Greenheck Microprocessor Controller (475595 IOM) TAP v2.10 April 2014 (RVE, ERCH-01, ERT-01) User Manual
Page 9
Examples of Alarms
If an alarm occurs, the
button will glow red on the controller and the remote display (if installed).
Examples of Alarms
Outdoor Air Temperature
Sensor Failure
Failure of outside air temperature sensor.
Alarm only
Supply Air Temperature
Sensor Failure
Failure of supply air temperature sensor.
Alarm & Shutdown
Cold Coil Temperature
Sensor Failure
Failure of after cooling coil air temperature sensor.
Alarm only
Room Temperature
Sensor Failure
Failure of room temperature sensor.
(If Unoccupied - Cycle On Room is enabled)
Alarm only
System has exceeded the
set number of run hours
The unit has been operating for a period longer than the
maintenance set point.
Alarm only
Supply airflow
Indicates a loss of airflow in the supply fan.
Alarm & Shutdown
Wheel Pressure
- Dirty Wheel/High CFM
Indicates a buildup of pressure across the energy wheel.
Alarm only
Energy recovery wheel
rotation. Check wheel.
Indicates a wheel rotation failure.
Alarm only
Exhaust Airflow
Indicates a loss of airflow in the exhaust fan.
Alarm & Shutdown
Filter Alarm
Indicates a buildup of pressure across the filters.
Alarm only
A compressor limit
switch has tripped
Indicates a high or low refrigerant pressure switch has tripped.
Alarm only
Supply temperature low
limit alarm
Indicates a supply air temperature lower than the supply low limit
set point.
Alarm & Shutdown
Cold Coil Low Limit
Indicates a cold coil temperature lower than the cold coil low limit
Alarm & discharge air sensor
lockout
pCOe Offline
Indicates communication with pCOe auxiliary I/O has failed.
Alarm only
pCOe - Analog input
probe on channel #
disconnected or broken
Indicates an analog probe failure on the pCOe. Check integrity of
auxiliary I/O analog probes.
Alarm only
Building Pressure Sensor
Failure
Failure of building pressure sensor
Alarm & minimum fan speed
Duct Pressure Sensor
Failure
Failure of duct pressure sensor
Alarm & minimum fan speed
Room Humidity Sensor
Failure
Failure of room RH sensor
Alarm only
Outdoor Air Humidity
Sensor Failure
Failure of outdoor air humidity sensor
Alarm only
CO2 Sensor Failure
Failure of CO2 sensor
Alarm & minimum fan speed
To view alarm, press the
button once. This will display the most recent alarm.
Press the
button again to reset the alarm. If the alarm cannot be cleared,
the cause of the alarm has not been fixed. Press the
buttons to view any
additional occurring alarms.
Alarms
Press DOWN to review
current alarm(s).
Press ESC to exit.
Press ALARM to reset.
This is an example of an outdoor air sensor failure.
Outside Air Temperature
Sensor B01 Failure
This screen appears if there are no active alarms.
To view all saved alarms, press the
button to enter the DATA LOGGER. For
more information, see the Data Logger menu.
Alarms
No active alarm
Press
ENTER
to
DATA
LOGGER
9
DDC Controller for Tempered Air Products
®