SiBE041010EA Trial OperationTips for Servicing 962. Trial OperationOutline 1. Measure the power supply voltage and make sure that it falls within the specified range.2. Trial operation should be carried out in either cooling or heating operation.In cooling operation, select the lowest programmable temperature (18°C); in heatingoperation, select the highest programmable temperature (30°C). Trial operation may be disabled in either operation mode depending on the roomtemperature. After trial operation is complete, set the temperature to a normal level.(26°C ~ 28°C in cooling, 20°C ~ 24°C in heating) For protection, the system does not start for 3 minutes after it is turned off.3. Carry out the trial operation in accordance with the operation manual to ensure that allfunctions and parts, such as flap movement, are working properly.Note: The air conditioner requires a small amount of power in standby mode. If the system is not tobe used for some time after installation, shut off the circuit breaker to eliminate unnecessarypower consumption. If the circuit breaker trips to shut off the power to the air conditioner, the system backs up theoperation mode. The system then restarts operation with the previous operation mode whenthe circuit breaker is restored.Detail ARC433 Series(1) Press the [ON/OFF] button to turn on the system.(2) Press the center of the [TEMP] button and the [MODE] button at the same time.(3) Press the [MODE] button twice.(T appears on the display to indicate that trial operation is selected.)(4) Press the [MODE] button and select operation mode.(5) Trial operation terminates in approx. 30 minutes and switches into normal mode. To quit trialoperation, press the [ON/OFF] button.(2)(1) (5)(3)(2) (3) (4) (R19104)