ATTACHMENT G REVISED PWS A0002.docx

ATTACHMENT G.

?.## REVISED PERFORMANCE WORK STATEMENT A0002

Epoxy Coating of Chillers Condensers

1. INTRODUCTION: The Orlando VA Healthcare System has a bona-fide need for a contractor to provide epoxy coating services for three (3) Central Energy Plant Chiller Condensers. The contractor shall be responsible for providing the epoxy coating of chillers condensers to ensure long-term corrosion resistance, durability, and aesthetic improvement. All material and supervision to perform each tasks shall be provided by the contractor.

2. OBJECTIVE: The overall objective is to protect the chillers from corrosion, chemical exposure and water to enhance the lifespan and functionality of the chillers. prevent further deterioration of the chillers and extend the life of the equipment.

3. PERIOD OF PERFORMANCE: The anticipated period of performance is June 16, 2025, through July 15, 2025.

4. PLACE OF PERFORMANCE: Viera VA Health Care Center, 2900 Veterans Way, Viera FL 32940.

5. HOURS OF OPERATION: Normal workdays are Monday through Friday, 7:00am to 4:30pm except government observed holidays. The contractor shall provide services only on normal workdays. Any work to be performed outside of the normal workdays shall be coordinated with the government project managers.

6. OBSERVED FEDERAL HOLIDAYS: The contractor shall not perform services on federal holidays, or when the government facility closes due to local or national emergencies, administrative closings, or similar government directed facility closings. Government shutdowns occur when the government refuses passage of key bills, resulting in the cession of some or all operations by the government. If Veterans Affairs (VA) is affected by a government shutdown during the period of performance, the contractor shall not provide services or submit claims against the government during and after the shutdown. The following federal holidays are observed by the government.

a. Table 1.

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7. PROJECT MANAGERS: The government project managers are (to be provided upon award).

8. SCOPE OF WORK:

a. Non-destructive testing has not been previously performed on the condenser units. As, such, baseline data is not available, and the contractor shall take this into consideration when planning the inspection and testing scope. It’s the contractor responsibility to perform NDT to evaluate the structural integrity of the condenser end sheets and water boxes prior to epoxy coating.

b. The contractor shall isolate and drain 3 each, 450 Ton chillers.

c. The contractor shall remove condenser heads, open heads, end sheets and water box surfaces on both sides of the condenser.

d. The contractor shall protect condenser tubes to prevent sandblasting of end sheet corrosion.

e. The contractor shall inspect and remove plugs after sandblasting to ensure no corrosion remains on the end sheets.

f. The contractor shall apply suitable epoxy coating system, such as Belzona epoxy or “equal to” item.

g. The contractor shall apply a topcoat compatible with the epoxy layer to provide additional protection and aesthetic appeal.

h. The contractor shall ensure a uniform coverage is applied, especially at tube-to-tube sheet interfaces, to mitigate galvanic corrosion.

i. The contractor shall mechanically polish tube entries to ensure proper water flow.

j. The contractor shall pressure tests the condenser to ensure no leaks.

k. The contractor shall fill and vent chiller.

l. The contractor shall inform the program managers when the chillers are ready for operation.

9. TRANE RECOMMENDED TEST REQUIREMENTS. The contractor shall be responsible for coordinating directly with the chiller manufacturer (TRANE) to obtain all necessary technical documentation and recommendations. This includes identifying and providing the recommended tests, procedures, and frequency for each specific chiller unit. The contractor shall ensure all testing aligns with the manufacturer’s latest guidelines and industry best practices and not entirely from paragraphs 9. a. through 9. f.

a. Pressure Test (Leak Test)

i. Pressurize the condenser with dry nitrogen or a nitrogen/helium mix.

ii. Typical test pressure: 150–300 psig (check specific Trane factory specs for exact number).

iii. Hold pressure for a set period (often 24 hours) without significant loss.

iv. If pressure drops, locate leaks with a soap solution or an electronic leak detector.

b. Vacuum Test

i. Evacuate the system to a deep vacuum (around 500 microns or lower).

ii. Isolate and monitor vacuum stability for a few hours.

iii. No significant rise should be observed (indicating no leaks or moisture).

c. Hydrostatic Test (in some rebuilds or inspections)

i. Water pressure testing at 1.5 times the condenser design pressure.

ii. Pressure held for a specified period, usually 30 minutes.

iii. No leakage or pressure drop should occur.

d. Eddy Current Testing (if applicable)

i. Insert an eddy current probe into each tube.

ii. Identify defects without damaging the tubes.

iii. Common during major maintenance or before recommissioning.

e. Visual Inspection

i. Open inspection ports or heads.

ii. Examine tubes, water boxes, gaskets, and headers.

f. Flow Test

i. Measure water flow rate and compare against design flow (typically in GPM).

ii. Pressure drop across the condenser is also measured.

10. EQUIPMENT SPECIFICATION

a. Table 2.

11. GOVERNMENT RESPONSIBILITY:

a. The government will be responsible for shutting down and releasing the chillers from the control of the Building Automated System. The chillers will be shut down one at a time for application of epoxy coating.

b. The government will designate an area for the contractor’s equipment storage.

12. CONTRACTOR’S RESPONSIBILITY:

a. The contractor is responsible for the LOCKOUT/TAGOUT (LOTO) of mechanical isolation of the chillers including disconnection of all piping systems, furnishing and installation of all mechanical isolation components (blind flanges, temporary valves, bypass piping).

b. The contractor shall develop and provide to the government project managers upon request, a safety plan which includes the risks specific to the application of the epoxy coating and the process of preventing quality failure and defects prior to occurring.

c. The contractor shall implement safety protocols to protect workers and the environment.

d. The contractor shall properly dispose of epoxy waste in accordance with local, state, and federal regulations to ensure proper management and prevention of environmental contamination.

13. SAFETY REQUIREMENTS:

a. The contractor shall be responsible for safeguarding government property while applying epoxy coating. At the end of each workday contractor’s equipment and materials shall be secured.

b. The contractor shall always ensure safety protection protocols are in place prior to the start of each word day for unexpected falls and trip hazards.

c. The contractor shall immediately correct any fire and safety deficiencies caused by contractor personnel. If the contractor fails or refuses to correct deficiencies promptly, the Contracting Officer may issue an order stopping all or any part of the work and hold the contractor in default of the contract.

d. The contractor shall display appropriate warning signs in all areas where application of epoxy coating may cause traffic obstruction or personnel hazard. Posted signs shall be clearly designated using safety tape, barriers or fencing so that it will not be necessary for staff or patients to cross path of the contractor’s working areas.

e. The contractor shall have the Safety Data Sheet (SDS) readily available for review upon request from the program managers.

f. Contractor personnel performing work shall be in the proper Personal Protective Equipment recommended by the manufacturer’s SDS.

14. INSPECTION AND ACCEPTANCE: The government has the right to inspect the service of the contractor during the epoxy application process in a manner that will not unduly delay the work. The government will not accept or render payment for work that doesn’t meet contract requirements.

15. PERFORMANCE REQUIREMENTS SUMMARY (PRS) MATRIX

1. The PRS is a performance indicator that is used to measure the acceptable quality of performance that must be met, who is going to check the measurements, and how these measures will define the success of the scope herein. The below performance standards will be measured accordingly.

1. Table 2.

95% Inspection and compliance.

100% Inspection and compliance.

100% Inspection and compliance.