Normal Operation; Manual Pump Start; Additional Functions - Kessel aqualift f Installation, Operating And Maintenance Instructions

If during initialization an error was detected, a temperature
error will be displayed on the control unit. If an additional
error was detected, this will also be displayed on the control
unit. In either case the system is not ready for operation mea-
ning the control unit's plug should be removed from the out-
let and the error should be inspected and corrected (see
Warning and Error table).
If only a warning was detected and displayed during initia-
lization then the system is operational (see Warning and
Error table).

6.4 Normal operation

When the ON level or the ALARM level is reached, the ac-
cording level switch closes (activates). When the ON level or
the ALARM level then goes below the switching point the
switch opens (deactivates).
The red ALARM LED shows that the ALARM level was rea-
ched. The orange LEVEL / LEVEL LED shows that the pump
on level was reached. The orange PUMP LED shows that
the pump is currently in operation
A. Level Control (this is the factory setting)
A.
When the ON level is reached by incoming wastewater
into the lifting station, the pump start delay begins. After
this short delay the motor will begin activation and run until
the level falls below the activation level. When the level
falls below the activation level a pump stop delay begins.
As soon as this short pre-programmed pump stop delay
is over, the pump will stop.
B. Pump Run Time Control with interruption
B.
When the ON level is reached by incoming wastewater
into the lifting station, the pump start delay begins. After
the delay is over the pump begins operation and the Pump
Run Time will begin. After the pre-set pump run time is
over (regardless of the current wastewater level currently
in to the storage tank) the pump will stop.
If the level at this time is still above the pump ON level the
pump will begin again to operate as soon as the pump start
delay elapses and will run until the Pump Run Time is up.
Depending on the level of wastewater inside the holding
tank, this process may repeat itself until the wastewater
level has fallen below the pump ON level.
C. Pump Run Time Control without interruption
C.
When the ON level is reached by incoming wastewater
into the lifting station, the pump start delay begins. After
the delay is over the pump begins operation and the Pump
Run Time will begin. After the pre-set pump run time is
over the pump will stop operation if at that time the wa-
stewater level is below the pump ON level. If the waste-
water level is still above the pump ON level after the pre-
set pump run time has elapsed, the pump still stop but
6. Commissioning
then immediately begin operation without any pump start
delay. The pump will then continue running until the wa-
stewater level has fallen below the pump ON level.

6.5 Manual Pump Start

The pump can also be started by simply pressing the 'Pump'
button on the control unit. The pump will run as long as the
button remains pressed or for a minimum of two second. The
pump will run regardless of the wastewater level inside the
storage tank. While the pump is running the orange 'Pump'
LED will blink.
CAUTION:
Operating the pump without water causes heat build
up inside the motor and results in increased wear and
tear on the motor. Excessive operation of the motor
without water for over 5 minutes can lead to irrepa-
rable damage to the pump. Damage resulting from
this not covered by the warranty.

6.6 Additional functions

• Anti-blocking function
In order to keep the motor in proper working condition, the
motor will automatically turn itself on for 2 seconds in the
case that it has nor operated over the last 7 days.
• Potential free contact
• The potential free contact will pass on a warning signal in
for any warning or error that may occur with the pump as
well as a power loss.
• Under Current
• When the control senses a under power condition (for ex-
ample the motor is running without water)
- an under power error signal will be displayed by the con-
trol unit
- the pump will no longer operate
- if due to this the control goes into error mode, the process
is stopped.
• Over Current
• In order to prevent damage to the motor due to over current
(for example outlet blockage or jammed impeller) the pump
initially turns itself off. In an attempt to free the blockage,
the motor will automatically turn itself on three times in the
following manner:
- Control unit senses over current
- Pump is turned off automatically
- An over current error is displayed
- The control unit waits three second plus the pump start
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