SECTION 6PREVENTATIVE MAINTENANCE
PV-225208 Photovoltaic Inverter
Operation and Maintenance Manual
Copyright 2003, Xantrex Technology Inc.
DOCUMENT: 151811 6-2
1. Turn the on/off switch to the off position.
2. Open the DC interface (PV array) disconnect switch.
3. Open the AC interface disconnect switch.
4. Open the isolation transformer circuit breaker.
5. Install lockout devices on the isolation transformer circuit breaker and PV disconnect switch.
TURN-ON PROCEDURE
Refer to Section 3 for a detailed first-time turn on procedure.
1. Remove any lockout devices from the isolation transformer circuit breaker and PV disconnect
switch.
2. Close the isolation transformer circuit breaker.
3. Close the AC interface disconnect switch.
4. Close the DC interface (PV array) disconnect switch.
5. Turn the on/off switch to the on position.
After a 15 second initialization period and a 5 minute wake up period, the PV-225208 will automatically begin
power tracking, given the PV voltage is greater than the PV start voltage setpoint.
Mechanical electrical connections will loosen over time. This is caused primarily by thermal cycling
during normal operation. As connections loosen, electrical impedance will increase at the connection,
eventually leading to fire and component damage. It is critical to check all electrical connections every
six months.
Inductor Enclosure
Access the inductor enclosure and remove any accumulated dirt and debris. Vacuum enclosure
whenever dust or dirt is present.
ISOLATION PROCEDURE
The following procedure should be followed to de-energize the PV-225208 for maintenance:
The terminals of the PV input may be energized if the arrays are energized. In
addition, allow 5 minutes for all capacitors within the enclosure to discharge af-
ter shutting down the PV-225208.
WARNING