27
3062547_201802
20 Electrical connection
General information
The device power supply terminals are 'live' even
when the ON/OFF switch has been switched OFF.
The installation may be carried out only by an
approved electrical contractor. Observe VDE
regulations as well as all local regulations of your
power supply utility.
Terminal box
In the delivered condition, the terminal box is fitted to the back
panel of the boiler.
Unclip the terminal box from the holder. The terminal box can
be mounted on the wall to the right or left of the boiler. The
control and safety devices are fully wired and tested.
Power supply
In the case of a permanent connection, provide the power supply
via a mains isolator (e.g. fuse, heating system emergency stop),
which ensures at least 3 mm contact separation for all poles.
Power cable, flexible, 3x 1.0 mm² or rigid, max. 3x 1.5 mm².
The maximum current carrying capacity of the outputs is 2 A,
but a total of 5 A must not be exceeded.
Installation information – electrical connection
Isolate the system from the power supply before opening.
Unclip the terminal box from the holder.
Open the terminal box.
Screw the strain relief into the holes provided.
Strip approx. 70 mm off the power cable insulation.
Push the cable through the strain relief and tighten the strain
relief.
Terminate the appropriate cores at the Rast-5 plug.
Push the inserts back into the terminal box casing.
Insert the Rast-5 plug
Fit the cover.
Fuse
M 5A
Mains
230 V / 50 Hz
2-wire eBus connection
Replacement
Fuse
Outside sensor
Cylinder
sensor
Programmable input E1
(24 V), potential-free
Remove jumper a/b when
making the connection
Heating
circuit
pump
Cylinder primary
pump
Electric
Junction boxes
Power condensate
pump max. 2 A
TS stratification pump
Stratification
sensor
Control signal
Stratification pump
Alarm switch
Condensate pump
Programmable
Output A1
(230VAC; 200VA)
Output A1 to
DHW circulation
Stratification sensor
Control signal
Stratification pump
Cylinder sensor
Stratification pump
Cylinder charging pump
Isolate the boiler from the power supply before
changing the fuse. The ON/OFF switch on the
appliance does not provide isolation from the
power supply. Danger from 'live' electrical
components. Never touch electrical components
or contacts as long as the boiler has not been
isolated from the power supply. Danger to life!
For installation in Austria: Observe the ÖVE
regulations and requirements and those of your
local power supply utility.
Summary of Contents for COB
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