-9-
Setting the "upper alarm temperature", parameter P20:
Selection and setting as described in parameter P03. The default setting is the given value for
P03 plus ..K. The entry can only be made if the code was entered for parameter P30 (see the
table for factory settings).
Displaying set temperature:
Push the "P" button and select parameter P03,
Push the "P" button again.
Delete alarm signal: Push "+" or "-" button.
Manual defrost activation:
Push the "P" button and select parameter P029,
Push "P" button again,
hold the "+" button for approx. 3 sec.,
the defrost process starts and ends automatically.
Manual stopping of defrost process:
hold the "+" button for approx. 3 sec.,
defrost process is stopped.
Options
"High storage humidity” Option:
Continuous operation of the evaporation fan (standstill during defrost).
Creates an increase in the relative humidity in the cold storage room.
Enter code 88 in parameter 30.
Set parameter P18 to 2 and confirm with the P button.
"Circulation Defrost” Option: (minimum room temperature of 4°C)
Fan runs during defrost. => latent heat utilisation
Creates an increase in the relative humidity in the cold storage room.
Enter code 88 in parameter 30.
Set parameter P18 to 3 and confirm with the P button.
Set parameter P19 to 0 and confirm with the P button.
Disconnect electric heating E1 E2 according to the circuit diagrams on pgs. 19pp.
Connect the door frame heating (on site) according to the circuit diagrams pgs. 19pp.
Meaning of the alarm signals
Buzzer activated : the upper or lower alarm temperature has been exceeded for a longer
period of time than the delay time set for the alarm.
Flashing display: the occurrence of sensor breakage or sensor short circuit.
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