Carbon Dioxide (Co2) - Agrowtek GrowControl GCX Instruction Manual

Carbon Dioxide (CO2)

CO2 controls are used to operate CO2 valves, burners and exhaust equipment based on a carbon dioxide in-
tensity set point and sensor reading. A setpoint determines the target CO2 concentration and a "deadband"
determines the allowed drift from the target before activating the CO2 control.
• CO2 valves / burners • Exhaust fans • Alarm horn / strobe
First, assign a sensor to read from (1) and a device to control (2) on the equipment tab.
Equipment assignments apply to all rules in the function.
1. Sensor Device Select a sensor device (or average) for the thermostat function to read.
2. Control Output Select a mode, output device and output channel to operate with the function.
Rules for CO2 set points are created and edited on the rules tab.
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1. Mode Exhaust:
Inject:
2. Setpoint The target sensor value to achieve.
3. Deadband The allowed drift from the target before activating the function.
4. Dark Switch Disables injection when the CO2 sensor unit detects the ambient light level is 0.
5. Preview A preview of the rule settings.
NOTE
When con guring a CO2 control for injection, ensure the rule is set to inject during the day period only.
CO2 augmentation should only occur during the day photoperiod.
To coordinate CO2 control with the day photo period, either:
• Turn on the "Disable when Dark" switch to disable when the CO2 sensor detects the ambient light level is 0.
• OR, set the rule time schedule to the lighting or other schedule time.
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Rule activates when CO2 concentration exceeds setpoint.
Rule activates when CO2 concentration is below setpoint.
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