PROJECT MANAGEMENT ORGANIZATION (PMO)

INFRASTRUCTURE SERVICES DIRECTORATE (IS)

CONSTRUCTION SPECIFICATIONS

FOR

Building 350 Chiller Replacement Phase II

ARGONNE NATIONAL LABORATORY

9700 SOUTH CASS AVENUE

ARGONNE, ILLINOIS 60439

ANL DOCUMENT NUMBER J350-158-W-T002

Approved, Project Manager (PM)

N. Hernandez Date

Construction Management Program Manager (CMPM)

C. Baltas Date

Concurred, Quality Assurance Representative (QAR)

L. Polowy Date

Revision #

Date

Approved, Project Manager

Page: Cover

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Argonne National Laboratory January 12, 2026 Building 350 Chiller Replacement Phase II Pre-Purchase Lemont, Illinois Work Project No: J350 (CD 006464.35) Document No: J350-158-W-T002

TABLE OF CONTENTS 000110 - 1

TABLE OF CONTENTS

Section # Section Title Author Date

000001 Cover CD 01/12/26

000110 Table of Contents CD 01/12/26

DIVISION 23 – HEATING, VENTILATING, AND AIR

CONDITIONING

236416 Centrifugal Water Chillers CD 01/12/26

END OF TABLE OF CONTENTS

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SECTION 236416 - CENTRIFUGAL WATER CHILLERS – PRE-PURCHASE

PART 1 - GENERAL

1.1 SCOPE OF WORK

A. Furnish a water-cooled chiller with variable speed, oil free centrifugal compressor. The chiller is being pre-purchased by the Owner to expedite the delivery and construction schedule of the project.

B. The chiller shall meet the performance criteria as identified within this specification and described in drawings (ref. J350-158-W-M501).

C. The unit will be delivered on site to the Argonne National Laboratory, Building 046 at 9700 S.

Cass Avenue in Lemont, IL.

D. The new chiller module shall be fully and natively compatible with (2) existing modular chiller units (Trane TACW110AT3546-MINIMOD) and shall operate with them as a single integrated chiller plant. Compatibility shall not require gateways, protocol converters, supervisory controllers, BAS-based sequencing, third-party interface devices, custom programming, or additional hardware or software other than manufacturer-provided, factory-supported firmware updates required for module integration. The new module shall communicate directly with the existing modules using the same native communication protocol and shall participate as an equal peer in internal chiller staging, sequencing, and safeties. The new module shall be physically and hydraulically compatible with the existing modules and operate in parallel without additional equipment.

E. Manufacturer’s authorized local representative shall provide field start-up, controls integration, and operator training services for the chiller system. Services shall include start-up, system setup, controls integration, and all required firmware and control software updates on the existing chiller modules to recognize and integrate the new module into the modular chiller array via the onboard controller and CANbus communication network. Start-up and training services shall be included in the cost of the chiller.

F. The manufacturer shall provide commissioning assistance for all (3) chiller modules, excluding manufacturer start-up services defined in Paragraph E, including a minimum of 48 hours of non-start-up commissioning support to support functional testing, verification, and documentation activities. Commissioning shall be led by a third-party agent retained by the Owner, and the Contractor shall comply with the commissioning requirements defined in the Contract Drawings and Specifications.

1.2 DEFINITIONS

A. EER: Energy-efficiency ratio.

B. IPLV: Integrated part-load value.

1.3 SUBMITTALS

A. General: Submit product data and shop drawings along with the pre-purchase bid. Bids without equipment submittal will be rejected.

1.4 ACTION SUBMITTALS

A. Product Data: Include refrigerant, rated capacities, operating characteristics, furnished specialties, and accessories.

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B. Shop Drawings: Complete set of manufacturer's certified prints of water chiller assemblies, control panels, sections and elevations, and unit isolation. Include the following:

1. Assembled unit dimensions.

2. Operating weight and load distribution.

3. Required clearances for maintenance and operation.

4. Size and location of piping and wiring connections.

5. Wiring Diagrams: Power, signal, and control wiring.

6. Factory controls and integrated sequence of operations.

C. Coordination Drawings: Floor plans drawn to scale and coordinated with the following:

1. Structural supports.

2. Piping roughing-in requirements.

3. Wiring roughing-in requirements, including spaces reserved for electrical equipment.

4. Access requirements, including working clearances for mechanical controls and electrical equipment, and tube pull and service clearances.

D. Certificates: For certification required in "Quality Assurance" Article.

1.5 INFORMATIONAL SUBMITTALS

A. Source Quality Control Test Reports.

B. Startup service reports.

1.6 CLOSEOUT SUBMITTALS

A. Operation and Maintenance Data: For each water chiller to include in emergency, operation, and maintenance manuals.

1. Special Warranty Information: Special warranties specified in this Section.

1.7 QUALITY ASSURANCE

A. ARI Certification: Signed by manufacturer certifying compliance with requirements in ARI 550/590, "Water Chilling Packages Using the Vapor Compression Cycle."

B. ASHRAE Certification: Signed by manufacturer certifying compliance with ASHRAE 15 for safety code for mechanical refrigeration. Comply with ASHRAE Guideline 3 for refrigerant leaks, recovery, and handling and storage requirements.

C. ASME Compliance: Fabricate and label water chiller heat exchangers to comply with ASME Boiler and Pressure Vessel Code: Section VIII, Division 1.

D. Comply with NFPA 70.

E. Comply with UL 1995.

F. Green Seal Certification: Signed by manufacturer certifying compliance with Green Seal's GS- 31.

1.8 DELIVERY, STORAGE, AND HANDLING

A. Ship water chillers from the factory fully charged with refrigerant.

1.9 COORDINATION

A. Coordinate size and location of concrete bases. Cast anchor-bolt inserts into bases.

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1.10 WARRANTY

A. Special Warranty: Manufacturer agrees to repair or replace components of water chillers that fail in materials or workmanship for one (1) year. Manufacturer agrees to repair or replace compressor that fails in materials or workmanship for five (5) years.

PART 2 - PRODUCTS

2.1 MANUFACTURERS

A. Manufacturers: Subject to compliance with requirements, provide products by one of the following:

1. Trane Company (The).

2. YORK International Corporation.

3. Multistack

2.2 PACKAGED WATER CHILLERS

A. Description: Factory-assembled and -tested water chiller complete with compressor, evaporator, condenser, controls, interconnecting unit piping and wiring, manufacturer provided header, indicated accessories, and mounting frame.

B. Fabricate water chiller mounting frame and attachment to the pressure vessel with reinforcement strong enough to resist water chiller movement during a seismic event when the water chiller mounting frame is anchored to the building structure.

C. Water Chiller Characteristics and Capacities: Refer to Drawings.

2.3 COMPRESSORS

A. Description: Variable displacement with oil-free, direct-drive motor.

1. Casing: Cast iron, precision ground.

2. Impeller: High strength, cast-aluminum alloy on carbon- or forged-steel shaft; dynamically balanced(Centrifugal only).

B. Capacity Control: Variable-inlet guide-vane assembly for stable operation that is free of surge, cavitation, or vibration throughout throttling range from 100 to 10 percent of full load.

C. Refrigerant and Oil: R-513a.

D. Refrigerant Compatibility: Seals, O-rings, motor windings, and internal water chiller parts exposed to refrigerants shall be fully compatible with refrigerants, and pressure components shall be rated for refrigerant pressures.

2.4 HEAT EXCHANGERS

A. Evaporator:

1. Description: Shell-and-tube design, ASME labeled.

2. Shell Material: Carbon steel.

3. Tube Construction: Individually replaceable, expanded into tube sheets.

a. Material: Copper

b. Minimum Size: 3/4-inch (19-mm) OD; 0.025-inch (0.64-mm) wall thickness.

c. Internal Finish: Enhanced

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4. Water Box: Standard, with design working pressure of 150 psig (1035 kPa), and having flanged water-nozzle connections with a thermistor-type temperature sensor factory installed in each nozzle.

B. Condenser:

1. Description: Shell-and-tube design.

2. Shell Material: Carbon steel.

3. Tube Construction: Externally enhanced and individually replaceable, expanded into tube sheets.

a. Material: Copper.

b. Minimum Size: 3/4-inch (19-mm) OD; 0.025-inch (0.64-mm) wall thickness.

c. Internal Finish: Enhanced.

4. Water Box: Standard, with design working pressure of 150 psig (1035 kPa), and having

4. flanged water-nozzle connections with a thermistor-type temperature sensor factory

4. installed in each nozzle. Heat-Reclaim Condenser: A separate heat exchanger identical to condenser.

2.5 INSULATION

A. Cold Surfaces: Closed-cell, flexible elastomeric, thermal insulation complying with ASTM C 534, Type II, for sheet materials.

1. Thickness: 3/4 inch (19 mm)

2. Adhesive: As recommended by insulation manufacturer.

3. Factory apply insulation over entire surfaces of water chiller components.

a. Apply adhesive to 100 percent of insulation contact surface.

b. Seal seams and joints.

c. After adhesive has fully cured, apply two coats of protective coating to insulation.

2.6 ACCESSORIES

A. Pressure Relief Valve: Multiple-reseating-type, spring-loaded relief valve.

B. Evaporator/Condenser Motorized Isolation Valves: Butterfly valve with motorized actuator sized and rated for required system pressures and temperatures. Manufacturer shall install all motorized actuator valves with the actuator shaft oriented parallel to the ground to allow installation of a gravity switch for open-position detection.

C. Evaporator Flow Switch.

2.7 CONTROLS

A. Control Panel: Stand-alone, microprocessor based.

B. Protocol: BACnet MS/TP.

C. Enclosure: Unit-mounted, NEMA 4-12, Type 1 enclosure, hinged or lockable; factory wired with a single-point power connection and a separate control circuit.

D. Status Display: Multiple-character liquid-crystal display or light-emitting diodes and keypad.

Display the following conditions:

1. Date and time.

2. Operating or alarm status.

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3. Operating hours.

4. Outside-air temperature if required for chilled-water reset.

5. Temperature and pressure operating set points.

6. Entering and leaving temperatures of chilled water and condenser water.

7. Refrigerant pressures in evaporator and condenser.

8. Saturation temperature in evaporator and condenser.

9. Oil temperature and pressure.

10. Percent of maximum motor amperage.

11. Current-limit set point.

12. Number of compressor starts.

E. Control Functions:

1. Manual or automatic startup and shutdown time schedule.

2. Entering and leaving chilled-water temperatures, control set points, and motor load limit.

Chilled-water temperature shall be reset based on return-water temperature.

3. Current limit and demand limit.

4. Condenser-water temperature.

5. External water chiller emergency stop.

F. Manually Reset Safety Controls: The following conditions shall shut down water chiller and require manual reset:

1. Low evaporator pressure high condenser pressure.

2. Low chilled-water temperature.

3. Low oil differential pressure.

4. High or low oil pressure.

5. High oil temperature.

6. High compressor-discharge temperature.

7. Loss of chilled- or condenser-water flow.

8. Electrical overload.

9. Sensor- or detection-circuit fault.

10. Starter fault.

11. Extended compressor surge.

12. Excessive air-leakage detection.

G. Building Management System Interface: Factory-installed hardware and software to enable building management system to monitor and control chilled-water set point and chiller-control displays and alarms.

H. Stand-Alone Operation and Safety Interlocks:

1. Chiller and associated pumps shall be capable of continued operation in the event of loss of communication with the Master Controller or building management system, provided all local safeties and interlocks are satisfied.

2. Each chiller module shall be provided with the following factory-installed, hardwired safety devices:

a. Power phase monitor to protect against phase loss, phase reversal, voltage imbalance, and abnormal voltage conditions.

b. Evaporator flow switch to prove chilled-water flow prior to compressor operation.

2.8 VARIABLE-FREQUENCY CONTROLLERS

A. Controllers included in chilled water package, not to be bought separately. Manufacturer is Danfoss.

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B. Description: NEMA ICS 2; listed and labeled as a complete unit and arranged to provide variable speed by adjusting output voltage and frequency.

1. Enclosure: Unit mounted, NEMA 250, Type 1, with hinged access door with lock and key.

C. Output Rating: 3-phase; 6 to 60 Hz, with voltage proportional to frequency throughout voltage range.

D. Unit Operating Requirements:

1. Input AC Voltage Tolerance: 460-V ac, plus 10 percent or 506 V maximum

2. Input frequency tolerance of 60 Hz, plus or minus 2 Hz.

3. Capable of driving full load, under the following conditions, without derating:

a. Ambient Temperature: 0 to 40 deg C.

b. Humidity: Less than 90 percent (noncondensing).

c. Altitude: 3300 feet (1005 m).

4. Minimum Efficiency: 96 percent at 60 Hz, full load.

5. Minimum Displacement Primary-Side Power Factor: 95 percent without optional harmonic filter, and 98 percent with optional filter.

6. Overload Capability: 1.05 times the full-load current for 7 seconds.

7. Starting Torque: 100 percent of rated torque or as indicated.

8. Speed Regulation: Plus or minus 1 percent.

9. Isolated control interface to allow controller to follow control signal over an 11:1 speed range.

E. Internal Adjustability Capabilities:

1. Minimum Speed: 50 percent of maximum rpm.

2. Maximum Speed: 100 percent of maximum rpm.

3. Acceleration: 2 to a minimum of 12 seconds.

4. Current Limit: 50 to a minimum of 110 percent of maximum rating.

F. Self-Protection and Reliability Features:

1. Snubber networks to protect against malfunction due to system voltage transients.

2. Under- and overvoltage trips; inverter overtemperature, overload, and overcurrent trips.

3. Instantaneous line-to-line and line-to-ground overcurrent trips.

4. Loss-of-phase protection.

5. Reverse-phase protection.

6. Short-circuit protection.

7. Motor overtemperature fault.

G. Automatic Reset and Restart: To attempt three restarts after controller fault or on return of power after an interruption and before shutting down for manual reset or fault correction.

1. Maximum Restarts per Hour: 15.

H. Power-Interruption Protection: To prevent motor from re-energizing after a power interruption until motor has stopped.

I. Status Lights: Door-mounted, liquid-crystal-display or light-emitting-diode indicators shall indicate the following conditions:

1. Power on.

2. Run.

3. Overvoltage.

4. Line fault.

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5. Overcurrent.

6. External fault.

J. Indicating Devices: Digital readout devices and selector switch, mounted flush in controller door and connected to indicate the following controller parameters:

1. Output frequency (Hz).

2. Motor speed (rpm).

3. Motor status (running, stop, fault).

4. Motor current (amperes).

5. Fault or alarming status (code).

6. DC-link voltage (V dc).

7. Motor output voltage (V).

K. Control Signal Interface:

1. Electric Input Signal Interface: A minimum of 2 analog inputs (0 to 10 V or 0/4-20 mA) and 6 programmable digital inputs.

2. Remote Signal Inputs: Keypad display for local hand operation. Capability to accept the following speed-setting input signals from building management system or other control systems through an RS485 interface:

a. 0 to 10-V dc.

b. 0-20 or 4-20 mA.

c. Potentiometer using up/down digital inputs.

d. Fixed frequencies using digital inputs.

3. Remote Indication Interface: A minimum of 2 dry circuit relay outputs (120-V ac, 1 A) for remote indication of the following:

a. Motor running.

b. Fault and warning indication (overtemperature or overcurrent).

L. Integral Disconnecting Means: NEMA AB 1, instantaneous-trip circuit breaker with lockable handle.

M. Harmonic Distortion Filter: Field mounted and wired and complying with IEEE 519.

N. Accessories: Devices shall be factory installed in controller enclosure, unless otherwise indicated.

2.9 SOURCE QUALITY CONTROL

A. Factory test and rate water chillers, before shipping, according to ARI 550/590, "Water Chilling Packages Using the Vapor Compression Cycle." Stamp with ARI label.

B. Factory test heat exchangers hydrostatically at 1.25 times the design pressure.

C. Factory test and inspect evaporator and water cooled-condenser according to ASME Boiler and Pressure Vessel Code: Section VIII, Division 1. Stamp with ASME label.

D. Factory test and inspect water boxes at 125 percent of working pressure.

E. Rate sound power level according to ARI 575 procedure.

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PART 3 - EXECUTION

Responsibility of Installer

END OF SECTION 236416