General
General Principles of Troubleshooting
Note: These are guidelines only. Opening the control and any work on wiring should only be done by a trained professional as there could be live voltage and a risk of shock or death. Swapping control covers from a working unit to a non-working unit ...
DOL C02 sensor LED red but readings are good
When you only have one of the two wires connected to an IN-4, this can cause the LED to go red. The sensor will regularly check if it is able to deliver the appropriate current level for the given CO2 level. If that is not possible, LED will turn ...
How to control Sunnorth Altra-Air Sailfin HVLS fans
You can control them with a 0-10v or using the Modbus communication protocol. The FC-1T-1VDC is a standalone control that will work.
What are the main differences between the Plus Touch and Supra Touch?
The Supra Touch has twice the capabilities of the Plus Touch. Supra Touch has 4 variable stages, 12 relays, and can control up to 4 zones. The Plus Touch has 2 variable stages, 6 relays, and can control 2 zones. Another difference is that the Supra ...
Supra/Pbx-11/PEC - Can I use ECM motors?
Supra-RS - The Supra can support up to 4 0-10v DC stages by adding a K210050 --10VDC expansion kit PBx-11 - The PBx-11 has 2 0-10v DC stage outputs located in the display board. *These two stages track the variable AC stages and are not independent ...
Troubleshooting actuator potentiometer feedback wiring
Troubleshooting actuator potentiometer feedback wiring The feedback potentiometer wiring must be properly connected to the control. Determining the correct wiring can be difficult on some actuators or potentiometers. Common symptoms of incorrect ...