Example Of Alarms - Greenheck 474706 Reference Manual

If an alarm occurs, the
Alarms
Press DOWN to review
current alarm(s).
Press ESC to exit.
Press ALARM to reset.
Outside Air Temperature
Sensor B01 Failure
Alarms
No active alarm
Press ENTER
to DATA LOGGER
Outdoor Air Temperature
Sensor Failure
Supply Air Temperature
Sensor Failure
Cold Coil Temperature
Sensor Failure
Room Temperature
Sensor Failure
System has exceeded the
set number of run hours
Supply airflow
Wheel Pressure - Dirty
Wheel/High CFM
Energy recovery wheel
rotation. Check wheel.
Exhaust Airflow
Filter Alarm
A compressor limit
switch has tripped
Supply temperature low
limit alarm
pCOe Offline
pCOe - Analog input
probe on channel #
disconnected or broken
®
Examples of Alarms
button will glow red on the controller and the remote display (if installed).
Prg Esc
To view alarm, press the
alarm. Press the
cleared, the cause of the alarm has not been fixed. Press the
view any additional occurring alarms.
This is an example of an outdoor air sensor failure.
This screen appears if there are no active alarms.
To view all saved alarms, press the
more information, see the Data Logger menu.
Examples of Alarms
Failure of outside air temperature sensor.
Failure of supply air temperature sensor.
Failure of after cooling coil air temperature sensor.
Failure of room temperature sensor.
(If UnOccupied - Cycle On Room is enabled)
The unit has been operating for a period longer than
the maintenance set point.
Indicates a loss of airflow in the supply fan.
Indicates a buildup of pressure across the energy
wheel.
Indicates a wheel rotation failure.
Indicates a loss of airflow in the exhaust fan.
Indicates a buildup of pressure across the filters.
Indicates a high or low refrigerant pressure switch
has tripped.
Indicates a supply air temperature lower than the
supply low limit set point.
Indicates communication with pCOe auxiliary I/O has
failed.
Indicates an analog probe failure on the pCOe.
Check integrity of auxiliary I/O analog probes.
button once. This will display the most recent
Prg Esc
button again to reset the alarm. If the alarm cannot be
Prg Esc
Prg Esc
button to enter the DATA LOGGER. For
DDC Controller for Tempered Air Products
Prg Esc
Prg Esc
buttons to
Alarm only
Alarm & Shutdown
Alarm only
Alarm only
Alarm only
Alarm & Shutdown
Alarm only
Alarm only
Alarm & Shutdown
Alarm only
Alarm only
Alarm & Shutdown
Alarm only
Alarm only
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