4
If there is condensation, wait until the device is completely
dry. The device generates heat which must be able to esca-
pe. It is therefore important that the vents are never cover-
ed. The accumulation of heat negatively influences the ser-
vice life of the device and is a source of danger.
The specified minimum distances (at least 30 cm above and
below) must be strictly observed. This applies above all
when several devices are installed one over the other. By
means of appropriate measures (e.g. the use of a specially
designed air flow unit), the minimum distance between devi-
ces can be reduced if required.
The permitted ambient temperature is 0...50°C. Installation
in unventilated cabinets or alcoves is not permitted.
Installation is permitted
only
in rooms which maintain the
permitted ambient temperature even in changing climatic
conditions.
Warning:
When the device is installed in places such as
storage areas and roof trusses, it must be ensured that the
permitted ambient temperature is maintained.
If auxiliary fans are used for convection, it must be ensured
that in the event of fan failure the device is disconnected
from the power supply by means of appropriated measures
in order to prevent damage to the device.
Because of fire hazard due to lightening, it is recommended
that all mechanical parts (e.g. V16, equipotential busbars,
distributors, etc.) are mounted on non-combustible under-
lays. Combustible materials include wooden beams, woo-
den boards, plastics, etc.
2 Hazard and safety information
2 Hazard and safety information
2.2
Opening the housing
Before opening the housing:
Be careful when doing maintenance work! Disconnect the
power plug.
Appliances with operating display:
The operation display merely shows the existence of a DC
voltage separated from the power grid, providing the com-
ponents of the appliance.
If the operation display is not illuminated, this does not
necessarily mean that the appliance is not connected to
the power grid. The power must be cut before opening the
appliance. Even when the power has been cut, the power
supply unit of the appliance can be live.
Do not service during thunder storms.
Opening the device must be done only by authorized per-
sonnel according to the national regulations, or by sending
the device to ASTRO with an exact description of the fault.
Replace the power cables only with an original part power
cable.
Replace fuses only with those of the same type, value and
melt characteristics.
Important:
DIN VDE 0701 - 0702, servicing; EN 50 083 Part 1, safety
requirements
2.3
Potential equalization and grounding
The proper
grounding
and installation of the system must
comply with
EN 50 083 Part 1
.
