DGFLOW PRESFLO MULTI - User Manual

10194507A _rev.03
PRESFLO
MULTI
CODE:
V / Hz:
I max:
B
V00103101
~230 / 50-60
16 A
SN 1506003
RUEN FRIT ES
ELECTRONIC PUMP CONTROLLER
PRESFLO
®
is a device that
starts and stops the pump to
which it is tted, thus replacing
traditional pressure switch /
surge tank systems.
The pump is started when, as
a tap is turned on, the pressure
within the system drops below
the “start-up pressure” (Pm),
and is stopped when the ow
USER’S MANUAL
rate required is zero or less
than the “shut-off ow rate”
(Qa).
The electronics of PRESFLO
®
protects the pump against
abnormal running conditions
such as dry running, repeated
start-ups due to leaks in the
system or overcurrents.
Technical specications
Losses
- Voltage: ~ 230 V / ~ 115 V - Frequency: 50-60 Hz
- Current: 12A, max 16A for 3 sec.
- Protection grade: IP 65
- Start-up pressure ( Pm ): 1÷5 Bar (15-70 psi)
- Shut-off ow rate ( Qa ): 2 litres/min (0,5 gpm)
- Connections: 1”M BSP / 1”M NPT
- Operating pressure: 8 bar (120 psi)
- Bursting pressure: 24 bar (350 psi)
- Weight: 1600 g
- Protection against: dry running
( automatic restart),
repeated start-ups,
overcurrents
Before installing, the product, check
that the RATINGS correspond with those
required.
Operating conditions
A. Compatible/non compa-
tible uids
PRESFLO
®
is suitable for use
with clean water and chemical-
ly non-aggressive liquids. If the
uid contains impurities, a lter
should be tted upstream.
B. Environmental conditions
PRESFLO
®
should not be used
where there is the risk of an
explosion. The temperature
of the location should range
between 0°C and 40°C, and
the humidity should not exceed
90%.
C. Power supply
Make sure that the variation
in the power supply is never
more or less than 10 % of the
RATING value.
Higher values may cause
damage to the electronic
components.
PRESFLO
®
can only be used
with single-phase pumps.
Working area
Flow rate
Pressure
Shut-off ow rate
Start-up pressure
Qa
Pm
Safety regulations
Before installing or using
PRESFLO
®
, read this manual
carefully and thoroughly.
The pump should be installed
and serviced by qualied per-
sonnel, responsible for making
the hydraulic and electrical
connections in compliance with
the relevant regulations.
DGFLOW
®
shall not be held lia-
ble for any damage relating to,
or resulting from, an improper
use of the product, or for any
damage relating to, or resulting
from, servicing or repairs carri-
ed out by unqualied personnel
and/or with non-OEM spare
parts.
The warranty, which is valid
for 24 months from the date
of purchase, will no longer be
applicable should the product
suffer damage as a conse-
quence of the use of non-OEM
spare parts, tampering or
improper use.
When starting the installation,
check the following:
- the power supply is switched
off.
- the power lines can withstand
the maximum current.
- the cable bushings and circuit
board cover have been properly
assembled and secured ( see
Electrical Connections ).
- the power supply is tted with
regulation earthing and safety
devices.
When servicing the product,
check the following:
- the system is not pressurised
(turn a tap on)
- the power supply is switched
off.
Emergency Stop
When in use, the pump can
be stopped in the event of an
emergency:
press
STOP/RESTART .
PRESFLO
®
is put OUT OF
SERVICE.
For no reason, disassemble
the water accumulator with the
system pressurized.
Cover
Water accumulator
To set the running pres-
sure (Pm) and the max.
motor current (I max.), see
Conguration paragraph.
Water accumulator pressure.
Should be inated to a value 0,5 bar lower than
the running pressure.
0 50 100 150 200 l/min
0 5 10 15
m H
2
O
Manufacturer’s
settings
Other selectable settings
RUEN FR DEIT ES
2 l/min (0,5 gpm)
5,0 bar
(75 psi)
2,0 bar
(30 psi)
1,0 bar
(15 psi)

Summary

Electronic Pump Controller Overview

Technical Specifications

Details electrical, operational, and physical specifications of the PRESFLO® controller.

Operating Conditions

Covers compatible fluids, environmental limits, and power supply requirements.

Safety Regulations

Provides crucial safety instructions for installation, servicing, and usage.

Emergency Stop Function

Explains how to stop the pump immediately in an emergency situation.

Installation Guide

Preliminary Checks & Hydraulic Connections

Steps before installation, checking ratings, and hydraulic connection details.

Orientation, Position & Electrical Connections

Guidance on unit placement, orientation, and electrical wiring for IP65 protection.

First Start-Up Procedure

Steps for priming the pump and initial power-on sequence.

Operation and Status Indicators

No Power Supply

Indicates the state when the PRESFLO® controller is switched off.

Normal Service States

Describes normal operation: pump inactive, running, and during shutdown.

Out of Service & Manual Stop

Explains when the pump is stopped manually or put into standby.

Error States

Details temporary shutdowns due to dry running, frequent start-ups, or overload.

Troubleshooting and Configuration

Problem Diagnosis and Solutions

Lists common problems, their signals, possible causes, and solutions.

Adjustable Parameters (Pm, Imax)

Explains how to set running pressure (Pm) and maximum current (Imax) using trimmers.

Unit Information

Details on spare parts, dimensions, disposal, and compliance statements.

DGFLOW PRESFLO MULTI Specifications

General

Brand	DGFLOW
Model	PRESFLO MULTI
Category	Water Pump
Language	English