Information On Transport, Handlng And Storage Of The Machine - Elektror RD 0 Betriebs- Und Montageanleitung

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eration. The blower must not under any circum-
stances be operated with the intake port open,
and should, therefore, be covered with a wire
guard in conformity with DIN EN ISO 13857
(danger of injury from impeller!)
1.6 Blowing effect
Warning!
The blowing effect is very powerful on the ex-
haust side. Sucked in objects may be ejected at
very high speed (danger of injury).
The blowers are designed for delivery of clean
air only. To reliably prevent the sucking-in of
foreign objects or contaminants, which might be
discharged, these objects have to be removed be-
fore entering into the blower by installing a fi lter.
Do not reach into the exhaust.
1.7 Temperature
Warning!
The blower housing assumes the temperature of
the conveyed medium during operation. If this
is above +50° C, the blower must be protected
against direct contact by the operator
(risk of burning!).
Warning!
The motor housing heats up during operation. If
the temperature rises above +50 °C, the blower
must be protected by the operating company
against direct contact
(risk of burning!).
In the case of high-power models in particular, the tempera-
ture of the conveyed medium can increase as it fl ows from
the intake side to the exhaust side. The temperature differ-
ence can be in the region of up to +20°C, depending on the
operating conditions. This varies from one model to another.
1.8 Motor circuit breaker
Before putting the blower into operation, be sure to safeguard
the drive motor with a motor circuit-breaker (this does not
apply to frequency-converter-operated appliances). Where
appliances are frequency-converter-operated, the existing
temperature sensor (PTC resistor sensor) or temperature
switch (normally-closed contact) must be connected to the
converter and evaluated.
1.9 Noise emission
The noise generated by a blower is not constant throughout
the performance range. For details of noise emission levels,
please refer to the table on pages 20 and 21.
In some cases, sound insulation may be necessary (it is rec-
ommended that emission levels be measured by the opera-
tor). Sound insulation must be provided by the operator to
avoid exceeding the statutory maximum levels at the work-
place and in the immediate vicinity of the blower.
No sound insulation of any kind whatsoever should cause
the ambient temperature to exceed +40°C at the drive motor
Operating and assembly instructions RD
(this is not permissible).
1.10 Electrical hazards
Before carrying out electrical work, the appliance must
always be switched off and protected against accidental re-
starting. Check that no voltage is present.
1.11 Speeds
Warning!
The maximum speed stamped on the motor rating
plate must never be exceeded in order to prevent
personal injury. The blower is at risk of mechani-
cal damage if the speed is exceeded.
This can cause serious injury or death!
Each component on the blower has unique natural frequen-
cies. These can be induced by certain blower speeds, which
may result in resonance mode.
The blowers are designed in such a way that resonance does
not generally occur at a constant operating speed.
This may be induced in certain circumstances when the
speed is changed if the blower is operated on a frequency
converter. These circumstances are also infl uenced by the
customer's individual installation situation or ventilation con-
nection.
These natural frequencies must be excluded by parametris-
ing the frequency converter accordingly should they be pre-
sent within the speed range of the blower.
A minimum rotary frequency of 5 Hz should be ensured with
devices suitable for operation with a frequency converter (50
/ 60 Hz) and a minimum frequency of 35 Hz with fast rotat-
ing frequency converter devices (> 60 Hz) depending on the
frequency converter type.
2 INFORMATION ON TRANSPORT,
HANDLNG AND STORAGE OF THE
MACHINE
2.1 Transportation and handling
• Prior to installation and putting into service, check all parts
for transit damage. A damaged blower is a potential safety
hazard and, therefore, should not be put into service.
• Do not store the blower unprotected in the open
(protect against moisture).
• Attach hoist securely. Only use hoists and load
suspension devices with suffi cient load-carrying capacity.
Secure the route of transportation.
Note!
The eye bolt on the motor must not be used to lift
the entire blower. This is used if the motor needs
to be (dis-)assembled.
EN
11