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| FILE NO. |
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| Item |
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| Operation flow and applicable data, etc. |
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| Description | ||||||||||||
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2. Indoor fan | <In heating operation> |
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| 1) When setting the fan speed to L, | |||||||||||||||||
motor control |
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| L+, M, M+ or H on the remote | |||||||
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| controller, the operation is per- | ||
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| formed with the constant speed | ||
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| HEAT ON |
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| shown in Fig. 3 and Table 1. | ||
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| 2) When setting the fan speed to | |||
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| AUTO on the remote controller, | ||
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| MANUAL |
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| revolution of the fan motor is | ||||||
Fan speed setup |
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| (Fig. 3) |
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| controlled to the fan speed level | ||||
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| shown in Fig. 5 according to the set | ||
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| Indication |
| Fan speed |
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| temperature and room temperature. | ||||||||
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| 3) Min air flow rate is controlled by | |||
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| L |
| W8 |
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| temperature of the indoor heat | ||||||||||
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| L+ |
| (L + M) / 2 |
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| AUTO |
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| exchanger (Tc) as shown in Fig. 4. | ||||||||||||
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| M |
| WA |
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| 4) Cold draft prevention, the fan | ||||||||||||
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| M+ |
| (M + H) / 2 |
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| speed is controlled by temperature | ||||||||
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| of the indoor heat exchanger (Tc) | ||
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| H |
| WE |
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| as shown in Fig. 6. | ||||||||||
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| YES |
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| 5) In order to prevent cold draft when | |||
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| TC ≥ 42˚C |
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| compressor stop during heating | ||||
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| Min air flow rate control |
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| operation. Then louver will move to | ||
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| NO |
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| upper position and fan speed will | ||||
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| Tc |
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| Limited to Min WD tap |
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| reduce or off. | |||||||
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| 52 |
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| 42 |
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| 41 |
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| No limit |
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| * Fan speed = |
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| (Fig. 4) | (TC |
| W8) + W8 |
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| Cold draft preventive control | |
Basic fan control |
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| Fan speed |
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| Tc |
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TA [ C] |
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| AUTO |
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b |
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| 46 | 46 | 34 |
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TSC |
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| L+ (W9) | 45 | 45 | 33 |
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c |
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| d |
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| *1 |
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| 32 | 32 | 20 |
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e |
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| *2 |
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| *A+4 | *A+4 | *A+4 |
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f |
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| *3 |
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| SUL (W2) | ||||||||||||||
g |
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| Stop | |||||||||||||||
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| M+ (WD) |
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| Fan speed MANUAL in starting | ||||||
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| Fan speed AUTO in stability | |
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| H (WE) |
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| Fan speed AUTO in starting | |||||
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*1: Fan speed = (M +
*2: Fan speed = (M +
*3: Fan speed = (M +
(Calculated with linear approximation from M+ and L+)
*No limitation while fan speed MANUAL mode is in stability.
*A: When Tsc ≥ 24, A is 24, and when Tsc < 24, A is Tsc
Tsc: Set value
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| (Fig. 5) |
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| [In starting and in stability] |
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| In starting |
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| • Until 12 minutes passed after operation start | • | When 12 to 25 minutes passed after operation start |
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| FAN AUTO | • When 12 to 25 minutes passed after operation |
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| start and room temp. is 3°C or lower than set temp. | • | When 25 minutes or more passed after operation start |
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| FAN Manual | • Room temp. < Set temp. | • Room temp. ≥ Set temp. |
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– 29 –