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General notice (liability): the details of this technical documents serve for description. Consents regarding the availability of certain features or
regarding a certain purpose always require a special written agreement.
Page 16 GB
8 - 8.1
Right reserved to make technical changes!
8.
Types of operational parameters
8.1 Parameter list
Attention!
The following parameters are important for the operation of the refrigeration unit. They may only be changed by
specialists. It is therefore recommended that the password for the access to the parameters be kept secret.
If the parameters are changed, the new ones should be entered in the column „Changed Values“.
Parameter for mode of operating (enabling by codeword P01 =
22
)
The following parameters are as parameter for mode of operating for cooler resp. freezer prepared.
They can be adjust. If neccessary they can restore through P 50 and P 51 to the factory setting (see 7.5.2.3).
Parameter
Description
Unit
Range
Changed
values
Recommended
Normal
cooling
Deep-
freezer
P28
Signal Display from DCF Antenna
seconds 0-59
P29
Door contact switch (0=without/1=with)
0-1
0
0
P30
Defrosting
00-03;
10-13
0
0
x0=according to set cycle times
x1 = according to set cycle times, but dependent on running time
of compressor
x2=dependent on set switch-on times (only with DCF Antenna)
x3=defrosting as required
0y=“Defrost Start“, door contact switched off
1y=“Defrost Start“, door contact switched on
P31
Max allowable room temperature
°C
-50 .. +50
20
-5
P32
Min allowable room temperature
°C
-50 .. +50
-5
-25
P33
Room temperature differential
K
1-8
2
2
P34
Minimum stop time, compressor
minutes 3-10
3
3
P35
Initiation delay, evaporation fan
minutes 0-10
3
3
P36
Running time after stop, evaporator fan
minutes 0-20
0
0
P37
Running time after stop, evaporator fan, to determine degree
of icing
minutes 0-10
3
3
P38
Temperature difference to allow switch-on of defrosting
K
10-40
25
25
P39
Defrost temperature limit
°C
+5 .. +50
20
20
P40
Drainage time, evaporator
minutes 0-10
3
3
P41
Start temperature, evaporator fan
°C
-20 .. +10
-5
-15
P42
Delay time, temperature alarm
minutes 0-99
60
60
P43
Upper temperature alarm (S P43)
K
0-20
10
10
P44
Lower temperature alarm (Setting – P44)
K
0-20
5
5
P45
Delay time, door contact alarm
minutes 0-99
4
4
P46
Temperature setting , condenser for rotation speed regulator
°C
0-50
20
20
P47
Rotation speed, condenser fan in %
OFF/
10..100
P48
Min rotation speed, condenser fan in %
10 .. 100
40
40
P49
Conductivity, rotation speed regulator, condenser fan
1-100
10
10
P50
Unit type, 1=normal refrigeration, 2=Deepfreezer
1-2
1
2
P51
Revert to plant settings (P=78)
