InstallationManual
HighEfficiencyHalf-CellModule
Introduction
Thismanual containsinformationabout electrical and
mechanicalinstallation of the solar panels: DNA-120
and DNA-144 Series
Disclaimer of Liability
Installation techniques and methods of this product is
beyond Aptos Solar Technology’s control. AST doesnot
assumeresponsibility of lossor damage resulting from
improper installation, handling or use. AST disclaims liability
for damage, loss, expense arising out of, or in any way
connectedwith installation,useor maintenanceby usingthis
manual
Regulation Information
This certified product meets the UL1703 standard for
maximum system voltage of 1500V with maximum
overcurrent protection rating of 20A. The installer or system
integratoris assumedthe responsibility to ensurecompliance
with all localelectrical codeswhich maybe applicable.
Warnings & Safety
Solarpanels generateelectricity when exposedto light,
which can cause lethal shock and burnhazards.
Only authorized, qualified and trained installers should
handle these solar panels. Do not touch live terminals with
bare hands.Workonly in dry weatherwith 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 stepor standon thesolar panel.Do not
disassemblethe 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
gasesare present.Do not installin corrosiveenvironment.
Do not direct artificially concentratedsunlight on solar panel.
Fire Rating
If mounted over a roof, the solar panel shall be mounted
over afire resistant roof covering rated for the application.
Refer to local authority for guidelines and regulations for
building fire protectionand requiredslope. The module
fire performance rating is Type I.
Installing the Panel
Aptos Solar Technology panels may be installed invarious
applications. The particular mounting is to be defined by
the systemdesigner.Installermust handle and mountthe
modules to prevent any impact on front surface, back
surface,and framesas thiscould resultin 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 frommaterialsthat retain structuralintegrity over
the 25 yearslifespanof the panels theysupport.
AST DNA panels may be installed in portraits orlandscape
orientation.
Aminimumof tilt angle of 5degreesis requiredto ensure
drainage and enable rainwater.
Thejunctionbox edge should be at the top when mounted
in portraitorientation.
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 toUL1703 safety
standard.
Framecross-section
Module Wiring
AST DNA panels are pre-wired and terminated withMC4-
compatibleconnectors.
Connections to other panels shouldusecompatible
connectorsthat complywith Coderequirements
AST recommendsthat all wiring be double insulated with a
minimum rating of 90 C, and wiring should use flexible
copperconductorswhere minimumsize should be
determined by theapplicable Codes.
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