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[F41]- Maximum time on defrost (for safety):
This function adjusts the maximum duration of a defrost cycle. If the defrosting is not complete, during
this period, according to the temperature, a dot will begin flashing in the lower right corner of the display,
indicating that the time set for the defrost has ended by the required temperature has not been reached.
This can happen when the temperature set is too high, the time limit is insufficient, the S2 sensor is
disconnected or it isn't in contact with the evaporator.
[F42]- Draining time (from water collected from defrosting):
Time required for removing excess water, i.e for the last drops of water to drain from the evaporator.
During this period, all outputs remain switched off.
This function can be turned off by setting it to the minimum value [Off,].
[F43] - Enable tray Defrost:
[OFF,] - Deactivates tray defrosting;
[,,,1] - Defrosting the tray using the FAN outlet;
[,,,2] - Defrosting the tray using the AUX outlet;
The chosen output acts as a second defrosting output. This output is activated during the pre-defrost,
defrost and drain periods. The functionality related to the control of this output (FAN or AUX) will be
disregarded.
Note: Defrosting the tray using the FAN output does not prevent the use of the variable speed fan (VSF).
[F44] - Fan type:
[,,,0] – On-Off type fized speed fan (relay output);
[,,,1] – Variable speed fan controlled by evaporator temperature. Speed increases when
evaporator temperature decreases;
[,,,2] – Variable speed fan controlled by room temperature. The speed increases as the room
temperature increases.
Note: Parameters [F45]to [F51] adjust the fixed speed fan operation and parameters [F48] to
[F59] adjust the variable speed fan operation (Variable Speed Fan ''VSF'' output from 0 to 10Vdc).
[F45] - Fan operation mode:
[,,,0] – Automatic according to time: the fan will be on when the compressor is on. When the
compressor is off, the fan will oscillate according to the times set in [F46] and [F47];
[,,,1] – With the compressor on, the fan is on. With the compressor off, the fan turns on when the
temperature is higher than the setpoint + 60% of the hysteresis and turns off when the temperature is
lower than the setpoint + 20% of the hysteresis;
[,,,2] – Continuous: the fan is always on;
[,,,3] – Dependent: the fan operates together with the compressor.
[,,,4] – For a period of time after the compressor ir turned off: after turning off the compressor, the
fan will remain on for the time set in [F46].
Note 1: Modes 0 and 1 will only switch the fan on if the temperature of the S2 sensor is lower than the
temperature of the S1 sensor.
Note 2: Mode 1 will activate the fan only if the temperature of sensor S2 is lower than the configured
setpoint.
[F46] - Fan on time if [F45] = 0 or 4:
This is how long the fan is ON for.
[F47] - Time fan is turned off if [F45]=0 (automatic timed mode):
This is how long the fan is OFF for.
[F48] - Temperature in the evaporator to switch the fan back on after draining:
After drainage is complete, it starts a fan-delay cycle. The compressor will start up immediately,
because the temperature in the evaporator is high, but the fan will only start after the temperature in the
evaporator falls below the set value. This function is used to remove the heat that still exists in the
evaporator due to the defrost, avoiding throwing it into the environment.
[F49] - Maximum time for fan return after draining (Fan-delay):
For safety, if the temperature in the evaporator does not reach the value set by function [F48] or the S2
sensor is disconnected, the fan will only come on after the time set for this function has expired.
[F50] - Fan cut off due to high temperature in the evaporator (S2 sensor):
This is intended to disconnect the evaporator fan when the room temperature is not within the design
range for the refrigeration device, avoiding high temperatures and suction pressures that could damage
the compressor. If the temperature in the evaporator exceeds the set value, the fan is turned off and will
be restarted with a fixed hysteresis of 2°C (3.6°F). This is a useful function to use when, for example, a
refrigerator is used that has been idle for days or when restocking units or counters with products.
[F51] - Open door time to turn off fan:
This is the length of time that the fan will continue to run after the door is opened.
If you set a minimum value of [Off,], the fan will not switch off if the door is opened.
If you set a value of[,,,0], the fan will switch off immediately if the door is opened.
[F52] - Variable fan control temperature:
It is the lower temperature limit, below which the fan will operate at maximum (if [F44] = 1) or minimum
(if [F44] = 2) speed.
[F53] - Variable fan control differential (hysteresis):
If [F44]=1, this parameter represents the temperature range where the fan will vary the speed
between high and low limits. The fan will turn off when the temperature in the evaporator (sensor S2)
reaches the upper limit ([F52] + [F53]).
If [F44]=2, this parameter is used to turn off the fan when the room temperature (sensor S1) reaches
the lower limit ([F52] - [F53]).
If F44 = 1
Temperature S2
F52+
F53
F52
t
F55
F54
0%
t
Ventilation
F01 = Desired temperature (setpoint)
F02 = Desired temperature (economic setpoint)
F05 = Operating setpoint control differential
F06 = Economic setpoint control differential
F52 = Fan control temperature
F53 = Fan control differential (hysteresis)
F54 = Minimum fan speed
F55 = Maximum fan speed
[F54] - Minimum variable fan speed:
[F55] - Maximum variable fan speed:
Set the minimum and maximum fan speeds.
[F56] - Variable fan speed with compressor off:
Sets the variable fan speed when the compressor is off.
If the defrost is of the natural type, the fan will remain on at this speed during the pre-defrost and defrost
stages.
By setting this parameter to the minimum value [Off,], the variable fan will turn off at the same time
as the compressor.
[F57] - Start time at maximum speed:
When turing on the variable fan it is kept at a high speed for a few seconds, as set in [F55]. The
purpose of this feature is to apply an initial torque to make the fan motor easier to run.
[F58] - Time of variable fan on at minimum speed to activate anti-freeze protection:
Time in which the variable fan must be on with the speed configured in [F54] to operate at the
maximum speed configured in [F55] for the time configured in [F59].
This process of periodically accelerating the control speed prevents ice from forming on the fan blades.
[F59] - Time of variable fan on at maximum speed during anti-freeze protection:
Maximum time of variable fan on at maximum speed [F55] during antifreeze protection. This
parameter works together with [F58].
[F60] - Digital input 1 operating mode:
[,,,0] : Digital input disabled;
[,,,1] : NO Contact - Door sensor;
[,,,2] : NC Contact - Door sensor;
[,,,3] : NO Contact - External alarm (indication only);
[,,,4] : NC Contact - External alarm (indication only);
[,,,5] : NO Contact - Control shutdown;
[,,,6] : NC Contact - Control shutdown;
[,,,7] : No button - Eco mode;
[,,,8] : NC button - Eco mode;
[,,,9] : NO pushbutton - Fast Freezing;
[,,10] : NC pushbutton - Fast Freezing;
[,,11] : NO pushtbutton - Defrost;
[,,12] : NC pushbutton - Defrost;
[,,13] : NO Contact – Combined defrost;
[,,14] : NC Contact – Combined defrost;
[,,15] : NO Contact - Lighting;
[,,16] : NC Contact - Lighting;
[,,17] : NO Contact - Pressure switch status 1;
[,,18] : NC Contact - Pressure switch status 1;
[,,19] : NO Contact - High pressure switch;
[,,20] : NC Contact - High pressure switch;
[,,21] : Sensor S3 - Temperature differential for economic setpoint (S3-S1);
[,,22] : Sensor S3 - Condenser temperature control;
[,,23] : Sensor S3 - Second evaporator temperature control;
[,,24] : Sensor S3 – Door temperature control, anti-condensation.
[F61] - Digital input 2 operating mode:
[,,,0] : Digital input disabled;
[,,,1] : NO Contact - Door sensor
[,,,2] : NC Contact - Door sensor;
[,,,3] : NO Contact - External alarm (indiciation only);
[,,,4] : NC Contact - External alarm (indication only);
[,,,5] : NO Contact - Control shutdown;
[,,,6] : NC Contact - Control shutdown;
[,,,7] : NO button - Eco mode;
[,,,8] : NC button - Eco mode;
[,,,9] : NO pushbutton - Fast Freezing;
[,,10] : NC pushbutton - Fast Freezing;
[,,11] : NO pushbutton - Defrost;
[,,12] : NC pushbutton - Defrost;
[,,13] : NO Contact – Combined defrost;
[,,14] : NC Contact – Combined defrost;
[,,15] : NO Contact - Lighting;
[,,16] : NC Contact - Lighting;
[,,17] : NO Contact - Pressure switch status 2;
[,,18] : NC Contact - Pressure switch status 2;
[,,19] : NO Contact - Low pressure switch;
[,,20] : NC Contact - Low pressure switch;
[,,21] : Sensor S4 - Insufflation temperature (indication).
If F44 = 2
Temperature S1
F01+
F05
F52
F55
F54
0%
Ventilation
Note: If economizer mode is activated, functions F01 and F05
will be replaced by F02 and F06, respectively.
t
t
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Do you have a question about the EVOLUTION TC-970E Log+ECO and is the answer not in the manual?
Questions and answers
The temperature won't drop below 15 degrees F. Is there anything I can do? Also if I turn the control functions off will the compressor keep it frozen?