ZT16 is only available on the LynxSIA Plus version of the control panel.
1) Enter Installer Code on the panel while disarmed (Default 4112) + 800
2) You Will now see 20 INSTALLER CODE if that was the correct installer code.
3) Press *80
Entering “0” exits mode, upon which this prompt blinks, indicating that the mode is
inactive. Entering “1” advances to the next prompt below.
SELECTIONS
0 = exit mode
1 = enter mode
4) Press *99 After the screen updates to the next field to exit programming
Note: GeoArm can change the installer code upon activation
Follow Install manual for more information: