Wilo Drain MTC 32F Serie Einbau- Und Betriebsanleitung Seite 38

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be possible to reach the product safely in its op-
erating and storage locations using the hoisting
gear. The machine must be positioned on a firm
foundation. For transporting the product, the
load-carrying equipment must be secured to the
provided lifting eyelets.
Electric power cables must be laid out in such
a way that safe operation and trouble-free
assembly/dismantling are possible at all times.
The product must never be carried or dragged by
the power supply cable. When using switching
devices, they must have the appropriate pro-
tection class. Switching devices must always be
mounted in such a way that they are protected
from flooding.
When used in an explosive atmosphere, it must be
ensured that the product and all accessories are
approved for this purpose.
The structural components and foundations must
be of sufficient stability in order to allow the
product to be anchored securely and functionally.
The operator or the supplier is responsible for the
provision of the foundations and their suitability
in terms of dimensions, stability and strength.
Never let the machine run dry. The water level
must never fall below the minimum. Therefore,
we recommend installing a level control system
or a dry-run protection system where there are
great variations in the level.
Use guide and deflector plates for the pumped
liquid intake. If the water jet reaches the sur-
face of the water, air will be introduced into
the pumped liquid. This will lead to unfavorable
current and pumping conditions for the unit. As
a result of cavitation, the product will not run
smoothly and will be subjected to increased wear.
5.4. Installation
DANGER of falling!
When installing the product and its accesso-
ries, work is sometimes performed directly at
the edge of the basin or shaft. Carelessness
or wearing inappropriate clothing could result
in a fall. There is a risk of fatal injury! Take all
necessary safety precautions to prevent this.
The following information must be observed
when installing the product:
• This work must be carried out by a qualified
person and electrical work must be carried out by
an electrician.
• Lift the unit by the handle or lifting eyelets, never
by the power supply cable. When using chains,
they must be connected with a shackle to the
lifting eyelets or the carrying handle. Fastening
devices must be technically approved.
• Check that the available planning documentation
(installation plans, layout of the operating area,
intake ratios) is complete and correct.
38
NOTE
• If the motor housing is to be taken out of the
pumped liquid during operation, the operat-
ing mode for emerged operation should be
followed.
• Never let the machine run dry. We recommend
that dry-run protection be installed. If fluid
levels deviate dramatically, a dry-run protection
must be installed.
• Check whether the cross-section of the cable
used is sufficient for the length of the cable.
(For more information, consult the catalog, the
planning manuals or Wilo customer service).
• Observe all regulations, rules and legal require-
ments for working with and underneath heavy
suspended loads.
• Wear appropriate protective clothing/equipment.
• A second person must always be present when
working in shafts. If there is risk of poisonous or
asphyxiating gases forming, the necessary pre-
cautions must be taken!
• Please also observe the applicable national acci-
dent prevention regulations and trade association
safety provisions.
• The coating must be examined before installa-
tion. If defects are found, these must be rectified
before installation.
5.4.1. Stationary wet installation
Fig. 2.: Wet installation
1 Suspension device
2 Return flow prevention
3 Shut-off valve
4 Pipe bend
Guide pipe
5 (to be provided by the
customer)
A Minimum distances in parallel operation
B Minimum distances in alternating operation
A suspension unit must be installed for wet
installation. This must be ordered separately from
the manufacturer. The pipeline system on the
discharge side is connected to this.
The connected pipe system must be self-sup-
porting, i.e. it may not be supported by the
suspension device.
The operating area must be laid out so that the
suspension device can be installed and operated
without difficulty.
1. Install the suspension device in the operating
area and prepare the product for operation on a
suspension device.
2. Check that the suspension device is firmly fixed
and functions properly.
INSTALLATION
6 Lashing gear
Minimum water level for
7a
S1 operation
Minimum water level for
7b
S2 and S3 operation
8 Deflector plate
9 Intake
WILO SE 2016-07 V4.0 DIN A4