- 52
-
ENGLISH
INSTRUCTIONS FOR USE
THE ELECTRONIC CIRCULATOR
(low-consumption pump)
The product has a circulator with an electronic motor to save
electricity and comply with the European regulations.
Electronic control of operation:
a) Control mode
Δp – c
In this mode, the electronic controller keeps the differential
pressure generated by the pump at a constant set value of H s.
We summarize the signals that low-consumption circulators
can display with the LEDs located on the pump controls
LED
Green led
on
The green
led fl ash
quickly
The led
fl ash with
light red/
green
The led
fl ash with
red light
Led off
MEA-
NING
Working
pump
The pump
is ready to
work but
doesn’t
turn
Pump out
of service
No supply
voltage
WORK
CONDI-
TION
The pump
works in
base of its
settings
The pump
works 10
minutes
to purge
the air.
After it is
necessary
to set the
power
The pump
will start
to work
automa-
tically
when the
problem
is solved
The pump
is stopped
(blocked)
The pump
doesn’t
receive
the vol-
tage
CAUSE
Normally
work
Normally
work
- under-
voltage U
< 160V
overvol-
tage U >
253V
- Engine
tempera-
ture too
high
The pump
doesn’t
start auto-
matically
- The
pump
isn’t con-
nected on
the mo-
therboard
- The led
is defec-
tive
- The
pump is
defective
RESO-
LUTI-
VE AC-
TION
- Check
the vol-
tage
195V < U
< 253V
- Check
the water
tempera-
ture
Change
the pump
- Check
the wire
connec-
tion
- Check if
the pump
works
- Change
the pump
b) Control mode Δp – v
In this mode, the electronic controller varies the pressure
differential between the set value Hs and 1/2 H s. The pressure
differential varies with the volume fl ow.
c) Venting procedure
This procedure allows the expulsion of air present in the
hydraulic circuit.
After manual selection of the “AIR” mode, the pump will
automatically alternate between maximum and minimum speed
for 10 minutes.
At the end of the procedure, the circulator will go to the pre-set
speed. You can then select the desired mode of operation
Pressure differential
Volume fl ow
Pressure differential
Volume fl ow
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