General Installation Manual
Photovoltaic Module HIT®
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Model No. |
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VBHNxxxSA16 series |
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VBHN330SA16 and 16B |
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VBHN325SA16 and 16B |
Thank you for choosing Panasonic HIT®. Please read this manual completely before installation or use of Panasonic PV(photovoltaic) modules. With proper operation and maintenance, Panasonic HIT® will provide you with clean, renewable solar electricity for many years. This manual contains important installation, maintenance and safety information. The word “module” as used in this manual refers to one or more PV modules. Retain this manual for future reference. The module is considered to be in compliance with UL 1703 only when the module is mounted in the manner specified by the mounting instructions below.
SANYO is part of the Panasonic Group and is in charge of the manufacturing process for Panasonic HIT®.
Contents
Please read before installation |
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Safety Precautions |
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General Information |
:3 |
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Warning |
:3 |
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Cautions |
:3 |
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General Safety |
:3 |
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UL Listing Information |
:3 |
Installation |
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General |
:3 |
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Notes on Installation |
:3 |
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Operating Conditions |
:4 |
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Special Conditions |
:5 |
Specifications |
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Note on Specifications |
:5 |
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Mechanical Loading |
:5 |
Unpacking and handling |
:5 |
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Wiring |
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General |
:5 |
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Module Wiring |
:5 |
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Array Wiring |
:5 |
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Earth Ground Wiring |
:5 |
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Grounding Locations |
:6 |
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Grounding Methods |
:6 |
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Module Terminations |
:7 |
Junction Box and Terminals |
:7 |
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Conduit |
:7 |
Diodes |
:7 |
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Maintenance |
:7 |
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Disclaimer of Liability |
:7 |
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Contact Information |
:7 |
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“HIT” is a registered trademark of Panasonic Group.
Other product and service names listed in this manual are trademarks or registered trademarks of their respective companies.
VBHNxxxSA16 series |
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Edition |
Revision |
Revised Item |
Revised Content |
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Date |
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New Edition |
2016.2.10 |
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2nd Edition |
2016.3.17 |
Name change |
Change from connection box to connection |
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devices |
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Change from ambient to operating |
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3rd Edition |
2016.4.20 |
Changing installation condition |
Clearance between the roof surface and the |
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module |
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Addition of figures of clamps |
Add the figures and requirement specification of |
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4th Edition |
2016.11.18 |
clamps |
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Addition of limitation of connectors |
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Add the limitation of connectors |
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Changing inscription of installation |
Change inscription of installation condition |
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5th Edition |
2017.3.6 |
condition |
Add the mounting method of using a bolt and |
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Addition of mounting method |
nut |
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6th Edition |
2017.9.20 |
Change figure |
As for figure 2, 3-1, 4-2, the shape of the junction |
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box was changed. |
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2
Safety Precautions
General Information
The installation of solar modules requires a great degree of skill and should only be performed by qualified licensed professionals, including, without limitation, licensed contractors and electricians.
WARNING
All instructions should be read and understood before attempting to install, wire, operate, and maintain a photovoltaic module.
Contact with electrically active parts of the module such as terminals can result in burns, sparks, and lethal shock whether the module is connected or disconnected.
The installer assumes the risk of all injury that might occur during installation, including, without limitation, the risk of electric shock.
The modules generate DC (direct current) electrical energy when exposed to sunlight or other light sources. Even a single module produces enough voltage and current, to cause shocks and burns if safety precautions are not followed.
The shock hazard increases as modules are connected in parallel, producing higher current, and as modules are connected in series, producing higher voltages.
Do not hit the back sheet of a module by the connector or other things.
To avoid the hazard of electric sparks, shock, fire, burns, damage and injury:
Work only in dry conditions, with dry modules and dry tools.
In order to avoid submerging cables and connectors in the water, cables must be fixed either to the module frame using cable fixing holes or to the mounting structure.
Do not stand or step on modules. Do not puncture, cut, scratch or damage the backsheet of a module. Backsheet damage will void a module’s Limited
Warranty and may cause fire. Never use modules with a damaged back sheet.
Do not allow children and unauthorized persons near the installation or storage site of modules.
Completely ground all modules.
Do not disassemble a module, attempt any repair, open the junction box cover, nor remove any parts installed by Panasonic. There are no user serviceable parts within the module or junction box.
Unauthorized persons - except the qualified licensed professional - should
not perform any electrical work, including wiring,
Wear suitable clothing, guards, eye protection and gloves to prevent you from direct contact with 30 VDC or greater.
Wear non-slip gloves and carry modules by the frame using both hands. Do not attempt to carry a module by yourself.
Do not carry a module by its wires or junction box.
Do not drop anything on the surface of a module.
Ensure all system components are compatible, and they do not subject the module to mechanical or electrical hazards.
Sparks may occur; do not install modules where flammable gases or vapors are present.
Never rest or leave a module unsupported or unsecured.
Do not drop modules.
Do not use or install broken modules.
Do not artificially concentrate sunlight on a module.
Do not touch the junction box terminals.
Do not change the wiring of bypass diodes.
Do not touch a module unnecessarily. The glass surface and frames get hot. There is a risk of burn.
CAUTIONS
Use a module for its intended purpose only.
Do not treat the back sheet, frame, or front surface with paint or adhesives, to avoid reducing its’ functionality, damage, and causing inoperable conditions, and other unknown troubles.
Do not insert PV cable between back side and mounting structure rail.
GENERAL SAFETY
Follow all permissions, installation and inspection requirements.
Before installing modules, contact the appropriate authorities having jurisdiction to determine permissions, installation and inspection requirements, which should be followed.
Electrically ground modules for all systems of any voltage. If not otherwise specified, it is recommended that requirements of the latest National Electrical Code (USA) or Canadian Electric Code (Canada) or other national or international electrical standards be followed. Refer to “Earth Ground Wiring” section for more information.
Be sure that the building or structure (roof, façade, etc.) where the modules are being installed has enough strength to support the load of the modules.
For modules mounted on roofs, special structures may be required to help provide proper installation support.
The fire rating of this module is valid only when mounted in the manner specified in the mechanical mounting instructions.
Both, roof construction and module installation design have an effect on the
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fire resistance of a building. Improper installation may contribute to fire hazards.
The models in this instructions are suitable to maintain the System Fire Class Rating A when used with a Listed mounting system and a roof covering that have been rated as a Class A System when installed on a steep slope roof and/or a low slope roof with "Type 2" modules.
Additional devices such as ground fault, fuses, and disconnects may be required.
Do not use modules of different specifications in the same system.
Follow all safety precautions of other system components which are used.
UL Listing Information
To satisfy UL requirements, when installing the modules, be sure to:
1)Use only stranded or solid copper single– conductor sunlight-resistant cable rated for outdoor use (e.g. type UF or USE) , for all wiring that is exposed to weather.
2)Observe the requirements described in sections labeled INSTALLATION and SPECIFICATIONS.
INSTALLATION
General
Please read this guide completely before installing or using your Panasonic PV modules. This section contains important electrical and mechanical specifications.
Modules should be firmly fixed in place in a manner suitable to withstand all expected loads, including wind and snow loads.
Metals used in locations that are exposed to moisture shall not be employed alone or in combinations that could result in deterioration or corrosion.
Install modules where they are not shaded by obstacles like buildings and trees. Pay special attention to avoid partially shading the modules by objects during the daytime.
If needed, contact an Authorized Representative with questions regarding mounting profiles for Panasonic HIT®.
Notes on Installation
Clearance between the roof surface and module frame is required to allow cooling air to circulate around the back of the module. This also allows any condensation or moisture to dissipate. The required clearance between the roof surface and the module is more than 4 inch.
Panasonic recommends the installation method and mounting profile shown in Figure 1-1 and Figure 1-2.
Figure 1-1 shows that a module should be attached on a mount or support structure rail by corrosive-resistant metal clamps.
The clamps should be made of aluminum alloy or other material that will reasonably protect against a risk of electrolytic corrosion.
Figure 1-2 shows using a bolt and nut for mounting.
Recommendation of bolt torque: 10 ft-lbs.
The module was tested using Unirac or IronRidge clamps with the specifications see figure 1-1 and below;
1)Unirac clamps:
Provider: Unirac, Inc.
Product Line: SolarMount
Clamps type: Top Mounting Clamps (Mid clamp and End clamp)
Unirac Part No. 302022C, 302022D, 302027C, 302027D
Width: Mid clamp; 1.5”(38 mm), End clamp; 1.9”(48 mm)
Thickness: Mid clamp; Nominal thickness 0.075”(1.9mm), End clamp; Nominal thickness 0.125”(3.17mm)
Torque: 13.6 N.m(10 ft-lbs).
Material: Mid clamp; 300 Stainless steel, End clamp; 6000 Aluminum alloys
Note: Please refer to Unirac manual, for installation method.
2)IronRidge clamps:
Provider: IronRidge Inc.
Product Line: RoofMount
Clamps type: Top Mounting Clamps (Grounding mid clamp and End clamp)
IronRidge Part No. RS-GD-MCL-225, RS-GD-MCL-225B, 29-7000-224, 29- 7000-224B
Width: Grounding mid clamp; 1.16”(29.5 mm), End clamp; 1.5”(38 mm)
Thickness: Grounding mid clamp; Nominal thickness 0.11”(2.85mm), End clamp; Nominal thickness 0.125”(3.17mm)
Torque: 9.5 N.m (85 in-lbs).
Material: Grounding mid clamp; 304 Stainless steel, End clamp; 5000 & 6000 Aluminum alloys
Note: Please refer to IronRidge manual, for installation method.
Panasonic does not provide a warranty for clamps. The module warranty Panasonic provides shall be voided if clamps selected by the customer are of an improper material or size
Operating Conditions
Panasonic requires that modules are operated within the following Operating Conditions:
1)Terrestrial applications only-no outer space or Special Conditions (see below).
2)The operating temperature must be within –40°C (-40 °F) to 85°C (185 °F).
3)The wind pressure load of the installation site should be less than 2,400N/m2 (50PSF)
Installation (reference)
Solar Module
Mid Clamp (2 places)
End Clamp (2 places)
Mounting |
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Structure Rail |
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End Clamp |
Mid Clamp |
Solar Module |
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Mounting Structure
Rail <Cross section of clamps>
Overlap range 0.24” (6mm)
Mid clamp |
End clamp |
<Unirac clamps>
Mid clamp |
End clamp |
<Ironridge clamps> |
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Grounding Mid clamp |
End clamp |
Figure 1-1. Installation
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