July 22, 1994

Contract \# TW0592

**SPECIAL SPECIFICATION**

**SECTION 15755**

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

[Page]{.underline}

**[PART 1 - GENERAL]{.underline}**

1.01 Description. 2

1.02Related Work. 2

1.03Quality Assurance. 2

1.04References. 2

1.05Submittals. 3

1.06 Delivery, Storage, and Handling. 3

1.07 Project/Site Conditions. 3

**[PART 2 - PRODUCTS]{.underline}**

2.01Acceptable Manufacturers. 4

2.02 Ratings. 4

2.03 Shell-and-Tube Heat Exchangers. 6

2.04 Plate Heat Exchangers. 7

**[PART 3 - EXECUTION]{.underline}**

3.01 Inspection. 8

3.02 Installation/Application/Erection. 8

3.03 Adjusting and Cleaning. 8

3.04 Commissioning.. 8

3.05 Demonstration. 9

**SPECIAL SPECIFICATION**

**SECTION 15755**

**[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
>
> B. Section 15010
>
> C. Section 15250
>
> D. Section 15995

**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, and
> Section 01300.
>
> 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 shop drawings indicating heat exchanger dimensions, rough-in
> requirements, weight loadings and distribution, and clearances
> required around the heat exchanger.
>
> E. 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\. Shell-and-Tube Heat Exchangers:
>
> a\. Amtrol Inc.
>
> b\. Armstrong Pumps, Inc.
>
> c\. Dunham-Bush, Inc.
>
> d\. Harsco Corp.; Patterson-Kelley Co.
>
> e\. ITT Fluid Technology Corporation.; ITT Bell & Gossett.
>
> f\. Taco, Inc.
>
> 2\. Plate Heat Exchangers:
>
> a\. Alfa-Laval Thermal, Inc.
>
> b\. Armstrong Pumps, Inc.
>
> c\. Baltimore Aircoil Company.
>
> d\. ITT Fluid Technology Corporation.; ITT Bell & Gossett.

**2.02 [RATINGS]{.underline}**

> A. Shell and Tube
>
> 1\. Heating Water, Equipment No. 320.
>
> a\. Maximum Design Temperature: 375 deg F (190 deg C).
>
> b\. Maximum Shell Pressure:
>
> 1\) Test: 250 psig (1723 kPa).
>
> 2\) Design: 125 psig (862 kPa).
>
> c\. Maximum Tube Pressure:
>
> 1\) Test: 250 psig (1723 kPa).
>
> 2\) Design: 125 psig (862 kPa).
>
> d\. Heat Exchanger Type: Steam to water.
>
> e\. See Drawing Schedule for additional information.
>
> 2\. Process Deioninzed Water, Equipment No. 335.
>
> a\. Maximum Design Temperature: 450 deg F (228 deg C).
>
> b\. Maximum Shell Pressure:
>
> 1\) Test: 335 psig (2309 kPa).
>
> 2\) Design: 225 psig (1551 kPa).
>
> c\. Maximum Tube Pressure:
>
> 1\) Test: 225 psig (1551 kPa).
>
> 2\) Design: 150 psig (1034 kPa).
>
> d\. Heat Exchanger Type: Water to water.
>
> e\. See Drawing Schedule for additional information.
>
> 3\. High Temperature Process cooling Water, Equipment No. 337.
>
> a\. Maximum Design Temperature: 220 deg F (111 deg C).
>
> b\. Maximum Shell Pressure:
>
> 1\) Test: 150 psig (1034 kPa).
>
> 2\) Design: 75 psig (517 kPa).
>
> c\. Maximum Tube Pressure:
>
> 1\) Test: 150 psig (1034 kPa).
>
> 2\) Design: 75 psig (517 kPa).
>
> d\. Heat Exchanger Type: Steam to water.
>
> e\. See Drawing Schedule for additional information.
>
> B. Plate and Frame
>
> 1\. Process Cooling Water, Equipment No. 315
>
> a\. Maximum Design Temperature:
>
> 1\) Primary: 225 deg. F.
>
> 2\) Secondary: 225 deg. F.
>
> b\. Maximum Test Pressure:
>
> 1\) Primary: 225 psi (1551 kPa).
>
> 2\) Secondary: 225 psi (1551 kPa).
>
> c\. Maximum Design Pressure:
>
> 1\) Primary: 150 psi (1034 kPa).
>
> 2\) Secondary: 150 psi (1034 kPa).
>
> d\. See Drawing Schedule for additional information.

**2.03 [SHELL-AND-TUBE HEAT EXCHANGERS]{.underline}**

> A. Heating Water, Equipment No. 320.
>
> 1\. Shell and Head Materials: Steel shell and cast-iron head.
>
> 2\. Tube and Tube Sheet Materials: Seamless copper tubes with steel
> tube sheets.
>
> 3\. Piping Connections: Flanged shell fluid entry and threaded shell
> fluid exit. Flanged head ports.
>
> B. Process Deioninzed Water, Equipment No. 335.
>
> 1\. Shell and Head Materials: 316 stainless-steel shell and fabricated
> 316 stainless-steel head.
>
> 2\. Tube and Tube Sheet Materials: Seamless copper tubes with steel
> tube sheets.
>
> 3\. Piping Connections: Threaded shell and head ports.
>
> C. High Temperature Process Cooling Water, Equipment No. 337.
>
> 1\. Shell and Head Materials: Ductile iron shell and head.
>
> 2\. Tube: Seamless copper tubes.
>
> 3\. Piping Connections: Victaulic

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

> A. Process Cooling Water, Equipment No. 315
>
> 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.

**[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 form tests and verification procedures required by the
> commissioning process when requested by the Commissioning Authority
> and directed by the General Contractor. See Section 15995.

**3.05 [DEMONSTRATION]{.underline}**

> A. Provide the services of a factory-authorized service representative
> to start-up equipment, demonstrate operation, and train personnel.
>
> B. See Section 15995.
>
> END OF SECTION