Installation Of The Submersible Pump(S); Setting The Float Switches - Kessel Aqualift F Installation Manual

4.3 Installation of the submersible sewage pump(s)
the Aqualift F submersible TPF 1.3 kW and 1.9 kW pumps
CAUTION:
weigh 39 kg. These pumps should only be lifted and in-
stalled in the pumpstation using appropriate lifting and pul-
ley devices. If an installation or maintenance worker
needs to enter the pumpstation this worker should be
equipped with the appropriate safety devices to prevent
slipping and falling and there should always be at least
one observer who remains outside of the chamber
Before installing the submersible pumps(s) check the inside
of the pumpstation to make sure it is free of any debris or
waste. Once the chamber is cleaned, the pump(s) should be
lowered with the aide of a mechanical lowering device (pul-
ley) onto the steel guide rail bars and to the bottom of the
chamber making sure that the pump(s) make firm contact with
the base of the guides. Remove the lowering chain from the
pulley and attach it to the hook located in the upper section of
the chamber so the chain is accessible without entering the
chamber the next time pump service work needs to be done.
Important:
After installing the pump(s) make sure that the closure val-
ves are in the open position (lever should be in the verti-
cal position).
The float switches are set in their appropriate positions at the

4.4 Setting the float switches

factory (see illustration 3.2). It is recommended that the po-
sition of these float switches is not changed as it may nega-
tively effect the operation of the pumps. Please note that the
4. Installation and Assembly
minimum float switch cable length is 20 mm (see illustration
below).
Single Pump Unit
This pumping station is equipped with one submersible se-
wage pump. The system is controlled by 3 float switches. The
function of these 3 float switches are Pump OFF, Pump ON
and ALARM. The float switches have been installed and set
at the factory. The float switches have been set so that the
ALARM float switch will activate when the wastewater level
inside the chamber reaches the bottom of the inlet pipe level
of the pumpstation. If other pumping levels are desired, the
float switches must
be changed on-site. Important is that the ALARM float switch
activation point is not set above the inlet pipe elevation and
that the Pump OFF float switch is not set too low – this will
prevent the pump from intaking air. Ideally, the submersible
pump should be totally underwater before pumping begins.
Double Pump Unit
This pumping station is equipped with two identical submer-
sible sewage pumps. The system is controlled by 4 float swit-
ches. The function of the 4 float switches are Pump OFF,
Pump 1 ON, Pump 2 ON and ALARM. The float switches
have been installed and set at the factory. The float switches
have been set so that the ALARM float switch will activate
when the wastewater level inside the chamber reaches the
bottom of the inlet pipe level of the pumpstation. If other pum-
ping levels are desired, the float switches must be changed
on-site. Important is that the ALARM float switch activation
point is not set above the inlet pipe elevation and that the
Pump OFF float switch is not set too low – this will prevent
the pump(s) from intaking air. Ideally, the submersible pumps
should be totally underwater before pumping begins.
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