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
filter elements. Thanks to the Filter Life Monitor, the user does not have to guess when filters need to be replaced or
replace them at fixed intervals (which rarely correspond to the actual amount of use). The Filter Life Monitor keeps
track of the most important factors affecting the life of the individual filter elements. The Filter Life Monitor display
shows the remaining life of each individual filter 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 Pre-Filter will appear.
2.
Press the
key to view the remaining life of the other filters in
the system.
3.
The remaining life of the filter elements is expressed in hours of
operation at the current speed setting.
How the Filter Life Monitor Works
The basis for the calculation of the remaining filter life is the already elapsed operation time at the set fan speed. This
input is compared with an internal memory bank which contains infor mation about the different filters’ lives under
specific conditions of use.
The Filter Life Monitor makes a calculation of the remaining filter life, taking into account not only past use of the
system, but also likely future use. As reference for future use, the Filter Life Monitor uses the fan speed which is set at
the time.
The relationship between the current fan speed and the remaining filter life displayed can be expressed as follows:
The higher the current fan speed setting, the shorter the displayed remaining filter life.
7. Filter Life Reset
Allows the resetting of the filter life counter after replacing a filter.
8. Airflow Units
Allows to switch the airflow units between cfm (cubic feet per minute)
and m
3
/h (cubic meters per hour).
9. Language
Allows to switch the display language.
10. Service Access
This menu is designed for factory access only.
13
Chapter 4
– Using the Control Panel
12
Chapter 4
– Using the Control Panel
timer status field
start time
end time
4.4.3 Setting the Auto Timer
The Auto Timer Menu allows the setting of a Timer ON period, which is defined by
a start time and an end time. For the Timer ON period, a fan speed can be selected
in the Timer ON Fan Speed Menu (see 4.4.5). The time outside the Timer ON
period is defined as the Timer OFF period for which the air cleaner can be
switched off or for which a different fan speed can be selected in the Timer OFF
Fan Speed Menu (see 4.4.5).
The timer status field indicates whether the timer function is enabled or disabled.
The timer status field allows to quickly enable/disable the timer e.g. for holiday.
1.
To reach the Auto Timer Menu from the main display window, press the
Menu
key twice.
2.
Press and hold the
Enter
key until the cursor starts to flash.
3.
Press the
key once to activate the timer.
Note:
If the start and stop time are identical, the timer cannot be ac tivated.
4.
Press the
Enter
key to save the timer status setting and to proceed to the
start time.
5.
Select the desired start hour by pressing the
key.
6.
Press the
Enter
key to save the start hour and to proceed to the minute
setting.
7.
Select the desired start minute setting by pressing the
key.
Note:
The minute settings can only be set in five minute increments.
8.
Press the
Enter
key to save the start time and to proceed to the stop time
setting.
9.
Select the desired stop hour by pressing the
key.
10.
Press the
Enter
key to save the stop hour and to proceed to the minute
setting.
11.
Select the desired minute setting by pressing the
key.
12.
Press the
Enter
key to save the minute setting and to exit the enter mode.