Dc Wiring; Ac Wiring - Generac Power Systems XVT076A03 Installation And Owner's Manual

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DC Wiring

DANGER
Electrocution. Never touch terminals when
inverter and PWRcell DC disconnects are ON.
Doing so will result in death or serious injury.
WARNING
Equipment damage. Obey polarity markings when
connecting REbus devices. Reverse-polarizing DC
circuits could result in equipment or property damage.
WARNING
Equipment damage. Do not connect raw, unregulated
battery output to inverter. Connect only REbus-compatible
batteries. Connecting batteries that are not REbus-
compatible could result in equipment or property damage.
CAUTION
Equipment damage. Do not connect PV string output
directly to inverter. PV must be connected via Generac
PWRcell PV Link. Connecting PV output directly to inverter
could result in equipment or property damage.
CAUTION
Equipment damage. Connect only one wire to each
DC wiring terminal. Doubling wires on a terminal
could result in equipment or property damage.
CAUTION
Equipment damage. Connect only to REbus-compatible
devices to the DC bus. Never connect to any other DC
power source. Connecting to other DC power sources
could result in equipment damage.
NOTE: The inverter does not itself provide ground fault
detection and interruption for PV circuits. PV GFDI is
provided by Generac PV Links in a PWRcell system.
Connect all REbus devices to the REbus bi-
directional DC terminals.
Each terminal is protected by a 30 A two-pole
circuit disconnect.
PWRcell DC disconnects indicate state and may
be used to disconnect DC circuits.
PWRcell
DC
disconnects
ungrounded DC conductors simultaneously.
Torque all terminals as specified in
NOTE: Disable inverter before turning PWRcell DC
disconnects to ON position.
Installation and Owner's Manual for Generac PWRCell Inverter
18-6 AWG
(.75-10 mm)
(000686a)

AC Wiring

NOTE: The installer is responsible for providing 40 A
overcurrent protection for the AC grid wiring terminals
(A). The conductors and overcurrent protection device
shall be sized in accordance with NEC Article 705 for the
(000646)
utility power connection. All other conductors shall be
sized in accordance with NEC Article 310 and all other
applicable NEC Articles.This system is equipped with a
power control system (PCS). The PCS controlled AC grid
conductors shall be protected with a suitably rated
overcurrent device appropriately sized for the conductor
ampacity.
(000645)
(000644a)
NOTE: Use L3 terminal (B) with 3-phase inverters only.
(000647a)
(000598a)
disconnect
both
Table
5-6.
Table 5-6. DC Wiring Terminal Specifications
Terminal
Wire Size
Temp Range
-40 to 266ºF
(-40 to 130ºC)
See
Figure
5-4. The PWRcell Inverter is equipped
with four AC grid connection terminals and three
protected loads terminals.
Use the top four terminals (A) for connection to the
utility grid.
Use the bottom three terminals (C) for protected
loads output. See
Protected
N1
L1
L2
L3
(3p)
N
Protcd.
L1
Protcd.
L2
Protcd.
Figure 5-4. AC Wiring Terminals
Torque all terminals as specified in
Table 5-7. AC Wiring Terminal Specifications
Wire Size
Terminal Temp Range
Wire Min Temp Rating
Torque
Electrical Connections
Wire Min
Torque
Temp Rating
194ºF
12 in-lb
90ºC
(1.35 Nm)
Loads.
A
B
C
009996
Table
5-7.
10 to 6 AWG
2
2
(5.26 mm
to 13.3 mm
)
Up to 248ºF (120ºC)
194ºF (90ºC)
13.3 in-lb to 15.9 in-lb
(1.5 Nm to 1.8 Nm)
17

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