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14
FUNCTION DETAILS
Temperature Control: After turning on the unit and reaching the delay time (parameter E40), the
compressor starts operating when the cabinet temperature is higher than (set temperature +
hysteresis) and will be off when the cabinet temperature is lower than the set point temperature.
To protect the compressor, it cannot be re-started unless the time after the compressor stops is
longer than the delay time (Parameter E41).
Defrost Control: After running for a defrost interval set time (parameter F2), the unit will enter
defrost and the compressor stops. When the defrost duration time (parameter F1) ends, it will exit
defrost status. After a defrost period ends, there will be 2 minutes of dripping time before the unit
can enter refrigeration status.
• When defrost interval F2 is set to “00”, the automatic defrost by turning off compressor will be
cancelled.
• When setting parameter F4 is set to “0”, the temperature will be displayed normally during
defrost.
• When setting parameter F4 is set to “1”, the cabinet temperature is locked during defrost, and
the last value before defrost is displayed. When defrost ends, normal display will resume after
temperature display 20 minutes delay (or cabinet temperature lower than the set temperature).
The defrost LED flashes during delay.
• When setting parameter F4 is set to “2”, the set temperature will be displayed during defrost.
• When defrost ends, normal display will be resumed after 20 minutes delay (or cabinet
temperature lower than the set temperature). The defrost LED flashes during delay.
• When setting parameter F4 is set to “3”, dEF will be displayed during defrost. When defrost
ends, normal display will be resumed after 20 minutes delay display dEF (or cabinet temperature
lower than the set temperature). The defrost LED flashes during delay.
Alarm Control: After turning on for the first time, the unit will need to reach the C5 delay time
setting, then the high/low temperature alarm function can be triggered (C1, C2, C3). After passing
C5 delay, when the cabinet temperature is abnormal (for example higher than the temperature alarm
C1 or lower than temperature alarm C2) and duration more than alarm delay time C6, the unit will
enter alarm status, alarm start. When high temperature alarm alternate display H1 and cabinet air
temperature, the compressor starts to run. When low temperature alarm, will alternate display L0
and cabinet temperature, the compressor stops. When cabinet temperature is higher than the (low
temperature alarm value C2 + alarm hysteresis C4), the low temperature alarm ends. When cabinet
temperature is lower than (high temperature alarm value C1 –alarm hysteresis C4), the high
temperature alarm ends.
When the product sensor temperature is greater than ore equal to the product temperature high
temperature alarm value C3 and duration more than alarm delay time C6, unit enters alarm status,
and starts the alarm, alternate display H2 and cabinet temperature. When the product sensor
temperature is less than or equal to the(high temperature alarm value C3 – alarm hysteresis C4), it
will end the high temperature alarm.
When the electric supply is off, flash and display EEL and alarm. When setting do1 is set at “00”, unit
will not alarm when door is open. When setting do1 is set at “0”, once unit reaches the delay time, it
will flash and display “dr alarm”, press random button to cancel.
If setting C7 is set to “0”, then the units relay does not alarm when power is off.
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