Made in Italy by
DGFLOW srl Via Emilia, 5
46030 Bigarello (Mantova) Italy
tel. +39 0376 340922
fax. +39 0376 249525
[email protected] - www.dgflow.it
Disposal
When disposing of any
PRESFLO
®
parts, adhere
to the relevant laws and
regulations in force in
the country in which the
equipment is being used.
Do not dispose of any
polluting parts in
the environment.
Configuration
Settable parameters:
- Running pressure.
When the pressure in the
system falls below the Pm,
PRESFLO
®
starts-up the pump.
The Pm should always be
higher by at least 0.2 – 0.3
bar of the pressure genera-
ted by the column of water
overlooking PRESFLO
®
.
The Pm value can be carried
in the field between 1 bar and
5 bar.
- Maximum current
allowed.
PRESFLO
®
is fitted with a cur-
rent sensor, which continually
detects the absorption of the
pump. If the current remains
above the set Imax value for
a significant period of time,
PRESFLO
®
stops the pump to
protect it from damages (LOCK
condition for OVERCURRENT).
PRESFLO
®
nevertheless allows
the Imax to be exceeded for
short periods during the pump
start-up phase.
For correct functioning,
the Imax should be set at
a value higher by approx.
10 – 20% to the maximum
absorption of the pump
(normally indicated on the
rating plate of the motor).
If this rating value is not known,
it s better to leave the standard
Imax value (16A) to avoid that
the pump stops also in normal
absorption conditions.
The Imax value may be varied
in the field between 4A and
16A.
Manufacturer’s setting:
PRESFLO
®
is supplied with the
following STANDARD CONFIGU-
RATION:
- Running pressure
Pm = 2 ( bar )
- Max. current allowed
I max = 16 ( A )
Statement of Compliance:
we declare, under our own respon-
sibility, that the product in question is in compliance with the fol-
lowing European Directives and national implementation provisions
2006/95/CEE Low Voltage Directive
2002/95/CEE (RoHS)
2002/96/CEE - 2003/108/CEE (WEEE)
2004/108/CE Electromagnetic Compa-
tibility Directive (EMC)
EN 60730-2-6
EN 61000 6-3
Bigarello 27.05.15
DGFLOW S.r.l.
President
Stefano Concini
Configuration
The adjustment of the starting
pressure (Pm) and the ma-
ximum permissible current (I
max) is done by means of two
trimmers shown in FIG.
1. Remove the small screwdri-
ver and adjust the trimmer on
the desired limits, according to
the values shown on the plate
located under the screwdriver.
2. The start-up pressure can
be adjusted continuously from
1 to 5 bar (trimmer A)
3. The maximum permissible
current can be adjusted
continuously from 4 to 12 A
(trimmer B)
4. When you finish adjustment
close the cover
CODE:
V / Hz:
I max:
B
V00103101
~230 / 50-60
16
A
SN 1506003
1
2
3
6
5
4
8
7
Exploded view of
spare parts
Attention
: when orde-
ring spare parts, always
state the position n°
from the diagram below
and the product code
number found in the
pressure-flow regulator
technical data table.
Article
Version
Dimensions
= Off
= Flashing
= On
1 - Circuit board cover
2 - Sensor kit
3 - Circuit board
4 - Valve kit
5 - Two-pieces joint with OR
6 - Cable bushings
7 - Accumulator adapter
8 - Water accumulator
Problems
Signals
Possible causes
Solutions
PRESFLO
®
will not turn on
No power
Check the electrical connections
The pump will
not start when
a tap is turned on
PRESFLO
®
model with an inadequate
start-up pressure (Pm) for the chosen
application.
Relocate PRESFLO
®
to another position
Install a model with a higher start-up pressure (Pm)
Faulty electrical connections or
pump out of service
Check the electrical connections and that the pump
is working
PRESFLO
®
“STAND-BY”
Reset PRESFLO
®
(See Operation, point 3).
PRESFLO
®
in temporary shut down
due to “DRY RUNNING” due to lack
of water
Wait for the automatic restart or press START to
restart manually (See Operation, point 4a)
Maximum pump pressure is
insufficient
Replace the pump with one with more suitable
characteristics
Install a model with a lower start-up pressure (Pm)
PRESFLO
®
in temporary shut down
due to “FREQUENT START-UP”
Wait for the automatic restart or press START to
restart manually (See Operation, point 4b). Remove
any cause of leakage from system or install an
expansion tank
PRESFLO
®
stops due to “OVERCUR-
RENT”
Check if the setting of the maximum current (Imax)
is congruent with the data of the pumps’ rating
plate. If after manually restarting the pump after
correctly setting PRESFLO
®
, it again signals an
anomaly, check that the motor has no mechanical
or electrical problems.
The pump
delivers no or low
pressure
Filters or pipes may be partly blocked Check the water pipes
PRESFLO
®
’s valve will not open
completely
Check that the valve is not blocked by any foreign
objects and clean if necessary
The pump stops
and starts
repeatedly
Leaks within the system (less than
the shut-off flow rate Qa)
Check the hydraulic connections and repair any
leaks. If a leak cannot be repaired, install an
expansion tank
The pump will
not stop
The flow rate is higher than the
shut-off flow rate (Qa)
Make sure that all taps are turned off and that
there are no leaks within the system
PRESFLO
®
’s check valve will not
close or is damaged
Check that the valve is not blocked by any foreign
objects and clean if necessary
