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6.1 General instructions
Commissioning
The commissioning of the Aqualift F should be handled by a
licensed professional. The system should be filled with water
(by draining a drainage fixture connected to the Aqualift F)
and the pump should be allowed to activate twice. During this
text be sure that the pump does not run dry. The following
should be checked prior, during and after the tests:
a) lectrical connections and fuses of the wastewater lifting
station all meet the I C requirements
b) The direction of rotation of the motor / impeller is correct
c) The gate closure valve is watertight and working properly
d) The settings and activation levels of the float switches is
correct
e) The entire system, valves, fittings and pipes are properly
connected and watertight
f) Check frequency and voltage of the system
g) Check of the non-return valve
h) Warning and malfunction alarms are in working order
i) Outlet pressure pipe is watertight and securely connected
j) Motor protection switches
k) Check of the emergency manual pump if available
l) Controlling lamps and counters;
m) Functional check of the perhaps installed hand pump.
The commissioning of the system should be protocolled in writ-
ing, data such as motor settings and hours of operation should
be entered into this document. Commissioning should only be
handled by a licensed professional. DIN 1986 Part 3 should be
followed during the commissioning
E amination:
- of the company data
- of the oil state
- the rotation direction
- of the electric connections
- of the correct installation of the pump
The pump must be completely filled with the pum-
ping medium in order to prevent an explosive at-
mosphere from developing. The pump can only be
operated so that air cannot enter the pump housing.
Commissioning
Before commissioning it must be checked that the
wastewater level is not below the ‘Minimum Waste-
water Level’ (See Section 4.4).
During S1 operation of the pump, the pump should be com-
pletely submersed. Operating the pump not submerged will
cause premature wear and tear on the pump.
6.1.1 Intake of floating matter
Pumps with S-impellers are recommended for pumping wa-
stewaters with floating matter. In these cases, it is recom-
mended that the pumps run in a slightly tilted position. In ad-
dition, S-impellered pumps should run for an additional 10
seconds after the intake level has been reached.
6.1.2 Pumping medium temperature
Max pumping medium temperature of explosion rated
pumps – 40 deg C.
The operator of this pumpstation must ensure that the ope-
rational temperature of this system (pumping medium
temperature) does not exceed this level.
Do not operate this system with pumping mediums
above the noted maximum temperature.
6.1.3 Pump Starts
The maximum pump starts per hour must not exceed 30.
6.1.4 Operating Voltage
Die höchstzulässige Abweichung der Betriebsspannung be-
trägt:
The highest allowable departure from operating voltage is:
± 10% with non explosion proof systems
± 10% with explosion proof systems
The maximum allowable voltage difference between the pha-
ses is 1%
6.1.5 Density of Pumping Medium
The max specific weight of the pumping medium is 1.1. Plea-
se contact the manufacturer for using this system with pum-
ping mediums with a specific weight greater than 1.1.
6.2 on-operating conditions / Storage
6.2.1 Storage of new pumps
- Pumps should be stored in the vertical position in a dry
location in their original packaging
- Spray the interior side of the pump housing with oil.
6.2.2 Requirements for longer duration storage
6.2.2.1 Pump check without pump removal
In order to insure proper pump operation, the pumps should
be manually run 4 times per year for a short period of time
(approx 1 minute). Pre-requisite to this check is that sufficient
pumping medium is inside the pumping chamber (above
Level 1 mark – see illustration on page 15)
6.2.2.2 Storage of removed pumps
Before storing pumps that have already been in service, all
check up and maintenance work should take place including
lubricating the pumps as discussed in 6.2.1.
6. Commissioning