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9-5. EMERGENCY OPERATION
9-5-1. When wireless remote controller troubles or its battery is exhausted
1. Emergency operation is available in such a case using emergency operation switch equipped next to the receiver of indoor
unit.
2. To start operation
• Cooling Operation·······Press (Cooling) switch.
•
Heating Operation·······Press (Heating) switch.
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When the unit starts operating, the operation lamp is lit.
9-5-2. When wired remote controller or indoor unit micro computer troubles
1. If there is not any other wrong when trouble occurs, emergency operation starts as the indoor controller board switch (SWE)
is set to ON.
During the emergency operation the indoor unit is as follows;
(1) Indoor fan high speed operation
(2) Drain pump operation
2. When emergency operating for COOL or HEAT, setting of the switch (SWE) in the indoor controller board and outdoor unit
emergency operation are necessary.
3. Check items and notices as the emergency operation
(1) Emergency operation cannot be used as follows;
• When the outdoor unit is something wrong.
• When the indoor fan is something wrong.
• When drain over flow protected operation is detected during self-diagnosis. (Error code : P5)
(2) Emergency operation will be serial operation by the power supply ON/OFF.
ON/OFF or temperature, etc. adjustment is not operated by the remote controller.
(3) Do not operate for a long time as cold air is blown when the outdoor unit starts defrosting operation during heat emer-
gency operation.
(4) Cool emergency operation must be within 10 hours. Other wise, heat exchanger of indoor unit may get frosted.
(5) After completing the emergency operation, return the switch setting, etc. in former state.
(6) Since vane does not work at emergency operation, position the vane slowly by hand.
Receiver
Operation lamp
Emergency operation switch (cooling)
Emergency operation switch (heating)
3. To stop operation
• Press either emergency operation switch (cooling/heating).
Mode
Cooling
Heating
Set temperature
Fan speed
Airflow direction
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:
High
Downward (70deg)
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:
High
Horizontal (30deg)
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Emergency operation will be performed as follows.
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