Emerson BACNET IP Manuel D’Utilisation

Fan Speed Proportional Band 

Temperature control band above the temperature set point calculated for 

proportional fan speed control. If measured air temperature is within this 

band, fan speed operations are proportionally controlled. 

Fan Speed 

Fan speed expressed as a percentage of the maximum rated speed. 

Heating Proportional Band 

Temperature control band below [Air Temperature Set Point]. If measured 

air temperature is within this band, heating operations are proportionally 

controlled. 

High Power Shutdown 

Supply to high power components has been shutdown. 

High Return Humidity Threshold 

Threshold value used in the [High Return Humidity] event. 

High Return Humidity 

Return air high humidity event. 

Humidification Proportional Band 

Humidity control band below [Humidity Set Point]. If measured humidity is 

within this band, humidification operations are proportionally controlled. 

Humidifier Control Board Not Detected 

Humidifier control board is required to be connected, but no signal is 

detected. 

Humidifier Cylinder Worn 

Humidifier cylinder is not operating properly and needs to be replaced. 

Humidifier Hours Exceeded 

Operating hours for the humidifier have exceeded the threshold. 

Humidifier Issue 

Humidifier issue detected, causing it to be locked out. 

Humidifier Low Water 

The water level in the humidifier has dropped below its threshold. 

Humidifier Over Current 

The electrical current to the humidifier has exceeded its upper threshold. 

Humidifier Under Current 

The electrical current to the humidifier has dropped below its lower 

threshold. 

Humidifier Utilization 

Present humidifier utilization expressed as a percentage of the maximum 

rated capacity. 

Humidity Dead Band 

Value that is divided evenly to form a range above and below [Humidity Set 

Point]. If measured humidity is within this range, no humidification or 

dehumidification will occur. 

Humidity Set Point 

Desired relative humidity. 

Loss of Air Flow 

No air flow through the unit due to failure of all fans. 

Low Return Humidity Threshold 

Threshold value used in the [Low Return Humidity] event. 

Low Return Humidity 

Return air low humidity event. 

Maintenance Completed 

Maintenance has been completed on the unit. 

Maintenance Due 

The calculated maintenance date has been reached. 

Maintenance Ramp 

The ratio of operations performed to the calculated operations available 

between maintenance intervals. 

Master Unit Communication Lost 

Communication with master unit has been lost. 

Operating Efficiency 

The ratio of cooling energy provided to the amount of total energy being 

used. 

RAM Battery Issue 

RAM or RAM backup battery is not operating correctly. 

Reheat Utilization 

Present reheating utilization expressed as a percentage of the maximum 

rated capacity. 

Reheater Over Temperature 

The temperature of the reheater has exceeded its threshold. 

Remote Sensor Average Temperature 

Average value of remote sensor temperature measurements. 

Remote Sensor Function 

Function assigned to remote sensor. Available values are: (0) Control - 

sensor will be used in calculation of remote sensor temperature that may 

be used for heating and cooling control, (1) Reference - sensor will not be 

used in calculation of remote sensor temperature, but is enabled, (2) 

Disable - sensor is disabled 

Remote Sensor Issue 

Remote sensor is disconnected or the signal is out of range. 

Remote Sensor Maximum Temperature 

Maximum value of remote sensor temperature measurements. 

Remote Sensor Minimum Temperature 

Minimum value of remote sensor temperature measurements. 

Remote Sensor Temperature Calculation 

Calculation method applied to temperature readings from the remote 

sensors to determine a single temperature measurement value for cooling 

and heating control. 

Remote Sensor Temperature 

Air temperature as measured by remote sensor. 

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Liebert iCOM

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