Installation manual

Visual Inspection of Mechanical Connections
152936 4–3
This manual is for use by qualified personnel only.
Visual Inspection of Mechanical Connections
To perform a visual inspection of the Xantrex GT250 E mechanical
connections:
Visual Inspection of Electrical Connections
To perform a visual inspection of the Xantrex GT250 E 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, the AC
and DC Interface Enclosures.
3. Ensure that the AC 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 Inverter Enclosure, the AC
and DC Interface Enclosures 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 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 E are tightened to the correct torque value.
For specific torque values, see Table A-5 on page A–5 and Table A-6 on
page A–5.
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3. Verify the AC power conductors terminated at L1, L2, L3 within the AC
Interface Enclosure are terminated correctly and properly sequenced.
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4. Verify DC power conductors terminated at PV+ and PV- within the DC
Interface Enclosure are terminated correctly and properly polarized.
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