object).
- Never turn on the power supply until all installation work has been
completed.
- Turn on the circuit breaker before test operation extends past 6
hours. / (The crankcase heater will become energized, which will
warm the compressor and prevent liquid compression.)
- For three-phase models, check that the phase is not reversed. / (If
the phase is reversed, the LED on the printed circuit board will
flash.)
- Check that the voltage is 198 V or higher when starting the unit.
(The unit will not operate if the voltage is less than 198V.)
- Carry out test operation for 5 minutes or more using the remote
control or the switch on the outdoor unit printed circuit board.
- Always carry out cooling first during test operation, even during
the warm season. / (If heating is carried out first, problems with
operation of the compressor will result.)
21.2. Test operation from the outdoor unit
(Outdoor unit printed circuit board)
During outdoor unit emergency operation or test operation, the LEDs on the printed circuit
board will flash.
To cancel test operation, press the TEST or RUN button once more while test operation is being
carried out. / (Test operation will stop automatically after 30 minutes have passed.)
NOTE:
1. These units are equipped with connection error prevention
circuits. If the units do not operate, it is possible that the
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