Electrical installation
Installation and maintenance instructions ecoTEC plus 0020134833_01
33
8
i
Ensure that the connection cables are securely
fastened to the plug terminals.
8.5
Connecting the controller
8.5.1
Fitting the controller
>
Fit the controllers in accordance with the relevant oper-
ating and installation instructions.
8.5.2 Connecting controllers to the electronic
system
b
Caution.
Risk of damage caused by incorrect
installation.
Connecting wires that have been stripped
too far may cause short circuits and dam-
age the electronics if a strand accidentally
comes loose.
>
Only strip the outer sheathing of flexible
cables to a maximum of 3 cm to prevent
short circuits.
>
Lay the lines correctly.
>
Use strain reliefs.
b
Caution.
Risk of damage caused by incorrect
installation.
A mains voltage at the incorrect plug termi-
nals on the ProE system may destroy the
electronics.
>
Do not connect a mains voltage to the
eBUS terminals (+/-).
i
Ensure that the conductors are securely fas-
tened to the plug terminals of the ProE plug.
>
Open the electronics box (
¬ section 8.2
).
>
Route the supply lines of the components to be con-
nected (e.g. external controllers, external sensors)
through the left cable duct (
¬ fig. 8.1, pos. 4
) on the
underside of the boiler.
>
Use the strain reliefs (
1
) provided.
>
Shorten the supply lines as necessary.
>
Only strip the outer sheathing of the supply lines to a
maximum of 3 cm.
>
Ensure that the inner conductor insulation is not dam-
aged when stripping the outer sheathing.
>
Only strip inner conductors just enough to establish
good, sound connections.
>
Fit the stripped ends of the conductors with crimp pin
terminals to ensure a secure connection free from loose
strands and to thus prevent short circuits.
>
Connect the ProE plug to the supply lines of the control-
ler using a screwdriver.
>
Insert the ProE plug into the associated PCB slot
(
¬ fig. 8.5
).
>
Lay the lines correctly.
>
Secure the cable in the electronics box using the strain
reliefs.
>
If you connect a 230 V AC time and temperature control
to the boiler, then remove the bridge at input 24 V = RT
(X100 or X106) if a bridge exists.
>
If you connect a weather compensator or room tempera-
ture control via eBUS, then bridge input 24 V = RT (X100
or X106) if no bridge exists.
>
I If using low voltage (24 V) controls connect these in
place of the bridge marked RT 24 V (X100 or X106).
>
Close the electronics box (
¬ section 8.1
).
>
In order to achieve pump operating mode "Comfort"
(continuously running pump) for multi-circuit controllers,
change the diagnostics code D.018 Pump operating mode
from "Eco" (intermittent pump) to "Comfort" (
¬ sec-
tion 11.1.2
).
i
Please note that the bridge at the ProE plug
(Burner off) must be removed when connecting
a maximum thermostat (contact thermostat) for
underfloor heating.
Summary of Contents for ecoTEC plus VUI
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