1.800.627.4499
Premium Commercial Controls
ERV
80
TROUBLESHOOTING
9.1.5.5 Filter Alarms
NUMBER
NAME
STATUS SHOWN
MEANING
60
Al_OA_Flt_Press
Auto reset
OA Filter Pressure Alarm
61
Al_RA_Flt_Press
Auto reset
RA Filter Pressure Alarm
Alarm Numbers 60–61:
Filter Alarms
These alarms occur when the pressure exceeds the OA Level or the RA Level as set in the
Alarm
Settings
.
For more information refer to Pressure Drop Charts in the unit specific IOM.
To resolve the alarms, change the filter. If the alarm is still active, verify that the reading
is as expected in the
Unit Status
. If not, check that someone has not changed the pressure
transducer range in the
I/O Configuration
. Also check the offset or override for the sensors.
9.1.5.6 Maintenance Alarms
NUMBER
NAME
STATUS SHOWN
MEANING
62
Al_UnitLife
Auto reset
Unit Service
Threshold Reached
64
Al_SupplyFanLife
Auto reset
Supply Fan Service
Threshold Reached
65
Al_ExhaustFanLife
Auto reset
Exhaust Fan Service
Threshold Reached
Alarm Numbers 62–65:
Maintenance Alarms
These alarms occur when the number of run hours reaches the thresholds set in the
Advanced
Service
. A typical screen is shown here.
Refer to the
Advanced Service
for more information on these settings.
