BASIC DESCRIPTION
The APCETHD is designed to control humidity, temperature and CO
receptacles and a remote combination probe with highly accurate temperature, humidity and light
sensors. The remote combination sensor is designed to quickly react to changes in the growing area
and to resist EMI/EFI from electronic ballasts. The remote sensor can be placed up to 15 feet from the
controller.
INSTALLATION
1. Secure the unit to a wall.
2. Determine the best location for the remote probe. Place the probe in an area with good air
movement preferably at plant height. Avoid placing the probe in direct sunlight or under direct
HID lighting.
CAUTION: Do not place the sensor probe where it will come in to contact with water. The unit is
not waterproof!
3. The remote probe has a quick disconnect to easily remove or connect the probe. Secure the quick
disconnect to the unit by securing the QD screw to the unit.
4. Plug the power cable into a standard NEMA 5-15 wall outlet. A 120V power supply is required.
5. Ensure that all of the devices being connected to the controller have the proper voltage and will
not exceed the maximum amperage rating of this unit.
Note: Now is the time to customize your settings prior to connecting any equipment.
PHOTOCELL SENSITIVITY
The sensitivity of the photocell may be adjusted.
Press both ENTER/RESET and UP buttons and hold for 3 seconds. The current photocell setting will be
displayed. Press UP to increase the number displayed and the sensitivity (requires less light to activate
photocell). Press DOWN to decrease the number and the sensitivity (requires more light to activate
photocell). Press ENTER/RESET to accept the change.
BUTTON FUNCTIONS
The fifteen (15) buttons located on the front face control all the functions. Pressing each button will
display a function and/or current setting(s) in the green LED window. Some buttons perform more
than one function.
Several small green LED lights or status indicators located on the front panel will light up to show
selected function when certain buttons are pressed.
UP - Press button to increase setting
DOWN - Press button to decrease setting
ENTER/RESET - Press button, hold for 3 seconds to ENTER new setting and to reset the Min/Max range.
TEMPERATURE BUTTONS
DAYTIME SETTING - Press button to set day temperature setting.
NIGHT SETTING - Press button to set night temperature setting.
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INSTRUCTIONS
. The controller has four (4)
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