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CONTROL BOARD FUNCTIONS
Control Interface
System Reset:
• Remove power from the control for at least 10 seconds.
Auto Restart:
• After the auto restart timer expires, the control will get out
of the lockout state and automatically reset by performing
the power up initialization and monitoring thermostat
requests.
Interface Option Menu
The interface consists of an LED display where two switches
are provided to navigate through the menu.
Main Switch and Option
Main switch is used to browse the main menu and the Option
switch to browse the option menu.
• When the main switch is pressed, the display will show
the next available menu in the sequence.
• While in the main menu, press the option switch to scroll
through the available options.
• While in the option menu, the selected option or default
option if not selected will be displayed first and the other
available option are displayed in order.
• The 1st value is the default when multiple options are
available.
• While navigating in the menu option, the current displayed
option is selected by pressing the main switch. The
display will then go back to the main menu its currently in.
• When navigating from the last available option, the control
will display the corresponding main menu, then display
the selected option or default option, then the next option
for each key pressed.
• While in any menu other than the Status Menu, after
30 seconds of inactivity the display will go to the Status
Menu automatically and the currently displayed option is
NOT considered to be selected.
• Changes made while in operation or in alarm condition,
the selected option will become effective on the next valid
call of operation.
• At power up, the control will display “8.”,”8.”, and “8”. until
control is ready to respond to demands, then go to the
Status Menu.
Reset to Factory Default
• The reset to factory default function is allowed while the
control is in any operation or idle state
• The reset to factory default parameters will only take
effect on the next call of operation.
• Any active alarms will not clear after a factory reset
• Factory reset is allowed at the Status Menu except when
fault erase is requested from the last 6 faults and the fault
erase is in progress.
If both the Menu and Option switch are pushed and held
for more than 5 seconds and less than 30 seconds, the
control will reset to the factory default values, clear the
alarm(s) in Last 6 Fault menu and Flash “F” and “d” three
times to indicate a successful factory reset. The control
will then go back to the Status Menu. If any alarm is still
active, the active alarm will remain in the Last 6 Fault
Menu.
When the blower motor is running,”tP” is displayed
following with the Tap number. For instance, If the blower
motor has been set for Tap 4, “tP4” will be displayed.
If an alarm is detected, the error coded is displayed starting
with “E” followed with the two digit error code. For instance
“E3.4” would correspond to Pressure switch #2 opening
during the heat cycle.
Active Alarm Menu
• To Navigate from the status menu to the active alarm
menu, press the MENU button once. Then push OPTION
to navigate through the alarm(s).
• A maximum number of 4 alarms are included in this
menu.
• When the Alarm(s) is active, the alarm(s) are saved into
Last 6 Faults Menu
• The alarm(s) are stored in the sequence they occur.
• If the total number alarms exceed the max alarms that
can be stored, the oldest alarm is pushed out from the
active Error menu at first.
Last 6 Faults Menu
• To Navigate from the status menu to the active alarm
menu, press the Menu button once.
• To review the options, press the option button to browse
the last 6 faults stored.
• A maximum number of 6 alarms are included in the menu
• The alarm(s) are stored in the sequence they occur.
• If the total number alarms exceed the max alarms that
can be stored, the oldest alarm is pushed out from the
Last 6 Faults Menu
• The Last 6 Faults Menu is updated when the option
button is pressed to display the next fault.
• While in the Last 6 Faults Menu, the option button can be
held for more than 5 seconds and less than 30 seconds
to clear all alarm(s) in the Last 6 Faults Menu.
• The display will flash ”_”,”_”, and _” three times to indicate
the alarm(s) are removed and the display will go back to
the Last 6 Faults menu.
Configuring The Blower
The fixed speed high efficiency blower kit is equipped with a
microprocessor control which is designed to provide a variety
of system airflows and comfort options. Before operation,
the fixed speed high efficiency blower must be configured to
match the unit with the system, system options, and climate
conditions.
IMPORTANT NOTE:
The fixed speed high efficiency blower kit is designed to
give the installer maximum flexibility to optimize system
performance, efficiency, and comfort. Because there are
so many way to configure the kit, it is important to read
and follow these instructions carefully.
Selecting Cooling for 1st or 2nd Stage and Blower
Speed Selection
NOTE:
Power must be applied to the board or the unit can
be functioning to change the blower speed.
NOTE:
The installer will have to review the blower tables
(
,
speed to match the outdoor unit.
• When the furnace does not have a call for heating,
cooling or fan, the 3 digit display will show “1dL” which
means “idle”.
• Press the MENU button, the control will show the options
on the display. Keep pressing the MENU button, the
options are: Err-L6F-Cr-Cod-OdU-HOd-COF-COP-HtP-
RUN.
