User Manual
7 
OPERATION- QUICK SETUP GUIDE 
This section explains how to operate your unit. For more detailed instructions on changing the parameters 
of the control panel, see page 9. 
Once plugged in, the display will show the product temperature inside the refrigerator and the compressor 
will start to run (an indicator light on the control panel will turn on at the same time). 
Note: this product utilizes two sensors: Product Sensor (display sensor) and Air Sensor (control sensor). 
For maximum performance the refrigerator controls use a separate air sensor. This allows it to rapidly 
respond to product loading and door openings. You may need to adjust the controller lower than the 
desired product temperature as the air temperature needs to be lower to pull the product temperature 
down. 
The temperature displayed is product temperature recorded by the product sensor in glycol inside a vial 
located in refrigerator. As the refrigerator cools to the set point, the number on the display will decrease 
accordingly. The product vial will take longer to cool than the air in the refrigerator. 
If power is cut off, wait for at least 5 minutes before plugging the unit in again to avoid damaging the 
compressor. 
CONTROL PANEL 
Adjusting the Operating Temperature 
To change the set point, press the SET key and the set-point temperature will be displayed. To change 
the set point, within 10 seconds, press the up or down arrow key until the desired temperature is 
displayed. The new set point will be memorized when you push the SET key again. 
Glass door models come preset to 4°C and solid door models are factory set to 5°C. Adjust the 
temperature up or down to achieve your desired product temperature the displayed temperature. 
High/Low Temperature Alarm 
If the temperature in your refrigerator drops below the air low alarm set point, an alarm will sound. The 
front panel display will flash LO and the current temperature will be displayed alternately. Also, if the 
temperature rises above the high air alarm setpoint an alarm will sound. The front panel display will flash 
HI and the current temperature will be displayed alternately. if the temperature rises above the high 
product alarm setpoint an alarm will sound. The front panel display will flash H2 and the current 
temperature will be displayed alternately. There could be a number of reasons for this which should be 
investigated immediately. The refrigerator should be monitored to check that it is returning to the correct 
temperature. Set the alarms values to meet your requirements in the parameter set-up and settings. 










