BUILDING AUTOMATION SYSTEM REPLACEMENT

AT VARIOUS SCHOOLS

PROJECT MANUAL

for

Aldine Independent School District

Issued for Proposals June 3, 2013

Proposals Due June 24, 2013

Pre-Bid Conference on June 11, 2013

JSE Consulting Engineers, Inc.

PROJECT MANUAL

TABLE OF CONTENTS

DOCUMENT OR SECTION NO. OF PAGES

NOTICE TO BIDDERS …………………………………………... 00110-1

INSTRUCTIONS TO BIDDERS ………………………………… 00200-1 thru 00200-5

PROPOSAL FORM ………………………………………………. 00430-1 thru 00430-3

GENERAL CONDITIONS ………………………………………. 00700-1

SUPPLEMENTARY GENERAL CONDITIONS ………………. 00800-1 thru 00800-5

SPECIAL CONDITIONS ………………………………………… 00810-1 thru 00810-11

GENERAL REQUIREMENTS .…..………………………………..01000-1

PROJECT CLOSEOUT …………………………………………... 01770-1 thru 01770-2

SPECIFICATIONS

SECTION 23 00 00 GENERAL HVAC 4 PAGES

SECTION 23 07 19 HVAC PIPING INSULATION 2 PAGES

SECTION 23 09 23 DIRECT DIGITAL CONTROLS SYSTEM FOR HVAC 11 PAGES

SECTION 23 09 93 SEQUENCE FOR OPERATIONS FOR HVAC CONTROLS 6 PAGES

SECTION 23 21 13 HVAC HYDRONIC PIPING 3 PAGES

SECTION 23 29 23 VARIABLE SPEED MOTOR CONTROLLERS 2 PAGES

SECTION 26 00 00 GENERAL ELECTRICAL 1 PAGE

SECTION 26 05 00 ELECTRICAL WIRING 5 PAGES

DRAWINGS

M1-P MECHANICAL FLOOR PLAN AT PARKER INTERMEDIATE SCHOOL

M1-R MECHANICAL FLOOR PLAN AT REED ACADEMY

M1-C MECHANICAL FLOOR PLAN AT CONLEY ELEMENTARY SCHOOL

M2-C SCHEDULES, DETAILS AND SCHEMATICS

M1-G MECHANICAL FLOOR PLAN AT GRANTHAM ACADEMY

M2-G SCHEDULES, DETAILS AND SCHEMATICS

M1-H MECHANICAL FLOOR PLAN AT HOFFMAN MIDDLE SCHOOL

M2-H SCHEDULES, DETAILS AND SCHEMATICS

06.03.13

NOTICE TO BIDDERS

Bids will be received for the following project:

BUILDING AUTOMATION SYSTEM REPLACEMENT

AT VARIOUS SCHOOLS

for the

Aldine Independent School District

Sealed bids will be received by the Owner until June 24 at 2:00 P.M. at the following

location:

Conference Room of

Mr. Herbert Harris, Executive Director of Maintenance 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 TITLE

No. 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

“Building Automation System 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 2:00 PM on June 24, 2013, at the Conference Room of the Mr.

Herbert Harris, Executive Director of Maintenance, 14910 Aldine Westfield Road, Harris County,

Texas

1.3 PRE-PROPOSAL CONFERENCE

There will be a Pre-Proposal held on Tuesday June 11, 2013 at 10:00 A.M.. at the Conference

Room of the Mr. Herbert Harris, Executive Director of Maintenance, 14910 Aldine Westfield

Road, Harris County, 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 00430) 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.

00200 - 2

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.

00200 - 3

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:

BUILDING AUTOMATION SYSTEM 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.

00430-2

We attached bid security in the amount of 5% of the amount of our proposal (for amounts

over $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) calendar

days, after written “Notice to Proceed” and substantially compete all work within

calendar days after the written “Notice to Proceed”.

SECTION NO. TITLE ALL VARIOUS

DRAWINGS INCLUDED: M1-P MECHANICAL FLOOR PLAN AT PARKER INTERMEDIATE SCHOOL

M1-R MECHANICAL FLOOR PLAN AT REED INTERMEDIATE SCHOOL

M1-C MECHANICAL FLOOR PLAN AT CONLEY ELEMENTARY SCHOOL

M2-C SCHEDULES, DETAILS AND SCHEMATICS

M1-G MECHANICAL FLOOR PLAN AT GRANTHAM ACADEMY

M2-G SCHEDULES, DETAILS AND SCHEMATICS

M1-H MECHANICAL FLOOR PLAN AT HOFFMAN MIDDLE SCHOOL

M2-H SCHEDULES, DETAILS AND SCHEMATICS

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

We have carefully reviewed and understand the “Notice to Bidders” and the “Instructions to

Bidders”, the drawings and specifications, examined the sites(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 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 construction

and furnish certificates of insurance for Worker’s Compensation in accordance with State

law.

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

00430-3

calendar days after “ Notice To Proceed”.

LUMP SUM BASE BID

BUILDING AUTOMATION SYSTEM 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

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:

Parker Intermediate School

19850 East Hardy Road

Houston, TX 77073

Reed Academy

1616 Lauder Road

Houston, TX 77039

Conley Elementary School

3345 W. Greens Road

Houston, TX 77066

Grantham Academy

13300 Chrisman Road

Houston, TX 77039

Hoffman Middle School

6101 West Little York Road

Houston, TX 77091

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:

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 competition. If the

contractor desires to use material other than that specified, he shall request approval of such

00810-3

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.

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.

00810-4

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.

00810-5

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 A101-2007

2. General Conditions of Contract for Construction

A201-2007

3. Performance Bond A312-2010

4. Payment Bond A312-2010

5. Application and Certificate

for payment G702-1992

6. Change Order G701-2001

7. Certificate of Substantial

Completion G704-2000

8. Contractor’s Affidavit of Payment of

Debts and Claims G706-1994

9. Contractor’s Affidavit of Release

of Liens G706A-1994

10. Consent of Surety to Final Payment G707-1994

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.

00810-6

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.

00810-7

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

00810-8

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 $ 9.25 Heavy Equipment $13.50

Fire Alarm Installer $17.00 Flooring

Carpet Layer $12.00 Flooring Installer $14.71

Glazier $15.00 HVAC Installer/Mechanic $21.12 Insulator

Building $10.49 Mechanical Piping $15.00

Ironwork Rebar $11.44 Structural $16.74

Laborer

00810-9

Unskilled $ 8.08 Skilled $10.89

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

Plumber $19.91

Operator $17.13

Laborer $11.54

Roofer $10.85 Sheet Metal Work

Ductwork $17.84 Roofing $11.25

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

00810-11

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.

END OF SECTION

01000-1

SECTION 01000 - GENERAL REQUIREMENTS

1.01 PROJECT BIDDERS

Qualified Mechanical Contractors shall bid this project as a Prime Contractor and include

electrical and other subcontractors in his bid for a complete project.

1.02 CONTINGENCY

Bidders shall include $2,000 (Two Thousand Dollars) allowance in their bids as Owners

Contingency to cover costs of unforeseen conditions and contract additions as directed by the

Engineer. Any contingency money not used shall be returned to the Owner at the end of the

project by a Change Order.

1.03 CONSTRUCTION TIMELINE

The current timeline is: bids opened on June 24, 2013, Board Approval - July 16, 2013, Letter

of Intent – July 17, 2013 and Subcontract issued by July 19, 2013.

A. August 12th teachers report to school and August 26th is the first day for students.

B. Air conditioning systems must be operational by August 11. Any remaining work must be

performed during not school hours or in a manner as to not disrupt school activities.

1.04 LIQUIDATED DAMAGES

Time is of the essence of the Contract. Contractor acknowledges and agrees that its failure to

have the systems operating by August 25 shall cause damage to the Owner, and further agrees

that the amount of such damage cannot be accurately measured or is difficult to ascertain.

Therefore, contractor agrees that for each and every school day after failure to meet either of

these dates, contractor shall pay to the Owner as Liquidated Damages the sum of $500.00 per

school day. Owner shall have the right to withhold and deduct the amount of such damages

from any money owing by it to the Contractor.

1.05 ASBESTOS

Should the Contractor suspect that any asbestos or asbestos containing material is in the area of

work, he should inform the Engineer in writing. The Owner will provide under a separate

contract, asbestos investigation and abatement.

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 1313

SECTION 23 00 00 - GENERAL HVAC 1.1 RELATED DOCUMENTS

A. 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.

1.3 PERMITS AND FEES

A. 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

A. 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 VISITING THE SITE

A. 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.

1.6 WORKMANSHIP

A. 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

23 00 00 General HVAC Page 2 Project 1313

specifications.

1.7 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.

1.8 REMOVAL OF RUBBISH AND CLEAN-UP

A. 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.

1.9 GENERAL EQUIPMENT REQUIREMENTS

A. Manufacturer's printed directions shall be followed for preparing, assembling, installing, erecting and cleaning manufactured materials or equipment, unless otherwise directed.

1.10 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.

23 00 00 General HVAC Page 3 Project 1313

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. 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:

Temperature Controls VFD’s 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.

1.11 SPARE PARTS LISTS, OPERATING INSTRUCTIONS

A. 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.

1.12 RECORD DRAWINGS

A. 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.

1.13 OWNER'S INSTRUCTIONS

A. Provide the following periods of instruction to the Owner's designated personnel upon completion of the system's installation. Provide additional training as noted in individual equipment specifications.

1. Temperature Controls Systems - 8 Hours

23 00 00 General HVAC Page 4 Project 1313

1.14 SUBSTANTIAL COMPLETION

A. 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.

1.15 DEMOLITION AND REMODELING

A. In areas of demolition, contractor shall remove all HVAC equipment, ductwork, 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 existing systems serve other areas as well, they shall remain active in those areas. Cap,

patch and relocate ducts, piping, etc to keep systems operable. C. Remove and replace ceilings, walls, floors and other finishes as necessary to install or modify

mechanical systems. D. Where ceilings are to be removed or replaced, remove and reinstall diffusers, grilles or other

existing mechanical devices.

END OF SECTION

23 07 19 HVAC Pipe Insulation Page 1 Project 1313

SECTION 23 07 19 – HVAC PIPE INSULATION PART 1 - GENERAL 1.1 RELATED DOCUMENTS

A. 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.

PART 2 - MATERIALS AND METHODS 2.1 CHILLED WATER PIPING

A. GENERAL: Insulate all chilled water piping, valves and fittings where new control valves are installed.

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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. Insulation inside building above ceilings or 7 feet above floor in mechanical rooms may be 2.2 pound per cubic foot density.

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.

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.

D. KOOLPHEN INSULATION THICKNESS:

1. Piping outside or in non-air conditioned spaces inside building shall be 2” thick. 2. Piping inside in conditioned spaces including air handling unit rooms and return air spaces

shall be 1.5” thick.

2.2 BUILDING HEATING WATER PIPING

A. Insulate all hot water piping with factory molded pipe covering made from glass fibers; 2" thick (1½” thick for pipes 1½” and smaller) with density not less than 3 pounds per cubic foot; conductivity (k) not higher than .25 at 100° mean temperature difference; with factory attached fire retardant jacket. Piping insulation outside shall be 1/2“ thicker.

B. Secure all laps and joints with staples at 4" on center. Provide 3" butt strips at each joint between

sections. C. Insulate fittings with pre-molded cover of same materials and thickness as pipe covering.

END OF SECTION

23 09 23 Direct Digital Controls for HVAC Page 1 Project 1313

SECTION 23 09 23 – DIRECT DIGITAL CONTROL SYSTEM FOR HVAC PART 1 - GENERAL 1.1 RELATED DOCUMENTS

A. 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 Acceptable Controls Providers are as follows:

1. Automated Logic – Installed by Automated Logic – Houston (281-837-0777) 2. Reliable Controls – Installed by Unify Energy Solutions (281-447-0777) 3. Approved Equal (approved prior to bidding)

B. Engage the services of one of the qualified temperature control contractors listed above to furnish

and install the temperature control system as specified. The system shall be a Direct Digital Control System. All DDC Temperature Control Modules shall be the product of chosen manufacturer as listed in Paragraph A. All control valves shall be by Barber Colman, Belimo, Bray, Honeywell, Johnson, Robertshaw or Siemens. All modifications to existing systems or total replacement of systems shall operate seamlessly with the existing Automated Logic System and be fully integrated with the existing Aldine controls system website http://webctrl.aldine.k12.tx.us. The new/revised controls system graphics shall appear to be the same as other school systems from the operators standpoint.

C. For this retrofit project all power and control wiring shall be the responsibility of the controls

contractor. Control and interlock wiring, both low-voltage and 120 volts, shall be by the temperature controls Sub-contractor. Interlock wiring between fire alarm system shut down relays and mechanical system starters, VFD’s and temperature controls devices shall be provided by the Temperature Controls Contractor. All wiring shall be run in conduit except plenum rated, low voltage wiring above accessible ceilings may be installed without conduit if installed near structure. All temperature controls wiring shall follow the applicable sections of Division 16 including enclosing low voltage connections install panels or splice boxes. Controls contractor shall provide surge suppression (TVSS) protection for their equipment.

D. The temperature control Sub-contractor shall provide complete control wiring diagrams and

interlock wiring diagrams which have been approved by the Architect and shall provide on-the-job supervision for the wiring installation. The temperature control system and its proper operation shall be guaranteed for a period of one year after substantial completion and any control devices which prove to be defective during the guarantee period shall be repaired or replaced without cost to the Owner. After the initial warranty period, an additional twelve month preventative maintenance contract shall be included in the base price of this Contract. This maintenance contract shall include quarterly preventive maintenance, all repair labor, parts and equipment. The system shall be warranted for parts and labor for a total of two years. Control modules shall be warranted for a period of five years.

E. The temperature control contractor shall furnish six corrected copies of the final control wiring

diagram and a letter stating that he has made final adjustments and instructed the Owner in the system operation at job completion.

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F. Provide 48 hours of instructions over a 3 year period for but not limited to operate interface program, software programming, system diagnostics, hardware installation and repair. No session to be more than 4 hours long with no limit on attendees. Technical support for 3 years over the phone shall be provided at no additional cost to the Owner. The Contractor shall be able to call and diagnose the system from his office.

G. All setpoints, including time, temperature, humidity, pressure and flow, shall be adjustable. H. System shall be capable of transmitting data over fiberoptic cable, being accessed through the

internet and through the schools internal network system via standard web browsers. I. Provide as-built drawings as a part of the online software for the building, that shows the exact

location of all installed equipment. J. Deliver all removed modules to AISD maintenance.

1.3 SCOPE OF WORK

A Parker Intermediate – Controls contractor shall replace all Automated Logic Exec 4 control modules (T-cards, TNI modules, R modules, G modules, and Z540 cards) with new modules of the most up to date type for the applicable scenario and warrant the new modules for a period of 5 years. All old modules will be supplied to Aldine ISD for service stock. All graphics shall be updated to the current graphic scheme and control layout. Complete system shall be checked out, calibrated and shown to be in perfect operating condition. Existing working end devices may be re-used, but any non-working end devices must be replaced. Coordinate with Aldine ISD to provide (1) static IP address dedicated to hosting the BAS System.

1. Remove all (86) T-cards in the school and turn over to Aldine ISD for service stock for other

schools with aging T-cards. 2. Remove all (5) TNI network modules in the school and turn over to Aldine ISD for service

stock for other schools with aging TNI modules. 3. Remove all (6) R683 modules in the school and turn over to Aldine ISD for service stock for

other schools with aging R683 modules. 4. Remove all (2) G modules in the school and turn over to Aldine ISD for service stock for

other schools with aging G modules. 5. Remove all (4) TZ540 modules in the school and turn over to Aldine ISD for service stock for

other schools with aging Z540 modules.

B Reed Academy – Controls contractor shall replace all Automated Logic Exec 4 control modules (T-cards, TNI modules, R modules, G modules, and Z 540 cards) with new modules of the most up to date type for the applicable scenario and warrant the new modules for a period of 5 years. All old modules will be supplied to Aldine ISD for service stock. All graphics shall be updated to the current graphic scheme and control layout. Complete system shall be checked out, calibrated and shown to be in perfect operating condition. Existing working end devices may be re-used, but any non-working end devices must be replaced. Coordinate with Aldine ISD to provide (1) static IP address dedicated to hosting the BAS System.

1. Remove all (85) T-cards in the school and turn over to Aldine ISD for service stock for other

schools with aging T-cards. 2. Remove all (3) TNI network modules in the school and turn over to Aldine ISD for service

stock for other schools with aging TNI modules. 3. Remove all (7) R683 modules in the school and turn over to Aldine ISD for service stock for

other schools with aging R683 modules. 4. Remove all (3) G modules in the school and turn over to Aldine ISD for service stock for

other schools with aging G modules.

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5. Remove all (4) TZ540 modules in the school and turn over to Aldine ISD for service stock for other schools with aging Z540 modules.

C Conley Elementary – Controls contractor shall install a complete building automation system per

this specification, accompanying points list and sequence of operation, and associated drawings. Contractor shall visit site to confirm all equipment and locations. Contractor is responsible for controls of all equipment. Existing G modules and Z540 cards shall be replaced with the most up to date module for the application and returned to Aldine ISD for service stock. All graphics shall

be updated to the current graphic scheme and control layout. Controls contractor shall provide

and install new electronic control valves in place of all currently pneumatic valves. Complete system shall be checked out, calibrated and shown to be in perfect operating condition. Existing working, non-pneumatic end devices may be re-used, but any non-working end devices must be replaced. Coordinate with Aldine ISD to provide (1) static IP address dedicated to hosting the BAS System.

D Grantham Academy – Controls contractor shall install a complete building automation system per

this specification, accompanying points list and sequence of operation, and associated drawings. Contractor shall visit site to confirm all equipment and locations. Contractor is responsible for controls of all equipment. Existing Z540 cards shall be replaced with the most up to date module for the application and returned to Aldine ISD for service stock. All graphics shall be updated to

the current graphic scheme and control layout. Controls contractor shall provide and install new electronic control valves in place of all currently pneumatic valves. Complete system shall be checked out, calibrated and shown to be in perfect operating condition. Existing working, non-pneumatic end devices may be re-used, but any non-working end devices must be replaced. Coordinate with Aldine ISD to provide (1) static IP address dedicated to hosting the BAS System.

E Hoffman Middle – Controls contractor shall install a complete building automation system per this

specification, accompanying points list and sequence of operation, and associated drawings. Contractor shall visit site to confirm all equipment and locations. Contractor is responsible for controls of all equipment. All graphics shall be updated to the current graphic scheme and control

layout. Controls contractor shall provide and install new electronic control valves in place of all currently pneumatic valves. Complete system shall be checked out, calibrated and shown to be in perfect operating condition. Existing working, non-pneumatic end devices may be re-used, but any non-working end devices must be replaced. Coordinate with Aldine ISD to provide (1) static IP address dedicated to hosting the BAS System.

PART 2 - MATERIALS AND METHODS 2.1 INSTALLATION

A. GENERAL

1. Controls contractor shall be responsible for supplying, mounting, and installing all automatic temperature control valve bodies and linkages in Conley, Grantham, and Hoffman. Existing valves and actuators shall be re-used on Parker and Reed.

2. All control dampers shall be existing. Pneumatic damper actuators shall be replaced with electronic.

B. NAMETAGS: Install a plastic tape label identification tag on each control cabinet, to correlate with

the name shown on schematic drawing. Tag may be omitted for device which is obvious, such as a damper operator.

C. SENSOR LOCATIONS: Locations for wall sensors shall be in the same place as existing

sensors.

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2.2 EQUIPMENT

A. TEMPERATURE SENSORS

1. GENERAL: All sensors shall be thermistor type (10K at 77F) with output over the scheduled temperature range.

2. ROOM SENSORS: Flush mounted within a wall box with aluminum cover. Sensing range

shall be 45° to 96° F with an accuracy of .25° F. Mount at +46". 3. OUTDOOR AIR SENSORS: Waterproof with sunshield over sensing element. Sensing

range shall be -30° to 130° F with an accuracy of 1° F. 4. DUCT AIR SENSORS: Duct mounted junction box containing electronics and with minimum

9" long sensing probe. Sensing range shall be 32° to 134° F with an accuracy of 1/2° F. 5. WATER SENSORS: Immersion type, screwed into threaded, pipe weld-o-let. Chilled water

and condenser water sensing range shall be 20° to 120° F with an accuracy of 1/4° F.

Heating water sensing range shall be 80° to 233° F with an accuracy of 3/4° F. B. VALVE AND DAMPER OPERATORS: Belimo, Delta, Siemens or one of the listed valve

manufacturers. C. DAMPERS: Shall be of the opposed blade type with the frame constructed of 16 gage galvanized

sheet steel formed into channels, riveted and corner brackets added to maintain perfect alignment of the damper. In the closed position, all edges of blades must stop against other blades or a fixed stop, in a manner to provide tight shut-off. Provide synthetic elastomer seals on all edges of damper blades. Blades shall consist of two formed sheets spot welded together for extra strength. Square pins shall be used along with oil impregnated sintered bronze bearings. Temperature range of the damper shall be -40° to 200° F. Leakage shall be less than 1/2% based on 2000 FPM approach velocity at 4" w.g. static. Submit certified test data for a typical damper, showing leakage characteristics. Test shall be performed by an independent testing laboratory.

D. TEMPERATURE CONTROL VALVES: Three-way or straight through globe valves or

characterized control valves as applicable shall be installed at Grantham, Hoffman, and Conley. Valves 2" and smaller shall have screwed bronze bodies. Valves 2½" and larger shall have flanged iron bodies. Size all valves for full flow and with a maximum pressure drop of 5 PSI unless specified otherwise. All straight through water valves shall have equal percentage characterized plugs and be capable of shutting off against a minimum of 60 psi.

E. SMOKE DETECTORS: Detectors provided by the fire alarm subcontractor. Controls

subcontractor shall wire the starter control circuit through the smoke detector auxiliary contact. F. FLOW SWITCH: Vapor tight, packless construction with all wetted parts made of brass and

designed for mounting in pipe tee. Paddle to have removable segments to accommodate required pipe size and flow. Switching action: single pole, double throw with a minimum rating of 7 amps at 120 volts. McDonnell Miller Model FS8. Mount switch in horizontal pipe.

G. FREEZESTATS: Low temperature cutout thermostats shall have a 20 foot element with response

to lowest temperature sensed by any 1 foot section. H. ACTIVE FLOW DEVICES: Provide insertion type turbine or paddle wheel flow sensing device.

Unit shall generate not more than 10 pulses per second at 10 FPS flow rate for input directly to

the SCU. Calibrate device for flow rate based on pipe size. Overall accuracy shall be 3% of absolute flow. Install with ball type isolating valve for removal of sensor for servicing. Sensor shall be Data Industrial Model 225B with signal conditioner compatible with the control module.

23 09 23 Direct Digital Controls for HVAC Page 5 Project 1313

I. VAV BOX CONTROLLER: Digital control package with integral damper operator for mounting in box controller housing.

J. DIFFERENTIAL PRESSURE AND PRESSURE SENSORS. Sensors shall have a 4-20 MA output

proportional signal with provisions for field checking. Sensors shall withstand up to 150% of rated pressure, without damaging the device. Accuracy shall be within +2% of full scale. Sensors shall be manufactured by Leeds & Northrup, Setra, Robertshaw, Dwyer Instruments or Rosemont.

K. HIGH STATIC LIMIT SWITCH: Switches shall be diaphragm operated with 3 ½" diaphragm to

actuate a single pole double throw snap switch. Motion of the diaphragm shall be transmitted to the switch button by means of a direct mechanical linkage. It should include a 1.4 - 5.5" w.c. range pressure switch with manual reset snap switch. Dwyer 1900-5-MR.

L. STATIC PRESSURE SENSOR: Provide a differential pressure transmitter with a 4-20 ma and 0-

10VDC output to the BMCS. It shall operate on the capacitance principle and be capable of sensing very low positive, negative or differential pressures. In the capacitance cell, a lightweight diaphragm shall deflect a small amount when pressure is applied. This deflection creates a change in capacitance which is then detected and processed electronically. Modus T-30. Accuracy: +/- 1% of range Ranges: 5.0"/12.5mbar Operating temp range: 32

o to 125

of

Operating humidity range: 20% to 90% rh non-condensing M. WATER DIFFERENTIAL PRESSURE SWITCHES. Pressure switches shall have a repetitive

accuracy of + 2% of range and withstand up to 150% of rated pressure. Sensors shall be diaphragm or bourbon tube design. Switch operation shall be adjustable over the operating pressure range. The switch shall have an application rated Form C, snap-acting, self-wiping contact of platinum alloy, silver alloy, or gold plating. Switches shall be manufactured by Honeywell, Johnson Controls, MCC Powers or Dwyer Instruments.

N FLOW SWITCHES: Flow switches shall have a repetitive accuracy of 1% of their operating range. Switch actuation shall be adjustable over the operating flow range. Switches shall have snap-acting Form C contacts rated for the specific electrical application. Install per manufacturer’s recommendations

O. CURRENT SENSING RELAYS. Relays shall monitor status of motor loads. Switch shall have

self-wiping, snap-acting Form C contacts rated for the application. The setpoint of the contact operation shall be field adjustable.

P. CONTROL RELAYS: Control relay contacts shall be rated for 150% of the loading application,

with self-wiping, snap-acting Form C contacts, enclosed in dust proof enclosure. Relays shall have silver cadmium contacts with a minimum life span rating of one million operations. Relays shall be equipped with coil transient suppression devices.

Q. SOLID STATE RELAYS (SSR): Input/output isolation shall be greater than 10 billion ohms with a

breakdown voltage of 15 V root mean square, or greater, at 60 Hz. The contact operating life shall be 10 million operations or greater. The ambient temperature range of SSRs shall be 20°F-140°F. Input impedance shall be greater than 500 ohms. Relays shall be rated for the application. Operating and release time shall be 10 milliseconds or less. Transient suppression shall be provided as an integral part of the relays.

R. ELECTRIC METER: Provide revenue grade Shark meter for each main switchboard to monitor

phase voltage, phase amps, KW, KVA and power factor. S. MISCELLANEOUS: Provide and install all relays, switches, and all other necessary devices

required for a complete and satisfactory operating system.

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2.3 BUILDING AUTOMATION SYSTEM (BAS)

A. GENERAL CONDITIONS:

1. CONTRACTOR RESPONSIBILITY: The BAS Contractor shall be fully responsibility for the

complete installation and proper operation of the Building Automation System equipment, sensors, controls, and controller. After the installation, the contractor shall be responsible for "debugging" and calibration of the BAS, including software for the duration of the warranty. All equipment shall be the latest standard design that complies with the specification requirements and is manufactured by an acceptable controls manufacturer and installed by an acceptable installer as indicated in Paragraph 1.2. During the warranty period, Contractor shall monitor system from his office and provide assistance to Owner. Should software control schemes provide unsatisfactory operation, as determined by the Engineer, during the warranty period, Contractor shall modify control schemes, setpoints, timing sequences or other software features to provide satisfactory operation as a part of his warranty package.

2. SYSTEM ARCHITECTURE: The system shall possess fully modular architecture that

permits the expansion of the system through the addition of field modules, sensors and actuators. Module communications to be through a local area network (LAN). The central site system shall be used only as an interface to the LAN.

B. GRAPHIC CONSTRUCTION:

1. COLOR VALUE: Space temperature and its deviation from zone setpoint shall be displayed

on a floor plan map by color. These colors shall represent a defined temperature value and be implemented by the same standard throughout the entire system, including all graphic displays and parameter pages. The central site shall be able to display graphically, in up to 64 different colors, the following system information:

a. General area maps shall show locations of controlled buildings in relation to local

landmarks. b. Floor plan maps shall show heating and cooling zones throughout the buildings in a

range of colors which provide a visual display of temperature relative to their respective setpoints. The colors shall be updated automatically without operator action. Set point adjustment and color band displays shall be operator definable through the two button mouse. Floor plan maps shall also show the relative position of sensors and mechanical equipment. Each zone shall display the setpoint temperature and measured temperature.

c. Mechanical system graphics shall show the type of mechanical system components servicing any zone through the use of pictorial representation of components. It shall also provide a current status of all I/O points being controlled and applicable to each piece of equipment including analog readouts in appropriate locations on the graphic representation of the setpoint and measured value.

d. All system graphics shall come programmed and require no owner modification. Individual graphics shall be as minimum the following:

1) Each air handling unit 2) Each zone of multi-zone 3) Each single or double duct mixing box 4) Each chiller 5) Complete chilled water piping system 7) Complete hot water piping system

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2. INFORMATION ACCESS: The following information shall be selectable from a "pop-up" menu available on various graphics: Alarms Schedule graphs Setpoints Point Locking Programming parameters Trends Quit Utilities Schedules Setpoints

Programming, scheduling and setpoint changes shall be accessible for modification of each menu for the associated equipment. Operator shall be able to automatically download changes from the central site to the appropriate program for the equipment being controlled. Operator shall be able to upload information from the field modules to the central site.

C. SPECIFIC GRAPHIC REQUIREMENTS

1. Data Format

Temperature Tenths xx.x ºF Percentage Units xx % Amps Units xx A Humidity Units xx % Air Quantity Units xxxx CFM GPM Units xxx GPM

2. Main School Screen a. Provide an overview of the entire building with color coding of zones based on

temperature relative to setpoint, with light gray indicating zone is off. Green shall be area within setpoint tolerance, and varying shades of light to darker blue for lower than setpoint, and varying shades of light to dark red for higher than setpoint.

b. Clicking on an area of the building will change to a more detailed graphic of that area. c. Provide table listing outside air temperature and RH percentage, and status for Fire

Alarm (if applicable), Emergency Generator (if applicable) and Air Conditioning Emergency Shutdown (if applicable).

d. Provide button to click to go to equipment and mechanical systems graphics. 3. Detailed Area Graphics

a. Individual zones shall be color coded base on temperature relative to setpoint, with light

gray indicating zone is off. Green shall be area within setpoint tolerance, and varying shades of light to darker blue for lower than setpoint, and varying shades of light to dark red for higher than setpoint.

b. Label zone by AHU, AHU and Zone or AHU and VAV Box as applicable with zone temperature listed.

c. Clicking on zone shall transfer to applicable AHU or VAV box. d. Provide button for each AHU serving this area that transfers to the AHU graphic. e. Each piece of equipment shall be labeled and have a text indication whether it is ON,

OFF or FAILED. Additionally, equipment that is on shall have some graphical indication of its status, either by color or animation. Animations shall be observable but not distracting. Status shall be based on equipment status sensors, not condition of the enabling point.

4. Main Equipment Graphic

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a. Provide composite graphic for the chilled waterwater system at the central plant. The off/on condition of each chiller, pump and cooling tower shall be a color coded element of the equipment: gray off, blue on, red failed. Additionally, equipment that is on shall have some graphical indication of its status by animation. Animations shall be observable but not distracting. Status shall be based on equipment status sensors, not condition of the enabling point.

b. Provide composite graphic for the heating water system at the central plant. The off/on condition of each boiler and pump shall be a color coded element of the equipment: gray off, blue on, red failed.

c. Provide buttons for each AHU and RTU that will transfer to the associated graphic. d. Provide buttons for chilled water, condenser water and heating water systems that

transfer to the associated graphic. 5. Chilled Water System Graphic

a. Provide graphic that shows the chilled water system including pumps and chillers.

Chilled water shall be light blue for water returning to the chiller and dark blue for water supplied by the chillers.

b. Each piece of equipment shall be labeled and have a text indication whether it is ON, OFF or FAILED. Additionally, equipment that is on shall have some graphical indication of its status, either by color or animation. Animations shall be observable but not distracting. Status shall be based on equipment status sensors, not condition of the enabling point.

c. Each data point shall be displayed adjacent to a appropriate graphical symbol located in the proper position in the system. Include enable, status, alarm, run amps and % loaded for each chiller.

6. Heating Water System

a. Provide graphic that shows the heating water system including all pumps and boilers.

Heating water shall be light red for return hot water and dark red for supply hot water. b. Each piece of equipment shall be labeled and have a text indication whether it is ON,

OFF or FAILED. Additionally, equipment that is on shall have some graphical indication of its status, either by color or animation. Animations shall be observable but not distracting. Status shall be based on equipment status sensors, not condition of the enabling point.

c. Each data point shall be displayed adjacent to a appropriate graphical symbol located in the proper position in the system. Include enable, alarm and status of each piece of equipment.

7. Air Handling Unit, Rooftop Unit and Fan Coil Unit Graphic

a. Provide graphic that shows all coils, valves and dampers. Outside air and return air

shall be shown. For multizones, include graphic for each zone. b. Each piece of equipment shall be labeled and have a text indication whether it is ON,

OFF or FAILED. Additionally, equipment that is on shall have some graphical indication of its status, either by color or animation. Animations shall be observable but not distracting. Status shall be based on equipment status sensors, not condition of the enabling point.

c. Each data point shall be displayed adjacent to a appropriate graphical symbol located in the proper position on the graphic. Include enable, alarm and status of each piece of equipment.

8. VAV Box

a. Provide individual graphic for each box and equipment.

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b. Provide graphic that shows all coils, valves and dampers. c. Each piece of equipment shall be labeled and have a text indication whether it is ON,

OFF or FAILED. Additionally, equipment that is on shall have some graphical indication of its status, either by color or animation. Animations shall be observable but not distracting. Status shall be based on equipment status sensors, not condition of the enabling point.

d. Each data point shall be displayed adjacent to a appropriate graphical symbol located in the proper position on the graphic.

9. Fans and Unit Heaters

a. Equipment with local/room thermostat shall have graphic noting state of unit and associated space temperature.

b. Fans associated with a particular air handling unit shall be a part of the air handling unit graphic.

10. Main Mechanical Room

a. Provide graphic showing mechanical room fans, unit heaters and purge systems. b. Each piece of equipment shall be labeled and have a text indication whether it is ON,

OFF or FAILED. Additionally, equipment that is on shall have some graphical indication of its status, either by color or animation. Animations shall be observable but not distracting. Status shall be based on equipment status sensors, not condition of the enabling point.

c. Each data point shall be displayed adjacent to a appropriate graphical symbol located in the proper position in the system.

D. STAND-ALONE CONTROL UNIT (SCU):

1. DISTRIBUTED CONTROL: Each control unit shall be capable of full operation either as a

completely independent unit or as a part of the building wide control system. All units shall contain the necessary equipment for direct interface to the sensors and actuators connected to it. Each control module shall be capable of stand-alone direct digital operation utilizing its own processor, memory, input/output, analog-to-digital conversion, clock (rechargeable battery backed for 30 days minimum) and voltage transient protection devices. No slave modules will be permitted.

2. MEMORY: The memory used in each module shall be non-volatile EEPROM type, which

has read/write capability from the central site or local operator interface and does not lose its programs or operating data upon power failure. Power for each module shall be 24 VAC. Each module shall have an automatic restart feature with sequencing after power failure. Module memory shall not require reloading at power up.

3. COMMUNICATION: To share global building data, such as outside air temperature,

humidity and electric demand, modules shall be able to communicate with each other at 76.8 kBps over a local area network (LAN) of 75 ohm coaxial cable or single unshielded 18 gauge twisted pair wire. LAN shall be a standard RS485 Specification. Each module shall be capable of initiating calls to the central site over dial up phone lines using a Hayes compatible autodial/autoanswer modem. Each module shall be capable of communicating through LAN to the central site. Access to the LAN shall be available to the Owner at any point on the network through any module or by direct connection to the communication cable at any point. Communications between modules and communications between module networks and the operators computer terminal shall utilize redundancy checking (CRC) to ensure proper and complete transfer of data. The system shall be capable of recognizing a failed module on the LAN and reporting the condition at the central site. If any module on the LAN fails or is powered down, it shall not inhibit the use of the LAN by other modules. System shall not rely on the school network system to operate.

23 09 23 Direct Digital Controls for HVAC Page 10 Project 1313

E. SCU FUNCTION:

1. CONTROL FORMS: All temperature control functions shall be executed within the SCU.

Loop control shall be executed via direct digital control algorithms. The user shall be able to customize control strategies and sequences of control, and shall be able to define appropriate control loop algorithms and choose any of the following control modes: Two-position (on-off, slow-fast, etc.) Proportional (P) Proportional plus integral (PI) Proportional, integral, plus derivative (PID)

It shall be possible to fully create, modify or remove control algorithms within a specific unit while it is operating and performing other control functions. Input for these changes shall be made via the network form the central site computer or local operator interface. Each control loop shall be fully definable in terms of: Control Action Control Mode Gain Sampling Time Sensors/Actuators

2. ALARMS: Proof of equipment operating and alarm status shall be by positive feedback from

the local control circuit as indicated on the Point List. The system shall have the capability of not only alarming abnormal OFF conditions of fans and pumps but shall also indicate abnormal ON condition of the same equipment. If a start command has not been issued from the central site and a piece of equipment is turned on, the central processor will alarm an abnormal ON. This abnormal ON shall also sound the audible alarm and display the alarm ON condition.

3. GLOBAL INFORMATION: The SCU's shall be able to share point information such that

control sequences or control loops executed at one control unit may receive input signals from sensors connected to other SCU's within the network. If the network communication link fails or the other control units malfunction, the control loop shall continue to function using the last value received.

4. EMS FUNCTIONS: Each SCU shall be capable of performing the following energy

management routines as a minimum: Chilled or Heating Water Reset

Chiller Sequencing and Optimization, Lead/Lag Duty Cycling (Temperature compensated) Event Initiated Programs Graphic Trend Analysis Maintenance Management Peak Demand Limiting Source Optimization Start/Stop Time Optimization Supply Air Reset Time of Day Scheduling

The building operator shall be able to manually restore all system programs from the central site hard disk.

2.4. SEQUENCE OF OPERATION

A. Refer to Section 23 09 93.

23 09 23 Direct Digital Controls for HVAC Page 11 Project 1313

2.5 SUBSTANTIAL COMPLETION

A. 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.

B. Engineer shall have access to the control system graphics via the internet to review and evaluate

control system operation.

END OF SECTION

23 09 93 Sequence of Operation for HVAC Controls Page 1 Project 1313

SECTION 23 09 93 – SEQUENCE OF OPERATION FOR HVAC CONTROLS PART 1 - GENERAL 1.1 RELATED DOCUMENTS

A. The General Provisions of the Contract, including General, Supplementary and Special Conditions, apply to the work specified in this Section.

PART 2 - SEQUENCE OF OPERATION 2.1 GENERAL REQUIREMENTS

A. Energy management system monitors building conditions 24 hours per day. B. Systems with thermostats that control both heating and cooling shall be programmed to have an

operator selectable dead band. Initially set dead band to 5 F. C. Systems controlling chilled water and heating water temperature, and coil leaving air temperature

shall be programmed to have a reset function to reduce the design delta T by 25%. The basis of the reset shall be as described in the specific section.

D. Where air systems are designed to have economizer functions, provide an icon on the main

building graphic that allows the operator to globally disable this function. E. Chiller safety status point shall be wired so that the BAS recognizes all chiller panel alarms,

chilled water proof of flow and condenser water proof of flow regardless of chiller staging. F. Refer to Drawings for additional requirements

2.2 SYSTEM START/STOP: A. Each air handling unit or unitary equipment shall have an individual schedule of operation. If any

equipment requires chilled water for cooling, chiller plant shall operate. If any equipment requires heating water for heating, heating water plant shall operate.

2.3 CHILLED WATER SYSTEM A. The chilled water system shall be activated by a request for cooling from any unit it supplies with

chilled water. The number of cooling requests required and the length of time the requests must be received before activating the plant shall be operator adjustable.

B. Upon a request to run, the lead pump will run. Upon proof of flow, the lead chiller will be enabled.

A flow switch in the chilled water line will not allow the chiller to operate unless flow is proven. If the lead chiller fails to start within 2 minutes (adjustable) the BAS will generate an alarm and automatically start the lag chiller. Once the chiller is enabled, it will operate via its internal operating and safety controls to maintain set leaving water temperature.

23 09 93 Sequence of Operation for HVAC Controls Page 2 Project 1313

C. When the lead system has been energized, the BAS will receive temperature inputs from the sensors mounted in the chilled water supply of each chiller, and the supply and return piping of the building. After 15 minutes (adjustable), if the building chilled water supply temperature rises above 46 degrees F for 15 minutes (adjustable), the BAS will energize the lag system. The lag system will be started and controlled in the same manner as the lead system.

D. When the building chilled water return temperature falls below 49 degrees F (adjustable) for 15

minutes (adjustable), the lag chiller will be shut-down. The associated pump will remain on for 3 minutes (adjustable) after the chiller is de-energized, then the pump will stop.

E. When the chilled water system is inactive, the chillers and pumps will be off, and the isolation

valves closed. If the outside air temperature falls below 40 degrees F (adjustable), the BAS will open both isolation valves and start the lead chilled water pump for low temperature protection.

2.4 HEATING WATER SYSTEM

A. If any air handling unit is on and requesting heat, lead hot water pump is energized, and lead boiler is enabled. Internal boiler controls shall allow system flow through the boiler to maintain

system water temperature set point and limit return water temperature to boiler to 140 F

minimum. System temperature shall be reset so that it is 120F with 60F outside air temperature

and 180F with 20F outside air temperature. Should the boiler be unable to achieve set point by

more than 17F, backup pump and boiler system shall be started. B. When a system pump is de-energized, the associated boiler shall also be de-energized. The

boiler be de-energized after an additional five minutes.

C. If outside air temperature is less than 30F, the heating water system shall start. D. The EMS shall constantly monitor alarm contact provided with the boiler. If boiler should fail to

fire, the lag boiler system shall be started and an alarm sent to the operator’s work station. Boiler lead/lag order shall alternate weekly.

2.5 VAV AIR HANDLING UNIT A. Unit shall be controlled by DDC controller that shall receive start/stop signal from the central

EMS. If the unit is scheduled to be on and cooling is required, fan shall start. Outside air damper

or fan shall start/open to preset position. Chilled water valve shall modulate to maintain 53F supply air temperature. Associated VAV boxes shall be enabled. If building temperature is less

than 65F, associated VAV boxes shall be enabled and heat the building to above 65F before starting AHU fan, opening outside air damper, and enabling chilled water valve. Position of outside air damper shall be limited to prevent outside air/return air mix temperature from dropping

below 50F. B. The control system shall monitor all the VAV box cold air damper positions and adjust the unit fan

speed so that it is no faster than required to have one box at 95% open and all others less open. Duct pressure sensor located in duct shall limit fan speed through variable frequency drive to limit static pressure to 1.5” wc, and send alarm to the operator’s workstation.

C. Any time the outside air/return air mixed temperature falls below 35F, supply fan shall be de-energized, chilled water valve opened, system chilled water pump energized, building heating water pump energized and outside air damper closed.

D. Outside air fan or damper shall close on loss of signal, loss of electric power or when AHU fan is

off.

23 09 93 Sequence of Operation for HVAC Controls Page 3 Project 1313

E. Fire alarm system shall disable fan through starter interlock when in alarm. F. Safety devices and circuits such as low limit thermostats, high limit thermostats, fire alarm

contacts and high pressure cutout shall operate whether the starter is in Auto or Hand position. G. Associated VAV boxes shall maintain zone setpoint temperatures by modulating cold air damper

and sequencing on heating coil valve. Minimum setting of cold valve shall be adjustable with initial set point of 50%. Fan shall run constantly when box is enabled.

2.6 SINGLE ZONE 4-PIPE AIR HANDLING UNITS

A. Unit shall be controlled by DDC controller that shall receive start/stop signal from the central

EMS. Controller shall monitor cooling coil leaving air temperature and modulate chilled water valve to maintain leaving air temperature setpoint. Controller shall monitor space temperature and modulate cooling coil valve and heating valve to maintain space temperature. Cooling coil valve shall drive to full open position on loss of control signal. Heating coil valve shall drive to the full closed position on loss of control signal.

B. Fire alarm system shall disable fan through starter interlock when in alarm. C. Safety devices and circuits such as low limit thermostats, high limit thermostats, fire alarm

contacts and high pressure cutout shall operate whether the starter is in Auto or Hand position.

2.7 MULTIZONE ROOFTOP UNITS

A. Unit shall be controlled by DDC controller that shall receive start/stop signal from the central

EMS. Controller shall stage DX cooling coil to maintain cooling coil leaving air temperature. Cooling coil valve shall stage up on loss of control signal. Controller shall modulate heating coil control valve to maintain heating coil leaving air temperature. Heating coil valve shall drive to the full closed position on loss of control signal.

B. For each zone, DDC controller shall modulate zone mixing damper based on wall mounted space

temperature sensor C. Fire alarm system shall disable fan through starter interlock when in alarm, and send alarm to the

operator’s workstation. D. Safety devices and circuits such as low limit thermostats, high limit thermostats, fire alarm

contacts and high pressure cutout shall operate whether the starter is in Auto or Hand position.

2.8 SINGLE ZONE DX AIR HANDLING UNITS / ROOFTOP DX UNITS

A. Unit shall be controlled by DDC controller that shall receive start/stop signal from the central

EMS. Controller shall monitor space temperature and cycle cooling in stages, and heating to maintain space temperature.

B. Fire alarm system shall disable fan through starter interlock when in alarm, and send alarm to the

operator’s workstation. C. Safety devices and circuits such as low limit thermostats, high limit thermostats, fire alarm

contacts and high pressure cutout shall operate whether the starter is in Auto or Hand position.

23 09 93 Sequence of Operation for HVAC Controls Page 4 Project 1313

2.9 FAN COIL UNITS

A. Unit shall be controlled by field mounted DDC controller that shall receive start/stop signal from

the central EMS. Controller shall monitor space temperature and modulate cooling and heating

valves to maintain a space temperature of 74 F. Cooling go into full cool on loss of control signal. Heating shall be in no heat position on loss of control signal.

2.10 UNIT HEATERS

A. Start/stop by schedule. DDC controller monitors space temperature and cycles to maintain space

temperature.

2.11 EMERGENCY SHUTDOWN

A. Provide an emergency shutdown switch in the administration area that stops all controlled air

conditioning equipment in an orderly fashion. Air handling units, chillers and equipment shall be shut down in an orderly manner so as to not damage the equipment. Once stopped, the system may only be restarted with a key operated switch located adjacent to the shutdown switch.

2.12 TEMPERATURE SETPOINTS

Room Temperature 72 F

Chilled Water Temperature 44 F Heating Water Temperature Reset Schedule

VAV Air Unit Leaving Air Temperature 53 F

Single Zone Face & Bypass Cooling Coil Leaving Air Temperature 53 F

Multizone Chilled Water Coil Leaving Air Temperature 53 F

Multizone Heating Water Coil Leaving Air Temperature 95 F Humidity Sensors 55% Duct Pressure Control Level 1.5” wg Duct Pressure Safety Limit 5.0” wg

2.13 POINT CONFIGURATION

EQUIPMENT CONTROL FORM CHILLER MANAGER PROGRAM: BUILDING CHW SUPPLY TEMP READING BUILDING CHW RETURN TEMP READING TEMPERATURE HIGH LIMIT ALARM POINT TEMPERATURE LOW LIMIT ALARM POINT EACH CHILLER: CHILLER ENABLE/DISABLE ENERGIZE CHILLER STATUS DATA POINT CHILLED WATER PUMP RUN ENERGIZE CHILLED WATER PUMP STATUS DATA POINT CHILLED WATER SUPPLY TEMP READING CHILLED WATER RETURN TEMP READING

23 09 93 Sequence of Operation for HVAC Controls Page 5 Project 1313

CHILLED WATER RESET MODULATING CONTROL CHILLED WATER TEMPERATURE HIGH LIMIT ALARM POINT CHILLED WATER TEMPERATURE LOW LIMIT ALARM POINT CHILLER SAFETY STATUS DATA POINT CHILLER OPERATING LOAD DATA POINT RUN TIME REPORT POINT BOILER MANAGEMENT PROGRAM: HOT WATER PUMP RUN ENERGIZE HOT WATER PUMP STATUS ALARM POINT EACH BOILER ENABLE/DISABLE ENERGIZE EACH BOILER STATUS DATA POINT BUILDING HEATING WATER SUPPLY TEMP READING BUILDING HEATING WATER RETURN TEMP READING MIXING VALVE (IF APPLICABLE) MODULATING HOT WATER TEMPERATURE HIGH LIMIT ALARM POINT HOT WATER TEMPERATURE LOW LIMIT ALARM POINT EACH MULTIZONE RTU: FAN RUN ENERGIZE FAN STATUS DATA POINT DX COOLING ENERGIZE COOLING COIL DISCHARGE AIR TEMP READING HEATING WATER VALVE MODULATING CONTROL HEATING WATER COIL DISCHARGE AIR TEMP READING ENTERING AIR TEMPERATURE TEMP READING EQUIPMENT FAILURE STATUS ALARM POINT ZONE SENSOR TEMP READING ZONE MIXING DAMPERS MODULATING CONTROL EACH SINGLE ZONE AIR HANDLING UNIT: FAN RUN ENERGIZE FAN STATUS DATA POINT CHILLED WATER VALVE MODULATING CONTROL CW DISCHARGE AIR TEMPERATURE TEMP READING HEATING WATER VALVE MODULATING CONTROL SUPPLY AIR TEMPERATURE TEMP READING ZONE TEMPERATURE TEMP READING ENTERING AIR TEMPERATURE TEMP READING OUTSIDE AIR DAMPER OPEN/CLOSE EACH VARIABLE VOLUME AIR HANDLING UNIT: FAN RUN ENERGIZE FAN STATUS DATA POINT VARIABLE FREQUENCY DRIVE MODULATING CONTROL DUCT STATIC PRESSURE PRESSURE READING HIGH-STATIC PRESSURE CUTOUT PRESSURE READING CHILLED WATER VALVE MODULATING CONTROL COIL DISCHARGE AIR TEMPERATURE TEMP READING FREEZESTAT TEMP READING OUTSIDE AIR DAMPER OPEN/CLOSE EACH VAV TERMINAL: FAN RUN (IF APPLICABLE) ENERGIZE ZONE TEMPERATURE TEMP READING

23 09 93 Sequence of Operation for HVAC Controls Page 6 Project 1313

SUPPLY AIR TEMPERATURE TEMP READING PRIMARY AIR QUANTITY FLOW READING PRIMARY AIR VALVE MODULATING CONTROL HEATING COIL VALVE MODULATING CONTROL MAXIMUM PRIMARY AIR SETPOINT SETPOINT MINIMUM PRIMARY AIR SETPOINT SETPOINT EACH FAN COIL UNIT: FAN RUN ENERGIZE FAN STATUS DATA POINT CHILLED WATER VALVE MODULATING CONTROL HEATING WATER VALVE (IF APPLICABLE) MODULATING CONTROL ZONE TEMPERATURE TEMP READING ZONE SUPPLY AIR TEMPERATURE TEMP READING OUTSIDE AIR DAMPER (IF APPLICABLE) OPEN/CLOSE EACH DX ROOFTOP UNIT: FAN RUN ENERGIZE FAN STATUS DATA POINT EQUIPMENT FAILURE STATUS ALARM POINT DX COOLING ENERGIZE ELECTRIC HEATING ENERGIZE DISCHARGE AIR TEMPERATURE TEMP READING SPACE TEMPERATURE TEMP READING UNIT HEATER: START/STOP ENERGIZE ZONE TEMPERATURE TEMP READING DOMESTIC HOT WATER HEATER: START/STOP ENERGIZE SUPPLY WATER TEMPERATURE TEMP READING RUN TIME REPORT POINT MISCELLANEOUS: HVAC EMERGENCY SHUTDOWN ENERGIZE OUTDOOR AIR TEMP READING KITCHEN WALK-IN COOLER TEMP READING KITCHEN WALK-IN FREEZER TEMP READING ELECTRICAL POWER METER KWH INPUT OUTDOOR LIGHTING CONTROL POINTS

END OF SECTION

23 21 13 HVAC Hydronic Piping Page 1 Project 1313

SECTION 23 21 13 – HVAC HYDRONIC PIPING PART 1 - GENERAL 1.1 RELATED DOCUMENTS

A. 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. B. Piping shall be installed in a neat and orderly manner. 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.

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 Other Pipe 1" & Smaller 6 Feet 4 Feet 1¼" & 1½" 8 Feet 5 Feet 2" 8 Feet 5 Feet 2½" to 4" 8 Feet 6 Feet 6" and Larger 8 Feet 6 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.

23 21 13 HVAC Hydronic Piping Page 2 Project 1313

4. 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. 5. 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.

2.2 VALVE INSTALLATION

A. 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. Architect shall be notified when testing is performed so that the Engineer and/or Owner may observe and certify the results.

B. PRESSURE TEST METHOD: Use method suitable for type of piping system being tested. For

pressure pipe, use a test pressure approximately 150% of maximum system working pressure but at a minimum pressure of 60 psig. The minimum test pressure for chilled water and heating water shall be 125 psig. Maintain pressure for 8 hours. During this test period, inspect all pipe fittings and accessories in the piping and eliminate all leaks.

C. FINAL 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 VALVE AND FITTING SIZES

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

2.5 DIELECTRIC UNIONS

A. Provide dielectric insulating unions at all connections between dissimilar metals.

2.6 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.

23 21 13 HVAC Hydronic Piping Page 3 Project 1313

D. SPECIAL: Use long radius ells on all pumped lines.

2.7 VALVES

A. GENERAL: Replace shutoff valves at control valves that do not provide proper shutoff due to corrosion or other failure.

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. GATE VALVE FOR MECHANICAL SYSTEMS: Provide for steel pipe 2½" and larger only: 125#

iron body, bronze fitted, flanged, bolted bonnet, solid wedge, OS&Y. Nibco F-617-0. D. ACCEPTABLE MANUFACTURERS: Crane, De Zurik, Hammond, Grinnell, Nibco and Stockham

2.8 STRAINERS

A. STRAINERS: Iron body, Y pattern basket type, line size, not more than 2 PSIG pressure drop, 20 mesh Monel screen unless indicated otherwise. Provide ball valve with end plug for blow-off on strainers. Chilled and hot water strainer baskets to have 1/16" perforations.

B. ACCEPTABLE MANUFACTURERS: Keckley and Taco

PART 3 - MATERIALS 3.1 CHILLED AND BUILDING HEATING 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 29 23 Variable Speed Motor Controllers Page 1 Project 1313

SECTION 23 29 23 – VARIABLE SPEED MOTOR CONTROLLERS PART 1 - GENERAL 1.1 RELATED DOCUMENTS

A. 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

PART 2 - PRODUCTS 2.1 VARIABLE SPEED MOTOR CONTROLLER

A. GENERAL: Controller shall be a microprocessor controlled, adjustable frequency motor controller consisting of a sine-coded, pulse width modulated output inverter suitable for specified size and voltage motors listed on the Drawings. Unit shall be U. L. Listed as a complete package and comply with the applicable ANSI, IEEE and NEMA Standards as well as the National Electrical Code. Inverter shall be grounded and line, load, control and fire/safety wiring shall be installed in separate conduits.

B. FEATURES:

1. NEMA 1, wall mounted enclosures except provide NEMA 12 enclosures in chiller or boiler rooms.

2. Panel mounted start-stop control as well as 0-10 VDC and 4-20 ma interface to standard energy management systems.

3. Field adjustable acceleration and deceleration times. 4. 0-67 Hz controlled speed range with adjustable maximum and minimum stops. 5. Safe shutdown and immediate restart after a power outage. 6. Two contactor style, three leg manual bypass contactors with H-O-A switch and lockable

disconnect. Bypass section shall be in a separate enclosure from the inverter and circuited to allow operation with all power disconnected from the inverter section. Protective controls shall operate in both normal and by-pass modes.

7. Digital keypad with LCD screen for entry of set points 8. 3% input (line) reactors and DC Bus filtered chokes matched to motor size to reduce

harmonics emitted to electrical system and limit voltage spikes to motor and drive. 9. MOV’s for transient voltage protection 10. Unit shall operate normally with input up to 30% over voltage and 35% under voltage 11. Provide 115 volt control transformer to interface with vibration switches and other control

devices. 12. Inherent power factor correction to .95.

C. PROTECTIVE CONTROLS (both automatic and bypass):

1. Overvoltage and undervoltage. 2. Ground fault. 3. Phase loss or failure.

23 29 23 Variable Speed Motor Controllers Page 2 Project 1313

D. NAMEPLATES: Identify each VFD with an engraved lamacoid nameplate (5/16" high letters)

showing load served and the maximum horsepower rating. Attach with mastic and two screws. E. STARTUP: A factory trained service technician shall startup and test each drive. Technician shall

contact Engineer prior to startup to obtain special settings that may be required for primary pumps, cooling tower and other equipment. Technician shall also operate drive through the frequency range and note any frequencies that cause resonance with the associated equipment. If directed by the engineer, lockout or skip those frequencies.

F. SUBMITTALS: Provide complete information to confirm compliance. Also provide certified noise

data showing that the drive does not exceed preferred “RC” as listed in 1995 ASHRAE HVAC Applications, Chapter 43 Sound and Vibration Control, Table 2 Criteria for Acceptable HVAC Noise in Unoccupied Rooms.

G. ACCEPTABLE MANUFACTURES: ABB, Danfoss-Graham Yaskawa

PART 3 - EXECUTION

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

Drawings.

END OF SECTION

26 00 00 General Electrical Page 1 Project 1313

SECTION 26 00 00 - GENERAL ELECTRICAL PART 1 - GENERAL 1.1 RELATED DOCUMENTS

A. 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. Provide all supervision, labor, equipment and materials required for the installation of complete and operating electrical systems required for the temperature controls revisions. Pay all fees and obtain all permits related to construction activities and utility service installation.

1.3 GUARANTEE

A. 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.

1.4 CODES

A. All materials and their installation shall be in accordance with the National Electrical Code, local building codes and the National Safety Code. Nothing in the plans and specifications shall be construed to permit work not conforming to the most stringent of the codes. Particular attention shall be paid to the U. L. codes for fireproofing of conduit, electrical devices and light fixtures that are part of or pass through fire rated ceilings, walls and floors.

1.5 VISITING THE SITE

A. 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.

1.6 GENERAL REQUIREMENTS FOR ALL MATERIALS

A. Provide all parts and accessories necessary for equipment and complete installation. B. All materials must be new and of good quality and shall bear the stamp of approval of the

Underwriters' Laboratories, Inc. (U. L.).

1.7 SUBMITTALS A. Not required.

END OF SECTION

26 05 00 Electrical Wiring Page 1 Project 1313

SECTION 26 05 00 - ELECTRICAL WIRING PART 1 - GENERAL 1.1 RELATED DOCUMENTS

A. The General Provisions of the Contract, including General, Supplementary and Special Conditions, apply to the work specified in this Section.

1.2 GENERAL INSTALLATION REQUIREMENTS

A. All electrical work dealing with electrical circuits or power requirements of 50 volts or higher shall

be performed by a licensed journeyman electrician supervised by an on site master electrician. B. Provide grounding bushings for all connections at concentric and eccentric knockouts, and where

reducing washers are used.

PART 2 - MATERIALS AND METHODS 2.1 RACEWAY SYSTEMS

A. REQUIRED: Complete raceway systems for all wiring new 120 volt or higher wiring associated with the Temperature Controls System.

B. RACEWAY CAPACITY: It shall be the Contractor's responsibility to determine the correct sizes of

all types of raceway, to be installed, as instructed in the NEC and all applicable Codes. C. INSTALLATION:

1. LOCATION: Conceal all raceway systems in ceilings, walls and floors, except feeders serving equipment in mechanical and electrical equipment rooms, and in such other areas as indicated where conduit may be exposed. Keep at least 8" away from any heat producing items.

2. ROUTING: Conduit shall be installed parallel to building coordinates, except for

underground feeders from panel to panel may be installed in the most direct manner. Install all horizontal conduit at structure unless mounted to a wall.

3. EXPOSED RACEWAY: Run parallel to walls, ceiling or structural members, in a manner to

present a neat appearance. Before installation, explain to the Inspector the proposed method of routing and obtain his approval. Hold all horizontal conduit at ceiling or structure, unless mounted on wall.

4. SUPPORT: Provide adequate and sturdy support for all parts of raceway system. Conduit

concealed in walls or slabs may be supported with wire hangers, provided they are of heavy gage and spaced to give adequate strength. Exposed conduit must be supported with materials specifically made for this purpose; do not use wire hangers. Do not attach any parts of raceway system to air conditioning ducts or ceiling systems.

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5. CONTINUITY: Make all joints and connections in a manner which will insure mechanical strength and electrical continuity. Use double locknuts and insulated bushings for rigid conduit, and insulated type connectors for EMT conduit 1” and larger for connections to boxes. Use insulated grounding bushings wherever connection is subject to vibration or moisture, such as near mechanical equipment, when internal ground wire is installed, and when concentric or eccentric knockouts are encountered, as well as where reducing washers are used.

6. PULL BOX LOCATIONS: As required by the National Electrical Code. 7. FIRE PROOFING: All power and telephone raceway components passing through or

installed within U. L. fire rated walls, ceiling or floor structures shall be fireproofed in the manner prescribed by the U. L. Fire Resistive Index and local building codes. All penetrations shall be fireproofed with 3M Fire Barrier CP25WB caulk, moldable putty or FS-195 wrap/strip installed per the manufacturer's recommendations.

8. MARKING: All junction and pull boxes shall be marked noting electrical circuits contained.

Additionally, boxes containing emergency or exit circuits shall have covers painted red. Boxes containing normal high voltage circuits shall have covers painted yellow. Boxes containing normal low voltage circuits shall have covers painted blue. Paint colors shall be light enough to ensure that the circuit numbers can be easily distinguished.

9. SEALING: All conduit, junction box, outlet box and other penetrations of the building

envelop shall be sealed with non-hardening caulking or other non-hardening material as required by the International Energy Conservation Code.

D. MANUFACTURERS: All components of raceway systems must be made in U.S.A. and bear U. L.

label.

2.2 CONDUIT

A. CONDUIT TYPES

1. RIGID GALVANIZED STEEL – Threaded fittings 2. EMT – Steel conduit with steel diecast watertight fittings 3. FLEXIBLE METAL CONDUIT – Greenfield, galvanized steel conduit for field installation of

conductors 4. LIQUID TIGHT FLEXIBLE METAL CONDUIT – SealTite Type UA galvanized steel conduit

with PVC waterproof coating for field installation of conductors

B. TYPE OF CONDUIT FOR VARIOUS LOCATIONS:

1. INSIDE OF BUILDING IN CEILING CAVITIES, IN EXPOSED FLOOR OR ROOF STRUCTURE AREAS, OR IN DRY WALL TYPE CONSTRUCTION: Galvanized steel EMT or rigid galvanized steel.

C. MINIMUM CONDUIT SIZE: 1/2" D. FITTINGS:

1. RIGID CONDUIT: All rigid galvanized steel conduit shall have threaded fittings with insulated bushings.

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2. EMT CONDUIT: Provide insulated bushings for all EMT conduit 1" or larger or housing #6

or larger wires. 3. GROUNDING: Provide fitting with grounding lug where conduit attaches to a painted box

(disconnect switch, starter, transformer case, etc), conduit attaches to a box through a knockout which has an associated larger knockout or a reducing washer is used, or conduit contains a feeder from switchgear to switchgear or between switchgear and transformer.

2.3 PULL BOXES

A. REQUIRED: Pull boxes, junction boxes, wiring troughs and cabinets wherever required for proper installation of various electrical systems.

B. CONSTRUCTION: Made of code gage steel with sides formed and welded, screw covers unless

shown to have hinged doors. Hinged doors to be same as furnished on panel boards, with same locking device. Knockouts shall be factory made or formed in field with a cutting tool which will provide a clean, symmetrically cut hole. Do not gang boxes or use extension rings to increase capacity.

2.4 OUTLET BOXES

A. REQUIRED: For all switches, light fixtures, receptacles and the various other outlets shown. B. CONSTRUCTION: Galvanized steel, one piece construction, in all cases suitable for intended

use. Provide "gang" boxes where devices are shown grouped. Use hot dipped galvanized cast iron for floors or exterior locations.

C. TYPES FOR VARIOUS LOCATIONS:

1. CEILINGS: 4" square, 2-1/8" deep. 2. DRY WALLS: 4" square, 2-1/8" deep standard galvanized switch box. Provide shallow

boxes where necessary. Provide tab to align box with studs.

D. MOUNTING PLATES: Boxes mounted in drywall construction shall have extension plates matched to wall thickness so the box can be mounted flush with the metal stud and the wiring device mounts flush with the wall.

2.5 CONDUCTORS

A. REQUIRED: A complete system of conductors in all raceway systems. B. BUILDING WIRE: 600 Volt, soft drawn annealed copper, 98% conductivity, continuous from

outlet to outlet. Minimum wire size #12 except remote control wire may be #14. All wire shall be

stranded Type THHN, THW-2 or THWN-2 (wet rated for 90 C). All wires shall be color coded with same color connected to same ungrounded phase throughout the installation.

C. MANUFACTURERS: Cerro, Encore, Republic, Triangle, Southwire Co. and United D. CONNECTORS: Make all connections on #10 and smaller wire with Code approved solderless

pressure type insulated connectors; Ideal Wingnut. Solderless lugs must be used for all terminations.

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E. TEST: After installation of all conductors, and before final acceptance, make such tests as are

required to determine proper functioning of all circuits. Furnish all necessary instruments required to make such tests and correct any deficiencies found.

2.6 CONNECTIONS TO MOTORS, EQUIPMENT AND DEVICES

A. POWER WIRING: Make wiring connections to all mechanical, plumbing and other equipment being installed as a part of this Contract.

B. CONNECTIONS TO EQUIPMENT: Make connection to each motor and to each piece of

equipment subject to vibration with not less than 18" nor more than 24” of flexible conduit. All horizontal runs of conduit (not strapped to walls) must be kept above 7 feet high, with a vertical drop to equipment. Conduit blocking walk and service space is not acceptable and will require relocation. Conduit on and adjacent to equipment must be located to allow free access to all removable panels for equipment service. Wire adjacent to heat producing equipment, such as boilers and electric heaters, must be of a type approved for this use.

2.7 CIRCUITRY

A. The intent of the drawings is to indicate schematically the circuitry required. B. 20 amp, single phase branch circuits serving lighting and general receptacles may be grouped in

a single raceway provided a neutral conductor is installed for each circuit requiring a neutral. Do not install more than four current carrying conductors in a conduit. Do not install 480/277 volt conductors in the same conduit with 208/120 volt conductors.

C. The work performed in grouping conductors in a single raceway shall comply with all applicable

articles in the latest edition of the NEC and Local Codes which shall include, but shall not be limited to, ampacity de-rating of conductors and maximum capacities of raceways.

2.8 POWER CONDUCTOR COLOR CODING

A. 480/277 VOLT SYSTEM: Conductors shall have insulation of the proper color as listed below: Phase A - Brown Phase B - Purple Phase C - Yellow Neutral - Natural Gray Ground - Green Isolated Ground - Green w/yellow stripe B. 208Y/120 VOLT SYSTEMS: Conductors shall have insulation of the proper color as listed below: Phase A - Black Phase B - Red Phase C - Blue Neutral - White Ground - Green Isolated Ground - Green w/yellow stripe C. 240/120 VOLT DELTA SYSTEMS

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Phase A - Black Phase B - Orange (high leg of delta) Phase C - Blue Neutral - White w/colored stripe Ground - Green Isolated Ground - Green w/yellow stripe D. Contractor may use colored tape marking for size 8 and larger phase and neutral conductors, and

size 4 and larger ground conductors. E. Switch legs are to be color coded the same as the un-switched phase, i.e., all wiring from lighting

control panels and contactors shall retain the phase color. F. If existing construction has a consistent but different color coding, match existing.

END OF SECTION