Copyright 2013 AIA MasterSpec Premium 03/13

PRODUCT MASTERSPEC LICENSED BY ARCOM TO GENERAC POWER SYSTEMS, INC.

Copyright 2013 by The American Institute of Architects (AIA)

Exclusively published and distributed by Architectural Computer Services, Inc. (ARCOM) for the AIA

This Product MasterSpec Section is licensed by ARCOM to Generac Power Systems, Inc. ("Licensee").

This Product MasterSpec Section modifies the original MasterSpec text, and does not include the full content of the original MasterSpec Section.

Revisions made to the original MasterSpec text are made solely by the Licensee and are not endorsed by, or representative of the opinions of, ARCOM or The American Institute of Architects (AIA). Neither AIA nor ARCOM are liable in any way for such revisions or for the use of this Product MasterSpec Section by any end user. A qualified design professional should review and edit the document to suit project requirements.

For more information, contact Generac Power Systems, Inc., S45W29290 Wisconsin 59, Waukesha, WI 53189; Phone: (888) 436-4782; Website: www.generac.com.

For information about MasterSpec contact ARCOM at (800) 424-5080 or visit www.MasterSpec.com.

SECTION 263213 - ENGINE GENERATORS

TIPS:

To view non-printing Editor's Notes that provide guidance for editing, click on Masterworks/SingleFile Formatting/Toggle/Editor's Notes.

To read detailed research, technical information about products and materials, and coordination checklists, click on Masterworks/Supporting Information.

Revise this Section by deleting and inserting text to meet Project-specific requirements.

This Section uses the term "Architect." Change this term to match that used to identify the design professional as defined in the General and Supplementary Conditions.

Verify that Section titles referenced in this Section are correct for this Project's Specifications; Section titles may have changed.

PART 1 - GENERAL

1.1  RELATED DOCUMENTS

Retain or delete this article in all Sections of Project Manual.

  1. Drawings and general provisions of the Contract, including General and Supplementary Conditions and Division01 Specification Sections, apply to this Section.

1.2  SUMMARY

  1. Section includes packaged engine-generator sets for [emergency] [standby] [optional standby] power supply with the following features:

Adjust list below to suit Project.

  1. [Gas] [Diesel] [Bifuel: combined diesel and natural gas] [Dual-Fuel natural-gas with automatic LP backup] engine.
  2. [Unit-mounted] [Remote-mounted] cooling system.
  3. Unit-mounted control and monitoring.
  4. Performance requirements for sensitive loads.
  5. Fuel system.
  6. Integrated Parallel of generator sets.
  7. Load banks.
  8. Outdoor enclosure.
  9. Related Requirements:

Retain subparagraphs below to cross-reference requirements Contractor might expect to find in this Section but are specified in other Sections.

  1. Section263600 "Transfer Switches" for transfer switches including sensors and relays to initiate automatic-starting and -stopping signals for engine-generator sets.

1.3  DEFINITIONS

Retain terms that remain after this Section has been edited for a project.

  1. Operational Bandwidth: The total variation from the lowest to highest value of a parameter over the range of conditions indicated, expressed as a percentage of the nominal value of the parameter.
  2. LP: Liquid petroleum.
  3. EPS: Emergency power supply.
  4. EPSS: Emergency power supply system.
  5. Bifuel: Starting and pilot fuel as diesel, running fuel as natural gas.
  6. Dual-Fuel: Primary fuel as natural gas, backup onsite fuel as LP.
  7. Emergency Power Supply: NEC700, essential for life safety loads. Generator to meet NFPA 110 Level 1.
  8. Standby Power Supply: NEC701, legally required. Generator to meet NFPA 110 Level 2.
  9. Optional Standby Power Supply: NEC702, optional standby.

1.4  ACTION SUBMITTALS

  1. Product Data: For each type of product.
  2. Include rated capacities, operating characteristics, electrical characteristics, and furnished specialties and accessories.
  3. Include thermal damage curve for generator.
  4. Include time-current characteristic curves for generator protective device.

Retain first option in first subparagraph below for diesel-fired units. Retain second option for gas, spark-ignition units.

  1. Include fuel consumption in [gallons per hour] [cubic feet per hour] at 0.8 power factor at 0.5, 0.75 and 1.0 times generator capacity.
  2. Include generator efficiency at 0.8 power factor at 0.5, 0.75 and 1.0 times generator capacity.
  3. Include air flow requirements for cooling and combustion air in cfm at 0.8 power factor and rated load. Testing shall be performed per ISO3046 standards. Provide drawings showing requirements and limitations for location of air intake and exhausts.
  4. Include generator characteristics, including, but not limited to kw rating, efficiency, reactances, and short-circuit current capability.
  5. Shop Drawings:
  6. Include plans and elevations for engine-generator set and other components specified. Indicate access requirements affected by height of subbase fuel tank.
  7. Include details of equipment assemblies. Indicate dimensions, weights, center of gravity of full assembly, loads, required clearances, method of field assembly, components, and location and size of each field connection.
  8. Identify fluid drain ports and clearance requirements for proper fluid drain.
  9. Design calculations for selecting vibration isolators and seismic restraints and for designing vibration isolation bases.
  10. Vibration Isolation Base Details: Detail fabrication including anchorages and attachments to structure and to supported equipment. Include base weights.
  11. Include diagrams for power, signal, and control wiring. Complete schematic, wiring, and interconnection diagrams showing terminal markings for EPS equipment and functional relationship between all electrical components.

1.5  INFORMATIONAL SUBMITTALS

Coordinate "Qualification Data" Paragraph below with qualification requirements in Section014000 "Quality Requirements" and as may be supplemented in "Quality Assurance" Article.

  1. Qualification Data: For [Installer] [manufacturer] [and] [testing agency].
  2. Statement of quality from manufacturer detailing acceptance as an ISO9001 manufacturer.

Retain "Seismic Qualification Certificates" Paragraph below if required by seismic criteria applicable to Project. Coordinate with Section260548.16 "Seismic Controls for Electrical Systems." See ASCE/SEI7 for certification requirements for equipment and components.

  1. Seismic Qualification Certificates: For engine-generator set, accessories, and components, from manufacturer.
  2. Basis for Certification: Indicate whether withstand certification is based on actual test of assembled components or on calculation.
  3. Dimensioned Outline Drawings of Equipment Unit: With engine and generator mounted on rails identify center of gravity and total weight[including full fuel tank], [supplied enclosure,] [external silencer,] [subbase-mounted fuel tank,] [skid-mounted, free standing load bank,] and each piece of equipment not integral to the engine-generator set, and locate and describe mounting and anchorage provisions.
  4. Detailed description of equipment anchorage devices on which the certification is based and their installation requirements.

Coordinate paragraph below with "Source Quality Control" Article.

  1. Source quality-control reports, including, but not limited to the following:

See the Evaluations for discussion about prototype-unit testing.

  1. Certified summary of prototype-unit test report.
  2. Certified Test Reports: For components and accessories that are equivalent, but not identical, to those tested on prototype unit.
  3. Certified Summary of Performance Tests: Certify compliance with specified requirement to meet performance criteria for sensitive loads.
  4. Report of factory test on units to be shipped for this Project, showing evidence of compliance with specified requirements.
  5. Report of sound generation.
  6. Report of exhaust emissions showing compliance with applicable regulations.
  7. Certified Torsional Vibration Compatibility: Comply with NFPA110.

Retain "Field quality-control reports" Paragraph below if Contractor is responsible for field quality-control testing and inspecting.

  1. Field quality-control reports.
  2. Warranty: For special warranty.

1.6  CLOSEOUT SUBMITTALS

  1. Operation and Maintenance Data: For packaged engine generators to include in emergency, operation, and maintenance manuals.
  2. In addition to items specified in Section017823 "Operation and Maintenance Data," include the following:
  3. List of tools and replacement items recommended to be stored at Project for ready access. Include part and drawing numbers, current unit prices, and source of supply.
  4. Operating instructions laminated and mounted adjacent to generator location.
  5. Training plan.

1.7  MAINTENANCE MATERIAL

Extra materials may not be allowed for publicly funded projects.

  1. Furnish extra materials that match products installed and that are packaged with protective covering for storage and identified with labels describing contents.

Quantities below are examples only.

  1. Fuses: One for every 10 of each type and rating but no fewer than one of each.
  2. Indicator Lamps: Two for every six of each type used, but no fewer than two of each.
  3. Filters: One set each of lubricating oil, fuel, and combustion-air filters.
  4. Special Tools: Tools unique to the product for standard maintenance, listed by part number in operations and maintenance manual.

1.8  QUALITY ASSURANCE

  1. Manufacturer Qualifications: Manufacturer accepted as an ISO9001 manufacturer.
  2. Installer Qualifications: Manufacturer's authorized representative who is trained and approved by manufacturer.

Retain "Testing Agency Qualifications" Paragraph below if Contractor selects testing agency or if Contractor is required to provide services of a qualified testing agency in "Field Quality Control" Article. Qualification requirements are in addition to those specified in Section014000 "Quality Requirements," which also defines "NRTL" (nationally recognized testing laboratory).

  1. Third-Party Testing Agency Qualifications: Member company of NETA or an NRTL.
  2. Testing Agency's Field Supervisor: Certified by NETA to supervise on-site testing.

1.9  WARRANTY

When warranties are required, verify with Owner's counsel that special warranties stated in this article are not less than remedies available to Owner under prevailing local laws.

  1. Manufacturer's Warranty: Manufacturer agrees to repair or replace components of packaged engine generators and associated auxiliary components that fail in materials or workmanship within specified warranty period.

Verify available warranties and warranty periods for units and components.

  1. Warranty Period: [2] [5] [7] [10] years from date of Substantial Completion.

PART 2 - PRODUCTS

2.1  MANUFACTURERS

See Editing Instruction No.1 in the Evaluations for cautions about naming manufacturers and products. For an explanation of options and Contractor's product selection procedures, see Section016000 "Product Requirements."

  1. Basis-of-Design Product: Subject to compliance with requirements, provide Generac Power Systems, Inc; [Diesel] [Natural Gas] [Liquified Propane] [Bifuel] model [SD] [SG] [SB] [MD] [MG] [MB] ] <insert model number> generator set, rated <insert kW>, <insert voltage>, [single][three] phase, 60 hz, or a comparable product by one of the following:
  2. Insert manufacturer's name>.
  3. Source Limitations: Obtain packaged generator sets and auxiliary components through one source from a single manufacturer. Generator set shall be standard offering from manufacturer. No special ratings will be permitted.
  4. Engineering changes resulting from the substitution of another product will be the responsibility of the electrical contractor.

2.2  PERFORMANCE REQUIREMENTS

Retain "Seismic Performance" Paragraph below with "Seismic Qualification Certificates" Paragraph in "Informational Submittals" Article for projects requiring seismic design. Delete paragraph if performance requirements are indicated on Drawings. Model building codes and ASCE/SEI7 establish criteria for buildings subject to earthquake motions. Coordinate requirements with structural engineer.

  1. Seismic Performance: Engine-generator set housing, subbase fuel tank, engine-generator set, batteries, battery racks, silencers, [load banks,] and sound attenuating equipment, accessories, and components shall withstand the effects of earthquake motions determined according to [ASCE/SEI7] <Insert requirement>.

Retain first subparagraph below to define the term "withstand" as it applies to this Project. Definition varies with type of building and occupancy and is critical to valid certification. Option is used for essential facilities where equipment must operate immediately after an earthquake.

  1. The term "withstand" means "the unit will remain in place without separation of any parts when subjected to the seismic forces specified[and the unit will be fully operational after the seismic event]."
  2. Shake-table testing shall comply with ICC-ES AC156. Testing shall be performed with all fluids at worst case normal levels.[Water shall be substituted for diesel fuel in fuel tank during test.]

For life-safety components required to function after an earthquake (such as fire-sprinkler systems, components that contain hazardous content, and storage racks in structures open to the public), the Component Importance Factor is 1.5. For other components, the Component Importance Factor is 1.0 unless the structure is in Seismic Use GroupIII and component is necessary for continued operation of facility or failure of component could impair continued operation of facility, in which case the Component Importance Factor is 1.5.

  1. Component Importance Factor: [1.5] [1.0].

For NFPA compliance, additional standards that may apply are: NFPA20 (fire pumps), NFPA30 (fuel oil tanks), NFPA54 (natural gas) and NFPA57 (LP Gas).

  1. NFPA Compliance:
  2. Comply with NFPA37.
  3. Comply with NFPA70.

Retain first subparagraph below for healthcare facilities.

  1. Comply with NFPA99.

Retain subparagraph below if generator is automatically started. See the Evaluations for discussion of emergency generator Level requirements.

  1. Comply with NFPA110 requirements for Level[1] [2] emergency power supply system.
  2. UL Compliance: Comply with UL2200/CSA.

Selection of Tier2 or 3 in "Engine Exhaust Emissions" Paragraph below is dependent on the size of the engine. See discussion in the Evaluations and refer to EPA and manufacturer's documentation.

  1. Engine Exhaust Emissions: Comply with EPA Tierrequirements and applicable state and local government requirements.

Retain "Noise Emission" Paragraph below for installations with critical noise-abatement requirements, particularly outdoor generator sets. Coordinate with noise-reduction features in the design, including those relating to cooling-air intake and discharge arrangement and muffler specification and its location and orientation as shown on Drawings. See the Evaluations for discussion of noise generation and regulations.

  1. Noise Emission: Comply with [applicable state and local government requirements] <Insert Project criteria> for maximum noise level at [adjacent property boundaries] <Insert critical locations> due to sound emitted by generator set including engine, engine exhaust, engine cooling-air intake and discharge, and other components of installation.
  2. Environmental Conditions: Engine-generator system shall withstand the following environmental conditions without mechanical or electrical damage or degradation of performance capability:

Retain first option in "Ambient Temperature" Subparagraph below if generator-set start time must be within NFPA110 limits. This temperature range usually implies installation indoors in heated space. Coordinate with Drawings. Retain first option in "Ambient Temperature" subparagraph below for spark-ignited model. Retain the second option for diesel-fired and bifuel units.

  1. Ambient Temperature: [5 to 40 degC for spark-ignited] [Minus 15 to plus 50 degC for diesel-fired and bifuel].

Delete "Relative Humidity" Subparagraph below for outdoor units.

  1. Relative Humidity: Zero to 95 percent.
  2. Altitude: Sea level to [1000 feet (300m)] <Insert altitude>.

If unusual service conditions for equipment exist and cannot be eliminated, specify them in "Unusual Service Conditions" Paragraph below. See the Evaluations for further discussion of service conditions.