Instructions For Maintenance; Ball Bearings; Safety Related Information On Taking Out Of Operation And Removal - Elektror HRD 7 FU 120 Betriebs- Und Montageanleitung

Operating and assembly instructions HRD 7 FU 120
Warning!
A higher frequency (speed) than the frequency
(f ) that is specifi ed on the rating plate must
B
never be set on the converter in order to avoid
EN
personal injury and/or damage to the blower and
motor overload. The temperature sensors are
connected to the corresponding converter inputs
to protective the drive motor.
It is absolutely essential that you observe the
installation and safety instructions described in
the respective operating or application manuals
provided by the frequency converter suppliers to
guarantee a safe and trouble-free operation.
Protection by residual current circuit breakers
(FI-circuit breakers):
The current IGBT frequency converters inherently produce
leakage currents > =3.5 mA. These leakage currents can
lead to false alarms in systems that are fused using a 30 mA
FI-circuit breaker.
In the event of a fault, residual current can also leak as direct
current via the protective conductor. If protection is required
on the supply side by means of a FI-circuit breaker, it is im-
portant that an FI-circuit breaker is used that is sensitive to
universal current (type B). The use of an incorrect FI-circuit
breaker other than type B can lead to death or serious injury
in the event of a fault.
The protective conductor must be designed to connect twice
via isolated terminals or via a protective conductor cross-
section with a minimum of 10 mm2 Cu to comply with the
EN61800-5-1 standard.
Operation and connection to public supply networks:
See 3.4

5 INSTRUCTIONS FOR MAINTENANCE

Wearing parts are subject to the recommended maintenance
intervals (refer to 5.1 to 5.2). The service life of wearing parts
(ball bearings and fi lters) depends on the operating hours,
the load and other infl uences, such as temperature, etc.
This is in addition to the operating instructions of the device
as well as the rules and recommendations of the entire sys-
tem, note the following:
14
Immediate inspection and maintenance:
The blower must be inspected immediately if vibrations or
reduced air fl ow are observed.
Note!
Repairs must be carried out by the manufacturer.
We cannot accept any liability for repairs carried
out by third parties.

5.1 Ball bearings

Note!
The ball bearings are to be relubricated depen-
ding on the device type.
Refer to the supplier's documentation for the
motor and the relubrication equipment for further
details.
Note!
Check the ball bearings during servicing and
prior to recommissioning.
Operation is only permitted with fl awless ball
bearings!
Note!
In the event of frequently starting up and shutting
down, premature replacement of the bearings will
be required. Determining the time for replacing
the bearings is the sole responsibility of the main-
tenance and servicing personnel, who must make
a safety judgement.
Minimum ball bearing service
Devices
life
HRD 7 FU-120/22
Ball bearing change recommendation
- Prior to reaching the minimum service life
- 20 months following delivery at the latest
- Check after 6 months' storage time; change if necessary
The blower is operated with a drive motor of the company
Emod. For more information, please refer to the nameplate
of the motor or the additional instruction manuals.
The operating hours specifi ed in the table should not be ex-
ceeded during continuous operation/use 24 hours a day.
After a storage period of 6 months, the blower bearings and
motor bearings should be checked before they are mounted
in the blower.
Please contact our Customer Support for further information
about the (dis-) assembly of the blower.
5.2 Cleaning
There is a high risk of injury from the rotating parts on the
inside of the device during operation. Decommission the de-
vice in all cases and wait until all moving parts have stopped
before opening, reaching in or inserting tools into the device.
Secure the device reliably against it being accidentally re-
started during the entire period. Also make sure that no other
dangerous situations can arise when restarting after stand-
ing still, e.g., as a result of a power failure or blockages.
Cleaning or maintenance must not lead to damage or modi-
fi cations to the device and its components that aff ect safety
or health protection and, for example, impair the balance of
the impeller.
When starting up the blower, make sure that all tools or other
foreign objects have been removed from inside the device
and that all covers and protective grilles have been attached
correctly.
6 SAFETY RELATED INFORMATION
ON TAKING OUT OF OPERATION AND
REMOVAL
The disconnecting of all electrical connections and all oth-
er electrical engineering work in connection with taking the
blower out of operation must be referred to a qualifi ed electri-
cian.
The blower may only be dismantled after all rotating parts
have come to a standstill and a safeguard has been provided
to prevent restarting.
Dismantling and removal must be performed in accordance
with the guidelines set out in section 2.1, Transportation and
handling.
Dispose of in the appropriate manner.
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Horizontal motor shaft
20.000 Hours