Shutdown Strategy describes how you want the coil to behave when the unit is shutdown.
-
Off sends a 0% command to the coil and stop a coil pump (if you have one).
-
Remain in Control has the same control loop that controls the coil while the unit is operating control the coil during loss of airflow.
-
Protect Coil Based on Outdoor Air Temperature opens the valve, as needed, when the outdoor air falls below the low limit setpoint. This strategy can protect the air handler coils during extreme temperatures.
-
User Defined Position commands the valve to a pre-defined position while the unit is in shutdown mode.
Note: The Remain in Control Shutdown Strategy is available only when you select a proportional valve (with either Proportional or Incremental actuator).