HumanTechnik lisa Mode D'emploi page 11

- The doorbell voltage of your
system is too low. Either con-
tact an electrician to have the
doorbell system converted or
use the Doorbell Transmitter -
Acoustic.
Important note
All lisa devices connected to
the mains supply have a low
power consumption which may
lead to the device feeling
warm. This is normal and does
not interfere with the normal
function of the devices.
These signalling systems have
a high operational safety.
Should any faults occur in spite
of proper installation and use,
please contact your dealer.
High and low voltage spikes
(e.g. during a thunderstorm)
can occur on the mains supply.
The lisa devices have an inte-
grated electronic controller
which may stop working after
these conditions. If this hap-
pens simply unplug each of the
devices and plug them in again.
As a precaution remove all
devices from their sockets
during a thunderstorm.
The use of halogen lamps of or
other equipment (e.g.
Microwave Ovens) may, in rare
cases, interfere with the lisa
signals. In these cases the use
of mains filters or suppressors
is advisable. Please ask your
dealer.
Maintenance and care
All lisa devices are maintenan-
ce free. To clean, remove from
their mains sockets and wipe
over with a moistened cloth.
Never use alcohol, thinner or
other organic materials.
lisa devices should not be
exposed to excessive direct
sunlight, heat, thick dust, humi-
dity or mechanical shock.
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