Parameter

Description

NO ALARM

No alarm is activated.

4MAT SEN ALARM

MAT/LAT sensor has failed, gone out of range or become disconnected.

4CO2 SEN ALARM

CO2 sensor has failed, gone out of range or become disconnected.

4OAT SEN ALARM

OAT sensor has failed, gone out of range or become disconnected.

4OAH SEN ALARM

OAH sensor has failed, gone out of range or become disconnected.

4RAT SEN ALARM

RAT sensor has failed, gone out of range or become disconnected.

4RAH SEN ALARM

RAH sensor has failed, gone out of range or become disconnected.

4FREEZE ALARM

Anti-freeze notification when MAT/OAT sensor is below anti-freeze protection setpoint.

4RTU SHUTDOWN

Notification of Shutdown Active when 'SHUTDWN' is chosen for '6AUX1-I' or '6AUX2-I'.

4ACTUATOR ALARM

Actuator output has failed, or the gap between the actuator output (in percentage) and feedback (in percentage) is bigger than the actuator tolerance setpoint (3ACT TOLR).

4ACT UNDER V

Voltage received by the actuator is below expected range (2-10 Vdc).

4ACT OVER V

Voltage received by the actuator is above expected range (2-10 Vdc).

4ACT STALLED

Damper actuator stopped before achieving commanded position.

4ACT SLIPPING

Damper actuator slips after reaching commanded position.

4NOT ECON

Not Economizing when it should

4ECON SHOULDNT

Economizing when it should not

4EXCESS OA

Excess outdoor air. Outside air intake is significantly higher than it should be

4LLA ALARM

Leaving air temperature is lower than the low limit (3LAT LOW).

4HLA ALARM

Leaving air temperature is higher than the high limit (3LAT HIGH).

4HEAT ALARM

Economizer heating error

4COOL ALARM

Economizer cooling error

All alarms are dynamic items. An alarm appears only if a related symptom mentioned above is detected.

An alarm activation triggers a general alarm, then the configured system alarm output (AUX1-O or AUX2-O) is activated. If there is no alarm, 'NO ALARM' is displayed on the HMI.