eZV-440 Application Guide
Edition 2.6
Page 57 of 84
2. Wait for the Balancer Airflow reading to read and stabilize around the cooling maximum
airflow setpoint.
3. Measure the actual airflow from the diffusers. If the airflow reading does not agree with the
measured airflow, enter the airflow value that you just measured in the Balancer Airflow field
and click the FlowFactor Auto Adjust button.
The algorithm will automatically calculate and adjust the FlowFactor based on this value.
4. Wait for the Balancer Airflow reading to stabilize at the cooling maximum airflow setpoint
again and measure the airflow again to confirm that the airflow is now reading correctly.
7. Exit Balancing Mode
Exit balancing mode by selecting None_ in the Balancing Mode field. Balancing mode also
automatically expires after a timeout period that you set in the AV142 object. This prevents the
system from being stuck in balancing mode if you forget to exit balancing mode after balancing is
complete.
Check Duct Heater Airflow Safety
Use the enteliZONE configuration page to perform this task.
If you have an electric duct heater, it likely has a built-in airflow safety switch or high temperature
cutout. This section describes how to make sure the safety switch allows the heater to run at the
minimum heating setpoint.
1. Set the value of the MV170 object to the minimum heating airflow setpoint.
2. After the airflow has reached this setpoint and is stable, turn on the duct heater by manually
commanding the associated output. Verify that the heater is turned on. If the heater doesn’t
turn on, adjust the airflow safety or raise the heating minimum setpoint so that the safety
contact is made and the duct heater is allowed to run.
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