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Generac Power Systems S2502 Installation Manual page 22

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Mounting and Connecting
Proceed as follows to install PV modules in series to PV
Link:
1. Connect the negative lead of the first module in the
string to the PV Link at the location marked PV
Substring Input (-). See
PV Input location.
2. Connect the first module's positive lead to the sec-
ond module's negative lead.
3. Continue connecting the substring module leads in
series until the last module is reached.
4. Connect the positive lead of the last module in the
substring to the PV Link at the location marked PV
Substring Input (+) using an appropriate field in-
stalled jumper as necessary. See
cations
for PV input location.
5. Make a substring map using the serial number
stickers and record in
SnapRS Important Information
information:
Each PV Link serial number
Each PV Link RCP number
Number of substrings in parallel.
SnapRS Installation Guidlines
The following important installation requirements should
be adhered to for new and existing installations.
Always verify the number of SnapRS devices de-
tected matches the physical number of SnapRS de-
vices installed. Do not modify "SnapRSInstalled"
counts to force PV Link operation.
Maintain at least 1/2 in (12.7 mm) of clearance be-
tween the SnapRS and a PV module substrate.
See the PV module installation instructions to de-
termine if any restrictions for mounting devices
under the module exist as part of the PV module
listing.
Do not install SnapRS in locations subject to contin-
uous standing water. U-channel racking or confined
raceways are prone to water intrusion and are not
appropriate locations for SnapRS devices.
Avoid placing mechanical stress on the MC4 con-
nectors of the input/output of the SnapRS device.
SnapRS devices should not be installed in such a
way that allows direct contact with the building or
roofing materials.
Pre-install SnapRS devices to each PV module's
negative (-) whip to ensure a 1:1 ratio.
Mounting & Connecting RS802 model SnapRS
Devices
NOTE: MC4 connectors are not watertight unless mated.
Never leave this system partially assembled.
22
Component Locations
for
Component Lo-
Table 1 PV Link and
the following
See
Figure
5-4. PV modules are installed in series
with SnapRS devices connected inline between
each module.
See
Figure
5-5. High voltage modules can be con-
figured using parallel substrings to the input of the
PV Link.
Proceed as follows to install SnapRS devices:
1. See
Figure
5-4. For each PV Module in the PV
string, connect the positive (+) end of one SnapRS
device (G) to the negative (-) whip of the PV mod-
ule (H).
2. Connect the negative (-) end of each SnapRS de-
vice to the positive (+) whip of the next PV module
in the series.
3. Connect the PV substring positive lead to PV Link
at the location marked PV Substring Input + (F).
See
Component Locations
4. Connect the PV substring negative lead with its
connected SnapRS device to PV Link at the loca-
tion marked PV Substring Input - (E). See
nent Locations
for more information.
5. Secure the SnapRS devices to the module frame
or racking using PV cable clips or suitably-rated ca-
ble ties (UV, exterior use) and allow 3 - 6 in (76.2-
152.4 mm) on either side of each SnapRS to pro-
vide correct cooling and ventilation.
6. Record site details in
SnapRS Important Information
ray map using
Table 2 : PV Array
Mounting & Connecting RS802-clip model
SnapRS Devices
IMPORTANT
NOTE:
mounting clips provide grounding for the device and
must be used. Do not install the SnapRS without us-
ing these clips for mounting to a grounded surface.
NOTE: MC4 connectors are not watertight unless mated.
Never leave this system partially assembled.
See
Figure
5-4. PV modules are installed in series
with SnapRS devices connected inline between
each module.
See
Figure
5-5. High voltage modules can be con-
figured using parallel substrings to the input of the
PV Link.
Proceed as follows to install SnapRS devices:
1. See
Figure
5-4. For each PV Module in the PV
string, connect the positive (+) end of one SnapRS
device (G) to the negative (-) whip of the PV mod-
ule (H).
2. Connect the negative (-) end of each SnapRS de-
vice to the positive (+) whip of the next PV module
in the series.
Installation Manual for PV Link and SnapRS Installation Manual
for more information.
Compo-
Table 1 PV Link and
and make an ar-
Map.
RS802-clip
SnapRS
device

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