Selecting Dehumid or Humid Mode
Before using the unit, the user must decide if they are using it
for a DE-humidify or HUMIDIFY control. The 2 knobs on the
unit are used to select the desired mode.
To select Dehumidify (lower humidity levels / rh-): Connect
the unit to power. Rotate both knobs fully COUNTER-
clockwise. After a couple seconds the LEDs on the front of the
unit will start flashing On / Off. After the LEDs stop flashing,
the selected mode is indicated by the LED that remains
illuminated. (*Verify the rh- mode is ON.)
To select Humidify (raise humidity levels / rh+): Connect
the unit to power. Rotate both knobs fully clockwise. After a
couple seconds the LEDs on the front of the unit will start
flashing On / Off. After the LEDs stop flashing, the selected
mode is indicated by the LED that remains illuminated. (*Verify
the rh+ mode is ON.)
* Once the correct mode is selected, the user can now set the
desired humidity settings using the two knobs normally.
Changing Settings
Use the knobs on the front of the unit to adjust the DAY and
the Night humidity settings*. The photocell will automatically
use the correct setting depending on the lighting level. When
the humidity of the area exceeds the humidity set-point, the
device connected to the power outlet will be activated. Since
the humidity control has a dead-band setting of 5% rH, the
power outlet will remain activated until the humidity is lowered
by 5% rH. When the outlet is powered, the Output ON LED
will be ON.
*This example describes the Dehumidify mode. When in
Dehumidify mode, the setting is the maximum humidity of the
area to be controlled. For Humidify mode, it is the minimum
humidity of the area to be controlled.
Q & A
How can I tell if the photocell is working? There is a built-in
30 second time delay for the photocell to change status. A
green LED on the top RIGHT edge of the unit that says
“Daytime” will light up when the photocell is in Daytime mode.
Can I connect more than one device to the unit. Yes… As
long as the total amperage of the devices connected to the
unit do not exceed the maximum rating of the unit. We
recommend the total amps not to exceed 75% of the rating.
The humidity of the area does not seem to be correct? The
sensor is located on the bottom on the unit in the protective
plastic “cage”. Ensure the unit is not being affected by other
factors such as direct sunlight exposure or areas that may not
have good air movement.
What if there is no power? Ensure the unit is getting power.
Check the device that is connected to the unit by plugging it
directly into a known power supply. If the unit will not turn on
and no LEDs will illuminate, contact your distributor for repair
and warranty issues.
made in china
