ELECTRONIC CIRCULATOR FOR HEATING SYSTEMS - Art. P329
ICMA S.p.a. - Heating Technologies - www.icmaspa.it
FI.P329.EN.C - 1 /2022
Icma SpA - Via Garavaglia, 4 - 20012 Cuggiono (MI) ITALY Tel: +39 02 97249134 - +39 02 97249135 - www.icmaspa.it - [email protected]
Icma SpA - Via Garavaglia, 4 - 20012 Cuggiono (MI) ITALY Tel: +39 02 97249134 - +39 02 97249135 - www.icmaspa.it - [email protected]
14
15
The circulator does not require any special maintenance during operation.
Motor bearings are lubricated by the pumped liquid.
Should you fail to eliminate the cause of the malfunction, refer to the Distributor or nearest Service Center.
Before each maintenance intervention, disconnect power supply and
wait for the circulator to cool.
9. MAINTENANCE
10. FAULTS, CAUSES AND REMEDIES
10.1 Fault finding table
FAULTS
CONTROL
PANEL
CAUSES
REMEDIES
The circulator is
noisy
LED on
Suction pressure
is insufficient -
cavitation
Increase the system suction pressure within the per-
missible range.
LED on
Presence of foreign
bodies in the
impeller
Disassemble the motor and clean the impeller
Loud noises of
water circulation
Flashing white
LED
Air in the system
Vent the system (
→
6.4 Automatic detection of
the presence of air - Vent system
)
LED on
The flow is too high
Reduce the rotation speed (
→
7 Circulator setting
)
Circulator is not
running although
the electrical
power supply is
switched on
LED off
Insufficient supply
voltage
Verify voltage value of the electric plant. Verify the
connection of the motor
One fuse in the
installation is blown
Verify the fuses of the plant
The circulator is
defective
Replace the pump
Overheating
Let the pump cool down for some minutes. Then try
to re-start it.
Verify that the water and ambient temperature are
within the indicated temperature ranges.
Circulator is not
running although
the electrical
power supply is
switched on
LED red
The rotor is blocked
Disassemble the motor and clean the impeller if the
Should you fail to eliminate the cause of the
malfunction, refer to the Distributor or nearest
Service Center. doesn’t succeed (
→
10.2)
Insufficient supply
voltage
Verify that the power supply matches the data on the
name plate
