Installing The Pump Unit On A Base - Wilo Atmos TERA-SCH Installation And Operating Instructions Manual

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6.4.2 Selecting the coupling
6.5

Installing the pump unit on a base

6.5.1 Base
Fig. 10: Installing the unit on a base
6.5.2 Preparing the base frame for an-
choring
Fig. 11: Shims on the base surface
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Installation and electrical connection
The required motor power for this duty point lies at 12.5 kW x 1.15 = 14.3 kW. A motor
rated with a P of 15 kW would be the correct choice.
2
Wilo recommends using a B3 motor (IM1001) with base installation, which is compatible
with IEC34-1.
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To establish the connection between the pump with bearing bracket and motor, use
a flexible coupling.
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Select the coupling size according to the recommendations of the coupling manu-
facturer.
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Follow the instructions of the coupling manufacturer.
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After installation on the base and connecting the pipes, check the coupling align-
ment and correct it if necessary. The procedure is described in the chapter "Coupling
alignment".
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After reaching the operating temperature, the coupling alignment must be checked
again.
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Avoid accidental contact during operation. The coupling must be protected in ac-
cordance with EN 953.
CAUTION
Danger of property and material damage!
A missing foundation or incorrect installation of the unit on the base can lead to a
malfunction of the pump. Incorrect installation is not covered by the warranty.
• Only have the pump unit installed by qualified personnel.
• A professional from the concrete sector must be hired for all base work.
The base must be able to support the unit installed on the base frame indefinitely. The
base must be level to ensure there is no tension on the base frame or unit. Wilo recom-
mends using premium, non-shrink concrete of an adequate thickness for manufactur-
ing. This would prevent vibrations from being transmitted.
The base must be able to accommodate the forces, vibrations and impact that occur.
Guidance values for dimensioning the base:
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Approx. 1.5 to 2 x heavier than the unit.
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The width and length should each be about 200 mm greater than the base frame.
The base frame must not be strained or pulled down on the surface of the base. It must
be supported so that the original alignment is not changed.
Prepare drilled holes for the anchor bolts. Position pipe sleeves vertically in the base at
the corresponding points. Diameter of the pipe sleeves: Around 2½ x the diameter of
the screws. This allows the screws to be moved in order to achieve their final positions.
Wilo recommends initially pouring the base up to about 25 mm below the planned
height. The surface of the concrete base must be well contoured before curing. Remove
the pipe sleeves after the concrete cures.
When the base frame is poured out, insert steel rods vertically into the base at regular
intervals. The required number of steel rods is dependent on the size of the base frame.
The rods must project into the base frame by up to 2/3.
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Thoroughly clean the base surface.
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Place shims (approx. 20 – 25 mm thick) on every screw hole on the base surface.
Alternatively, levelling screws can also be used.
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For a length spacing of the fixation bores ≥ 800 mm, shims should be additionally
placed in the middle of the base frame.
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Apply the base frame and level in both directions with additional shims.
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Align the unit when installing on the base using a spirit level (at the shaft/pressure
port).
The base frame must be horizontal; tolerance: 0.5 mm per metre.
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Fit anchor bolts in the provided drilled holes.
WILO SE 2020-10