Installation instructions
Centrifugal roof fan
DRD EC
Version 5
– 05.2014 – subject to errors and alterations
Page 2 of 8
MAICO Ventilatoren · Steinbeisstrasse 20 · D-78056 VS-Schwenningen · www.maico-ventilatoren.com
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1 SAFETY REGULATIONS AND INSTRUCTIONS
These instructions are a component of the device and
must be kept in the immediate vicinity of the device and
accessible to personnel at all times. The personnel
must have read through these instructions carefully and
understood them before beginning any work.
The operating instructions must be handed on if the
device is sold or passed on.
These operating instructions can be duplicated and
distributed to provide information about any potential
hazards.
1.1 Symbols and safety notices
Safety instructions in these instructions are labelled via
symbols and key words that provide information about
the level of hazard involved.
DANGER!
... indicates an imminently dangerous situation
that could lead to death or serious injuries if
not avoided.
WARNING!
... indicates a potentially dangerous situation
that could lead to death or serious injuries if
not avoided.
CAUTION!
... indicates a potentially dangerous situation
that could lead to minor or slight injuries if not
avoided.
NOTE!
... highlights useful tips and recommendations
as well as information for efficient and trouble-
free operation.
1.2 Personnel requirements (qualifications)
The device must be transported, unpacked, operated,
maintained and used in any other manner only by spe-
cialist personnel who have been instructed and are
authorised to do so.
Only specialist electricians may install the device and
carry out the test run and any work on the electrical
systems.
1.3 Safety regulations
The device is used in the commercial sector. The oper-
ator of the device is thus subject to the statutory obliga-
tions on occupational safety.
Alongside the safety regulations in these instructions,
the safety, accident prevention and environmental safe-
ty regulations that are applicable for the area of use of
the device must be complied with.
Alterations, extensions or modifications are not
permitted without the permission of the manufac-
turer.
1.4 Electrical current
DANGER!
Danger of lethal electrocution from elec-
trical current!
There is an immediate danger to life if any
current-carrying components are touched.
Damage to the insulation or to individual com-
ponents can be life-threatening.
Therefore:
Switch off immediately and have repair
work carried out in the event of any dam-
age to the insulation of the power supply.
Employ only specialist electricians to carry
out work on electrical systems.
For all work on the electrical system,
disconnect the power supply and deter-
mine that no voltage is present.
Switch off the power supply and secure it
against being switched on again before
any maintenance, cleaning and repair
work.
Do not bypass or put any fuses out of
operation. Comply with the correct cur-
rents when changing fuses.
Keep humidity away from current-carrying
components. This can lead to a short cir-
cuit.
When carrying out any work on the de-
vice, place it on a rubber mat.
CAUTION!
The motor starts up automatically again if a
control voltage is applied or speed setpoint is
stored, e.g. following a power outage. Risk of
injury!
1.5 Electro-magnetic radiation
Influence from electro-magnetic radiation is possible e.g.
in connection with control and regulation devices.
Suitable shielding arrangements should be carried out
on site.
1.6 Storage
Store the packages under the following conditions:
Store dry and free of dust.
Do not expose to any aggressive media.
Avoid mechanical shocks.
Recommended storage period:
max. 1 year