6 7
Error Codes
S_SR: Check the sensor connection and verify that it is clean and free of debris
OUTP: If the Co2 sensor doesn’t observe the PPM set point being reached in a 2 hour time
period, screen flash with error code. Press the corresponding knob to reset error (if there is a
cooling error, press the day/night temperature knob)
Error LEDs: There are four different error LEDs on the CDEC. Each one corresponds to an output
on the unit (CO2, Cooling, Heating and Humidity). These error lights are triggered when the
sensor doesn’t observe the set point being reached for the respective output in a 2 hour time
period. When this occurs, the affected output will be disabled. It will remain disabled until any
knob on the unit is pressed at which point it will return to normal operation.
Controller Specifications:
• Max Amp: 14.5 amps @ 120V 60Hz
• Sensor Cord Length: 15 feet
• CO2 Range: 400-2000 PPM
• CO2 Accuracy: +/-100 PPM
• CO2 Dead-Band (Hysteresis): 50-500 PPM
• Temp Setting: Adjustable 40°-122° F
• Temp Dead-Band (Hysteresis): Adjustable 2°/4°/6° F
• Temp accuracy: +/-2° F
• High Temp Limit Adjustable: 85°-115° F
• Low Temp Adjustable: 40°-70° F
• Humidity Setting Range: 5%-95% rH
• Humidity Accuracy: +/-3% rH
• Humidity Dead-Band (Hysteresis): 5% rH
• Weight: 3.5lbs
• Dimensions: 8” x 7.5” x 3.3”
• Indoor Use Only
• Operating Temperature: 50°F to 95°F
• Maximum Relative Humidity: 95%
Controller Diagrams:
PPM Up
CO2
+Deadband
Setpoint
On
Off
Time
CO2 PPM
CO2 Generator
CO2
+Deadband
-Deadband
Setpoint
On
Off
Time
CO2 Tank - Solenoid Valve