![](/images/new-backgrounds/1131911/131911247x1.webp)
2. Processes and functions
2-2 Cold Draft Prevention (Heating Cycle)
2 |
The cold draft prevention function controls indoor fan speed so a strong draft of cold air will not blow out before the indoor heat exchange coils have warmed up.
❑STANDBY shows on the remote controller when the indoor fan speed is LL (very low) or OFF. This condition occurs in the following 3 cases:
•During Thermo OFF (refer to
•During the defrosting operation (refer to
•Until either the coil temperature E2 reaches 81°F or when a maximum of 6 minutes has past.
❑The indoor fan motor operates in L instead of LL for 3 seconds as it starts to give the fan an initial boost.
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| 92 |
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| MAX. 6 MINUTES |
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INDOOR UNIT | 88 |
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| COIL TEMP. |
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| E2 (°F) | 81 |
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| 77 |
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| 50 |
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SET |
| AUTO OR H | LL |
| LL/OFF | LL | L |
| M |
| H | |||
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FAN |
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| M | LL |
| LL/OFF | LL | L |
| M |
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SPEED |
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| L | LL |
| LL/OFF | LL | L |
| L |
| L | ||||
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| “STANDBY” |
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| “STANDBY” APPEARS |
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| INDICATOR |
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| LL= Very low speed |
| M= Medium speed |
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| L= Low speed |
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| H= High speed | 1135_THS_I |
Fig. 3
Chart Summary and Explanations
❑The main idea of this chart is to show that the indoor fan speed increases and gets closer to the set fan speed as the coil temperature E2 rises.
❑The indoor unit’s coil temperature is taken from sensor E2 located in the middle of the indoor heat exchange coil.
❑The dotted line shows that the indoor fan motor is OFF. When the temperature at sensor E2 falls below 50°F, the indoor fan motor stops running.
SM830082
II - 4