JEA USER MANUAL
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4.2 DAY AND NIGHT MODE
In DAY mode, the temperature is lower to keep the products inside the cooler at the correct temperature for resale, and the
lights are ON for Point of Sale (POS). In NIGHT mode the regulated temperature is higher than in DAY mode as the products do
not need to be as cold, and the lights are OFF as no need for POS. This saves energy and reduces the workload of the outputs
(compressor) to extend operational life. Switching between day and night mode is controlled by either the energy-saving
feature or the self-learning algorithm (model dependant).
4.3 NORMAL, ECO AND SUPERFROST MODE
In either Day or NIGHT mode, there are 3 different temperature cut-in/cut-out settings which can be implemented: Normal, Eco
or Superfrost. The values can be customisable. Normal is the standard cut-in/cut-out temperature required for general cooler
operation. Eco has a higher cut-in/cut-out temperature than Normal and Superfrost has lower cut-in/cut-out temperature values
than Normal. These settings are manually activated by pressing buttons on the display interface.
4.4 DEFROST MODE
4.4.1 STANDARD DEFROST
Depending on customer requirements there are different parameters which can trigger the defrost mode:
Defrost can be triggered by either using the temperature of the evaporator probe or/and by time-lapse (see defrost in
parameters for different types of timers). When both settings are enabled, whichever event happens first will trigger or end the
defrost cycle.
The JEA has a minimum defrost duration and minimum duration between defrost cycles which must be satisfied before it will act
no matter the status of the other parameters. This is to ensure the defrost cycle is not stopped too early or defrost cycles are not
initiated to close together.
Time
Defrost period
Defrost is terminated
Defrost period
Defrost is terminated
>Minimum Duration between Defrost Cycles
ON
Compressor
OFF
ON
Evaporator Fan
OFF
ON
Defrost Relay
OFF
CUT IN
CUT OUT
Temperature Probe
Defrost is activated Defrost is activated
>Minimum Defrost Duration
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