FILE NO.
Item | Operation flow and applicable data, etc. | Description |
1.Basic 2. Cooling/Heating operation
operation
The operations are performed in the following parts by controls according to cooling/heating conditions.
1)Receiving the operation ON signal of the remote controller, the cooling or heating operation signal starts being transferred form the indoor controller to the outdoor unit.
2)At the indoor unit side, the indoor fan is operated according to the contents of “2. Indoor fan motor control” and the louver according to the contents of “9. Louver control”, respectively.
3)The outdoor unit controls the outdoor fan motor, compressor and
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| Operation ON |
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| Setup of remote controller |
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| Indoor fan motor control / Louver control / Operation Hz |
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| Indoor unit control |
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| Control (Requierment) |
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| Sending of operation command signal |
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| Compressor revolution control / Outdoor fan motor control / |
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| Operation Hz control (Include limit control) |
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| Outdoor unit control |
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| In cooling operation: OFF |
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| [ | In heating operation: ON ] |
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| 3. AUTO operation |
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| 1) Detects the room temperature (Ta) when | |||||
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| Selection of operation mode |
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| the operation started. | ||||||||||
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| 2) Selects an operation mode from Ta in | |||||||||||
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| As shown in the following figure, the operation starts by |
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| selecting automatically the status of room temperature |
| the left figure. | |||||||||||
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| (Ta) when starting AUTO operation. |
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| 3) Fan operation continues until an | ||||||||||
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| *1. When reselecting the operation mode, the fan |
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| operation mode is selected. | |||||||||||
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| speed is controlled by the previous operation mode. | 4) When AUTO operation has started | |||||||||||
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| within 2 hours after heating operation | |
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| Ta |
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| stopped and if the room temperature is | ||
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| Cooling operation |
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| 20°C or more, the fan operation is | ||||||||
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| performed with ”Super Ultra LOW” mode | |||||||
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| Ts + 1 |
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| for 3 minutes. | ||
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| Monitoring (Fan) |
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| Then, select an operation mode. | ||||||||
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| 5) If the status of | |||||||
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| Ts – 1 |
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| continues for 15 minutes the room | |||
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| Heating operation |
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| temperature after selecting an operation | ||||||
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| mode (COOL/HEAT), reselect an | |
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| operation mode. | |
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| 4. DRY operation |
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| 1) Detects the room temperature (Ta) when | |||||
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| DRY operation is performed according to the difference |
| the DRY operation started. | |||||||||||
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| between room temperature and the setup temperature as | 2) Starts operation under conditions in the | ||||||||||||
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| shown below. |
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| left figure according to the temperature | ||||
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| In DRY operation, fan speed is controlled in order to |
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| difference between the room tempera- | ||||||||||
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| ture and the setup temperature (Tsc). | |||||||||||
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| prevent lowering of the room temperature and to avoid air | |||||||||||||
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| Setup temperature (Tsc) | |||||||||||||
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| flow from blowing directly to persons. |
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| = Set temperature on remote controller | |||||||||||
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| [˚C] |
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| (Ts) + (0.0 to 1.0) | |
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| 3) When the room temperature is lower | ||||
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| Ta |
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| L– (W5) |
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| 1°C or less than the setup temperature, | |||||
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| turn off the compressor. | |
| +1.0 |
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| (W5+W3) / 2 |
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| +0.5 |
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| SUL (W3) |
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| Tsc |
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| Fan speed |
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