Wilo TOP-S Instrucciones De Instalación Y Funcionamiento página 14

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7.1 Installation
• The pump must be installed in a dry, well ventilated and frost-free place.
CAUTION! Possible damage of the pump!
Foreign materials such as dirt and solder can effect the pump operation.
• It is recommended that any welding and soldering work be done before
installing the pump.
• Thoroughly flush the system prior to installing and operating the pump.
• Foreign material in the system resulting from construction may damage the
pump and is not warrantable
• The pump must be installed in an easily accessible position to facilitate
inspection or replacement.
• The pump should never be located at the lowest point of the piping system,
where dirt and sediment collect. Nor should it be located at the highest point of
the piping system, where air accumulates. Please ensure at least a minimum of
three pipe diameters of straight on the suction side of the pump.
• It is recommended that isolation valves be installed on the suction and
discharge side of the pump.
This will save having to drain and refill the system if the pump needs replacing.
The valves are to be installed so that any water that escapes cannot drip onto
the pump motor or terminal box.
• An arrow on the pump housing indicates the direction of water flow (Fig. 3, Pos. 1).
• Pump must be installed with the shaft in the horizontal position in such a way
that it is not stressed by the pipework (Installation positions in Fig. 2).
• It is recommended that pressure gages be installed in the suction and discharge
volute flanges (Fig.1b, Pos.2) to check pump and system performance.
• In order to obtain the correct terminal box position the motor housing can be
turned after removing the four allen screws (Fig. 4).
WARNING! Risk of burning!
If the pump is already installed in the system, the system must be drained or
the isolating valves on both sides of the pump must be closed before the
allen screws are removed as the pumped liquid may be scalding hot and/or
under pressure.
Do not start the pump until the system has been filled with liquid and vented.
• Permitted terminal box positions see Fig. 2
CAUTION! Possible damage of the pump!
When rotating the motor housing, ensure the O-ring between the cartridge
and pump housing (volute) does not become damaged.
• Carefully lift the pump head and rotate it so that the terminal box is in the
desired position.
Replace the pump head onto the pump housing and thighten the allen screws
evenly in a diagonal method.
8 Subject to technical alterations! WILO SE 02/2016