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PID/PRAC+ Automatic Control Tuning
The TEC3000 features advanced proportional-integral-derivative (PID) control algorithms to maximize control
performance while minimizing excessive cycling and wear on the equipment for all occupied and standby control.
Additionally, the PID features Johnson Controls proprietary PRAC+ automatic tuning, which continuously tunes the
controller parameters to automatically optimize the control performance to match the equipment and zone. By
default, PRAC+ is enabled and immediately begins to tune. To reset tuning at any time to the factory defaults:
1. Press the Menu icon.
2. Press Control Setup.
3. Press Tuning.
4. Press Reset PID Tuning and select Yes.
5. Press
to save and
PRAC+ automatic tuning can also be disabled. When disabled, the controller parameters remain at their last values
until automatic tuning is re-enabled. To disable automatic tuning:
1. Press the Menu icon.
2. Press Control Setup.
3. Press Tuning.
4. Press Temp Control Setup.
5. Select Manual PID Tuning.
6. Press
to save and
As a result of disabling PRAC+ Auto Tuning, you have access to different types of manual tuning that allows
modifications of tuning parameters listed under Control Setup > General in Table 10.
Table 8: TEC3000 Tuning Types
Tuning Type
Automatic PID Tuning
Deadband Override
Manual PID Tuning
Note: For more details on PID/PRAC+ Automatic Control Tuning, refer to the Controller Tool Help (LIT-12011147).
Configurable Binary Inputs
The thermostat controller supports up to two configurable binary inputs (BIs) that can be used to add additional
features to the system. Configurable Binary Inputs are accessed through Settings > Control Setup > Inputs. Both
BIs can be configured to support the following options:
•
Disabled—Sets the binary input to an unused state. When disabled, you can use the binary input for
monitoring-only without affecting the thermostat functionality.
•
Open Window—Sensor to shut down control if a window is opened. The controller disables control 60 seconds
after detecting an opened window.
•
Open Door—Works in conjunction with the Motion NO/Motion NC sensor to control occupancy
•
Fan Lock—Air Proof switch input to shut down control if no airflow is detected within 10 seconds of turning the
fan on. Fan Lock must be manually reset from the Faults menu.
TEC3000 Series Wireless Proportional Fan Coil and Individual Zone Thermostat Controllers with Dehumidification
to return to the previous screen.
to return to the previous screen.
Description
Automatic tuning in an existing TEC3000
There is no deadband in use with proportional devices. This operates in the same way
as Automatic PID tuning.
Manual tuning of Heating and Cooling PIDs. The manual tuning parameters are listed
under Control Setup > Tuning in Table 10.
Capability Installation Instructions
29
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