Controller Operation; Use And Care Of The Lcd Touchscreen - Follett REF20-LB Installation, Operation And Service Manual

Controller Operation

Use and care of the LCD touchscreen

The LCD touchscreen utilizes capacitive touch technology . This will allow you to engage the functionality by
touching the screen with your fingers, even while you are wearing latex or cotton gloves . Functionality will not
engage by touching with an inanimate object, such as a pen or stylus .
§ To preserve optimal touch sensitivity, keep the screen clean by using a clean, dry cotton cloth .
§ Do not expose the screen to liquids or excessive dust, heat or humidity .
Control function icons and navigation buttons engage functionality of the user interface . Status indicators alert the
user to a change of status .
Home screen
The Home Screen consists of three primary information areas: the
temperature display, control function display zone and system status display .
Control Functions System Status
Settings
Alarming
Light
Information log
Help
§ Product temperature is displayed in the upper right corner .
§ Current selected display probe above temperature readout .
§ Primary control function icons are displayed in the lower left corner .
§ System status icons will display in lower right corner to indicate a
condition has been activated .
High and low temperature display
From the home screen touch the temperature display in the upper right
corner . The high/low temperatures will appear below the temperature
display . To the left of the high/low temperature, a time and date stamp will be
displayed .
View the bottom probe temperature and min/max temperature log
1. Press the Temperature Display in the upper right hand corner of the
display
– Will initially display MIN/MAX temperature of Top probe .
2. Press a second time to prompt a reset Top probe MIN/MAX .
3. Press a third time to display HIGH/LOW alarm settings .
4. Press a fourth time to display current Bottom probe temperature .
5. Press a fifth time to display Bottom probe MIN/MAX temperature .
6. Press a sixth time for prompt to reset Bottom probe MIN/MAX
temperature log . .
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Functions and Settings
Compressor is running
Evaporator fan is running
Door is open
Defrost cycle is in process
USB download available
(downloading when blinking)
Refrigeration set points
Sleep functions
Centrigrade to Fahrenheit
Probe set points
Alarming functions
Alarm mute
Reset
Fig. 7
Fig. 8
Fig. 9
01134592 – REF20/25 LB, PH, BB