Emerson Liebert iCOM Manual De Usuario
Service Menu Parameters
167
Liebert
®
iCOM
®
SA07 Stop ECO at Setpoint + —Sets the temperature when the Liebert Air Economizer will be
disabled due to an increasing outdoor air temperature. This parameter is added to the return air
sensor setpoint and then compared to the outdoor temperature reading. If the outdoor temperature
reading exceeds the return air temperature setpoint plus this parameter, the Liebert Air Economizer
will be disabled. This is factory-set at 20°F (-6.7°C).
SA08 Economizer Mode—Displayed when the Liebert Air Economizer is available for use.
SA09 Dew Point (calculated)—Displays the actual outdoor dew point based on the outdoor sensor.
SA10 Economizer Override At—Sets the indoor temperature when the Liebert Air Economizer
SA08 Economizer Mode—Displayed when the Liebert Air Economizer is available for use.
SA09 Dew Point (calculated)—Displays the actual outdoor dew point based on the outdoor sensor.
SA10 Economizer Override At—Sets the indoor temperature when the Liebert Air Economizer
™
will be locked out. Even when all other parameters are satisfied, the Liebert Air Economizer will be
locked out when the return air temperature sensor reads this value.
SA11 Delay After Fan Start—Sets the delay from the time the unit has been started until the
SA11 Delay After Fan Start—Sets the delay from the time the unit has been started until the
ECO EMERGENCY OVERRIDE can be triggered. This allows airflow to pass over the sensors to get
an accurate reading before any emergency modes are activated.
Figure 161
Economizer, page 2 of 3
SA13 Local Outdoor Air Temperature—Actual outdoor temperature from the sensor connected to
the unit.
SA14 Local Outdoor Air Humidity—Actual outdoor humidity from the sensor connected to the
SA14 Local Outdoor Air Humidity—Actual outdoor humidity from the sensor connected to the
unit.
SA15 Outdoor Sensor C Connected—The default selection for units without air economizer is No.
SA15 Outdoor Sensor C Connected—The default selection for units without air economizer is No.
The default selection for unit with air economizer is Yes. When set to Yes, the unit uses the locally
installed outdoor air temperature and humidity sensor to help determine air economizer eligibility.
Setting the parameter to No on air economizer units will prevent the locally installed air economizer
sensor from being used in the eligibility calculation when SA16 Outside Air Sensor is set to Shared.
SA16 must be set to Shared before changing the parameter to No.
SA16 Outdoor Sensor Operation—The parameter may be set to Local or Shared. The factory
SA16 Outdoor Sensor Operation—The parameter may be set to Local or Shared. The factory
default is Shared. When set to Shared, outdoor temperature and humidity readings are averaged
among all connected units. The average is used to determine air economizer eligibility. When set to
Local, the sensor installed at the unit determines air economizer eligibility without influence from
other units connected in the group.
SA17 Shared Outdoor Air Temperature—Read-only parameter displays the shared outside air
SA17 Shared Outdoor Air Temperature—Read-only parameter displays the shared outside air
temperature when Outdoor Sensor Operation is set to Shared.
SA18 Shared Outdoor Air Humidity—Read-only parameter displays the shared outside air
SA18 Shared Outdoor Air Humidity—Read-only parameter displays the shared outside air
humidity when Outdoor Sensor Operation is set to Shared.