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]
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A LED provides information about the operation status of the circulator.
Selector
All settings are made using the selector on the housing front.
The selector can be adjusted in a continuous way with a rotation angle
of 270 °.
The arrow on the selector indicates the operating mode chosen.
LED light
The LED light on the front advises the commissioning/fault of the
circulator.
Every operating mode is characterized by a fixed light of different
colour.
After a change of operating mode, the LED pulses 5 times. The pulse
will be a change of brightness intensity of the LED light.
6.2 Operating elements
6.3 Mode of operation
Fig. 6.1 Selector and LED light
LED
COLOR
DESCRIPTION
Green
P mode (Δp-v) – Proportional differential pressure
The circulator head is proportionally reduced with decreasing of the
heat demand from the heating system (flow rate decrease) and is
proportionally increased with increasing demand of the heat demand
from the heating system (flow rate increase).
Blue
min-max mode – Fixed speed
The circulator maintains a fixed speed irrespectively of the heat demand
from the heating system (flow rate).
The speed regulation is done by positioning the selector in a gradual
manner at any point between the Min and Max positions.
Should this performance be insufficient, progressively increase the set
value. Should this performance be excessive or should noise arise due to
the speed of the pumped fluid, progressively reduce the calibration.
Flashing white
Automatic detection of the presence of air - Vent system.
Proceed with the vent routine
Red
Fault or malfunction
Faults, causes and remedies
