Section_J_-_Att_No__003_Construction_Specifications.pdf

MUIR WOODS NATIONAL MONUMENT

MILL VALLEY, CALIFORNIA

Replace HVAC System, Flooring, and Electrical at Muir Woods Administration Building

MUWO 324995

CONSTRUCTION SPECIFICATIONS

NATIONAL PARK SERVICE (NPS)

Golden Gate National Recreation Area (GOGA)/

Muir Woods National Monument (MUWO)

October 14, 2022

RFQ 140P8623Q0012

Section J - Att No. 003

09 65 16 - 1

SECTION 09 65 16

LOCKING ENGINEERED HARDWOOD FLOORING

PART 1 - GENERAL

1.1 SUMMARY

A. Section Includes:

1. Locking engineered hardwood flooring with underlayment

2. Shoe molding

1.2 SUBMITTALS

A. Submittal Procedures: Section 01 33 23, SHOP DRAWINGS, PRODUCT DATA, AND

SAMPLES.

1. Show size, configuration, and fabrication and installation details.

B. Manufacturer's Literature and Data:

1. Description of each product.

2. Installation instructions.

3. Warranty.

C. Samples:

1. Flooring material, 1-1/2 inch by 12 inc), of each proposed color (color to match existing hardwood stain color).

2. Certificates: Quality Control Certificate Submittals and lists specified in paragraph, QUALIFICATIONS.

D. Sustainable Construction Submittals:

1. Low Pollutant-Emitting Materials:

a. Identify volatile organic compound types and quantities.

1.3 QUALITY ASSURANCE

A. Installer Qualifications: A company specializing in installation with minimum three (3) years’ experience and employs experienced flooring installers who have retained, and currently hold, an

INSTALL Certification, or a certification from a comparable certification program.

1. Installers to be certified by INSTALL or a comparable certification program with the following minimum criteria:

a. Manufacturer endorsed training.

B. Furnish product type materials from the same production run.

1.4 DELIVERY

A. Deliver products in manufacturer's original sealed packaging.

09 65 16 - 2

B. Mark packaging, legibly. Indicate manufacturer's name or brand, type, color, production run number, and manufacture date.

C. Before installation, return or dispose of products within distorted, damaged, or opened packaging.

1.5 STORAGE AND HANDLING

A. Store products indoors in dry, weathertight facility.

B. Protect products from damage during handling and construction operations.

1.6 FIELD CONDITIONS

A. Environment:

1. Work Area Ambient Temperature Range: Minimum 55 to 100 degrees F continuously, beginning 48 hours before installation.

2. Install products when building is permanently enclosed and when wet construction is completed, dried, and cured.

1.7 WARRANTY

A. Manufacturer's Warranty: Warrant locking engineered hardwood flooring against material and manufacturing defects.

PART 2 - PRODUCTS

2.1 SYSTEM PERFORMANCE

A. Flooring:

1. Technology: Spill Protect

2.2 PRODUCTS - GENERAL

A. Basis of Design: Pergo Defense+ with SpillProtect

B. Provide hardwood color and pattern from one production run.

2.3 LOCKING ENGINEER HARDWOOD FLOORING

A. Locking Engineered Hardwood (LEH): engineered hardwood, without backing. Underlayment to be separate.

1. Wear Surface Texture: Satin.

2. Thickness: minimum 0.370 inches.

3. Species: Oak

4. Color: Match existing hardwood stain color

5. Technology: SpillProtect

09 65 16 - 3

2.4 ACCESSORIES

A. Stair Nosing: Flooring manufacturer’s standard, in color matching field color.

B. Thresholds: Flooring manufacturer's standard, in color matching field color of flooring.

C. T-Bars: Flooring manufacturer's standard, in color matching field color of flooring.

D. Shoe Molding: Flooring manufacturer's standard, in color matching field color of flooring. Do not nail through floating floor.

E. Underlayment: Flooring manufacturer’s standard.

F. Polish: Type recommended by flooring manufacturer to suit application and anticipated traffic.

PART 3 - EXECUTION

3.1 PREPARATION

A. Examine and verify substrate suitability for product installation.

B. Protect existing construction and completed work from damage.

C. Remove existing carpet tile to permit new installation.

1. Complete testing of carpet and carpet glue to verify the lack of hazardous materials.

Submitting testing report to the CO and COR prior to the start of work.

2. Do not use solvents for removing adhesives.

3. Legally recycle of removed materials.

D. Ensure interior finish work such as electrical and HVAC is complete and before installation.

1. Complete mechanical, electrical, and other work above ceiling line.

2. Ensure heating, ventilating, and air conditioning systems are installed and operating in order to maintain temperature and humidity requirements.

E. Correct substrate deficiencies.

1. Fill cracks, pits, and dents with leveling compound.

2. Level flooring substrate to 3 mm (1/8 inch) maximum variation.

F. Clean substrates. Remove contaminants capable of affecting subsequently installed product's performance.

1. Mechanically clean concrete floor substrate according to ASTM D4259.

2. Surface Profile: ICRI 310.2R CSP 3 to CSP 4.

G. Perform flooring manufacturer’s substrate moisture content and pH tests.

H. Broom and vacuum clean substrates immediately before flooring installation.

3.2 INSTALLATION - GENERAL

A. Install products according to manufacturer's instructions.

09 65 16 - 4

1. When manufacturer's instructions deviate from specifications, submit proposed resolution for Contracting Officer's Representative consideration.

3.3 INSTALLATION OF FLOORING

A. Flooring Layout:

1. Arrange pattern in one direction.

2. Extend flooring wall-to-wall (with required expansion gaps), under cabinets, casework, and other equipment for seamless flooring installation.

3. Arrange planks to minimize seams.

4. Locate joints a minimum 6 inches away from parallel joints in flooring substrates.

B. Install flooring flush with adjacent floor finishes.

C. Extend flooring into toe spaces, door reveals, closets, and similar openings.

D. Butt joints tight, without gaps and bulges.

E. Installation of Edge Strips:

1. Install edge strips at flooring terminations and transitions to other floor finishes.

2. Locate edge strips under center lines of doors unless otherwise indicated.

3. Set edge strips and mechanically fasten to substrate.

3.4 INTEGRAL COVE BASE INSTALLATION

A. Install shoe molding at floor intersection with walls and other vertical surfaces.

B. Install by nailing molding into baseboards. Do not nail into the flooring.

C. Cope inside corners.

D. Ease exposed edges at doors. Stain exposed grain to match stain color of the molding.

3.5 CLEANING

A. Clean and polish materials as recommended by the manufacturer.

B. Vacuum floor thoroughly.

C. Perform initial maintenance according to flooring manufacturer’s instructions.

3.6 PROTECTION

A. Protect flooring from traffic and construction operations.

B. Keep traffic off sheet flooring for minimum 24 hours after installation.

C. Remove protective materials immediately before acceptance.

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MUWO 324995 AIR-SOURCE HEAT PUMPS 10.14.22

SECTION 23 81 43

AIR-SOURCE UNITARY Heat pumps

PART 1 - GENERAL

1.1 DESCRIPTION

A. This Section specifies electrically operated air-source unitary heat pumps.

B. Definitions:

1. Coefficient of Performance (COP) - Cooling: The ratio of the rate of heat removed to the rate of energy input in consistent units, for a complete refrigerating system or some specific portion of that system under designated operating conditions.

2. Coefficient of Performance (COP) - Heating: The ratio of the rate of heat delivered to the rate of energy input is consistent units for a complete heat pump system, including the compressor and, if applicable, auxiliary heat under designated operating conditions.

3. Energy Efficiency Ratio (EER): The ratio of net cooling capacity is Btu/h to total rate of electricity input in watts under designated operating conditions.

4. Heating Seasonal Performance Factor (HSPF) - Total heating output of heat pump during its normal annual usage period for heating in Btu/h divided by total electric energy input in watts during the same period.

5. Seasonal Energy Efficiency Ratio (SEER) - Total cooling output of an air conditioner during its normal annual usage period for cooling in Btu/h divided by total electric energy input in watts during the same period.

6. Air-Source Unitary Heat Pump: One or more factory made assemblies that normally include an indoor conditioning coil, compressor(s) and an outdoor refrigerant-to-air coil. These units provide both heating and cooling functions.

1.2 RELATED WORK

E. Section 23 05 11, COMMON WORK RESULTS FOR HVAC: General mechanical requirements and items, which are common to more than one section of Division 23.

1.3 QUALITY ASSURANCE:

A. Refer to specification Section 23 05 11, COMMON WORK RESULTS FOR HVAC

B. Comply with ASHRAE Standard 15, Safety Code for Mechanical Refrigeration.

C. Comply with ASHRAE Standard 90.1, Energy Standard for Buildings except Low-Rise

Residential Buildings for cooling and heating performance requirements when tested in accordance with AHRI 240AHRI 360 and UL 1995.

D. Heating Performance shall conform to ASHRAE requirements when tested in accordance with

AHRI 240 AHRI 360 and UL 1995.

E. Comply with requirements in Section 13 05 41, Seismic Restraint Requirements for Non-

Structural Components.

1.4 SUBMITTALS

A. Submit in accordance with specification Section 01 33 23, SHOP DRAWINGS, PRODUCT

DATA, and SAMPLES.

B. Manufacturer’s Literature and Data.

1. Air-Source Unitary Heat pump:

b. Split system

C. Certification: Submit, simultaneously with shop drawings, a proof of certification that this product has been certified by AHRI.

D. Performance Rating: Submit catalog selection data showing equipment ratings and compliance with required cooling and heating capacities EER and COP values as applicable. Also show sound pressure levels in dBA.

PART 2- PRODUCTS

2.1 UNITARY HEAT PUMPS, AIR TO AIR

Basis of Design- Mitsubishi MXZ-3C30NA2. Must meet salient characteristics or equal:

A.

1. Unitary heat pumps shall have a minimum Heating Season Performance Factor (HSPF) of

10.0 (Type II – Split System), and a minimum Seasonal Energy Efficiency Ratio (SEER) of

17 (Type II – Split System).

2. Unitary heat pumps shall have a maximum sound pressure rating of 56 dBA. Any mounted equipment shall use isolation pads. The use of approved compressor sound blankets will be allowed. Sound blankets must be manufacture approved for use with the specific equipment.

B. Applicable AHRI Standards: Units shall be listed in the corresponding ARI Directory of Certified products shown in paragraph, APPLICABLE PUBLICATIONS:

1. Air Source Unitary heat pumps with capacity less than 19 KW (65,000 Btu/hr), Comply with

AHRI 210/240.

C. Casing: Unit shall be constructed of zinc coated, galvanized steel. Exterior surfaces shall be cleaned, phosphatized, and finished with a weather-resistant powder-coated finish for seacoast/marine environments. Unit surfaces shall be tested 960 hours in a salt spray test in compliance with ASTM B117. Cabinet panels shall have lifting handles and shall be water- and air-tight seal. Surfaces in contact with the airstream shall comply with requirements in ASHRAE

62.1.

E. Compressors: Compressors shall be direct-drive, hermetic scroll type with centrifugal type oil pumps. Motor shall be suction gas-cooled. Internal overloads shall be utilized with all compressors.

F. Refrigerant Circuit: A minimum of two circuits is required. Each refrigerant circuit shall have independent fixed orifice or thermostatic expansion devices, service pressure ports, and refrigerant line filter driers factory installed as standard. An area shall be provided for replacement suction line driers.

G. Evaporator and Condenser Coils: Internally finned, DN 10 (NPS 3/8) copper tubes mechanically bonded to a configured aluminum plate fin shall be standard. The evaporated coil and condenser coil shall be leak tested at the factory to 1378 kPa (200 psig) and pressure tested to 2756 kPa (400 psig). All dual compressor units shall have intermingled evaporator coils. Sloped condensate drain pans shall be provided.

H. Outdoor fans: Direct driven, statically and dynamically balanced, draw-through in the vertical discharge position. The fan motors shall be permanently lubricated and shall have built-in thermal overload protection.

J. Defrost Controls: A time initiated, temperature terminated defrost system shall ship with a setting of 70-minute cycle, with a choice of 50- or 90-minute cycle. Adaptive demand defrost shall be provided on units below 35 kW (10 Tons).

K. Unit Electrical

1. Provide single point unit power connection.

2. Unit control box shall be located within the unit and shall contain controls for compressor, reversing valve and fan motor operation and shall have a 50 VA 24-volt control circuit transformer and a terminal block for low voltage field wiring connections.

3. Safety Controls - High pressure, low temperature, and low-pressure safety switches shall be wired through a latching lockout circuit to hold the conditioner off until it is reset electrically be interrupting the power supply to the conditioner. All safety switches shall be normally closed, opening upon fault detection.

L. Operating Controls

1. Provide unit with low voltage electric controls

2. Low voltage, adjustable room thermostat to control heating and cooling in sequence with delay between stages, compressor and supply fan to maintain temperature setting. Include system selector switch off-heat-auto-cool) and fan control switch (auto-on).

2.2 CORROSION PROTECTION

A. Remote Outdoor Condenser Coils:

1. Epoxy Immersion Coating – Electrically Deposited: The multi-stage corrosion-resistant coating application comprises of cleaning (heated alkaline immersion bath) and reverse-osmosis immersion rinse prior to the start of the coating process. The coating thickness shall be maintained between 0.6-mil and 1.2-mil. Before the coils are subjected to high-temperature oven cure, they are treated to permeate immersion rinse and spray. Where the coils are subject to UV exposure, UV protection spray treatment comprising of UV-resistant urethane mastic topcoat shall be applied. Provide complete coating process traceability for each coil and minimum five years of limited warranty. The coating process shall be such that uniform coating thickness is maintained at the fin edges. The quality control shall be maintained by ensuring compliance to the applicable ASTM Standards for the following:

a. Salt Spray Resistance (Minimum 6,000 Hours)

b. Humidity Resistance (Minimum 1,000 Hours)

c. Water Immersion (Minimum 260 Hours)

d. Cross-Hatch Adhesion (Minimum 4B-5B Rating)

e. Impact Resistance (Up to 160 Inch/Pound)

B. Exposed Outdoor Cabinet:

1. Casing Surfaces (Exterior and Interior): All exposed and accessible metal surfaces shall be protected with a water-reducible acrylic with stainless steel pigment spray-applied over the manufacturer’s standard finish. The spray coating thickness shall be 2-4 mils and provide minimum salt-spray resistance of 1,000 hours (ASTM B117) AND 500 hours UV resistance

ASTM D4587-11(2019)e.

part 3- execution

3.1 Installation

A. Install heat pumps according to manufacturers printed instructions. Install isolation pads.

B. Install electrical and control devices furnished by the manufacturer but not specified to be factory mounted. All electrical work shall comply with Division 26 Sections.

D. Piping: Comply with requirements in Section 23 23 00, REFRIGERANT PIPING.

3.2 Startup and testing:

A. Perform startup checks according to manufacturer’s written instructions.

C. Test controls and demonstrate its compliance with project requirements. Replace damaged or malfunctioning controls and equipment and retest the equipment to the satisfaction of the COR.

D. Furnish test reports to the COR in accordance with specification Section 01 00 00, GENERAL

REQUIREMENTS.

3.3 Instructions

Provide services of manufacturer’s technical representative for four hours to instruct NPS personnel in operation and maintenance of heat pumps.

3.4 demonstration and training

A. Provide services of manufacturer’s technical representative for four hours to instruct NPS personnel in operation and maintenance of units.

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MUWO 324995 WALL-MOUNTED UNITS 10.14.22

SECTION 23 81 45

Wall-Mounted Indoor Units

PART 1 - GENERAL

1.1 DESCRIPTION

A. This Section specifies electrically operated wall-mounted indoor units for heat pumps.

1.4 SUBMITTALS

A. Submit in accordance with specification Section 01 33 23, SHOP DRAWINGS, PRODUCT

DATA.

B. Manufacturer’s Literature and Data.

1. Wall mounted indoor unit:

b. multiple zones with same equipment

C. Certification: Submit, simultaneously with shop drawings, a proof of certification that this product has been certified by AHRI.

D. Performance Rating: Submit catalog selection data showing equipment ratings and compliance with required heating capacities EER and COP values as applicable. Also show sound pressure levels in dBA.

PART 2- PRODUCTS

2.1 UNITARY HEAT PUMPS, AIR TO AIR

Basis of Design- Mitsubishi MSZ-FS06NA. Must meet salient characteristics or equal:

A.

1. Wall mounted units must have a minimum heating capacity of 8,700 BTU/H.

2. Units shall be equipped with hot-start technology to prevent cold rushes with startup.

3. Each unit shall have wired remote control.

4. Units shall have cooling feature disabled. Condensate piping is not required if cooling feature is disabled.

B. Operating Controls

1. Provide unit with low voltage electric controls. This may be accomplished with remote.

2. Low voltage, adjustable room thermostat to control heating in sequence with delay between stages, compressor and supply fan to maintain temperature setting.

MUWO 324995 WALL-MOUNTED UNITS 10.14.22

Part 3- Execution

3.1 Installation

A. Install wall-mounted units according to manufacturers printed instructions. Install isolation pads.

B. Install electrical and control devices furnished by the manufacturer but not specified to be factory mounted. All electrical work shall comply with Division 26 Sections.

C. Piping: Comply with project requirements. Meet with COR prior to piping to confirm pipe runs.

D. Disable cooling function. Do not run condensate drain lines if cooling function has been disabled.

E. Coordinate above-ceiling piping with the COR to minimalize disturbance of existing historical walls.

3.2 Startup and testing:

A. Perform startup checks according to manufacturer’s written instructions.

C. Test controls and demonstrate its compliance with project requirements. Replace damaged or malfunctioning controls and equipment and retest the equipment to the satisfaction of the COR.

D. Furnish test reports to the COR.

3.3 Instructions

Provide services of manufacturer’s technical representative for four hours to instruct NPS personnel in operation and maintenance of heat pumps.

3.4 Demonstration and Training

A. Provide services of manufacturer’s technical representative for four hours to instruct NPS personnel in operation and maintenance of units.

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MUWO 324995 RACEWAYS AND BOXES FOR ELECTRICAL SYSTEMS 10.14.22

SECTION 26 05 33

RACEWAY & BOXES FOR ELECTRICAL SYSTEMS

PART 1 - GENERAL

1.1 RELATED DOCUMENTS

A. Drawings and general provisions of the Contract, including General and Supplementary

Conditions and Division 01 Specification Sections, apply to this Section.

1.2 SUMMARY

A. This Section includes raceways, fittings, boxes, enclosures, and cabinets for electrical wiring.

1.3 DEFINITIONS

A. EMT: Electrical metallic tubing.

B. ENT: Electrical nonmetallic tubing.

C. FMC: Flexible metal conduit.

D. MC: Metal Clad Cable

E. IMC: Intermediate metal conduit.

1.4 SUBMITTALS

A. Product Data: For surface raceways, wireways and fittings, hinged-cover enclosures, and cabinets.

1.5 QUALITY ASSURANCE

A. Electrical Components, Devices, and Accessories: Listed and labeled as defined in NFPA

70, Article 100, by a testing agency acceptable to authorities having jurisdiction, and marked for intended use.

B. Comply with NFPA 70.

PART 2 - PRODUCTS

2.1 METAL CONDUIT AND TUBING

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

1. AFC Cable Systems, Inc.

2. Alflex Inc.

3. Allied Tube & Conduit; a Tyco International Ltd. Co.

4. Anamet Electrical, Inc.; Anaconda Metal Hose.

5. Electri-Flex Co.

6. Manhattan/CDT/Cole-Flex.

7. Maverick Tube Corporation.

8. O-Z Gedney; a unit of General Signal.

9. Wheatland Tube Company.

B. EMT: ANSI C80.3.

C. Fittings for Conduit (Including all Types), EMT, and Cable: NEMA FB 1; listed for type and size raceway with which used, and for application and environment in which installed.

1. Fittings for EMT: Steel, set-screw, or compression type.

2.3 SURFACE RACEWAYS

A. Surface Metal Raceways: Stainless steel with snap-on covers. Manufacturer's standard enamel finish in color selected by Architect.

1. Available Manufacturers: Subject to compliance with requirements, manufacturers offering products that may be incorporated into the Work include, but are not limited to, the following:

a.Thomas & Betts Corporation.

b.Walker Systems, Inc.; Wiremold Company (The).

c.Wiremold Company (The); Electrical Sales Division.

2.4 BOXES, ENCLOSURES, AND CABINETS

A. Available Manufacturers: Subject to compliance with requirements, manufacturers offering products that may be incorporated into the Work include, but are not limited to, the following:

1. Cooper Crouse-Hinds; Div. of Cooper Industries, Inc.

2. Erickson Electrical Equipment Company.

3. Hoffman.

4. Hubbell Incorporated; Killark Electric Manufacturing Co. Division.

5. O-Z/Gedney; a unit of General Signal.

6. RACO; a Hubbell Company.

7. Robroy Industries, Inc.; Enclosure Division.

8. Scott Fetzer Co.; Adalet Division.

9. Spring City Electrical Manufacturing Company.

10. Thomas & Betts Corporation.

11. Walker Systems, Inc.; Wiremold Company (The).

12. Woodhead, Daniel Company; Woodhead Industries, Inc. Subsidiary. B. Sheet Metal

Outlet and Device Boxes: NEMA OS 1.

C. Cast-Metal Outlet and Device Boxes: NEMA FB 1, aluminum, Type FD, with gasketed cover.

PART 3 - EXECUTION

3.1 RACEWAY APPLICATION

A. Outdoors: Apply raceway products as specified below, unless otherwise indicated:

1. Exposed Conduit: Rigid stainless-steel conduit, IMC, RNC.

2. Concealed Conduit, Aboveground: Rigid stainless-steel conduit, IMC, EMT.

3. Underground Conduit: Sch 80 -PVC, direct buried.

4. Boxes and Enclosures, Aboveground: NEMA 250, Type 3R, 4.

B. Comply with the following indoor applications, unless otherwise indicated:

1. Exposed, Not Subject to Physical Damage: EMT.

2. Exposed and Subject to Severe Physical Damage: Rigid steel conduit, IMC.

3. Damp or Wet Locations: Rigid steel conduit, IMC. C. Minimum Raceway Size: 3/4-inch (16-mm) trade size.

D. Raceway Fittings: Compatible with raceways and suitable for use and location.

1. Rigid and Intermediate Steel Conduit: Use threaded rigid steel conduit fittings, unless otherwise indicated.

E. Install nonferrous conduit or tubing for circuits operating above 60 Hz. Where aluminum raceways are installed for such circuits and pass through concrete, install in nonmetallic sleeve.

F. Interior; Protected from damage: MC Cable

3.2 INSTALLATION

A. Comply with NECA 1 for installation requirements applicable to products specified in Part 2 except where requirements on Drawings or in this Article are stricter. B. Complete raceway installation before starting conductor installation.

C. Support raceways as specified in Division 26 Section "Hangers & Supports for Electrical

Systems."

D. Install no more than the equivalent of three 90-degree bends in any conduit run except for communications conduits, for which fewer bends are allowed.

E. Conceal conduit and EMT within finished walls, ceilings, and floors, unless otherwise indicated.

F. Threaded Conduit Joints, Exposed to Wet, Damp, Corrosive, or Outdoor Conditions:

Apply listed compound to threads of raceway and fittings before making up joints. Follow compound manufacturer's written instructions.

G. Raceway Terminations at Locations Subject to Moisture or Vibration: Use insulating bushings to protect conductors, including conductors smaller than No. 4 AWG.

H. Install pull wires in empty raceways. Use polypropylene or monofilament plastic line with not less than 200-lb (90-kg) tensile strength. Leave at least 12 inches (300 mm) of slack at each end of pull wire.

I. Raceways for Optical Fiber and Communications Cable: Install raceways, metallic and nonmetallic, rigid and flexible, as follows:

1. 3/4-Inch (19-mm) Trade Size and Smaller: Install raceways in maximum lengths of 50 feet (15 m).

2. 1-Inch (25-mm) Trade Size and Larger: Install raceways in maximum lengths of

75 feet (23 m).

3. Install with a maximum of two 90-degree bends or equivalent for each length of raceway unless Drawings show stricter requirements. Separate lengths with pull or junction boxes or terminations at distribution frames or cabinets where necessary to comply with these requirements.

J. Flexible Conduit Connections: Use maximum of 72 inches (1830 mm) of flexible conduit for recessed and semi-recessed lighting fixtures, equipment subject to vibration, noise transmission, or movement; and for transformers and motors.

1. Use LFMC in damp or wet locations subject to severe physical damage.

2. Use LFMC in damp or wet locations not subject to severe physical damage.

3.3 PROTECTION

A. Provide final protection and maintain conditions that ensure coatings, finishes, and cabinets are without damage or deterioration at time of Substantial Completion.

1. Repair damage to galvanized finishes with zinc-rich paint recommended by manufacturer.

2. Repair damage to PVC or paint finishes with matching touchup coating recommended by manufacturer.

END OF SECTION

26 24 16 Panelboards 10.14.22

SECTION 26 24 16

PANELBOARDS

PART 1 - GENERAL

1.1 RELATED DOCUMENTS

A. general provisions of the Contract, including General and Supplementary Conditions and Division

01 Specification Sections, apply to this Section.

1.2 SUMMARY

A. Section Includes:

1. Distribution panelboards.

1.3 SUBMITTALS

A. Product Data: For each type of panelboard, switching and overcurrent protective device.

Include manufacturers' technical data on features, performance, electrical characteristics, ratings, and finishes.

B. Shop Drawings: For each panelboard and related equipment.

1. Include dimensioned plans, elevations, sections, and details. Show tabulations of installed devices, equipment features, and ratings.

2. Detail enclosure types and details for types other than NEMA 250, Type 1.

3. Detail bus configuration, current, and voltage ratings.

4. Short-circuit current rating of panelboards and overcurrent protective devices.

5. Include evidence of NRTL listing for series rating of installed devices.

6. Detail features, characteristics, ratings, and factory settings of individual overcurrent protective devices and auxiliary components.

C. Panelboard Schedules: For installation in panelboards. Submit final versions after load balancing.

1.4 QUALITY ASSURANCE

A. Source Limitations: Obtain panelboards, overcurrent protective devices, components, and accessories from single source from single manufacturer.

B. Product Selection for Restricted Space: Drawings indicate maximum dimensions for panelboards including clearances between panelboards and adjacent surfaces and other items.

Comply with indicated maximum dimensions.

C. Electrical Components, Devices, and Accessories: Listed and labeled as defined in NFPA

70, by a qualified testing agency, and marked for intended location and application.

D. Comply with NEMA PB 1.

E. Comply with NFPA 70.

1.5 DELIVERY, STORAGE, AND HANDLING

A. Remove loose packing and flammable materials from inside panelboards

B. Handle and prepare panelboards for installation according to NECA 407.

1.6 PROJECT CONDITIONS

A. Environmental Limitations:

1. Rate equipment for continuous operation under the following conditions unless otherwise indicated:

a. Ambient Temperature: Not exceeding twenty-three (23) deg F (minus five

(5) deg C) to plus one hundred-four (104) deg F (plus forty (40) deg C).

b. Altitude: Not exceeding five hundred 500 meters

B. Interruption of Existing Electric Service: Do not interrupt electric service to facilities occupied by the Government or others unless permitted under the following conditions:

1. Notify Construction Manager no fewer than seven (7) days in advance of proposed interruption of electric service.

2. Do not proceed with interruption of electric service without Construction

Manager's written permission.

3. Comply with NFPA 70E.

1.7 COORDINATION

A. Coordinate layout and installation of panelboards and components with other construction that penetrates walls or is supported by them, including electrical and other types of equipment, raceways, piping, encumbrances to workspace clearance requirements, and adjacent surfaces.

Maintain required workspace clearances and required clearances for equipment access doors and panels.

1.8 WARRANTY

A. Special Warranty: Manufacturer's standard form in which manufacturer agrees to repair or replace transient voltage suppression devices that fail in materials or workmanship within specified warranty period.

1. Warranty Period: Five (5) years from date of Substantial Completion.

1.9 EXTRA MATERIALS

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

1. Keys: Two (2) spares for each type of panelboard cabinet lock.

PART 2 - PRODUCTS

2.1 GENERAL REQUIREMENTS FOR PANELBOARDS

A. Enclosures: Surface-mounted cabinets. Match existing per building.

1. Rated for environmental conditions at installed location.

a. Interior location

b. Front: Secured to box with concealed trim clamps. For surface-mounted fronts, match box dimensions; for flush-mounted fronts, overlap box.

2. Hinged Front Cover: Entire front trim hinged to box and with standard door within hinged trim cover.

3. Skirt for Surface-Mounted Panelboards: Same gage and finish as panelboard front with flanges for attachment to panelboard, wall, and ceiling or floor.

4. Directory Card: Inside panelboard door, mounted in transparent card holder.

5. Incoming Mains Location: Top.

C. Phase, Neutral, and Ground Buses:

1. Material: Hard-drawn copper, ninety-eight (98) percent conductivity.

2. Equipment Ground Bus: Adequate for feeder and branch-circuit equipment grounding conductors; bonded to box.

3. Isolated Ground Bus: Adequate for branch-circuit isolated ground conductors;

insulated from box.

4. Extra-Capacity Neutral Bus: Neutral bus rated two hundred (200) percent of phase bus and UL listed as suitable for nonlinear loads.

5. Split Bus: Vertical buses divided into individual vertical sections.

D. Conductor Connectors: Suitable for use with conductor material and sizes.

1. Material: Hard-drawn copper, ninety-eight (98) percent conductivity.

2. Main and Neutral Lugs: Mechanical type.

3. Ground Lugs and Bus-Configured Terminators: Mechanical type.

E. Panelboard Short-Circuit Current Rating: Rated for series-connected system with integral or remote upstream overcurrent protective devices and labeled by an NRTL. Include size and type of allowable upstream and branch devices, listed and labeled for series-connected shortcircuit rating by an NRTL.

F. Panelboard Short-Circuit Current Rating: Fully rated to interrupt symmetrical short-circuit current available at terminals.

2.2 PANELBOARDS

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

1. Eaton or Contracting Officer approved equal.

B. Panelboards: NEMA PB 1, power and feeder distribution type.

C. Doors: Secured with vault-type latch with tumbler lock; keyed alike.

PART 3 - EXECUTION

3.1 EXAMINATION

A. Receive, inspect, handle, and store panelboards according to NECA 407.

B. Examine panelboards before installation. Reject panelboards that are damaged or rusted or have been subjected to water saturation.

C. Examine elements and surfaces to receive panelboards for compliance with installation tolerances and other conditions affecting performance of the Work.

D. Proceed with installation only after unsatisfactory conditions have been corrected.

3.2 INSTALLATION

A. Install panelboards and accessories according to NECA 407.

B. Comply with mounting and anchoring requirements specified in Division 26.

C. Mount panelboard cabinet plumb and rigid without distortion of box. Mount recessed panelboards with fronts uniformly flush with wall finish and mating with back box.

D. Install overcurrent protective devices and controllers not already factory installed.

1. Set field-adjustable, circuit-breaker trip ranges.

E. Install filler plates in unused spaces.

F. Arrange conductors in gutters into groups and bundle and wrap with wire ties.

G. Comply with NECA 1.

3.3 IDENTIFICATION

A. Identify field-installed conductors, interconnecting wiring, and components; provide warning signs complying with Division 26 Section 26 05 53 "Identification for Electrical

Systems."

B. Create a directory to indicate installed circuit loads; incorporate the Government's final room designations. Obtain approval before installing. Use a computer or typewriter to create directory; handwritten directories are not acceptable.

C. Panelboard Nameplates: Label each panelboard with a nameplate complying with requirements for identification specified in Division 26 Section 26 05 53 "Identification for

Electrical Systems."

D. Device Nameplates: Label each branch circuit device in distribution panelboards with a nameplate complying with requirements for identification specified in Division 26 Section 26

05 53 "Identification for Electrical Systems."

3.4 FIELD QUALITY CONTROL

A. Acceptance Testing Preparation:

1. Test insulation resistance for each panelboard bus, component, connecting supply, feeder, and control circuit.

2. Test continuity of each circuit.

3. Trace all circuits and properly identify on breaker schedule.

B. Panelboards will be considered defective if they do not pass tests and inspections.

END OF SECTION

324995 IDENTIFICATION OF ELECTRICAL SYSTEMS 10.14.22

SECTION 26 05 53

IDENTIFICATION FOR ELECTRICAL SYSTEMS

PART 1 - GENERAL

1.1 RELATED DOCUMENTS

A. Drawings and general provisions of the Contract, including General and Supplementary

Conditions and Division 01 Specification Sections, apply to this Section.

1.2 SUMMARY

A. Section Includes:

1. Identification for raceways.

2. Identification of power and control cables.

3. Equipment identification labels.

4. Miscellaneous identification products.

1.3 SUBMITTALS

A. Product Data: For each electrical identification product indicated.

1.4 QUALITY ASSURANCE

A. Comply with ANSI A13.1.

B. Comply with NFPA 70.

C. Comply with 29 CFR 1910.144 and 29 CFR 1910.145.

D. Comply with ANSI Z535.4 for safety signs and labels.

E. Adhesive-attached labeling materials, including label stocks, laminating adhesives, and inks used by label printers, shall comply with UL 969.

1.5 COORDINATION

A. Coordinate identification names, abbreviations, colors, and other features with requirements in other Sections requiring identification applications, Drawings, Shop Drawings, manufacturer's wiring diagrams, and the Operation and Maintenance Manual; and with those required by codes, standards, and 29 CFR 1910.145. Use consistent designations throughout

Project.

B. Coordinate installation of identifying devices with completion of covering and painting of surfaces where devices are to be applied.

PART 2 - PRODUCTS

2.1 EQUIPMENT IDENTIFICATION LABELS

A. Adhesive Film Label: Machine printed, in black, by thermal transfer or equivalent process.

Minimum letter height shall be 3/8 inch (10 mm).

B. Adhesive Film Label with Clear Protective Overlay: Machine printed, in black, by thermal transfer or equivalent process. Minimum letter height shall be 3/8 inch (10 mm). Overlay shall provide a weatherproof and UV-resistant seal for label.

C. Self-Adhesive, Engraved, Laminated Acrylic or Melamine Label: Adhesive backed, with white letters on a dark-gray background. Minimum letter height shall be 3/8 inch (10 mm).

D. Engraved, Laminated Acrylic or Melamine Label: Punched or drilled for screw mounting.

White letters on a dark-gray background. Minimum letter height shall be 3/8 inch (10 mm).

2.2 MISCELLANEOUS IDENTIFICATION PRODUCTS

A. Paint: Comply with requirements in Division 09 painting Sections for paint materials and application requirements. Select paint system applicable for surface material and location

(exterior or interior).

B. Fasteners for Labels and Signs: Self-tapping, stainless-steel screws or stainless-steel machine screws with nuts and flat and lock washers.

PART 3 - EXECUTION

3.1 INSTALLATION

A. Verify identity of each item before installing identification products.

B. Location: Install identification materials and devices at locations for most convenient viewing without interference with operation and maintenance of equipment.

C. Apply identification devices to surfaces that require finish after completing finish work.

D. Self-Adhesive Identification Products: Clean surfaces before application, using materials and methods recommended by manufacturer of identification device.

E. Attach signs and plastic labels that are not self-adhesive type with mechanical fasteners appropriate to the location and substrate.

3.2 IDENTIFICATION SCHEDULE

D. Equipment Identification Labels: On each unit of equipment, install unique designation label that is consistent with wiring diagrams, schedules, and the Operation and Maintenance Manual.

Apply labels to disconnect switches and protection equipment, central or master units, control panels, control stations, terminal cabinets, and racks of each system. Systems include power, lighting, control, communication, signal, monitoring, and alarm systems unless equipment is provided with its own identification.

1. Labeling Instructions:

a. Unless provided with self-adhesive means of attachment, fasten labels with appropriate mechanical fasteners that do not change the NEMA or NRTL rating of the enclosure.

1. Equipment to Be Labeled:

a.Panelboards: Typewritten directory of circuits in the location provided by panelboard manufacturer. Panelboard identification shall be self-adhesive, engraved, laminated acrylic or melamine label.

END OF SECTION