Programming The Controller - iceqube IQ27000V Operation And Installation Manual

If the heat load within the enclosure is less than the cooling capacity of the Ice Qube system, the
temperature on the digital display will begin to decrease. When the temperature inside the enclosure
decreases 7 degrees Fahrenheit below the "Cooling on" setpoint, the compressor and the condenser
blower will cycle off. The cool air blower will continue to operate, circulating air within the enclosure.
The controller has a factory programmed temperature differential of 7 degrees Fahrenheit.
"Cooling on" @ 80°F; "Cooling off" @ 73°F.
Ice Qube also offers two heat options: an External Heat Output (EHO) which provides power to an
external heater typically located within the equipment enclosure; and an Internal Heat Output (IHO)
which provides a heater located within the air conditioning unit. If the enclosure temperature is below
the factory heating setpoint of 50º F, the heat status LED will be '"on". This indicates the heat relay
has been energized and is providing power to the heater. (There is no time delay before heating
begins). When the temperature of the enclosure rises 7 degrees Fahrenheit above the setpoint, the
controller will de-energize the heat relay and cycle the heater "off".
NOTE:
There is a dead band programmed into the controller that prevents heating and
cooling from operating simultaneously
See the label of the air conditioner for maximum wattage requirement of the
heater(s).

PROGRAMMING THE CONTROLLER:

The digital controller has many features that may or may not be required for your application.
However, the controller has been programmed at the factory with typical default settings for
immediate system operation. Please review the following default settings:
1. Cooling system on temperature
2. Heating system on temperature
3. High enclosure temperature alarm
4. Low enclosure temperature alarm
5. Audible and Visual alarm
6. Digital display in degrees
7. Filter maintenance alarm
8. High condenser temperature alarm
QD-ENG-40 REV.3
.
0 days - Disabled
Figure 3: Digital Controller
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80° F
50° F (optional)
100° F
40° F
"ON"
Fahrenheit
170° F
Example: