Amendment_0002.pdf

Offers must acknowledge receipt of this amendment prior to the hour and date specified in the solicitation or as amended, by one of the following methods:

(a) By completing items 8 and 15, and returning or (c) By separate letter or telegram which includes a reference to the solicitation and amendment numbers. 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. If by virtue of this amendment your desire to change an offer already submitted, such change may be made by telegram or letter, provided each telegram or letter makes reference to the solicitation and this amendment, and is received prior to the opening hour and date specified.

E. IMPORTANT: Contractor is not, is required to sign this document and return copies to the issuing office.

AMENDMENT OF SOLICITATION/MODIFICATION OF CONTRACT 1. CONTRACT ID CODE

2. AMENDMENT/MODIFICATION NO. 3. EFFECTIVE DATE 4. REQUISITION/PURCHASE REQ. NO. 5. PROJECT NO. (If applicable)

7. ADMINISTERED BY (If other than Item 6) CODE

STANDARD FORM 30 (REV. 10-83)

Prescribed by GSA FAR (48 CFR) 53.243

FACILITY CODE

9A. AMENDMENT OF SOLICITATION

NO.

9B. DATED (SEE ITEM 11)

10A. MODIFICATION OF CONTRACT/ORDER NO.

10B. DATED (SEE ITEM 13)

11. THIS ITEM ONLY APPLIES TO AMENDMENTS OF SOLICITATIONS

The above numbered solicitation is amended as set forth in Item 14. The hour and date specified for receipt of Offers is extended, is not extended.

12. ACCOUNTING AND APPROPRIATION DATA (If required) copies of the amendment; (b) By acknowledging receipt of this amendment on each copy of the offer submitted;

13. THIS ITEM ONLY APPLIES TO MODIFICATION OF CONTRACTS/ORDERS.

IT MODIFIES THE CONTRACT/ORDER NO. AS DESCRIBED IN ITEM 14.

CHECK ONE A. THIS CHANGE ORDER IS ISSUED PURSUANT TO: (Specify authority) THE CHANGES SET FORTH IN ITEM 14 ARE MADE IN THE CONTRACT ORDER NO.

IN ITEM 10A.

B. THE ABOVE NUMBERED CONTRACT/ORDER IS MODIFIED TO REFLECT THE ADMINISTRATIVE CHANGES (such as changes in paying office, appropriation date, etc.) SET FORTH IN ITEM 14, PURSUANT TO THE AUTHORITY OF FAR 43.103(b).

C. THIS SUPPLEMENTAL AGREEMENT IS ENTERED INTO PURSUANT TO AUTHORITY OF:

D. OTHER (Specify type of modification and authority)

Except as provided herein, all terms and conditions of the document referenced in Item 9A or 10A, as heretofore changed, remains unchanged and in full force and effect.

15C. DATE SIGNED

15A. NAME AND TITLE OF SIGNER (Type or print)

16C. DATE SIGNED

16A. NAME AND TITLE OF CONTRACTING OFFICER (Type or print)

14. DESCRIPTION OF AMENDMENT/MODIFICATION (Organized by UCF section headings, including solicitation/contract subject matter where feasible.)

PAGE OF PAGES

6. ISSUED BY CODE

8. NAME AND ADDRESS OF CONTRACTOR (No., street, county, State and ZIP Code) (X)

CODE

15B. CONTRACTOR/OFFEROR

(Signature of person authorized to sign)

16B. UNITED STATES OF AMERICA

(Signature of Contracting Officer)

NSN 7540-01-152-8070

Previous edition unusable

7PQD

Shawna Villarreal, Contracting Officer

See the attached. Proposal due date has been changed from 6/22/17 to 6/29/17 at 2:00 PM CDT.

7PQD

ACQUISITION MANAGEMENT DIVISION

ACQUISITION ENERGY & ACQUISITION SUPPORT

BRANCH

819 TAYLOR ST RM 12B01

FORT WORTH TX 6102

ACQUISITION MANAGEMENT DIVISION

ACQUISITION ENERGY & ACQUISITION SUPPORT

BRANCH

819 TAYLOR ST RM 12B01

FORT WORTH TX 6102

EQ7PMD-17-0035

GS-07-P-17-HT-C-0005

1 59

6/21/2017

5/24/2017

Amendment No. 2 – Solicitation No. GS-07-P-17-HT-C-0005 for Cooling Tower Removal & Installation at the Cabell Federal Building/Courthouse

This amendment is issued to provide a revised SOW dated 06/21/2017, Exhibit C – version 20170621, a revised Document C101_The Agreement and to respond to questions.

1. Does the TAC Vista and Niagara need to be programmed concurrently. Yes. Due to the complexity of the DDC Integration at this site, there shall be close coordination when reestablishing/adding points to the Xenta LON 401 controller operating the SOO of the cooling towers and the plant. A Xenta 913 Modbus translators, Vista TACOS Server and Niagara AX JACEs make up the supervisory controls layer and should also be considered with the DDC programming of this project. The O&M Contractor Northern Management has two highly qualified technicians that keep the BAS integration operational and should be the GCs 1st choice when making any changes to the BAS at this site. I’d encourage the bidding contractor to confirm with GSA’s O&M contractor Northern Management on site. The POC Project Manager can be reached at 817 233 3357, 214 767 2254. The O&M BAS Subcontractor(s) certified to work on the TAC and Niagara systems are as follows:

2. May I request some information on the Cabell Cooling Tower (Current draw, height, width, depth, max weight, nameplate information)? Total tower dimensions are 25’D X 75’W X 23’6”H with additional 6’ velocity stack and an operating weight of 38,500lbs per cell Data plate unavailable

3. I was wondering if the floor plans/blueprints or any associated schematics are available upon request. Will be available to the awarded contractor

4. May I confirm how many existing lighting fixtures there are? We are estimating there to be 210 fixtures; however, it is the contractor's responsibility to confirm the actual numbers.

5. What is the new sequence of operations for the condenser water system? How will the plant sequence function with reducing the quantity of bypass valves from 3 to 1? Use SOO referenced by the SOW provided in this contract solicitation.

6. Is it possible to provide screenshots of the existing BAS graphics that will require changes? See Illustrations

7. What are the existing pipe sizes that isolation and bypass valves will need to be sized for? Bypass shall be no less than 4” less than the main supply and return pipe size. The manual operated isolation valves need to be the same size as existing valves they are replacing. The 3 each new automated isolation valves (one per tower) shall be sized in accordance to the manufacturer's size for the new tower.

8. What are the existing BAS controllers that we will need to be serving? Specifically, which model of Xenta controllers? A TAC Xenta 401 controller is controlling the existing cooling towers. The programming tool TAC Menta installed on the TAC OS Vista Server in the O&M Office is used for programming the LON SNVTs on the Xenta 401s and exposing the SNVTs to the MODBUS points network on the TAC Xenta 913s for export to NIagara. TAC Menta engineering software is installed and running is connected on the TaC Vista Server, using the Programming Serial Kit cable (part no. 0-073-0920), to the RS232 port of the TAC Xenta controller loaded. This is described in the Engineering Applications in TAC Menta manual.

9. Where are the current locations of the existing BAS controllers? Specifically, JACE locations and quantities, Xenta controllers and quantities. The current locations are in or adjacent to the mechanical spaces where the equipment is being changed out.

10. What are the existing DDC devices currently serving the central plant? For instance: how many immersion temperature sensors, valves, etc. An IO summary would be advantageous. Existing Cooling Tower Points list

11. What DDC devices are associated to specific controllers Xenta controllers? The DDC devices are but are not limited to the Cooling Tower VFDs, condenser water temperature sensors, water meters (makeup and blowdown) and DDC valve actuators.

12. What I/O is currently being used on the Xenta controllers?

13. Will graphical adjustments need to be made in the Vista and Niagara BAS’s? Yes, for building operations/engineering purposes, both the TAC Vista and the Niagara Graphical User Interface .px files will need to be modified simultaneously to prevent DDC errors.

14. Will the BAS be responsible for any of the following misc. monitoring points?

o CT Fan Vibration Switches -Yes o CT Basin Heater Temperature- Yes

15. Does the current BAS system have a FIFO Jace History Utility Function in place and functioning? Is there an existing graphical page tied to this function? Yes, each graphic page has a graphical history trend link to the specific device and sensors associated with the equipment. See the example on question #3.

16. What are the existing AMS point logs? Please see 1.05, D

17. Is the intent to re-use all existing DDC sensors or provide new? Please consult the provided SOW. Re-use existing sensors with exception of when new added sensors are called out in the SOW.

18. 1.01 note E states that BACnet shall be used. Please advise to abide by this requirement. After further internal investigation, no, this is not a requirement of this solicitation. Please see the revised Exhibit C.

19. 1.01 note G states that more than one protocol shall not be used at the same time.

Please advise how to abide by this requirement. Yes, this is a requirement of this solicitation and we do not want to introduce another protocol other than LON, Modbus, and the Niagara Framework. Therefore, do not add a BACnet VFDs or BACnet unitary controllers (for example) to the site’s BAS architecture. Utilyze LON cards on the Cooling Tower VFDs.

20. 1.03 note A states that physical and virtual points shall be BACnet. Please advise how to abide by this requirement. After further internal investigation, the Cabell Santa Fe Building is a TAC proprietary LON site, therefore, the VFDs shall be integrated via LON into the Xenta LON 401 unitary controllers, points mapped to the Xenta 913 Modbus translators, then mapped to the existing Niagara AX JACE serving the plant. Please see the revised Exhibit C.

21. 1.05 note C states that controls contractor shall provide Niagara 4 JACE 8000 as the supervisory controller’s license to 3.8 3 year minimum Tridium ELM compliant SMA.

Please advise how to abide by this requirement After further investigation, no, this is not a requirement of this solicitation. The existing Niagara AX JACEs shall be used to pick up the remapping of points from the TAC LON Xenta controllers operating the new cooling tower valve actuators, temp sensors, water meters, and VFDs. Please see the revised Exhibit C.

22. 1.05 note C sub section 3 states “In any case, “GSA REGION 7” shall maintain the right to direct contractor to modify any software license, regardless of supplier, as desired by “GSA REGION 7” The Contractor shall not install any “brand specific” software, applications or utilities on Niagara Framework based devices. Please advise how to abide by this requirement. Yes, this is a requirement of this solicitation. However, the TAC software and Niagara AX software is already installed on the site specific GSA BAS laptop and Vista server used to program the system. I’d encourage the contractor to confirm with GSA’s O&M contractor Northern Management on site. The POC Project Manager can be reached at 817 233 3357

23. 1.05 note C sub section 5 states that Contractor will furnish Enterprise Web Supervisory software. Is the intent to provide new supervisory software? No, GSA has an adequate number of Enterprise Web Supervisor software currently installed on the existing GSA site specific GFE BAS engineering tool laptop. That Government Furnished Laptop will be made available after being signed for on a GSA Form 525 and made available to the awarded contractor for DDC system programming use by the integration technician. The intent is for the contractor to provide all software (including engineering tools) and licenses for any new hardware installed and for that software and license to become the property of GSA upon completion of the project. In the case of the Earl Cabell/ Santa Fe site, the Niagara AX build rev 3.8 engineering software will already be made available to the contractor using the GFE GSA engineering laptop for integration. In addition, the engineering laptop will be provided with the TACOS engineering software that will be required for making changes and program modifications to the TAC Xenta LON controllers, TAC Xenta Modbus Controllers, and TAC Vista Server.

24. Can our subcontractor revisit the site? As stated in the solicitation, the site visit held on June 1 was the only opportunity contractors would have to visit the site.

Replacement of Cooling Towers and Pumps

TX0284ZZ

Cabell FB/CTHS 1100 Commerce St Dallas, TX 75242

Date: 21 June 2017 Prepared by Dana Ulanoff / Kenneth Raby

SCOPE OF WORK

The contractor shall provide all materials, supplies, labor, equipment and supervision, necessary to complete the demolition and replacement of cooling towers, pumps & variable frequency drives. Replacing a 3600 ton 3 fan (50 hp) field erected tower with three (3) each factory assembled 1110 ton single fan (50 hp) tower in two separate phases. Upon completion of the project, the equipment shall be connected to the common building condenser water piping and DDC (BAS) Building Automation System.

New Cooling Tower Requirements (for each Tower)

Equal or better than BAC, Evapco or Marley Cooling Towers Minimum 1110 tons 3 GPM per ton Maximum 50 HP Fan Motor

EWT/LWT (F) 96/86

78 degf Wet Bulb GPM- 3330 @1110 tons Motor Davit for each tower Belt Drive Cooling Tower Fan (No gear box on these towers) Service work platform for servicing fan motors and bearings. vibration switch(s), safety railings & ladders(OSHA Compliant) Electric sump heaters Fan Motors-Shaft Grounding Rings 316 stainless upper and lower section Cooling tower operating weight shall not exceed 48,000 lbs (per tower).

Cooling tower submittals shall be submitted with the proposal.

A. Demolition

1. Remove existing cooling tower.

2. Disconnect all electrical, controls, piping and associated equipment to tower. Remove all unused conduit/wiring back to panel boards and provide knock-out plugs at all unused openings.

3. Remove and dispose of properly cooling towers.

4. Remove existing stairs (see Exhibit F-Demo Stairs)

5. Note: Existing 50hp VFD’s will be reused for the new tower fan motors

6. The replacement of the tower shall be accomplished on a GSA preapproved weekend.

7. Note: Demolition of the 3600 ton field erected towers will not begin until the installation of the 1200 ton tower installation adjacent to the 3600 ton field erected is operational. This will allow at least one 1110 ton tower to be operational during the demolition of the 3600 ton field erected tower. When the 3600 ton field erected tower is removed, Installation of two (2) 1100 ton towers (total 2220 tons) can begin.

8. Remove 3 each condenser water pumps (100 HP). Only one (1) pump can be replaced at a time and the replacement new pump must be fully operational before the next pump can be replaced.

The pumps can be replaced before, during or after the cooling tower replacements.

9. Remove three (3) each chilled water pumps (50 HP). Only one (1) pump can be replaced at a time and the replacement new pump must be fully operational before the next pump can be replaced.

The pumps can be replaced before, during or after the cooling tower replacements.

10. Remove existing fire sprinkler system from towers and cap lines in interior of penthouse and seal exterior penetration.

B. Cooling Tower

1. Provide and install 316 stainless steel single fan (belt drive) cooling tower. (upper and lower section 316 stainless steel) Equal to or better than BAC, Evapco or Marley 316 stainless steel upper and lower section & motor work platform.

New Cooling Towers to include the following:

Premium efficiency inverter duty motors Reinforced basin for alternate steel support Ladder/safety cage/work platform Direct drive electric motors (inverter duty) vibration switch Electric sump heaters for each tower Provide one spare belt for this project.

2. Install work platform/rails around each tower at the base of each tower. Platform shall be fiberglass and properly braced and supported. Contractor can reuse the existing undamaged fiberglass platform material and railing material from the existing towers. Expect additional fiberglass/rail material will be required to complete the work platform. Minimum 4 feet in width. Install ladder from within one foot of roof to this work platform. Prime and paint the welds.

3. Tower support structure shall be in accordance to the tower manufacture’s installation requirement. (See Sec H)

4. Install properly sized water makeup line to each tower. Install new heat trace on these lines to protect from freezing. Insulate tower makeup water line. Cover insulation with metal/aluminum jacketing.

5. Proposal documents shall include new tower spec sheet.

C. New Condenser Pumps

1. Each new pump shall be vertical inline split coupled type.

2. The pumps shall be ANSI class 250 rated with a flow rate 3450

GPM/80 TDH. (See Exhibit A-CW Pump)

3. Each pump shall include new triple duty (flow/shutoff/check & a suction strainer with guide vanes).

4. Replace each supply and return manually operated butterfly valve.

5. Freezing the condenser water lines or installing a temporary “Hot

Tap” pipe plug for these valve replacements to prevent complete drainage of the condenser water lines can be utilized. (See Exhibit A, pump specifications) Should the need to drain the condenser water system become necessary to replace the pumps, the contractor shall include additional cost for the water treatment chemicals in their proposal. Whatever method is chosen to replace the manual valves on the condenser water pumps, include this in your price proposal.

D. Condenser Pump VFD’s

1. Provide & install new 100 hp VFD for each new condenser water pump. (total 3 each for the pumps) Each VFD shall be programmed to maintain the chiller’s design condenser water pressure drop. Replace each supply and return manually operated butterfly valve. Install pressure differential control device on each of the three chillers to control the new condenser water pumps/VFD. Integrate into the BAS.

E. New Chilled Water Pumps

1. Provide and install three (3) vertical inline split coupled type pumps (See Exhibit A-1, pump specifications).

2. The pumps shall be ANSI class 250 rated with a flow rate 2300

GPM/50’ TDH Motor HP 50.

3. Each pump shall include new triple duty (flow control/shutoff/check & a suction strainer with guide vanes).

4. Should the need to drain the chilled water system become necessary to replace the pumps, the contractor shall include additional cost for the water treatment chemicals in their proposal.

F. New Chilled Water Pump VFD’s

1. Provide & install new 50 HP VFD for each new chilled water pump (total 3 each for the pumps). Each VFD shall be programmed to maintain the chiller’s design chilled water pressure drop. Install pressure differential control device on each of the three chillers to control the new chilled water pumps/VFD.

Integrate into the BAS.

G. Gauges

1. Provide and install liquid filled pressure gauges (6 each) including all associated hardware to provide shut off and removal during gauge removal. Gauges will be installed on a manifold setup as shown in exhibits B-1 and B-2, one gauge per each pump across the strainer and on discharge side of the pump (3 locations).

H. Tower Bypass Valve

1. Replace one tower bypass valve. Only one will be required for the entire towers. One per tower is not required. The bypass will be installed on the main condenser water supply and return at the western most cooling tower (see Exhibit E-CT Bypass Location). New tower condenser water bypass valve shall have a DDC actuator and be integrated into the TAC and Niagara BAS. This valve shall be reflected on the Niagara BAS tower graphics page.

Valve/actuator shall have a feedback signal to reflect valve position on the BAS Niagara graphics page.

I. Cooling Tower Automated Isolation Valve

1. Install new modulating DDC valve/actuator one per tower on the line feeding the tower’s hot deck. This valve/actuator shall open when tower is enabled and close when tower is disabled. These will be connected to the TAC and Niagara BAS and require a feedback signal to the TAC and Niagara BAS.

The valve position shall indicate on the Niagara graphic from the actuator feedback signal.

J. Equalizer Line

1. Install equalizer line between each tower. This equalizer line shall be sized in accordance to the manufacture’s recommendation.

2. Install a manual operated butterfly valve between each equalizer line (4 total).

3. Install a 4” full port ball valve on the bottom side of the equalizer line on each side of the butterfly valve within two feet of the butterfly valve.

4. Provide and install a 4” inch pipe plug for each of the four ball valves. All new piping shall be primed and painted to match existing color scheme.

K. The Tower Support Structure

1. The tower support structure shall be prepared as per the tower manufacture’s design to properly support the tower.

2. This support shall be cleaned, primed and painted prior to tower be set on top.

3. Each tower shall be fastened to this structure using the proper hardware recommended by the tower manufacture.

4. Each tower shall have the same elevation at the sump.

5. Replace wall brace to match existing (Exhibit G-Match Wall

Brace) that is needed as a result of stairwell mentioned in section A being demo-ed.

L. Cooling Tower Manufacture’s Verification and Warranty

1. After the completion of the three (3) towers, the tower manufacturer’s representative shall verify fan(s) are properly balance and within acceptable vibration approved by the manufacture.

2. Each tower will have a two year full warranty for parts, motors and entire tower including labor.

3. The tower manufacture authorized representative will verify the tower is installed in accordance to the tower manufacture’s installation guidelines and provide GSA’s Project Manager a written statement of their findings within two weeks after each tower is completed.

4. The awarded contractor for this project is responsible for all costs associated with making any discrepancies (if any) to correct the deficiencies.

M. Cooling Tower Electrical

1. Provide and install all necessary and properly sized electrical conduit and electrical wiring for new tower.

2. Contractor will be responsible to verify existing electrical power and/or circuit breakers will handle new tower’s electrical voltage and amperage.

3. Provide and install properly sized transformers, electrical panel(s) and circuit breakers for new tower as needed.

Provide new panel schedules reflecting work accomplished.

4. Connect the existing 50 hp variable frequency drives (VFD) to new cooling tower fan motors Replace/install electrical service to new VFD’s, tower sump heaters, vibration switches and fan motors.

N. Makeup Water Line and Meters

1. Install properly sized water makeup line to each tower.

2. Install new heat trace on these lines to protect from freezing.

Insulate tower makeup water line.

3. Cover insulation with metal/aluminum jacketing.

4. Install new pulse makeup and blow down water meters.

5. Connect new meters to the building Niagara BAS

6. Set up 14-day FIFO on the JACE history utility and develop a pre-built history on the cooling tower page.

7. Map points to AMS (Advanced Metering System Enterprise

Niagara AX Web supervisor) for long term history collection.

O. Condenser Water Outage

1. Work that requires a condenser water outage shall be accomplished after hours/weekends and shall require the building’s O&M mechanic to be onsite.

2. The successful contractor for this project shall be responsible for compensating the O & M to be on site during these periods. This includes weekend crane lifts.

3. All O&M costs shall be included in the proposal.

P. Lighting

1. Contractor to remove and replace existing light fixtures with new

L.E.D. light fixtures in the penthouse, chiller, boiler, and generator mechanical room(s). The new L.E.D. light fixtures shall be integrated into lighting controls (if applicable), and maintain existing emergency battery B/U capabilities. L.E.D. linear retrofits are not an acceptable option for this project.

Q. Other Specifications and Requirements

1. Valves connections, accessories and operators

a. Shall provide threaded ends for valves 2.5 inches and smaller.

b. Shall provide flanged or grooved ends for valves 3 inch and larger.

c. Butterfly valves (isolation valves) shall provide a lever handle, infinitely adjustable with lock nut and memory stop.

d. Shall provide hot dipped galvanized extension stems, valve handles and gear actuators outdoors.

e. Shall provide weatherproof galvanized cast iron gear operators for valves mounted outdoors.

2. Automatic isolation valves shall include the following:

a. Type of end fitting: pattern to mate with ANSI 125/250 flange.

b. Cast iron GG25 with stainless steel stem and ball.

3. Steel Pipe and fittings:

a. Steel pipe, DN 50 (NPS 2) and smaller: ASTM A 53, type S (seamless) or type F (furnace butt welded), grade B, schedule 40, black steel, plain ends.

b. Steel Pipe, DN 65 through DN 300 (NPS 2-1/2 through NPS 12): ASTM A 53, type E (electric-resistance welded), Grade B, Schedule 40, black steel, plain ends.

c. Steel Pipe Nipples: ASTM A 733, made of ASTM A 53, Schedule 40, black steel; electric-resistance welded for DN 65 (NPS 2-1/2) and larger.

d. Cast-Iron Threaded Fittings: ASME B16.4;

Classes 125 and 250. Malleable-Iron Threaded Fittings: ASME B16.3, Classes 150 and 300.

R. MATERIAL TECHNICAL SPECIFICATIONS

Where a particular manufacturer's product is specified, it is not intended to discriminate against other manufacturer's which are equal in quality of material, workmanship, appearance and function to those specified. Rather, it is intended to establish and indicate the desired standard of quality. If any tests are required to determine the equality of any substitutes, such tests shall be made by an independent authority as approved by the government. All expenses related to proposed substitutions shall to be paid by the Contractor. Proposed items are to be submitted with the proposal and shall be a basis for the award of the contract.

S. PRODUCT DATA AND SAMPLES

1. Product Data: Contractor shall submit one electronic set of tower product data including any valves, piping, insulation, BAS hardware, , catalog sheets, brochures, performance charts or other standard descriptive data provided by any Subcontractor, supplier or distributor. Product Data must be certified by the Contractor stating that it was reviewed and approved. Product to be used must be highlighted on the data sheet by the Contractor. Product Data used for construction must bear GSA’s stamp certifying final review and approval. No product shall be used that does not bear such stamp. Submittals shall be identified on a submittal register provided by the Contractor and transmitted using a transmittal letter.

2. Samples: Contractor shall submit physical samples establishing standards by which completed work is judged. Samples shall indicate color range, functional characteristics and shall represent exact material to be used on the project.

T. Building Automation System and Integration

1. All Bas requirements outlined in Exhibit C-vers 20170621 and Exhibit D-Point Naming shall apply to this section.

2. The new tower’s control system shall communicate with existing BAS (building automated system).

3. The BAS architecture consists of a proprietary LON Tour Andover Controls TAC Vista system running on a TACOS (TAC Operating System) server in the Northern Management O&M office.

4. The TAC Vista system is translated from proprietary LON SNVTs to Modbus points at the TAC field panels on Xenta 913 DDC controllers.

5. The BAS Modbus points are then mapped to a Niagara AX front end consisting of 11 JACEs hosting graphics, schedules, trends, and user accounts. The JACEs are networked behind the GSA firewall.

6. NOTE: The O&M contractor keeps two factory certified Niagara AX and TAC Vista technicians on contract that keep the BAS architecture/topology functioning behind the GSA firewall.

7. Replacement tower shall be wired to and communicate to the Building's TAC and Niagara JACE DDC Controller(s).

8. Contractor will be responsible to field verify the existing BAS and provide all necessary wiring, controls to integrate tower’s controls to BAS.

9. The BAS Integration contractor shall include any mapping and linking changes of the cooling tower.

10. On the graphics page of the building’s BAS including new piping, for the cooling tower.

11. The Contractor shall program the existing and any new feedback points using existing protocols intergraded into the existing BAS.

12. The new tower’s control system shall communicate with existing building automated system.

13. Contractor will be responsible to verify the existing BAS and provide all necessary V F D / V a l v e A c t u a t o r s wiring, controls, and/or communication cards (if needed) to integrate tower’s controls to BAS.

14. Automated valves shall provide reporting feedback on current status, history screens, and valve icons shall be visible on the Niagara BAS central plant page.

15. All analog histories of new tower points shall be recorded in 15 minute intervals and stored in the building JACE controller for 14 days as a FIFO.

16. All discrete point histories shall be recorded both as 15 minute interval, 14 day FIFO history logs but also as COV histories storing 100 intervals within the JACE.

17. All new cooling tower point histories shall be exported daily from the JACE to the hosting GSA BAS Server and to the GSA AMS Application for long term archival storage (match existing AMS point logs).

18. Provide the necessary equipment controllers and or expansion boards to incorporate sequence of operation along with new equipment into the BAS.

19. The integration contractor shall ensure 20% DDC controller flash drive space on TAC, Xenta, and Niagara JACEs at the end of the project for future expansion or security firmware updates, provide before/after screed shots as evidence to GSA. Provide additional DDC controllers if necessary.

20. The integration contractor shall ensure DDC communication baud rates do not decline due to work within the scope of work. Provide before/after network traffic baud rate throughput screen captures as evidence to GSA. (See Exhibit C-vers 20170621).

U. Integration Technician Requirements

1. Security Requirements: Contractor personnel performing work on the BAS integration under this contract must possess HSPD- 12 Clearance, GAC Card, GSA network access and Niagara BAS access from GSA in order to access GSA secured networks and sites. The integration work shall be performed with the use of a GSA BAS Engineering tool laptop with TAC and Niagara AX engineering software currently installed. The BAS laptop shall be hand receipted from the GSA property manager on a GSA Form 525 CHAIN OF CUSTODY letter. The GSA BAS laptop is the only laptop that shall be used to perform the scope of work. Private company BAS programming laptops are prohibited. Following government acceptance of the project, the GSA BAS laptop shall be returned to the GSA property manager in order to receive final project payment.

2. Integration Technician: Integration technician performing installation shall be certified on the Niagara AX JACE for both installation and maintenance of the system and shall have a minimum of 3 years’ experience performing the Niagara required tasks and 5 years total BAS experience. Additionally, the integration technician shall have 5 years minimum experience on Tour Andover Controls for both installation and maintenance of the system. The Contractor shall provide with their offer the integration technician’s resume and certification documentation.

V. Special Instructions

1. Contractors shall submit proposal with a detailed cost breakdown. Cost Breakdown shall be submitted in CSI Master Format 2010. Proposal shall include make and model of all proposed equipment. Cooling tower selection shall include dimensions, operating weight and performance rating within submitted proposal. Cooling tower selection shall be submitted with the proposal. Cooling tower selection submitted with the proposal shall be equal to or better than the cooling tower specifications in the exhibit.

2. Contractor is responsible to comply with the “Buy American Act”. Buy American Act provides domestic construction material be used in performing this contract.

3. Contractor will be responsible to request and furnish all required overhead and/or road blocking permits from the City and or electrical/utility providers when using a crane at this location if the city street requires a blockage when off-loading the tower.

W. Performance Requirement

1. The Contractor shall field verify existing conditions prior to any demolition.

Contractor shall take pictures of any roof damage prior to start of any work and is required to submit to the GSA Project Manager. Any roof damage caused by this project shall be repaired by the contractor. The roofing repair contractor must be approved by the GSA Project Manager.

2. The Contractor shall be responsible for coordinating all activities of subcontractors. This responsibility includes coordination of;

preparation of shop drawings preparation of shop drawings produced by different subcontractors where their work interfaces or may potentially conflict or interfere and the installation of such work; scheduling of work by subcontractors and use of the Project site for staging and logistics.

3. The contractor shall reinstall existing access panels; etc., back to their original location and condition after all work is completed.

4. Safety Plan: Contractor shall submit a site specific plan including hazardous communication plan list of the flow of communication in case of emergency, lock-out / tag-out with narrative that explains lock-out / tag out procedures, AHA / JHA’s for major activities, crane safety plan (if applicable) for crane erection and use. Include preferred location for crane set up, operator certification credentials, and crane inspection/certification documentation within thirty (30) of Notice to Proceed.

5. Contractor to provide a work plan within thirty (30) days of Notice to Proceed (NTP) identifying equipment access plan, CHWP / CWP piping tie-in and electrical tie-in for review and acceptance prior to installation.

6. Contractor to provide schedule of values within thirty (30) days of Notice of Proceed (NTP). The Contractor shall prepare and submit for approval a detail cost breakdown of the Contract price, to be referred to as the Schedule of Valves, assigning values to each component of the Work.

i. Values must include all direct and indirect cost, although a separate value for bond cost may be established.

ii. The Schedule of Valves must contain sufficient detail to enable the Project Manager to evaluate applications for payment.

iii. Before submitting a request for payment, the Contractor shall schedule a pencil copy review with the Project Manager for review and acceptance.

7. Once the tower is fully operational the Contractor shall be responsible to provide a report to GSA Project Manager for the following: Re-balance water flow, Manufacturer’s Start-up Check-list and Commissioning (all adjustments and balancing to the system shall be in accordance with manufacturer requirements)

X. SECURITY CLEARANCE REQUIREMENT

All Contractor personnel performing working on premises at GSA owned and operated buildings are required to pass a security background check conducted by the United States Office of Personnel Management (OPM). No Contractor employee will be allowed to perform work on the building premises until employee has been determined to be suitable for hire by OPM. Contractor shall apply for Personal Identification Verification (PIV) cards for job superintendent and one other designated employee for after normal hours escorting needs. Final payment will not be made until all security badges are returned to the Contracting Officer.

After contract award, GSA will submit the Contractor Information Worksheet

(CIW) template to the Zonal Help Desk. This information will be utilized by the Zonal Help Desk as a template for the contractor. The Zonal Help Desk will then provide the contractor with a RO Approval List worksheet. The contractor will update this worksheet with all of the contractors expected to work on the GSA contract. The list is submitted by the contractor to the Requesting Official (COR), who then identifies the type of investigation and credential required, and submits with approval to the Zonal Help Desk. The RO Contractor Approval List must contain the name(s) of the applicant proposed for each CIW provided; otherwise, the CIW will not be processed until such time the RO Contractor Approval list is updated.

The list is required to be updated each time an individual leaves the contract, or new individuals are added. The list must then be resubmitted from the RO to the Zonal Help Desk prior to any new CIW submissions; otherwise, the CIW will not be processed until such time the RO Contractor Approval list is updated.

WORKING HOURS

Work not impacting normal building occupancy shall be performed during normal business hours Monday through Friday 7:00 am to 6:00 pm. Any work affecting normal building occupancy, including all crane lifts, needs to be scheduled after normal business hours/weekends and approved by GSA building manager. After normal business hours the facility’s O & M technician must be on site. This includes work accomplished on the weekend and during the crane lifts. Include your costs for the O & M attendance in your proposal. The awarded contractor for this project is responsible for paying the O & M contractor.

PERIOD OF PERFORMANCE

All work shall be completed within 45 calendar days after cooling tower delivery. It is estimated that it will take 6-10 weeks to manufacture the tower. A partial NTP will be issued to place the order on the equipment upon approved submittals. Once the first new tower is operational, the remaining two towers must be operational in four weeks. (Operational not necessarily completed.) The Full Notice to Proceed will be issued once the cooling towers are on-site/delivered. All work shall be completed within 240 calendar days of limited Notice to Proceed. A Limited Notice to Proceed (NTP) will be issued after bonds and insurance are accepted to authorize the contractor to order the equipment upon approved submittals. The contractor shall provide the GSA Project Manager a proof of purchase document for the approved equipment within 14 calendar days from the date the submittals were approved by the GSA project team.

Y. LIQUIDATED DAMAGES

If substantial completion is not achieved, the Contracting Officer may assess liquidated damages at a rate of $383.12 per day.

Z. PROJECT SCHEDULE

Contractor shall submit to the GSA Project Manager a project schedule within thirty (30) days of Notice of Proceed. The project schedule shall include a written narrative describing the major work activities, activities critical path and major constraints underlying the DP and logic, all tasks to be performed under this project, duration of each task and tentative date/s each task will be performed. Project schedule must be approved by the GSA Project Manager prior to performing any work under this project. The project schedule shall incorporate milestone events specifics in the Contract, including as applicable NTP, Substantial Completion and milestones related to specific work phases and site restrictions. The project schedule shall also include Contractor-defined milestones to identify target dates for critical events, based upon the Contractor’s chosen See Sec D of work. Microsoft Project or other similar format can be used for this schedule.

AA. EXTENSION OF TIME

If the Contractor requests an extension of the time for Substantial Completion, the Contractor shall base its request on analysis of time impact using the Project Schedule as its baseline, and shall propose as a new Substantial Completion date to account for the impact. The Contractor shall submit a written request to the Contracting Officer setting forth facts and analysis in sufficient detail to enable the Contracting Officer to evaluate the Contractor’s entitlement to an extension of time.

BB. General Construction Requirements

1. Keep work areas clean on a daily basis.

2. Remove debris from site on a daily basis.

3. Protect all existing walls and furniture from damage.

4. Contractor is responsible for all damages to government property caused by him/her and their subcontractors.

5. Contractor is responsible for all dimensions and quantities.

6. Contractor shall field verify all existing conditions prior to submitting a proposal.

CC. CONSTRUCTION WASTE MANAGEMENT PLAN SPECIFICS (AFTER CONTRACT

AWARD)

1. Fourteen days (14) from Notice to proceed, the Contractor shall submit to the Project Manager, a draft Waste Management Plan for mixed debris recycling to GSA approval. The plan shall include (but not be limited to) the following: List of the materials to be reused or recycled.

2. The Contractor will record and track the type and quantity, by weight or each material salvaged, reused, recycled or disposed throughout the project. The Contractor shall provide a Construction Management Waste Management Report upon request of Substantial Completion.

DD. Final Preparations

1. Contractor shall provide hands-on training at a minimum six (6) hours to training to GSA maintenance personnel. Training shall be accomplished on all newly installed equipment and the BAS changes.

2. Contactor shall provide two (2) sets of as-built drawings on compact disk (CD). As-built m e c h a n i c a l a n d c o n t r o l drawings shall be in Auto CAD format and shall illustrate all alterations performed under this contract. Final payment will not be authorized until all as-built drawings are provided.

3. Contractor shall provide three (3) copies of owner’s (O&M) manuals for the tower, makeup water meter, blowdown meter VFD and TAC/Niagara updated engineering save files neatly labeled and organized on CD/DVD-ROM disks.

4. Contractor shall return all GSA Badges and GSA BAS Engineering Laptop issued for this project. Final payment will not be authorized until all O&M manuals and badges are provided and returned.

PRE-PROPOSAL CONFERENCE

Interested parties must notify the Contracting Officer for further information about attendance and to confirm location, time and date. Only those parties who have notified the Contracting Officer and provided necessary information in advance of the meeting will be allowed to attend. Contractors are encouraged to verify all existing conditions at the job site prior to proposing on the project. Failure to do so will not relieve the Contractor of any responsibility to properly estimate the cost of this project.

Note:

The following items will be addressed at the Pre-Proposal Conference and again at a Pre-work Conference:

1. On site storage.

2. Parking.

3. Use of elevators.

4. Access through secured area.

5. Contractor shall coordinate with the GSA mechanical maintenance

Contractor, for placing the fire alarm system in test mode prior to performing any work that may result in the activation of an alarm signal from alarm system, cutting, welding or other work that creates excessive dust.

Contractor is responsible for all costs associated with placing the fire alarm system in test mode. the fire alarm system including but not limited to:

connecting devices to fire

6. A GSA approved welding permit will be required before performing any cutting and welding. Contractor shall submit welding permit to the Project Manager for review and acceptance by the Building Manager at least 72 hours prior to cutting and/or welding activity.

7. Contractor shall be responsible for all quantities, measurements, correct installation of all items and for any damages to the building, items such as parked vehicles and surrounding areas.

8. All materials, equipment and supplies to be incorporated into work under the terms of this contract shall have been “NEW” and “UNUSED” at time of award.

9. Materials of equipment containing asbestos in any form shall not be incorporated into this project.

10. All material, workmanship and equipment shall be subject to the inspection and approval by the Contracting Officer Representative. All work unsatisfactorily performed shall be promptly corrected and made acceptable for the Government.

APPLICABLE PUBLICATIONS

A. Department of Labor:

1. Occupational and Health Standards: (29 CFR part 1926).

2. Safety and Health Regulations for Construction: (29CFR part 1518).

3. Federal Code:

All renovations shall be in accordance with the current design requirements as found in the Federal Construction & Safety Standard, and Third Party approved structure design package. Latest Edition of the following Codes/Regulations:

4. Fire Codes: All units shall meet or exceed all required Federal, State and Local Fire Codes.

5. Housing & Urban Development (HUD 24 CFR 3280).

6. National Electrical Code (NEC).

7. International Building Code (IBC).

8. International Mechanical Code (IMC).

9. International Plumbing Code (IPC).

10. American Society of Heating, Refrigeration and Air Conditioning (ASHRA).

11. Occupational and Safety Act (OSHA).

12. National Fire Protection Association (NFPA).

13. U.S. Environmental Protection Agency (EPA), “Mold Remediation in

Schools and Commercial Buildings”.

B. Manufacture, installation and testing shall comply with manufacturer’s instructions and standards. When more stringent requirements are call for either this S.O.W. or codes and regulations, the priority of precedence in compliance shall be:

1. Federal Requirements.

2. State Requirements.

3. Local Requirements.

4. Manufacturer’s Requirements.

5. Contractors Requirements

SUNSTAINABILTY

1. Green Purchasing:

i. The contractor shall refer to the “Green Procurement

Compilation” for all products being installed in federal facilities.

The Green Procurement Compilation can be found at https://sftool.gov/greenprocurement. The standards found in this compilation shall guide all product purchasing decisions as they relate to federal facilities.

ii. The use of the following standards (“Key Sustainable Product” or “KSP” standards) is mandatory for all contracts and task orders. See https://sftool.gov/green-products/1037/key-sustainable-products for more details.

a) Nylon Carpet: NSF 140 Gold certification and > 10% post-consumer recovered content.

b) Interior Latex Paint: < 50 grams per liter (g/L) VOCs post tint (i.e. SCAQMD Rule 1113 standard).

c) Gypsum Board: Greenguard Gold Standard or 0 g/L VOCs.

d) Acoustical Ceiling Tiles: Meets California Section

01350 standard for low-VOC materials and total recycled content > 20% and recyclable in a closed loop process and USDA Certified BioPreferred and Environmental Product Declaration (EPD) available.

e) Concrete (ready-mix and site-mix): > 25% fly ash or > 15% ground granulated blast-furnace (GGBF) slag

2. For each KSP listed, the Contractor shall submit proof of compliance to the CO or his designee prior to the installation of the product or material. The CO’s designee shall verify compliance.

If the KSP materials listed above are

i. not reasonably available within a reasonable period of time

ii. fail to meet the performance standards set forth in the specification or fail to meet reasonable performance standards of GSA; or

iii. are available only at an unreasonable price, only then can the Contractor use other types of products. In these cases the Contractor shall select products and materials, to the extent possible, which are the safest and most environmentally friendly. Exemptions must be submitted in writing and can only be approved by the CO

DISCLOSURE OF INFORMATION

1. Any information made available to the Contractor by the government shall be used only for the purpose of carrying out the provisions of this contract.

This information shall not be divulged or made known in any manner to any persons except as may be necessary in the performance of the contract.

2. In the performance of this contract the Contractor assumes responsibility for the protection of the confidentiality of government records.

3. The Contractor shall adhere to the requirements found in Part 24 of the Federal Acquisition Regulation, Protection of Privacy and Freedom of Information.

WARRANTY

1. All workmanship and materials shall be warranted for a period of not less than three hundred sixty five (365) days from date of acceptance by the Government (Standard Warranty) plus extended tower parts and labor warranty (1 year).

2. The Contractor shall provide a copy of warranty of items procured.

Warranty shall be in writing and shall include any conditions which may invalidate the warranty.

3. Warranty shall include procedures on how to exercise warranty rights.

Provide points of contact in order to get services required.

4. Standard warranty shall be all inclusive of parts, labor and materials, related coverage and additional costs, if any.

5. Contractor shall provide all applicable manufacturers’ warranties at time of completion.

END OF SCOPE OF WORK

20170621 Dallas Cabell Santa Fe Building

1.01 GENERAL BUILDING AUTOMATION DDC REQUIREMENTS

A. The Contractor shall provide and install a system which shall provide Direct Digital Control, Building Automation Functions interfacing with other microprocessor-based building subsystems, such as sub Chiller HMI (Human Machine Interface), VFD, and MCC (Motor Control Center) as specified. The Contractor shall furnish and install the necessary hardware, wiring, computing equipment and software as defined in this specification and as required to cause these systems to operate in accordance with the specified Sequence of Operation.

B. The BAS (Building Automation System) is an extension of the GSA Intranet, a U.S. Government Information Technology Network with Security Requirements mentioned within this specification.

C. The system shall operate stand alone at the field network level, building network level, and building supervisor network level. The system shall be networked on a WAN to a remote GSA server; however, in the event of a WAN network failure, or server failure, such condition shall…