Order no. 900340.012
V1.54
Page 23
Defrosting time limitation
Here, you can set the max. time in which the defrosting
operation must be completed.
After the time set here, the defrosting operation will be
stopped even if the evaporator was not hot enough to
be free of ice.
No error message will be displayed.
Temperature difference for
refrigeration before defrosting
maximum refrigerating time for
refrigeration before defrosting
To avoid unnecessary heating up of the cold store, you
can set up a refrigeration cycle to be performed before
the defrosting operation.
Delay after compressor
stop before electric defrosting is started
If the compressor is on when an electric defrosting
request is received, the start of the defrosting
operation is delayed by the time specified here.
Drip time
Directly after the end of the defrosting operation, the
drip / dewatering time will start let the evaporator drain.
During this time, the compressor, defrosting and
evaporator fan outputs are switched off.
Off-delay of drip tray heating
Here, you can define how long the drip tray heating is
to remain switched on after a defrosting operation to
avoid that the dripping water freezes again.
Display, forced release after de-frosting
With L4 = 0, the display may be frozen during
defrosting. After successful defrosting the frozen
display is released not later than the time set here. If 0
is set, there will be no forced release
.
Password for parameter level
With this parameter, you can set the password for
parameter level d--.
Fan control circuit 1
Fan speed in control mode, Set1
Fan speed in normal control mode and active Set1
Fan speed during defrosting, Set1
Fan speed during defrosting and active Set1
Fan speed in control mode, Set2
Fan speed in control mode and active Set2.
Fan speed during defrosting, Set2
Fan speed during defrosting and active Set1
Start-up time (in seconds)
If necessary, the fan can be switched on at max.
speed for the time set here to ensure it runs properly.
This parameter is active only if the fan is switched on
from standstill.
Minimum speed
Here, you can set the lowest voltage value at which a
connected fan will still be running.
Evaporator fan: Fan mode control mode
In this parameter, you can define how the fan is
switched on in control mode. If the controller is
performing a defrosting operation, the fan will be
controlled via parameter
. In the case of
continuous operation, the fan will be running as soon
as the controller is switched on. In the case of
continuous operation interrupted for draining, the fan
will behave like in the case of continuous operation.
However, it will be switched off for the time set in
as soon as the defrosting operation is complete. After
the drain time set in
, the fan will be switched on
again. If the compressor is switched on before this
time has elapsed, the fan will be restarted immediately
(after the delay set in
). In the configuration with
compressor On, the fan will be switched on/off
together with the compressor. In order to avoid mains
overload by starting the compressor and fan at the
same time, a delay can be defined in
. The fan can
also be temperature-controlled. You can define if the
evaporator sensor temperature or the difference
between the evaporator and the cold store sensor is to
be used for controlling the fan. The control setpoint
and hysteresis are defined via parameters
and
.
Fan mode defrosting
Here you can define if the fan is to be on or off during
defrosting. This parameter will not be effective in
temperature-controlled fan mode [
=4 or 5].
Delay after compressor On
In order to avoid mains overload by starting the
compressor and fan at the same time, you can define
a delay for the fan in this parameter. It will not be
effective in temperature-controlled fan mode.
Delay after defrosting
At the end of a defrosting cycle, the fan will be
switched on after the delay set in this parameter. This
parameter will be effective in all fan modes set up.
