Copyright © 2011, PHONO SOLAR
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Each AC module ID should appear in the order they were detected by the monitoring system.
If any of the AC modules do not appear on the Sentry screen:
o
Verify there is enough visible daylight outside. Solar modules will not report to
the Sentry during night time hours.
o
Verify and record the module IDs of the modules that are reporting to the sentry.
o
Turn the off the breaker(s) in your AC panel and the AC disconnect on the front
of the HelioSentry
®
BEFORE
servicing the AC modules.
o
Using the proper safety precautions, locate the module(s) that are not reporting.
Use the recorded module IDs as a reference.
o
In most cases, improper wire connections are the cause of failing power outputs
from modules. Inspect and re-seat the quick-connector of the modules that are
not reporting, verifying proper alignment and orientation of the connector and
wire.
o
After reseating the connectors follow the module activation sequence.
SERVICE GUIDE
AC Modules contain no user serviceable parts. All troubleshooting and
service work must be performed by qualified service personnel only.
CAUTION!
Some of the components inside the AC Module will store a high-
voltage charge for several minutes after DC and AC power is removed. Take
all necessary precautions to avoid coming into contact with any of the AC
Module internal components when exchanging a unit.
AC Modules are designed to be field-replaceable by qualified service personnel. In the
unlikely event of failure of an AC Module:
AC MODULE REPLACEMENT PROCEDURE:
1) Disconnect all utility AC power from your AC Module system by opening the circuit
breaker connected to that circuit.
2)
Turn the AC disconnect knob to the „OFF‟ position.
3) Lock-out the AC disconnect knob to prevent unauthorized energizing of the circuit.
With a voltmeter or similar test device, verify all power has been removed from your
AC Module system.
4) If work is being done during the day, cover the PV with an opaque cloth or other
material to block the sun from reaching the surface of the PV before removing the AC
Module from the enclosure. High-voltage circuits will remain active without utility AC
power present, and will pose a safety hazard if proper precautions are not observed.
5) Loosen the clamps holding the suspect AC Module to the racking.
6) Lift the PV module up.
