Installation Of The Submersible Sewage Pump(S); Setting The Float Switches - Kessel Aqualift F Installation And Operating 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 sec-
tion of the chamber so the chain is accessible without ente-
ring the chamber the next time pump service work needs to
be done. The system allows pumps to be removed from the
chamber without anyone needing to enter the chamber.
After installing the pump(s) make sure that the closure val-
Important:
ves are in the open position (lever should be in the verti-
cal position).
off
Level 1
1) Minimum level – lowest turning off level of pump
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-
4. Installation
off
Level 1
Level 2
sition of these float switches is not changed as it may nega-
tively effect the operation of the pumps. Please note that the
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 completely under water.
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 completely underwater.
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