Installation manual

Verification
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This manual is for use by qualified personnel only.
Verification Procedure Summary
The following procedures are intended to verify correct installation and proper
wiring of the Xantrex GT250 E. Prior to performing the following verification steps
on the Xantrex GT250 E, review all safety requirements and procedures outlined
in this manual and on any cautionary markings on the components within the
system.
Inspect the following items prior to completion of the installation:
1. Visually inspect all the mechanical connections. This would include both
electrical conduit fittings, as well as Enclosure anchoring and seismic
bracing if required.
2. Visually inspect the electrical connections and verify proper tightness of all
terminations.
3. Visually inspect the Isolation Transformer Wye/Wye connections and ensure
the transformer neutral connection is left disconnected or floating.
4. Perform corrective actions if required.
WARNING: Electrocution Hazard
This chapter describes specific steps to ensure the installation of the Xantrex
GT250 E 250 kW Grid-Tied Photovoltaic Inverter is correct and complete. Failure
to adhere to these warnings could result in severe shock or possible death.
Exercise extreme caution at all times to prevent accidents. These installation
instructions are for use by those familiar and skilled with high voltage
procedures.
WARNING: Shock Hazard
The Xantrex GT250 E Enclosures contain exposed high-voltage conductors. The
Enclosure doors should remain closed with the latches tightened, except during
installation, maintenance or testing. To reduce the risk of electric shock, do not
perform any servicing other than that specified in the installation instructions
unless you are qualified to do so.
WARNING: Lethal Voltage
In order to remove all sources of voltage from the Xantrex GT250 E, the incoming
power must be de-energized at the source. This may be done at the utility main
circuit breaker and by opening the AC disconnect and the DC disconnect
switches on the Xantrex GT250 E
. Review the system configuration to determine
all of the possible sources of energy. In addition, allow 20 minutes for the DC bus
capacitors, located within the cabinet, to discharge after removing power.