Specifications

UFM 070313
Page 24 | 1-800-343-9463
CONTROLLER FUNCTIONS
Button/Symbol Normal Functions
ON/OFF
• Press and hold the on/o button for approximately 3 seconds to turn the unit on or o.
Note: This does not disconnect power from the unit. In order for the power to be shut o from
the unit, the power cord must be unplugged from the wall receptacle.
• This button also serves as an escape button.
Up and Down
• Use these buttons to scroll up or down a menu.
• Press and hold the up button for approximately ve seconds to manually start the Anti-frost
sequence. The Anti-frost sequence will begin, but only if the evaporator is below 40 degrees. If
the evaporator is above 40 degrees, the display will blink three times, signalling that an Anti-frost
cycle is not needed, and the unit will continue normal operation.
SET
• Press the set button once to view the set point, temperature of the evaporator and actual Air
Sensing temperature as well as any alarms.
• Once the set button is pressed “SEt” will be displayed. Press the up or down arrows to scroll
through Pb1, Pb2.
SEt Set Point
Pb1 Liquid Temperature
Pb2 Evaporator Coil Temperature
• Press the set button again to view any of these values.
• To change the set point, press the set button when “SEt” is displayed on the screen. The current
set point will be displayed. Use the up or down arrows to change the set point to the desired
temperature. Press the set button again once the desired temperature is reached.
• Hold the set button for approximately 5 seconds to enter the CPSM (Customer Preference
Selection Mode) menu. (CPSM detail on next page)
Snowake
Constant - Unit is in cooling mode and the compressor is running.
Blinking - The unit is calling for cooling, but must wait 5 minutes before restarting the compressor.
This 5 minute delay serves as an anti-short cycle for the compressors protection.
Dripping Snowake
Unit is in Anti-frost mode. The evaporator and condenser fans are running to evaporate any frost
which may have formed on the evaporator coil.
Fan
The evaporator and condenser fans are on.
Alarm
The Alarm symbol is shown and a audible buzzer will sound when the unit encounters an issue that
needs attention, the displayed alarm codes are explained below. To silence the buzzer press any
button, the alarm code will remain displayed until corrected.