MicroCool IBEX 1000, Installation & Maintenance Manual

Page: 15 / 41

IBEX 8 Nozzle
SMALL FRAME_June 2020
June 20 Page 15 of 41
Setting Internal Temperature and Humidity Controls (Optional Upgrade)
1. If this upgrade was ordered with the system, temperature and humidity control will be available in
the controller.
2. To access, enable and set the temperature and humidity control, follow the steps in "Setting
Auxiliary Parameters”
3. To enable the temperature and humidity control, “TEMP & HUM” switch needs to be set from
“Switch=off” to “Switch=on”.
4. “HUMID SP” represents the humidity set point. To enter the set point, set the “off=**” to required
humidity level and set “on=**” to 0%. Example: if required humidity set point is 35%, set “off= 35”
and “on= 0”.
5. “TEMP SP” represents temperature set point, to enter the set point, set the “off=**” to required
temperature level in F°/C° and set “on=**” to at least 3° points above “off=**” setting. The difference
between the on and off setting is the hysteresis or dead band. Example: if required temperature set
point is 75°F with a 3°F dead band set “off=75” and “on=78”.
6. The temperature and humidity outputs are in series, so both the temperature and humidity contacts
needs to be closed for the system to run.
7. To view current temperature and humidity levels and set points, press “F4” once. The display will
revert back to the operation screen after 30 seconds.
Setting for Humidity control only :
1. Set the temperature set point to 33°F/0°C “off=33°F/1°C” and “on=34°F/1°C”. (This forces the temp
contact.)
2. Set the humidity set point to desired humidity to be maintained as described above.
3. The controller will start the pump system when the humidity drops below the set point.
Setting for Temperature control only :
1. Set the humidity set point to 100%. (This forces the humidity contact).
2. Set the temperature set point to the desired temperature to be maintained as described above.
3. The controller will start the pump system when the Temperature drops below the set point.
Setting for Humidity control with Temperature override:
1. Set the humidity set point to desired humidity to be controlled as described above.
2. Set the temperature set point to desired temperature, not to go below as described above.
3. The controller will start the pump system when the humidity drops below the humidity set point, but
will stop the pump if the temperature drops below temperature set point.
Setting for Temperature control with Humidity override:
Set the temperature set point to desired temperature as described above.
Set the humidity set point to humidity level not to exceed as described above.
The controller will start the pump system when the temperature rises above the set point, but will shut the
pump system off when the humidity set point is reached.
To view the VFD fault code:
All 380V to 575V IBEX pump units are installed with a panel door disconnect. In order to view status
information on the VFD display, it is necessary to defeat the door switch mechanism, and to open the
door in the ON position.
CAUTION! Opening the panel door in this manner does not remove power
from the internal electrical circuits.