Maintenance, Service, Spare Parts; Routine Maintenance; Extraordinary Maintenance; Troubleshooting - Lowara FHF-ATEX3 Serie Instrucciones Suplementarias Para La Instalacion Y El Uso

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6.3.2 Suction From a Lower Level (Suction Lift)
Refer to the relevant electric pump manual.
6.4 Checking the Rotation Direction of Three-Phase Motors
When the pump has been electrically connected (➜ section 6.2) and primed (➜ section 6.3), make sure the on-off valve downstream from the pump is clo-
sed. Start the pump and check the direction of rotation through the motor fan cover. The correct rotation direction is indicated by arrows on the pump and/or
the pump/motor support (clockwise rotation when facing the fan cover side). If the rotation direction is incorrect, stop the pump, disconnect the power sup-
ply and exchange the position of two wires in the motor's terminal board or in the electric control panel.
6.5 Operation
Refer to the relevant electric pump manual.
Contrary to the directions found in section 6.4 of the manual for the FHF and SHF (code 001073145), you must not disassemble the
pump and modify the impeller.
Please contact our Sales and Service Department if you need a pump with a reduced impeller diameter.
If a pump installed in a location where freezing may occur remains inactive, you must drain it through the drain plugs. This operation is
WARNING
not necessary if suitable antifreeze has been added to the water.
Make sure that the drained liquid does not cause damage or personal injuries.
7. Maintenance, Service and Spare Parts
Maintenance operations must be performed by qualified personnel authorized by the manufacturer.
Please contact our Sales and Service Department.
7.1

Routine Maintenance

The pump/electric pump does not require any scheduled routine maintenance, except for the flexible coupling. In general, we recommend that you check the
following aspects, or some of them, at varying intervals depending on the operating conditions: pumped liquid leaks, delivery pressure, starts per hour, noise,
triggering of the electrical protections (relays, fuses,...).
If the user wishes to draw up a maintenance schedule, he/she must keep in mind that the deadlines depend on the type of liquid pumped and the operating
conditions.
Refer to the motor and flexible coupling operating instructions provided with the electric pump.
7.2

Extraordinary Maintenance

Please contact our Sales and Service Department, specifying the exact type of pump/electric pump and the identification code
Refer to the motor and flexible coupling operating instructions provided with the electric pump.
7.3 Service
For any requirement, please contact our Sales and Service Department, specifying the exact type of pump/electric pump and the identification code.
7.4 Spare Parts
Please contact our Sales and Service Department, specifying the exact type of pump/electric pump and the identification code

8. Troubleshooting

PROBLEM
The electric pump does not start.
The main switch is on
The electric pump starts up but the thermal
protector is immediately triggered or the fuses
blow
16
PROBABLE CAUSE
No power supply
Triggering of thermal protector incorporated in the
pump (if any)
Triggering of thermal relay or motor protector found
in the electric control panel
Pump or auxiliary circuits protection fuses blown
Triggering of protection device against dry running
Power supply cable is damaged
Electric motor short circuit
Thermal protector or fuses not suited to the motor
current
Motor overload
Information for users and maintenance personnel
POSSIBLE SOLUTIONS
Restore the power supply
Wait for the pump motor to cool down
Reset the thermal protector
Replace fuses
Check the water level in the tank or the water
system pressure. If everything is in order, check the
protection device and its connection cables.
Check the components and replace as necessary.
For motor replacement, please contact our
Sales and Service Department
Check the operating conditions of the electric
pump and reset the protection

Information for users