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Operation
Filter Life Counters
The
Table 2: Typical Usage Times of the Filters |
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| Filter Type | Typical Usage |
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| Activated Carbon | 2000 hours |
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| HEPA Filter | 8000 hours |
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The display shows the percentage of life left since the counter was reset. NOTE: The percentage level drops in 5% increments.
The values of the
Filter and Filter Counter values.
To properly track filter usage, the
Locking/Unlocking the Keypad
Once you enter the desired speed, you may want to lock the keypad to prevent changing of the speed. When the keypad is locked, all keys will be disabled. If you key, the Keypad Locked Indicator will be displayed on the screen for
To Lock or Unlock the Keypad: |
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1. | To lock the keypad, press and hold the UP/DOWN keys |
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| simultaneously for |
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| dicator will appear on the display. Refer to Fig. 6. After |
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| releasing the keys, the Keypad Locked Indicator will dis- |
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| appear. |
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2. | To unlock the key pad, press and hold the UP/DOWN | Fig. |
| keys simultaneously for |
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| cator will disappear and the keypad will be functional. |
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