EVCO EK825AP7 - Manual (Page 4)

4
When the phase of quick-cooling ends (it is related in Cycle number 1b) the instrument moves to the phase of cold-storing (it is related in Cycle
number 2).
Cycle number 4a: Quick-freezing for temperature:
Push the key T 3 to select this cycle and the key T 10 to start it: the LED L 2 turning on.
If the parameter "d4" is set to 1 and if the conditions permit it (the temperature read by the evaporator probe must be below the set established
with the parameter "d2"), the instrument automatically executes a defrost cycle to permit a best performance of refrigerating system: the indicators
DY 1 and DY 2 respectively display the indications "dEF" and the time established with the parameter "c4", the LED L 7 turning on (during
this cycle the defrost will never be activated again).
In order to assure a correct execution of a cycle of quick-freezing it is necessary that the needle probe is properly positioned inside the product:
so, the instrument (after pressure on key T 10), executes a test to verify the proper insertion of the needle probe (see the paragraph Verify
the proper insertion of the needle probe).
If the test has an happy success and if the conditions permit it (the eventual defrost cycle must be finished and the temperature read by the
needle probe must be lower to the set established with the parameter "c8"), the instrument starts the cycle: the indicators DY 1 and DY 2
respectively display the temperature read by the needle probe and the decrease of the time established with the parameter "c4", the LED L 7
flashes to indicate that a count of a time is on run, the outputs concerning get activated.
The kind of temperature regulation is ON-OFF: the temperature that regulates the compressor activity is the temperature read by the cabinet
probe, the set can be established with the parameter "cC", the hysteresis can be established with the parameter "c0"; the evaporator fans output
is forced to the status ON.
When the temperature read by the needle probe reaches the set established with the parameter "c5" the cycle has an happy success, the buzzer
is activated with intermittent beep for the time established with the parameter "c9", the indicators DY 1 and DY 2 respectively display the
indications "End" flashing and "---", the LED L 2 and L 7 turning off, the compressor, evaporator fans and defrost outputs get deactivated:
push the key T 10 to set the instrument for a new cycle; pushing the key T 7 the indicator DY 2 displays the time in minutes occurred to
reach the set established with the parameter "c5".
When the time established with the parameter "c4" ends, if the temperature read by the needle probe is not lower the set established
with the parameter "c5" the cycle does not end, the buzzer is activated till when it is stopped (pressure on key T 9 permit to stop
the buzzer), the indicators DY 1 and DY 2 respectively display the temperature read by the needle probe and the indication
"0" flashing, the concerning outputs remain activated: pushing the key T 7 the indicator DY 2 displays the time in minutes passed
from the start of the cycle.
When the temperature read by the needle probe reaches the set established with the parameter "c5" the cycle ends, the indicators
DY 1 and DY 2 respectively and alternately display the indication "End" and "---", the LED L 2 and L 7 turning off, the compressor,
evaporator fans and defrost outputs get deactivated: push the key T 10 to set the instrument for a new cycle.
Cycle number 4b: Quick-freezing for time:
Push the keys T 3 and T 7 to select this cycle: the LED L 6 turning on, the LED L 5 turning off.
The indicator DY 2 displays the length of the quick-freezing for time: to modify its value push the key T 8 or T 9.
Push the key T 10 to start the cycle: the LED L 2 turning on.
If the parameter "d4" is set to 1 and if the conditions permit it (the temperature read by the evaporator probe must be below the set established
with the parameter "d2"), the instrument automatically executes a defrost cycle to permit a best performance of refrigerating system: the indicators
DY 1 and DY 2 respectively display the indications "dEF" and the during of the quick-freezing for time, the LED L 7 turning on (during this
cycle the defrost will never be activated again).
When the eventual defrost ends the instrument starts the cycle: the indicators DY 1 and DY 2 respectively display the temperature read by
the cabinet probe and the decrease of the length of the quick-freezing for time, the LED L 7 flashes to indicate that a count of a time is on run,
the outputs concerning get activated; pushing the key T 7 the indicator DY 2 displays the time in minutes passed from the start of the cycle.
The kind of temperature regulation is ON-OFF: the temperature that regulates the compressor activity is the temperature read by the cabinet
probe, the set can be established with the parameter "cC", the hysteresis can be established with the parameter "c0"; the evaporator fans output
is forced to the status on.
When the length of the quick-freezing for time ends the cycle has an happy success, the buzzer is activated with intermittent beep for the time
established with the parameter "c9", the indicators DY 1 and DY 2 respectively display the indications "End" flashing and "0", the LED
L 2 and L 7 turning off, the compressor, evaporator fans and defrost outputs get deactivated: push the key T 10 to set the instrument for
a new cycle.