TM-9-2350-277-10

CARRIER, M113A3, M577A3, M1059A3, M1064A3, M1068A3 AND M58

TECHNICAL MANUAL; OPERATOR’S MANUAL

TM-9-2350-277-10 - Page 523 of 889

TM 9-2350-277-10

OPERATE OUTBACK INVERTER (M1068A3 ONLY) — Continued

0086 03

NOTE

During operations, the inverters can be operated while using external AC power. Switching

between external AC power and the inverters is automatic. There will be a popping noise

when this occurs.

1.

Ensure INVERTER CONTROL switch is in the OFF position.

2.

Turn MASTER SWITCH to ON (WP 0021 00). The turbo fan on each inverter will be on.

3.

Check DC volts meter. It should read 21 volts or above.

4.

Switch INVERTER CONTROL switch to PRIMARY A or PRIMARY B. If PRIMARY A is turned ON; the “A” LED

will come on solid to show it is working, 5 seconds later inverter “B” will turn and the “B” LED will come on solid.

NOTE

If INVERTER CONTROL LAMP illuminates, skip Step 5.

5.

If popped out, push and engage DC TO INVERTERS circuit breaker.

6.

Check INVERTER CONTROL LAMPS A and B to ensure they light. If either lamp fails to light or is blinking, record,

and move INVERTER CONTROL switch to the OFF position. Refer to troubleshooting (WP 0089 00).

7.

Switch AC INVERTERS circuit breaker to the ON position to control 110 VAC power output of the inverters to the

M1068 power system. Check that inverter power LED is ON. Turn AC volts meter select switch to INVERTERS.

Meter should read between 115–120 VAC.

0086 03-2

Change 5