**November 21, 1997**

**Contract \# TW-0928**

**SPECIAL SPECIFICATION**

**SECTION 15755-S**

**[HEAT EXCHANGERS]{.underline}**

[Page]{.underline}

[PART 1 - GENERAL]{.underline}

1.01 Description. 2

1.02 Related Work. 2

1.03 Quality Assurance. 2

1.04 References. 2

1.05 Submittals. 3

1.06 Delivery, Storage, and Handling. 3

1.07 Project/Site Conditions. 3

[PART 2 - PRODUCTS]{.underline}

2.01 Acceptable Manufacturers. 4

2.02 Ratings. 4

2.03 Plate & Frame Heat Exchanger. 5

[PART 3 - EXECUTION]{.underline}

3.01 Inspection. 6

3.02 Installation/Application/Erection. 6

3.03 Adjusting and Cleaning. 6

3.04 Commissioning.. 6

3.05 Demonstration. 7

**SPECIAL SPECIFICATION**

**SECTION 15755-S**

**[HEAT EXCHANGERS]{.underline}**

[PART 1 - GENERAL]{.underline}

1.01 [DESCRIPTION]{.underline}

> A. This Section includes heat exchangers for mechanical systems.

1.02 [RELATED WORK]{.underline}

> A. Section 01300-S
>
> B. Section 15010-S
>
> C. Section 15250-S

1.03 [QUALITY ASSURANCE]{.underline}

> A. Manufacturer Qualifications: Firm experienced in manufacturing heat
> exchangers similar to those indicated for this Project and that have a
> record of successful in-service performance.
>
> B. Fabricate and stamp heat exchangers to comply with American Society
> of Mechanical Engineers (ASME) Boiler and Pressure Vessel Code,
> Section VIII, Division 1.
>
> C. Provide completely fill-out ASME Form No. U-1 for each heat
> exchanger to be approved prior to shipping.

1.04 [REFERENCES]{.underline}

> A. ASME Boiler and Pressure Vessel Code, Section VIII, Division 1.
>
> B. ASME Form No. U-1.

1.05 [SUBMITTALS]{.underline}

> A. Make submittals according to this Section, Section 15010-S, and
> Section 01300-S.
>
> B. Submit a completed ASME Form No. U-1 to be approved prior to
> shipping.
>
> C. Submit product data for each heat exchanger, including rated
> capacities, pressure drop, weights (shipping, installed, and
> operating), and installation and startup instructions.
>
> D. Submit maintenance data for heat exchangers in the operation and
> maintenance manual as specified in Section 01300. Include detailed
> manufacturer\'s instructions for servicing heat exchangers.

1.06 [DELIVERY, STORAGE, AND HANDLING]{.underline}

> A. See Section 15010.

1.07 [PROJECT/SITE CONDITIONS]{.underline}

> A. Coordinate layout and installation of heat exchangers with piping
> system and adjacent work. Revise locations and elevations to suit
> field conditions and as approved by the Architect/Engineer (A/E).

[PART 2 - PRODUCTS]{.underline}

2.01 [ACCEPTABLE MANUFACTURERS]{.underline}

> A. Provide products by one of the following:
>
> 1\. Plate Heat Exchangers:
>
> a\. Alfa-Laval Thermal, Inc.
>
> b\. Armstrong Pumps, Inc.
>
> c\. Baltimore Aircoil Company.

d.  ITT Fluid Technology Corporation.; ITT Bell & Gossett.

e.  AGC

B. [Substitutions]{.underline}: only under provisions of Section 1600-S.

2.02 [RATINGS]{.underline}

> A. Plate and Frame
>
> 1\. Process Chilled Water
>
> a\. Maximum Design Temperature:
>
> 1\) Cold side: 230 deg. F.
>
> 2\) Chilled side: 230 deg. F.
>
> b\. Maximum Test Pressure:
>
> 1\) Cold side: 225 psi (1551 kPa).
>
> 2\) Chilled side: 225 psi (1551 kPa).
>
> c\. Maximum Design Pressure:
>
> 1\) Cold side: 150 psi (1034 kPa).
>
> 2\) Chilled side: 150 psi (1034 kPa).
>
> d\. See Drawing Schedule for additional information.

2.03 [PLATE & FRAME HEAT EXCHANGER]{.underline}

> A. Construction
>
> 1\. Plate Material: ASTM A 167, Type 304 stainless-steel shell.
>
> 2\. End Plate Material: Painted carbon steel.
>
> 3\. Gasket Material: Nitrile rubber.
>
> 4\. Piping Connections: Threaded, 2 in. and smaller.
>
> 5\. Piping Connections: Studded for ANSI flange connection, 4 in. and
> larger.

6\. Capable of at least 50% extension capacity.

[PART 3 - EXECUTION]{.underline}

3.01 [INSPECTION]{.underline}

> A. Inspect elements and surfaces to receive work for compliance with
> installation tolerances and for structural rigidity, strength,
> anchors, and other conditions affecting performance of the heat
> exchanger. Do not proceed with installation until unsatisfactory
> conditions have been corrected.

3.02 [INSTALLATION/APPLICATION/ERECTION]{.underline}

> A. Install heat exchangers according to manufacturer\'s written
> instructions.
>
> B. Install heat exchangers plumb and level; anchor with supports.
>
> C. Maintain manufacturer\'s recommended clearances for service and
> maintenance. Install piping connections maintaining clearances for
> service and maintenance of heat exchangers.
>
> D. Install threaded or flanged connections at heat exchangers.
>
> E. Install shutoff valves at heat exchanger inlet and outlet
> connections.
>
> F. Insulate as indicated on the Drawings.

3.03 [ADJUSTING AND CLEANING]{.underline}

> A. Inspect exposed finish after completing system installation,
> including pipe connections, fittings, valves, and specialties. Remove
> burrs, dirt, and construction debris, and repair damaged finishes,
> including chips, scratches, and abrasions.

3.04 [COMMISSIONING]{.underline}

> A. Provide labor, material, equipment, etc., required to facilitate
> the commissioning process.
>
> B. Perform tests and verification procedures required by the
> commissioning process when requested by SNL's Commissioning Authority
> and directed by the General Contractor's Test Engineer.

3.05 [DEMONSTRATION]{.underline}

> A. Provide the services of a factory-authorized service representative
> to start-up equipment, demonstrate operation, and train personnel.
>
> END OF SECTION