EN
Walter Meier reserves the right to alter specifications.
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16
INSTRUCTIONS FOR USE
Important information
Qualified personnel only
The installation work, the enter-
ing of settings and commissioning
should be carried out by qualified
personnel only.
Standards and requirements
The pertinent national standards and
regulations dealing with installation,
the entering of settings and com-
missioning must be followed if the
equipment is to operate correctly.
Measurements and electrical
work
Isolate the ventilation unit from
the electrical supply grid before
you carry out voltage tests, meas-
ure the electrical insulation resist-
ance at various points or perform
other remedial measures that
could damage sensitive electrical
equipment.
Surge protection
Walter Meier recommends that all
ventilation units equipped with
Premium automatic control be
equipped with a surge protection
device.
To open the ventilation unit
for service
Always ensure that the ventilation
unit’s power supply has been iso-
lated before you open the ventila-
tion unit’s inspection door! Wait a
few minutes before you open the
inspection door so that the fans
have time to stop and possible air
heaters have time to cool down.
There are no components inside the
electrical equipment cabinet that
can be serviced by the user. The
servicing of these components must
be delegated to service personnel.
Do not restart the ventilation unit
before you’ve identified the cause
of the fault and service personnel
have serviced the ventilation unit.
The ECO models (water-
heated air heater)
The ECO model ventilation unit
should be equipped with shut-off
damper so that the water-heated
air heater cannot freeze during a
power failure.
Drying laundry
A tumbler dryer of extract air type
or a drying cabinet must not be
connected to the system due to the
high moisture content in the air it
discharges. However, we recom-
mend the use of a condensing tum-
bler dryer without duct connection.
