July 22, 1994

Contract \# TW0592

**SPECIAL SPECIFICATION**

**SECTION 15460**

**[WATER HEATERS]{.underline}**

[Page]{.underline}

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

1.01 Description. 2

1.02Related Work. 2

1.03Quality Assurance. 2

1.04References. 3

1.05Submittals.. 3

1.06 Delivery, Storage, and Handling. 4

1.07 Warranty. 4

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

2.01Acceptable Manufacturers. 5

2.02Point-of-Use Tankless Electric Water Heaters.. 6

2.03 Commercial Electric Water Heaters. 6

2.04 Commercial Steam-Fired Water Heaters.. 7

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

3.01 Installation/Application/Erection. 9

3.02 Field Quality Control. 9

3.03 Commissioning. 10

**SPECIAL SPECIFICATION**

**SECTION 15460**

**[WATER HEATERS]{.underline}**

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

**1.01 [DESCRIPTION]{.underline}**

> A. This Section includes commercial electric and steam-fired water
> heaters.

**1.02 [RELATED WORK]{.underline}**

> A. Section 01300
>
> B. Section 15010
>
> C. Section 15135
>
> D. Section 15995

**1.03 [QUALITY ASSURANCE]{.underline}**

> A. Provide water heaters complying with Underwriter\'s Laboratories
> (UL) Standards as indicated:
>
> 1\. UL 778 \"Motor Operated Water Pumps.\"
>
> 2\. UL 1453 \"Electric Booster and Commercial Storage Tank Water
> Heaters.\"
>
> B. Provide components complying with National Fire Protection
> Association (NFPA) 70 \"National Electrical Code.\"
>
> C. Provide water heaters that are listed and labeled.
>
> 1\. The terms \"listed\" and \"labeled\" shall be as defined in the
> National Electrical Code Article 100.
>
> 2\. Listing and Labeling Agency Qualifications: A \"Nationally
> Recognized Testing Laboratory\" (NRTL) as defined by 29 Code of
> Federal Regulations 1910.7.
>
> D. Provide water heaters and safety relief valves that comply with
> American Society of Mechanical Engineers (ASME) Boiler and Pressure
> Vessel Code and that bear the appropriate code symbols.
>
> E. Provide water heaters with performance efficiencies not less than
> prescribed in American Society of Heating, Refrigerating, and
> Air-Conditioning Engineers (ASHRAE) 90A, \"Energy Conservation in New
> Building Design.\"
>
> F. Base the types and capacities of water heaters on specific
> descriptions and manufacturers indicated in this Section and on the
> Drawings. Water heaters having equal performance characteristics by
> other manufacturers may be considered based on Section 15010.

**1.04 [REFERENCES]{.underline}**

> A. American National Standards Institute (ANSI) Z21.22.
>
> B. ASHRAE 90A \"Energy Conservation in New Building Design\"
>
> C. ASME Boiler and Pressure Vessel Code
>
> D. 29 Code of Federal Regulations 1910.7
>
> E. NEC Article 100
>
> F. NFPA 70 \"National Electrical Code.\"
>
> G. UL 778, \"Motor Operated Water Pumps.\"
>
> H. UL 1453, \"Electric Booster and Commercial Storage Tank Water
> Heaters.\"

**1.05 [SUBMITTALS]{.underline}**

> A. Make submittals according to this Section, Section 15010, and
> Section 01300.
>
> B. Submit product data including rated capacities of selected models,
> weights (shipping, installed, and operating), furnished specialties,
> and accessories, and indicating dimensions, required clearances, and
> methods of assembly of components, and piping and wiring connections.
>
> C. Submit wiring diagrams from manufacturers detailing electrical
> requirements for electrical power supply wiring to water heaters.
> Include ladder-type wiring diagrams for interlock and control wiring
> required for final installation of water heaters and controls.
> Differentiate between portions of wiring that are factory installed
> and portions that are to be field installed.
>
> D. Submit certificates of shop inspection and data report as required
> by provisions of the ASME Boiler and Pressure Vessel Code.

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

> A. See Section 15010.

**1.07 [WARRANTY]{.underline}**

> A. Submit a written warranty, executed by manufacturer, agreeing to
> repair or replace water heater units that fail in materials or
> workmanship within the specified warranty period. Failures include,
> but are not limited to, tanks, coils, heat exchangers, and burners.
> Issue warranty in addition to, and not a limitation of, other rights
> the Sandia National Laboratory (SNL) may have against the Contractor
> under the specifications.
>
> 1\. Warranty period is 3 years after date of Substantial Completion,
> unless noted otherwise.

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

**2.01 [ACCEPTABLE MANUFACTURERS]{.underline}**

> A. Point-of-Use Tankless Electric Water Heaters:
>
> 1\. Chronomite Laboratories, Inc.
>
> 2\. Controlled Energy Corp.
>
> 3\. Eemax, Inc.
>
> 4\. The Electric Heater Co.
>
> 5\. GSW Water Products Co.
>
> 6\. nternational Technology Sales Corp.
>
> 7\. Keltec, Inc.
>
> 8\. Mor-Flo Industries.
>
> 9\. PVI Industries, Inc.
>
> B. Commercial Electric Water Heaters:
>
> 1\. Bock Waters Heaters, Inc.
>
> 2\. Bradford-White Corp.
>
> 3\. Bryan Steam Corp.
>
> 4\. Cemline Corp.
>
> 5\. GSW Water Products Co.
>
> 6\. Lochinvar Water Heater Corp.
>
> 7\. Precision Parts Corp.
>
> 8\. Rheem Mfg.
>
> 9\. Ruud Mfg. Div.; Rheem Mfg.
>
> 10\. A.O. Smith Water Products Co. Div.; A.O. Smith Corp.
>
> 11\. State Industries, Inc.
>
> C. Commercial Steam-Fired Water Heaters:
>
> 1\. Patterson-Kelly Co.
>
> 2\. PVI Industries, Inc.
>
> 3\. A.O. Smith Water Products Co. Div.; A.O. Smith Corp.

**2.02 [POINT-OF-USE TANKLESS ELECTRIC WATER HEATERS]{.underline}**

> A. Description: Automatic, electric, wall-mounting, tankless type;
> with integral controls.
>
> B. Insulation: Manufacturer\'s standard.
>
> C. Jacket: Aluminum or steel with baked-on enamel finish, or plastic.
>
> D. Heating Element: Resistance heating.
>
> E. Controls: Flow control fitting in inlet piping.
>
> F. Safety Controls: Automatic, high-temperature-limit cutoff.
>
> G. Flow Control Fitting: 0.5 gallon per minute, fixed orifice type.
>
> H. Electric Input: See Drawing Schedule.
>
> I. Electrical Characteristics: See Drawing Schedule.

**2.03 [COMMERCIAL ELECTRIC WATER HEATERS]{.underline}**

> A. Description: Automatic, commercial, electric; with vertical, ASME
> labeled, 150-psig-rated storage tank, integral controls, drain valve,
> and relief valve.
>
> B. Insulation: Fiberglass or polyurethane foam, surrounding tank.
>
> C. Jacket: Steel, with baked-on enamel finish.
>
> D. Tank: Glass-lined steel with anode rods and drain valve.
>
> E. Heating Elements: Screw-in or flanged bolt-in immersion type, in
> multiples of 3 elements.
>
> F. Controls: Adjustable immersion thermostat.
>
> G. Safety Controls: Automatic, high-temperature-limit cutoff and
> low-water cutoff.
>
> H. Temperature and Pressure Relief Valve: ASME rated and labeled.
>
> I. Vacuum Relief Valve: ANSI Z21.22.
>
> J. Storage Capacity: See Drawing Schedule.
>
> K. Minimum Recovery Rate: See Drawing Schedule.
>
> L. Electric Input: See Drawing Schedule.
>
> M. Electrical Characteristics: See Drawing Schedule.

**2.04 [COMMERCIAL STEAM-FIRED WATER HEATERS]{.underline}**

> A. Description: Automatic, commercial, steam-fired; with vertical,
> ASME labeled, 150-pounds-per-square-inch-gage (psig) rated storage
> tank, integral controls, drain valve, and relief valve.
>
> 1\. Steam Pressure: 15 psig
>
> B. Insulation: Fiberglass, surrounding tank.
>
> C. Jacket: Steel, with baked-on enamel finish.
>
> D. Tank: Non-ferrous, nickel-phosphorus alloy-lined steel, with anode
> rods and ball drain valve with 10 year warranty.
>
> E. Tank Connections: Non-ferrous removable/replaceable.
>
> F. Controls: Adjustable thermostat.
>
> G. Control Power: 120 Volts (V).
>
> H. Control Valves: Full-port, solenoid-operated steam and condensate
> flow/temperature.
>
> I. Safety Controls: Temperature limiting device.
>
> J. Heat Exchanger: Self-de-scaling solid copper helical coil.
>
> K. Circulating Pump: See Drawing Schedule.
>
> L. Temperature and Pressure Relief Valve: ASME rated and labeled.
>
> M. Storage Capacity: See Drawing Schedule.
>
> N. Minimum Recovery Rate: See Drawing Schedule.
>
> O. Steam Input: See Drawing Schedule.
>
> P. Lifting Lugs: Yes.
>
> Q. Factory Authorized Start-Up Provided: Yes.

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

**3.01 [INSTALLATION/APPLICATION/ERECTION]{.underline}**

> A. Install water heaters on concrete bases. Set and connect units in
> accordance with manufacturer\'s written installation instructions.
> Install units plumb and level, firmly anchored in locations indicated,
> and maintain manufacturer\'s recommended clearances. Orient so
> controls and devices needing servicing are accessible.
>
> B. Install thermometers on water heater inlet and outlet piping.
> Thermometers are specified in Division 15 Section \"Meters and
> Gages.\"
>
> C. Connections
>
> 1\. Piping installation requirements are specified in other Sections
> of Division 15. The Drawings indicate general arrangement of piping,
> fittings, and specialties. The following are specific connection
> requirements:
>
> a\. Install piping adjacent to equipment arranged to allow servicing
> and maintenance.
>
> b\. Connect hot and cold water piping to units with shutoff valves and
> unions. Extend relief valve discharge to closest floor drain.
>
> 1\) Where water heater piping connections are dissimilar metals, make
> connections with dielectric fittings or dielectric unions specified in
> Division 15 Section \"Basic Piping Materials and Methods.\"
>
> 2\) Install vacuum relief valve in cold water inlet piping.
>
> c\. Install drain as indirect waste to spill into open drain or over
> floor drain.
>
> 1\) Install drain valve at low point in water piping, for water
> heaters not having tank drain.
>
> 2\. Electrical Connections: Power wiring and disconnect switches are
> specified in Division 16.
>
> a\. Grounding: Connect unit components to ground in accordance with
> the National Electrical Code.

**3.02 [FIELD QUALITY CONTROL]{.underline}**

> A. Provide the services of a factory-authorized service representative
> to test and inspect unit installation, provide start-up service, and
> demonstrate and train SNL\'s maintenance personnel as specified below.
>
> 1\. Test and adjust operating and safety controls. Replace damaged and
> malfunctioning controls and equipment.
>
> B. Train SNL\'s maintenance personnel on procedures and schedules
> related to start-up and shutdown, troubleshooting, servicing, and
> preventative maintenance.
>
> 1\. Review data in Operating and Maintenance Manuals. See Section
> 01300.
>
> 2\. Schedule training with at least 7 days, advance notice.

**3.03 [COMMISSIONING]{.underline}**

> A. Provide labor, material, equipment, etc., required to facilitate
> the commissioning process. 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.
>
> END OF SECTION