Primary States (2 Pipe 2 Position Valve with DA-T Low Limit) - Johnson Controls - Metasys - LIT-12011147 - Software Application - Controller Configuration Tool - 13.1

Cooling Mode

The following cooling modes are only active when the SummerWinter input is set to Summer.

• Off: Sets the Cooling Percent Cmd and Percent Cmd to 0%.

• Max: Sets the output for maximum cooling. The Cooling Percent Cmd is set to 100%.

• Limited Max: Sets the Heating Percent Cmd to the Limited Max Value input percentage.

• Hold: Holds the Cooling Percent Cmd output at its current value. If the Output Overridden input is true, the Output Position input is passed to the Cooling Percent Cmd.

• Water Flush: Sets the Cooling Percent Cmd output to 100%.

• Control: Adjusts the output to control the Process Variable (cooling only). As this Cooling Percent Cmd varies, it causes changes to the valve output. If the Process Variable is reliable, the module controls the output in order to maintain the process variable at the Cooling Setpoint. Otherwise, the Cooling Percent Cmd output is set to the failsoft value. If the input PID Tuning Reset is true, the Reset Tuning input to the PID is set true causing the PID to recalculate its tuning parameters. While that occurs, the Cooling Percent Cmd is held at its last value.

• Failsoft: Sets the Cooling Percent Cmd and Percent Cmd outputs to the Failsoft Clg Value.

Heating Mode

The following heating modes are only active when the SummerWinter input is set to Winter.

• Off: Sets the Htg Percent Cmd and Percent Cmd to 0%.

• Max: Sets the output for maximum heating. The Heating Percent Cmd is set to 100%.

• Limited Max: Sets the Heating Percent Cmd to the Limit Max Value input percentage.

• Hold: Holds the Heating Percent Cmd output at its current value.

• Water Flush: Sets the Heating Percent Cmd output to 100%.

• Control: Adjusts the output to control the Process Variable (heating only). As the Heating Percent Cmd varies, it causes changes to the valve output.

• Control Limit: Adjusts the output to control the Low Limit Process Variable (heating only). As the Heating Percent Cmd varies, it causes changes to the valve output. The process variable (zone temperature) is also controlled in this mode. The maximum of the Control Limit and Control Heating output is sent as the Heating Percent Cmd.

• Failsoft: Sets the Heating Percent Cmd and Percent Cmd outputs to the Failsoft Htg Value.