Piusi EX 50 12V, Руководство пользователя

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M0217 EN 33
EN
R NOISE LEVEL
Under normal operating conditions, noise emission of all models does not exceed
74 dB at a distance of 1 metre from the electric pump.
S PROBLEMS AND SOLUTIONS
For any problems contact the authorised dealer nearest to you.
PROBLEM POSSIBLE CAUSE CORRECTIVE ACTION
THE MOTOR IS NOT
TURNING
Lack of electric power Check the electrical connections
and the safety systems.
Rotor jammed Check for possible damage
or obstruction of the rotating
components.
Motor problems Contact the Service Department
THE MOTOR TURNS
SLOWLY WHEN START-
ING Low voltage in the electric
power line Bring the voltage back within
the anticipated limits
LOW OR NO FLOW RATE
Low level in the suction tank Refill the tank
Foot valve blocked Clean and/or replace the valve
Filter clogged Clean the filter
Excessive suction pressure Lower the pump with respect to
the level of the tank or increase
the cross-section of the piping
High loss of head in the delivery
circuit (working with the by-pass
open) Use shorter piping or of greater
diameter
By-pass valve blocked Dismantle the valve, clean and/
or replace it
Air entering the pump or the
suction piping Check the seals of the connec-
tions
A narrowing in the suction
piping Use piping suitable for working
under suction pressure
Low rotation speed Check the voltage at the pump.
Adjust the voltage and/or use
cables of greater cross-section
The suction piping is resting on
the bottom of the tank Raise the piping
INCREASED PUMP
NOISE
Cavitation occurring Reduce suction pressure
Irregular functioning of the
by-pass Dispense until the air is purged
from the by-pass system
Presence of air in the fluid Verify the suction connections
LEAKAGE FROM THE
PUMP BODY Seal damaged Check and replace the seal
THE PUMP DOES NOT
PRIME THE LIQUID
Suction circuit blocked Remove the blockage from the
suction circuit
Malfunction of foot valve fitted
on suction circuit Replace foot valve
The suction chambers are dry Add liquid from pump delivery
side
The pump chambers are dirty
or blocked Remove the blockages from the
suction and delivery valves
THE HEAT SENSOR
ACTIVATES UNDER
NORMAL OPERATING
CONDITIONS Operating fault Contact the technical support..