W912QR21R0010-0002 - AMEND DFAS Chiller Replacement.pdf

CIVIL/OPS/ENVIRONMENTAL BR

ATTN: RENEE BOOTH

600 DR M L KING JR PL RM 821

LOUISVILLE KY 40202-2236

AMENDMENT OF SOLICITATION/MODIFICATION OF CONTRACT

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.

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

30-105-04EXCEPTION TO SF 30

APPROVED BY OIRM 11-84

STANDARD FORM 30 (Rev. 10-83) Prescribed by GSA

FAR (48 CFR) 53.243

Solicitation W912QR21R0010 for the DFAS Chiller Replacement at Wright-Patterson Air Force Base, OH is here amended as follows:

AMENDMENT 0002

a. This amendment modifies the Performance Work Statement (PWS) from the original solicitation to the revision dated 7 December 2020 and hereby incorporates Attachment 1 into the solicitation.

b. This amendment extends the submission deadline from 9 December 2020 to 16 December 2020 at 10:00 am (ET). Acknowledgment of receipt of this amendment is also due at that time.

1. CONTRACT ID CODE PAGE OF PAGES

1 2

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

16C. DATE SIGNED

BY

16B. UNITED STATES OF AMERICA15C. DATE SIGNED15B. CONTRACTOR/OFFEROR

(Signature of Contracting Officer)(Signature of person authorized to sign)

8. NAME AND ADDRESS OF CONTRACTOR (No., Street , County, State and Zip Code) X W912QR21R0010

X 9B. DATED (SEE ITEM 11)

09-Nov-2020

10B. DATED (SEE ITEM 13)

9A. AMENDMENT OF SOLICITATION NO.

11. THIS ITEM ONLY APPLIES TO AMENDMENTS OF SOLICITATIONS

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

Offer 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 1 copies of the amendment; (b) By acknowledging receipt of this amendment on each copy of the offer submitted;

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 you 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.

12. ACCOUNTING AND APPROPRIATION DATA (If required)

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

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

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)

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

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

10A. MOD. OF CONTRACT/ORDER NO.

2. AMENDMENT/MODIFICATION NO.

5. PROJECT NO.(If applicable)

6. ISSUED BY

3. EFFECTIVE DATE

07-Dec-2020

CODE

U. S. ARMY ENGINEER DISTRICT, LOUISVILLE

600 DR. MARTIN LUTHER KING, JR. PLACE

ROOM 821

LOUISVILLE KY 40202-2239

W912QR 7. ADMINISTERED BY (If other than item 6)

4. REQUISITION/PURCHASE REQ. NO.

CODE W912QR

FACILITY CODECODE

EMAIL:TEL:

W912QR21R0010

SECTION SF 30 BLOCK 14 CONTINUATION PAGE

SUMMARY OF CHANGES

SECTION SF 30 - BLOCK 14 CONTINUATION PAGE

The following have been added by full text:

ATTACHMENT 1

SECTION SF 1449 - CONTINUATION SHEET

SOLICITATION/CONTRACT FORM

The required response date/time has changed from 09-Dec-2020 10:00 AM to 16-Dec-2020 10:00 AM.

The following have been modified:

PERFORMANCE WORK STATEMENT

Performance work statement – REVISED 7 DECEMBER

(End of Summary of Changes)

P2:489541 DFAS Chiller #1 Replacement DSCC, Columbus, OH

SECTION 01 20 00.00 06

SECTION

01 20 00.00 06

PERFORMANCE WORK STATEMENT

REVISED: 7 DECEMBER 2020

(AMEND 0002)

1.0 PROJECT INFORMATION

1.1 GENERAL

The Contractor shall provide all labor, equipment, supplies and consultant services as required for the replacement of Chiller #1 at DFAS Building 21, DSCC, Columbus, OH to result in a complete and useable Facility.

1.2 SCOPE OF WORK

AMEND 0002**********************************************************

The scope of work is to provide and install a chiller to replace Chiller #1, valves on chilled water side, valves on condensing side, and three-way valve on condensing water lines at DFAS Building 21.

**************************************************************AMEND 0002

1.3 SITE LOCATION

This project is located in Building 21, at DSCC, Columbus, OH.

1.4 EXISTING SITE UTILITIES

1.4.1 The contractor shall verify the capacity of all utilities serving the building. Upgrading the existing utilities, (unless noted otherwise) outside the limits of construction, is not a part of this project.

1.5 NOT USED

1.6 NOT USED

1.7 PERMITS

The Contractor shall investigate and submit any permits necessary for the construction of this project. All permit applications shall be completed by the Contractor and provided to the Contracting Officer for submittal to the appropriate agency. Contractor shall pay all permit fees. Copies of all permits shall be provided to the USACE.

1.8 ENVIRONMENTAL REQUIREMENTS

1.8.1 Environmental Compliance: The contractor shall comply with the National Environmental Protection Act and all other Air Force Environmental regulations.

1.8.2 Dust Control: Contractor shall maintain all work areas free from excess dust to such reasonable degree as to avoid causing a hazard to base personnel or surrounding facilities. Dust control shall be performed as the work proceeds and whenever a dust nuisance or hazard occurs.

1.8.3 Asbestos: No asbestos containing material shall be used.

1.8.4 SDS Sheets: A Safety Data Sheet (SDS) is required for all building materials except for wood, glass, or steel. The SDS will be submitted to the Contracting Officer within seven (7) calendar days after the NOTICE TO PROCEED.

1.8.5 Hazardous Materials Management: Contractor will provide the Contracting Officer (CO) the Safety Data Sheets (SDS) for chemical materials to be used during the project prior to the contract award in accordance with FAR Clause 52.223-3. The Contractor will provide SDSs’ to the Contracting Officer for review prior to the contractor bringing products on the installation. The contractor must inventory all chemical materials, including but not limited to:

solvents, paints, degreasers, greases, Ozone Depleting Substances, and oils, brought on base. A chemical material inventory must be maintained when used containing the nomenclature, manufacturer, part number, quantity, storage location, and the process in which the material is used. All chemical materials will be managed in accordance with federal, state, local, and Installation regulations.

1.8.6 Paint: All paints must meet Green Seal Certification and be low VOC.

See the table below for additional guidance. Paint containing lead will not be used during any painting process. An SDS will be submitted for all paint products used.

For this kind of product:

VOCs (in g/L) shall not exceed:

Flat Topcoat 50

Non-Flat Topcoat 100

Primer or Undercoat 100

Floor Paint 100

Anti Corrosive Coating 250

Reflective Wall Coating 50

Reflective Roof Coating 100

1.8.7 NOT USED.

1.8.8 Potable Water: If construction or modification of a potable water system is included as a part of the task order scope of work, the contractor is responsible to insure that all potable water connections are protected adequately with anti-siphon devices in accordance with the plumbing code. An ASSE approved anti-siphon device shall be attached to the hose bib prior to mixing chemicals, etc. A backflow prevention device must be installed at each location potable water enters a facility. This includes fire suppression.

1.8.9 Waste Water: Absolutely no chemical products will be allowed to be dumped in any drainage system, storm drain, wash rack, septic system or sanitary sewer. All remaining and residual chemicals will be taken away by the contractor.

1.8.10 NOT USED

1.8.11 Erosion Prevention and Sediment Control: Soil disturbance during this project, including equipment staging areas, will require erosion control measures. For projects that disturb more than an acre, a Notice of Intent (NOI) must be approved by the applicable State EPA, DOW or DEQ prior to any soil being disturbed as well as a storm water pollution prevention plan (SWPPP) reviewed and accepted by the government. For projects that disturb less than an acre of soil, an erosion control plan is required prior to soil disturbance.

1.9 NOT USED

1.10 NOT USED

1.11 NOT USED

1.12 NOT USED

1.13 NOT USED

2.0 NOT USED

3.0 GENERAL CONSTRUCTION REQUIREMENTS

3.1 SUMMARY

3.1.1 The requirements include:

a. Construction considerations and use of the premises.

b. Protection of personnel and Government property.

c. Construction facilities and job site standards.

d. The requirements of this section apply to the entire project including all amendments or modifications that may be issued to modify the contract documents.

3.2 GENERAL INFORMATION

3.2.1 Contractor shall have shared use of all spaces for execution of the construction work as defined in the requirements of this RFP; all areas are currently occupied. Entrance into and interface with the surrounding facilities shall be coordinated in advance with the Contracting Officer. The project site is within the fenced boundaries of a United States Department of Defense Military Installation. Access will require advance notice and security passes at all times. The contractor is responsible for obtaining all security passes.

3.2.2 The superintendent in charge of this work shall personally contact the Contracting Officer’s Representative a minimum of 72 hours before starting work on the contract, before restarting work after a lengthy delay, and prior to moving workers and equipment from one site of work to another.

3.2.3 Coordinate all construction activities with:

a. Contracting Officer’s Representative

b. Base Fire Department

c. Base Security/Police

d. Base Civil Engineer

e. Building Occupants

3.2.4 Prior to the start of any construction operations whatsoever, a schedule of work or operations in proper sequence shall be submitted by the contractor for approval by the Contracting Officer’s Representative so as to cause a minimum amount of disruption to the normal flow of traffic on streets, pedestrian travel, installation security, and facility operations.

3.2.5 Coordinate all Construction and Use of Premises Activities with the Contracting Officer’s Representative.

3.2.6 Coordinate with Contracting Officer’s Representative the scheduling and routing of work, personnel access and material deliveries for the work.

3.2.7 The Contractor shall coordinate with Installation security regulations and personnel regarding worker and vehicle identification, badging, and permits.

3.2.8 High-ranking officers, foreign dignitaries, or DOD employees may approach you. Only the Contracting Officer can make changes to the contract.

3.3 DOCUMENTATION

3.3.1 Construction Plan:

3.3.1.1 Prior to the start of any onsite construction activities, the Contractor shall submit a detailed construction plan. The plan shall include a detailed schedule of the major construction activities. Prior to the start of work, submit a site plan showing the locations and dimensions of temporary facilities (including layouts and details, equipment and material storage area (onsite and offsite), and access and haul routes, avenues of ingress/egress to the fenced area and details of the fence installation. Identify any areas which may have to be graveled to prevent the tracking of mud. Indicate if the use of a supplemental or other staging area is desired. Show locations of safety and construction fences, site trailers, construction entrances, trash dumpsters, temporary sanitary facilities, and worker parking areas.

3.3.1.2 Once the schedule is approved, do not deviate from the sequence, without prior written approval.

3.3.2 Waste Disposal:

3.3.2.1 Prior to the start of any onsite construction activities, the Contractor shall submit a written plan for disposing of waste materials resulting from work under this contract as described in this specification section.

3.4 CONSTRUCTION CONSIDERATIONS

3.4.1 Use of the Premises:

3.4.1.1 The Contractor’s use of the site, utility availability, and temporary facilities are described below.

3.4.1.2 WORK SCHEDULE: The Contractor shall schedule the work between the hours of 7:00 a.m. and 5:00 p.m. Monday through Friday except Federal Holidays.

a. Permission to perform any work outside of these hours, including weekends, must be in writing and submitted five (5) calendar days in advance for approval by the Contracting Officer.

b. The Government may or may not grant such permission at its discretion.

3.4.1.3 Work is anticipated to be performed during normal business hours. Work may be required to be performed on weekends if it is determined by the Contracting Officer that work will be disruptive to any installation operations.

The Government will occupy areas adjacent to the work site during construction.

Contractor shall schedule and perform the work so as not to interfere with the Government’s operations. The Contractor shall cooperate fully with the Government during construction operations to minimize conflicts and to facilitate Government usage.

3.4.1.4 The Contractor will not be permitted to use existing toilet and wash facilities. The contractor shall provide his own toilet and wash facilities if desired.

3.4.1.5 Water, gas, and electricity will be furnished to the Contractor by the Government from the Government’s existing system outlets. Utilities will be furnished at no cost to the Contractor, except for telephone. The contractor is responsible for all coordination and the payment of all temporary telephone costs (setup and monthly charges).

3.4.1.6 UTILITY OUTAGES:

a. Any utility outages (gas, steam, electricity, and water) requested by the Contractor shall be submitted in writing no less than fourteen

(14) calendar days prior to proposed outage.

b. The Government reserves the right to reschedule the Contractor’s proposed outage if deemed necessary.

c. In the event utility outages cannot be performed on any facility due to critical operation impact, the utility outages and any related work shall be performed on non-duty hours.

d. Contractor shall notify the installation Fire Department prior to emergency utilities shutdown of the facilities.

3.4.1.7 Contractor Personal Vehicle Parking: The contractor may use a limited number of parking spaces in the existing lots for the contractor’s employee parking of personal vehicles. The Contractor shall coordinate with the Government on the exact number of available spaces, and shall make provisions to transport employees to the site should inadequate parking spaces be available on site. Parking in these areas is available on a first-come first served basis.

3.4.2 Project Site:

3.4.2.1 Contractor shall maintain a neat and orderly workplace with clear paths of emergency egress within the construction area.

3.4.2.2 Protection and Maintenance of Traffic: Prior to commencement of demolition and construction, the Contractor shall coordinate daily access and egress from the area of construction with the Contracting Officer, both vehicle and pedestrian. The Contractor shall confine construction personnel and equipment travel and operations to the area of work. The Contractor shall request approval for the limits of construction from the Government. The contractor shall coordinate access ways for personnel and equipment with the contracting officer.

a. The Contractor shall maintain and protect traffic on all affected roads during the construction period except as otherwise specifically directed by the Contracting Officer. The Contractor shall prepare a traffic plan (vehicle and pedestrian) for the project area and submit it to the Contracting Officer for review and approval.

b. The Contractor shall maintain and protect pedestrian traffic inside and outside of project area. The Contractor shall not cause traffic interference on any interior corridors without approval from the Contracting Officer.

c. The traveling public shall be protected from damage to person and property.

3.4.2.3 Dust control. For interior work, the Contractor shall construct a dust partition wall around the interior perimeter of the space as necessary to prevent dust from travelling into the corridor space. For exterior work the contractor shall control all fugitive dust.

3.4.3 Storage of Materials:

3.4.3.1 The Contractor shall be responsible for the storage and safekeeping of all material to be incorporated into the work. The Contractor shall be responsible for all aspects of safety and security within the storage area.

3.4.3.2 Outside space is extremely limited on the installation for the storage of materials, the Contractor shall limit storage of materials to areas within project area. The Contractor shall indicate if the use of a supplemental or other staging area is desired.

a. Upon the Contractor’s request, the Contracting Officer will consider another or supplemental area for the Contractor’s use and storage of equipment, trailers, and materials; however, this will be solely at the discretion of the garrison and may not be approved. This area may not be in close proximity of the construction site but will be within the installation boundaries.

b. Fencing of materials or equipment will be required at storage locations; plastic strip inserts, colored green, must be used on the fence to screen the storage compound from the installation; fence posts must be embedded into grade as recommended by the manufacturer. The Contractor shall be responsible for cleanliness and orderliness of the area used and shall restore the area to its original condition upon completion of the project.

c. The Government will not provide utilities to the storage area.

3.4.3.3 Provide adequate storage facilitates for protection of materials and equipment. Materials and equipment shall be stored so as to ensure preservation of their quality of fitness for Work. Perishable items and items adversely affected by weather, rain, wind, dust, heat, or cold shall be stored within the designated area of construction, temporary waterproof sheds, or mobile facilities with raised floors, and heated if necessary. Other materials and equipment shall be stored on wooden platforms and not on the ground.

3.4.3.4 Storage facilities shall be clean, in good condition, undamaged and free of rust or surface deterioration. Rental trailers shall be of a neutral color. Unsightly material storage or office trailers will not be permitted.

3.4.3.5 The Contractor shall be responsible to maintain the condition of storage facilities, as defined above, and the entire construction site in a neat, orderly, professional and uncluttered manner at all times throughout the length of the contract.

3.4.4 Security:

3.4.4.1 Security requirements shall be observed at all times. The Contractor shall be responsible for maintaining satisfactory standards of employee competency, conduct, appearance, and integrity. Personnel working on or involved with security alarms, secure areas or security infrastructure shall be US Citizens.

3.4.4.2 Construction operations shall be strictly confined to the designated area of Work.

3.4.4.3 The Contractor shall be responsible for the security of his own equipment.

3.4.5 Protection of Personnel and Government Property:

3.4.5.1 Contractor shall comply with all applicable Federal, State, and Local safety codes, regulations, and requirements.

3.4.5.2 The Installation Safety Officer or his representative will attend preconstruction conferences to brief contractors on pertinent safety regulations and to provide guidance for safe operations during contract performance. Local safety guidance will be furnished to the Contractor for briefing his personnel.

3.4.5.3 The Contractor shall provide, no later than ten days after receiving Notice of Award, four (4) copies of their written safety program to the Contracting Officer for review. No construction shall commence until the Contractor’s Safety Program has been reviewed and accepted by the Contracting Officer.

3.4.5.4 It is the Contractor’s responsibility to maintain a secure construction site to prevent access to the work area by unauthorized personnel.

3.4.5.5 Safety posters, “hard hat area” posters, “authorized personnel only” posters, and any other notifications required by law shall be posted and maintained in sufficient quantity to be conspicuous on the job site.

3.4.5.6 The contractor shall protect all government property in adjacent areas from damages during the construction project; especially furniture and finishes.

In the event of damages of any nature caused by this work due to improper protection, precaution, or safety measures, such damages shall be repaired by the Contractor at no cost to the Government. In the event the Contractor does not satisfactorily repair or replace such damage caused by the work of this contract, the Government will make the necessary corrections and the Contractor shall reimburse the Government for inconveniences, labor, and materials, involved.

3.4.5.7 The Contractor shall erect and maintain temporary barricades to limit public access to hazardous areas.

a. Such barricades shall be required whenever safe public access is prevented by construction activities or as otherwise necessary to ensure safety of both pedestrian and vehicular traffic.

b. Barricades shall be securely placed, clearly visible with adequate illumination to provide sufficient visual warning of the hazard during both day and night.

3.4.6 Site Fire Protection:

3.4.6.1 Site fire protection shall conform to NFPA 241 and EM 385-1-1.

3.4.6.2 Fire extinguisher equipment shall be provided in storage areas according to the hazard present.

3.4.6.3 Fire extinguishers listed or approved by a nationally recognized testing laboratory shall be used.

3.4.6.4 Provide temporary fire protection equipment for the protection of personnel and property during construction. Remove debris and flammable materials daily to minimize potential hazards.

3.4.7 Waste Disposal:

3.4.7.1 The Contractor is required to maintain a clean project site free of accumulating debris. Demolition debris and other construction waste shall be promptly disposed of at the end of each workday in proper waste containers maintained on the project site by the Contractor.

3.4.7.2 Environmentally hazardous or other construction debris with special disposal requirements shall be stored on the site and disposed of offsite in a proper lawful manner.

3.4.7.3 All debris shall be removed from the site on a regular basis. Waste shall not be allowed to accumulate.

3.4.7.4 Construction waste and debris maintained on-site prior to off-site disposal shall be controlled in a manner to eliminate any potential health or safety hazards.

3.4.7.5 Burning of waste or any other material on-site is strictly prohibited.

3.4.7.6 The project job site shall be “broom cleaned” at the end of each work day. The Contractor shall remove debris from the job site as it is generated and dispose of it in proper containers as outlined herein.

3.4.7.7 The Contractor shall coordinate dumpster location with the contracting officer.

3.5 CONTRACTOR DAMAGED FINISHES

Damage to any existing finishes or equipment, such as floors, ceilings, HVAC equipment, doors, paint, by the contractor shall be repaired or replaced by the contractor at the contractor’s expense to the satisfaction of the government.

4.0 NOT USED

5.0 NOT USED

6.0 NOT USED

7.0 ARCHITECTURAL

Upon completion of this project, the areas used by the contractor shall be returned to their condition prior to beginning the work. Items damaged by the contractor will be repaired, trash removed and areas cleaned.

8.0 NOT USED

9.0 NOT USED

10.0 MECHANICAL AND ELECTRICAL

The contractor shall perform the following work to replace Chiller #1 at

DFAS Building 21, DSCC, Columbus, OH. The existing chiller is a Centrifugal Chiller with the following details:

Manufacturer: Trane Model CVHF770 Model Number: CVHF077NAW0O3UT2797A1B8T1A0000000JABF00000100 Serial number: L97H05516

a. The chiller replacement shall include the following features:

i. Unit 620 Nominal Tons R514 Refrigerant Centrifugal Liquid Chiller with 2 Stage Compressor Controls Compressor Motor Voltage: 4160 Volt 3 Phase Standard Cooling

ii. Evaporator Evaporator Bundle Size: 1400 Nominal Tons Evaporator Tubes: 0.75 Inch Dia. Internally Enhanced Copper Evaporator Tube Wall: 0.028 Inch Thick Evaporator Fluid Type: Water Evaporator Waterbox Type: Marine

iii. Condenser Condenser Bundle Size: 800 Nominal Tons Condenser Tube: 1.00 Inch Internally Enhanced Copper Condenser Tube Wall: 0.028 Inch Thick Condenser Fluid Type: Water Condenser Waterbox Type: Marine

b. All demolition required to construct the project is included as part of the work of this Contract. The refrigerant from the existing chiller shall be recovered by the contractor, and shall be disposed of according to current law. The contractor shall take possession of the existing chiller, and is responsible for its disposal.

c. Additional accessories and features provided with the chiller include the following:

Thermal Dispersion Flow Switch (lfm) – Field Installed Orifice Size: 935 Nominal Tons Insulation Package Compressor Doweling BACnet With Rupture Guard-Relief Valve-Field Install Remote Mounted Across The Line Starter Starter Power Connection: Isolation Switch Starter Option: Under/Over Phase Voltage Startup Included

d. The new chiller shall be compatible with the existing chilled water system control system, so that it may be controlled in the same manner as the existing chiller. The new chiller shall be integrated into the chilled water system, to include that hardware and software configurations for the new chiller shall be similar to that of the existing chiller. Should it not be possible to make these configurations, the contractor shall request a variance for review.

The new chiller shall be required to operate according to the existing sequence of operation. The sequence may be obtained from the chiller plant operators, through the Contracting Officer’s Representative (COR). The following control and monitor points shall be supplied from the chiller to the chilled water control system:

Control functions:

Smart compressor startup and shutdown sequence Oil pump control Inlet guide vane actuator Loss of flow in condenser or evaporator High condenser pressure limit High pressure cutout Evaporator fluid temperature cutout Evaporator refrigerant temperature limit Evaporator leaving fluid temperature control Current limit control/Demand limit input Condenser limit control Automatic chilled water set point reset Constant entering fluid temperature control Ability to control chilled water set point with varying water flow Chiller startup automatic soft-loading Smart chiller auto-restart Remote BAS set point control Remote BAS enable/disable Pump start/stop output relays Cooling water Chilled Water Oil heater set point control

Monitoring Functions:

Temperature - Standard Evaporator approach temperature Evaporator entering water temperature Evaporator leaving water temperature Condenser approach temperature Condenser entering water temperature Condenser leaving water temperature Oil tank temperature Saturated evaporator refrigerant temperature Saturated condenser refrigerant temperature

Pressure - Standard Evaporator refrigerant pressure (derived) psia Condenser refrigerant pressure (derived) psia Oil tank pressure psia Oil pump discharge pressure psia Differential oil pressure (derived) psid

Control inputs - Standard Setpoint source: front panel Chilled water reset based on return water temperature External chiller Auto-Stop External chiller emergency Stop

Chiller associated - Standard Compressor motor starts Compressor motor running hours Current, phase current Voltage, L1, L2, L3 Compressor motor kW Power factor Compressor motor % RLA by phase

e. The pressure and temperature gages, on the piping near the existing chiller, shall be replaced after the installation of the new chiller.

All new piping, and any existing piping whose insulation is removed for the installation of the new chiller, shall be insulated to match the existing insulation. The new chiller shall be insulated.

f. The new chiller shall condition the same flow of chilled water as the existing chiller, and use the same flow from the cooling tower for the condenser, using the existing pumping system. There shall be no significant change in pressure drops through the new chiller, compared to the existing chiller.

g. Once the new chiller is installed, startup shall include the following procedures, performed by the contractor:

1. Leak test chiller with nitrogen

2. Evacuate

3. Charge with refrigerant and oil. Contractor shall ensure that the chiller refrigerant charge is complete by weighing the new refrigerant containers before and after charging.

4. Fill condenser and chilled water systems

5. Perform factory startup – contractor shall have manufacturer’s technician perform startup in accordance with manufacturer’s standard procedures.

h. Once the installation is complete, the contractor shall start the chiller in accordance with the start-up instructions supplied by the manufacturer. The contractor shall then run a Functional Performance Test (FPT) on the chiller, wherein the chiller will be run through its entire sequence of operation. Should the chiller not operate in accordance with the sequence, the contractor shall correct any errors and continue the test. After the FPT has been completed, the contractor shall demonstrate to the government that the chiller is operational by running the chiller through its sequence of operations. The Contracting Officer’s Representative (COR) shall attest that the chiller operates as required.

AMEND 0002**********************************************************

i. Replace the two valves on chilled water side of chiller. Existing valves shall be replaced with similar valves. Existing valves are 8-inch ¼ turn butterfly valves. See existing chilled water valves on Attachment 1.

j. Replace the two valves on condenser water side of chiller. Existing valves shall be replaced with similar valves. Existing valves are 10-inch ¼ turn butterfly valves. See existing chilled water valves on Attachment 1.

k. Replace the pneumatic three-way valve on condenser water side of chiller with an electronic actuated valve. Connect control to existing Building automated System (BAS). See valve type on Attachment 1.

**************************************************************AMEND 0002

11.0 NOT USED

12.0 NOT USED

13.0 NOT USED

14.0 NOT USED

Veterans Employment Emphasis for U.S. Army Corps of Engineers Contracts In addition to complying with the requirements outlined in FAR Part 22.13, FAR Provision 52.222-38, FAR Clause 52.222-35, FAR Clause 52.222-37, DFARS

222.13 and Department of Labor regulations, U.S. Army Corps of Engineers (USACE) contractors and subcontractors at all tiers are encouraged to promote the training and employment of U.S. veterans while performing under a USACE contract.

While no set-aside, evaluation preference, or incentive applies to the solicitation or performance under the resultant contract, USACE contractors are encouraged to seek out highly qualified veterans to perform services under this contract. The following resources are available to assist USACE contractors in their outreach efforts:

- U.S. Department of Labor Veterans’ Employment and Training Service (VETS):

https://www.dol.gov/vets/

- Federal Veteran Employment Information: https://www.fedshirevets.gov/

- Veterans Opportunity to Work (VOW) Program: https://www.benefits.va.gov/vow/

- U.S. Army Warrior Transition Command Employment Index:

https://wct.army.mil/modules/employers/index.html

- Hiring Our Heroes: https://www.uschamberfoundation.org/hiring-our-heroes (End of special contract requirement)

--End of Section --

Attachment 1

Chilled water side of chiller

Existing Valve tag on chilled water side of chiller

Condenser water side of chiller

Valve tag on condenser side of chiller

Three way Valve on condenser side of chiller

Three-way valve

Sample three-way Valve dimension that are highlighted are the size that fits the existing valve