Installation

REV073019

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• kW LED ON – The inverter/charger is on. The inverter is operating and is able to

provide power to the AC loads. This is the default mode on initial power-up once the

unit is taken out of standby mode.

If the inverter is not operating or the inverter LED (kW) does not turn on, check all connections.

Check the inverter’s DC voltage and polarity on the positive (+) and negative (–) terminals. Check

the Fault LED. If the fault LED is on, check for a fault code on the information panel. Correct the

reported fault and clear the fault by acknowledging it. If the DC voltage is low, then the PHI 3.8

Battery bank needs to be charged externally. Charge the PHI battery bank and restart the functional

test.

AC Voltage Check

1. With the inverter on (green kW LED is on and steady), verify the AC voltage at AC Loads

block terminal L1-Load to N-Load.

2. Verify that neutral is bonded to ground in the system by measuring the hot and neutral

voltages relative to ground. Neutral-to-ground should equal zero (0) volts.

3. After confirming the correct AC voltage, turn on your AC output breaker and place a load on

the inverter (plug in a light or other load to an outlet the inverter is powering).

4. Confirm that the AC load that was just turned on is working properly

Figure 14.0 – Inverter AC Load Display

Confirming Battery Charger Operation

1. Apply AC from grid or generator. LEDs will blink while the power source is qualified.

2. Check LEDs (AC1 or AC2) on the front panel. One of them must be ON for the unit to

charge.

3. Check the amp (A) LED. If the A LED is ON, the unit is charging and the PHI 3.8 Battery

current is displayed on the inverter information panel.