Returning The Product; Product Description; Proper Use And Fields Of Application; Construction - Wilo Drain MTC 32 Notice De Montage Et De Mise En Service

PRODUCT DESCRIPTION
Damaged coatings should be repaired immedi-
ately. Only a coating that is completely intact
fulfills the criteria for intended use.
If these rules are observed, your product can be
stored for a length period. Please remember that
elastomer parts and coatings become brittle over
time. If the product is to be stored for longer than
6 months, we recommend checking these parts
and replacing them as necessary. Consult the
manufacturer for details.

3.4. Returning the product

Products that are returned to the factory must
be properly packaged. This means that impurities
have been removed from the product and that it
has been decontaminated if used with fluids that
are hazardous to health. The packaging must pro-
tect the product from damage during transporta-
tion. If you have any questions please contact the
manufacturer.

4. Product description

The product has been manufactured with great
care and is subject to constant quality controls.
Trouble-free operation is guaranteed if it is in-
stalled and maintained correctly.

4.1. Proper use and fields of application

Wilo-Drain MTC 32... submersible motor pumps
are available in two sizes:
• Small for a pump head up to 33 m
• Large for a pump head from 39 m up to 55 m
The submersible motor pumps are suitable for
intermittent and continuous operation, pumping
the following fluids:
• Without explosion approval:
• Sewage and wastewater with the usual admix-
tures
• Foul water from toilets and urinals (provided no
explosion protection is required)
From shafts, pits and pumping stations that are
not connected to the public sewer system.
• With explosion approval:
• Sewage and waste water
• Waste water containing feces
• Municipal and industrial waste water
From shafts, pits, pumping stations and pressure
drainage systems that are connected to the pub-
lic sewer system.
The submersible motor pumps must not be used
for pumping:
• Drinking water
• Fluids with hard components such as stone,
wood, metal and sand.
Installation and operating instructions Wilo-Drain MTC 32
ELECTRICAL hazard
When using the product in swimming pools or
other accessible pools, there is a risk of elec-
trocution. Note the following information:
• Use is strictly forbidden if there are people in
the pool!
• If there are no people in the pool, protec-
tive measures must be taken according to
DIN VDE 0100-702.46 (or the appropriate
national regulations).
The product is used for pumping wastewater.
Therefore, pumping drinking water is strictly
prohibited!
Proper use also includes observation of this man-
ual. Any other use is regarded as improper.
4.1.1. Notes on compliance with EN 12050-1/
DIN EN 12050-1
Without explosion approval
Units without explosion approval meet the re-
quirements of the EN 12050-1 standard.
With explosion approval
Units with explosion approval meet the require-
ments of the EN 12050-1 standard.

4.2. Construction

The Wilo-Drain MTC units are floodable submers-
ible waste water motor pumps with an external
macerator, which can be operated vertically as
both stationary and portable wet installations.
Fig. 1.: Description
1 Cable
2 Handle
3 Motor housing
4.2.1. Hydraulics with upstream macerator
The hydraulic housing and impeller are made of
cast iron. Multiple-channel impellers are used.
The upstream macerator is made of carbide.
The discharge port is a horizontal threaded flange
connection.
The product is not self-priming, in other words,
the pumped fluid must flow in either automati-
cally or with an upstream pressure device.
4.2.2. Motor
The motor housing is made of cast iron.
Three-phase dry impeller motors are used. The
motor is cooled by the fluid around it. The waste
heat is directly transferred via the motor housing
to the pumped liquid. Therefore, these units must
always be submerged for continuous operation
(S1). The units can be used in short-term mode
(S2) and interval mode (S3) when the motor is
either submerged or above the fluid.
4 Hydraulic housing
5 Discharge port
English
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