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Forced cooling operation (Only single connection)
The cooling operation can be forcibly performed for collecting refrigerant and inspecting failures.
Do not perform the forced cooling operation continuously for long hours,
because the compressor continues to be in operational status, regardless of room temperature.
＜How to start the operation＞
・The operation of the unit should be stopped.
・Open the front panel of the indoor unit and press and hold the
"Temporary operation SW" shown in the right figure for 5 sec.
＜How to stop the operation＞
・Press and hold the "Temporary operation SW" again.
Or stop the operation using the remote controller.
※During the forced cooling operation,
the "Timer indicator" blinks twice.
When you want to operate the outdoor unit because the indoor unit electrical part has broken down
1. Confirm that the "LD301" blinks once from the terminal side of the outdoor unit. Afterwards (when about 30 sec elapses
after the power turns on), confirm that the "LD301" changes to blinking 9 times (communication error).
2. When the "LD301" is blinks 9 times, if you press the test switch, the "LD301" lights up.
If you release your finger from the test switch within 1 sec to 5 sec after pressing the switch, the forced cooling operation starts.
※(If you press the test switch for 5 sec or longer, the self-check diagnosis starts. In this case, turn the power off and start the procedure from 1 again.)
※(For the initialization of the expansion valve, it may take 1 min until the operation starts.)
3. When you press the test switch again for 1 sec or longer, the unit stops the operation.
RAC-25/35FXB
※Cautions
1． If power is directly supplied to the outdoor unit, the stress is applied to the outdoor unit due to inrush current. Therefore, unless the
indoor unit has broken down, do not use the method.
2． Never operate the unit for 5 min or longer.
When performing the forced cooling operation, turn the power off once. If you press and hold
the switch for 5 sec or longer, the forced cooling operation starts. To stop the forced cooling
operation, press the switch once again or stop the operation using the remote controller.
TEST SWITCH
RAC-50FXB
Temporary operation switch
13ー30
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