CAUTION!
Worn impellers can have sharp edges.
5. Oil check. If necessary top up or change oil (if oil chamber
available).
6. Clean the inside of the tank (as necessary, or if especially
required); remove any grease, for example.
7. Check the condition of the collecting tank.
8. Flush the system through with water once every 2 years.
9. Inspect the electrical section of the unit. The control unit
itself is maintenance-free, but if a rechargeable battery is
fitted, then it should be checked regularly to ensure that it
is in good working order. To do so, unplug the unit from the
mains and lift the float of the level controller slowly by hand
and hold it there until the alarm is triggered.
10.
In addition, clean the float if necessary.
When all the servicing tasks have been performed, carry out a
test run and then put the unit back into operation. The service
must be documented, giving details of the important data and
of all the tasks carried out.
Oil check
(Only applies for units 25/2 and 35/2). First of all, unscrew the
hexagon screws or Allen screws around the pump and lift the
pump and impeller off the tank. The drain plug is labelled “Öl”. In
order to check the mechanical seal, the oil, including any resi-
due, must be drained from the oil reservoir and collected in a
clean measuring container.
•
If the oil is contaminated with water (milky), an oil change
must be carried out. Check again after a further 300 operat-
ing hours, but at the very latest after 6 months!
•
However, if the oil is contaminated with both water and pol-
lutants, then not only the oil must be replaced, but the me-
chanical seal as well.
For monitoring the oil reservoir, it is also possible to retrofit the
electrode of our “DKG” seal leak detector in place of the “DKG”
sealing screw.
Changing the oil
(Only applies for units 25/2 and 35/2). To ensure operational li-
ability, the first oil change should be carried out after 300 op
-
erating hours, with further oil changes carried out after every
1000 operating hours.
If the number of operating hours is very low, an oil change
should still be carried out at least once a year.
If wastewater with strongly abrasive constituents is being
pumped, the oil changes should be carried out at correspond-
ingly shorter intervals.
Use HLP hydraulic mineral oil, viscosity class 22 to 46, e.g. Mo-
bil DTE 22, DTE 24, DTE 25, to replace the oil in the oil reservoir.
The quantity of oil required is 1000 ml for the MultiFree pumps
25/2 BW and 35/2 BW.
NOTICE!
The oil reservoir may only be filled with the specified
quantity of oil. Overfilling will result in the pump being rendered
inoperable.
QUICK TIPS FOR REMEDYING FAULTS
WARNING!
Before carrying out any work: Disconnect the pump(s) and the
control unit from the mains by unscrewing and taking out the
pre-fuses, and take action to ensure that no one else can re-
connect them to the power supply.
NOTE!
Work on the control unit must be carried out by qualified
electricians only!
•
System does not work either in automatic or manual mode.
No mains power; check fuses and RCD switch, the operating
mode for the pump should not be set to "0".
•
System does not work, "Pump motor protection" is displayed
The motor protection relay or the motor protection switch
has switched off. Check motor protection settings and set
the rated power for the pump. Acknowledge with the ac-
knowledge button and reset the motor protection switch by
hand.
•
Motor protection shuts off after only a short time
Pump impeller blocked -> Clean (refer to pump manual)
Motor contactor does not switch through all phases->
Replace
Motor fault -> Call customer service personnel
•
Backpressure, water rising slowly
Intake line blocked -> Clean and unblock.
•
Pump delivers too little, high water alarm
Check gate valve in pressure pipe and open completely,
clean non-return valve and flush out pressure line.
•
Pump thermostat
Let the pump cool down, and acknowledge with the OK but-
ton.
•
Display does not show any readings
No mains power; check fuses and RCD switch, switch on the
main switch if necessary.
•
Green LED does not light up
No mains power, check fuses and RCD switch, switch on
main switch if necessary, operating mode of the pump must
not be set to "0".
•
Red LED lights up
The fault is shown in the display; then confirm with the ac
-
knowledge button.
•
No access to the menu
Password incorrect.
10
ENGLISH
Summary of Contents for 1225/2 BW
Page 18: ...Compli 1000 Compli 1200 18 ...
Page 19: ...Compli Sensor 19 ...
Page 20: ...HighLogo 2 610 ECP 1 20 ...
Page 21: ...HighLogo 2 610 ECP 2 21 ...
Page 22: ...HighLogo 2 00 P 2 610 P 1 22 ...
Page 23: ...HighLogo 2 00 P 2 610 P 2 23 ...
