GB
CH. 5 STARTING THE UNIT (see Fig. 4)
CH. 6 MAINTENANCE AND TROUBLE SHOOTING
Before starting the electropump fill the suction pipe and the electropump body with water by using the
filling cap, making sure that there are no leaks, close the cap and start the electropump
(4)
. Check that
it rotates clockwise when looking at the electropump from the side of the motor fan. On the three phase
electropumps it is possible to invert the rotation by changing the order of two phases.
If the electropump is not used for long periods of time repeat the filling operations before starting it up.
Under normal conditions
MXC / MULTINOX / MULTINOX-VE / MCX
electropumps do not need any type
of maintenance. In order to avoid possible failures, it is advisable to periodically check the pressure
supplied and current absorption. A decrease in pressure is a symptom of wear. An increase in current
absorption is a sign of abnormal mechanical friction in the pump and/or motor.
If the electropump is not going to be used for long periods of time (e.g. an entire season) it should be
emptied completely, rinsed with clean water and put in a dry place.
Before doing any operation, make sure machine is
disconnected from electric power supply.
Electric shock risk
DANGER
THE ELECTROPUMP DOES
NOT PUMP WATER THE
MOTOR DOES NOT RUN
THE MOTOR RUNS BUT THE
ELECTROPUMP DOES NOT
PUMP LIQUID
1) It is taking on air.
2) Wrong rotation direction.
1) - Make sure that the joints are airtight.
- Check that the level of liquid has not
dropped below the foot valve.
- Check that the foot valve is airtight and
is not blocked.
2) Reset the rotation direction.
1) No power.
2) Motor protection tripped.
3) Defective condenser.
4) Shaft blocked.
PROBLEM POSSIBLE CAUSE REMEDY
THE ELECTROPUMP STOPS
AFTER RUNNING FOR A
SHORT PERIOD OF TIME
BECAUSE ONE OF THE
THERMAL MOTOR PROTEC-
TION DEVICES TRIPS
1) Check if there is power and if the plug is
plugged in properly.
2) Verify the cause and reset the switch. If the
thermal has tripped wait until the system has
cooled.
3) Replace the condenser.
4) Verify the cause and unblock the
electropump.
1) Power supply does not conform to
data on plate.
2) A solid object is blocking the impeller.
3) The liquid is too thick.
1) Check the voltage on the power supply
conductor cables.
2) Dismantle the electropump and clean it.
3) Change electropump type.
If the problem has not been eliminated after carrying out the above operations contact the closest
service centre.
7
Use the electropump for the applications listed on the nameplate.
Do not operate the pump dry, since lack of water could cause it to overheat. In
this case, the water inside the system gets very hot, so there is a risk of
scalding. Take off the plug and let the system cool down.
WARNING
WARNING
Do not run the electropump with a completely closed delivery.
WARNING
