Generac Power Systems S2502 Installation Manual page 19

Section 5: Mounting and Connecting
PV Link Installation Guidelines
WARNING
Hot Surfaces. Locate and install the PV Link
so as to avoid inadvertent contact. When op-
erating in hot weather the optimizer will be-
come hot and could result in personal injury.
• Mount the optimizer at least 3 ft (0.9 m) from the
ground.
• Install PV Links close to the edge of the array for
best cooling and easier service access.
• Ensure at least a 1 in (25.4 mm) clearance between
the heatsink fins and adjacent surfaces to allow suf-
ficient air flow for cooling.
• The PV Link can be installed in any orientation.
Cooling is most effective if fins are oriented verti-
cally and facing away from the PV module.
• A PV Link can connect to a substring of PV mod-
ules with cumulative voltage between 60 - 420
VDC. Calculate maximum substring length using
the Voltage Considerations in
tion Design of this manual.
• The modules within each substring must be the
same type.
• For optimal performance, all modules should be
mounted at the same tilt and azimuth.
• When installing a system with multiple PV Links, it
is not necessary to match the number of modules,
roof pitch, or azimuth across all substrings in an
array.
• Review the PV module instructions to determine if
any restrictions for mounting devices under the
module exist as part of the PV module listing.
• All PV Wiring shall be properly secured and sup-
ported in accordance with NEC Article 690.
• PV wiring shall not contact the building roof and
shall be protected from any physical damage.
Mounting and Grounding PV Link(s)
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.
The following sections contain instructions for mounting
PV Link (s) with correct attachment and grounding for
Installation Manual for PV Link and SnapRS Installation Manual
various mounting conditions. Correct grounding is neces-
sary for REbus communications.
Mounting to Metallic or Grounded Structures
See
to metallic PV racking, install the PV Link with label (A)
facing up. Attachment flange slots (B) accept fasteners
(W000670)
up to M8 or 5/16 in diameter.
Figure 5-1.
Section 3 Installa-
Mounting to a Grounded Rail
Figure 5-2.
(C000657)
Figure 5-1. If mounting PV Link underneath an array
ENCLOSURE MUST BE GROUNDED
for REbus communication
A
PV Link / S2502
SnapRS™ compatible substring optimizer
PV rapid shutdown system equiptment
IMPORTANT INSTALLATION INSTRUCTIONS:
Input:
Max 420V temperature corrected V
≤ 420Voc
SINGLE STRING INPUT.
Dual string input requires approval.
≤ 420Voc Output:
Connect PV Links to inverter REbus
terminals in parallel.
WARNING:
ELECTRIC SHOCK HAZARD - THE DC CONDUCTORS OF THIS PHOTOVOLTAIC SYSTEM ARE UNGROUNDED AND MAY BE ENERGIZED. ELECTRIC SHOCK HAZARD - DC OUTPUT CONDUCTORS MAY BE ENERGIZED REGARDLESS OF SUN EXPOSURE.
CAUTION:
RISK OF ELECTRIC SHOCK - WHEN THE PHOTOVOLTAIC ARRAY IS EXPOSED TO LIGHT, IT SUPPLIES A DC VOLTAGE TO EQUIPMENT. COVER PV MODULE IN OPAQUE MATERIAL BEFORE CONNECTING OR DISCONNECTING THIS OPTIMIZER. DURING FAULT, ZERO CURRENT IS SOURCED
INTO DC ARRAY BY THIS CONVERTER. INSTALL IN ACCORDANCE WITH ALL LOCAL ORDINANCES. HOT SURFACE - TO REDUCE THE RISK OF BURNS-DO NOT TOUCH. RAPID SHUTDOWN: DEVICE AUTOMATICALLY DISCONNECTS PV ARRAY - LOSS OF GRID, MANUAL SHUTDOWN FROM CONTROLLER, OR
ANY FAULT ON REBUS™ DC NANOGRID WILL AUTOMATICALLY DISCONNECT ARRAY FROM GRID.
AVERTISSEMENT:
RISQUE DE CHOC ÉLECTRIQUE - LES CONDUCTEURS DC DE CE SYSTÈME PHOTOVOLTAÏQUE NE SONT PAS RELIÉS À LA TERRE ET POURRAIENT ÉTRE SOUS TENSION. RISQUE DE CHOC ÉLECTRIQUE - LES CONDUCTEURS À SORTIE DC POURRAIENT ÊTRE SOUS TENSION
INDÉPENDAMMENT DE LEURS EXPOSITIONS AU SOLEIL.
ATTENTION:
RISQUE DE CHOC ÉLECTRIQUE - LORSQUE LE GÉNÉRATEUR PHOTOVOLTAÏQUE EST EXPOSÉ À LA LUMIÈRE, IL FOURNIT UNE TENSION CONTINUE À L' A PPAREIL. COUVREZ LE MODULE PHOTOVOLTAÏQUE D'UN MATÉRIAU OPAQUE AVANT DE BRANCHER OU DE DÉBRANCHER CET
OPTIMISEUR. EN CAS DE DÉFAUT, IL N'EXISTE AUCUN COURANT ENTRE CE CONVERTISSEUR ET LE GÉNÉRATEUR CONTINU. INSTALLEZ EN CONCORDANCE AVEC TOUS LES RÈGLEMENTS LOCAUX. SURFACE CHAUDE - AFIN DE REDUIRE LE RISQUE DE BRÛLURES, NE TOUCHEZ PAS. SYSTÈME D' A RRÊT
RAPIDE: L' A PPAREIL SE DECONNECTE AUTOMATIQUEMENT DU GÉNÉRATEUR PHOTOVOLTAÏQUE - EN CAS DE PERTE DE RÉSEAU, D' A RRÊT MANUEL DE COMMANDE ÉLECTRIQUE, OU DE DEFAILLANCE DU SYSTEME "REBUS™ DC NANOGRID, " LE GÉNÉRATEUR SE DECONNECTERA DU RÉSEAU PRINCIPAL.
Figure 5-1. Grounding Terminal Location
1. See Figure 5-2. Use two rail-compatible fasteners
(D) to secure the PV Link to the grounded rail.
D
Figure 5-2. Attaching to a Grounded Metal Rail
2. Use a grounding washer (E) between the rail and
attachment flange to penetrate the rail's anodized
coating.
3. Tighten fasteners according to the clip manufac-
turer's instructions.
Mounting and Connecting
B
C
ENCLOSURE MUST BE GROUNDED
for REbus communication
Made in the USA
Conforms to UL1741, UL1699B
Certified to CSA C22.2 #107.1
MAX CONT. OUTPUT POWER 2500 W
STANDBY POWER <1 W
.
RATED POWER INPUT VOLTAGE 200-360 VDC
oc
MPPT INPUT VOLTAGE 60-360 VDC
MAX INPUT VOLTAGE 420 V
MAX OUTPUT VOLTAGE 420 V
OUTPUT REbus™ DC Nanogrid
MAX AMBIENT TEMP 70° C
MAX OUTPUT OVERCURRENT PROTECTION 30 A
MAX INPUT CURRENT (OPERATING) 13 A @ 50ºC, 10 A @ 70ºC
MAX INPUT CURRENT (SHORT CIRCUIT) 18 A
MAX OUTPUT CURRENT (CONTINUOUS) 8 A
MAX OUTPUT CURRENT (FAULT) 10 A
ENCLOSURE TYPE 3R
TOPOLOGY BOOST CONVERTER
PROTECTIONS GFCI, Photovoltaic DC Arc-Fault
Circuit-Protection, Type 1, PVRSE
010025
E
010026
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