Distech Controls GS-AQR Hardware Installation Manual page 5

Setup
The menu may be accessed any time after the initial warm-up period. The menu is controlled by using the three buttons on the PCB labeled UP, DOWN
and MENU. All values entered are saved in non-volatile memory and will be restored correctly in case of a power failure.
The menu has several items as shown below. To enter the menu, press and release the <MENU> key while in normal operation. This will enter the
menu step 1, pressing the <MENU> key a second time advances to step 2. Each press of the <MENU> key advances the menu item. The <UP> and
<DOWN> keys are used to make changes to program variables by scrolling through the available options. When a value is changed, use the <MENU>
key to save it to memory and advance to the next menu item. Actual menu displays with the factory default values are shown. If no keys are pressed for
2 minutes, the menu will automatically exit.
<MENU> Press and release the <MENU> key to enter the Setup menu.
1. IAQ Unit
IAQ Unit
ppm
2. IAQ G/F
IAQ G/F
1000 ppm
3. IAQ F/P
IAQ F/P
1500 ppm
4. Analog Output
Analog
Out 5V
5. ASO Good Output
ASO Good
2.5Vdc
6. ASO Fair Output
ASO Fair
5 Vdc
7. ASO Poor Output
ASO Poor
7.5 Vdc
The LCD displays the IAQ sensor reading from 450-2000 ppm. Use <UP> or <DOWN> to change from ppm
(default) to % for 0-100 % display. 0-100% = 450-2000 ppm. This setting has no effect on the LINEAR output
signal, it is always scaled 0-2000 ppm = 0-5/0-10 Vdc.
Press <MENU> to advance.
This sets the trip point from Good to Fair IAQ for the LED and ASO. The factory default is 1000 ppm. Use
<UP> or <DOWN> to change from 700 to 1200 ppm in 25 ppm steps.
Press <MENU> to advance.
This sets the trip point from Fair to Poor IAQ for the LED and ASO. The factory default is 1500 ppm. Use
<UP> or <DOWN> to change from 1300 to 1700 ppm in 25 ppm steps. Note that both IAQ trip points have a
25 ppm hysteresis built in.
Press <MENU> to advance.
The LINEAR analog output signal defaults to 0-5 Vdc. It can be changed with <UP> or <DOWN> to 0-10 Vdc.
The selected scale is always equal to 0-2000 ppm.
Press <MENU> to advance.
This sets the ASO output voltage for the Good range. It can be set using <UP> or <DOWN> anywhere
from 0-10 Vdc. Resolution is 0.1 Vdc. The value is shown on the LCD and the ASO output changes
accordingly. If connected to a damper actuator, positioning is easy.
Press <MENU> to advance.
This sets the ASO output voltage for the Fair range. It can be set using <UP> or <DOWN> anywhere
from 0-10 Vdc. Resolution is 0.1 Vdc and ASO out updates as above.
Press <MENU> to advance.
This sets the ASO output voltage for the Poor range. It can be set using <UP> or <DOWN> anywhere
from 0-10 Vdc. Resolution is 0.1 Vdc and ASO out updates as above.
Press <MENU> to advance.
Continued
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