Generac Power Systems S2502 Installation Manual page 20

Mounting and Connecting
Mounting to Nonmetallic or Ungrounded
Structures
1. Use two fasteners appropriate for the structure.
2. See Figure 5-1. Fasten the equipment grounding
conductor to grounding terminal (C) using a field
supplied lug.
3. Use listed bonding hardware only.
4. Size equipment grounding conductor per NEC re-
quirements and
specifications.
Mounting to Rail-less Racking
Proceed as follows to mount to rail-less racking.
1. Select mounting structures which allow for PV Link
to be installed adhering to the
Guidelines.
2. See Figure 5-3. Use two fasteners compatible with
the mounting structure.
Figure 5-3.
Figure 5-3. Installing to Rail-less Racking
3. See Figure 5-1. Fasten the equipment grounding
conductor to grounding terminal (C) using a field
supplied lug.
NOTE: For PV Link model S2502, attachment
flange slots (B) may be widened using tooling, such
as a drill and bit, where the rail-less racking mount
bolt needs to fit for mounting.
4. Use listed bonding hardware only.
5. Size equipment grounding conductor per NEC re-
quirements and
specifications.
20
tighten per manufacturer
PV Link Installation
012922
tighten per manufacturer
Connecting PV modules
CAUTION
Equipment damage. Never leave the PV Link MC4 con-
nectors open and exposed to the atmosphere overnight
or during rain. Doing so could cause equipment failure.
CAUTION
Equipment damage. Never connect PV Link to any other
power source. The optimizer is designed to work with
series connected PV modules only. Connecting the opti-
mizer to any other power source could cause equipment
damage.
NOTE: Warranty does not cover water ingress through
wiring from external connections due to poor wiring
practices.
PV modules require Staubli
nectors. Brands other than Staubli MC4 connectors are
not recommended.
2014 NEC and Earlier Editions
NOTE: For 2014 NEC compliant systems, SnapRS are
not required.
See Figure 5-4 and Figure
be wired in series to a PV Link. Parallel series substrings
may be necessary for high-voltage modules.
2017, 2020, and 2023 NEC Compliant Systems
See Figure 5-4 and Figure
and 2023 NEC compliant systems, connect the substring
PV modules in series using one SnapRS device in be-
tween each module.
Installation Manual for PV Link and SnapRS Installation Manual
(C000657)
(C000661)
® (Multi-Contact) MC4 con-
5-5. Not all PV modules can
5-5. For NEC 2017, 2020,