Why does my staged equipment shut off early with PID control on my Johnson Controls Controller?
If the staged equipment on your Johnson Controls Controller shuts off above the cooling setpoint or below the heating setpoint when the PID is running (but not in On/Off Control mode), it is expected behavior. The PID control algorithm minimizes overshoot and energy usage, which may cause the equipment to cycle before reaching the setpoint.
Why does my staged equipment cycle too fast or slow with PID on my Johnson Controls Controller?
If the staged equipment on your Johnson Controls Controller cycles too rapidly or slowly when the PID is running, the control band around the setpoint is likely set incorrectly for your equipment, zone, or preference. Verify that the equipment's minimum on/off times are set correctly. If the default deadband doesn't provide the desired temperature control, set Temp Control Setup to Deadband Override and adjust the Deadband parameter to your preferred value.
What to check if the zone temperature is too cold on my Johnson Controls Controller?
If your Johnson Controls Controller displays 'Zone Temperature Too Cold', it means the zone temperature has dropped below the configured Zone Temp Low Limit. To address this, verify that the TEC and the RTU heating are enabled and functioning correctly.
What to check if the zone temperature is too hot on my Johnson Controls Controller?
If your Johnson Controls Controller displays 'Zone Temperature Too Hot', it means the zone temperature has exceeded the configured Zone Temp High Limit. To resolve this, verify that the TEC and the RTU cooling are enabled and functioning properly.
What does 'Cooling Ineffective' mean on my Johnson Controls Controller?
If your Johnson Controls Controller displays 'Cooling Ineffective', it means the supply air temperature hasn't decreased enough while cooling has been active for the specified delay. To resolve this, verify that the cooling elements on the rooftop are functioning properly.
What does 'Supply Fan Fault' indicate on my Johnson Controls Controller?
If your Johnson Controls Controller displays 'Supply Fan Fault', it means the Supply Fan Status configured for either BI1 or BI2 hasn't been proven within the configured Fan Alarm Delay. Verify that the supply fan is operating when turned on, and check that the Supply Fan Status wiring is connected correctly.
Why is my Johnson Controls Controller displaying 'Cooling Unavailable' or 'Heating Unavailable' due to Control Mode?
If your Johnson Controls Controller displays Idle with a Unit Status of Cooling Unavailable (despite being above the cooling setpoint) or Heating Unavailable (despite being below the setpoint) due to Control Mode, it means the Control Mode is set incorrectly. If it's in Cooling Mode while requesting heating, change the Control Mode to Auto or Heating. If it's in Heating Mode while requesting cooling, change it to Auto or Cooling.
What does 'Calibration Corrupt' mean on my Johnson Controls Controller?
If your Johnson Controls Controller displays 'Calibration Corrupt', the factory calibration data is lost or not installed. You will need to order replacement units and return the affected devices to Johnson Controls under the RMA program.
Why does my Johnson Controls Controller show an error when restoring settings from a backup?
If the controller provides an error when trying to restore settings from a backup on your Johnson Controls Controller, the USB drive may be defective, the restore file may be corrupt, or the restore file may be from an incompatible model TEC. Try a different USB drive, try restoring a different backup file, and ensure that the backup file being restored was from the same model TEC.
Why am I getting an error when upgrading firmware on my Johnson Controls Controller?
If the controller provides an error when trying to upgrade firmware on your Johnson Controls Controller, it means the firmware on the USB drive is below the minimum required version. Use firmware version 3.0.2.xxxx or higher. A reboot is required to clear the Firmware Mismatch fault that occurs.
Guidelines for selecting the best placement for controller performance.
Step-by-step guide for physically installing the thermostat controller.
Warnings about shock hazards, property damage, and ESD during wiring.
Instructions for wiring terminals and setting the bus end-of-line switch.
Guide for using the USB port for upgrades, backups, and restoring settings.
Lists common faults, their causes, and recommended solutions.
Detailed steps to diagnose and fix specific operational problems.
General| Brand | Johnson Controls |
|---|---|
| Model | TEC3000 Series |
| Category | Thermostat |
| Language | English |
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