5
6
3
2
4
1
Made in Italy by
DGFLOW srl Via Emilia, 5
46030 Bigarello (Mantova) Italy
tel. +39 0376 340922
fax. +39 0376 249525
info@dgflow.it - www.dgflow.it
CODE:
V / Hz:
I max:
P start:
B
50066/115
~230 / 50 - 60
16
A
1.5
Bar
SN 15060002
Exploded view of spare parts
Attention
: when ordering 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.
1 - Circuit board cover
2 - Pressure gauge
3 - Circuit board
4 - Cable bushings
5 - Valve unit
6 - two-pieces joint with OR
Article
Version
Size
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.
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
2014/35/CE Low Voltage Directive
2011/65/CE (RoHS)
2012/19/CE - 2003/108/CEE (WEEE)
2014/30/CE Electromagnetic Compati-
bility Directive (EMC)
EN 60730-2-6
EN 61000 6-3
Bigarello 01.06.16
DGFLOW S.r.l.
President
Stefano Concini
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
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
= Off
= On
= Flashing
