Recom RCM 6MB Series Manual

UL AND IEC INSTALLATION GUIDE
p. 1 of 14
Installation Instructions UL-1703 and IEC / Rev. 05-2018 V.5
RECOM © Copyright 2018 www.recom-solar.com
THIS DOCUMENT APPLIES TO THE FOLLOWING
RECOM PHOTOVOLTAIC MODULES:
60 Cell Monocrystalline Silicon Modules:
RCM-xxx-6MB (xxx=250-310)
60 Cell Polycrystalline Silicon Modules:
RCM-xxx-6PB (xxx=240-280)
72 Cell Monocrystalline Silicon Modules:
RCM-xxx-6MA (xxx=290-360)
72 Cell Polycrystalline Silicon Modules:
RCM-xxx-6PA (xxx=290-340)
Installation and Safety Instructions
for United States and Canada
and IEC version

UL AND IEC INSTALLATION GUIDE
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Installation Instructions UL-1703 and IEC / Rev. 05-2018 V.5
RECOM © Copyright 2018 www.recom-solar.com
Table of Contents
1. INTRODUCTION 3
How to use the manual 3
General guidelines 3
2. STORAGE, UNPACKING AND HANDLING 4
Safety 5
Maintenance 5
3. MECHANICAL INSTALLATION 6
Planning and Design 6
General Installation Guidelines 7
Module Installation options
Mechanical Installation Warnings
4. ELECTRICAL INSTALLATION 8
Planning and Design 8
Modules Wiring
5. MOUNTING CONFIGURATIONS 10
6. GROUNDING & ELECTRICAL WARNINGS 12
7. DISCLAIMER OF LIABILITY 13
8. DECOMMISSIONING AND RECYCLING 13
9.PRODUCT INFORMATION 14

UL AND IEC INSTALLATION GUIDE
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Installation Instructions UL-1703 and IEC / Rev. 05-2018 V.5
RECOM © Copyright 2018 www.recom-solar.com
1. INTRODUCTION
Thank you for selecting RECOM Photovoltaic Modules. The RECOM Photovoltaic Modules are designed and
manufactured to the highest quality standards. With correct installation and maintenance, RECOM modules will
keep providing clean energy for many years.
How to use this manual
• This manual contains information regarding the installation and safe handling of RECOM RCM- xxx-6MB
(xxx= 250-310), RCM-xxx-6PB (xxx= 240-280), RCM-xxx-6MA (xxx= 290-360), RCM-xxx-6PA (xxx= 290-340),
photovoltaic modules (hereafter referred to as “modules”), manufactured by RECOM AG, hereafter referred
to as “RECOM”.
• Installers must read and understand this guide prior to installation. For any questions, please contact our
Global Quality & Customer Support department for further information. Installers should follow all safety
precautions described in this guide as well as local codes when installing a module.
• Before installing a solar photovoltaic system, installers should familiarize themselves with its mechanical
and electrical requirements. Keep this guide in a safe place for future reference (operation and mainte-
nance) and in case of sale or disposal of the modules.
General Guidelines
• Installing solar photovoltaic systems requires specialized skills and knowledge. Installation should only be
performed by qualied persons.
• Installers should assume all risks of injury that might occur during installation, including, but not limited to,
the risk of electric shock.
• One single module may generate more than 30V DC when exposed to direct sunlight. Contact with a DC
voltage of 30V or more is potentially hazardous.
• Do not disconnect under load.
• Photovoltaic solar modules convert light energy to direct current electrical energy. They are designed for
outdoor use. Modules can be ground mounted, mounted on rooftops, vehicles or boats. The proper design
of support structures lies within responsibility of the system designers and installers.
• Do not use mirrors or other magniers to concentrate sunlight onto the modules. Articially concentrated
light shall not be directed on the modules.

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Installation Instructions UL-1703 and IEC / Rev. 05-2018 V.5
RECOM © Copyright 2018 www.recom-solar.com
• When installing the system, abide to all local, regional and national statutory regulations. Obtain a building
permit if necessary.
• Under standard test conditions, the electrical characteristics are within ±5 percent of the indicated values of
Isc and Voc (irradiance of 100mW/cm², AM 1.5 spectrum, cell temperature 25°C (77°F)).
• Only use equipment, connectors, wiring and support frames suitable for solar electric systems.
2. STORAGE, UNPACKING AND HANDLING
• Packaged modules must be stored indoors; in a dry and ventilated area.
• Once opened, continue to store modules in a dry and ventilated room.
• Do not expose packaged modules to rain, snow, hail or other environmental conditions that will compromise
the modules or packaging.
• To safely keep modules stored, they must remain packaged on the provided pallets, and must not be stacked
more than two pallets high.
• Modules should never be stored in a wet or outdoor environment.
• Upon unpacking, only carry a module by its frame with two or more people. Do not carry a module by the
wires or junction box.
• Keep all electrical components clean and dry.
• All modules are manufactured with a sealed junction box, pre-attached cables and locking connectors.
These components should not be modied or tampered with in any way.
• Do not allow unauthorized persons near the installation site or module storage area.
• Do not place or drop objects on top of the modules, including another module.
• Do not place any load on the module.
• Do not twist the module frame.
• Do not stand, step, walk or jump on the module.
• Do not handle modules with bare hands; avoid scratching, handling marks or any other damage, especially
to the front glass, back sheet or electrical components.
• Do not mark the modules with sharp instruments.
• Do not leave a module unsupported or unsecured.
• Do not modify module frames in any way.

UL AND IEC INSTALLATION GUIDE
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Installation Instructions UL-1703 and IEC / Rev. 05-2018 V.5
RECOM © Copyright 2018 www.recom-solar.com
Safety
The following safety guidelines and best practices should be followed at all times:
• All installations must be performed in compliance with all applicable regional and local electrical codes or
other applicable national and international electrical standards.
• Use only insulated tools during installation, troubleshooting and maintenance of the modules.
• Wear suitable protection to prevent direct contact with module’s electrical output and mechanical sharp
edges.
• Cover the front of the modules with an opaque material to stop production of electricity when installing or
working with a module or wiring.
• Modules connected in a series should not be disconnected under illumination. Disconnecting modules un-
der illumination may cause electrical arcing, which may result in burns, res or other injuries and damages.
• Troubleshooting should include planning, checking, disconnecting, cause seeking, replacement and record
keeping.
• Do not install or handle the modules or their components when they are wet or during periods of high wind.
• Do not attempt to disassemble, repair or open any part of the module; including the junction box or sub-com-
ponents.
• Do not articially concentrate sunlight on a module.
• Do not install or handle broken modules. If a module is broken, or the back sheet is torn, contact with the
surface or frame can cause an electrical shock.
• Do not wear rings, jewelry, watches or other metallic items while working with photovoltaic modules.
Maintenance
Check the modules for any damages to the glass surfaces and frames on a regular basis. Routinely inspect
all modules for safe electrical connections, sound mechanical connections, and for any shading or corrosion
issues. If dirt or debris becomes built-up clean the glass using only a soft cloth, with a mild, non-abrasive de-
tergent and water. RECOM recommends using mild cleaning liquids; a neutral pH in the range of 6.0 to 8.0 is
recommended. Chemicals with pH less than 6.0 or greater than 8.0 should be avoided as it may damage the
glass surface and/or the anti-reflective coating. Please consult with the system designer to determine the best
cleaning and inspection schedule based on local environmental conditions.
Do not power wash, use harsh cleaning materials or coarse objects such as scouring powder, steel wool, scrap-
ers, blades or other sharp instruments to clean the module. Use of any such methods and materials will void
the product warranty. Do not wash modules with water that is more than 20 0C cooler than the surface of the
module. Doing so can cause the glass to crack.

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Installation Instructions UL-1703 and IEC / Rev. 05-2018 V.5
RECOM © Copyright 2018 www.recom-solar.com
WARNING:
• Use caution when cleaning the back surface of the module to avoid scratching the substrate materials.
• Precautions should be taken to avoid damage to the glass surface when unpacking, handling or storing the
modules since any damage to the glass surface may impact the power output of the modules.
3. MECHANICAL INSTALLATION
Planning and Design
• Before installation, check to ensure the sub-structure will accommodate expected system loads. This in-
cludes and is not limited to roof, foundations, mechanical structure and mechanical connections.
• All RECOM solar modules have a module re resistance rating of Class Per UL 1703, the re rating of this
module is valid only when mounted in the manner specied in the mechanical mounting instructions. The
system re rating is determined by the module, rack and roong materials. RECOM recommends not mixing
module re performance type within a system.
• Mechanical structures should not contact the module back sheet, any racking or the microinverter under
any expected load conditions.
• Consider the following factors during system design, which will influence performance:
a. RECOM solar modules produce the most power when they are pointed directly at the sun, and should be
tilted for optimum system performance.
b. Proximity to obstructions have the potential to shade or damage the modules (examples below):
• walls
• buildings
• trees
• groundcover
• snow cover
• dust and debris
c. Designs should allow adequate airflow across the back of the module because elevated temperatures
will decrease energy yield.
d. Allow a minimum spacing of 10 mm between modules for thermal expansion.

UL AND IEC INSTALLATION GUIDE
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Installation Instructions UL-1703 and IEC / Rev. 05-2018 V.5
RECOM © Copyright 2018 www.recom-solar.com
General Installation Guidelines
Module Installation Options
• Each module should be mounted using four bolts through the mounting holes on the rear side of the mod-
ule, or with four clamps over the front side. No more than two clamps per side may be used.
• Depending on the desired load capability of the array, modules may be mounted either perpendicular or
parallel to the structure rails. Clamps can be mounted anywhere inside of the safe mounting range for each
case illustrated in Figure 1.
• If using bolts, use a bolt stack no smaller than M6, with two flat washers and a locking washer
• To ensure an adequate clamping area, all clamps must be able to clamp within the range specied. All fas-
teners used to x the modules with clamps should be no smaller than M6.
• To provide adequate xing or clamping force, torque the fasteners to the manufacturers torque specications.
• For all cases, the area of the supporting structure in contact with rear side of the module must comply with
the dimensions specied in the installation manual.
• All other structural dimensions, such as clamp and rail thickness, should be sized appropriately for the
intended site load.
Mechanical Installation Warnings
• Installation and maintenance should be performed by qualied personnel only.
• Use only insulated tools during installation, troubleshooting and maintenance of photovoltaic modules.
• Installers should adhere to all applicable local, regional, and national codes and regulations when designing
and constructing the photovoltaic system.
• Do not stand or walk on any surface of the modules. Do not place any objects or load on the surface of the
modules.
• Precaution should be taken to avoid damage to the glass surface with or without anti-reflective coating due
to improper handling during installation.
• Mechanical structures should not contact the module backsheet under any expected load conditions.
• Additional mounting holes may not be drilled in the frame, glass or backsheet.
• Ensure that frame weep holes are not obstructed by the mechanical installation.
• Mechanical installation of the module shall not cause the frame to torque more than 38 mm.
• A minimum clearance of 152 mm is required between the roof and bottom of the module frame.

UL AND IEC INSTALLATION GUIDE
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Installation Instructions UL-1703 and IEC / Rev. 05-2018 V.5
RECOM © Copyright 2018 www.recom-solar.com
4. ELECTRICAL INSTALLATION
Planning and Design
All modules are manufactured with a sealed junction box, pre-attached cables and locking connectors. These
components should not be modied or tampered with in any way.
• Ensure connectors are clean and dry before establishing connection.
• Ensure that all wire, fusing and disconnects are appropriately sized for the system design according to
national, regional, and local codes.
• Electrical characteristics are within plus or minus 5% of rated values for Isc, Voc, Impp and Vmp. Pmax
ranges between 0% to +3% of rated Pmax at standard test conditions (STC). However, modules will operate
under conditions that may be signicantly different than STC. RECOM suggests multiplying specied rat-
ings by a minimum of 1.25 or more when designing the system and balance of system components. Refer
to local codes before planning and designing the system.
• Determine the maximum number of modules that may be connected in series using the following formula
Ns =maxs/Vocm
Where:
Ns equals the maximum modules in series.
Vmaxs equals the maximum system voltage.
Please refer to module data sheet for actual Vmax rating, as some models are rated for 1000 V UL
and 1000 V IEC.
Vocm equals the module open circuit voltage at coldest conditions for the site (refer to local codes).
Module Wiring
• The module includes wires and polarized locking connectors from the junction box on the back of the
module. Field replacement of connectors or cables must be avoided and will void the product warranty. Po-
larized locking connectors of the same type, make and manufacturer are required for all series string wiring.
The maximum operating temperature of the wires and connectors should not exceed 85 0C.
• When installing modules in landscape orientation, use the 1.3 meter lead lengths to ensure enough cable
length to make adjacent module-to-module string connections (assumes a maximum spacing of 50 mm
between adjacent modules).
• Always wire modules so that proper polarity is maintained. Avoid placing excessive tension on the cables.
• There is no limit to the maximum number of series strings that can be combined in parallel. However, each
string must include overcurrent protection with a maximum rating of 15 A. RECOM recommends the use of

UL AND IEC INSTALLATION GUIDE
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Installation Instructions UL-1703 and IEC / Rev. 05-2018 V.5
RECOM © Copyright 2018 www.recom-solar.com
DC rated fuses or overcurrent protection devices with the appropriate maximum voltage rating.
• Do not connect modules directly to a parallel bus.
• The cross-sectional areas of cable and the connector type must be selected to align with the overall system
design, and should include the maximum short circuit current of the system, maximum operating tempera-
tures and cable run lengths.
• For eld connections, use at a minimum #12 AWG/4 mm2 wires; insulated for a minimum of 850C. Use
copper wire only.
WARNING:
Installers shall adhere to all applicable local, regional, and national codes and regulations when designing
and constructing the photovoltaic system
Note:
In colder climates, it may be necessary to further reduce the maximum number of modules in a series by
using Vocm at the minimum expected operating temperature.

MODULE ILLUSTRATION LOGO PARAMETERS DETAILS
CASE 1
Maximum Maximum
Rear Load: Front Load:
2400 Pa 5400 Pa
(50 psf) (113 psf)
Structural rails running perpen-
dicular to the length of the mod-
ule should be fixed via bolts at the
mounting holes between each
long side frame, or Clamps can be
mounted at the Fixed Clamp Mount
location as shown in the color code
key.
CASE 2
Maximum Maximum
Rear Load: Front Load:
2400 Pa 5400 Pa
(50 psf) (113 psf)
Structural rails running parallel to
the length of the module should be
fixed via bolts at the mounting holes
on each long side frame, or Clamps
can be mounted anywhere within
the Clamp Mount Range as shown
in the color code key.
A
BACK VIEW
FRONT VIEW
FRONT VIEW
C
BACK VIEW
Bolt Mount
Locations:
Fixed bolt
location for
5400 Pa
front load
Bolt Mount
Locations
Clamp Mount
Locations:
Fixed clamp
location for
2400 Pa front
load
Clamp Mount
Locations:
Clamp mount
allowable
range
UL AND IEC INSTALLATION GUIDE
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Installation Instructions UL-1703 and IEC / Rev. 05-2018 V.5
RECOM © Copyright 2018 www.recom-solar.com
5. MOUNTING CONFIGURATIONS
Select the proper installation method depending on the mounting method.
Figure 1: Mounting Configurations

CASE 3
Maximum Maximum
Rear Load: Front Load:
2400 Pa 2400 Pa
(50 psf) (50 psf)
Structural rails running parallel to
the length of the module should
be attached within the Mounting
Range on each long side frame as
shown in the color code key.
CASE 4
Maximum Maximum
Rear Load: Front Load:
2400 Pa 2400 Pa
(50 psf) (50 psf)
NEXTRACKER CENTER MOUNTING
(WITH RAILS)
The NexTracker mounting structure
(with rails) is authorized for use
with PV modules. Special mount-
ing holes have been provided on
the long rail of the module frame.
Use of these mounting holes for
anything other than NexTracker is
prohibited.
BACK VIEW
BACK VIEW
AP90 V1.5/ATI TRACKER
MOUNTING
Mounting Color Code: Mounting Hole Location Module Rail Fixed Clamp Mount Clamp Mount Range
Fixed Clamp Mount location: A - 394 mm D - 400 mm F - 200 mm
Clamp Mount allowable range: C - 444 mm E - 1188 mm
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Installation Instructions UL-1703 and IEC / Rev. 05-2018 V.5
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6. GROUNDING & ELECTRICAL WARNINGS
Grounding
• Module frames and structures grounding must be compliant with all national and local regulations.
• RECOM recommends grounding all module frames and associated structures in order to maintain a ze-
ro-voltage potential between the electrically conductive equipment and the earth in all scenarios.
• RECOM modules use a coated aluminum frame for corrosion resistance. In order to ensure proper ground-
ing the coating must be penetrated by the grounding method. A copper grounding wire with a minimum
gauge of 12 AWG is recommended to carry the electrical ground load. Consult applicable codes to ensure
the appropriate conductor diameter is used for the system. The grounding method must not allow direct
contact of dissimilar metals with the frame of the module, as this would result in galvanic corrosion. UL
1703 recommends metal combinations not to exceed a voltage potential of 0.5.
• The frame has predrilled holes marked with a grounding sign as illustrated in the following Figure. These
holes should be used exclusively for grounding. Do not drill additional holes or modify existing holes in
the frame.
Figure: Image of the grounding holes
Electrical Installation Warnings
• Installation and maintenance should be performed by qualied personnel only.
• Use only insulated tools during installation, troubleshooting and maintenance of photovoltaicl modules.
• Installers should adhere to all applicable local, regional and national codes and regulations when designing
and constructing the photovoltaic system.

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Installation Instructions UL-1703 and IEC / Rev. 05-2018 V.5
RECOM © Copyright 2018 www.recom-solar.com
• Photovoltaic modules produce DC electrical energy from sunlight. When illuminated, each module can have
a DC potential of over 45V and should be handled with care.
• Disconnecting modules under illumination may causel electrical arcing, which may result in burns, res, or
other injuries and damages. Modules connected in series should not be disconnected under illumination.
• Always use a wire management system that keeps wires and cables out of direct contact with edgedl sur-
faces, which could cut or damage the insulation. Do not allow wires to rest on the ground or roof surface.
• The module junction box should not be opened or modied in any way in the eld.
• Do not use mirrors, lenses or other techniques to magnify or concentrate additional light on the module.
7. DISCLAIMER OF LIABILITY
• As the adherence to this manual and the conditions or methods of installation, operation, use and mainte-
nance of photovoltaic (PV) products are beyond RECOM’s control, RECOM does not accept responsibility
and expressly disclaims liability for any loss, damage, or expense arising out of or in any way connected
with such installation, operation, use or maintenance.
• No responsibility is assumed by RECOM for any infringement of patents or other rights of third parties,
which may result from the use of the PV product. No license is granted by implication or otherwise under
any patent or patent rights.
• The information in this manual is based on RECOM’s best knowledge and experience and is believed to be
reliable; but such information including product specication (without limitations) and suggestions do not
constitute a warranty, express or implied. RECOM reserves the right to change the manual, the PV product,
the specications, or product information sheets without prior notice.
The product warranty will be voided if:
• Handling and installation does not conform to RECOM’s written installation instructions.
• The product has been modied in a manner noth previously authorized by RECOM in writing.
• The product is installed in an environment for which it was not designed.
8. DECOMMISSIONING AND RECYCLING
• The dismantling of PV systems must be performed with the same care and safety precautions used during
the initial installation. The PV system can generate hazardous voltage even after the system has been dis-
connected. Follow safety regulations for working with live electrical equipment.
• Please recycle modules at end of life adhering to local guidelines and regulations.

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RECOM © Copyright 2018 www.recom-solar.com
9. PRODUCT INFORMATION
Structural Drawings
The engineering drawing shown belongs to the following listed RECOM Module Series:
RCM 330/335/340/345/350/355-6MA
Dimension mm inch
MODULE DIMENSIONS
A990 39.0
B1,976 77.8
C35 1.38
D35 1.38
E35 1.38
PHYSICAL PARAMETERS
Dimension mm inch
MOUNTING HOLE SPACING
F950 37.4
G1,188 46.8
P400 15.7
CABLE LENGTH
H1,300 51.2
Module Weight:
21.2 Kg
Frame Material:
Anodized aluminum - Aloy
Tempered ARC Glass Thickness:
3.2 mm
Connector types:
Amphenol H4 (-39)