3. Select split (SPLit) if using a fan or AC unit as a cooling device and a humidifier to add humidity.
Each device is controlled independently. The cooling device will turn on when the temperature
rises above the setting and the humidifier will turn on when the humidity goes below the setting.
MIN/MAXIMUM TEMP - Press to "recall" or display the minimum and maximum temperature
recorded values. Each time the button is pressed, the next setting will be displayed.
MIN/MAXIMUM HUMIDITY - Press to "recall" or display the minimum and maximum humidity
recorded values. Each time the button is pressed, the next setting will be displayed.
TO RESET THE MIN/MAX VALUES – When the recorded value is displayed, press the ENTER/RESET
button and hold for 3 seconds.
Q & A
• What if my temperature is reading high? Make sure the remote probe is not in direct lighting
from HID lights or sunlight.
• Do I need to calibrate my humidity sensor? No. Like the temperature sensor, the humidity
sensor is digital and does not require calibration.
• Why is the display reading Err SEn? The remote probe is not connected and/or communicating
with the controller. Check the quick-connect cable and that the remote probe is getting power.
Contact the factory for more info.
• What if one of the small green error LEDs are on? One or more environmental conditions are
not acting correctly. Refer to the Error LEDs sections to diagnose the problem.
• What if the CO
timer is not keeping correct time? The battery may need to be replaced. The
2
lithium battery has an average life of 5 years. Battery is a lithium CR1220 3 volt.
• What if there is no power? Reset the power switch (circuit breaker). If the problem continues,
reduce the number of devices connected or use a power multiplier / expander to control devices
with larger amperage.
IMPORTANT MESSAGE
1. Save these instructions. These safety and operating instructions must be kept in a safe place for
future reference.
2. Heed all warnings. All warnings on this product and in the instructions must be observed closely.
3. Follow all instructions. All operating instructions must be followed.
4. If the instructions as provided by the manufacturer are not followed, damage to the product may result.
5. Install your controller at least 8 feet away from any devices that produce large amounts of
electronic noise, such as electronic ballasts or ozone generators.
6
www.hydrofarm.com
INSTRUCTIONS