DVZ - SERVICES GmbH DVZ - SKA - „BIOMASTER“ - MS Engineering

9.11 DISCHARGE PUMP CIRCUIT
1. Press the reset button on the overloadprotection inside the control panel and turn the
pump on to determine whether the pump motor overloaded and dropped out of the
circuit.
2. Make sure that all overload heater coils on the pump starter are the size specified on
the electric scheme and check setting for current according motor type plate.
3. If the pump will not start and the pump starter is energised, the problem is in the motor
itself, the motor wiring, or the main contacts of the starter.
4. For mechanical malfunctions, check the specific manufacturers documentation
enclosed in this manual.
9.12 ELECTRODE TYPE LEVEL SWITCH
Clean tips of electrodes for dirt or corrosion. Clean with sandpaper, check isolation, for
specific values and test, refer to enclosed documentation for the level relay enclosed with
vendor's data. Function can be tested by simulation of waterlevels, just connect relevant
electrodes temporarily with electric wire. A low, save voltage is used on the levelcontroler.
NOTE: When replacing a defective level switch, the pipe threads must be sealed
with teflon tape or pipe dope.
9.13 HIGHWATERLEVEL
1. Silence the alarm
2. If the problem cannot be isolated and repaired quickly, bypass the sewage
overboard.
3. Make sure that all valve settings and control settings are in accordance with
section „SET UP FOR OPERATION“.
4. Check that the valves from the unit discharge connection to the overboard line is
fully open.
5. Inspect pump starter relay and verify that it is energised. Check that pump is running.
If running but no falling level (sightglass) De-aereate pump and observe level again.
If not cured, open up the pump for inspection.
6. If the system is operating properly, the problem is an excessive volume of water
entering the system. Check for stuck or leaking flush valves and fixtures.
Issue: 10.06.2009 Instruction Manual DVZ-SKA-“BIOMASTER“ Page 19 of 37
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