Alarms; Acknowledging/Clearing Alarms; Clearing Alarms; Figure 12 Alarm Screen Breakdown - Bard MULTI-TEC W18AAPA Service Instructions Manual

NOTE: Screenshots shown in this manual reflect
default settings (when applicable).

Acknowledging/Clearing Alarms

Alarm conditions activate a red LED indicator that
backlights the ALARM function key. As an option, an
alarm condition may also be enunciated by an audible
alarm signal. 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)—as shown in Figure 12.
FIGURE 12
Alarm Screen Breakdown
Index Alarm Log Export Variable
0 Al_retain
1 Al_Err_retain_write
2 Al_ReturnAIr1In
3 Al_ReturnAir1High
6 Al_MixedAir1In
7 Al_MixedAir1High
8 Al_MixedAir1Low
18 Al_OutdoorAirIn
19 Al_OutdoorHumIn
36 Al_LowPress1
38 Al_HighPress1
40 Al_Damper1FailedtoOpen
41 Al_Damper1FailedtoClose
48 Al_Freeze1In
50 Al_Freeze1
54 Al_Filter1
92 Al_Offline_THTN_1
93 Al_TempPrb_THTN_1
94 Al_HumPrb_THTN_1
95 Al_ClkBrd_THTN_1

Clearing Alarms

After an alarm condition has been corrected, the alarm
can be cleared/reset.
To clear alarms, press the ALARM key and the UP or
DOWN keys to scroll to the alarm reset screen (see
Figure 13). Hold down the ALARM key for 3 seconds
until the screen flashes. After the screen flashes, if all
alarms are able to be cleared, the screen should read
NO ALARMS. If there are still active alarms, the screen
will show the first indexed alarm.
Alarm Page
Alarm
Date/Time
Alarm Index
Number
Alarm
Description
TABLE 3
Wall-Mount Unit Alarm Index
PGD Displayed Alarm Description
Error in the number of retain memory writings
Error in retain memory writings
Circuit 1 Return Air Temperature Sensor Alarm
Circuit 1 High Return Air Temperature
Circuit 1 Mixed Air Temperature Sensor Alarm
Circuit 1 Mixed Air High Temperature
Circuit 1 Mixed Air Low Temperature
Outdoor Air Temperature Sensor Alarm
Outdoor Air Humidity Sensor Alarm
Circuit 1 Low Pressure
Circuit 1 High Pressure
Circuit 1 Damper Failed to Open
Circuit 1 Damper Failed to Close
Circuit 1 Freeze Temperature Sensor Alarm
Circuit 1 Freeze Condition
Filter 1 Dirty Filter Indicated
Th-Tune Device Offline
Th-Tune Temperature Probe Sensor Alarm
Th-Tune Humidity Probe Sensor Alarm
Th-Tune Clock Board Alarm

ALARMS

FIGURE 13
Clearing Alarms
Manual 2100-665G
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