Installation manual

Visual Inspection of Mechanical Connections
153396 Revision D 4–3
This manual is for use by qualified installers only
Visual Inspection of Mechanical Connections
To perform a visual inspection of the Xantrex GT250 mechanical connections:
Visual Inspection of Electrical Connections
To perform a visual inspection of the Xantrex GT250 electrical connections:
Corrective Action
Perform after initial inspection (if required):
1. Correct any necessary repairs pertaining to the previous inspection steps.
2. Replace the latches and close the doors of the inverter enclosure.
3. Ensure that the AC disconnect and DC disconnect switches, as well as any
utility interconnect circuit breaker or main disconnect circuit breaker, are
left open.
1. Ensure that the AC and DC disconnect switches, as well as any utility
interconnect circuit breakers or main disconnect switches, are opened.
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2. Ensure all anchor bolts and any required seismic bracing is properly
tightened and in place.
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3. Remove the latches and open the doors of the AC and DC interface
and inspect.
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4. Verify all wire conduit fittings and connections are properly tightened.
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1. Ensure that the AC disconnect and DC disconnect switches, as well as
any utility interconnect circuit breakers or main disconnect switches,
are opened.
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2. Ensure all conductors and wiring connections interfacing with the
Xantrex GT250 are tightened to the correct torque value.
For specific torque values, see Table A-6 on page A–6 and Table A-7
on page A–6.
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3. Verify the AC power conductors terminated at TB1-A, TB1-B, TB1-C,
and TB1-N within the AC interface are terminated correctly and
properly sequenced.
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4. Verify DC power conductors terminated TB3, as well as TB4 and TB5
within the DC interface are terminated correctly and properly polarized.
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