Lauda VF 20040 C, Operating Instructions Manual

Page: 21 / 42

V1 Versafreeze Chest Freezers 21 / 42
8 Alarm limit values
Setting a limit value for the cover alarm delay
Tap the Menu symbol on the touch screen unit. In the parameter level, scroll down to the USr user level, tap parameter A6,
set the required limit value, and save. A timer starts when the cover is opened.
If the timer exceeds the preset delay time, the door alarm is triggered.
Overtemperature limit value
Tap the Menu symbol on the touch screen unit. In the parameter level, scroll down to the USr user level, tap parameter A13,
set the required limit value, and save. If the refrigeration compartment temperature exceeds the upper preset limit value,
the overtemperature alarm triggers.
Low temperature limit value
Tap the Menu symbol on the touch screen unit. In the parameter level, scroll down to the USr user level, tap parameter A15,
set the required limit value, and save. If the refrigeration compartment temperature falls below the lower preset limit value,
the low temperature alarm triggers.
USr User level
A 6 = Alarm delay (door open) Factory setting 60 sec.
A 13 = Lower limit 1 (abs/rel) Factory setting -4.0 K
A 15 = Upper limit 1 (abs/rel) Factory setting 4.0 K
C 11 = Refrigeration compartment temperature set point The value is stored on the device card
C 25 = Hysteresis sensor F1 Factory setting The value is stored on the device card
H 11 = Offset correction sensor F1 Factory setting The value is stored on the device card
The device card is located behind the right side cover of the machine compartment of the VF 200.. C and below the up-
per cover of the machine compartment of the VF 550.. C and VF 750.. C.