Allied A80US2V - Page 10

508155-01Issue 2108Page 10 of 49
Display Action (when button released)
No change (idle)* Remain in idle mode
Solid “E” Enter diagnostic recall mode
Solid “D” Discharge air installed
Solid “F” Enter ame signal mode
Solid “P” (variable speed only) Program unit capacity/size unit (Unit Code)
* No change implies the display will continue to show whatever is currently being displayed for normal operation (blinking decimal,
active error code, heat state, etc.)
Table 4. Integrated Control Diagnostic Modes
Diagnostic LED (Figure 4)
The seven-segment diagnostic LED displays operating
status, target airow, error codes and other information.
Table 5 lists diagnostic LED codes.
Diagnostic Push Button (Figure 4)
The diagnostic push button is located adjacent to the
seven-segment diagnostic LED. This button is used to
enable the Error Code Recall “E” mode, the Flame Signal
“F” mode and “P” the Program Unit Capacity/Size mode.
Press the button and hold it to cycle through a menu of
options. Every ve seconds a new menu item will be
displayed. When the button is released, the displayed item
will be selected. Once all items in the menu have been
displayed, the menu resumes from the beginning until the
button is released.
Error Code Recall Mode
Select ”E” from the menu to access the most recent 10
error codes. Select “c” from the Error Code Recall menu
to clear all error codes. Button must be pressed a second
time while “c” is ashing to conrm command to delete
codes. Press the button until a solid “≡” is displayed to exit
the Error Code Recall mode.
Flame Signal Mode
Select ”F” from the menu to access the ame signal mode.
The integrated control will display the ame current on
seven-segment LED in in micro amps (uA).
Flame signal mode is exited after any of the following:
• Power is reset
• Pressing and holding push button until 3 horizontal
lines “≡” are displayed
• 10 minutes after entering the ame sense mode.
Program Unit Capacity/Size Mode
After the “P” is selected (by releasing the push button)
the integrated control will start ashing the “P” on display
for 90 seconds. If push button is pressed again and held
during that time, the control will start to display characters
corresponding to di󰀨erent variable speed furnace models
for 3 seconds each. While the wanted character-model is
displayed push button has to be released. Selected option
will ash display for 10 seconds and during that time push
button has to be pressed and held for 5 seconds. Once
control accepts new setting it will store data in non-volatile
memory and reset itself. If 10 seconds expires or push
button is held less than 5 seconds, control will exit eld
test mode and go into idle without changing programming
the unit size.