CHANGING SETTINGS
1. Turn the setpoint adjustment knob to set the desired minimum CO
CO
level in the room drops below this setting, the unit will turn on the CO
2
automatically maintain that desired CO
applications are about 1100-1600 PPM.)
TROUBLESHOOTING
PLEASE NOTE: There is a 2-3 minute delay after each ON cycle. Once the controller has powered
the CO
device for a cycle, it will power off the device for 2-3 minutes. It may be longer if CO
2
are high enough, but it will not be less than 2 minutes. Even if the CO
controller will not trigger the CO
How can I tell if the photocell is working? The green LED on the left side of the sensor should be
constantly illuminated, because the sensor is always reading CO
There is a built-in 5-second time delay for the photocell to change status as it goes into a dark period
(and disables energizing of the unit's power outlet). There is no delay as the photcell reads a status
change from darkness to light (i.e. when the grow lights turn on).
The CO
level being reported does not seem to be correct. Ensure the unit has good air movement
2
around the CO
sensor. Do not breathe near or directly on the CO
2
reading from the CO
2
I have no power to my controller unit. Check the CO
it directly into a known power supply. If the device works properly and the controller unit will still not
turn on and no LEDs illuminate, contact your retailer for repair and warranty issues.
NOTE: Avoid allowing the APCECO2 unit and probe to have any contact with water. Although the
APCECO2 and probe are water-resistant, they are not waterproof.
INSTRUCTIONS
tank or generator until after the 2-3 minute delay period.
2
you exhale.
level in the room. (Typical settings for agricultural
2
2
device that is connected to the unit by plugging
2
level. When the actual
2
device and will
2
levels become very low, the
2
levels, even during the dark period.
sensor, which can increase the
2
levels
2
3