57
You can also navigate to the Alarms menu at any time.
Clearing Alarms
Once the alarm has been identified and the cause has been re-
moved (e.g. replaced faulty sensor) the alarm can be cleared
from the display.
To clear an alarm, perform the following:
1. Navigate to the desired alarm.
2. Press the (Enter) button. ERASE? displays.
3. Press the (Enter) button. ALARM ERASED displays.
4. Press the (Menu up/Exit) button to complete the
action and return to the previous menu.
NOTE: If the alarm still exists after clearing it, it is redisplayed
within 5 seconds.
Staged Air Volume (SAV™) with Variable Fre-
quency Drive
The Staged Air Volume (SAV) system utilizes a Variable Frequen-
cy Drive (VFD) to automatically adjust the indoor fan motor
speed in sequence with the unit’s ventilation, cooling and heating
operation. Per ASHRAE 90.1-2016 standard, during the first stage
of cooling operation the SAV system will adjust the fan motor to
provide 66% of the design airflow rate for the unit. When the call
for the second stage of cooling is required, the SAV system will al-
low the design airflow rate for the unit established (100%). During
the heating mode, the SAV system will allow total design airflow
rate (100%) operation. During ventilation mode, the SAV system
will operate the fan motor at 66% speed.
See Fig. 64 and 65 for Variable Frequency Drive and its location.
Fig. 64 — Variable Frequency Drive (VFD)
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