Coelbo EPR User manual

A
B
C
D

3
ENGLISH
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, ow 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 dierential 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-ood unction, start and stop delays, etc.
OPERATING CHARACTERISTICS
EPR DPR
Starting pressure Depends on the
adjusted outlet
pressure. Table 1.
Adjustable from
0,5bar to 5,5bar.
Table 2.
Outlet pressure Adjustable from
2,5 bar to 6 bar
by the rear allen
screw. Figure 1
and 2.
Adjustable from
2,5 bar to 6 bar
by the rear allen
screw. Figure 1
and 2.
Outlet pressure
reading
Manometer Digital
Dry-running pro-
tection
Yes Yes
Overcurrent pro-
tection
No Yes
ART* Fuction Yes Yes
Manual start
push-button
Yes Yes
Control panel LED indicator
lights and ENTER
push button
3-digit display,
LED indicator
lights and 4 push
buttons (up and
down arrows,
amps and enter)
APR function** Yes Yes
Anti-ooding
conguration.
No Yes
Stand-by mode No Yes
*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.
Ater this rst attempt are perormed 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.
TECHNICAL CHARACTERISTICS
• Rated motor power: 0,37-2,2KW
• Power supply: ~1 x 110-230Vac
• Frequency: 50/60Hz
•Max. current: 6A, cos  ≥ 0.6
• Protection degree: IP65*
• Maximum water temperature: 50ºC
• Maximum environment temperature: 60ºC
• Outlet pressure: (±0.5 bar) 2,5-6 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: 12 bar
• Hydraulic connection (types): G 1” M
G” 1/4 M
NPT 1” M
NPT ” 1/4 M
• Net weight (without cables): 2 kg
*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: exible with a disassembling
link for network protection, protecting the set from possible
exion 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-
lied technicians in compliance with regulation o
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.
If you have purchased the unit without cables follow dia-
gram B. EPR and DPR devices have the same electric wiring
diagram.
• Use cables type H07RN-F 3G1 or 3G1,5 with section
enough to the power installed.
• Do the pump connection U, V and .
• Do the power supply connection L, N and .
• The earth conductor must be longer than the others. It
will be the rst one to be mounted during the assembly
and the last one to be disconnected during the dis-
mantling.
The earth conductors connections are compulsory!

4
CONTROL PANEL (diagram C)
The meanings othe dierent control panel elements are
summarized on the following tables, where:
• O means lit LED light.
•( ( O ) ) means LED ashing.
DPR - Digital Pressure Regulator -
DISPLAY ACTION
OPERATION
MODE
Is showed on screen instantaneous
pressure or instantaneous current
consumption.
ADJUSTMENT
MODE
Is displayed on screen the adjusted start
pressure.
Is displayed the adjusted rated current.
ALARM MODE Is displayed the alarm code.
STAND-BY
MODE Are displayed 3 ashing dots.
BASIC
CONFIG.
Is displayed the sequence of basic con-
guration parameters.
ADVANCED
CONFIG.
Is displayed the sequence of advanced
conguration parameters.
LEDS DISPLAY ACTION
OIs displayed on screen the instan-
taneous pressure in bar
((O))
Pump ON and is displayed on
screen the instantaneous pressure
in bar
OIs displayed on screen the instan-
taneous pressure in psi
((O))
Pump ON and is displayed on
screen the instantaneous pressure
in psi
O
Is displayed on screen the instan-
taneous current consumption in
Ampere units
((O))
Pump ON and is displayed on
screen the instantaneous current
consumption in Ampere units
START
PRESSURE
O Is displayed the start pressure
((O)) Adjusting start pressure
FLOW
OIt indicates positive ow
ALARM
ORatied dry-running or overload
alarms
((O))
Dry-running alarm performing ART
or overload alarm preforming any
of the 4 restore attempts
P-BUTTON TOUCH ACTION
ENTER
click!
From state ON: any alarm is
restored.
From state OFF: system changes
to STATE ON, the pump starts.
From any confguration MENU:
the parameter value is accepted.
HOLD
DOWN
From state ON: unit OFF, relay
disconnection.
From state OFF: the pump starts
and keeps operating until the
push-button is released.
UP
ARROW
click! Pstart is displayed on the screen
for 3 seconds.
click! Increase the programming value.
3” Pstart adjustment mode.
DOWN
ARROW
click! Dicrease the programming value.
AMPERE
click!
Is displayed on the screen instanta-
neous current consumption.
If it is already displayed then we
switch to instantaneous pressure
view.
3” Rated current adjustment.
EPR - Electronic Pressure Regulator -
LEDS DISPLAY ACTION
POWER
SUPPLY
OIt indicates the device is connected
to the power supply.
ALARM
ORatied dry-running or overload
alarms
((O))
Dry-running alarm performing ART
or overload alarm preforming any of
the 4 restore attempts
PUMP
OIt indicates the pump is working.
FLOW
OIt indicates positive ow.
P-BUTTON TOUCH ACTION
click! Any alarm is restored.
HOLD
DOWN
The pump starts and keeps ope-
rating until the push-button is
released.

5
STARTUP
Before starting the device please read the previous
sections, especially “Hydraulic Installation” and “Elec-
trical connection”.
Follow next steps:
1. Start the device. Connect to the power supply and press
ENTER in the DPR model. Connect to the power supply
in the EPR model.
2. (Only DPR)
Set the pump rated current intensity value:
- Press during 3 seconds.
- The current intensity value is displayed on screen and
LED A is ashing (actory setting 6A).
-
By mean of and is adjusted the rated current reec-
ted in the characteristics plate of the motor. See Note 1.
- Press for validation.
3. (Only DPR)
Set the cut-in (start) pressure:
- Press during 3 seconds.
- The start pressure value is displayed on screen and LED
START is ashing.
- By mean of and is adjusted the start pressure
from 0,5 to 5,5 bar.
- Press for validation.
4. Set the maximum pressure of the installation:
- Open a tap.
- Take the provided allen key.
- Turn the regulation screw clockwise to increase the out-
let pressure and anticlockwise to decrease it (factory set-
ting 3 bar). Look at the working pressure viewer (Fig. D)
while turning the screw to have a srt aproximation o
the outlet pressure setting.
- Close the tap and do the nal adjustment looking at the
manometer (EPR) or the display (DPR).
- The regulated pressure should be at least 1bar less than
the maximum pressure of the pump.
EPR pressure diagram:
Table 1:
OUTLET
PRESSURE
CUT IN
PRESSURE
MINIMUM
PUMP
PRESSURE
MAXIMUM WA-
TER COLUMN
2 bar 1±0,5 bar 3 bar 4 m
3 bar 1,8±0,5 bar 4 bar 12 m
4 bar 2,5±0,5 bar 5 bar 18 m
5 bar 3,5±0,5 bar 6 bar 25 m
6 bar 4,5±0,5 bar 7 bar 30 m
DPR pressure diagram
Table 2:
OUTLET
PRESSURE
CUT IN
PRESSURE
MINIMUM
PUMP
PRESSURE
MAXIMUM WATER
COLUMN
2 bar 0,5-1,5 bar 3 bar 3-8 m
3 bar 0,5-2,5 bar 4 bar 3-15 m
4 bar 0,5-3,5 bar 5 bar 3-20 m
5 bar 0,5-4,5 bar 6 bar 3-30 m
6 bar 0,5-5,5 bar 7 bar 3-40 m
5. The unit EPR is ready to operate but the unit DPR has
more optional adjustments that can be set through basic
and advanced MENUS. See the next chapter.
Note 1: it is important to introduce exactly the rated
current specifed on the nameplate othe pump. Ia
new pump is installed this process should be repea-
ted.
Allen key
Figure 1
Figure 2
Viewer

6
BASIC MENU
+(diagram C)
- Press simultaneously + during 5 seconds.
- By mean of or the values can be changed.
- Press for validation.
- This is the parameters sequence:
TYPE SYSTEM REACTION FACTORY
SETTING
bar psi We can select the pressure units
displayed beetween bar and psi. bar
ADVANCED MENU + +
- Press simultaneously + + during 5 seconds.
- By mean of or the values can be changed.
- Press for validation.
- The parameters sequence is:
SCREEN SYSTEM REACTION
FAC-
TORY
SET-
TING
Ar0 Ar1 Activation of the automatic restore
system ART (Ar1) o disable (Ar0). Ar1
n01 n48
In case of enabled ART, it can be
set the number of restore at-
tempts, between 1 and 48.
48
t10 t40 It can be set the span of the at-
tempt between 10 and 40 seconds. 15”
Sb0 Sb1 Stand-by disabled (Sb0) or
enabled (Sb1) 0
P0.0 P_ON
With P_ON is activated a mini-
mum operating pressure. Under
this pressure is activated an alarm
(A11).
0.0
t05 t99 Time, in seconds, under minimal
pressure necessary to activate A11. 20
H00 H99
Anti-ooding conguration.
If activated, it stops the pump af-
ter programmed time (in minutes)
of continuous operation.
Disabled (H00), 1 minute (H01) ...
99 minutes (H99).
H00
rs0 rs1 Restore factory settings (rs1) rs0
REGISTER OPERATION DATA AND ALARMS + +
- Press simultaneously + + during 5 seconds.
- Press to advance in the REGISTER.
- The DATA sequence is:
MESSAGE DESCRIPTION SCOPE
rEc
HF Controller operating hours 0-65535
HP Pump operating hours 0-65535
CF Operating cycles
Number of start-stop cycles.
0-999999
Cr Number of connections to the
power supply.
0-65535
A01 Number of A01 alarms. 0-999
A02 Number of A02 alarms. 0-999
A05 Number of A05 alarms. 0-999
A11 Number of A11 alarms. 0-999
APM
Number of times the device has
registered higher pressure than
11bar / 160PSI
0-999
rPM Maximum pressure registered
by the device.
rSt
ENTER -> EXIT.
+ -> All the alarms are
restored
except the operation data.
PRESSURE SENSOR CALIBRATION
In case of wrong lecture of the pressure sensor it can be
adjusted again.
For the pressure sensor calibration is necessary to have a
pressure gauge in the installation. Proceed following next
steps:
ZERO REGULATION
1. Open the taps living the hydraulic net without pressure.
2. Press simultaneously the buttons and until the
display show 0.0 ashing.
3. Press to validate.
FULL SCALE
1. Set the outlet pressure equal to the maximum pressure
of the pump. In case of using a pump with higher pres-
sure than 6 bar, set the outlet pressure to 6 bar. (Go to
the point 4 of the STARTUP to remember how to set the
outlet pressure)
2. Start the device and wait until it stops the pump.
3. Press simultaneously the buttons and till the dis-
play ashes with a gure.
4. Adjust the pressure with the arrows push-buttons to get
the pressure desired.
5. Press to validate.
Examples:
MAXIMUM PUMP
PRESSURE
OUTLET
PRESSURE
ADJUSTED FULL
SCALE
4 bar 4 bar 4 bar
8 bar 6 bar 6 bar
Remark: pressure sensor decalibration should not be
a normal event. If it is frequently repeated contact the
technical service.

7
WARNINGS AND ALARMS
DPR
COD. ALARM DESCRIPTION SYSTEM REACTION
A01
O
DRY RUNNING
When is detected a dry-run operation the pump is automatically stopped. By mean
of ENTER the normal operation can be manually restored.
((O))
After the activation of the dry-running alarm if the Automatic system reset (ART) is
enabled, a rst attempt at 5 minutes and then an attempt every 30 minutes or 2
hours is performed in order to restore the normal operation. This alarm can also be
reset manually with the ENTER push-button. Ithe alarm persists ater 2h we nd a
denitive alarm.
A11
O
MINIMUM PRES-
SURE
When is detected a pressure below a pre-set value and for a pre-set period of time
in the ADVANCED PROGRAMMING MENU, the pump is automatically stopped. The
minimum pressure helps to detect a dry-run operation or pumps running far from its
best efciency point. This alarm is reset automatically as soon as the pressure exceeds
the limit value.
By mean of ENTER the normal operation can be manually restored.
((O))
After the activation of the minimum pressure alarm if the Automatic system reset
(ART) is enabled, a rst attempt at 5 minutes and then an attempt every 30 minutes
for 24 hours is performed in order to restore the normal operation. This alarm can
also be reset manually with the ENTER push-button. If the alarm persists after 24 h
we nd a denitive alarm.
A02 O
OVERLOAD
Overload alarm is activated when the nominal pump current is exceeded. 4 automatic
reset attempts prior to the nal alarm are perormed.
Normal operation can also be restored manually by pressing ENTER.
((O))
A05 O
DAMAGED
PRESSURE
TRANSMITTER
CONTACT WITH YOUR SUPPLIER
A30 O ANTI-FLOODING
FLOOD protection has been activated because the pump has been running conti-
nuously for a period of time equal to the limit set in the ADVANCED MENU.
It is manually reset by pressing ENTER.
MBr O MEMBRANE
REPLACEMENT
The membrane should be replaced after 200,000 operating cycles.
When the register of operating cycles reaches 200K-400K-600K-800K cycles the devi-
ce will be blocked showing on the screen “Mbr” to indicate that the number of cycles
has been reached and a membrane change must be made.
To RESET the normal operation press ENTER.
--- O OVER-PRESSURE
If the maximum pressure is exceeded the pump is stopped and are displayed 3
hyphens.
To RESET the normal operation press ENTER.
EPR
ALARM DESCRIPTION SYSTEM REACTION
O
DRY RUNNING
When is detected a dry-run operation the pump is automatically stopped. By mean of EN-
TER the normal operation can be manually restored.
((O))
After the activation of the dry-running alarm if the Automatic system reset (ART) is enabled,
arst attempt at 5 minutes and then an attempt every 30 minutes or 2hours is perormed
in order to restore the normal operation. This alarm can also be reset manually with the
ENTER push-button. Ithe alarm persists ater 2h we nd a denitive alarm.
CLASSIFICATION AND TYPE
According to IEC 60730-1 and EN 60730-1 this unit is a control sensor device, electronic, independent assembly, with ac-
tion type B (microdisconnection). Operating value: I <20% I learned. Pollution degree 2 (clean environment) or ow>2,5 l
min. Rated impulse voltage: cat II / 2500V. Temperatures for ball test: enclousure (75) and PCB (125).
EPR YouTube video DPR YouTube video