Menu Key
The Menu key allows access to any one of ten menus. Pressing the Menu key once allows access to the rst menu
function. Pressing the Menu key twice allows access to the second menu function, and so on. If no key is pressed for
15 seconds in a menu window, the display will revert to the main display window. Tip: If you are in a menu window
and would like to remain in the window for more than 15 seconds, keep the p key depressed.
Enter Key
The Enter key, if pressed for 3 seconds, allows the modication of a setting. The enter mode is indicated by a ashing
cursor on the modiable setting. Pressing the Enter key again will save any entry and move the cursor to the next
modiable item in the display window. When the last modiable choice in a window is conrmed with the Enter key,
the enter mode is automatically terminated and the new settings are saved.
Filter Life LEDs
Whenever the system is on, the color of the lter life LEDs (light emitting diodes) indicates the state of the in di vidual
lters in the system. Note: The positions of the lter life LEDs on the control panel correspond to the actual positions
of the lters within the system.
The lter life indicator LEDs signal four possible stages in the life of the lter:
1. Green: The lter is still within 80% of its estimated life span.
2. Orange: The lter is approaching the last 20% of its estimated life span.
3. Red: The lter has reached the end of its estimated life span.
4. Red (blinking): The lter has passed its estimated life span and should be replaced immediately. The IQAir
system’s effectiveness is likely to have been reduced dramatically, either due to a reduction in
airow (particle lters are clogged) or a reduction in lter efciency (gas phase lter is saturated).
Fan Speed LEDs
These LEDs simulate the fan speed through the frequency of their rotation. The faster the rotation of the fan speed
LEDs, the faster the actual fan speed of the system.
4.2 Control Panel Locking Function
The control panel keys can be locked to avoid tampering with the settings.
To lock or unlock the control panel keys, both the Menu and the Enter key
have to be pressed down simultaneously for 3 seconds. The acti vated
locking function is indicated with a star symbol in the control panel
display. The remote control will still operate the IQAir system when the
locking function is activated, only the control panel keys are locked.
4.3 Fan Speed and Air Delivery
The IQAir system can be set to run at six different fan speeds, which
correspond to six different airow rates. Speed 1 is the lowest speed. Speed 6 the highest fan speed. The higher the
fan speed, the more room air will be ltered by the system. The high fan speed settings provide additional air
cleaning power to deal with situations of elevated pollution levels.
To allow better evaluation of the system’s performance at different fan speeds, the standard display window shows
not only the fan speed, but also the air delivery rate (airow). The displayed airow is factory preset and is not
measured by the system itself. (When Timer is activated, the display will change. Refer to section 4.4.6.)
4.3.1 Regulating Fan Speed
1. When the IQAir system is switched off (standby mode), the rst line of the
LCD display shows the model name. To switch the system on, press the
Power key on the far left of the control panel.
2. The LCD now displays the fan speed and the corresponding airow rate.
Note: The system starts at the fan speed at which it was running when it
was last used.
3. To change the fan speed, press the p key.
10
Chapter 4 – Using the Control Panel
