Section_J_-_Att_No__001_Replace_Electrical_and_Water_Heaters_in_Park_Housing_Specifications.pdf

GOLDEN GATE NATIONAL RECREATION AREA

SAUSALITO AND SAN FRANCISCO,

CALIFORNIA

Replace Electrical and Water Heaters in Park Housing

CONSTRUCTION DOCUMENTS

SPECIFICATIONS

National Park Service

Pacific West Region

April 15, 2025

GOGA 01 27 00 - 1

4.8.2025 DEFINITION OF CONTRACT LINE ITEMS

SECTION 01 27 00 � DEFINITION OF CONTRACT LINE ITEMS

PART 1 - GENERAL

1.1 SUMMARY

A. The intent of this section is to explain, in general, what is and what is not included in a contract line item, and the limits or cut-off points where one item ends and another begins.

B. If no contract line item exists for a portion of the work, include the costs in a related item.

PART 2 - PRODUCTS (Not Used)

PART 3 - EXECUTION

3.1 LIST OF CONTRACT LINE ITEMS

A. Contract Line Item No. 001 Install Government-Furnished Water Heaters in Capehart

Housing

1. This item consists of labor necessary for the installation of eight heat pump hybrid water heaters in the Capehart neighborhood.

2. Water heaters, pans, and expansion tanks are Government-Furnished. This item consists of all other necessary materials for disconnect and removal of existing and installation of new.

3. Payment will be made at the contract lump sum price.

B. Contract Line Item No. 002 Install Water Heaters at Dorms 1058 and 35S

1. This item consists of labor and material necessary for the installation of three heat pump hybrid water heaters in parallel at Dorm 1058. Includes disconnection of existing and electrical necessary for new.

2 This item consists of labor and material necessary for the installation of three heat pump hybrid water heaters in parallel at Dorm 35S. Includes disconnection of existing and electrical necessary for new.

2. Payment will be made at the contract lump sum price.

C. Contract Line Item No. 003 Electrical Service Changeout at Building 937

1. This item consists of labor and material necessary for electrical service changeout at

Building 937.

2. Includes all application and construction fees and coordination with PG&E.

3. Payment will be made at the contract lump sum price.

D. Option Line Item No. 001 Install Water Heaters at 937A and 937B

1. This item consists of labor and material necessary for the installation of three heat pump hybrid water heaters in parallel at Dorms 937A and 937B. Includes disconnection of existing and electrical necessary for new.

2. Payment will be made at the contract lump sum price.

GOGA 01 27 00 - 2

4.8.2025 DEFINITION OF CONTRACT LINE ITEMS

E. Option Line Item No. 002 Install Washing Machine Plumbing and Electrical at Building 1057

1. This item consists of labor and material necessary for the installation of plumbing and electrical for a washing machine.

2. Payment will be made at the contract lump sum price

END OF SECTION 01 27 00

United States Department of the Interior

NATIONAL PARK SERVICE

Golden Gate National Recreation Area

Fort Mason Bldg. 201

San Francisco, CA 94123

April 15, 20254

Replace Electrical and Water Heaters in Park Housing

Statement of Work

1. Water Heaters at Capehart

a. Remove existing tank water heaters.

b. Cap gas line and exhaust vent.

c. Install water heaters. Includes all valves, unions, drains, and straps. All pipe to be copper except where other is required per manufacturer installation instructions.

d. Install drains to plumbing drain or to exterior.

e. Install all electrical required for new water heaters. Includes all conduit, wires, and breakers.

f. Government will furnish eight heat pump hybrid water heaters, pans, and expansion tanks.

g. Total water heaters-eight heaters. Each heater will be at a different address in the Capehart neighborhood.

2. Water Heaters at Dorm 1058

a. Remove two existing tank water heaters.

b. Cap gas line and exhaust vent.

c. Install three heat pump hybrid water heaters in parallel. Includes all valves, unions, drains, expansion tanks, pans, and straps. All pipe to be copper except where other is required per manufacturer installation instructions.

d. Water heaters will be 80 gallons and will be furnished by the contractor.

e. Install drains to plumbing drain or to exterior.

f. Install new interior surface-mounted load center. Panel will be fed from exterior disconnect and will feed new water heaters.

g. Install all electrical required for new water heaters. Includes all conduit, wires, and breakers.

h. All exterior conduit must be 316 stainless steel.

3. Electrical Service Change Out at Building 937

a. Remove existing electrical service and replace with dual 200-amp duplex meter service (400-amp service).

b. Replace existing load centers in 937A and 937B. Includes new breakers.

c. Replace conduit and feeder from new service to load centers.

d. Replace riser, mast head, and service drop. All conductors to be copper.

e. Paint all new exterior metal parts.

f. Coordinate disconnect/reconnect with PG&E. Contractor responsible for PG&E application and fees.

4. Install Water Heater at Dorm 35S

i. Remove existing tank water heater.

j. Cap gas line and exhaust vent.

k. Install one heat pump hybrid water heater. Includes all valves, unions, drains, expansion tanks, pans, and straps. All pipe to be copper. Water heater to be 80 gallons and will be furnished by the contractor.

l. Install drains to plumbing drain or to exterior.

m. Install all electrical required for new water heaters. Includes all conduit, wires, and breakers.

5. Install Water Heaters at Dorms 937A and 937B (Bid Option)

n. Remove existing tank water heaters (one at 937A and one at 937B).

o. Cap gas lines and exhaust vents.

p. Install one heat pump hybrid water heater per unit. Includes all valves, unions, drains, expansion tanks, pans, and straps. All pipe to be copper. Water heaters to be 80 gallons and will be furnished by the contractor.

q. Install drains to plumbing drain or to exterior.

r. Install all electrical required for new water heaters. Includes all conduit, wires, and breakers.

6. Install Plumbing and Electrical for Washing Machine at Building 1057 (Bid Option)

a. Remove cabinet to create space for new washing machine.

b. Install washing machine drain (drain box), water, and venting.

c. Install electrical for washing machine.

d. Patch and paint any drywall that was removed.

Schedule of Government Furnished Equipment (GFE)

All GFE is for CLIN 1

a) 8 65-gallon heat pump hybrid water heaters

b) 8 expansion tanks

c) 8 pans

General Painting and Coating Requirements

SECTION 09 90 00

GENERAL PAINTING & COATING REQUIREMENTS

PART 1 - GENERAL

1.1 GENERAL

A. General procedures and requirements for field-applied painting and coating.

1.2 REFERENCES

A. Master Painters Institute (MPI)

1. MPI(a), Mar 2001, �Architectural Painting Specification Manual�

1.3 SUBMITTALS

A. Product Data

1. Include following information for each painting system, arranged in same order as in Project

Manual.

a. Manufacturer's cut sheets for each component of system indicating ingredients and percentages by weight and by volume, environmental restrictions for application, and film thicknesses and spread rates.

1) If using a manufacturer based on MPI approval, also include copies of appropriate entries from MPI Approved Product List. Listing in MPI

Approved Product List is mandatory for Sections 09912, 0-9923 and 09924.

If proposed manufacturer has products listed for these three Sections, but not for other Sections, Contracting Officer may approve products submitted by proposed manufacturer for other Sections.

b. Manufacturer�s substrate preparation instructions and application instruction for each painting system used on Project.

c. Confirmation of colors selected and that each area to be painted or coated has color selected for it.

2. Provide two (2) copies of Product Data submission.

B. Samples - Provide two (2) twelve inch by twelve inch (12�x12�) minimum brush out cards for each paint or coating color to be selected by the Contracting Officer for approval.

1.4 QUALITY ASSURANCE

A. Regulatory Requirements - Paint and painting materials shall be free of lead and mercury, and have VOC levels acceptable to local jurisdiction.

B. Field Samples

1. Before application of any paint system, if required by Contracting Officer, meet on Project site with Contracting Officer, and Manufacturer's representative. Contracting Officer may select one surface for application of each paint system specified. This process will include establishing acceptable substrate conditions required for Project before application of paints and coatings.

2. Apply paint systems to surfaces indicated by Contracting Officer following procedures outlined in Contract Documents and Product Data submission specified above.

3. After approval of samples, proceed with application of paint system throughout Project.

Approved samples will serve as standard of acceptability.

1.5 DELIVERY, STORAGE, AND HANDLING

A. Deliver specified products in sealed, original containers with Manufacturer�s original labels intact on each container. Deliver amount of materials necessary to meet Project requirements in single shipment. Notify Contracting Officer two working days before delivery of paint. B. Store materials in single place.

C. Keep storage area clean and rectify any damage to area at completion of work of this Section.

Maintain storage area at fifty-five (55) degree F minimum.

1.6 PROJECT CONDITIONS

A. Project Environmental Conditions

1. Perform painting operations at temperature and humidity conditions recommended by

Manufacturer for each operation and for each product.

2. Apply painting systems at lighting level of 540 Lux (fifty (50) foot candles) minimum on surfaces to be painted. Inspection of painting work shall take place under same lighting conditions as application. If painting and coating work is applied under temporary lighting, deficiencies discovered upon installation of permanent lighting will be considered latent damage as defined in MPI Manual, PDCA P1-92

1.7 SCHEDULING

A. Coordinate with other trades for materials and systems that require painting prior to installation.

B. Schedule painting and coating work to begin when work upon which painting and coating work is dependent has been completed. Schedule installation of pre-finished and non-painted items, which are to be installed on painted surfaces, after application of final finishes.

C. Schedule pre-finishing prior to installation of any surfaces that will not be accessible after installation.

1.8 MAINTENANCE

A. Extra Materials - Provide painting materials in Manufacturer's original containers and with original labels in each color used. Provide one (1) gallon of each finish coat. Label each can with color name, mixture instructions, date, and anticipated shelf life.

PART 2 - PRODUCTS

2.1 MATERIALS

A. Materials used for any painting system shall be from single manufacturer unless approved otherwise in writing by painting system manufacturer. Include such approvals in Product Data submittal.

B. Linseed oil, shellac, turpentine, and other painting materials shall be pure, be compatible with other coating materials, bear identifying labels on containers, and be of highest quality of an approved manufacturer listed in MPI manuals. Tinting color shall be best grade of type recommended by Manufacturer of paint or stain used on Project.

PART 3 - EXECUTION

3.1 EXAMINATION

A. Instructions to applicator to begin painting and coating work will indicate that substrates to receive painting and coating materials have been previously inspected as part of work of other

Sections and are complete and ready for application of painting and coating systems.

B. Before beginning work of this Section, examine, and test surfaces to be painted or coated for adhesion of painting and coating systems. Report in writing to Contracting Officer of conditions that will adversely affect adhesion of painting and coating work. Do not apply painting and coating systems until such adverse conditions are corrected by party responsible for adverse condition.

C. Report defects in substrates that become apparent after application of primer or first finish coat to Contracting Officer in writing and do not proceed with further work on defective substrate until such defects are corrected by party responsible for defect.

3.2 PREPARATION

A. Protection

1. Remove rags and waste used in painting operations from building each night. Take every precaution to avoid danger of fire.

2. Protect other finish work and adjacent materials during painting. Do not splatter, drip, or paint surfaces not intended to be painted. These items will not be spelled out in detail but pay special attention to the following:

a. Do not paint finish copper, bronze, chromium plate, nickel, anodized aluminum, or monel metal except as explicitly specified.

B. Surface Preparation

1. Prepare surfaces in accordance with MPI requirements and requirements of

Manufacturer for each painting system specified, unless instructed differently in Contract

Documents. Bring conflicts to the attention of the Contracting Officer in writing.

2. Surfaces to be painted shall be clean and free of loose dirt. Clean and dust surfaces before painting or finishing.

3. Do not perform exterior painting while surface is damp, unless recommended by

Manufacturer, nor during rainy or frosty weather. Interior surfaces shall be dry before painting. Moisture content of materials to be painted shall be within tolerances acceptable to Paint Manufacturer.

4. Degrease per SSPC-SP1 to remove all oils, grease, and foreign matter.

5. Sand metal face to create surface profile.

3.3 APPLICATION

A. Paint or finish complete all surfaces to be painted or coated as described in Contract

Documents, including but not limited to following items.

1. Paint electrical items that require field painting as indicated in Contract Documents. These include but are not limited to:

a. Electrical meters. Also includes risers and conduit. This includes all new exterior metal services. There is not painting of the interior required.

B. Paint two coats of polyamide surface tolerant epoxy

1. 5-10 DFT per coat

C. Spread materials smoothly and evenly. Apply coats to not less than wet and dry film thicknesses and at spreading rates for specified products as recommended by Manufacturer.

Touch up suction spots after application of first finish coat.

D. Paint shall be thoroughly dry and surfaces clean before applying succeeding coats.

E. Use fine sandpaper between coats as necessary to produce even, smooth surfaces.

F. Make edges of paint adjoining other materials or colors clean, sharp, and without overlapping.

G. Finished work shall be a �Properly Painted Surface� as defined in this Section.

3.4 ADJUSTMENT

A. Correct deficiencies in workmanship required to leave surfaces in conformance with �Properly

Painted Surface� as defined in this Section. Correction of �Latent Damage� and �Damage

Caused by Others,� as defined in this Section, is not included in work of this Section.

3.5 CLEANING

A. As work proceeds and upon completion of work of any painting Section, remove paint spots from floors, walls, glass, or other surfaces and leave work clean, orderly, and in acceptable condition.

Remove debris caused by work of paint Sections from premises.

3.6 PAINT COLOR SCHEDULE

A. Number and placement of interior and exterior paint colors and gloss levels shall be Color Level

II from MPI Manual, PDCA P3-93 as modified in paragraph 1, following.

1. Paint to match existing buildings. Color is believed to be Presidio White, but field samples must be approved prior to painting.

END OF SECTION

PLUMBING EQUIPMENT 23 30 00

SECTION 22 30 00 - PLUMBING EQUIPMENT

PART 1 GENERAL

1.1 SUMMARY

A. This Section includes:

1. Water Heaters

2. Backflow Preventers

3. Domestic Water Expansion Tank

1.2 RELATED SECTIONS

A. Division 01, General Requirements

B. Division 22, Plumbing

C. Section 22 40 00, Plumbing Fixtures

1.3 QUALITY ASSURANCE

A. Regulatory Requirements: Water heaters to meet state energy code requirements.

1.4 SUBMITTALS

A. Submit the following:

1. Product data for each item specified.

2. Operating and Maintenance Data

PART 2 PRODUCTS

2.1 MANUFACTURERS

A. Heat Pump Hybird Water Heater:

1. State Industries, Rudd

2. Rheem

3. A.O. Smith

4. Bradford-White

5. Other Manufacturers: Submit substitution request.

B. Domestic Water Expansion Tank:

1. Amtrol, Bell & Gossett

2. Armstrong

3. Wheatley

4. Taco

5. Or equal.

2.2 WATER HEATERS

A. Electric Hybrid Heat Pump Water Heater:

1. Construct heater of heavy gauge steel, fluorocarbon polymer, epoxy, or glass lined, 150 psi working pressure (ASME rated for 80-gallon size and above).

2. One external adjusting thermostat for each element.

3. Immersion thermostats to switch magnetic contactors through a staged sequence control

(60 KW and larger).

4. Manual reset high limit thermostat, ASME rated temperature and pressure relief valve and drain valve.

5. Heater UL listed, prewired, and factory tested.

6. Water heaters to be Electric Hybrid Heat Pump type.

7. Three 80-gallon water heaters will be installed in parallel at Building 1058. One 80-gallon water heater will be installed at Building 937S. Bid options for a single 80-gallon water heater for 937A and 937B will be included.

8. Eight Government furnished 65-gallon electric hybrid heat pump water heaters will be installed in the Capehart neighborhood. Pans and expansion tanks will also be Government furnished for these eight water heaters.

2.4 DOMESTIC WATER EXPANSION TANK

A. Diaphragm type of welded steel, constructed and stamped in accordance with ASME code for

150 psi working pressure.

B. Heavy-duty butyl diaphragm meets FDA requirements for potable water supply.

C. Support with steel legs or bases for vertical installation or steel saddles for horizontal installation.

D. Pre-charged with compressed air to minimum fill pressures as indicated on the Drawings.

PART 3 EXECUTION

3.1 WATER HEATER INSTALLATION

A. Install per manufacturer�s installation instructions and in accordance with all applicable codes.

a Tanks to heat water to 140 degrees F. Mixing valves must be used to lower maximum water temperature to 120 degrees F at points-of-use.

B. Provide pressure/temperature relief valve on storage tanks. Provide piping from relief valve to floor drain or to exterior utilizing a 1-inch air gap at discharge point.

C. Provide condensation piping from condensate line to the floor drain or to exterior of building.

D. Support:

1. Install water heater oriented so that controls and devices needing service and maintenance have adequate access.

2. Install water heaters level.

3. Provide required strapping to structure and floor in accordance with code requirements.

D. Water Piping:

1. Provide hot and cold water piping to units with shutoff valves, unions, and specialties as detailed on the Drawings.

2. Provide recirculating water line to unit with shutoff valve, check valve, and union.

Panelboards and Meters

PANELBOARDS AND METERS

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.

2. Group Metering

1.3 SUBMITTALS

A. Product Data: For each type of panelboard, switching and overcurrent protective device, transient voltage suppression device, accessory, and component indicated. Include dimensions and 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.

7. Include wiring diagrams for power, signal, and control wiring.

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 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 CO and COR no fewer than seven (7) days in advance of proposed interruption of electric service.

2. Do not proceed with interruption of electric service without COR�s written permission.

3. Do not interrupt electric service for more than one work day. Temporary provisions are required if permanent power is not reconnected by the end of the work day.

4. 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 N/A

PART 2 - PRODUCTS

2.1 GENERAL REQUIREMENTS FOR PANELBOARDS, METER MAINS, LOAD CENTERS

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

1. Rated for environmental conditions at installed location.

a. Exterior Environment: NEMA 3R

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

c. Interior Environment: NEMA 1

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. Gutter Extension and Barrier: Same gage and finish as panelboard enclosure; integral with enclosure body. Arrange to isolate individual panel sections.

5. Integrated main breakers for each meter attached to meter enclosure and labeled accordingly.

6. Finishes:

a. Panels and Trim: Galvanized Steel. Exterior panels painted with two coats of

Polyamide Surface Tolerant Epoxy at 5-10 DFT/coat.

b. Back Boxes: Galvanized steel

c. Fungus Proofing: Permanent fungicidal treatment for overcurrent protective devices and other components.

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

8. B. Incoming Mains Location: Top and bottom.

a. Meter panels will be overhead but must have provisions for underground.

b. Service drops must be copper.

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. Future Devices: Mounting brackets, bus connections, filler plates, and necessary appurtenances required for future installation of devices.

F. 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.

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

2.2 APPLIANCE, DISTRIBUTION, AND BRANCH CIRCUIT PANELBOARDS

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

1. Eaton, Square D, GE, or Contracting Officer approved equal.

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

C. Doors: Secured with vault-type latch.

D. Mains: No main breaker required on the panel boards. Main breaker to be on exterior of the building.

E. Branch Overcurrent Protective Devices for Circuit-Breaker Frame Sizes Larger than 125 A: Bolt-on circuit breakers.

2.4 DISCONNECTING AND OVERCURRENT PROTECTIVE DEVICES

A. Basis-of-Design Product: Subject to compliance with requirements, provide product indicated on Drawings by the following:

1.To match the manufacture of the branch circuit panelboards.

B. Molded-Case Circuit Breaker (MCCB): Comply with UL 489, with series-connected rating to meet available fault currents.

1. GFCI Circuit Breakers: Single- and two-pole configurations with Class A ground-fault protection (6-mA trip).

2. Arc-Fault Circuit Interrupter (AFCI) Circuit Breakers: Comply with UL 1699; 120/240V, single-pole configuration.

2.5 GROUP MEETERING

2.5.1 Basis of Design: Eaton 1MP2204R, 200-amp vertical group meter main, 400-amp main copper buss, factory installed breakers. Surface mounted, overhead service.

1. Locations- Building 937 (Feeds 937A and 937B).

2. Execution- Each meter shall feed independent, addressed units.

3. All meters shall have means of disconnect per NEC 230.71.

2.8 DISTRBUTION PANELS

1. Basis of Design: Eaton Product CHP32L225X5. 225-amp 120/240V AC, 1 phase, plug on neutral, main lug load center, copper buss, 32-space/64-pole. NEMA 1-Indoors

2. Locations: Basement of 937A and 937B.

3. Execution- Panels shall be flush mounted in the same location as the existing interior panel..

4. Any sheetrock removed for access shall be cleanly cut with a utility knife. Drywall shall be patched and finished to a Level 4 finish.

5. All breakers shall be new and meet 2025 NEC standards for arc fault and GFI.

4. ACCESSORY COMPONENTS AND FEATURES

A. Accessory Set: Include tools and miscellaneous items required for overcurrent protective device test, inspection, maintenance, and operation.

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.

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

3.5 ADJUSTING

A. Load Balancing: After Substantial Completion, but not more than sixty (60) days after Final

Acceptance, measure load balancing and make circuit changes.

1. Measure as directed during period of normal system loading.

2. Perform load-balancing circuit changes outside normal occupancy/working schedule of the facility and at time directed.

3. After circuit changes, recheck loads during normal load period. Record all load readings before and after changes and submit test records.

4. Tolerance: Difference exceeding twenty (20) percent between phase loads, within a panelboard, is not acceptable. Rebalance and recheck as necessary to meet this minimum requirement.

Submittal List

Division One Contractor�s Schedule

Schedule of Values

Proof of Bonds and Insurance

SF 1413 (subcontractors)

Site Specific Safety Plan

Designation of PM and

Superintendent

Proof of California licenses

(plumbing and electrical)

Division Twenty-Two Heat pump hybrid water heaters

Division Twenty-Six Electrical panels/load centers

Electrical meter services

Conduit

Close Out Warranty Info

Waste/Recycling Records

Submittal List