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FIELD PROGRAMMING GUIDE -MINI MAX
OPERATING THE SYSTEM
Once the Ice Qube system has been installed onto the
enclosure and the power cord has been attached to a
properly grounded electrical outlet with adequate voltage
and current supply, the unit is ready for operation. As
soon as electrical power is supplied to the Ice Qube
system, the cool air stream blower will start to operate.
The blower will run continuously so that the controller
can monitor the enclosure’s internal temperature. The
enclosure temperature will be displayed on the face of
the controller.
If the enclosure temperature is greater than the factory
cooling setpoint of 80°F, the “Cool” status LED will flash.
This indicates that the compressor’s automatic off cycle
timer is working. (The off cycle timer is factory set at 3½
minutes). At the end of 3½ minutes, the compressor and
the condenser air blower will begin to operate. This
signifies that the cooling system has begun operation to
remove heat and humidity from the enclosure. This
procedure may take 20 to 30 minutes before it reaches
full capacity.
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. Example: “Cooling on” @ 80°F; “Cooling
off” @ 73°F.
NOTE: There is a dead band programmed
into the controller that prevents
heating and cooling from operating
simultaneously.
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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 80° F
2. Heating system on temperature 50° F (optional)
3. High enclosure temperature alarm 100°F
4. Low enclosure temperature alarm 40° F
5. Audible and Visual alarm “ON”
6. Digital display in degrees Fahrenheit
7. Filter maintenance alarm 0 days – Disabled
8. High condenser temperature alarm 170° F
To change the factory default settings, enter the programming
code sequence:
“+” (plus sign)
“-” (minus sign)
“Select”
After pressing the above sequence the program LED should
illuminate along with three alternating flashing boxes on the
display face, indicating the code was accepted. If no selection
is made within one minute, the system returns to the normal
operating mode.
Note: Pressing the “Exit” button at any time
while in the programming mode returns
the controller to the normal operating
Press the “Select” button to continue programming. The set
temperature “HI” LED illuminates with the display indicating the
‘cooling on’ setpoint. The compressor will begin operation at
this temperature and will remain operating until the enclosure
temperature decreases approximately seven degrees
Fahrenheit (four degrees Celsius).
Press the “+”or “-“ buttons until the desired set point is
displayed. The range for this adjustment is 70° to 126°F, (21°
to 52°C). When the adjustment is complete, press the
“Select” button to continue.
The set temperature “LO” LED is on with the display indicating
the (optional) ‘heating on’ set point. The heating system will
begin operation at this temperature and remain operating until
the enclosure temperature increases approximately seven
degrees Fahrenheit (four degrees Celsius). Press the “+”or “-
“ buttons until the desired set point is displayed within a range
of 0°F to 63°F (-17.8°C to +17°C).
NOTE: Review alarm settings if the ‘cool on’ or
Press the “Select” button to continue. The set alarm “HI” LED
is on with the display indicating the high temperature alarm
setpoint. The alarm will activate at this temperature and will
automatically reset at two degrees Fahrenheit (one degree
mode.
‘heat on’ set points have been changed,
“Exit”
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Celsius) below this temperature. Press the “+” or “-“ key pads
to change the alarm setpoint within a range of 8ºF (or 4ºC)
above the set temperature “HI” set point, to 135°F (or 57°C).
Press the “Select” button to continue. The set alarm “LO” LED
is on with the display indicating the low temperature alarm set
point. The alarm will activate at this temperature and will
automatically reset at two degrees Fahrenheit (or one degree
Celsius) above this temperature. Press the “+” or “-“ key
pads to change the alarm setpoint within a range of 8ºF (4ºC)
below the set temperature “LO” set point, to 34°F (or 1° C).
Press the “Select” button to continue. The alarm LED will
flash and the display will show “ALL”, indicating the “ALL”
alarm on/off status. Press “Select” and the display will show
either “ON” or “OFF”, indicating current alarm status. Press
the “+” or “-“ key pads to toggle the mode as desired. If the
“OFF” mode is selected, no alarms will activate and the audible
on/off select function is skipped.
Press the “Select” button to continue. The audible LED will
flash and the display will show “AUD”, indicating the audible
alarm on/off status. Press “Select” and the display shows
“ON” or “OFF” indicating the current audible alarm status.
Press the “+” button or the “-” button to toggle the mode as
desired.
Press the “Select” button to continue. The “C” LED flashes
and the display shows either “F” for degrees Fahrenheit or “C”
for degrees Celsius. Press the “+” button or the “-” button to
toggle the mode as desired.
Press the “Select” button to continue. The code LED is on
and the display shows “PIN”. To set a new user PIN code,
press the “+” button. The display will flash “4”, prompting an
entry of a four button sequence using the “+”, “-”, “Select”
and/or “Exit” buttons. (Any sequence of the four buttons may
be programmed as the code.) As the buttons are pressed, the
display will show the number of buttons that were pressed.
NOTE: After pressing a button, there will only be
5 seconds to press the next button. If the
next button is not pressed within the
allotted time, the system will default to no
PIN code, indicated by “0” on the display.
Once the sequence is entered the display
will no longer flash, and will show “4”.
To program the no PIN code mode, press “-” and the display
will show “0”, indicating no PIN code. With no PIN code,
pressing any button will permit access to the program.
*** CAUTION ***
Always record the selection sequence (PIN code) and store in
a secure place.
Press the “Select” button to continue. The filter LED flashes
and the display will show “FIL”, indicating the filter alarm days
selection. Press the “Select” button and the display will show
the number of days that the alarm is set in one-half day
increments. (Example: 10.5 indicates the alarm will activate
every ten and one-half days).
Press the “+” or the “-” key pads to vary the desired number of
days. (Range is 0-99 days). Programming 0 days will disable
the alarm.
NOTE: The required number of days to set this
alarm will be determined by the ambient
air conditions. If rain or wash down
hoods are installed on the system, no
filter is supplied and the filter alarm
should be set to “0”. This will disable the
filter alarm.
Press the “Select” button to continue. The program LED will
be lit and the display will show “Add”. Press the “Select”
button again and a value of “0.0” will appear. Programming of
the microprocessor is now complete.
Press the “Select” button to review all of the settings. Press
the “Exit” button to enter the selected settings and to return to
the normal operating mode.
NOTE: If the “Exit” button is not pressed, any
changes to the program settings will not
ALARM OPERATION:
be saved.
1. The enclosure temperature is above or below the
alarm setpoint:
The alarm LED will light, the display flashes, either “HI” or
“LO” LEDs flash with the display and the audible alarm
sounds (if activated). The enclosure temperature must
rise or fall two degrees Fahrenheit (one degree Celsius)
before the alarm will reset.
2. The condenser temperature is above the condenser
alarm setpoint:
The alarm LED lights, the display flashes the condenser
temperature, and the audible alarm sounds (if activated).
The condenser temperature must fall four degrees
Fahrenheit (two degrees Celsius) before the alarm will
reset. The above alarms can be manually reset by
entering the PIN code into the system.
3. The filter day timer has expired:
The alarm LED lights, the display flashes showing “FIL”,
the filter LED flashes with the display and the audible
alarm sounds (if activated). The filter alarm may be
cleared by pressing “Exit”.
4. Sensor Malfunctions:
i. E-O - Evaporator sensor open
ii. E-C - Evaporator sensor shorted
iii. C-O - Condenser sensor open
iv. C-C - Condenser sensor shorted
NOTE: An alternating E-O … C-O display
may indicate the sensor connector
has become disconnected from the
rear of the controller.
Field Programming Guide MiniMax 3-2013 Rev.0
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