QD-ENG-68 Rev0 7/12/16
4
Press “
SELECT
” to continue the setting.
and
icons appear on the screen, indicating the setting for low
temperature alarm. The alarm will activate at this temperature and will automatically reset at two degrees Fahrenheit (or
one degree Celsius) above this temperature. Press the “
+
” or
“-
” button to change the alarm setpoint within a range of -
31ºF (-35ºC) to 7º F (4ºC) below the 'heating on' set point.
Press “
SELECT
” to continue the setting. When
and
appears on the screen, the display will show the temperature at
which all fans will be running at full speed. Press the “
+
” or “
-
“ key pads to change the high speed set point within a range
from the ‘cooling on set point’ to 72°F (30°C) above ‘cooling on set point’.
Press “
SELECT
” to enter the alarm function setting. The screen shows the current status of the alarm. When “off” is shown
on the screen, all the alarm functions will stop. Press “
+
” or “
-
” to change the alarm switches accordingly. If the “OFF” mode
is selected, no alarms will activate and the audible on/off select function is skipped.
Press “
SELECT
” to enter the audible alarm setting. When
or
is lit, “on” or “off” will appear accordingly on the LCD
screen to show the status of the audible alarm. Press “
+
” or “
-
” to toggle the mode as desired.
Press “
SELECT
” to enter the temperature unit setting. Press “+” or “-” to select the desired temperature unit of Fahrenheit
or Celsius.
Press “
SELECT
” to continue. T
he display shows “PIN”.
If you need to set a new pin code, press “
+
” on the key pad.
When “0” shows on the screen, the controller is ready to accept the new pin code. Use the keys “
+
”, “
-
”, “
SELECT
” and
“
EXIT
” to reset a new 4-digit pin code. (The four keys can be set as pin code in any order). When the first key is pressed
on the key pad, the controller display shows -1-, indicating the first digit of the pin code has been entered. Numbers -2-, -
3-, and -4- are displayed sequentially after pressing the other keys. When the fourth-digit of the pin code is entered, the
controller will move on to the next step of the programming. If the fourth pin code is not entered within 60 seconds, the
system will log out automatically. The pin code setting fails and the system will continue to use the previous pin code.
*** CAUTION***
Always record the selection sequence (PIN code) and store in a secure place.
Press "
SELECT
” to continue. The
and
icons are displayed and the filter maintenance reminder setting is shown.
Press “
+
” or “
-
” to change the alarm setting. Its setting range is 0-180 days.
Programming 0 days will disable the alarm.
NOTE: The required number of days to set this alarm will be determined by the ambient air conditions. The
filter alarm should be set to “0” to disable the filter alarm for systems that do not have a filter.
Press “
SELECT
” to enter the communication address setting. The LCD screen is will show the current communication
address. Press “
+
” or “
-
” to change the address value within range of 1-255. The factory setting of the communication
address is 1. This function is not available for certain models.
Programming of the controller is now complete. Press the
“SELECT
” button to review all of the settings. Press the
“EXIT
” button to enter the selected settings and to return to the normal operating mode.
NOTE: If “EXIT: button is not pressed, any changes to the program will NOT be saved.
Recovering the Factory Settings
In order to recover the default factory settings in the controller, press 442213 under the normal operation condition. When
the LCD screen shows “---” for 3 seconds, the controller restarts. Then the controller parameters are set back to factory
default settings.
