Initial commissioning

Do a test run before operating the lifting unit in automatic mode. A test run examines the correct functioning and impermeability of the unit. It is necessary to include a full pump cycle for the two pumps in the test run.

  1. The lifting unit is installed correctly.
  2. All connections are checked for correctness.
  1. Switch on the system through the switchgear: Main switch to “ON”.
  2. Set automatic mode on the switchgear.
  3. Open all the shut-off valves to fill the collection tank slowly:
    1x shut-off valve in the inlet pipe
    2x shut-off valves for the solids separation tanks
    2x shut-off valves in the discharge pipelines
    On-site shut-off valves in the discharge pipe if necessary
  4. Switch on and off the two sewage pumps alternately through level control device.
  5. Do no less than two full pumping operations of all pumps for a test run.
  6. To examine the duty point, fill the discharge pipe fully with water. Do more test runs until the discharge pipe is fully filled.
  7. Close the shut-off valve in the inlet. In usual case, the lifting unit does not switch on again because no more fluid flows in. NOTICE! If the lifting unit switches back on again, then the shut-off valve in the inlet or a non-return valve is leaking. Examine the installation and consult customer service.
  8. Examine all screw connections, pipe connections and the collection tank for impermeability.
  9. If there are leaks, tighten the screw connections to the correct torque settings.
  10. If there are no leaks, the lifting unit can run in automatic mode.
  11. If the system will not be used immediately in regular operation, switch the switchgear over to standby mode.

NOTICE

notice

Long system off-times

For longer time of shutdown, close the shut-off valves and switch off the switchgear.