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4.2 Pressure connection
The pressure port is equipped with a check valve. PVC tubing with an inner diameter of 9mm is to
be tightly connected to the pressure port (accessory, model Neotech 360-6MT is equipped with 6 m
of PVC tubing), see figure 3.
The PVC-tubing is to be secured with a hose clamp (not supplied) avoiding any kinks, ties and
connected to the drain pipe of the canalization.
In case of an installation in the basement below the level of backed-up water (locally defined;
generally the upper edge of the street) it must be ensured that the pressure piping is lead above this
level and then connected downward to the drain pipe.
WARNING: In case of non-observance the basement may be flooded in the event of
a flow back from the canalization!
4.3 Signalling cable
In addition to the power cord (POWER), the pump is also equipped with a signalling cable (ALARM).
See figure 4
Figure 4 - Inlet adapter
The signalling cable (dry contact) can be used to either conduct a safety shutdown of the
condensing boiler (COM and NO) or to activate an external low voltage alarm system (COM and
NC). See figure 5 for contact configuration.
Please refer to the instruction manual of the condensing boiler for the connection as
a safety shutdown or to the manual of the alarm system for the connection as an
alarm.
4.4 Testing
WARNING: Pull out the tab before testing or operating (see figure6)
The operation of the pump can be tested by activating the test-switch without filling the tank by
using a screwdriver. Insert the screwdriver in the respective opening to activate the switch and start
the pump. The switch is deactivated by removing the screwdriver and the pump stops (see figure 7).
This test is only to be conducted briefly for a couple of seconds to avoid the pump from being
damaged due to running dry.
It is imperative to remove the screwdriver again!
Figure 6
5. Limitation of use and improper operation:
WARNING:
This pump may not to be used for waste water, in particular liquids
containing solids liquids with abrasive content as well as flammable and explosive
liquids.
6. Maintenance
WARNING: Ensure that the power is disconnected before performing any
service or maintenance!
The proper function of the pump, its wear parts and its product life are mainly dependant on regular
servicing and maintenance of this unit. Particulates settle on the bottom of the tank in the course of
time. This sediment can lead to pump clogging and block the float switch. It is therefore
recommended to service the pump, piping, inlets and pressure port biannually and, if necessary,
clean the respective areas and parts. This is especially necessary in connection with the general
maintenance of the heating system prior to the start of the heating period. In the course of time and
Figure 5 - Contact configuration, signalling cable
Figure 7
7
Figure 8
GB
B
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