HomeMy WebLinkAboutFile Documents.401 Castle Creek Rd.0024.2019 (26).ACBKARCHITECT: Chamberlin Architects, P.C.
BY: Jonathan West S:\1740 - Pitkin County Ambulance Facility\6. CONSTRUCTION\PROPOSAL REQUESTS\PR#014.1740.doc
PROPOSAL
REQUEST
FIELD
OWNER
ARCHITECT
CONTRACTOR
PROJECT: Aspen Ambulance District Facility
OWNER: Pitkin County
123 Emma Road, Suite #106
Basalt, CO 81621
TO: FCI Constructors, Inc.
3070 I-70 Business Loop Building A
Grand Junction, CO 81504
PROPOSAL REQUEST NO: Fourteen (14)
DATE: October 30, 2018
ARCHITECT'S PROJECT NO: 1740
CONTRACT DATED: May 9, 2018
Please submit an itemized quotation for changes in the Contract Sum and/or Time incident to proposed modifications
to the Contract Documents described herein.
THIS IS NOT A CHANGE ORDER NOR A DIRECTION TO PROCEED WITH THE WORK DESCRIBED
HEREIN.
Project Manual , Volume II
Add specification section 263100, Photovoltaic Collectors – attached.
Attachments: 263100, Photovoltaic Collectors
263100 - PHOTOVOLTAIC COLLECTORS
PHOTOVOLTAIC COLLECTORS 263100 - 1
SECTION 263100 - PHOTOVOLTAIC POWER SYSTEM
PART 1 - GENERAL
1.1 SUMMARY
A. Design, provide, install, connect and test a 3-phase central inverter grid tie photovoltaic system
rated 30 KW as described in these specifications.
B. The system shall be design-build-install by a company specializing in the supply and
installation of commercial photovoltaic systems with a minimum of 5 years’ experience with
systems of this size.
C. Section Includes:
1. PV modules (laminates in mounting frames).
2. Inverters.
3. Mounting structures.
D. Provide all materials needed for the installation and proper functioning of this system whether
mentioned in this specification or not.
E. Coordinate the installation with Holy Cross Electric, the electric utility.
F. Pay for and coordinate all required plan reviews and installation inspections with the Pitkin
County building department.
G. Coordinate the installation with the existing power distribution system. 40 amp 3-pole circuit
breakers have been provided in panel ‘PV’ to interface this system with the AC power
distribution system.
H. It is suggested that 3-10 KW 3-phase inverters be used, but that decision is up to the system
designer.
1.2 DEFINITIONS
A. CEC: California Energy Commission.
B. ETFE: Ethylene tetrafluoroethylene.
C. FEP: Fluorinated ethylene propylene.
D. IP Code: Required ingress protection to comply with IEC 60529.
E. MPPT: Maximum power point tracking.
F. PTC: PVUSA Test Condition. Commonly regarded as a "real-world" measure of PV output. See
below for definition of "PVUSA."
263100 - PHOTOVOLTAIC COLLECTORS
PHOTOVOLTAIC COLLECTORS 263100 - 2
G. PV: Photovoltaic.
H. PVUSA: Photovoltaics for Utility Systems Applications.
I. STC: Standard Test Conditions defined in IEC 61215.
1.3 ACTION SUBMITTALS
A. Product Data: For each type of product.
1. Include construction details, material descriptions, dimensions of individual components
and profiles, and finishes for PV panels.
2. Include rated capacities, operating characteristics, electrical characteristics, and furnished
specialties and accessories.
B. Shop Drawings: For PV modules.
1. Include plans, elevations, sections, and mounting details.
2. Include details of equipment assemblies. Indicate dimensions, weights, loads, required
clearances, method of field assembly, components, and location and size of each field
connection.
3. Detail fabrication and assembly.
4. Include diagrams for power, signal, and control wiring.
1.4 INFORMATIONAL SUBMITTALS
A. Field quality-control reports.
B. Sample Warranty: For manufacturer's special materials and workmanship warranty and
minimum power output warranty.
1.5 CLOSEOUT SUBMITTALS
A. Operation and Maintenance Data: For PV modules to include in operation and maintenance
manuals.
1.6 WARRANTY
A. Manufacturer's Special Warranty: Manufacturer agrees to repair or replace components of PV
modules that fail in materials or workmanship within specified warranty period.
1. Manufacturer's materials and workmanship warranties include, but are not limited to, the
following:
a. Faulty operation of PV modules.
b. Degradation in module output greater than 20%.
2. Warranty Period: 10 years from date of Substantial Completion on failure.
263100 - PHOTOVOLTAIC COLLECTORS
PHOTOVOLTAIC COLLECTORS 263100 - 3
B. Manufacturer's Special Minimum Power Output Warranty: Manufacturer agrees to repair or
replace components of PV modules that fail to exhibit the minimum power output within
specified warranty period. Special warranty, applying to modules only, applies to materials
only, on a prorated basis, for period specified.
1. Manufacturer's minimum power output warranties include, but are not limited to, the
following warranty periods, from date of Substantial Completion:
a. Specified minimum power output to 80 percent or more, for a period of 25 years.
1.7 QUALITY ASSURANCE
A. The system supplier shall have been in the photovoltaic systems business exclusively for a
minimum of 5 years, and shall have provided 5 or more systems of a comparable size.
PART 2 - PRODUCTS
2.1 MANUFACTURED UNITS
A. PV Panel Manufacturers: Subject to compliance with requirements, available manufacturers
offering products that may be incorporated into the Work are limited to the following:
1. Kyocera
2. Panasonic
3. Clear Skies
4. Hyundai
5. Sanyo
6. Mitsubishi
7. Solar Frontier
8. Sharp
9. 5-day prior approved manufacturer
B. Inverter Manufacturers: Subject to compliance with requirements, available manufacturers
offering products that may be incorporated into the Work are limited to the following:
1. Sunny Boy
2. Solar Edge
3. 5-day prior approved manufacturer
2.2 PERFORMANCE REQUIREMENTS
A. 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.
2.3 PV SYSTEMS DESCRIPTION
A. Interactive PV System: Collectors connected in parallel to the electrical utility; and capable of
providing power for Project and supplying power to a distributed network.
263100 - PHOTOVOLTAIC COLLECTORS
PHOTOVOLTAIC COLLECTORS 263100 - 4
1. An array to generate a total nominal rated output of 30 KW.
2. System Components:
a. PV modules.
b. Array frame.
c. Utility-interactive inverter.
d. Overcurrent protection and disconnect devices.
e. Mounting structure.
f. Utility meter base.
2.4 MANUFACTURED PV UNITS
A. Cell Materials: Cadmium sulfide.
B. Cell Materials: Monocrystalline.
1. c-Si.
2. Gallium arsenide (GaAs).
C. Module Construction:
1. Nominal Size: 39 inches wide by 64 inches long.
2. Weight: 37 lb.
D. Insulating Substrate Film: Rigid, polyester.
E. Conducting Substrate Film: Rigid Fluoropolymer.
F. Encapsulant: Ethyl vinyl acetate.
G. Front Panel: Fully tempered glass.
H. Backing Material: Tempered glass.
I. Bypass Diode Protection: Internal.
J. Junction Box:
1. Size: 1.56 by 3.96 by 0.52 inch.
2. Fully potted, vandal resistant.
3. IP Code: IP65.
4. Flammability Test: UL 1703.
K. Output Cabling:
1. 0.158 inch.
2. Quick, multi-connect, polarized connectors.
3. Two-Conductor Harness: No traditional return wire is needed from the end of a row back
to the source combiner.
L. Series Fuse Rating: 15 amps.
263100 - PHOTOVOLTAIC COLLECTORS
PHOTOVOLTAIC COLLECTORS 263100 - 5
2.5 PV CAPACITIES AND CHARACTERISTICS
A. Minimum Electrical Characteristics:
1. Rated Open-Circuit Voltage: 38.7 V.
2. Maximum System Voltage: 600 V.
3. Maximum Power at Voltage (Vpm): 265 watts.
4. Rated Short-Circuit Current (Isc): 8.92 amps.
5. Rated Operation Current (Imp): 8.46.
6. Maximum Power at STC (Pmax): 265.
B. Additional Electrical Characteristics:
1. PTC Rating: 250 watts.
2. Series Fuse Rating: 15 amps.
3. Module Efficiency: 16.2 percent.
C. Normal Operating Temperature Characteristics (NOTC):
1. Temperature at Nominal Operating Cell Temperature: 44.9 +- 2 deg C.
2.6 PV MODULE FRAMING
A. PV laminates mounted in anodized extruded-aluminum frames.
1. Entire assembly UL listed for electrical and fire safety, Class A, according to UL 1703,
and complying with IEC 61215.
2. Frame strength exceeding requirements of certifying agencies in subparagraph above.
3. Finish: Anodized aluminum.
a. Alloy and temper recommended by framing manufacturer for strength, corrosion
resistance, and application of required finish.
b. Color: As indicated by manufacturer's designations.
2.7 PV ARRAY CONSTRUCTION
A. Framing:
1. Material: Extruded aluminum.
2. Maximum System Weight: Less than 4 lb/sq. ft.
3. Raceway Cover Plates: Galvanized steel.
B. Flat-Roof Mounting:
1. No roof penetrations.
2. Self-ballasting.
3. Wind-tunnel tested to 110-mph wind.
4. Service Life: 25 years.
5. Freestanding system.
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PHOTOVOLTAIC COLLECTORS 263100 - 6
2.8 INVERTER
A. Inverter Type: Central.
B. Control Type: Pulse-width-modulation control.
C. Control Type: Maximum power point tracker control.
D. Inverter Electrical Characteristics:
1. Maximum Recommended PV Input Power: 8750 W.
2. Maximum Open-Circuit Voltage: 600 Vdc.
3. PV Start Voltage: 300 V.
4. MPPT Voltage Range: 250 V – 480 V.
5. Maximum Input Current: 30 A.
6. Number of String Inputs: 1.
7. Nominal Output Voltage: 240 Vac
8. Maximum Output Current: 29 A.
9. Peak Efficiency: 96.9 percent.
10. CEC Weighted Efficiency: 96.0 percent.
11. DC/AC Terminal Range (AWG): #10-#6.
12. Communications Interface: RS 485.
13. Utility Interface: Utility-interactive inverter.
14. Total harmonic distortion: 5% or less.
15. Power Factor: 95% or better.
E. Operating Conditions:
1. Operating Ambient Temperatures: Minus 4 to plus 122 deg F.
2. Storage Temperature: Minus 40 to plus 122 deg F.
3. Relative Humidity: Zero to 95 percent, noncondensing.
F. Enclosure:
1. NEMA 250, Type 3R.
2. Enclosure Material: Galvanized steel.
3. Cooling Methods:
a. Fan convection cooling.
b. Passive cooling.
4. Protective Functions:
a. AC over/undervoltage.
b. AC over/underfrequency.
c. Ground overcurrent.
d. Overtemperature.
e. AC and dc overcurrent.
f. DC overvoltage.
5. Standard LCD, four lines, 20 characters, with user display and on/off toggle switch.
263100 - PHOTOVOLTAIC COLLECTORS
PHOTOVOLTAIC COLLECTORS 263100 - 7
G. Disconnects: Rated for system voltage and conductor.
H. Regulatory Approvals:
1. IEEE 1547.1.
2. IEEE 1547.3.
3. UL 1741.
I. Characteristics:
1. Inverter Dimensions: 18.5” W X 24” H X 9” D.
2. Inverter Weight: 141#.
2.9 INVERTER OVERCURRENT PROTECTION
A. Circuit Breakers: 40.
2.10 MOUNTING STRUCTURES
A. Roof Mount: Extruded aluminum, two rails, tilt legs, and roof standoffs.
PART 3 - EXECUTION
3.1 EXAMINATION
A. Examine substrate areas and conditions, with Installer present, for compliance with
requirements for installation tolerances and other conditions affecting performance of the Work.
B. Do not begin installation until mounting surfaces have been properly prepared.
C. If preparation of mounting surfaces is the responsibility of another installer, notify Architect of
unsatisfactory preparation before proceeding.
D. Examine modules and array frame before installation. Reject modules and arrays that are wet,
moisture damaged, or mold damaged.
E. Examine roofs, supports, and supporting structures for suitable conditions where PV system will
be installed.
F. Proceed with installation only after unsatisfactory conditions have been corrected.
G. Coordinate the location of inverters and other electrical equipment with FCI.
3.2 INSTALLATION
A. Install collectors on roof with a due south bearing at 56 degrees inclination from horizontal.
The system supplier to confirm that this angle maximizes yearly KWH output.
263100 - PHOTOVOLTAIC COLLECTORS
PHOTOVOLTAIC COLLECTORS 263100 - 8
B. Comply with NECA 1.
C. Coordinate layout and installation of PV panels with roof support assembly and other
construction.
D. Support PV panel assemblies independent of supports for other elements such as roof and
support assemblies, enclosures, vents, pipes, and conduits. Support assembly to prevent twisting
from eccentric loading.
E. Install PV inverters, in locations allowed by code.
F. Install weather seal fittings and flanges where PV panel assemblies penetrate exterior elements
such as walls or roofs. Seal around openings to make weathertight.
G. Wiring Method: Install cables in raceways.
H. Wiring within Enclosures: Bundle, lace, and train conductors to terminal points with no excess
and without exceeding manufacturer's limitations on bending radii. Install lacing bars and
distribution spools.
3.3 CONNECTIONS
A. Coordinate PV panel cabling to equipment enclosures to ensure proper connections.
B. Coordinate installation of utility-interactive meter with utility.
C. Tighten electrical connectors and terminals according to manufacturer's published torque-
tightening values. If manufacturer's torque values are not indicated, use those specified in
UL 486A-486B.
D. Make splices, terminations, and taps that are compatible with conductor material and that
possess equivalent or better mechanical strength and insulation ratings than unspliced
conductors.
END OF SECTION 263100