Pumps or pump units which convey media that are hazardous to health must be
decontaminated. Immediately after completion of the works, all safety and protection devices
must be reattached or reactivated.
Before restart, the points listed in the chapter commissioning must be taken into consideration.
2.7 Unauthorised modification of the machine and fabrication of spare parts
Retrofitting or modifications of the machine are permitted only after having consulted the
manufacturer. Original spare parts and accessories authorised by the manufacturer ensure
the safety. The use of other parts can lead to the removal of liability for the resulting damages.
2.8 Unauthorised modes of operation
The operational reliability is only guaranteed, if the machine is used as intended according to
chapter 1 – General. The limit values stated in the data sheet must not be exceeded.
3. Transport and temporary storage
3.1 Transport
The sewage ejection units of the type series Kompaktboy must not be thrown or dropped.
Furthermore, they should be transported in horizontal position.
3.2 Temporary storage/conservation
For temporary storage and conservation, it suffices if the unit is stored in a cool, dark, dry, and
frost-protected place. The unit should be stored in horizontal position.
4. Description
4.1 General
The sewage ejection units of the type series Kompaktboy are simplex units ready for
connection, short-time flood-proof with gas tight and odour-tight collecting tanks made of
plastics. They are operated with vertical, blockage-free sewage pumps with automatic,
pneumatic level control. They are delivered with all necessary connectors.
4.2 Composition and mode of operation
Due to the lateral inlets DN 50 and DN 100 or the upper inlet DN 50 / DN 100 (high
temperature plastic sewage tube) Sewage (natural incline) is guided into the collecting tank of
the sewage ejection unit Kompaktboy.
In the impact pipe screwed into the top side of the tank the water rises and compresses the air
in the impact pipe until the pressure actuates the dynamic pressure switch in the switch box.
In doing so, the pump is switched on and transports the water from the tank through the
pressure pipe into the higher located channel.
Kompaktboy Duplex units have changeover switch in the switch box which effects the mutually
switch-on of the pumps. Only in case of overboost operation (one pump is not able to manage
the incoming amount of water) the second pump switches-on.
A non-return valve in the pressure pipe prevents the backflow of the water from the pressure
pipe into the tank
The switching device is equipped with an alarm buzzer activated in case of a failure of the
pump(s) or in case of an excessive water level in the tank. Furthermore, there are alarm
contacts inside of the switching device for alarm systems (bell, buzzer, etc.) to be connected
external. For the location, please refer to the circuit diagram of the switching device
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