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IQAir HealthPro 250 Manual

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4.4.2 Filter Life Monitor
The IQAir® system is equipped with an electronic Filter Life Monitor that calculates the remaining life of the sys tem’s
lters. Thanks to the Filter Life Monitor, the user does not have to guess when lters need to be replaced or replace
them at xed intervals (which rarely correspond to the actual amount of use). The Filter Life Monitor watches over
the most important factors affecting the life of the individual lters. The Filter Life Monitor display shows the
remaining life of each individual lters at any given time.
1. To reach the Filter Life Monitor display from the main display win dow,
press the Menu key once. The remaining life of the filter 1 will appear.
2. Press the pkey to view the remaining life of the other lters in the system.
3. The remaining life of the lters is expressed in hours of operation at the
current speed setting and the programmed lter load indices.
How the Filter Life Monitor Works
The basis for the calculation of the remaining lter life is the already elapsed operation time at the set fan speeds and
lter load indices during that period. This input is compared with an internal memory bank which contains infor -
mation about the different lters’ lives under specic conditions of use.
The Filter Life Monitor makes a calculation of the remaining lter life, taking into account not only past use of the
system, but also likely future use. As reference for future use, the lter life monitor uses the fan speed and the lter
load indices which are programmed at the time.
The relationship between the current fan speed, the current lter load indices and the remaining lter life displayed
can be expressed as follows:
•The higher the current fan speed setting, the shorter the displayed remaining lter life.
•The higher the current lter load index setting, the shorter the remaining lter life displayed for the affected lter.
7. Filter Life Reset
Allows the resetting of the lter life counter after replacing a lter
element.
8. Airow Units
Allows to switch the airow units between cfm (cubic feet per minute)
and m3/h (cubic meters per hour).
9. Language
Allows the modication of the display language.
10. Filter Load Index Setting
Allows the modication of the air pollution index, so the system can
calculate the remaining lter life, taking pollution intensity into account.
11. Service Access
This menu is designed for factory access only.
14
Chapter 4 – Using the Control Panel
… 14 …


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