Beer Grill AG
Beer Grill GmbH
Allmendstrasse 7
Tel. +41 56 618 7800
Körnerstrasse 14 a
Tel. +49 71 61 659 876
CH
– 5612 Villmergen,
Switzerland
Fax +41 56 618 7849
D
– 79539 Lörrach,
Germany
Fax +49 71 61 659 879
www.beergrill.com
Assembly-Programming-Instructions_Cold-Rack_e_05-10-2018
Page 45
d--
Defrosting control loop 1
d0
Assignment of evaporator sensor (defrost sensor)
This parameter is used to set which sensor input is to be the sensor input of the evaporator/defrost sensor. The selected
sensor must be set accordingly in the H parameters.
d1
Defrosting interval
The defrosting interval determines the time after which defrosting is initiated. The defrosting interval is restarted at the start
of defrosting. Defrosting can also be started by pressing the
UP
key ("Manual defrosting") for at least 3 seconds or by
pressing a parametrised key. Defrosting can also be started in real time via the internal 7-day timer. The controller starts
cooling immediately after switching on and starts the first defrosting after the interval set in
d1
has expired. If
[d1
= 0] is set,
no automatic defrosting takes place.
d2
Type of defrosting
This parameter is used to specify if defrosting is to take place and, if so, how the defrosting is to take place. The options for
defrosting are for the compressor simply to be switched off, an electric defrosting heater or via hot gas. Electrical defrosting
always takes place after a compressor pause that is specified in
d9
. Hot gas defrosting always takes place immediately after
a cooling phase. In addition, the
d7
and
d8
parameters can be used to determine if the cooling space is to be cooled down
before defrosting.
d3
Defrosting temperature
A defrosting process is terminated when the temperature set here has been reached at the evaporator. If defrosting takes
too long, the time limit set in
d4
takes effect.
d4
Defrosting time limit
This sets the maximum time available for defrosting. After the time set here, the defrosting process is also stopped if the
evaporator was not warm enough to be ice-free. No error message is displayed.
d7
Temperature difference for previous cooling down
d8
Maximum cooling time for previous cooling down
In order to prevent unnecessary heating of the cooling space, cooling down before the defrosting phase can be set here.
d9
Compressor at least off before electrical defrosting starts
If the compressor is on during an electrical defrosting request, the start of defrosting is delayed for the time period after
compressor stop specified here.
d10
Drip off time
Immediately after the end of defrosting, the drip-off time or dewatering time follows in order to allow the evaporator to drip
off. During this time, the compressor, defrosting and evaporator fan outputs are switched off.
d11
Drip tray heating run-on time
This specifies how long the drip tray heater is to remain switched on after defrosting so that the water dripping off does not
freeze again.
d20
Forced release display after defrosting
With
L4
= 0, the display can be frozen during defrosting. After successful defrosting, the frozen display is enabled again at
the end of the time parametrised here at the latest. If 0 is set, no forced release takes place. The display is therefore only
enabled when the temperature falls below the frozen value.
d99
Password for parameter level
d--
This parameter is used to set the password for parameter level d--.
