36
SYSTEM OPERATION
LEFT
CENTER
RIGHT
Press then Release
2. Press and release the Right Button (This will cycle
through the menus in one direction). Pressing the
Left Button would cycle through the menus in the
opposite direction. For this example, the right button
will be used).
3. The screen will now display Menu L6F (Last 6 Faults).
Continue pressing and releasing the Right Button
until you see FSd which is the menu for Constant
Fan Multiplier. Before reaching the FSd menu you
will scroll through Menus L6F, Lm, Cr, Sr and rFd.
LEFT
CENTER
RIGHT
Press then Release
4. Press and release the Center Button. The center
button is used to enter menus and make selections
within menus.
5. What will be displayed is the currently selected fan
only percentage. For this example the assumption
is that this currently selected fan only percentage is
25% and changing this to 45% is the objective.
6. Press and Release the Right button. The screen will
change to 35 and start flashing. The flashing indicates
the displayed option has not been selected yet.
7. Press and Release the Right button again. The 7
segment displays will continue flashing but will now
display 45.
LEFT
CENTER
RIGHT
Press then Release
1. Press and Release the Center Button again. The
45 being displayed will stop flashing. To then
complete the selection process and make 45 the
official fan only setting Press and Release the
Center Button for the last time. This final step will
jump the user back to the main menu list and FSd
will be displayed again.
2. The constant fan multiplier has now been
changed from 25 to 45
Airflow Display
When the blower is running the CFM will be displayed in
Status Menu. The first 7 segment character will display
“A”. The second & third characters will display the actual
CFM divided by 100. The actual CFM will display rounded
up or down to the nearest 100 CFM as follows;
· 550 to 649 CFM display as “
A06
”
· 1150 to 1249 CFM display as “
A12
”
Alarm Display
If an active alarm is present, the alarm code shall be
reported in Status Menu starting with “E” and following
with the appropriate two digit alarm code.
Clearing Faults
While in the Last 6 Faults option menu, push & hold the
center button for 5 seconds. This will clear all non-active
alarm(s) in the Last 6 Faults menu. The display will flash
three times to confirm faults have been cleared.
Learn Menu
Using this option resets the communicating network
which will cause the furnace to discover what devices
are present on ClimateTalk™ network. This menu will
not appear when the furnace control is connected to a
Non-Comm OD unit.
Code Release Number Menu
This is a reference only menu to display the firmware
release revision numbers for each micro-controller.
