Technical Specifications - DGFLOW PRESFLO MULTI Manual Del Usuario

USER'S MANUAL
ELECTRONIC PUMP CONTROLLER
PRESFLO is a device that
®
starts and stops the pump to
which it is fitted, 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 flow

Technical specifications

- Voltage: ~ 230 V / ~ 115 V - Frequency: 50-60 Hz
- Current: max 16A
- Protection grade: IP 65
- Start-up pressure ( Pm ): 1÷5 Bar (15-70 psi)
- Shut-off flow 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
- Max liquid temperature: 55°C
Before installing, the product, check
that the RATINGS correspond with those
required.
Losses
0
Water accumulator pressure.
Should be inflated to a value 0,5 bar lower than
the running pressure.
Operating conditions
A. Compatible/non compa-
tible fluids
PRESFLO is suitable for use
®
with clean water and chemical-
ly non-aggressive liquids. If the
fluid contains impurities, a filter
should be fitted 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
rate required is zero or less
than the "shut-off flow 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.
CODE: V00103101
V / Hz: ~230 / 50-60
16 A
I max:
SN 1506003
50 100 150
Working area
Pm
Qa
Shut-off flow rate
in the power supply is never
more or less than 10 % of the
RATING value.
Higher values may cause
PRESFLO
®
MULTI
Safety regulations
Before installing or using
PRESFLO , read this manual
®
carefully and thoroughly.
The pump should be installed
and serviced by qualified 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
B
use of the product, or for any
damage relating to, or resulting
from, servicing or repairs carri-
ed out by unqualified 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-
200 l/min
quence of the use of non-OEM
spare parts, tampering or
improper use.
When starting the installation,
check the following:
To set the running pres-
sure (Pm) and the max.
motor current (I max.), see
Configuration paragraph.
Manufacturer's
settings
Start-up pressure
2 l/min (0,5 gpm)
damage to the electronic
components.
PRESFLO can only be used
®
with single-phase pumps.
IT EN IT EN ES
- 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 fitted 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
®
SERVICE.
5,0 bar
For no reason, disassemble
(75 psi)
the water accumulator with the
system pressurized.
2,0 bar
(30 psi)
1,0 bar
(15 psi)
Flow rate
ES FR DE FR RU RU
is put OUT OF
Water accumulator
Cover
10194507A _rev.05