Metropolitan Washington Airports Authority PROCUREMENT … · 07/25/2016 omk lml rmn. chw plant lower level power plan - new work. hfm krs dmg. el04.0001. chw plant lower level power

Metropolitan Washington Airports Authority

PROCUREMENT AND CONTRACTS DEPT. AMENDMENT OF SOLICITATION

PAGE 1

Metropolitan Washington Airports Authority Procurement and Contracts Dept., MA-440 1 Aviation Circle, Suite 154 Washington, DC 20001-6000

Telephone: (703) 417-8660

1A. AMENDMENT OF SOLICITATION NO. 1B. DATED

1-17-C004 October 28, 2016 2A. AMENDMENT NO. 2B. EFFECTIVE DATE

Three (003) December 5, 2016

The solicitation identified in Block 1A is amended as set forth in Block 3. Hour and date specified for receipt of offers is extended, is not extended. Offerors must acknowledge receipt of this amendment prior to the hour and dated specified in the solicitation or as amended, by

one of the following methods: (a) by completing Block 4 and returning copy of the amendment; (b) by acknowledging receipt of this amendment on the Solicitation Offer and Award Sheet, Block 13. FAILURE OF YOUR ACKNOWLEDGMENT TO BE RECEIVED AT THE PLACE DESIGNATED FOR THE RECEIPT OF OFFERS PRIOR TO THE HOUR AND DATE SPECIFIED MAY RESULT IN REJECTION OF YOUR OFFER.

3. DESCRIPTION OF AMENDMENT Solicitation 1-17-C004 entitled “Task 02 – Central Utility Plant Modifications at Ronald Reagan Washington National Airport” is hereby amended as follows: IFB Section VII, paragraph 44, Performance of Work by the Contractor, change the words “at least forty percent (40%) of the total direct labor and at least forty percent (40%) of the total work-in-place” to read “at least thirty percent (30%) of the total direct labor and at least thirty percent (30%) of the total work-in-place”. Replace Exhibit C with the attached revised Exhibit C. See Attachment No. 1. Attachment No. 1 changes include minor revisions to the chiller specification, revisions to the chiller starter (drawings and specifications), and minor revisions in response to RFIs received during the bid period. The bid due date remains at December 08, 2016.

Except as provided herein, all terms and conditions of the document referenced in Block 1A, as heretofore changed, remain unchanged and in full force and effect. 4A. NAME AND TITLE OF OFFEROR 4B. SIGNATURE 4C. DATE

MWAA Form PR-06 (Rev. 1/2003)

Exhibit C – Revised – Amendment Three

Local Disadvantaged Business Enterprise (LDBE) Size Standards for Solicitation 1-17-C004

NAICS Code Type Of Work / Service LDBE Size Standard

236220 Commercial and Industrial Building Construction

$36.5 Million

238110 Poured Concrete Foundation & Structure Contractors

$15.0 Million

238120 Structural Steel & Precast Concrete Contractors

$15.0 Million

238210 Electrical Contractors & Other Wiring Installation Contractors

$15.0 Million

238220 Plumbing, Heating & Air- Conditioning Contractors

$15.0 Million

238910 Site Preparation Contractors $15.0 Million

For the purposes of this solicitation, only firms certified by the Metropolitan Washington Airports Authority’s LDBE Program may be utilized for LDBE participation. The directory of currently certified LDBE firms is available on the Airports Authority’s website at http://www.mwaa.com/contracting. (Click on “LDBE/DBE Directory Search”.) To be considered an LDBE, a business firm’s average annual gross receipts (AGR) or average number of employees (ANE) for the last three (3) years cannot exceed the applicable LDBE size standard. AGR or ANE of all affiliates of the firm are included when determining the firm’s eligibility for LDBE certification. Firms will only be certified as an LDBE for services or goods that they are able to provide at the time of LDBE certification and for which they do not exceed the applicable LDBE size standard, as noted above. An LDBE firm adding services or goods during the term of its certification may request the Authority’s Equal Opportunity Programs Department to amend the LDBE certification to include these new services or goods, provided the firm also meets the applicable LDBE size standards for these new services or goods. Your firm must be certified for the work you plan to perform or for the goods you plan to manufacture or supply on this contract. There may be other NAICS codes approved for this project. If this list does not include an LDBE NAICS code and size standard for work that you anticipate may be needed for this project, you must request it through the Contracting Officer. The Authority will review your request. If the NAICS code is accepted for this solicitation, the change will be formally communicated in an amendment to the solicitation. Contact the Authority’s Department of Supplier Diversity at 703-417-8625 for questions on LDBE certification requirements.

Task 02 – Central Utility Plant Modifications Ronald Reagan Washington National Airport

AMENDMENT NO. 3 ATTACHMENT NO. 1

(NOVEMBER 23, 2016)

Page 1 AMENDMENT NO. 3 ATTACHMENT NO. 1RMF No. 114019.B0

1. DESCRIPTION OF AMENDMENT:

This Addendum contains changes to the requirements of the Contract Documents and Specifications.Changes include minor revisions to the chiller specification, revisions to the chiller starter (drawings andspecifications), and minor revisions in response to RFIs during the bid period. Drawing and specificationchanges are outlined below.

2. DRAWING REVISIONS:

1. GN01.0001:

a. Update drawing index to reflect added drawing EL06.0010 and updated recent revisioncolumn.

2. GN01.0002:

a. Moved contractor van parking location and identified dumpster location.

3. ME08.0002:

a. Removed chiller control schematic to place scope under electrical contract. Refer todrawing EL06.0010 for chiller control schematic.

4. ME09.0001:

a. Added fan sound level requirements.

5. EL04.0001:

a. Removed circuits 26, 28, 30 from panelboard “L” to chiller CH-6 control panel thatcorrespond to Conduit #140, 141, and 142.

6. EL04.0002:

a. Added circuit 26 from panelboard “L” to chiller CH-6 starter at medium voltage motorcontroller MVMC-2.

7. EL06.0003:

a. Added the following to Drawing Note #2: “Refer to EL06.0010, for Schematic WiringDiagram.”

Page 2 of 2 AMENDMENT NO. 3 ATTACHMENT NO. 1RMF No. 114019.B0

8. EL06.0010:

a. Added drawing to include Chiller CH-6 Schematic Wiring Diagram under electrical scope.

9. EL09.0001:

a. Removed circuits 28, 30 from panelboard “L” and assigned breaker positions as “space”.

10. EL09.0002:

a. Removed conduits P141, P142 from cable and conduit schedule.

3. SPECIFICATION REVISIONS:

1. 007300 – SUPPLEMENTARY CONDITIONS

a. Deleted paragraph 3.11 as seen below.

3.11 WORK ADJACENT TO METRO

A. Perform all work in accordance with the Washington Metropolitan Area Transit Authority (WMATA) "Adjacent Construction Design Manual," Revision NO. 1.

B. Be responsible for obtaining any necessary permits from WMATA. Comply with WMATA regulations in connection with construction over, around, or within WMATA right-of-way.

C. A WMATA inspector will be required while the Contractor is working over, around, or within WMATA right-of-way.

2. 230913 – INSTRUMENTATION AND CONTROL DEVICES FOR HVAC

a. Added CV-231 thru CV-236 to performance chart in control valve paragraph 2.2.

3. 236416 – CENTRIFUGAL WATER CHILLERS

a. Revised evaporator and condenser tube requirements. Clarified remote mounted starterscope of work.

4. 261839 – MEDIUM-VOLTAGE MOTOR CONTROLLERS

a. Revised specification to include additional requirements for coordination with Tranechiller.

DL1501

PROJECT IDENTIFIER

VOLUME NUMBER

SCALE

DESIGNED

CHECKED

DATE

DRAWN

ACCEPTED

SUBMITTED

APPROVED

REVISIONNO. DATE

07/25/2016

OMK

LML

RMN

11/23/2017

DRAWING INDEX AND CODE ANALYSIS

GN01.0001

WWM

WMB

NONE

WWM

DL1501

PROJECT IDENTIFIER

VOLUME NUMBER

SCALE

DESIGNED

CHECKED

DATE

DRAWN

ACCEPTED

SUBMITTED

APPROVED

REVISIONNO. DATE

07/25/2016

OMK

LML

RMN

11/23/2017

CHILLER AND BOILER PLANT SITE PLAN

GN01.0002

WWM

WMB

1" = 20'-0"

WWM

DL1501

PROJECT IDENTIFIER

VOLUME NUMBER

SCALE

DESIGNED

CHECKED

DATE

DRAWN

ACCEPTED

SUBMITTED

APPROVED

REVISIONNO. DATE

07/25/2016

OMK

LML

RMN

11/23/2017

CHILLER CONTROL SCHEMATICS

ME08.0002

WWM

WMB

NONE

WWM

DL1501

PROJECT IDENTIFIER

VOLUME NUMBER

SCALE

DESIGNED

CHECKED

DATE

DRAWN

ACCEPTED

SUBMITTED

APPROVED

REVISIONNO. DATE

07/25/2016

OMK

LML

RMN

11/23/2017

MECHANICAL EQUIPMENT SCHEDULES

ME09.0001

WWM

WMB

NONE

WWM

DL1501PROJECT IDENTIFIER

VOLUME NUMBER

SCALE

DESIGNED

CHECKED

DATE

DRAWN

ACCEPTED

SUBMITTED

APPROVEDREVISIONNO. DATE

07/25/2016

OMK

LML

RMN

CHW PLANT LOWER LEVEL POWER PLAN - NEW WORK

HFM

KRS DMG

EL04.0001

CHW PLANT LOWER LEVEL POWER PLAN - NEW WORK

DRAWING NOTESGENERAL NOTES

MATCH LINE SEE SHEET EL04.0004

1/4" = 1'-0"

ELECTRICAL MEZZANINE POWER PLAN - NEW WORK

HFM

KRS XMZ

EL04.0002

ELECTRICAL MEZZANINE POWER PLAN - NEW WORK


VOLUME NUMBER

SCALE

DESIGNED

CHECKED

DATE

DRAWN

ACCEPTED

SUBMITTED


07/25/2016

OMK

LML

RMN

GENERAL NOTES DRAWING NOTES

1/4" = 1'-0"

EEL07 0003

CENTRAL PLANTSINGLE LINE DIAGRAM - NEW WORK

HFM

KRS XMZ

EL06.0003


VOLUME NUMBER

SCALE

DESIGNED

CHECKED

DATE

DRAWN

ACCEPTED

SUBMITTED


07/25/2016

OMK

LML

RMN

CENTRAL PLANT - SINGLE LINE DIAGRAM - NEW WORK

GENERAL NOTES

DRAWING NOTE

NONE

CHILLER CH-6SCHEMATIC WIRING DIAGRAM

HFM

KRS AJS

EL06.0010


VOLUME NUMBER

SCALE

DESIGNED

CHECKED

DATE

DRAWN

ACCEPTED

SUBMITTED


07/25/2016

OMK

LML

RMN

NONE

GENERAL NOTES

DRAWING NOTES

CHILLER CH-6 - SCHEMATIC WIRING DIAGRAM

MOTOR CONTROL CENTER SCHEDULE MCC-23

LIGHTING FIXTURE SCHEDULE

PANELBOARD SCHEDULE

MOTOR CONTROL CENTER MCC-23, PANELBOARDAND LIGHTING FIXTURE SCHEDULES

HFM

KRS AJS

EL09.0001


VOLUME NUMBER

SCALE

DESIGNED

CHECKED

DATE

DRAWN

ACCEPTED

SUBMITTED


07/25/2016

OMK

LML

RMN

GENERAL NOTES

NONE

CABLE AND CONDUIT SCHEDULECABLE AND CONDUIT SCHEDULE

CABLE AND CONDUIT SCHEDULE

HFM

KRS AJS

EL09.0002


VOLUME NUMBER

SCALE

DESIGNED

CHECKED

DATE

DRAWN

ACCEPTED

SUBMITTED


07/25/2016

OMK

LML

RMN

GENERAL NOTES

NONE

DRAWING NOTES


Task 02 - Central Utility Plant Modifications

Contract No. 1-13-C092

RMF NO.: 114019.B0


November 23, 2016

SUPPLEMENTARY CONDITIONS 007300 - 1

SECTION 007300 — SUPPLEMENTARY CONDITIONS

PART 1 - GENERAL

1.1 RELATED DOCUMENTS

A. Drawings, Contract Provisions, Special Provisions, and other Division 01 Specification

Sections, apply to this Section.

1.2 SUMMARY

A. The articles and paragraphs of this Section represent supplements or additions to the

Contract Provisions or the Special Provisions. The requirements of this section are the sole

responsibility of the Contractor. No additional payment will be made to the Contractor to

fulfill these requirements.

1.3 WORK UNDER OTHER CONTRACTS

A. During the period of this Project, the Authority anticipates that other construction contracts

may be underway at or near the site of work of this Contract. A list of adjacent construction

activities follows:

1. Modify DFS Building at DCA

2. TO #4 – Hangars 2, 3, & 4 Alteration & Fit-Out

PART 2 - PRODUCTS (NOT USED)

PART 3 - EXECUTION

3.1 PERMITTING

A. Comply with all requirements set forth in the Authority's “Building Codes Manual”. This

manual describes Building Codes organization, Building Code inspection process, and

Certificate of Occupancy requirements.. The Authority will file for and provide the

construction permit.

3.2 MAINTENANCE OF PEDESTRIAN AND VEHICULAR TRAFFIC

A. Maintain adequate pedestrian and vehicular traffic flow and safety along the service roads,

sidewalks, parking lots and other roadways on Airport property. In addition, this requirement

applies to crossroads, approaches, and entrances affected by or made necessary by the Work.

Coordinate activities throughout the project in a manner that allows emergency access,




RMF NO.: 114019.B0


November 23, 2016


without delays to emergency response vehicles, to all areas of the Project that are occupied

by employees.

B. Prior to starting construction operations affecting pedestrian, vehicular, or aircraft traffic

movement, submit and obtain the COTR's written approval of a Traffic Maintenance Plan.

Develop plan in accordance with the safety requirements of the FAA, Airport Operations,

and the Commonwealth of Virginia Department of Transportation’s “Manual of Uniform

Traffic Control Devices”. Utilize the form indicated in the latest edition of the Virginia

Department of Transportation’s “Virginia Work Area Protection Manual – Standards and

Guidelines”.

C. Provide and maintain temporary signage, "Jersey barriers," and such other traffic control

devices or personnel as required complying with approved Traffic Maintenance Plan.

D. Maintain the construction operations affecting pedestrian, vehicular, or aircraft traffic

movement from the beginning of construction operations until final acceptance of the

project. The maintenance shall constitute continuous and effective work prosecuted day by

day with adequate equipment and forces to the end of project to ensure that roadways and

structures are maintained in satisfactory condition at all times, including barricades and

warning signs as necessary for performance of the work.

E. Keep the portions of the project being used by public, pedestrian, and vehicular traffic,

whether it is through or local traffic, in such condition that traffic will be adequately

accommodated. Remove snow and control all ice within the project boundaries. Removal

of snow and ice for the benefit of the traveling public will be performed by the Authority.

Bear all cost of maintenance work during construction and before the project receives a

Certificate of Occupancy for constructing and maintaining approaches, crossings,

intersections and other features as may be necessary.

F. Keep the portions of the road surfaces being used by the public free from irregularities,

obstructions, mud, dirt, snow, ice, and any characteristic that might present a hazard or

annoyance to traffic in such condition that traffic will be adequately accommodated.

Maintain a vacuum/sweeper and flusher truck at the site at all times to clean roadway and

aircraft surfaces affected by construction traffic at the request of Airport Operations or the

COTR. ̀

3.3 ENVIRONMENTAL PROTECTION

A. Comply with all Federal, state and local laws and regulations controlling pollution of the

environment. Take necessary precautions to prevent pollution of streams, rivers, lakes,

ponds, and reservoirs with fuels, oils, bitumens, chemicals, or other harmful materials and to

prevent pollution of the atmosphere from particulate and gaseous matter.

B. Notify COTR immediately in the event that abnormalities, discolorations, odors, oil, or other

signs of potential contamination by hazardous materials are encountered during excavation

or other construction activities. Follow with written notice within 24 hours, indicating date,

time, and location of potential contaminants encountered. The COTR will provide further

direction to Contractor regarding disposition of materials encountered.




RMF NO.: 114019.B0


November 23, 2016


C. All painted surfaces are assumed to contain lead-based paint. The Contractor shall maintain

the necessary health and safety requirements for all personnel in accordance with OSHA

regulations to work in these conditions. The removal and disposal of lead-based paint is part

of this contract.

3.4 DAMAGES AND PRE-EXISTING CONDITIONS

A. Be responsible for all damages caused by Contractor’s construction activities. Provide all

labor, materials, etc. to return any damaged areas, systems or equipment to their original

condition at no additional cost to the Authority.

B. Perform a survey of pre-existing conditions in the vicinity of Contractor’s construction

activities, utilizing photographs and other means as necessary to document existing damage

or conditions. Submit two copies of this survey to the Contracting Officer within 21

calendar days after Notice-to-Proceed. This survey will assist in resolving any damage

claims against the Contractor during and after construction.

C. Preserve all roadways, pedestrian and directional signage. Deliver all signs removed and not

required for reinstallation to the Authority as directed by the COTR.

D. Replace or repair lost or damaged signs at no cost to the Authority.

3.5 SECURITY DURING CONSTRUCTION

A. Maintain the integrity of the Airport Security fence. Maintain the integrity of doors and

walls between public areas and Air Operations Area (AOA) at all times. Comply with Title

49 Code of Federal Regulations, Parts 1500, 1540, 1542 and 1544.

B. Establish and maintain the security of Contractor’s staging areas, equipment and materials.

C. Do not park within 300 feet of a terminal building unless specifically authorized by Airport

Operations.

D. No firearms or weapons of any type are allowed on the airport.

E. No cartridge style nail guns, nor any tools that use a cartridge or any explosive charge, are

allowed without prior written notification of COTR. Obtain written approval from the COTR

before bringing such tools on the project.

F. Conform to all Orders and Instructions pertaining to vehicle inspection.

3.6 MATERIAL HAULING

A. Access and egress to and from the Airport for hauling operations shall be only on the routes

indicated on the plans. Conduct hauling operations including delivery of large loads as

indicated on the plans. Contractor is responsible for compliance with local jurisdiction off-

airport. Conduct hauling operations during the hours of 9pm and 5am.




RMF NO.: 114019.B0


November 23, 2016


B. Bear all costs associated with establishing, maintaining, signing, lighting and marking haul

routes. These costs are considered incidental to the pay items of this Contract.

C. Use load covers on all dump trucks. Load dump trucks so that no spillage occurs during

transit on the State, municipal, or Airport roadways, taxiways, and aprons. Clean wheels of

trucks leaving the Project construction site of all soil and rocks. Provide a truck washing

rack on the Project site to minimize the tracking of soil onto paved surfaces.

D. Be responsible for the cost of the immediate cleaning of earth tracking and spills on paved

surfaces resulting from the Contractor's operations. Maintain a water truck on site if

requested by the COTR in order to effectively control dust rising from the construction

activities.

3.7 PORTABLE LIGHTING

A. Portable lighting: If used for Contractor operations, aim and shield portable lighting at all

times to eliminate glare that could impair runway, taxiway, apron, ground operations, and

Airport Traffic Control Tower operations. Equip portable lighting with reflectors and glare

shields to prevent spillover of light into operational areas.

3.8 HEIGHT LIMITATION

A. For all demolition and construction within the Airport, limit the height of Contractor's

equipment to a maximum of 14 feet, including crane, concrete pump equipment, etc. The

existing bridge by the chilled water storage tank is an arch bridge. Maximum height at center

of bridge is 14-feet, decreasing further away from center.

B. Prior to beginning any work coordinate with the COTR the height of all cranes, boom trucks,

scaffolds or similar vehicles of construction. Properly mark all construction equipment with

safety flags and warning lights in accordance with current FAA and Airport Operations

requirements. Submit FAA Form 7460, provided by COTR, for all variations on approved

crane heights.

3.9 NOISE CONTROL

A. The Authority recognizes and can tolerate a normal level of noise created by a majority of

construction activity. However, in the interest of the Authority's neighbors, the maximum

acceptable noise level between the hours of 5:00 pm and 7:00 am the following morning is

limited to 55 decibels. During daytime hours of 7:00 am through 5:00 pm, the maximum

acceptable noise level for sustained or repetitive noises is 72 decibels. Measure the noise

level using an "A" scale at a point 4'-0" above ground at property line nearest noise source.

B. Secure advance written approval from the COTR prior to scheduling any activity that is

anticipated to produce a sustained or repetitive noise level higher than the decibel limits

indicated above.




RMF NO.: 114019.B0


November 23, 2016


C. In and around terminal facilities and buildings whose normal occupancy is from 7 a.m. to 7

p.m., perform work that causes noise that is disruptive to the airport’s tenants or the traveling

public between the hours of 11:00 pm and 5:00 am. Measure noise for this situation using

an “A” scale at a point 4’-0” above ground at the closest point to airport tenants or the

traveling public.

3.10 EXAMINATION OF PLANS, SPECIFICATIONS AND SITE OF WORK

A. The offeror is expected to examine carefully the site of the proposed work, the proposal,

plans, specifications, solicitation provisions, contract provisions, special provisions and

contract forms before submitting a proposal. The submission of a proposal will be

considered conclusive evidence that the offeror has made such examination and is satisfied

as to the conditions to be encountered in performing the work as to the requirements of the

Contract.

PART 4 - MEASUREMENT (NOT USED)

PART 5 - PAYMENT (NOT USED)

END OF SECTION 007300

METROPOLITAN WASHINGTON AIRPORTS AUTHORITY

TASK 02 - CENTRAL UTILITY PLANT MODIFICATIONS

CONTRACT NO. 1-13-C092

RMF NO.: 114019.B0

AMENDMENT NO 3 ATTACHMENT NO. 1

November 23, 2016

INSTRUMENTATION AND CONTROL DEVICES FOR

HVAC

23 0913 - 1

SECTION 23 0913 - INSTRUMENTATION AND CONTROL DEVICES FOR HVAC

PART 1 GENERAL

1.1 SECTION INCLUDES

A. Thermostats.

B. Control valves.

C. Input/Output Sensors:

1. Temperature transmitters.

2. Pressure transmitters.

3. Pressure switches.

1.2 REFERENCE STANDARDS

A. NEMA DC 3 - Residential Controls - Electrical Wall-Mounted Room Thermostats; 2013.

1.3 SUBMITTALS

A. See Section 01 3000 - Submittals, for submittal procedures.

B. Product Data: Provide description and engineering data for each control system

component. Include sizing as requested. Provide data for each system component and

software module.

C. Shop Drawings: Indicate complete operating data, system drawings, wiring diagrams,

and written detailed operational description of sequences. Submit schedule of valves

indicating size, flow, and pressure drop for each valve. For automatic dampers indicate

arrangement, velocities, and static pressure drops for each system.

D. Operation and Maintenance Data: Include inspection period, cleaning methods,

recommended cleaning materials, and calibration tolerances.

E. Project Record Documents: Record actual locations of control components, including

panels, thermostats, and sensors. Accurately record actual location of control

components, including panels, thermostats, and sensors.

1.4 QUALITY ASSURANCE

A. Manufacturer Qualifications: Company specializing in manufacturing the Products

specified in this section with minimum three years documented experience.

http://global.ihs.com/doc_detail.cfm?rid=BSD&document_name=NEMA%20DC%203




RMF NO.: 114019.B0


November 23, 2016


HVAC

23 0913 - 2

B. Installer Qualifications: Company specializing in performing the work of this section

with minimum 3 years experience approved by manufacturer.

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

Laboratories Inc., as suitable for the purpose specified and indicated.

PART 2 PRODUCTS

2.1 EQUIPMENT - GENERAL

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

Laboratories Inc., as suitable for the purpose specified and indicated.

2.2 CONTROL VALVES

A. Butterfly Pattern:

1. High performance style, MSS SP067; ANSI Class 150 carbon steel body

conforming to ASTM A216, with physical position indicator. Lug type, bi-

directional valves with 316 stainless steel disc; 17-4 PH stainless shaft; brass

bushings; reinforced Teflon seat; and graphite packing. Seat retainer ring to be

bolted in place with stainless steel bolts. Acceptable manufacturers and models

include: Jamesbury Model 815L, Bray, Flowseal, and Tyco/Keystone.

2. Hydronic Systems:

a. Rate for service pressure of 125 psig at 250 degrees F.

b. Size per characteristics below.

Chiller Head Pressure Control (CV-206)

Pipe Size 12-inch in, 14-inch out, Valve Size 10-inch

Units Norm Flow Min Flow

Flow Rate GPM 3450 1725

Inlet Pressure PSIG 26 63

Outlet Pressure PSIG 24 24

Required Cv F 2440 276

Travel % 80 20-25

Cooling Tower Inlet Control (CV-231 thru CV-236)

Pipe Size 12-inch in/out, Valve Size 12-inch

Units Norm Flow Shut-Off

Flow Rate GPM 3450 -

Inlet Pressure PSIG 8.5 -

Outlet Pressure PSIG 8.0 -

Required Cv F 5000 -

Travel % 100 0

B. Requirements:

1. Each valve shall have a permanently attached tag containing the stated tag number

(i.e. FCV-206) of the device with the following:




RMF NO.: 114019.B0


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HVAC

23 0913 - 3

a. Manufacturer’s Name

b. Pressure Rating

c. Type

d. Serial Number

e. Valve Size and Type

f. Valve Action

g. Valve Travel

h. Control Signal Pressure

i. Valve Tag Number

C. Control Valve Actuators, General:

1. Actuators shall be sized to fully hold the valve against the maximum process

differential pressure and spring rate with air to the actuator. If not explicitly stated

maximum process differential pressure is to be determined at an upstream pressure

10 percent above maximum inlet pressure and the downstream pressure at

atmospheric

2. Control Valve Actuator Requirements:

a. Control valve actuators shall be provided with the control valve as an entire

package therefore keeping responsibility in the hands of the control valve

supplier. The control valve manufacturer does not have to be the

manufacturer of the actuator. Control valves shall arrive on-site with

actuators already installed on the control valves. It is the responsibility of

the control valve supplier to provide an accurately sized actuator.

b. Actuators shall be linear or rotary to suit the control valve style. Actuators

shall be directly mounted on valve bodies. No three-bar linkages should be

provided.

c. Provide actuators sized to have a continuous torque as required by the

application based on available 80 PSIG power air supply and operable

without damage up to 150 PSIG air supply.

d. Two Position Actuator (Cooling Tower Cell 6 Isolation CV-236):

1) General: All control accessories shall be provided with the valve by

the valve supplier. All accessories shall be factory assembled and

mounted on valve prior to shipment to job site. All valves and

accessories shall be factory tested to verify proper operation.

2) Actuator shall be selected by supplier based on intended duty (flow,

pressure and location).

3) Actuator shall be piston type. Maximum air supply pressure is 80

psig. Actuator orientation is vertical up.

e. Modulating Valve Actuator (Chiller Head Pressure Control CV-206):

1) General: All control accessories shall be provided with the valve by

the valve supplier. All accessories shall be factory assembled and

direct mounted to valve prior to shipment to job site. All valves and

accessories shall be factory tested to verify proper operation.

2) Actuator shall be selected by supplier based on unloaded duty, flow

pressure and location.

3) Actuator shall be diaphragm type. Maximum air supply pressure is 80

psig. Actuator orientation is vertical up.

f. Position Transmitter




RMF NO.: 114019.B0


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HVAC

23 0913 - 4

1) Provide in accordance with the control valve or I/O schedule.

2) When located outside the building provide position transmitters

capable of operation at -40°F; Triac EY Series, or equal.

g. Position Switch (CV-236):

1) Position switch assembly shall be provided with two switches; one

with will be activated when the valve is opened; one will be actuated

when the valve is closed. Switch shall have the ability to be adjusted

so that it can be actuated at any specific intermediate position. Switch

type shall be SPDT mechanical type and rated for 10A at either

120VAC or 125VDC.

h. Visual indication on graphic screens shall be RED for closed / GREEN for

open.

i. De-clutchable Manual Override

1) Provide side declutchable manual override on all butterfly valves. It

shall consist of a manual gear actuator mounted between the actuator

and the valve. The device shall be normally disengaged from the

shaft.

D. Positioners shall be provided on all modulating actuators (CV-206):

1. Construction: Construction shall be rugged type designed for industrial

applications, with low sensitivity to vibration and shock. Electronics housing shall

be low copper aluminum with a NEMA 4X rating and painted with epoxy

polyester or polyurethane paint. Provide inlet and outlet air gages.

2. Design: The positioner shall convert a 4-20 mA DC current input signal to a

proportional range as required to operate the control valve.

3. Communication Technology and Diagnostics Package:

a. All positioners shall include Hart digital valve communicating controllers

which use feed back of the valve travel position to diagnose the position of

controller, valve and actuator and shall be used to trend valve performance

degradation. This shall be in addition to a separate direct 4-20 mA signal

for monitoring of the valve position which will be wired back to the PCS.

Communication shall allow identification tag number, device information,

and self diagnostics, and shall allow maintenance between the PCS and the

positioner. The controller shall allow loop check on-line, automatically

calibrate travel, automatically tune controller, and verify the dynamic

response to input changes. The controller shall allow tracking of current,

actuator pressure, and travel. Self diagnostic capabilities shall check valve

performance by comparing the percent signature (bench set, seat load

friction etc) against stored signatures to discover performance changes prior

to them becoming significant to affect the process. All devices required to

perform this function shall be provided. In addition, the position indication

for all valves, in terms of percent open, shall be relayed and indicated to

PCS. Provide a separate device if necessary to provide this feature.

Communication shall occur via a digital signal along the 4 to 20 mA signal

and shall not interfere with the 4 to 20 mA signal.

b. Vendor shall provide DTM's that are compatible with Rockwell Fieldcare.

4. Approved Vendors: Emerson (Fisher Rosemount), Masonielan, Samson, and

Siemens.




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E. All accessories shall be yoke-mounted .

F. Unless otherwise specified, weld-on flanges are not acceptable and all valve flange face

to face dimensions must conform to ANSI Standards.

G. All control valves shall be fully assembled with all accessories and functionally tested at

the factory. This consists of connecting air and electricity, if required, and stroking the

valve, pressurizing the control pneumatics, and checking proper operation of accessories

such as positioners, solenoid valves, bypass valves, etc.

H. All electrical accessories shall have NEMA 4 housing, minimum, unless otherwise

specified.

I. Solenoid valves, when specified, shall be rated for continuous duty, epoxy molded coil,

120 VAC operated, standard material rated for the service conditions unless otherwise

specified on the data sheet.

J. Flow direction shall be permanently shown on valve body.

K. Unless explicitly specified, the manufacturer shall select the valve trim characteristic

based on the individual service requirement for each valve.

L. Valves shall comply with the following industry standards.

1. ANSI B16.34: Valve Flanged, Threaded, and Welding Ends.

2. ANSI B16.104: Control Valve Seat leakage

3. MSS SP-68: High Pressure Offset Seat Butterfly Valves

4. API 598: Valve Inspection and Test.

5. API 609: Butterfly Valves – Lug Type and Wafer Type

M. All control valves will be equipped with a local position indicator. Visual indicator shall

be Green for closed / Red for open.

2.3 INPUT/OUTPUT SENSORS

A. Temperature Indication Transmitters: Rosemount 644 Series.

1. Provide transmitters as indicated in the contract documents suitable for use with

specified operating conditions. Temperature transmitters shall be provided

complete with sensor assembly and all required accessories. Sensor assembly and

transmitter shall be manufactured and supplied by the same entity.

a. Provide local indication.

2. Construction: Construction shall be rugged type, designed for industrial

applications with low sensitivity to vibration and shock. The electronics housing

shall be a low copper aluminum NEMA 4X enclosure. Cover O-rings shall be

Buna-N. Electrical connection shall be 1/2-inch NPT. Transmitter shall be

compatible with a variety of temperature sensors, including 2, 3, and 4 wire RTD's,

thermocouples, and other resistance and millivolt inputs.

3. Electrical Design:




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23 0913 - 6

a. The transmitter shall operate with regulated DC power of 24 volts. Current

requirements shall be a maximum of 25 mA.

b. Transmitters shall have a load resistance effect less than plus or minus 0.10

percent of span per 1,000 ohm of load.

c. Output signal shall be 4 to 20 mA with Hart protocol. Output signal shall be

analogous to temperature range.

d. Transmitter shall be equipped with a 5 digit loop powered LCD display.

Display options shall include engineering units in degrees F and milliamps.

Display accuracy shall be +/- 0.5% calibrated span.

4. Performance Specifications: Transmitter accuracy shall be minimum of +/- 0.25

deg. F including combined effects of linearity, hysteresis, and repeatability.

Stability shall remain within plus or minus 0.1 percent of span for 24 months. All

transmitters shall be factory calibrated.

5. Mounting: Provide a bracket for mounting each transmitter on a 2-inch pipe.

Bracket shall be constructed of carbon steel with carbon steel U-bolt. Bracket shall

be coated with polyurethane paint. Provide bolts and nuts for flanges and adapters.

Where approved by government transmitters can be direct mounted to sensor

assembly.

6. Tagging: Transmitter Tag No. as indicated on Data Sheets and bid documents

shall be permanently stamped on the transmitter nameplate. Tag shall permanently

be attached to the transmitter.

7. Communication Technology:

a. All temperatures supplied under this project shall have a PCS interface via

the Hart protocol. Communication shall allow identification of measured

variables, tag number, range and span settings, device interrogation and

diagnostics, and shall allow respanning, calibration and maintenance

between the PCS and the transmitter. Communication shall occur via a

digital signal along the 4 to 20 mA signal and shall not interfere with the 4

to 20 mA process signal.


8. Sensor Assembly:

a. Sensor Type: Platinum four wire 100 ohm RTDs, by Burns or equal. RTDs

shall have a terminal block.

b. Spring Loaded Assembly

c. Sheath Material: 304SS

d. Installed length shall be selected by Contractor to suit specific line size.

e. Standard Type 304SS extension shall be provided, where required.

9. Thermowells

a. All thermowells shall be threaded tapered style.

b. Thermowell length shall be selected by Contractor such that thermowell

extends 50% into the process stream.

c. Material: 304SS

d. Provide factory certification that thermowell length will not result in

harmonic resonance at expected flow range.

10. Calibrated Span - provide sensors on the following services with the spans listed

below:

a. Chilled Water: 30 to 80F

b. Condenser Water: 30 to 120F




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23 0913 - 7

c. Space Temperature: 30 to 120F.

B. Temperature Sensors:

1. This paragraph applies to sensors not specified in the previous paragraph.

2. Temperature sensing device must be compatible with project DDC controllers.

3. Performance Characteristics:

a. RTD:

1) Room Sensor Accuracy: Plus/minus 0.50 degrees F minimum.

2) Duct Averaging Accuracy: Plus/minus 0.50 degrees F minimum.

3) All Other Accuracy: Plus/minus 0.75 degrees F minimum.

b. Temperature Transmitter:

1) Accuracy: 0.10 degree F minimum or plus/minus 0.20 percent of

span.

2) Output: 4 - 20 mA.

c. Sensing Range:

1) Provide limited range sensors if required to sense the range expected

for a respective point.

2) Use temperature transmitters in conjunction with RTD's when RTD's

are incompatible with DDC controller direct temperature input.

d. Outside Air Sensors: Watertight inlet fitting shielded from direct rays of the

sun.

e. Room Temperature Sensors:

1) Construct for surface mounting.

C. Pressure/Differential Indicating Transmitters: Rosemount 2051 Series.

1. General: Provide transmitters as indicated in the contract documents suitable for

use with specified operating conditions.

2. Construction: Construction shall be rugged type, designed for industrial

applications with low sensitivity to vibration and shock. All process wetted parts

(isolating diaphragm, drain/vent valves, process flanges and adapters) shall be 316

Stainless Steel. Wetted O-rings shall be Viton. The electronics housing shall be a

low copper aluminum NEMA 4X enclosure. Cover O-rings shall be Buna-N.

3. Electrical Design

a. The transmitter shall operate with regulated DC power of 24 volts. Current

requirements shall be maximum of 25 mA.

b. Transmitters shall have a load resistance effect less than plus or minus 0.10

percent of span per 1,000 ohm of load.

c. Output signal shall be 4 to 20 mA with Hart digital protocol. Output signal

shall be analogous to pressure or differential pressure range.

d. Transmitter housing shall have 4 digit loop powered display which indicates

process condition and units (i.e. 20 PSIG pressure.)

4. Performance Specifications:

a. Accuracy (including combined effects of linearity, hysteresis, and

repeatability) shall be as follows:

1) Differential Pressure: Within plus or minus 0.075 percent of span.

2) All other transmitters not indicated above 0.25 percent of span.

b. Linearity within plus or minus 0.1 percent calibrated span.

c. Hysteresis within plus or minus 0.005 percent of calibrated span.




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23 0913 - 8

d. Repeatability within plus or minus 0.05 percent of calibrated span.

e. Drift within plus or minus 0.2 percent of upper range limit per year.

f. Calibration: All transmitters shall be factory calibrated.

5. Connections: Process connections shall be 1/2 inch NPT. Provide side drain and

vent. Electrical connection shall be 1/2 inch NPT with screw terminals and

integral test jacket.

6. Communication Technology:

a. All pressure and differential pressure transmitters supplied under this project

shall have a PCS interface via the Hart protocol. Communication shall

allow identification of measured variables, tag number, range and span

settings, device information and diagnostics and shall allow respanning

calibration and maintenance between the PCS and the transmitter. All

devices required to perform this function shall be provided. Communication

shall occur via a digital signal along the 4 to 20 mA signal and shall not

interfere with the 4 to 20 mA process signal.


c. For HART communication tagging, PDIT’s shall be abbreviated to PDT, so

that 8 digit maximum is not exceeded.

7. Tagging: Transmitter Tag No. as indicated on contract documents shall be

permanently stamped on the transmitter nameplate. Tag shall be permanently

attached to the transmitters. In addition provide aluminum identification tag per

Division 23 Section “Mechanical Identification”.

8. Accessories: Provide three valve manifold for all differential pressure transmitters.

Manifold shall be constructed with a Type 316 stainless steel body and stem.

Hand wheel and barrel shall be Type 304SS. Packing and seals shall be Teflon.

Nominal rating of manifold shall be 3000 psi at 392 degrees F. Provide

connections required to connect test equipment for instrument calibration and

adjustment.

9. Mounting Brackets: Provide a bracket for mounting each transmitter on a 2-inch

pipe. Bracket shall be constructed of carbon steel with carbon steel U-bolt.

Bracket shall be coated with polyurethane paint. Provide bolts and nuts for flanges

and adapters.

10. Provide local indication.

D. Pressure Differential Switches (PDS):

1. Provide pressure differential switches at chiller, CHW loop pump, and condenser

water pump:

a. Setting: Set in field.

b. Type: Diaphragm with spring.

c. Material: 316SS.

d. Switch:

1) Quantity: Dual.

2) Rating: 15A, 120V

3) Enclosure: NEMA 4X.

2. Chiller 6 and CHW Loop Pump 6:

a. Range: .4-2 psid.

b. Set Point: 1 psid.

c. Signal: 120VAC.




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23 0913 - 9

3. Condenser Water Pump 6:

a. Range: 2-25 psid.

b. Set Point: 5 psid.

c. Signal: 120VAC.

E. Damper Position Indication: Potentiometer mounted in enclosure with adjustable crank

arm assembly connected to damper to transmit 0 - 100 percent damper travel.

2.4 THERMOSTATS

A. Electric Room Thermostats:

1. Type: NEMA DC 3, 24 volts, with setback/setup temperature control.

2. Service: Cooling and heating.

B. Room Thermostat Accessories:

1. Insulating Bases: For thermostats located on exterior walls.

PART 3 EXECUTION

3.1 EXAMINATION

A. Verify existing conditions before starting work.

B. Verify that systems are ready to receive work.

C. Beginning of installation means installer accepts existing conditions.

D. Sequence work to ensure installation of components is complementary to installation of

similar components in other systems.

E. Coordinate installation of system components with installation of mechanical systems

equipment such as air handling units and coils.

F. Ensure installation of components is complementary to installation of similar

components.

3.2 INSTALLATION

A. Install in accordance with manufacturer's instructions.

B. Check and verify location of exposed control sensors with plans and room details before

installation. Locate 60 inches above floor. Align with lighting switches. Refer to

Section 26 2726.

C. Mount freeze protection thermostats using flanges and element holders.

http://global.ihs.com/doc_detail.cfm?rid=BSD&document_name=NEMA%20DC%203




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23 0913 - 10

D. Provide separable sockets for liquids and flanges for air bulb elements.

E. Provide valves with position indicators and with pilot positioners where sequenced with

other controls.

F. Provide mixing dampers of opposed blade construction arranged to mix streams. Provide

pilot positioners on mixed air damper motors. Provide separate minimum outside air

damper section adjacent to return air dampers with separate damper motor.

G. Provide isolation (two position) dampers of parallel blade construction.

H. Install damper motors on outside of duct in warm areas. Do not install motors in

locations at outdoor temperatures.

I. Mount control panels adjacent to associated equipment on vibration free walls or free

standing angle iron supports. One cabinet may accommodate more than one system in

same equipment room. Provide engraved plastic nameplates for instruments and controls

inside cabinet and engraved plastic nameplates on cabinet face.

J. Install "hand/off/auto" selector switches to override automatic interlock controls when

switch is in "hand" position.

K. Provide conduit and electrical wiring in accordance with Section 26 2717. Electrical

material and installation shall be in accordance with appropriate requirements of Division

26.

PART 4 CONTRACTOR QUALITY CONTROL

4.1 CONTRACTOR QUALITY CONTROL REQUIREMENTS

A. Refer to Specification Section 014000 - Quality Requirements.

END OF SECTION




RMF NO.: 114019.B0


November 23, 2016

CENTRIFUGAL WATER CHILLERS 23 6416 - 1

SECTION 23 6416 - CENTRIFUGAL WATER CHILLERS

PART 1 GENERAL

1.1 SECTION INCLUDES

A. Chiller package.

B. Charge of refrigerant and oil.

C. Controls and control connections.

D. Chilled water connections.

E. Condenser water connections.

F. Electrical power connections.

1.2 REFERENCE STANDARDS

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

Packages Using the Vapor Compression Cycle; 2011.

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

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

Buildings; 2013, Including All Addenda.

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

for Construction of Pressure Vessels; 2015.

E. NEMA MG 1 - Motors and Generators; 2014.

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

1.3 SUBMITTALS

A. See Section 01 3000 - Submittals, for submittal procedures.

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

requirements and wiring diagrams.

C. Shop Drawings: Indicate components, assembly, dimensions, weights and loadings,

required clearances, and location and size of field connections. Indicate equipment,

http://global.ihs.com/doc_detail.cfm?rid=BSD&document_name=AHRI%20550/590

http://global.ihs.com/doc_detail.cfm?currency_code=USD&customer_id=21254020200A&oshid=21254020200A&shopping_cart_id=21254020200A&rid=BSD&input_doc_number=ASHRAE%2015&country_code=US&lang_code=ENGL&item_s_key=00516430&item_key_date=861231&input_doc_number=

http://global.ihs.com/doc_detail.cfm?rid=BSD&document_name=ASHRAE%20STD%2090.1%20IP

https://global.ihs.com/doc_detail.cfm?rid=BSD&document_name=ASME%20BPVC-VIII-1

http://global.ihs.com/doc_detail.cfm?rid=BSD&document_name=NEMA%20MG%201

http://global.ihs.com/doc_detail.cfm?rid=BSD&document_name=UL%201995




RMF NO.: 114019.B0


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piping and connections, valves, strainers, and thermostatic valves required for complete

system.

D. Factory Test and Test Reports: Provide Factory Test reports. Indicate energy input

versus cooling load output for each machine, as follows:

1. 100% CHW flow rate @ design CHWS/R temperature and 85F CDWS and design

CDW flow rate.


CDW flow rate.


CDW flow rate.

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

F. Operation and Maintenance Data: Include start-up instructions, maintenance data, parts

lists, controls, and accessories. Include troubleshooting guide.

G. Maintenance Materials: None required.


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

Laboratories Inc. as suitable for the purpose specified and indicated.

1.5 DELIVERY, STORAGE, AND HANDLING

A. Comply with manufacturer's installation instructions for rigging, unloading, and

transporting units.

1.6 WARRANTY

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

B. Provide a five year warranty to include coverage for compressor and complete chiller

package as manufactured and delivered to site including materials and labor.

PART 2 PRODUCTS

2.1 MANUFACTURERS

A. Trane Inc: www.trane.com.

B. Substitutions: Not Permitted.




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2.2 CHILLER APPLICATIONS

A. Chiller CH-6: Water-cooled, single or multi-stage, single compressor.

1. Basis of Design: Trane CenTraVac.

2. Location: MWAA Central Cooling Plant.

3. Refrigeration Capacity: 1150 tons.

4. Refrigerant: Use only refrigerants that have ozone depletion potential (ODP) of

zero and global warming potential (GWP) of less than 50.

5. Refrigerant: R123.

6. Rating: Energy Efficiency Rating (EER)/Coefficient of Performance (COP) not

less than prescribed by ASHRAE Std 90.1 I-P.

7. Evaporator:

a. Working Pressure: 150 psi.

b. Fouling Factor: 0.0001.

8. Condenser Water:

a. Working Pressure: 150 psi.

b. Fouling Factor: 0.00025.

9. Compressor:

a. 4160 volts, three phase, 60 Hz.

2.3 CHILLERS

A. Chillers: Factory assembled and tested, packaged, water cooled, chillers consisting of

centrifugal compressors, compressor motor, condenser, evaporator, refrigeration

accessories, instrument and control panel including gages and indicating lights, auxiliary

components and accessories, and motor starters.

B. Rating: Conform to AHRI 550/590 (I-P).

C. Safety: Conform to UL 1995.

D. Conform to ASME BPVC-VIII-1 for construction and testing of centrifugal chillers, as

applicable.

E. Conform to ASHRAE Std 15 for safe construction and operation of centrifugal chillers.

2.4 COMPRESSORS

A. Compressor Casing: Cast iron, horizontally or vertically split with machined passages

and leak tested to 185 psig.

B. Impellers: Single or multi-stage, in-line design, fully shrouded, statically and

dynamically balanced, tested to 20 percent over operating speed, mounted on heat treated

forged or rolled steel shaft, nonferrous, labyrinth seals between stages.

http://global.ihs.com/doc_detail.cfm?rid=BSD&document_name=ASHRAE%20STD%2090.1%20IP

http://global.ihs.com/doc_detail.cfm?rid=BSD&document_name=AHRI%20550/590

http://global.ihs.com/doc_detail.cfm?rid=BSD&document_name=UL%201995





RMF NO.: 114019.B0


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C. Guide Vanes: Modulating radial blade dampers, on each stage, with externally mounted

electric operator, suitable for capacity reduction to 10 percent of specified load without

hot gas bypass when supplied with design entering water quantity and temperature.

D. Bearings: Steel or aluminum journal bearings, pressure lubricated.

E. Gear Box: Single or Double helical design, symmetrical and center supported by

spherically seated, self aligning bearing, arranged for inspection without disassembly.

F. Motor: Hermetically sealed, singled speed, low slip induction type.

G. Lubrication: Oil pump, with oil cooler, pressure regulator, oil filters, thermostatically

controlled oil heater, and motor controls. Interlock to start before chiller motor and run

after motor is shut down. Provide sight glass or electronic sensors for monitoring oil

level.

H. Refrigerant: Factory pre-charge unit with refrigerant specified above.

2.5 EVAPORATOR

A. Provide evaporator of shell and tube type with individually replaceable tubes. Provide

internally enhanced copper tubes.

B. Tube wall thickness at root shall be 0.035" minimum.

C. Test and, where applicable, stamp refrigerant side for required working pressure and

water side for 150 psig working pressure, in accordance with ASME BPVC-VIII-1.

ASME stamps are not applicable to R-123 machines due to low refrigerant pressure.

D. Provide marine type water boxes, bolted or machine welded to heat exchanger with

tapped drain and vent connections, and flanged connections arranged to permit inspection

of tubes from either end without disturbing refrigerant and removable without disturbing

water piping.

E. All waterbox covers shall be hinged.

F. Insulate evaporator and cold surfaces with 1.5 inch minimum thick flexible insulation

with maximum K value of 0.28.

G. Provide thermometer wells or thermistors for temperature controller and low temperature

cutout.

H. Design and construct evaporator to prevent liquid refrigerant from entering the

compressor.

I. Provide resetting relief valve on shell in accordance with ASHRAE Std 15.




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J. Construction and materials shall conform to ASME BPVC-VIII-1 or ASHRAE Std 15 as

applicable to chiller manufacturer and chiller model.

2.6 CONDENSER

A. Provide condensers of shell and tube type with individually replaceable tubes. Provide

internally enhanced copper tubes.

B. Tube wall thickness at root shall be 0.035" minimum.

C. Test and, where applicable, stamp refrigerant side for required working pressure and

water side for 150 psig working pressure; in accordance with ASME BPVC-VIII-1.

ASME stamps are not applicable to R-123 machines due to low refrigerant pressure.

D. Provide marine type water boxes, machine welded to heat exchanger with tapped drain

and vent connections, and flanged connections arranged to permit inspection of tubes

from either end without disturbing refrigerant and removable without disturbing water

piping.

E. All waterbox covers shall be hinged.

F. Provide resettable relief valve on shell in accordance with ASHRAE Std 15.

G. Provide baffles to ensure even distribution of incoming gas and to concentrate non-

condensible gases.

H. Construction and materials shall conform to ASME BPVC-VIII-1.

2.7 PURGE SYSTEM

A. Provide high efficiency purge system on low pressure units, incorporating a low

temperature refrigeration system to automatically remove non-condensibles, water and

air.

B. System discharge shall be maximum 0.02 pounds of refrigerant per pound of air

discharged.

C. Purge system for low-pressure refrigerant chillers shall be fully automatic in operation to

collect and return refrigerant and evacuate air and efficiency. The purge system shall

include all necessary controls, piping, and motor (if required). All components shall be

factory-mounted, piped, and wired. The high efficiency purge systems shall have

automatic controls to allow unattended operation.







RMF NO.: 114019.B0


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2.8 ECONOMIZER

A. Chiller shall be furnished with a single-stage economizer vessel that consists of a series

of interstage pressure changes with multiple orifices. The economizer shall maintain the

correct pressure differential between the condenser, economizer, and evaporator over the

entire range of loading.

2.9 ACCESSORIES

A. Pump-out Connections: Connections with isolation means shall be provided on each

chiller vessel to facilitate refrigerant reclaim/removal in accordance with ASHRAE 15.

2.10 CONTROLS

A. On or near chiller, provide microprocessor based control panel containing solid state,

fully automatic operating and safety controls.

B. Control panel shall include color graphics and touch screen, as well as emergency

shutdown "graphic button."

C. Provide the following manufacturer's standard safety controls, including the following

minimum functions, so that operating any one will shut down machine and require

manual reset:

1. Low evaporator refrigerant temperature.

2. High condenser refrigerant pressure.

3. Low oil pressure.

4. Low refrigerant (evaporator) pressure.

D. Provide the manufacturer's standard safety controls arranged so that operating any one

will shut down machine and automatically reset.

E. Provide the following devices (i.e. functions) on graphic control panel:

1. Manual Switches:

a. Machine off-auto switch.

b. Oil pump switch (manual or automatic).

c. Purge pump switch (manual-off-auto).

d. Machine selector switch to allow load, unload, hold or automatic operation.

2. Manual Set Point Adjustments:

a. Leaving chilled water temperature.

b. Current demand limit.

3. Status:

a. Chilled water flow proven.

b. Cooling required.

c. Unit running.

d. Unit loading.

e. Unit unloading.

f. Manual reset required.




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g. Remote chilled water set point active.

h. Remote current set point active.

4. Setpoint and Temperature Display:

a. Chilled water set point.

b. Current limit set point.

c. Entering evaporator water temperature.

d. Leaving evaporator water temperature.

e. Entering condenser water temperature.

f. Leaving condenser water temperature.

5. Pressure Displays.

a. Evaporator refrigerant pressure.

b. Condenser refrigerant pressure.

c. Low oil pressure (oil sump).

d. High oil pressure (oil supply).

F. Provide the following operating controls:

1. Solid state, chilled water temperature controller that controls electronic guide vane

operator. Locate temperature sensor in leaving chilled water, remote from chiller.

2. Anti-cycling minimum off timer prevents compressor from short cycling.

3. Demand limit device to manually set maximum current infinitely between 40

percent and 100 percent of full load amperes.

4. Automatic start that determines demand for chilled water from proof of chilled

water flow and temperature differential between chilled water set point and supply

temperature.

G. Provide MODBUS RTU communication interface. Connect to existing Tracer System

and provide the same graphics and control points including, but not limited to, chilled

water and condenser water temperatures and flows, operating status, etc.

2.11 ELECTRICAL REQUIREMENTS

A. Remote Mounted Starter:

1. Remote from chiller, mounted in existing switchgear. Starter shall be provided by

electrical contractor. Refer to specification section 261839 – Medium-Voltage

Motor Controllers. All wiring for starter shall be by electrical contractor.

B. Motor terminal box: Bottom entry.

PART 3 EXECUTION

3.1 INSTALLATION

A. Install in accordance with manufacturer's instructions.

B. Provide for connection of electrical wiring between starter and chiller control panel, oil

pump, and purge unit.




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C. Install units on vibration isolation pads furnished with chiller.

D. Provide evaporator connections to chilled water piping.

1. On inlet, provide:

a. Thermometer well and thermometer.

b. Nipple and flow switch.

c. Pressure gage.

d. Shut-off valve.

2. On outlet, provide:


b. Pressure gage.

c. Shut-off valve.

E. Field insulate evaporator and cold surfaces.

F. Provide condenser connection to condenser water piping.

1. On inlet, provide:


b. Nipple and flow switch.

c. Pressure gage.

d. Shut-off valve.

2. On outlet, provide:


b. Pressure gage.

c. Shut-off valve.

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

H. Provide piping from chiller refrigerant relief to outdoors. Size as shown, or as

recommended by manufacturer.

3.2 SYSTEM STARTUP

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

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

C. Provide services of factory trained representative for minimum of 2 days to leak test,

refrigerant pressure test, evacuate, dehydrate, charge, start-up, and calibrate controls.

D. Supply initial charge of refrigerant and oil.

E. Demonstrate system operation and verify specified performance. Refer to Section 23

0593.




RMF NO.: 114019.B0


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3.3 FACTORY TESTING

A. An acceptance and performance test shall be witnessed by up to three representatives of

the Authority. The Representatives of the Authority shall be given thirty (30) days

advance notice before acceptance and performance test. Manufacturer shall include the

cost of all travel expenses including transportation, lodging, and meals for three

representatives of the Authority. The test shall occur on a weekday only. The test shall be

continuous for a period in accordance with ARI Standards in which the full load output

and the operating efficiency will be determined in fifteen (15) minute increments at the

guaranteed conditions submitted with the bid. The test shall be performed in the chiller

manufacturer's facility and all required piping, electrically, and instrumentation shall be

provided by the chiller manufacturer.

B. Each chiller shall be factory performance tested with the proposed refrigerant under full

and part load conditions in an ARI certified test facility. The chiller manufacturer shall

supply a certified test report to confirm performance as specified. Performance tests shall

be conducted in accordance with ARI Standard 550/590 procedures and tolerances.

Chiller shall not be shipped until the test report has been approved and accepted by the

Authority.

C. During the test, all machinery performance data including but not limited to oil pressures,

gas pressures, and component temperatures shall be recorded at fifteen (15) minute

intervals and compared to standard conditions supplied by the manufacturer. If at any

time during the test, the recorded machinery performance data is in excess of the standard

conditions, the test will be considered not valid and the test shall be restarted for an

additional period.

D. If an unacceptable performance test is determined by the Authority or Engineer,

additional subsequent test(s) will be required. The complete cost of the additional test(s)

requested or caused by equipment operating condition exceeding standard conditions or

not meeting the overall operating efficiency, shall be the responsibility of the Chiller

Manufacturer. The additional cost includes those cost incurred by the Authority, the

Installing Contractor, and the design engineer to witness the additional test(s).

E. The equipment will be accepted if the test procedures and results are in conformance with

ARI Standard 550/590.

F. Noise levels shall not exceed ARI 575 noise level requirements. If the specified noise

levels are exceeded the chiller shall be unacceptable.

3.4 TRAINING AND SERVICES

A. Provide the services of a factory-authorized service representative to provide startup

service and to demonstrate and train the Authority's maintenance personnel as specified

below

B. Startup Service:




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1. Evacuate, dehydrate, and vacuum pump and charge with R-123 refrigerant. Leak

test in accordance with manufacturer's instructions. Test and adjust controls and

safeties. Replace damaged or malfunctioning controls and equipment.

2. Perform lubrication service, including filling or reservoirs, confirming that

lubricant is of the quantity and type recommended by the manufacturer.

3. Do no place chillers in sustained operation prior to initial balancing of mechanical

systems.

C. Training:

1. Train the Authority's maintenance and operating personnel on startup and

shutdown procedures, troubleshooting procedures, servicing, and preventative

maintenance schedule and procedures. Review with the Authority's personnel the

data contained in the operating and maintenance manuals.

2. After the mechanical contractor places the entire mechanical system in proper

operating condition, the chiller manufacturer shall provide thorough on-site

training for the Owner's designated personnel. Training shall be performed by

qualified service staff who are familiar with the project and the chiller equipment

specified. The manufacturer shall provide both classroom and field instruction as

required. Instruction shall, at a minimum, include the following:

a. Complete operation and maintenance of the chiller, including all ancillary

equipment.

b. Complete instruction relating to the chiller controls.

c. Review of operation and maintenence manuals.

d. Review of spare parts and special tools.

3. The manufacturer shall include a minimum of five days (both morning and evening

shifts) of training.

4. Schedule training with the Authority at least 30 days prior to startup.

PART 4 CONTRACTOR QUALITY CONTROL

4.1 CONTRACTOR QUALITY CONTROL REQUIREMENTS

A. Required quality control, testing and inspection for each item of work during all phases

of construction, from submittals, through procurement, fabrication, installation, start-up,

testing and balancing, and final acceptance are noted below:

1. Forward factory pressure and overspeed test results for approval, prior to shipping.

2. Factory Performance Test chillers prior to shipment. Forward successful test

reports prior to shipment. Authority will attend factory test.

3. Provide manufacturer's representative start up and initial test report to Authority

for review.

END OF SECTION


Task 02 – Central Utility Plant Modifications


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MEDIUM-VOLTAGE MOTOR CONTROLLERS 261839 - 1

SECTION 261839 - MEDIUM-VOLTAGE MOTOR CONTROLLERS

PART 1 - GENERAL

1.1 RELATED DOCUMENTS

A. Drawings and general provisions of the Contract, including General and Supplementary

Conditions and Division 01 Specification Sections, apply to this Section.

1.2 SUMMARY

A. Section includes 4,160 volt general purpose indoor medium-voltage motor controller, to be

retrofitted in existing motor controller assembly.

1. Full-voltage magnetic controllers.

2. Instrumentation.

3. Auxiliary devices.

1.3 ACTION SUBMITTALS

A. Product Data: For each type of controller. Include shipping and operating weights, features,

performance, electrical ratings, operating characteristics, and furnished specialties and

accessories.

B. A copy of the submittals shall be provided to the chiller manufacturer as coordinated by the

COTR for each submittal. Starters shall be subject to approval by the chiller manufacturer to

meet equipment operation requirement

C. Shop Drawings: For each controller include the following:

1. Show equipment features, and ratings. Include the following:

a. Each installed unit's type and details.

b. Factory-installed devices.

c. Enclosure types and details.

d. Nameplate legends.

e. Short-circuit current (withstand) rating of each unit.

f. Continuous current rating and interrupting rating of each unit.

g. Features, characteristics, ratings, and factory settings of each installed controller

and installed devices.

h. Cable terminal sizes.

i. Specified optional features and accessories.

2. Schematic Wiring Diagrams: For power, signal, and control wiring for each installed

controller.




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3. Interconnection diagrams for each controller.

4. Source quality control reports.

5. Drawings for front, side and plan views.

6. Motor protection relay data, diagrams and schematics.

7. Fuse time-current characteristic curves.

8. Key interlock scheme drawing and sequence of operations

9. Medium voltage motor controller manufacturer shall coordinate with Chiller

manufacturer and shall submit a coordinated schematic diagram showing motor

controller and chiller control panel interconnections and associated devices. The

components/wiring shall meet the requirements of Trane Specification # S6516-0513

(Rev. K, dated August 2011).

1.4 CLOSEOUT SUBMITTALS

A. Operation and Maintenance Data: For all installed devices, and components to include in

emergency, operation, and maintenance manuals. In addition to items specified in

Section 017823 "Operation and Maintenance Data," include the following:

1. Manufacturer's Record Drawings: Include field modifications and field-assigned wiring

identification incorporated during construction by manufacturer, Contractor, or both.

2. Manufacturer's written instructions for testing and adjusting controller.

3. Manufacturer's written instructions for setting field-adjustable overload relays...

4. Manufacturer's written instructions for testing, adjusting, and reprogramming motor

protection relay.

5. Manufacturer's written instructions for setting field-adjustable timers, controls, and

status and alarm points.

1.5 MAINTENANCE MATERIAL SUBMITTALS

A. Furnish extra materials described below that match products installed and that are packaged

with protective covering for storage and identified with labels describing contents.

1. Power Fuses: Equal to 10 percent of quantity installed for each size and type, but no

fewer than three of each size and type.

2. Control Power Fuses: Equal to 10 percent of quantity installed for each size and type,

but no fewer than two of each size and type.

3. Indicating Lights: Two of each type and color installed.

4. Auxiliary Contacts: Furnish one spare for each size and type of controller installed.


A. Testing Agency Qualifications: Member Company of NETA or an NRTL.

1. Testing Agency's Field Supervisor: Currently certified by NETA to supervise on-site

testing.




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B. Manufacturer: Company specializing in medium voltage metal-enclosed motor controller

with at least five years documented experience. The manufacturer of the motor controller

must be the same as the manufacturer of the no-load disconnect.

C. Electrical Components, Devices, and Accessories: Listed and labeled as defined in

NFPA 70, by a qualified testing agency, and marked for intended location and application.

D. Comply with NFPA 70.

1.7 DELIVERY, STORAGE, AND HANDLING

A. Equipment shall be handled and stored in accordance with manufacturer’s instructions. One

(1) copy of these instructions shall be included with the equipment at time of shipment.

1.8 PROJECT CONDITIONS

A. Environmental Limitations: Rate equipment for continuous operation under the following

conditions unless otherwise indicated:

1. Ambient Temperature: Less than 0 deg F or exceeding 104 deg F, with an average

value exceeding 95 deg F over a 24-hour period.

2. Ambient Storage Temperature: Not less than minus 4 deg F and not exceeding 140

deg F.

3. Humidity: Less than 95 percent (noncondensing).

B. Interruption of Existing Electrical Service or Distribution Systems: Do not interrupt

electrical service to, or distribution systems within, a facility occupied by Owner or others

unless permitted under the following conditions, and then only after arranging to provide

temporary electrical service according to requirements indicated:

1. Notify COTR no fewer than two weeks in advance of proposed interruption of electrical

service.

2. Indicate method of providing temporary electrical service, if required.

3. Do not proceed with interruption of electrical service without COTR’s written

permission.

4. Comply with NFPA 70E.

C. Product Selection for Restricted Space: Drawings indicate maximum dimensions for

existing motor control assembly including clearances between adjacent surfaces and other

items. The selected controller and accessories shall fit in existing compartment of the motor

control assembly. Schneider Electric field services representatives shall obtain field

measurements required for the manufacturing of the product.

1.9 COORDINATION

A. Coordinate features of motor controller and accessory devices with remote pilot devices and

control circuits to which they connect.




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B. Coordinate features, accessories, and functions of each controller with ratings and

characteristics of supply circuits, motors, required control sequences, and duty cycle of

motors and loads.

1.10 WARRANTY

A. Special Warranty: Manufacturer's standard form in which manufacturer agrees to repair or

replace medium voltage motor controller that fails in materials or workmanship within

specified warranty period.

1. Warranty Period: Five years from date of Substantial Completion.

PART 2 - PRODUCTS

2.1 MANUFACTURED UNITS

A. Manufacturers: The Medium Voltage Motor Controller shall be Toshiba JK OEM power

cell drawout type retrofit kit to be installed in existing Square D type MOTORPACT

motor controller assembly. The retrofit kit shall include, but not limited to, the following

components which shall be furnished, mounted and connected within the existing motor

controller compartment:

1. Fused vacuum contactor, withdrawable

2. Power fuses, current limiting

3. Isolation switch with external handle

4. Mechanical and electrical interlocks

5. Door interlock bracket

6. Current transformers, multi ratio

7. Control power transformer

8. Low voltage controls including control circuit fuses, low voltage door electrical

interlock, start & stop push buttons and indicating lights

9. Set of insulated power bus and ground bus (copper), barriers and compartment door

10. Terminal blocks and wiring

11. Provisions for terminating power cables

12. Microprocessor based, multi-function Motor protection relay

2.2 MOTOR CONTROLLERS

A. Medium-voltage motor controllers consisting of an assembly of contactors, primary

disconnects, fuses, transformers, and control and instrument equipment shall be furnished as

specified in the articles which follow. Contractor shall be responsible for the coordination of

the contactors, current transformers, motor protection relays and current limiting fuses. The

equipment shall be designed for front accessibility only. In selecting suitable components,

the following points must be considered:




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1. Protection of motors against sustained overloads and locked rotor conditions by

opening of the motor circuit with the contactor by means of the overload relays.

2. Protection of fuses against sustained currents above their continuous ampere rating, but

below their melting value, by opening the circuit with the contactor by means of the

motor protection relay.

3. Protection of the motor feeder circuits within the interrupting limits of the contactors by

opening the circuits with the contactors by means of the motor protection relay and not

opening the circuits with the fuses.

4. Protection of the motor feeder circuits, contactors, current transformers, and motor

protection relay from the damaging effects of maximum fault currents, by opening the

circuits with properly sized current limiting fuses.

B. Contactors: Contactors shall be three-pole, single-throw, vacuum, drawout assembly

furnished electrically and mechanically complete. Contactors shall be rated 400 amperes

continuously with an interrupting capacity of 50 MVA at 5,000 volts, and shall meet a 60 kV

impulse level. Contactors shall be of the magnetically held-in type. When the coil circuit is

interrupted, the contactor shall open the motor feeder circuit. Unless otherwise specified or

indicated on the drawings, the operating voltage of contactor coils shall be 120 Vac. All

secondary device contact surfaces shall be silver to silver designed and fabricated to resist

burning and deterioration for the service in which they are intended. Each contactor shall be

furnished with a sufficient number of auxiliary contacts and auxiliary switch contacts to

provide all necessary interlocks for proper operation of the equipment. Not less than two

spare "a" and two spare "b" auxiliary contacts shall be furnished on each contactor. In

addition, mechanically operated auxiliary switches shall provide not less than eight spare "a"

and eight spare "b" contacts. The auxiliary switches shall be stationary and shall be mounted

in the motor controller section enclosure.

C. All auxiliary switch contacts shall be wired to terminal blocks for use with control circuits

where needed. The contactors shall be capable of carrying their rated full load current

continuously without exceeding the temperature rise as specified in the latest IEEE and

NEMA standards. The contactors shall be cooled by natural conduction, convection, and

radiation. All coils and relays which are part of or furnished with the contactor shall be

designed and rated for operation on the specified control system voltage.

D. Primary Disconnects: A three-pole externally operated disconnect shall be furnished for

disconnecting motor controller from the high-voltage primary bus. Opening of disconnect

shall automatically ground the starter high-voltage components, through stab contacts, to the

ground bus. In addition, opening of disconnect shall operate an automatic insulated shutter

to close the openings to the high-voltage bus. Mechanical interlocking means shall be

provided to prevent opening or closing of disconnect under load. The interlock shall also

prevent opening of the high voltage access door with the primary disconnect closed.

Provisions shall be made to allow padlocking of disconnect in both the open and closed

positions.

E. Fuses: Current limiting fuses shall be furnished to ensure positive interruption of faults to limit

the magnitude of short-circuit current and electro-mechanical stresses to values within the

design limits of the motor controller assembly components. In addition, the fuses shall

limit the surge voltage produced by short-circuit currents to less than twice that of the

nominal voltage rating. Fuses shall be furnished for protection of control power transformers,




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potential transformers, feeder circuits, and contactor equipment. Easy identification of blown

fuses shall be provided by positive action indicators. Fuses shall be designed to prevent

discharge of flame or gas when operated and shall not require discharge filters, fire boxes, special

vents, or reinforcing. Power fuses shall be mounted on the contactor drawout assembly and shall

be equipped with antisingle- phasing devices to open the contactor on a blown fuse and

prevent single-phasing of the load.

F. Bus Connections: Connections between the main buses and disconnecting devices,

instrument transformers, and contactors shall be furnished and installed with an insulating

cover equal to the insulation of the main bus. Al l mater ial required for fie ld

connection and insulation of bus and terminals shall be provided. Each motor controller

bus shall be tin plated copper and shall be capable of carrying rated current continuously

without exceeding temperature rise requirements specified in IEEE and NEMA

standards.

G. The motor controller section enclosure shall be provided with a hinged front door. Paint color

shall match that of existing motor controller enclosure.

2.3 INSTRUMENTS AND DEVICES

A. Control Power:

1. Control Circuits: 120-V ac; obtained from integral CPT, with primary and secondary

fuses, with CPT of sufficient capacity to operate integral devices and remotely located

pilot, indicating, and control devices.

a. CPT Spare Capacity: 50VA

b. CPT shall be 60kV BIL rated.

B. General Requirements for Control-Circuit and Pilot Devices: NEMA ICS 5; factory

installed in controller enclosure cover unless otherwise indicated.

1. Push Buttons, Pilot Lights, and Selector Switches: Heavy-duty, type.

a. Push Buttons: Shrouded types; momentary contact unless otherwise indicated

(600V rated).

b. Pilot Lights: LED types; push to test (600V rated).

c. Selector Switches: Rotary type.

d. Trane Model 5K11 – Interlock Relay

e. Trane Model 5K12 – Start Contactor

f. Trane Model 5K13 – Aux Run Interlock Relay

g. Additional Relays as indicated on the drawings.

h. Control circuit terminal blocks.

C. NC NO contactor auxiliary contacts.

D. Control Relays: Auxiliary and adjustable solid-state time-delay relays.




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E. Motor Protection Relay: A microprocessor based, multi-function motor protection relay

shall be provided with each controller. The motor protection relay shall provide, as a

minimum, the functions including time overcurrent protection, instantaneous overcurrent

protection, locked rotor protection, mechanical jam protection, phase loss/reversal

protection, phase unbalance protection, motor overload protection, instantaneous ground

fault protection, abnormal temperatures of phase winding and bearings protection, long

acceleration time protection, and time between starts protection. The unit shall accept eight,

10 ohm, three-wire RTD inputs for the abnormal temperature of phase winding and bearing

protection. The motor protection relay shall be SEL-710, or approved equal.

F. INSTRUMENT TRANSFORMERS

1. Instrument Transformers: Comply with IEEE C57.13.

a. Bus Potential Transformers: Secondary voltage rating of 208/120V and NEMA

accuracy class of 0.3 with burdens of W, X, and Y. Provide wye-wye winding

configurations. Ratios are as follows:

1) 5kV Switchgear: 20:1

2) Potential transformers shall be capable of supplying the burden of 3 Trane

secondary PT’s as described below plus 10% spare capacity.

b. Trane Secondary Potential Transformers: Trane part No. TRR-976. No

substitutions are permitted.

1) Burden resistor: 10K ohm + 10% load.

2) Accuracy: 0.3% over specified primary input voltage range @ 60Hz.

3) 120V AC input, 30V AC output; 4:1 ratio.

4) Temperature insulation rating: Class B, 130 degrees C.

5) The Electrical Contractor shall provide these potential transformers. A

total of three (3) potential transformers shall be installed in the medium

voltage controller section.

c. Relay Current Transformers: ANSI C200 minimum for all phase CTs.

1) Current Transformers: Current transformers shall be designed for use with

meters, relays and instruments in accordance with the latest ANSI and

NEMA standards. Current transformer thermal and mechanical limits

shall be coordinated with the short time rating of the motor controllers

with which they shall be used.

d. Trane Control Primary Current Transformers: Trane part No. TRR-00448, 200:5.

No substitutions are permitted.

1) These current transformers shall be installed in the starter on the load side

of the contactor, downstream of the capacitor connection point.

2) The ground required for these current transformers shall be kept separate

from the grounds of other current transformer circuits in the starter.




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e. Trane Control Secondary Current Transformers: Trane part No. TRR-975. No

substitutions are permitted.

1) The Electrical Contractor shall provide these current transformers. A total

of three (3) current transformers shall be installed in the medium voltage

controller section.

PART 3 - EXECUTION

3.1 EXAMINATION

A. Visually inspect controllers before installation. Reject controllers that are wet, moisture

damaged, or mold damaged.

B. Verify field measurements are as instructed by the manufacturer.

C. Proceed with installation only after unsatisfactory conditions have been corrected.

3.2 INSTALLATION

A. Schneider Electric field services representatives shall install the motor controller kit and

associated relays and devices in accordance with manufacturer’s instructions, applicable

requirements of the NEC and in accordance with recognized industry practices.

B. Bending of high-voltage cables should be avoided or minimized. All necessary bends should

meet at least the minimum radii specified by the cable manufacturer.

3.3 IDENTIFICATION

A. Comply with requirements in Section 260553 "Identification for Electrical Systems" for

identification of motor controller and control wiring.

1. Identify conductors, interconnecting wiring, and components; provide warning signs.

All wires shall have insulated sleeve wire markers at all terminations.

2. Label each cubicle with engraved nameplate.

3. Label each enclosure-mounted control and pilot device. Text size and font shall match

existing.

4. Mark up a set of manufacturer's connection wiring diagrams with field-assigned wiring

identifications and return to manufacturer for inclusion in Record Drawings.

3.4 CONNECTIONS

A. Comply with requirements for installation of conduit in Division 26 Section 260533

"Raceways and Boxes for Electrical Systems."




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B. Comply with requirements in Division 26 Section 260526 "Grounding and Bonding for

Electrical Systems."

3.5 STARTUP SERVICE

A. Engage a factory-authorized service representative to perform startup service.

1. Complete installation and startup checks according to manufacturer's written

instructions.

3.6 DEMONSTRATION AND TRAINING

A. Engage a factory-authorized service representative to train Authority's maintenance

personnel to adjust, operate, and maintain enclosed controllers.

B. Conduct training as specified under Division 1 Section "Demonstration and Training."

PART 4 - CONTRACTOR QUALITY CONTROL

4.1 FIELD QUALITY CONTROL

A. General: Comply with applicable standards of The InterNational Electrical Testing

Association (NETA) including Standard ATS, "Acceptance Testing Specifications."

B. Acceptance Testing Preparation:

1. Test insulation resistance for each enclosed controller, component, connecting supply,

feeder, and control circuit.

2. Test continuity of each circuit.

3. Perform mechanical operator tests.

4. Perform contact resistance test across each switch blade.

C. Test Objectives: To assure Motor Controller installation is operational within industry and

manufacturer's tolerances, is installed in accordance with Contract Documents, and is

suitable for energizing.

D. Testing agency: Arrange and pay for the services of an independent electrical testing

organization in accordance with the requirements of Division 01 Section "Quality

Requirements".

E. Schedule tests and notify COTR at least one week in advance of schedule for test

commencement.

F. Tests and Inspections:




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1. Inspect controllers, wiring, components, connections, and equipment installation. Test

and adjust controllers, components, and equipment.

2. Test insulation resistance for each enclosed controller element, component, connecting

motor supply, feeder, and control circuits.

3. Test continuity of each circuit.

4. Verify that voltages at controller locations are within 10 percent of motor nameplate

rated voltages. If outside this range for any motor, notify COTR before starting the

motor(s).

5. Test each motor for proper phase rotation.

6. Perform contact resistance test across each switchblade; report any contact resistance in

excess of 50 micro-ohms.

7. Verify key interlock operation if applicable.

8. Perform each electrical test and visual and mechanical inspection stated in

NETA Acceptance Testing Specification. Certify compliance with test parameters.

9. Correct malfunctioning units on-site, where possible, and retest to demonstrate

compliance; otherwise, replace with new units and retest.

10. Perform the following infrared (thermographic) scan tests and inspections and prepare

reports:

a. Initial Infrared Scanning: After Substantial Completion, but not more than 60

days after Final Acceptance, perform an infrared scan of each multipole enclosed

controller. Remove front panels so joints and connections are accessible to

portable scanner.

b. Instruments and Equipment: Use an infrared scanning device designed to

measure temperature or to detect significant deviations from normal values.

Provide calibration record for device.

c. Follow-up Infrared Scanning: Perform an additional follow-up infrared scan of

each multipole enclosed controller 11 months after date of Substantial

Completion.

d. Test Parameters:

1) Inspect with imaging equipment capable of detecting a minimum

temperature difference of 1○

C at 30○ C.

2) Equipment shall detect emitted radiation and convert detection radiation to

visual signal.

3) Thermographic surveys should be performed during periods of maximum

possible loading. Refer to ANSI/NFPA 70B, 2006 Edition, Section 21.17.

e. Corrective Actions:

1) Provide corrections in accordance with NETA ATS -2007, Table 100.18.

G. Motor controllers will be considered defective if they do not pass tests and inspections.

H. Reports:

1. The testing organization shall maintain a written record of observations and tests, report

defective materials and workmanship, and retest corrected defective items. Prepare a

written test and inspection report, including a certified report that identifies enclosed




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controllers and a scanning report. Include notation of deficiencies detected, remedial

action taken and observations after remedial action.

2. The scanning report shall include the following:

a. Description of equipment to be tested.

b. Discrepancies.

c. Temperature difference between the area of concern and the reference area.

d. Probable cause of temperature difference.

e. Areas inspected. Identify inaccessible and unobservable areas and equipment.

f. Identify load conditions at time of inspection.

g. Provide photographs and thermograms of the deficient area.

h. Recommended action.

3. Testing organization shall submit written reports to the COTR and Contractor.

END OF SECTION 261839