Hunter HEPAtech 30721 - Filter Life Counters; Locking;Unlocking the Keypad

9 43007-01
Operation
To Lock or Unlock the Keypad:
1. To lock the keypad, press and hold the UP/DOWN keys
simultaneously for 2-3 seconds. The Keypad Locked Indica-
tor will appear on the display. Refer to Fig. 9. After releasing
the keys, the Keypad Locked Indicator will disappear.
2. To unlock the key pad, press and hold the UP/DOWN keys
simultaneously for 2-3 seconds. The Keypad Indicator will
disappear and the keypad will be functional.
Filter Life Counters
The pre-lter and lter are critical to the proper operation of the air purier. To help you
know when to clean or change the lters, your Hunter Air Purier has Filter Life Counters that
will monitor the percentage of life your lter has left. Although the exact life of the lters
depends on the environment, the table below gives typical usage times of the lters.
Table 2: Typical Usage Times of the Filters
Filter Type Typical Usage
Activated Carbon Pre-Filter 1400 hours
HEPAtech® Filter 2800 hours
The display shows the percentage of life left since the counter was reset. NOTE: The per-
centage level drops in 5% increments.
The values of the Pre-Filter and Filter Life Counters are stored in the air purier’s memory.
The unit may be unplugged and moved or stored without losing the Pre-Filter and Filter
Counter values.
To properly track lter usage, the Pre-Filter and Filter Life Counters should be reset each
time the lters are changed or cleaned. Refer to Changing the Pre-Filter (pg. 11) orChang-
ing the HEPAtech® (pg. 12) for instructions on how to reset the counters.
Locking/Unlocking the Keypad
Once you enter the desired speed, you may want to lock the keypad to prevent accidental
changing of the speed. When the keypad is locked, all keys will be disabled. If you press a
key, the Keypad Locked Indicator will be displayed on the screen for 1-2 seconds.
Fig. 9