SERVICING
35
MODE DISPLAY INTRODUCTION
SEG1
SEG2
SEG3
TEST
RECALL
LEARN
A 3-digit display is provided on the Control board
as a backup tool to the thermostat for reading faults, fault history,
monitoring and setting up the unit. Follow the information
provided in this section to learn how to use the mode display.
DISPLAY
The display consists of 3 digits.
DISPLAY BUTTON LAYOUT
The display buttons shown can be used to navigate and select items:
MODES
There are 5 modes which can be accessed using the setting display:
and
To enter any of these modes, use the schemes shown in this section. Each mode has its
own corresponding “Screen #” within the display itself which allows the user to navigate
and use the features. (Example: The Fault Code is accessed and displayed from
“Screen 0” of the 7-segment display. The Fault History is accessed and display using
“Screen 1” of the display, etc.)
FAULT CODE, FAULT HISTORY, MONITORING, SETTING MODE 1
SETTING MODE 2.
MODE
Fault Code Display
Fault Code History
Monitoring Mode
Setting Mode 1
Setting Mode 2
FUNCTION
Present fault (if any).
6 Recent faults stored.
*Monitors system values.
*Can change system
*Can change system settings.
settings
DISPLAY SCREEN #
0 (Default)
1
2
3
4
OFF
ON
Blink interval: 0.4 sec. On - 0.4 sec. Off
*See tables at the end of this section.
TEST
RECALL
LEARN
OR
Examples of button layout are shown above.
Identify correct display buttons on your unit Control board.
SETTING THE MODE DISPLAY
