Instructions For Maintenance; Ball Bearings; Safety Related Information On Taking Out Of Operation And Removal; Liability And Exclusion Of Liability - Elektror SVD Serie Betriebs- Und Montageanleitung

Operating and assembly instructions SVD
Device motor output
Motor output < 0.25 kW
EN
0.25 kW < Motor output
<=3.0 kW
3.1 kW < Motor output
<= 7.5 kW
7,6 kW < Motor output
<= 11.0 kW
11,1 kW < Motor output
<= 30.0 kW
A uniform run-up and expiry must be guaranteed within the
run-up and expiry times.
No speed changes must occur during operation that exceed
the speed change during run-up and expiry.
Protection by residual-current-operated circuit breaker
(FI circuit-breaker):
The present IGBT frequency converters produce discharge
currents of >=3.5 mA due to their design principle. These dis-
charge currents can lead to unwanted tripping in systems
protected by a 30 mA-FI circuit-breaker.
If a fault occurs, fault currents can also discharge through the
PE conductor as direct current. If protection is needed on the
supply side by means of an FI circuit-breaker, then an ACDC
sensitive (type B) FI circuit-breaker must be used. Use of an
FI circuit-breaker other than type B can cause death or seri-
ous injury if a fault occurs. To meet the EN 61800-5-1 stand-
ard, the PE conductor must be duplexed and routed through
separate terminals or have a cross-section of at least 10 mm²
Cu.
Operation and connection to public grids:
See 3.4rer.

5 INSTRUCTIONS FOR MAINTENANCE

Wearing parts are subject to the recommended maintenance
intervals (see 5.1 to 5.3). The lifespan of wearing parts (ball
bearings and fi lters) is dependent on the hours in service, the
14
loading and other factors, such as the temperature etc.
Maintenance and repair work itself along with any measures
taken, must only be carried out by staff with adequate knowl-
edge and expertise who undergo regular training. Besides
the operating instructions for the particular unit and the regu-
lations and recommendations for the entire system, the fol-
lowing must also be observed:
Inspection and maintenance intervals:
Depending on the hours in service, loadings and conditions
of deployment, the blower's owner has to decide himself
that the cleaning, inspection and maintenance intervals are
to be.
Immediate inspection and maintenance:
When vibration and oscillation occurs, reduced air capacity.
Note!
Repairs must be carried out only by the manufac-
turer. We will assume no liability where repairs,
modifi cations or exchanging of parts has been
carried out by a third party.

5.1 Ball bearings

The blower is equipped with closed grooved ball bearings
that do not have to be relubricated and have a minimum ser-
Run-up time Expiry time
[s] [s]
5 10
10 20
20 40
30 60
30 100
vice life of 22,000 hours in the case of horizontal drive shafts.
This value halves when they are installed vertically.
Replacement of the ball bearings is recommended before the
minimum service life of 22,000 hours has expired. When in
continuous 24 hour operation or use every day, an in-service
period of 30 months should not be exceeded.
5.2 Sealings and radial shaft sealing rings
For safety reasons, sealing components and radial shaft
sealing rings are to be replaced at least on every occasion
when maintenance involves opening, removing or altering
sealing elements in some other way.
5.3 Fine fi lters
The degree of soiling of the fi lter mats must be checked at
regular intervals, as appropriate to the environmental/de-
ployment conditions and, where applicable, environmental
protection requirements. That is, the owner must ensure that
fi lters are permeable.
5.4 Cleaning
There is a high risk of injury on the inside of the device due to
rotating parts during operation. Decommission the device 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 restarted dur-
ing the entire period.
Also make sure that no other dangerous situation can arise
when restarting after a standstill, 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 would infl u-
ence safety or health protection and, for example, impair the
balanced state 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
Only a skilled electrician must disconnect all of the electri-
cal connections and carry out all other electrotechnical steps
involved in taking the unit out of service.
Dismantling is not permissible until all rotating parts have
come to a standstill and restarting is no longer possible.
For dismantling and transporting away, adherence is required
to the stipulations of 2.1 Transport and handling.
Equipment must be disposed of in the proper manner.
7 LIABILITY AND EXCLUSION OF
LIABILITY
The owner shall bear the responsibility for the correct use of
the device.
Elektror shall not accept any liability for any use of its prod-
ucts and components which is contrary to their intended use.
This shall also apply in particular to use in special applica-
tions and under operating conditions that have not been spe-
cifi cally agreed with Elektror.
Elektror shall not accept any liability for any modifi cations or
alterations to the device or accessories supplied.
Likewise, Elektror shall not be liable for improper, delayed,
neglected maintenance. Neither shall it be liable for any
cleaning and repair work not carried out by qualifi ed Elektror
specialists, nor for the possible consequences.
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