12
Freedom SW Installation Guide
Planning Preparations
AC Output
The output voltage on Freedom SW inverter/chargers is 120Vac. The AC
output line configuration depends on the model.
•
Single AC Line models have a Single Input and Single Output line
(SI-SO) configuration.
•
Dual AC Line models support Dual Input and Dual Output lines
(DI-DO) configuration.
AC Loads
The Freedom SW is intended to power loads consisting of 120 volts AC
appliances.
In Invert mode, the Freedom SW connects L1 and L2 output lines together
to provide 120 volts AC to loads on either line. In AC Bypass mode, the
source connected to the AC input is passed through to the load. Because of
the way invert mode operates, only 120 volts AC appliances can be
connected to the Freedom SW output.
AC Disconnect and Over-Current Protection Device
To meet CSA, UL, and electrical code requirements, and to protect system
wiring, the AC inputs and outputs of the inverter/charger must be provided
with overcurrent protection on both the AC input and output. This
protection may be a circuit breaker or a fuse with a disconnect device (for
simplicity the following refers to breakers). Refer to your applicable
installation codes and the following requirements:
AC Input Protection
The breakers protecting the AC input of the Freedom SW must be approved
for use on 120 volts AC branch circuits, and must be located in each Line.
The breakers must be rated as shown below:
•
Split-phase input: No more than 30 amps max in each line.
•
Dual input: The neutral current in a dual-input system is the sum of the
two line currents, and must be limited to 60 amps maximum to protect
the transfer relay in the Freedom SW. Each breaker must not exceed
30 amps, and the total (sum) of the ratings of the two breakers must not
exceed 60 amps.
AC Output Protection
The breaker between the Freedom SW AC output and the AC loads must be
rated to protect the AC output wire size used. If the AC output wiring is
based on the full 30-amp pass-through rating, then a 30-amp output breaker
is acceptable. If the AC output wiring is smaller, then the breaker size will
have to be smaller as well, in accordance with applicable electrical
installation codes.
ELECTRICAL SHOCK HAZARD
Do not connect 240 volts AC loads to the Freedom SW outputs. Doing so
may result in 120 volts AC on exposed parts of the appliance.
Failure to follow these instructions will result in death or serious
injury.
Freedom SW 3K2K InvChg Install Guide.book Page 12 Wednesday, October 12, 2011 4:40 PM
