Wilo Wilo-COE-2-EMHIL, Installation And Operating Instructions Manual

Page: 6 / 56

6 WILO SE 04/2013
English
6.2.4 Description of the user interface (Fig. 4)
6.2.5 Description of the electronic board (Fig. 5)
1. Input terminal of the ElectronicControl.
2. Input terminal of the motor.
3. Protection fuse of the ElectronicControl input
(I: 20A, type: gG, U: 500Vac, breaking capacity I1:
120kA, size: 10 x 38mm).
4. Protection fuse of the motor input (I: 20A, type:
high speed, U: 690Vac, breaking capacity I1:
100kA, size: 10 x 38mm).
6.2.6 Diameter of the manifolds
COE 2-EMHIL series 3/5 m 3 /h: threaded manifolds 2"
6.2.7 Lack of water protection
The booster needs to be fitted with a dry-run-
ning protection device:
• Connection to public water supply: pressure
switch to be assembled on the suction manifold
and connected to the ElectronicControl.
• Connection to a tank: float switch to be installed
on the tank and connected to the
ElectronicControl.
6.3 Product function
6.3.1 Operating
The automatism of system is ensure by
ElectronicControl. 1 pump is set to Master for
the other.
ElectronicControl contains an electronic regula-
tion system using pressure and flow sensors and
a frequency inverter.
The electronic regulation system allows to reach
a constant pressure in the network whatever the
flow is and to minimize the power consumption
of the installation (automatic mode). The pres-
sure will be constant according to the set point
pressure originally preset.
In hand mode the pump can be tested at maxi-
mum speed.
In automatic mode the ElectronicControl starts
the pump when the installation pressure (NET P)
is lower than the set point pressure (P SET)
minus the pressure gap set (START DELTA P).
The ElectronicControl stops after a time period
set (TIME BEFORE STOP) when the installation
pressure (NET P) has reached the set point pres-
sure (P SET) and when the flow is zero.
The ElectronicControl protects the pump against
(§ 10.2):
- dry running,
- over currents,
- too high water temperatures,
- frost,
- short-circuits,
- over voltages,
- Under voltages.
In case of defect (such as dry running, overvolta-
ge …), the led blinks and the
ElectronicControl will try to start the pump regu-
larly. After many trials the ElectronicControl
finally stops and the led is ON but does not
blink anymore.
6.3.2 ElectronicControl setting
After connection to the pump and to the power
supply, the ElectronicControl will show the
model type and the version for 10 seconds. Then
it shows the STANDARD display mode.
Then the ElectronicControl has to be set in
accordance to the pump characteristics and to
the requirement of the installation, in order to
warranty a safe and efficient operation.
Press the push-button for 3 seconds to set
the ElectronicControl. The user can navigate in
both menu levels, SETTINGS or HISTORIC:
• SETTINGS: this level allows the setting of the
ElectronicControl according to the installation
and the pump.
• HISTORIC: this level displays the various counts
and alarms recorded.
To select a menu level, use the the
push-buttons or , then push to
select it.
The values displayed in the various menus can be
changed via the push-buttons or . With
the push-button the new value selected is
validated and the next menu is displayed on the
screen. With the push-button you exit SET-
TINGS (no saving of the last change) or HISTORIC
menu and go back to STANDARD display mode
(or SERVICE).
NOTA: the data are saved in non-volatile memo-
ry, this allows to save data even after switching
off.
Manual operating Green led
ElectronicControl
ON
Operating mode
Hand/Auto
Red led
Blinking : current error
Fix
: final error
Menu Yellow led Pump is working
Enter Green led
ON : Automatic mode
OFF : Manual mode
Value setting up
Value setting down
auto
auto