Exhibit 2. SOW (377865), Chiller PM Services.pdf

SOW TEMPLATE 01.06.2025

SOW DATE: 2/3/2026

PROJECT TITLE: CUB Chiller Preventative and Corrective Maintenance Services FERMIFOWARD SUBCONTRACT SPECIALIST: Seth Mercil, smercil@fnal.gov FERMIFORWARD TECHNICAL POINT OF CONTACT: Pollock, J.P., jpollock@fnal.gov COUNTY THAT WORK WILL BE COMPLETED IN: DuPage☒

INTRODUCTION

In order to maintain the efficiency and effectiveness of the HVAC systems in the Central Utility Building (CUB), FermiLab has five (5) water cooled Trane CenTraVac chillers and associated refrigerant monitors that require periodic preventative maintenance and corrective maintenance, as needed. The purpose of this statement of work is to define the services, responsibilities, and deliverables for performing preventative and corrective maintenance on the Trane branded water-cooled CenTraVac chillers and refrigerant monitors currently installed.

The subcontractor shall provide all labor, materials, equipment, and supervision necessary to perform the work indicated in the scope of work below:

OBJECTIVE

1. Improve chiller functionality and overall efficiency.

2. Ensure compliance with all state, local, and federal regulations.

3. Ensure efficient operation of installed HVAC equipment.

SCOPE OF WORK

The Subcontractor shall perform the tasks listed below at the indicated periodicity:

1. Chiller Preventative Maintenance Tasks

a. Quarterly

i. Check general operation of the unit (i.e. record inlet and discharge pressures, oil pressure, and bearing temperatures).

ii. Verify proper operation of the Tracer™ control system and update logs.

iii. Check refrigerant charge level and inspect for leaks using EPA-approved methods.

iv. Inspect purge unit operation and record number of cycles.

v. Test and calibrate all temperature and pressure sensors.

vi. Check oil level. Add oil, if required.

vii. Inspect oil heater and verify operation during standby.

viii. Inspect and tighten electrical terminations, contactors, and control wiring.

ix. Inspect and test safety interlocks and control safeties, including high-pressure, low-pressure, and oil differential switches.

x. Verify vane actuator operation and ensure proper capacity control.

xi. Inspect coupling alignment and vibration levels.

xii. Check condenser water flow and temperature differential; verify proper approach.

xiii. Review system performance and energy consumption data.

xiv. Additional maintenance indicated by equipment manuals.

xv. Provide a written report of completed work, detailed inspection log, and indicate any deficiencies detected.

Statement of Work 01.06.2025 Infrastructure Services Division

b. Every Six Months

i. Lubricate the vane control linkage bearings, ball joints, and pivot points.

ii. Lubricate vane operator tang O-rings

iii. Operate the tang operators manually to check for any abnormalities.

iv. Lubricate the oil filter shutoff valve O-rings.

v. Drain contents of the rupture disk and purge discharge vent-line drip-leg into an evacuated waste container.

vi. Additional maintenance indicated by equipment manuals.

vii. Provide a written report of completed work, detailed inspection log, and indicate any deficiencies detected.

c. Annually

i. Perform complete system operational test under load conditions.

ii. Sample compressor oil for comprehensive analysis.

iii. Drain and replace oil and filters if indicated by analysis results.

iv. Conduct megohm test on motor windings.

v. Inspect and clean purge system components, including filters and pump.

vi. Inspect starter or variable frequency drive (VFD) components.

vii. Conduct Eddy current testing or NDT inspection of tubes if required.

viii. Update all maintenance logs, control settings, and equipment labels.

ix. Lubricate gantries.

x. Lubricate hinges.

xi. Perform vibration analysis. Data to be collected over a frequency range of 500 cpm to

300,000 cpm.

xii. Additional maintenance indicated by equipment manuals.

xiii. Provide a written report of completed work, detailed inspection log, and indicate any deficiencies detected.

d. General Requirements

i. All preventative maintenance tasks will be updated on the checklist provided by FFDG and uploaded into the FAMIS 360 program for tracking.

ii. If repairs or corrective maintenance outside of the preventative maintenance identified are required, technicians will contact the Service Coordinator with a detailed report of required corrective maintenance.

2. Refrigerant Monitor Preventative Maintenance Tasks

a. All refrigerant monitor preventative maintenance shall be performed at the periodicity recommended by the manufacturer.

b. Inspect monitor housing, wiring, conduit, and hardware for wear, corrosion or physical damage.

c. Inspect sensor modules for expiration dates or environmental damage.

d. Perform power-on tests to confirm proper startup and self-diagnostics.

e. Test alarm indicators.

f. Perform sensor calibration per manufacturer guidelines.

g. Use certified calibrfation gas appropriate for the refrigerant type.

h. Adjust setupoits as required or requested by FFDG.

i. Clean sensors, housings, grills, and boards as recommended.

j. Tighten electrical connections and ensure they are connected as recommended.

k. Replace filters or consumables as needed.

l. Conduct full system operational checks following any maintenance.

m. Restore all panel covers and safety devices.

n. All refrigerant will be recovered using the approved Fermilab process coordinated with the stock room. Refrigerant recovery form will be supplied and must be completed when performing any refrigerant recovery operations.

3. Chiller Corrective Maintenance Tasks

a. Diagnose and repair mechanical, electrical, or control system faults.

b. Replace defective parts such as compressors, purge units, expansion valves, oil pumps, sensors, or control boards.

c. Recover, evacuate, and recharge refrigerant as required (R-123, R-514A, or applicable refrigerant), following EPA Section 608 guidelines.

d. Perform system leak detection and verification testing after repairs.

e. Perform functional tests to ensure system operates within manufacturer tolerances.

f. Inspect and clean condenser and evaporator tubes; brush or chemically clean as needed.

g. Document all repairs with detailed service reports.

DELIVERABLES

1. Completed preventative maintenance reports for each chiller serviced.

2. Corrective maintenance reports including diagnostic findings, parts replaced, and test results.

3. Annual performance summary including efficiency trends and recommendations.

4. Refrigerant usage and recovery documentation compliant with EPA requirements.

SCHEDULE

1. Preventative Maintenance: Performed [Quarterly / Semi-Annually / Annually], as agreed with the

Service Coordinator and based on operational requirements.

2. Corrective Maintenance: Performed as required upon identification of system issues or client request.

FFDG requests that Subcontractor respond to out of service equipment needs within 4 hours of request.

3. Work shall be scheduled to minimize operational disruptions.

GOVERNMENT FURNISHED PROPERTY

All supplies will be obtained from FFDG ISD stockroom operation and will be issued against work order.

PLACE OF PERFORMANCE

Fermi National Accelerator Laboratory (Fermilab), Central Utility Building, Batavia, IL 60510.

ESTIMATED SCHEDULE/PERIOD OF PERFORMANCE

5/4/2026 - 5/3/2031

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