36C24222B0076 0003.docx

5. PROJECT NUMBER (if applicable)

CODE

7.

ADMINISTERED BY

2. AMENDMENT/MODIFICATION NUMBER

CODE

6. ISSUED BY

8. NAME AND ADDRESS OF CONTRACTOR

4. REQUISITION/PURCHASE REQ. NUMBER

3. EFFECTIVE DATE

9A. AMENDMENT OF SOLICITATION NUMBER

9B. DATED

PAGE OF

PAGES

10A. MODIFICATION OF CONTRACT/ORDER NUMBER

10B. DATED

BPA NO.

1. CONTRACT ID CODE

FACILITY CODE

CODE

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:

The above numbered solicitation is amended as set forth in Item 14. The hour and date specified for receipt of Offers

E. IMPORTANT:

is extended,

(a) By completing Items 8 and 15, and returning __________ copies of the amendment; (b) By acknowledging receipt of this amendment on each copy of the offer submitted; or (c) By separate letter or electronic communication 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 is not extended.

12. ACCOUNTING AND APPROPRIATION DATA

(REV. 11/2016)

is required to sign this document and return ___________ copies to the issuing office.

is not, 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.

15C. DATE SIGNED

B. THE ABOVE NUMBERE

D CONTRACT/ORDER IS MODIFIED TO REFLECT THE ADMINISTRATIVE CHANGES

SET FORTH IN ITEM 14, PURSUANT TO THE AUTHORITY OF FAR 43.103(b).

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 letter or electronic communication, provided each letter or electronic communication makes reference to the solicitation and this amendmen t, and is received prior to the opening hour and date specified.

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

D. OTHER

Contractor

16C. DATE SIGNED

14. DESCRIPTION OF AMENDMENT/MODIFICATION

16B. UNITED

STATES OF AMERICA

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

16A. NAME AND TITLE OF

CONTRACTING OFFICER

15B. CONTRACTOR/OFFEROR

STANDARD FORM 30

PREVIOUS EDITION NOT USABLE

Prescribed by GSA - FAR (48 CFR) 53.243 (Type or print) (Type or print) (Organized by UCF section headings, including solicitation/contract subject matter where feasible.)

(Number, street, county, State and ZIP Code) (If other than Item 6) (Specify type of modification and authority) (such as changes in paying office, appropriation date, etc.)

(If required)

(SEE ITEM 11)

(SEE ITEM 13)

(X)

CHECK

ONE

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

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

11. THIS ITEM ONLY APPLIES TO AMENDMENTS OF

SOLICITATIONS

AMENDMENT OF SOLICITATION/MODIFICATION OF CONTRACT

(Signature of person authorized to sign) (Signature of Contracting Officer) 528A7-23-102 Department of Veterans Affairs Network Contracting Office 02 800 Irving Ave Syracuse NY 13210 Department of Veterans Affairs Network Contracting Office 02 800 Irving Ave Syracuse NY 13210 To all Offerors/Bidders

36C24222B0076

X X X

X Purpose of this amendment is to incorporate Questions and Answers A.) Incorporate Q & As from RFIS dated 11 Oct 2022 B.) All other terms and conditions remain unchanged

Updated on October 11th, 2022

Addendum to solicitation 36C24222B0076, Add Chiller Rome VA CBOC, 528A7-23-102

1. Question: Please provide dimensions for new chiller, WC-1. Will the new chiller fit through the double doors to the mechanical room, or will it need to be disassembled?

Answer: The “Government Furnished/Contractor Installed” chiller will be shipped from the vendor in three major assemblies, on or about March 1st, 2023. The unit (chiller) is factory assembled, refrigerant piped, wired and leak tested, then dismantled for shipment. The compressor/motor assembly is removed from the shells and skidded. The evaporator and condenser shells are separated at the tub sheets and are not skidded. Refrigerant lines between the cells are closed and charged with dry nitrogen between 2 and 3 psig. The chiller’s Variable Speed Drive will be packaged and shipped on a separate skid. Refrigerant, isolators, temperature controls, and wiring are shipped separately. The control center ships on the evaporator in the folded down position. The construction contractor will be responsible for rigging the three major chiller assemblies (evaporator, condenser, and variable speed drive, as described above), wiring, isolators, miscellaneous parts, and refrigerant bottles into the mechanical room door opening which is approximately 83” high and 70-1/2” wide. Refer to attached drawings “Assembled Chiller Dimensions” and “Split Shipped Chiller Dimensions” as well as the attached “York 265 Ton YZ Chiller Selection” information. The contractor shall then assemble the chiller assemblies, refrigerant lines, controls, and electrical wiring harnesses to factory specifications and charge the chiller with the R-1233zd(E) refrigerant.

2. Question: Is the new conduit to be EMT or GRS (galvanized rigid steel)?

Answer: The space in the mechanical room does not meet the definition of Hazardous (paragraph 3.6 of specification 260533) or Wet/Damp Locations (paragraph 3.7 of specification 260533), thus EMT is acceptable in the mechanical room, per paragraph 3.4 of specification 260533. Metallic electrical and control conduit sections penetrating the masonry wall to the exterior should be GRS and comply with paragraph 3.1 of specification 260533.

3. Question: Are we to use set screw or compression fittings for electrical conduit?

Answer: Refer to paragraph 2.1 of specification 260533.

4. Question: Do we re-use / modify the existing feeders (conduit & wire) for the relocated existing chiller WC-2 and re-use the existing circuit breaker?

Answer: To clarify Power Plan Keyed Notes 2 and 3 on EP-101, contractor may utilize existing conduit and electrical conductors to the extend desired. The conductors shall be tested per paragraph 3.9, Acceptance Checks and Tests, of specification 26 05 19 prior to reworking the conduit and conductors, and again after the rework. Re-use the existing circuit breaker for existing WC-2 per keyed note 2 on drawing EP-101.

5. Question: Who supplies any new Variable Frequency Drives (VFDs)?

Answer: The contractor supplies all materials except that shown on the drawings as Government Furnished or materials to be re-worked.

6. Question: What is the percentage of work that needs to be done by the Prime (SDVOSB)?

Answer: 25%

7. Question: Will the contract end date be extended to account for long lead times for some materials?

Answer: The contract end date shall be extended to April 30th, 2023 to accommodate the installation of the new chiller that is expected to arrive on site around March 1st, 2023 and for the long lead time of the contractor supplied Variable Frequency Drives. Existing chiller, WC-2, is still required to be operational as no later than March 31, 2023, or 90 days from contract award, whichever is later. The existing chiller will operate without the new Variable Frequency Drives (see note 4 on EP-101) on the condenser water pumps, thus the receipt of the Variable Frequency Drives should not delay the requirement for WC-2’s operation.

8. Question: Will the on-site assembly of the chiller require third party oversight, and if so, who will contract for this service?

Answer: The chiller’s major components (evaporator barrel, condenser barrel, motor, VFD, refrigerant, and wiring harnesses) will require assembling by the contractor with oversight from York/Johnson Controls. The contractor shall procure the services of a factory trained and authorized representative of York/Johnson Controls who has the experience necessary to provide oversight and assistance with the assembling of the “Government Furnished/Contractor Installed” York YZ chiller to maintain the factory warranties.

9. Question: Marine Water Boxes typically require insulation to be applied in the field. Do these Marine Water Boxes require the insulation to be field installed and who is to provide the insulation?

Answer: The Marine Water Boxes on the ends of the evaporator barrel require field applied 40 mm (1.5 inch) minimum thickness of flexible-elastomeric thermal insulation, complying with ASTM C534. The contractor shall provide and install the insulation. The insulation shall be installed so that it is partially removable and allow access and opening of the water boxes without damage to the insulation.

10. Question: Specification section 26 05 19, page 6, “Existing Conductors” states not to reuse existing conductors. However, Note 2 on drawing EP-101 indicates to rework existing circuit referencing the relocated Chiller WC-2. The same would be for Note 3 and Note 5 on the same drawing EP-101 as it relates to the CHW Pumps 1 and 2 as well as the New Refrigerant Monitor.

Answer: Specifically for the power to WC-2, CHW Pumps 1 & 2, and the Refrigerant Monitor, only, the contractor may reuse and rework the existing conductors. The conductors for chiller WC-2 and CHW Pumps 1 and 2 shall be tested per paragraph 3.9, Acceptance Checks and Tests, of specification 26 05 19 prior to reworking the conduit and conductors, and again after the rework.

See attached document: york chilller selection.

See attached document: split shipped chiller dimensions.

York 265 Ton YZ Chiller Selection.pdf

Unit

Number of Compressors 1

Compressor Type Centrifugal

Number of Compressor Circuits 1

Refrigerant R-1233zd(E)

Compressor AN030NA

Motor MA033AA

Variable Orifice 3

Cooling Performance

Specified Net Capacity [ton.R] 265.0

Rated Net Capacity [ton.R] 265.0

Heat Rejection Capacity [MBtu/h] 3.680

Full Load Efficiency [kW/Ton.R] 0.5373

Part Load Efficiency (NPLV.IP) [kW/Ton.R] 0.3274

Part Load Efficiency (IPLV.IP) [kW/Ton.R] 0.3254

A-Weighted Sound Pressure Level [dBA] 73

Electrical Data

Power Supply [V/ph/Hz] 460/3/60.0

Total Input Power [kW] 142.4

Min. Circuit Ampacity [amps] 251

Max. Circuit Breaker Amps (each system) [amps] 450

Full Load Amps (FLA, each system) [amps] 201

Weight & Dimensional Data

Shipping Weight [lb] 16940

Operating Weight [lb] 19091

Refrigerant Charge [lb] 771

Length [in] 173.4

Width [in] 78.4

Height [in] 94.2

Image shown for illustrative purposes only. Selected product may vary.

Performance Impacting Options

Starter Type VSD w/o Filter

Starter Model P033NA

Isolation Valves Yes

OptiSound Control Yes

Evaporator Tubes

STD 641, 0.75" OD, Copper, 0.025" thick, Enhanced

Condenser Tubes

STD 491, 0.75" OD, Copper, 0.025" thick, Enhanced

Condenser Subcooler Tubes

STD 491, 0.75" OD, Copper, 0.025" thick, Enhanced

Heat Exchanger Performance

Evaporator Condenser

Evaporator FB2912-A3D-641-2* Condenser SA2512-A3O-491-2*

Entering Fluid Temperature [°F] * 60.00 Entering Fluid Temperature [°F] * 85.00

Leaving Fluid Temperature [°F] * 44.00 Leaving Fluid Temperature [°F] 94.29

Flow Rate [gpm] 396.5 Flow Rate [gpm] * 796.5

Fouling Factor [hr-ft²-°F/Btu] * 0.000100 Fouling Factor [hr-ft²-°F/Btu] * 0.000250

Fluid Type * Water Fluid Type * Water

Passes * 2 Passes * 2

Pressure Drop [ft H2O] 9.69 Pressure Drop [ft H2O] 11.1

Fluid Volume [gal] 109 Fluid Volume [gal] 124

Minimum Flow Rate [gpm] 259.8 Minimum Flow Rate [gpm] 499.2

Maximum Flow Rate [gpm] 1039 Maximum Flow Rate [gpm] 1815

Heat Exchanger Type Falling Film Heat Exchanger Type Flooded

* Designates user specified input

YZ Water-Cooled Centrifugal Chiller Performance Specification

Project Name: VA Rome Chiller Tag: CH-1 Qty: 1 Model: YZ-MA033AN030P033NA

Version: 05/24/2022 at 13:45 Version: 21.05 (LTC Version:1.0.8154) Project Name: VA Rome Chiller

Unit Name: CH265 YORKworks 21.05 Page 1 of 3

Certified in accordance with the AHRI Water-Cooled Water Chilling and Heat Pump Water-Heating Packages Certification Program, which is based on AHRI Standard 550/590 (I-P) and AHRI Standard 551/591 (SI). Certified units may be found in the AHRI Directory at www.ahridirectory.org.

Part Load Performance (Full Load with IPLV/NPLV per Std. Condition Set)

Percent Load Net Capacity [ton.R] Percent Power Input Power

[kW] Evap EFT [°F] Evap LFT [°F] Cond EFT [°F] Cond LFT [°F] Efficiency [kW/Ton.R]

100 265.0 100 142.4 60.00 44.00 85.00 94.29 0.5373

75 198.8 56 79.34 55.99 44.00 75.00 81.72 0.3992

50 132.5 26 37.18 51.99 44.00 65.00 69.34 0.2806

25 66.25 15 20.94 47.99 44.00 65.00 67.20 0.3161

Part Load Performance(Minimum CEFT)

CEFT [°F]

Percent Load

100 90 80 70 60 50 40 30 20 10

85.00 0.5373 0.5203 0.5155 0.5220 0.5334 0.5575 0.5847 0.6467 0.7736 1.378

80.00 0.4706 0.4554 0.4525 0.4571 0.4700 0.4845 0.5090 0.5559 0.6738 1.005

75.00 0.4192 0.4085 0.4032 0.3975 0.3996 0.4052 0.4215 0.4584 0.5560 0.8392

70.00 0.3725 0.3592 0.3458 0.3363 0.3342 0.3368 0.3463 0.3708 0.4513 0.6777

65.00 0.3236 0.3068 0.2927 0.2836 0.2801 0.2806 0.2838 0.2981 0.3487 0.5850

60.00 0.2807 0.2611 0.2469 0.2353 0.2291 0.2249 0.2260 0.2347 0.2575 0.4381

55.00 0.2411 0.2204 0.2052 0.1933 0.1845 0.1805 0.1781 0.1790 0.1967 0.2692

50.00 0.2011 0.1832 0.1666 0.1541 0.1434 0.1357 0.1282 0.1268 0.1377 0.1958

45.00 0.1728 0.1580 0.1442 0.1280 0.1111 0.09395 0.08809 0.1018 0.1240 0.1988

44.00 0.1709 0.1564 0.1424 0.1247 0.1067 0.09116 0.09318 0.1081 0.1326 0.2175

43.00 0.1657 0.1515 0.1365 0.1169 0.09897 0.09367 0.09436 0.1089 0.1335 0.2187

42.00 0.1602 0.1457 0.1305 0.1090 0.1016 0.09628 0.09567 0.1098 0.1344 0.2203

41.00 0.1543 0.1391 0.1228 0.1107 0.1043 0.09901 0.09739 0.1108 0.1359 0.2219

40.00 0.1475 0.1314 0.1222 0.1143 0.1071 0.1019 0.09977 0.1118 0.1374 0.2236

* Values are in kW/Ton.R

Rated point is 80% or higher efficiency compared to design operation point.

Rated point is 70% or higher efficiency compared to design operation point.

Rated point is 60% or higher efficiency compared to design operation point.

Sound Pressure Levels (Standard)

Percent Load Octave Band Center Frequency [Hz] A-Weighted

(dBA)63 125 250 500 1000 2000 4000 8000

100 61.5 61.5 67.0 66.5 65.5 67.0 66.0 60.0 73

75 62.5 61.0 63.0 62.0 62.5 63.0 62.5 61.5 70

50 63.5 64.0 58.0 57.5 59.0 59.0 62.5 63.0 68

25 63.5 69.0 59.5 57.5 58.0 58.5 63.5 64.0 69

The octave and A-weighted sound pressure levels are the levels expected to be obtained if measurements are performed in accordance with AHRI Standard 575-08, Method of Measuring Machinery Sound Within Equipment Rooms. Tolerances: The sound levels of identical unit selections can vary due to manufacturing tolerances and test repeatability. Variations of ±3 dBA on the A-weighted levels and ±5 dB on the octave band levels are possible.

Unit Configuration Details

YZ_MA033AN030P033NA_FB2912A3D6412MA1FLLBNSA2512A3O4912MA1FLLBXAAXNA_AAXACN66X114NNNNNXASTU0101YNNXX01SSN1OYTXNS ADYNENIYSXUSGNN02650.50.3CW00W00XNNLLAEANNNNNXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX000

Unit Name: CH265 YORKworks 21.05 Page 2 of 3

Evaporator Condenser

FB2912-A3D-641-2* SA2512-A3O-491-2*

Design Working Pressure [psig] 150 150

Entering Water Nozzle Location L L

Leaving Water Nozzle Location L L

Water Box Weight [lb] 544 N/A

Cover Plate Weight [lb] 409 287

Return Head Weight [lb] N/A N/A

Water Weight [lb] 905 1030

Fluid Volume [gal] 109 124

Weight Breakdown Details

Operating Weight [lb] 19091 Refrigerant (R-1233zd(E)) Weight [lb] 770 Motor Weight [lb] 1956

Per Isolator [lb] 4773 Compressor Weight [lb] 1949 Shipping Weight [lb] 16940

Notes:

1. Certified in accordance with the AHRI Water-Cooled Water Chilling and Heat Pump Water-Heating Packages Certification Program, which is based on AHRI Standard 550/590 (I-P) and AHRI Standard 551/591 (SI). Certified units may be found in the AHRI Directory at www.ahridirectory.org.

2. Compliant with ASHRAE 90.1-2004, ASHRAE 90.1-2007, ASHRAE 90.1-2010, ASHRAE 90.1-2013, ASHRAE 90.1-2013(2015) and ASHRAE 90.1- 2016.

3. Compliant with the requirements of the LEED Energy and Atmosphere Enhanced Refrigerant Management Credit (EAc4).

4. Materials and construction per mechanical specifications - Form 161.01-EG1.

5. Auxiliary components included in total kW - Chiller controls. FFBPN

6. IECC 2012 and IECC 2015/2018 Compliant

7. The product image shown is for illustrative purposes only and is not representative of selected options.

Unit Name: CH265 YORKworks 21.05 Page 3 of 3 image1.emf

Split Shipped Chiller Dimensions.pdf image2.emf