Liebherr MKv 3910 - Manual (Page 7)

19
GB
Alarm test
This test checks the function of the internal and any external
connected alarm device.
The appliance does not stop its refrigerating function during
this test.
Activating the test
Press + for 5 seconds.
• The display will change to a temperature value of 0.2°C below
the set upper alarm limit.
• The temperature value will now rise by 0.1°C every 2 seconds.
• When the upper alarm limit is reached, will appear in the
display. An external alarm unit connected to the floating alarm
output will now be activated.
• The temperature value will continue to rise up to 0.2°C above
the upper alarm limit.
• The same process will take place automatically for the lower
alarm limit. will appear in the display.
The LED will be lit during the test.
The electronic control system will automatically switch back to
normal operating mode.
Cancelling the test prematurely
Press
for 5 seconds.
Audible warning signal settings
The audible warning signal will be muted for the current alarm
after the button has been pressed.
Complete the following steps if you want the audible warning
signal to reactivate automatically.
Press for 5 seconds. Display =
Display =
Display =
Display =
Display =
Display =
Display =
Display =
Display =
Automatic reactivation of the audible warning signal is now active.
The time before the audible warning signal sounds again must be set.
Display =
Display = Time in minutes after which the audible
warning signal will sound again after the
button
has been pressed. Setting
range = 1 - 120 minutes.
Use buttons and to select the desired setting.
Display =
Press for 5 seconds.
The electronic control system will switch back to normal operat-
ing mode.
Alarm messages
1. LED flashes
If appears in the display, the appliance has a fault.
Consult your nearest customer service point.
2. LED flashes and appears in the display
The power failure alarm battery is supplying too low a voltage
or is defective.
Consult your nearest customer service point.
3. LED flashes, the display reads
HI
or
LO
The interior is too warm (HI) or too cold (LO).
The audible warning signal sounds.
4. HACCP flashes - the current interior temperature,
and are displayed alternately
There has been a power cut of some length or the interior was
too warm or too cold during a certain period of time.
Up to three alarm events can be stored and called up.