contract void if the contractor does not remedy the breach with ten days after receipt of notice of breach from the governmental entity.

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END OF SECTION

01770-1

PROJECT CLOSEOUT

GENERAL:

A. The General, Supplementary, and Special Conditions of these specifications shall all be considered as a part of this Section insofar as they may be termed applicable, whether attached or not.

B. Comply with all requirements of the Contract Documents. Furnish certificates, affidavits, and other requirements specified herein and throughout the Contract Documents.

SUBSTANTIAL COMPLETION:

A. When the project, or specified areas of the Project, has reached Substantial Completion as defined in General Conditions, subparagraph 9.8.1, send written notice to Owner. The written notice shall include a list of items (“Punch List”) prepared by the contractor, indicating work to be completed or corrected.

B. Owner will make a preliminary inspection to verify the list of items (“Punch List”) requiring completion or correction.

C. If the Owner should not concur in the Contractor’s claim of Substantial Completion, he will notify Contractor, who shall complete the Work to the point of Substantial Completion and send written notice to the Owner.

D. If the project is Substantially Complete, as determined by the Owner, the Architect will issue a Certificate of Substantial Completion A.I.A Document G-704, for the approval and acceptance of the Owner and Contractor accompanied by a list of items to be completed.

RECORD DRAWINGS/AS-BUILT DRAWINGS:

A. Contractor shall provide full set of As-Built Drawings which clearly show all differences between the Contract Work as drawn and as installed for all work, as well as work added to the Contract which is not indicated on the Contract Drawings.

B. Contractor shall maintain entire set of blue line prints at the jobsite. These Record Drawings shall be kept legible and current and shall be available for inspection at all times by the Architect. All changes in the Contract Work, or work added, shall be recorded in the Record Drawings in a contrasting color.

FINAL INSPECTION: Notify Owner in writing when Project is finally complete, above requirements have been met, and all punch list items have been completed. Owner will make final inspection and notify the Contractor whether Project is complete.

01770-2

RELEASE OF LIENS: Deliver to Owner a blanket Release of Liens, A.I.A. Document G- 706, covering all work under the contract, including all subcontractors, labor, material and services, executed by an authorized officer and duly notarized; also, provide separate Releases of Liens from all subcontractors and major vendors/materials suppliers.

FINAL PAYMENT:

A. Submit Final Application for payment after Owner acknowledges completion of Project; indicating adjustment of accounts including original Contract Sum, additions, and deductions as included on Change Orders, deductions for cash allowance balances, deductions for uncorrected work, deductions for liquidated damages, etc.

B. Submit Consent of Surety Company to Final Payment, A.I.A., Document G-707.

C. Owner will issue final Certificate for Payment upon completion of Project and proper execution of all required documents

END OF SECTION

23 00 00 General HVAC Page 1 Project 1225 Phase 1

SECTION 23 00 00 - GENERAL HVAC 1.1 RELATED DOCUMENTS The General Provisions of the Contract, including General, Supplementary and Special Conditions, apply

to the work specified in this Section. 1.2 INTENT OF DRAWINGS AND SPECIFICATIONS

A. Drawings and Specifications are intended to be complimentary. Any work exhibited in either of them whether in the other or not, is to be executed according to true intent and meaning thereof, the same as if set forth in all. Should any work required by the drawings and specifications be in violation of any Federal, State, County or City laws, ordinance or regulation, those laws and regulations shall prevail, and shall be complied with by the Contractor as a part of this work with no extra compensation.

B. The drawings are schematic in nature, but show the various components of the system approximately to

scale and indicate how they are to be integrated with other parts of the building. Determine exact locations by close coordination with the Owner’s Representative, job measurements, determining the requirements of other trades and reviewing all contract documents. The Drawings indicated general routing of the various parts of the systems, but do not indicated all fittings, offsets and runouts which are required. The Contract includes these items as required to fit the system into spaces allotted for them.

C. Equipment that is scheduled is the basis of the design, and have been coordinated for space, installation

and electrical requirements. Space, installation and electrical requirements for other equipment and models from acceptable manufacturers have not been verified or coordinated. Contractor shall verify these requirements prior to using other equipment in his bid and include any additional costs for installation of the equipment. This includes general construction and MEP costs.

1.3 PERMITS AND FEES The contractor shall obtain and pay for all permits and licenses, file all notices, pay all legal fees and

comply with all laws, ordinances, rules and regulations bearing on the conduct of the work specified or shown on the drawings. This applies to Federal, State and Local Codes and Requirements. Approval to the various insuring and inspection authorities shall also be obtained. Refer to Architectural sections for additional information.

1.4 GUARANTEE

All materials, apparatus and equipment furnished and installed under this Section of these Specifications shall be new and free from any defects when accepted by the Owner and shall be guaranteed in writing for a period of one year from the date of acceptance by the Owner unless noted to have extended warranties.

1.5 COOPERATION

The Contractor shall cooperate with other trades on the job and make installations in the proper sequence during the construction of the buildings, and he shall notify the Architect well in advance of construction of all interference of his work with that of other trades and of building construction. This notification shall not relieve the contractor of his responsibilities.

23 00 00 General HVAC Page 2 Project 1225 Phase 1

1. 6 VISITING THE SITE The Contractor shall be familiar with the Drawings and Specifications and shall have examined the

premises and understand the conditions under which he will be obligated to operate in performing the contract. No allowance shall be made consequently for any error through negligence in this regard.

1.7 WORKMANSHIP

All work shall be performed in a neat workmanlike manner and in the best practice of the trade. Only workmen skilled in the trades shall be employed to perform the work included in these specifications.

1.8 MATERIALS

A. Materials, when not otherwise definitely specified, shall conform to applicable National Specifications and Standards. All materials shall be certified to not contain any asbestos or other material banned by the Environmental Protection Agency. Lead shall not be used in any material, pipe or solder in contact with the domestic water system.

B. The names of manufacturers and model numbers have been used in the Contract Documents to establish

type of equipment and standard of quality. Where only one name is mentioned for a particular item of material, then that manufacturer is the only one acceptable. Where several names are mentioned, any one of those listed may be furnished provided submittal contains sufficient information to show complete compliance with contract Documents. No attempt has been made to determine if each manufacturer listed will produce material that will comply with all requirements of this project or will fit the allotted space; if they do, then it will be acceptable.

C. Requests for substitution during the bidding period, in accordance with the requirements of the Special

Conditions, must be accompanied by a complete product submittal with all features, accessories and capacities noted. Large equipment must include a 1/4" scale drawing showing how the equipment and required access space are compatible with the available space. Acceptance for bidding does not waive the post bidding requirement for formal submittal and approval.

1.9 REMOVAL OF RUBBISH AND CLEAN-UP Keep area of operations free from accumulation of waste material or rubbish at all times. At the

completion of the work, remove all rubbish, tools, scaffolding and surplus materials from the area of operations. The exposed parts of the Mechanical installation which are to be painted shall be thoroughly cleaned of cement, plaster, grease, oil spots and other materials in preparation for painting. All piping shall be cleaned of cement, plaster and other construction debris prior to being concealed above accessible ceilings or being insulated. Clean exposed piping prior to final inspection. All construction areas shall be left "broom" clean on a daily basis. Prior to final acceptance, vacuum clean all mechanical rooms including equipment.

23 00 00 General HVAC Page 3 Project 1225 Phase 1

1.10 OPERATION TESTS AND ADJUSTMENTS After completion of the work and before final acceptance thereof, the Contractor shall notify the Architect

when he has balanced the air and hydronic systems to within 10% of the scheduled values. 1.11 LUBRICATION

After the installation is completed, lubricate all moving parts of all equipment furnished under this Division of the Specifications requiring same. Leave with the Owner a brief but complete set of lubrication instructions, showing the recommended frequency of lubrication and the type of lubricant recommended for each piece of equipment.

1.12 NOISE AND VIBRATIONS The Contractor shall guarantee that the entire system and its component items of equipment, as installed by

him, shall operate without objectionable vibration or noises, as determined by the Architect. If, in the opinion of the Architect, objectionable vibration or transmission thereof to the building occurs, the Contractor shall execute such remedial measures as are necessary to eliminate such unsatisfactory operating conditions and the material and labor thereby required shall be performed at the Contractor's expense.

1.13 GENERAL EQUIPMENT REQUIREMENTS Manufacturer's printed directions shall be followed for preparing, assembling, installing, erecting and

cleaning manufactured materials or equipment, unless otherwise directed. 1.14 SHOP DRAWINGS

A. Submit seven complete sets of shop drawings checked and certified by the contractor as being checked, and lists of materials furnished under this Division. Shop drawings shall be approved before installation of the material under consideration.

B. Shop Drawings shall consist of published ratings of capacity data, detailed construction drawings, wiring

and control diagrams, performance curves, installation instructions, manufacturer's installation drawings and other pertinent data. Where the literature is submitted covering a group or series of similar items, the item under consideration shall be clearly indicated. Ductwork shop drawings shall include one blueline set and one reproducible set. Drawings shall be submitted showing revisions to equipment layouts due to use of alternate or substitute equipment. The front sheet of each copy of the submittal shall have the following typed information:

1. Job name and location. 2. General Contractor's name, address, Project Manager's name and telephone number. 3. Submitting Sub-contractor's name, address, Project Manager's name and telephone number. 4. Suppliers company name, address, salesman's name and telephone number. 5. Signature of an officer or attorney-in-fact of the Sub-contractor with date and title and a statement

that the submittal materials and equipment complies with the Contract Documents.

Any submittal without all of the above information will be rejected without review.

23 00 00 General HVAC Page 4 Project 1225 Phase 1

C. Equipment that has regional representation shall only be supplied by the regional representative that serves the area where the project is located. The regional representative’s name and signature shall be included with the shop drawing.

D. Shop Drawings are required for but are not limited to the following items:

Chillers Insulation E. Approval of these submittals shall not be construed as releasing the contractor from compliance with the

contract Documents. They are a means of coordinating the work and aiding in the proper selection and installation of equipment. Do not release items such as fire dampers and starters until associated equipment or ductwork drawings are approved. All materials and equipment shall be subject to final acceptance by the Engineer at the completion of construction and adjustments of the system.

F. If a submittal is returned to the Contractor marked “Rejected” or “Revise and Resubmit”, only one (1)

additional submittal will be permitted without the Contractor incurring charges for the additional re-submittals. JSE shall be reimbursed by the Contractor for any expense in connection with any necessary submission in addition to the two (2) submissions allowed. Contractor will be billed by JSE at a rate of $125/hr for these occurrences.

1.15 PROTECTION OF EQUIPMENT

A. Do not deliver equipment to jobsite until progress of construction has reached the stage where equipment is actually needed, or until building is closed in enough to protect equipment from the weather. Equipment allowed to stand in weather will be rejected, and Contractor is obligated to furnish new equipment at no cost to Owner.

B. Adequately protect equipment (including all Owner-furnished items) from damage after delivery to job.

Cover with heavy cloth as required to protect from damage. C. Equipment which has been damaged by construction activities will be rejected. Contractor shall furnish

new equipment at no cost to Owner.

1.16 CUTTING AND PATCHING Coordinate the work with other trades to arrange for all holes, chases, and other spaces necessary for the

installation of all components of the mechanical systems. Inform the other trades in ample time for these to be provided. Failure to comply with this requirement may necessitate cutting and patching work. If such work becomes necessary, it will be done under this Section of the specifications, and shall conform to all applicable requirements of other Sections of the Specifications.

1.17 STRUCTURAL STEEL All structural steel used for the purpose of fabricating pipe supports, pipe guides, pipe anchors, equipment

supports, and framing for large ducts and plenums, shall conform to ASTM Designation A-36. All steel used for these purposes shall be new, clean, straight and galvanized.

23 00 00 General HVAC Page 5 Project 1225 Phase 1

1.18 SPARE PARTS LISTS, OPERATING INSTRUCTIONS At completion of job, furnish three copies of spare parts lists and operating instructions for all equipment

furnished under this Division. These lists and instructions shall be published by the manufacturer of the equipment and shall be in good condition. Bind in 3-ring binder with project name.

1.19 TOOLS AND SPARE PARTS Upon completion of the installation, deliver to the Owner all tools and spare parts that are furnished by the

Equipment Manufacturer for use with the equipment furnished under this Contract. 1.20 REFRIGERANT AND OIL Furnish and install full refrigerant and oil charge in the air conditioning refrigeration systems and maintain

it for full term of the guarantee. 1.21 RECORD DRAWINGS

Obtain a set of project drawings and keep these at jobsite during construction. During the course of construction, mark on these prints any changes which are made, noting particularly locations for those items which will need to be located for servicing. At completion of job, mark each sheet "Record Drawings", date and deliver to Architect.

1.22 MEP INSPECTIONS A. Contractor shall formally request inspections from JSE to review any and all MEP installations.

Inspections shall include but not be limited to: pipe tests, underground installations prior to backfill, rough-in installations, wall cover inspections, above ceiling inspections, final inspection.

B. Information required from Contractor on each and every request for inspection is as follows:

1. Specific type of test (i.e. hydrostatic test, head pressure test, medium pressure duct test, etc.). 2. Exact location of test (i.e. area of building with wing or room numbers). 3. Description of test (i.e. partial inspection, walls only, chase walls, wall cover, ceiling cover, etc.) 4. Exact time test started (required test time per Project Manual will need to have elapsed prior to JSE

inspection). Estimated time test will start will not be acceptable. 5. Pressure reading on gauge at time of request for all pipe tests (provide picture of gauge with request). 6. Verification from General Contractor with name of person that verified, that specific test has been

verified by the Contractor and all sub-contractors to meet all requirements of the Specifications and Codes (prior to inspection request).

C. Contractor shall provide a MINIMUM of 48 hour notice prior to requested inspection time, no exceptions.

23 00 00 General HVAC Page 6 Project 1225 Phase 1

D. INSPECTION REPORTS: After each inspection, JSE will generate an inspection report and distribute promptly. The Contractor will then be given 7 working days from date of report to address all deficiencies listed on the report. The GENERAL CONTRACTOR shall verify that all items on each inspection report have been addressed by their subcontractors in this time period. Once verified the GENERAL CONTRACTOR shall sign-off on each deficiency listed on the report and return the signed-off copy of the inspection report to JSE via e-mail. After the signed-off report is returned to JSE, the GENERAL CONTRACTOR shall request a re-inspection by JSE to close the report. If after 7 working days no re-inspection is requested by the GENERAL CONTRACTOR to close a report, JSE reserves the right to re-inspect whenever our schedule allows, with these re-inspections still being subject to Paragraph E below.

E. TEST REJECTIONS AND RE-INSPECTIONS: If a test is rejected or a re-inspection of an issued JSE

Inspection Report is found to NOT be completely addressed, only ONE (1) additional inspection will be permitted without the Contractor incurring charges for each additional inspection required. JSE shall be reimbursed $500 by the GENERAL CONTRACTOR for expenses in connection with EACH inspection in addition to the two (2) inspections allowed.

1.23 SUBSTANTIAL COMPLETION

No portion of the total contract will be declared substantially complete until the automatic temperature

controls for that portion has been demonstrated to be complete and functioning as intended. The temperature control system will be complete and functioning as intended when all of the space temperatures are maintained at plus or minus two degrees of set point.

1.24 DEMOLITION AND REMODELING

A. In areas of demolition, contractor shall remove all HVAC equipment, piping and devices not to be reused. Any material that has salvage value shall be offered to the Owner, and if accepted, delivered to his warehouse. If not accepted it shall be properly disposed of with the other construction debris.

B. Where large equipment is to be replaced (chillers, boilers, air handling units, etc.), ensure that equipment

that is an acceptable manufacturer but not the scheduled brand will fit the available space and can be installed through existing doors, louvers or windows, prior to using this equipment in the bid.

C. Where new chilled or heating water piping connects to the existing system, system may require partial or

complete draining of water. Include the costs of shutdown, drainage, refilling with properly treated water, and restarting of the system.

D. Where existing equipment is modified or replaced and interfaces with the Energy Management System,

disconnect and reconnect EMS wiring, and replace sensors as necessary.

END OF SECTION

23 07 19 HVAC Pipe Insulation Page 1 Project 1225 Phase 1

SECTION 23 07 19 – HVAC PIPE INSULATION PART 1 - GENERAL 1.1 RELATED DOCUMENTS The General Provisions of the Contract, including General, Supplementary and Special Conditions, apply

to the work specified in this Section. 1.2 GENERAL REQUIREMENTS

A. Install all insulation in conformance with manufacturer's recommendations and these specifications. B. LEED EQc4.1: Low-Emitting Materials: All interior adhesives and sealants must meet VOC limit

requirements of South Coast Air Quality Management District (SCAQMD) Rule #1168. C. LEED EQc4.2: Low-Emitting Materials: All interior paints and coatings must meet VOC limit

requirements of South Coast Air Quality Management District (SCAQMD) Rule #1113 and Green Seal GS-11 and GS-03.

D. Insulation materials manufactured by the following list of companies will be acceptable provided their

materials conform to these specifications (see Paragraph on Substitution): Armstrong, CertainTeed, Childers, Foster, Insulphen, Knauf, Koolphen, Manville, Owens-Corning, Pabco, Pittsburg-Corning and SPI.

E. Flame Spread and Smoke Requirements:

1. All jackets, adhesives, coatings, insulating materials and vapor barrier mastics for air distribution systems shall meet the requirements of NFPA Bulletin 90-A with a flame spread of 25 or less and smoke developed rating not higher than 50.

2. All jackets, adhesives, coatings, insulating materials and vapor barrier mastics for piping and

equipment shall have a flame spread not higher than 25 and smoke developed rating not higher than 50.

3. All materials containers shall have a U. L. Label.

F. At each pipe support point, install a hard section of Koolphen K or Insulphen phenolic foam pipe insulation, minimum 18" length, on lower 180° of piping, 360° if clamps are used on top of pipe, same thickness as adjacent insulation, to prevent compression at support bearing area. Seal and finish to match adjoining insulation. Provide formed 16 gage galvanized sheetmetal saddles, same length as hard section, to completely cover hard section.

G. Install .020" thick aluminum jacket with minimum 2” overlap joint on all insulated piping exposed outside

building. Install factory made aluminum covers on all elbows. Cut aluminum neatly to fit all tees, such that all insulation is covered by aluminum. Use waterproofing aluminum colored Foster 95-44 or Childers CP-76-1 sealer to seal all joints with 1/8” bead. Provide .020x3/4” aluminum bands not more than 12" on center for all jacketing. Install aluminum covers on insulated pipe inside that is exposed to view in finished areas. Cover is not required in mechanical or AHU rooms. Jacketing in contact with soil shall be .010" stainless steel.

23 07 19 HVAC Pipe Insulation Page 2 Project 1225 Phase 1

PART 2 - MATERIALS AND METHODS 2.1 CHILLED WATER PIPING

A. GENERAL: Insulate all chilled water piping, valves, fittings and other items subject to condensation. Insulate chiller connections to chiller barrel insulation so there is no break in the insulation of the system.

B. PIPE:

1. MATERIALS: Molded Koolphen K or Insulphen phenolic foam pipe insulation, 3.7 pounds per

cubic foot density, conductivity (k) not higher than .14 at 100° mean temperature difference with factory attached fire retardant, vapor barrier jacket.

2. EXECUTION: Install insulation over pipe and carefully connect self sealing laps. Provide 3" butt

strips at each joint between sections, sealed with Foster 85-75 or Childers CP-82 adhesive. Coat all vapor retarder film (ASJ) longitudinal and butt joints with Foster 30-80AF anti fungal, vapor barrier coating to prevent moisture ingress. Coating permeance shall be 0.013 perms or less at 43 mil dry thickness as tested by ASTM E96 and meet ASTM D5590 with 0 growth rating. Apply Foster 95-50 or Childers CP-76 insulation joint sealant on all phenolic insulation longitudinal and butt joints to prevent moisture ingress. Install Venture Clad jacketing on insulation outside. See drawings.

C. VALVES, FITTINGS AND OTHER COMPONENTS:

1. MATERIALS: Pre-molded cover of same materials and thickness as pipe covering. 2. EXECUTION: Provide vapor barrier coating consisting of a tack coat of white Foster 30-80AF anti

fungal, vapor barrier coating with reinforcing mesh, finished with a 1/16" thick coating of Foster 30-80AF vapor barrier coating. Coating permeance shall be 0.013 perms or less at 43 mil dry thickness as tested by ASTM E96 and meet ASTM D5590 with 0 growth rating. Finish all joints and seams smooth and even. Reinforcing mesh shall be 10x10 Childers Chil Glas #10 or Foster Mast a Fab. This application shall provide a minimum dry film thickness of 37 mils. Install Venture Clad jacketing on insulation outside. See drawings.

D. KOOLPHEN INSULATION THICKNESS: 2”

END OF SECTION

23 21 13 HVAC Hydronic Piping Page 1 Project 1225 Phase 1

SECTION 23 21 13 – HVAC HYDRONIC PIPING PART 1 - GENERAL 1.1 RELATED DOCUMENTS The General Provisions of the Contract, including General, Supplementary and Special Conditions, apply

to the work specified in this Section. 1.2 GENERAL REQUIREMENTS

A. Construct all piping systems in accordance with applicable ASME Codes. Provide a vent valve at the topmost part and a drain valve at the lowest part of all water piping systems.

B. Piping shall be installed in a neat and orderly manner parallel to building coordinates with vertical drops.

Piping in the vicinity of equipment shall be arranged to not interfere with access panels and maintenance space. Provide unions, flanges and shutoff valves to allow removal of the equipment and its subassemblies without having to remove excessive amounts of building piping or drain water systems. Bull head Tee arrangement is not acceptable.

C. All piping, fittings and valves shall be manufactured in the United States of America.

PART 2 - METHODS 2.1 PIPE SUPPORTS

A. GENERAL: Provide supports of adequate strength for all piping. Piping connected to a piece of equipment shall have a support located near enough to the equipment that there will be no pipe weight supported by the equipment. In no case shall the nearest support be more than two feet horizontally from the connection point. Pipe support material shall be selected to be compatible with the pipe material to prevent galvanic corrosion. The minimum size hanger rod shall be 3/8”.

B. HORIZONTAL PIPING:

1. SUPPORT SPACING: As recommended by support manufacturer, but spaced not more than below: Pipe Size Steel Pipe 6" and Larger 8 Feet

2. SUPPORT FROM ABOVE: Support piping near roof or upper floor from structure if sufficient

strength exists. Use a method suitable for type of construction and of sufficient strength. Use threaded steel hanger rods of diameter required to safely support loads. Install rods through holes drilled in beam flanges, 1½" x 1½" x 8" angles welded to structural members or top cord slot at joist panel points and secure with large washers and nuts. Refer to structural drawing details for additional information. Do not use perforated strap.

3. HANGERS: Manufactured by Grinnell or Tolco or approved equal

a. SINGLE RUNS OF PIPE, NO EXPANSION PROBLEM: Adjustable clevis type Grinnell Figure 260.

23 21 13 HVAC Hydronic Piping Page 2 Project 1225 Phase 1

b. MULTIPLE RUNS: Trapeze hangers. c. BEAM CLAMPS: Grinnell Figure 92 except use Figure 228 for pipes 6” and larger.

4. SUPPORT FROM BELOW: All piping near the floor, or where ceiling structure does not have sufficient strength, or where there is no ceiling shall be supported from below. Support members shall be steel pipe with base plates, or welded steel structure suitably braced.

5. SUPPORT MATERIAL FINISH: Galvanized or cadmium plated steel. Provide solid copper

supports for copper piping, or install gas wrap insulating tape on pipe at support point. 6. PIPE SADDLES: Install 18 gauge, formed galvanized sheets at each support point for insulated pipe,

shaped to fit pipe, and covering bottom half of pipe. Length at saddle shall be not less than twice the insulation outside diameter, 16” minimum length. Provide compressible gasketing between non-insulated plastic pipe and hangers. Provide insulating material between dissimilar metal.

7. TRAPEZE SUPPORTS: Shall consist of unistrut or channel with 3/8” thick or heavier all thread rods

attached to structure. Provide double nuts and cut all tread so no more than 1” extends beyond nut.

2.2 VALVE INSTALLATION

Install in accessible locations, to make possible removal of bonnet and complete servicing of each valve. Do not install valve with stem down

2.3 TESTING PIPING SYSTEMS

A. GENERAL: Test all piping systems to assure that they are absolutely leak free. Pipe to be insulated shall be proved leak free before pipe is concealed.

B. TEST: Subject each piping system to its normal operating pressure and temperature for not less than

twenty-four hours. The piping systems must remain absolutely tight during this period. The satisfactory completion of any test or series of tests will not relieve the contractor of responsibility for ultimate proper and satisfactory operation of piping systems and their accessories. Pipes that will contain water shall be leak tested with water.

2.4 SLEEVES

Provide sleeves for all piping passing through walls, floors not on grade and roof slabs. Make sleeves of galvanized pipe and sized to provide clearance of 1/4" around piping or pipe insulation if pipe is insulated. Set end of sleeve flush with the surrounding surface of wall or ceiling in which sleeve is installed. Floor slab sleeves shall extend 3" above floor level. Provide vented sleeves for all gas piping below floor slabs or paved areas.

2.5 PLATES

Provide chromium plated wall and ceiling plates for all exposed piping, at point piping passes through walls or ceilings. Plates shall be large enough to completely cover pipe sleeves. On insulated piping, inside diameter of plates shall just exceed outside diameter of pipe covering. Plates may be omitted for pipe sizes larger than 6".

2.6 VALVE AND FITTING SIZES

23 21 13 HVAC Hydronic Piping Page 3 Project 1225 Phase 1

All hand valves, fittings and other piping accessories shall be size of the line in which installed unless specifically indicated otherwise on the Drawings.

2.7 DIELECTRIC UNIONS

Provide dielectric insulating unions at all connections between dissimilar metals.

2.8 FITTINGS

A. SCREWED: Conform to ANSI Specification B16.3. B. COPPER: Conform to ANSI Specification B16.22. T-drill fittings are not acceptable. C. WELDED: Install elbow, transition, branch and weld-o-let lateral fittings in welded systems. Mitered or

field fabricated fittings are not acceptable. Flanges shall be weld neck type for sizes 6” and larger pipe. D. SPECIAL: Use long radius ells on all pumped lines.

2.9 VALVES

A. GENERAL: Provide shutoff/balancing valve for each water connection to equipment that is piped to the condenser, chilled or heating water systems. All pressures shown below are minimum working pressures. Provide memory stops for valves used for throttling service. Provide close-off plugs or plates for all valves in dead end service or otherwise opening to the atmosphere (drains, manual vents, future extensions, etc.).

B. BALL VALVE FOR MECHANICAL SYSTEMS: Provide for 2" and smaller pipe: 600 PSI WOG,

bronze threaded, full port, Teflon seat, stainless steel trim, extension stem for insulation. Nibco T-585-70-66(-NS). Ball valves for strainer blow down and drains shall have hose end connection and attached cap. Nibco T-585-70-66-HC. Valves used for air venting may be non-full port type with chrome plated ball. Nibco T-580-70.

C. BUTTERFLY: 2½" and larger, 200# full lug ductile iron type body, stem seals, molded in or renewable

seat, aluminum bronze disc, 416 stainless steel stem, extended neck for insulated lines, notched top plate with handle for throttling. Valves 6" and larger and valves with chain operators, to have enclosed weatherproof gear operator. All valves certified suitable for dead end service with no downstream flange. Nibco LD-2000

D. ACCEPTABLE MANUFACTURERS: Crane, De Zurik, Hammond, Grinnell, Nibco and Stockham or

approved equal

2.10 WATER SPECIALTIES

A. GENERAL: Provide all specialties necessary for proper operation of the water systems. Install manual air vents at all high points on chilled and automatic vents where shown.

B. AUTOMATIC AIR VENTS: Bell & Gossett No. 107A high capacity vent, 150 psi rating, with shut-off

cock, and 1/2" copper tube overflow line extended to a suitable drain point. C. MANUAL AIR VENTS: 1/2” ball valve with plug.

2.11 PIPE WELDING

23 21 13 HVAC Hydronic Piping Page 4 Project 1225 Phase 1

A. GENERAL: All welds shall be made using shielded arc process. Welding shall be performed by

experienced and highly skilled workmen, holding current certification by the National Certified Pipe Welding Bureau or currently certified under the requirements of the ASME Boiler and Pressure Vessel Code, Section IX. Piping and fittings shall be welded and fabricated in accordance with ASME/ANSI the latest edition of Standard B31.9 for all systems. Machine beveling in shop is preferred. Field beveling may be done by flame cutting to recognized standards. Welding process shall ensure complete penetration of deposited metal with base metal. Provide fill metal suitable for use with base metal. Keep inside of fittings free from globules of weld metal. All piping shall have the ends beveled 37-1/2° and joints shall be aligned true before welding. All changes in direction, intersections of lines, reduction in pipe size and the like shall be made with factory fabricated welding fittings. Mitering of pipe to form elbow, mating of straight runs to form tees or similar construction will not be permitted. Do not split, bend, flatten or otherwise damage piping before, during or after installation. Remove dirt, scale or other foreign matter from inside piping before tying in section, fitting, valve or equipment.

B. PASSES: After tack welding sections for alignment purposes, make one welding pass completely around

joint. Make additional passes until the joint is completed. After each pass, wire brush and/or grind weld to remove slag deposits and prepare the surface for additional passes. Schedule 40 pipe shall be welded with no less than three passes, including one stringer/root, one fillet and one lacer. Schedule 80 pipe shall be welded with no less than four passes including one stringer/root, two fillets and one lacer. In all cases, the weld must be filled before the cap weld is added.

C. APPEARANCE: The finished weld shall have no surface voids and present a raised bead at the joint.

Wire brush joint for a finished appearance. D. TESTING: All welds are subject to inspection, visual and/or X-ray, for compliance with the specifications.

The A/E will, at A/E's option, provide employees or employ a testing laboratory for the purposes of performing inspections and/or testing. If X-ray testing finds unacceptable welds, the Contractor shall be responsible for all labor, material and travel expenses involved for the first testing, as well as all re-inspection and testing that may be required to ensure compliance. The Contractor shall be responsible for costs of all additional testing required as recommended by ASME/ANSI Standards B31.9 due to discovery of unacceptable welds. Welds lacking penetration, containing excessive porosity of cracks or are found to be unacceptable for any reason, must be removed and replaced with an original quality weld as specified herein.

2.12 GROOVED PIPING SYSTEM

A. GENERAL: The grooved coupling system may be used at contractor's option, except in all cases provide a sufficient quantity of Victaulic flexible type mechanical couplings in straight pipe runs to compensate for expansion.

B. PIPE: Use only those pipe materials allowed in the Specifications and approved by the coupling

manufacturer for the application. Pipe grooves shall be machine cut for schedule 40 pipe. C. COUPLINGS: Housings shall be ductile or malleable iron constructed to ASTM A-47 or A-536, or forged

steel constructed to ASTM A-106. Coupling gaskets shall be EPDM Grade E for -30° F to 230° F service. Couplings shall be Victaulic Style 77 flexible couplings at first three joints from equipment. Elsewhere use Style 07 for rigid joints or Style 77 for flexible joints.

D. ACCEPTABLE MANUFACTURERS: Gustin Bacon, Grinnell Gruvlok and Victaulic or approved equal

PART 3 - MATERIALS

23 21 13 HVAC Hydronic Piping Page 5 Project 1225 Phase 1

3.1 CHILLED WATER PIPING A. Schedule 40 black steel pipe and fittings, long radius ells, screwed, welded or Victaulic type mechanical

couplings. Piping shall be of domestic manufacture and meet ASTM ERW A-53 Grade B. Provide a sufficient quantity of Victaulic flexible type mechanical couplings in straight pipe runs to compensate for expansion. All bolts, nuts and all thread used in the piping system and components shall be cadmium plated to resist rust. Pipe connections to fan coil units shall be approximately two feet of Type L copper with wrought copper solder fittings braised.

END OF SECTION

23 64 26 Rotary Screw Water Chillers Page 1 Project 1225 Phase 1

SECTION 23 64 26 – AIR COOLED ROTARY SCREW WATER CHILLERS PART 1 - GENERAL 1.1 RELATED DOCUMENTS The General Provisions of the Contract, including General, Supplementary and Special Conditions, apply

to the work specified in this Section. 1.2 SUBMITTALS

A. Provide submittals as outlined in Section 23 00 00 General HVAC

1.3 TRAINING

A. Chiller manufacturer shall, as a part of his proposal, include the cost of training two Owner representatives. B. This training will be hands-on and classroom type training which will pertain to the purchased equipment.

The training should give the trainees the ability to completely tear down and overhaul the purchased equipment. Any and all literature, manual or information which is will be available shall be given to the trainees.

C. This training will be a 2 day training session and shall incorporate the O & M manual for the equipment at

the owner’s facility.

PART 2 - PRODUCTS 2.1 AIR COOLED ROTARY CHILLER

A. GENERAL: Helical rotary type screw compressor, minimum capacity as scheduled on drawings,

including electric motor driven compressor, purge system, electronic expansion valve, control voltage transformer, control system and starter. Unit shall have two completely independent refrigeration circuits. Unit panels, control boxes and structural elements shall be constructed of 12 gauge galvanized steel and mounted on a welded steel structural base. All parts shall be weatherproofed. Control boxes, unit panels and structural elements shall be finished with a baked on powder paint, and the structural base with an air dry paint. Coatings or paint shall withstand 500 hours in salt-spray test per ASTM B117. Insulate chiller vessel, suction elbows, motor and all cold components to prevent condensation. Provide complete refrigerant and oil charge. Unit shall use R-134a refrigerant. Performance shall be ARI certified and meet ASHRAE 90.1 minimum efficiency requirements. Efficiency ratings shall meet the International Energy Conservation Code.

B. COMPRESSOR: Helical rotary screw type, driven by a squirrel cage refrigerant cooled motor. Motor

shall have electronic overheating protection and a power factor of 0.9 or greater. Statically and dynamically balance all rotating parts. Provide a forced feed lubrication system with oil sump, oil charging valve, hermetically sealed motor driven pump, oil filter, thermostatically controlled heater and crankcase heater. Automatic capacity control system to provide continuously variable capacity from 15% to 100% including automatic stop when load falls below 15% and automatic restarting. Provide factory installed, weatherproof, sound reduction compressor enclosure and discharge piping sound reduction wraps.

23 64 26 Rotary Screw Water Chillers Page 2 Project 1225 Phase 1

C. CONDENSER AND FANS: Condenser coils shall have .0055” thick aluminum fins, mechanically bonded to internally finned seamless copper tubing. Provide dipped and baked epoxy coating with UV top coat on condenser coil. The condenser coil shall have an integral sub-cooling circuit and provide oil cooling for the compressor bearing and injection oil. The condenser shall be factor leak tested at 500 psig. The condenser fans shall be vertical discharge direct drive type, with three phase motors, permanently lubricated ball bearings and internal thermal overload protection. Fan assembly shall be statically and dynamically balanced, constructed of zinc coated steel and have sound reduction kits and fan guards. Provide security wire guards around compressor access. Fans shall be ultra quiet design with TEAO motors. Provide unit disconnecting circuit breaker.

D. EVAPORATOR: Shell and finned tube type, designed, constructed, tested and stamped in accordance

with ASME Code for Unfired Pressure Vessels, as applicable. Each tube shall be individually replaceable with tube ends rolled into tube sheets. Unit shall be built for a working pressure on the refrigerant side suitable for the refrigerant used, and for 200 psi on the water side. Provide safety relief valve with discharge piped to a safe point for water and refrigerant systems. Insulate with 3/4” thick flexible elastomeric closed cell insulation R=5 minimum, sealed on outside surface with vinyl lacquer finish. Provide factory mounted heat tape with thermostat to protect the evaporator from freezing at ambient temperatures down to -20°F. Provide water drain connection, vent and fittings for factory installed sensors.

E. CONTROL SYSTEM: All controls shall be housed in weather-tight enclosure with full opening access

door and external lockable operator handle. All controls, including sensors, shall be factory mounted and tested prior to shipment. Control system shall include the following:

1. Unit start-stop switch and operating signal light with provision for automatic start-stop. 2. Internal controls to maintain leaving water temperature. 3. Motor current controller with maximum load selector switch for 40% to 100% full load current to

permit manual control of power demand. 4. Digital readout panel indicating condenser, evaporator, lubricating oil and purge pressures, voltage,

amps. 5. Protective controls with low evaporator temperature, high condenser pressure, high motor

temperature, loss of refrigerant charge and low oil pressure, factory wired to independently stop compressor motor. Each fault type to have associated indicator and manual reset.

6. Anti-recycle timer to limit starting to once every 15 minute or as recommended by manufacturers.

Mount in either control panel or starter. 7. System shall be microprocessor based and designed to accept start-stop, demand limiting and

temperature reset signals from a remote controller or energy management system using dry contact closures and 4-20 ma signals.

8. Microprocessor control shall de-energize unit if there is a momentary interruption of power, or loss

of power that would damage the machine. Unit shall automatically restart when power is available and anti-cycle timer has counted down.

9. Provide a powered 120 volt, ground fault, duplex convenience outlet

F. STARTER: Unit mounted, X-L type, to include the following:

1. Overload protection in all three legs. 2. Phase loss and low voltage protection.

23 64 26 Rotary Screw Water Chillers Page 3 Project 1225 Phase 1

3. Chiller mounted, NEMA 3R cabinet.

G. ISOLATORS Provide factory supplied, minimum 3” load point specific, color coded, encased neoprene isolators

matched to the specific chiller supplied. Provide a minimum of four isolators per side evenly distributed around the perimeter of the unit.

H. SOUND RATINGS

1. Emitted sound pressure shall note exceed 67 dBA as measured from the ends of the unit and 70 dBA at 30 feet from the sides of the unit.

2. Sound power levels shall not exceed specified levels in the listed octave band. 63 Hz 88 dBA 125 Hz 97 dBA 250 Hz 97 dBA 500 Hz 96 dBA 1000 Hz 92 dBA 2000 Hz 90 dBA 4000 Hz 82 dBA 8000 Hz 77 dBA

I. INSPECTION AND TEST: Upon completion of installation, an authorized representative of the manufacturer of the chilling unit shall supervise starting the chilling unit, the piping and the controls, and shall forward to the engineer a letter confirming this inspection and stating approval of the installation. This same representative shall be present at the time of the operational test and shall observe equipment performance.

J. WARRANTY: Provide a one year warranty (parts and labor) for total unit. Provide a four year extended

warranty (second through fifth year) on the motor-compressor-drive assembly for parts and labor, including refrigerant. All replacement parts shall be newly manufactured. For each chiller provide factory certificates listing chiller model, serial number and warranty information in the close out documents.

K. SUBMITTALS: All submittals shall be prepared by the Salesman that calls on the Engineer from the

successful supplier. L. ACCEPTABLE MANUFACTURERS: Carrier and Trane or approved equal

PART 3 - EXECUTION

3.1 Installation shall comply with manufacturer’s requirements and installation details on the Drawings.

3.2 Provide 4” thick concrete pad for each unit. Concrete pads shall be sized for the equipment to be supplied. Pad shall exceed base dimensions by approximately 4" all around. Reinforce pads rebar including #4 bar around perimeter. Tool pad to form chamfered edge.

END OF SECTION