EUROSTER 11WB
–
USER MANUAL
2
4.
VISIBLE ELEMENTS
1.
230 V 50 Hz power cable of the controller
2.
230 V 50 Hz power cable of the CH pump
3.
230 V 50 Hz power cable of the DHW pump
4.
230 V 50 Hz power cable of the blower
5.
Thermal protection cable
6.
DHW temperature sensor cable
7.
CH temperature sensor cable
8.
Power switch
9.
LCD
10.
Knob
The display backlight turns off by default after one minute following the end of the controller
operation. The controller enables turning permanent backlight on. (section 8)
5.
CONTROLLER INSTALLATION
Hazardous voltage is present inside the controller and on its output cables.
Therefore, it is absolutely forbidden to install the device prior to
disconnecting its power supply. Such installation must be performed by
qualified technicians only. Do not install a controller showing signs of any
mechanical damage.
a)
mounting the controller:
⚫
using a pair of screws mount the controller box on a wall or any other supporting
structure (screw anchors with screws are supplied with the controller);
⚫
using fasteners fix controller cables to the wall.
b)
fixing the sensors:
⚫
do not immerse the sensors in liquids nor install them at flue gas outlets to the
stack;
⚫
fix the CH sensor on the boiler in a point specially designed for that purpose or on an
unshielded outlet pipe of the CH boiler (as close to the boiler as possible);
⚫
fix the DHW sensor on the tank point specially designed for that purpose;
⚫
using hose clips tighten the sensors to the pipe and cover them with thermal insulation.
c)
connecting power cables to the pumps:
⚫
connect the yellow or yellow-green wire (protective cable) with the terminal (
);
⚫
connect the blue wire to the terminal (N);
⚫
connect the brown wire to the terminal (L);
d)
connecting the power cable to the blower:
⚫
connect the yellow or yellow-green wire (protective cable) with the terminal (
);
⚫
connect the blue wire to the terminal (N);
⚫
connect the brown wire to the terminal (L);
e)
checking the connection:
⚫
check whether the cables have been connected correctly and tighten the covers of
terminal boxes of the pumps and of the blower.
f)
connecting the controller:
⚫
after securing the cables against any accidental rupture,
connect the power cable
to a 230 V / 50 Hz socket with an earthing pin.
g)
connecting the thermal protection:
⚫
fix a bimetallic circuit breaker along with a temperature sensor on the boiler in a point
specially designed for that purpose or on an unshielded outlet pipe of the CH boiler (as
close to the boiler as possible);
⚫
put the bimetallic circuit breaker against the pipe (the side without 90
°C label facing
the pipe), using hose clips fix it tight to the pipe and cover with thermal insulation.