aptos solar technology DNA-1 High Efficiency Half Cell Module Installation Guide
- September 21, 2024
- aptos solar technology
Table of Contents
DNA-1 High Efficiency Half Cell Module
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Product Information
Specifications:
- Product: High Efficiency Half-Cell Module
- Rated Voltage: 1500VDC
- Temperature Range: -40°C to +90°C
- Power Gain: Up to 20% more power than STC rating
- Grounding Method: Follow NEC article 250 guidelines
Product Usage Instructions:
Handling and Installation:
-
Only authorized, qualified, and trained installers should
handle the solar panels. -
Avoid touching live terminals with bare hands.
-
Work in dry weather with dry panels and tools.
-
Do not make connections or disconnect under load.
-
Use insulated tools for electrical connections.
-
Carry panels with two or more persons without touching wires or
junction box. -
Wear non-slip gloves and protective clothing.
-
Avoid stepping or standing on the solar panel.
Installation Guidelines:
-
Avoid installing panels where flammable vapors or gases are
present. -
Do not install in a corrosive environment.
-
Avoid directing concentrated sunlight on the panel.
-
Ensure a minimum tilt angle of 5 degrees for drainage.
-
Mount the junction box edge at the top in portrait
orientation. -
Use approved support structures and materials designed for a
25-year lifespan.
Wiring and Connections:
-
AST DNA panels come pre-wired with MC4 compatible
connectors. -
Use compatible connectors complying with Code requirements for
connections. -
Wire panels in series or parallel to obtain desired voltages
and current within system ratings. -
Consider the additional power gain when sizing the system and
selecting components. -
Employ overcurrent protection devices with a 2A current rating
for series or parallel connections.
Grounding:
Follow NEC article 250 guidelines for grounding method. Use the
specified components and install as shown in the provided
diagram.
Frequently Asked Questions (FAQ):
Q: Can I install the solar panel by myself?
A: It is recommended that only authorized, qualified, and
trained installers handle the installation of the solar panels to
ensure safety and proper setup.
Q: What should I do if I encounter a corrosive environment
during installation?
A: Avoid installing the panel in a corrosive environment. If you
encounter such conditions, consult with a professional installer
for guidance on suitable precautions or alternative locations.
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Installation Manual
High Efficiency Half-Cell Module
Introduction This manual contains information about electrical and mechanical
installation of the solar panels:DNA-1 and DNA-1 and DNA-144 Series Disclaimer
of Liability Installation techniques and methods of this product is beyond
Aptos Solar Technology’s control. AST does not assume responsibility of loss
or damage resulting from improper installation, handling or use. AST disclaims
liability for damage, loss, expense arising out of, or in any way connected
with installation, use or maintenance by using this manual. Regulation
Information This certified product meets the UL61730 standard for maximum
system voltage of 1 00V with maximum overcurrent protection rating of 2 A. The
installer or system integrator is assumed the responsibility to
ensurecompliance with all local electrical codes which may be applicable.
Warnings & Safety Solar panels generate electricity when exposed to light,
which can cause lethal shock and burn hazards.
Only authorized, qualified and trained installers should handle these solar
panels. Do not touch live terminals with bare hands. Work only in dry weather
with dry solar panels and tools.
Do not make connections while under load. Do not disconnect under load. Use
insulated tools for electrical connections. Do not step or stand on the solar
panel. Do not disassemble the solar panel or junction box.
Carry panel with two or more person. Do not carry by its wires or junction
box. Wear non-slip, suitable gloves and protective clothing.
Do not install the solar panel where flammable vapors or gases are present. Do
not install in corrosive environment.
Do not direct artificially concentrated sunlight on solar panel.
Under normal conditions, a photovoltaic module is likely to experience
conditions that produce higher current and/or voltage than reported at
standard test conditions. Accordingly, the values of Isc and Voc marked on
this PV module should be multiplied by a factor of 1.25 when determining
component voltage ratings, conductor current ratings, and size of controls
(e.g., inverter) connected to the PV output.
The module is considered to be in compliance with this standard only when the
module is either mounted in the manner specified by the mounting instructions,
or when the mounting means has been evaluated with this PV module to UL 2703.
A module with exposed conductive parts is considered to be in compliance with
this standard only when it is either electrically grounded in accordance with
the manufacturer’s instructions and the requirements of the National
Electrical Code, ANSI/NFPA 70 (2014-2017), or when the bonding means has been
evaluated with this PV module to UL 2703. Fire Rating If mounted over a roof,
the solar panel shall be mounted over a fire-resistant roof covering rated for
the application. Refer to local authority for guidelines and regulations for
building fire protection and required slope. The module fire performance
rating is Type I. Installing the Panel Aptos Solar Technology panels may be
installed in various applications. The particular mounting is to be defined by
the system designer. Installer must handle and mount the modules to prevent
any impact on front surface, back surface, and frames as this could result in
damage.
Support structures used to support AST DNA panels should be wind rated and
approved for use by the appropriate codes prior to installation. In addition,
they must be designed from materials that retain structural integrity over the
25 years lifespan of the panels they support.
AST DNA panels may be installed in portraits or landscape orientation.
A minimum of tilt angle of 5 degrees is required to ensure drainage and enable
rainwater.
The junction box edge should be at the top when mounted in portrait
orientation.
Specific rails and frame clips approved by AST are listed in Table 1.
Alternative rails and frame clips/fasteners need to be approved by AST to
ensure compliance to UL61730 safety standard.
De-rating factors must be applied if installed above 2000m.
Installation Manual
High Efficiency Half-Cell Module
Frame Cross Section
Module Wiring AST DNA panels are pre-wired and terminated with MC4 compatible
connectors.
Connections to other panels should use compatible connectors that comply with
Code requirements. AST recommends that all wiring be double insulated with a
minimum rating of 90 C, and wiring should use flexible copper conductors where
minimum size should be determined by the applicable codes.
The cables and connectors are UV and weather resistant from -40 C to +90 C and
rated for 1500VDC.
Panels may be wired in series or parallel to obtain desired voltages and
current but must not exceed the system rating for voltage and current.
AST panels may produce up to 20% more power than STC rating, depending on
system design and albedo.
The additional power gain should be taken into consideration when determining
optimum system sizing, string length, and selecting system components and
wiring.
Overcurrent protection devices should be employed.
2 A current rating for series or parallel. Please comply with all code and
design requirements.
Grounding NEC, article 250 governs grounding method. Grounding method must
follow local electric codes. Use bolt, M4, cup washer, grounding wires, flat
washer, tooth washer, screw nut, M4 and install as shown in the diagram below.
Torque specification is 2 to 3 Nm. Grounding materials is evaluated under
UL1703.
Specifications The electrical characteristics are within ± 10 % of the
indicated values of Isc, Imp, Vmp, and Voc and ± 3 % of the indicated value
Pmax under standard testing conditions (irradiance of 1000/m2, AM 1.5
spectrum, and a cell temperature of 25 C)
Under normal conditions, solar panels are likely to experience conditions that
produce more current and/or voltage than stated at standard test conditions.
Accordingly, the values of Isc and Voc, inclusive of bifacial gain, should be
multiplied by a factor of 1.25, or more, when determining component voltage
ratings, and size of controls connected to the PV output. (Refer to code and
design requirements).
AST DNA panels have a maximum system voltage of 1 0 VDC. Some grid-tied
systems operate or near this voltage rating. The Voc increases as the ambient
temperature decreases.
Maximum system voltage is computed as the sum of the open-circuit voltage of
the series-connected panels for the lowest expected ambient temperature.
Temperature coefficients can be used to provide the most accurate prediction
of the panel voltage under temperature extremes.
Installation Manual
High Efficiency Half-Cell Module
Maintenance ASTDNA panels are designed to require little to no maintenance.
Depending on local conditions, panels may need periodic cleaning to remove
dirt build-up and soiling. Panels should be washed with water to remove dirt
and soiling. Frequency of cleaning will depend on local weather conditions and
panel tilt. Once a year, have qualified service professional check the general
condition of wiring and check to be sure that mounting hardware is at the
correct torque. Loose connections may result in damaged panels.
Panels generate electricity when there is sunlight, and cleaning/maintenance
personnel must take proper precautions.
Mechanical Drawings Installers must use pre-drilled mounting holes on the
frame.
Frame clip must have minimum height dimension as shown.
End Frame Clip
Mounting Methods Mounting holes are 14mm by 9mm. M8 bolt and fasteners. Torque
value is 12.5 Nm 18 Nm. Rails can run perpendicular or parallel to panel
length. (See figure 1)
Fasteners
General Information Slope should be less than 5 in/ft (127 mm/305mm) required
to maintain a fire class rating. Any roof penetration required to mount the
module must be properly sealed to prevent leaks. The modules are rated fire
class C and are suitable for mounting over class A roof.
Pole Mount When installing a module on a pole, choose a pole and module
mounting structure that will withstand anticipated winds for the area.
Modules Installed with Mounting Holes Modules should be bolted with M8 and M6
to the support structures through mounting holes located in the frame in the
back flanges. See table in the following page. Torque should be 12.5-18 Nm for
tightening the M8 bolt, the torque should be 9-15 Nm for tightening the M6
bolt.
Modules Installed with Clamping Modules should be bolted to the support
structures rail by metal clamps. It is recommended to use clamp under the
following conditions or approved by system installation. Clamping distance is
quarter of the module length. See table in the following page.
Clamp materials: Aluminum, Bolt torque: 12.5 18 NM, clamp must not contact
the front glass, bolt: M8 SS, flat washer: diameter 16-8.4 mm H1.6 ss, spring
washer: diameter 12.6-8.4 mm H4.7 ss.
Installation Manual
High EfficiencyHalf-Cell Module
Mounting System
High level loading condition (Apply to harsher environment conditions, such as
storm. Test Load is 5400Pa[Snow Load], 4000Pa [Wind Load] safety factor is
1.5)
Primary Mounting Slots
Secondary Mounting Slots
Permissible range of clamp: S = 440mm (Secondary mounting holes for additional support in harsh environments)
S
S
S
S
Installation Manual
High Efficiency Half-Cell Module
DNA-144-BF10-540W,545W and 550W-DG
Electrical Specifications
DNA-144BF10-540W-DG
DNA-144BF10-545W-DG
STC Rated Output Pmpp (W) Module Efficiency
540W 20.90%
545W 21.09%
Open Circuit Voltage VVOC (V) Short Circuit Current ISC (A)
49.50 13.85
49.65 13.92
Rated Voltage Vmp (V)
41.65
41.80
Rated Voltage Imp (A)
12.97
13.04
Standard Test Conditions for front-face of panel: 1000 W/m2, 25°C, measurement uncertainty <3%
Bifacial Output-Rearside Power Gain
5%-Maximum Power (Pmax) 5%-Module Efficiency STC(%) 15%-Maximum Power (Pmax) 15%-Module Efficiency STC(%) 25%-Maximum Power (Pmax) 25%-Module Efficiency STC(%)
567W 21.94% 621W 24.03% 675W 26.12%
572W 22.14% 627W 24.27% 682W 26.40%
DNA-144BF10-550W-DG
550W 21.29% 49.80 13.99 41.95
13.11
578W 22.35% 633W 24.50% 688W 26.63%
Test Operating Conditions
Maximum Series Fuse Maximum System Voltage Maximum Load Capacity (Per UL 1703)
Fire Performance Class
30A 1,500 VDC (UL&IEC) 5400 PA Snow Load / 4000 Pa Wind Load
Class C/Type 29
Installation Manual
High EfficiencyHalf-Cell Module
15.17in, 400mm 55.11in, 1400mm
Installation Manual
High Efficiency Half-Cell Module
Junction Box Information Overcurrent protection type: none # of bypass diodes:
3 Diameter of cables: every module has 2 cables whose diameter is 4mm2 for any
one of them, and it can endure 90oC insulation and can be exposed under sun
light. Ways of connecting Every module with 2 connectors that are positive
electrode and negative electrode. When modules are installed in series, the
first positive connector should connect with the negative connector of the
next module. The modules are equipped with PV wiring connectors that comply
with the Standard for Connectors for use in photovoltaic systems, UL 61730,
the specific allowable mating connector manufacturer and model number are
listed as below.
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