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ENGLISH
INSTRUCTIONS FOR USE
THE ELECTRONIC CIRCULATOR
Electronic control of operation:
a) Control mode
'
p – c
In this mode, the electronic controller keeps the differential
pressure generated by the pump at a constant set value of H s.
b) Control mode
'
p – 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
ŏ
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
À
ow
Pressure differential
Volume
À
ow
LED
MEANING
WORK CONDITION
CAUSE
RESOLUTIVE ACTION
Green led on
Working pump
The pump works in base of its
settings
Normally work
The green led
À
ash quickly
The pump works 10 minutes to
purge the air. After it is neces-
sary to set the power
Normally work
The led
À
ash
with light red/
green
The pump is ready to
work but doesn’t turn
The pump will start to work
automatically when the pro-
blem is solved
- undervoltage U < 160V
overvoltage U > 253V
- Engine temperature too high
- Check the voltage
195V < U < 253V
- Check the water temperature
The led
À
ash
with red light
Pump out of service
The pump is stopped (blocked) The pump doesn’t start automa-
tically
Change the pump
Led off
No supply voltage
The pump doesn’t receive the
voltage
- The pump isn’t connected on
the motherboard
- The led is defective
- The pump is defective
- Check the wire connection
- Check if the pump works
- Change the pump
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