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SunPower recommends the use of open-circuit voltage temperature
coefficients listed on the datasheets when determining Maximum
System Voltage.
4.0
Electrical Connections
Modules may be connected in series and/or parallel to achieve the
desired electrical output as long as certain conditions are met. Please
use only the same type of modules in a combined source circuit.
The connectors on SunPower modules ship with a locking safety clip,
which once connected requires the use of a tool to disconnect
module-to-module connections. This defends against untrained
personnel disconnecting the modules when under load, in
anticipation of a change considered in the next update of IEC 61730.
SunPower recommends that all wiring be double insulated with a
minimum rating of 85º C (185° F). All wiring should use flexible
copper (Cu) conductors. The minimum size should be determined by
the applicable codes. We recommend a size not less than 4mm
insulation type should be appropriate for the type of installation
method used and must meet SCII (Safety Class II) and IEC 61730
requirements.
4.1 System & Equipment Grounding
Please refer to the applicable regional and local codes on grounding
PV arrays and mounting frames for specific requirements (e.g.
lightning protection).
Module Types
New SPR
E & X series
modules are compatible with Transformer Less (TL)
inverters, when used as an ungrounded PV source.
No frame or system grounding Requirements (including functional frame
grounding)
E Series:
SPR-EYY-ZZZ SPR-EYY-ZZZ-BLK SPR-EYY-ZZZ-COM
X Series:
SPR-XYY-ZZZ SPR-XYY-ZZZ-BLK SPR-XYY-ZZZ-COM
Note: If you are installing an older Module Type than above
mentioned, please refer to different/previous Safety and Installation
Manual.
If you are doing a frame grounding connection, avoid the direct
contact between Aluminum and Copper using an intermediate metal
like steel or tin.
4.2 Series Connection
The modules may be wired in series to produce the desired voltage
output. Do not exceed the maximum system voltage.
4.3 Parallel Connection
The modules may be combined in parallel to produce the desired
current output. Series string must be fused prior to combining with
other strings if the resulting maximum reverse current exceeds the
fuse rating as shown in the datasheets. Bypass diodes are factory
installed in the modules. Please refer to the applicable regional and
local codes for additional fusing requirements and limitations on the
maximum number of modules in parallel.
5.0
Module Mounting
The SunPower Limited Warranty for PV Modules is contingent upon
modules being mounted in accordance with the requirements
described in this section.
© November 2014 SunPower Corporation. All rights reserved. Specifications included in this manual are subject to change without notice.
Safety and Installation Instructions - Document 001-15497 Rev K
5.1 Site Considerations
SunPower modules should be mounted in locations that meet the
following requirements:
Operating Temperature: All SunPower modules must be mounted in
environments that ensure SunPower modules will operate within the
following maximum and minimum operating temperatures:
Maximum
Temperature
Minimum
Temperature
Care should be taken to provide adequate ventilation behind the
modules, especially in hot environments.
Design Strength:
maximum positive (or upward, e.g. wind) and negative (or
downward, e.g. static load) design pressure of 2400 Pa when
2
. The
mounted in all of the mounting configurations specified in Section
5.2. A design strength of 2400 Pa corresponds approximately to a
wind speed of 200 km/h (125 mph).
SunPower modules are designed to meet a maximum negative (or
downward, e.g. snow load) of 5400 Pa for the following mounting
configurations only when mounted in adherence to Section 5.2
below. 5400 Pa design strength has been verified by SunPower and
certified.
1)
72 cell modules with dimensions of (1559mm x 798mm)
meet 5400 Pa in the following mounting configurations
described in Section 5.2 below
a.
b.
c.
2)
96 cell modules with dimensions of (1559mm x 1046mm)
meet 5400 Pa in the following mounting configurations
described in Section 5.2 below
a.
b.
When mounting modules in snow prone or high wind environments,
special care should be taken to mount the modules in a manner that
provides sufficient design strength while meeting local code
requirements.
Additional authorized Operating Environments:
Modules can be mounted in the following aggressive environment
according to the test limits mentioned below
Salt mist corrosion testing: IEC 61701 Severity 6 (Highest available
yet)
Ammonia Corrosion Resistance: Concentration: 6,667ppm
Excluded Operating Environments:
Certain operating environments are not recommended for specific
SunPower modules and are excluded from the SunPower Limited
Warranty for these modules.
No SunPower module should be mounted at a site where it may be
subject to direct contact with salt water, or other aggressive
environment.
5.2 Mounting Configurations
SUNPOWER CORPORATION
Operating
+85 °Celsius,+185 °Fahrenheit
Operating
-40 °Celsius, -40 °Fahrenheit
SunPower modules are designed to meet a
Frame Holes
Pressure Clamps or Clips
End Mount
Frame Holes
Pressure Clamps or Clips
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