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GENERAL
Read carefully the instructions before installing this unit.
Verify the technical characteristics of the motor in order to
assure the compatibility with the device.
DESCRIPTION
•
EPR - Electronic Pressure Regulator -
Is an electronic drive for single-phase pumps up to 2,2 kW
(1~115-230V) with an innovative system of pressure reduc-
tion/regulation in order to mantain an steady outlet pres-
sure. Therefore, in addition to the typical features of tra-
ditional electronic pump controllers: integrated non-return
valve, flow sensor, accumulation membrane, pressure gau-
ge, indicator led-lights, dry-run protection, automatic res-
tore system (ART), ... it is adjusted and stabilized the output
pressure, avoiding overloads and water hammer, ultimately,
improving the comfort and durability of the installation.
•
DPR - Digital Pressure Regulator -
Evolutes from EPR, adding to its features a digital display
with instataneous indication of current consumption and
outlet pressure since it houses current and pressure transdu-
cers inside. This device allows disassociating the regulation
of the outlet pressure from the cut-in pressure to improve
the elasticity of the system's hydraulic reserve, favoring the
prolongation of inactive pauses and, consequently, redu-
cing the number of starts of the electric pump. This inde-
pendence from pressure regulation also allows operation
with a minimum differential between the cut-in pressure
(ON) and the outlet pressure (OUT). It also integrates alarm
and function registers, as well as the possibility of adjusting
multiple operating parameters such as automatic reset sys-
tem, anti-flood function, start and stop delays, etc.
OPERATING CHARACTERISTICS
Starting pressure
Depends on the
adjusted outlet
pressure. Table 1.
Outlet pressure
Adjustable from
2,5 bar to 6 bar
by the rear allen
screw. Figure 1
and 2.
Outlet pressure
Manometer
reading
Dry-running pro-
Yes
tection
Overcurrent pro-
No
tection
ART* Fuction
Yes
Manual start
Yes
push-button
Control panel
LED indicator
lights and ENTER
push button
APR function**
Yes
Anti-flooding
No
configuration.
Stand-by mode
No
IN-OUT***
No
EPR
DPR
Adjustable from
0,5bar to 5,5bar.
Table 2.
Adjustable from
2,5 bar to 6 bar
by the rear allen
screw. Figure 1
and 2.
Digital
Yes
Yes
Yes
Yes
3-digit display,
LED indicator
lights and 4 push
buttons (up and
down arrows,
amps and enter)
Yes
Yes
Yes
Yes, on request
*ART FUNCTION (Automatic Reset Test)
When the device has stopped the pump by the interven-
tion of the dry-running protection system the ART tries,
after 5 minutes, to re-start the pump in order to restore the
water supply.
After this first attempt are performed consecutive attempts
every 30 minutes.
In the DPR, this function can be activated in the ADVAN-
CED MENU. It can also be set the number of attempts (1-
48) and the span of the attempt (10-40 seconds).
**APR FUNCTION (Anti-blocking Periodic Routine)
After 72 hours without operation the pump is automatically
started for 10 seconds in order to avoid rotor locking. In
the DPR the display will show the message "APr" while the
pump is operating. In the EPR the pump LED will be on
during this operation.
***IN-OUT FUNCTION
IN: Connection for programmable input as level switch or
external activation to guarantee a minimum of water in the
suction tank or to enable and disable the pump operation
remotely.
OUT: Volt-free contact for monitoring of alarms displayed
on the screen caused by irregularities or problems in the
system.
TECHNICAL CHARACTERISTICS
• Rated motor power:
• Power supply:
• Frequency:
• Max. current:
• Protection degree:
• Maximum water temperature:
• Maximum environment temperature: 60ºC
• Outlet pressure: (±0.5 bar)
• Starting pressure range:
• DPR: 0,5 - 5,5 bar (factory setting 1,5 bar)
• EPR: 1,0 - 4,5 bar. Table 1.
• Maximum operating pressure:
• Hydraulic connection (types):
• Net weight (without cables):
*Plugs and sockets built into the wiring of the device
could modify the declared IP rating.
HIDRAULIC INSTALLATION (diagram A)
Before proceeding with hydraulic connection it is
essential to prime the pump correctly. DPR or EPR
must be installed in a vertical position (arrows in upward
position), thus connecting the inlet opening directly to the
pump outlet; and the outlet to the network. The following
accessories are recommended: flexible with a disassembling
link for network protection, protecting the set from possible
flexion charges and vibrations, ball valve which permits the
isolation of the pump from the net, a tap at the same level
of the unit. See diagram A.
ELECTRIC CONNECTION (diagram B)
The electric connection must be performed by qua-
lified technicians in compliance with regulation of
each country. Before doing manipulations inside the device,
it must be disconnected from the electric supply.
Wrong connection could spoil the electronic circuit.
The manufacturer declines all responsability in dama-
ges caused by wrong connections.
Check if power supply is beetween 110-230V.
3
0,37-2,2KW
~1 x 110-230Vac
50/60Hz
16A, cos fi ≥ 0.6
IP65*
50ºC
2,5-6 bar
12 bar
G 1" M
G 1" 1/4 M
NPT 1" M
NPT 1" 1/4 M
2 kg
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