Operation; Unit On/Off; Alarm Adjustment; Acknowledging Alarms - Bard MEGA-TEC W090A Service Instructions Manual

OPERATION

Unit On/Off

The wall-mount unit can be turned on and off from
the TEC-EYE. Turning the unit off with the following
instructions will disable all unit operation.
To turn the unit on or off:
1. Press MENU key to go to the Main Menu screen.
2. Press UP or DOWN keys and ENTER key to enter
USER password 2000.
3. Press UP or DOWN keys to scroll to On/Off; press
ENTER key.
4. Press UP or DOWN keys to change value from On
to Off or from Off to On.
5. Press ESCAPE key several times to return to Main
Menu screen.
The wall-mount unit may also be turned off by
certain events such as the unit disable input, blower
offline, fan offline, panel switch open or the return air
temperature sensor failure when not connected to the
LC6000.
The unit will also be turned off if the unit loses
communication with the expansion board, blower
motor, condenser fan motor or panel switch for blower
or condenser fan compartment.

Alarm Adjustment

Acknowledging Alarms

On the standard TEC-EYE included with the LC6000
controller (Bard P/N 8301-159), alarm conditions are
enunciated by an audible alarm signal. On the larger
TEC-EYE (Bard P/N 8301-053), alarm conditions
activate a red LED indicator that backlights the ALARM
function key. An alarm is acknowledged by pressing the
ALARM key. This calls up alarm display screen(s) that
provide a text message detailing the alarm condition(s).

Clearing Alarms

Alarms can only be cleared after the alarm condition
has been corrected. To clear a single alarm, press and
hold the ALARM key for 3 seconds while viewing a
specific alarm screen. To clear all alarms, navigate to
the screen at the end of the alarm list (shown in Figure
10) and press and hold the ALARM key for 3 seconds.
Manual 2100-671C
Page 12 of 59
FIGURE 10
Clearing All Alarms

Clearing Alarm Logs and Counters

To clear the alarm log and alarm counters:
1. Press MENU key to go to the Main Menu screen.
2. Use UP or DOWN keys and ENTER key to enter
USER password 2000.
3. Press UP or DOWN keys to scroll to Settings; press
ENTER key.
4. Press UP or DOWN keys to scroll to Initialization;
press ENTER key. (Alarm intialization screen will
be displayed.)
5. Press ENTER key to scroll to Delete alarm logs?
(see Figure 11).
6. Press UP or DOWN key to change value to YES;
press ENTER key.
7. Press ENTER key to scroll to Clear AutoReset
counters?
8. Press UP or DOWN key to value to YES; press
ENTER key.
FIGURE 11
Clearing Alarm Logs and Counters

Exporting Alarm Logs

See latest version of Supplemental Instructions manual
7960-825 for information on exporting alarm logs.