Instruction 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 10.
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: A Product Sensor (display sensor) and an 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 the 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.
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.