Pentair Water SW series Wartungsanleitung Seite 6

GB
Pipes should be fitted in a position that protects the pump from vibrations, stresses and loads. Therefore, pipe routes
should be as short and direct as possible and avoid an excessive number of bends to limit load losses. The delivery
and suction pipes of SW 33 should have a minimum diameter of 3". It is also necessary to make sure that there
is sufficient space around the pump for maintenance purposes.
CH. 4 ELECTRICAL CONNECTIONS
WARNING
DANGER
Electric shock
risk
DANGER
Electric shock
risk
Electric connections should be made using cables H07RN-F (external connections) or H05RN-F or H07RN-F (internal
connections). For connections, refer to Figure 2 (single phase motors) or 3 (three-phase motors). Single-phase motors
have a continuously running condenser and an in-built thermal protection in the motor winding. The protections for
three-phase motors must be provided by customers. The electric system will have to have a cut-off switch with single-
pole switch.
CH. 5 STARTING THE UNIT
WARNING
WARNING
WARNING
Before starting the pump, fill the filtering body up to the suction level, after loosening the transparent plastic cover
of the filter. To fill pumps below the water level, slowly open the valve on the suction side when the delivery valve is
fully open to allow the pump drainage. Check that the pump rotates clockwise by looking at the pump from the motor
fan side. On three-phase pumps it is possible to invert the rotation by exchanging the two phases. These pumps are
self-priming. Priming time ranges from 1 to 5 minutes, with a suction height of 2÷3 m, in standard conditions (suction
pipe with an internal diameter of 50 mm, water temperature of 20°C, frequency 50Hz).
Ch. 6 MAINTENACE AND TROUBLESHOOTING
DANGER
Electric shock
risk
In ordinary conditions, it is not necessary to service the pre-filter frame on SW pumps. Clean the transparent cover
with water and a mild detergent without using solvents. Clean the filter and re-install it in its housing. Close the
transparent cover and restart the pump. Empty the pump using the drainage screw if the pump has to be stored for
long periods of time or with temperatures below zero. The cover-filter, the drain screw and the nuts of articulated joints
must be tightened manually without using pliers or other tools.
PROBLEM
THE PUMP DOESN'T RUN
THE MOTOR RUNS BUT THE
PUMP DOES NOT PUMP LIQUID
THE PUMP STOPS AFTER
RUNNING FOR A SHORT PERIOD
OF TIME BECAUSE ONE OF THE
THERMAL MOTOR CIRCUIT
BREAKER TRIPS
4
Verify that the voltage and frequency of the pump shown on the
nameplate correspond to those available on the mains.
The installer must make sure that the electric system is grounded in
accordance with the law in force.
Make sure that the electric system has a high-sensitivity circuit
breaker D
Use the pump for the applications listed on the nameplate.
Do not operate the pump without fluids.
Do not oparate the pump when the interception valve on the delivery
side is completely closed.
Make sure the machine is disconnected from electric power supply,
before performing servicing operation.
POSSIBLE CAUSE
1) No power
2) Motor protection tripped
1) The pump is sucking air
2) Wrong rotation direction
1) The power supply does not conform
with the data on the nameplate
2) A solid object is blocking the impellers
3) The liquid is too hot
4) The pump is running without fluids
5) The motor is not properly ventilated
= 30 mA (DIN VDE 0100/739)
1) Verify the presence of voltage
2)Contact your retailer (customer assistance service).
1) a) Make sure that the joints are airtight. - b) Check that the
level of liquid has not - c) Check that the foot valve is airtight
and is not blocked
2)Contact your retailer (customer assistance service).
1) Check the voltage on the power supply cable leads
2)Contact your retailer (customer assistance service).
3) Lower the temperature
4) Check that the pump had not been damaged and remove the
causes, if necessary
5) Increase the air flow or move the pump
REMEDY