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Operation: Control the Environment
NetworkAIR IR Operation, Maintenance, and Troubleshooting 21
Dehumidify. Dehumidify mode is controlled by the dehumidify PID controller. The PID controller
adjusts the output as required to maintain the temperature at the setpoint.
Humidify. The steam cylinder humidifier output is controlled by the humidify proportional
controller. When the control humidity drops below the humidify setpoint, the humidifier output
increases as the control humidity drops until the output reaches 100%.
Setpoints
Path: Main > Control Environment > Setpoints
Setpoints are the target values that each mode maintains in the room. The default setpoints are
appropriate for most precision cooling applications.
The setpoint for each mode must be within the following ranges:
• Cool: 61.8–90.0°F (16.5 to 32.2°C)
• Reheat: 60.0–88.2°F (15.6 to 31.2°C)
• Dehumidify: 30–80% Relative Humidity
• Humidify: 30–80% Relative Humidity
See “PID controls” on page 23 for a description of the PID controls and
instructions on tuning the dehumidify PID loop.
See “Humidification sensitivity” on page 25 for a description of the
Humidification sensitivity band.
If a mode is disabled and you change the setpoint, the display warns you that the
mode is disabled. See “Modes” on page 22 to enable or disable operating modes.
Note
You cannot overlap setpoints. If you attempt to overlap setpoints, the display
warns you and resets the setpoints.
The Cool setpoint must be 1.8° F (1° C) above the Reheat setpoint, if reheat is
installed in the Module. The Dehum setpoint must be 1% Relative Humidity
above the Humidify setpoint, if a humidifier is installed.